./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4156247771 <...> x resumed>) = 0 [pid 19950] close(3 [pid 19949] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19948] <... futex resumed>) = 1 [pid 19947] exit_group(0 [pid 19946] <... futex resumed>) = 0 [pid 19950] <... close resumed>) = 0 [pid 19949] <... futex resumed>) = ? [pid 19948] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19947] <... exit_group resumed>) = ? [pid 19946] exit_group(0 [pid 19950] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19949] +++ exited with 0 +++ [pid 19946] <... exit_group resumed>) = ? [pid 19951] set_robust_list(0x555556ba76e0, 24) = 0 [pid 19947] +++ exited with 0 +++ [pid 19950] <... futex resumed>) = 0 [pid 19948] <... futex resumed>) = ? [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19947, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 19951] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19950] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 19951] <... prctl resumed>) = 0 [pid 19950] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] <... restart_syscall resumed>) = 0 [pid 19951] setpgid(0, 0 [pid 19950] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19948] +++ exited with 0 +++ [pid 19946] +++ exited with 0 +++ [pid 19951] <... setpgid resumed>) = 0 [pid 19950] <... mprotect resumed>) = 0 [pid 19950] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19946, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 19951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 19951] <... openat resumed>) = 3 [pid 19950] <... clone resumed>, parent_tid=[19952], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19952 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 19951] write(3, "1000", 4 [pid 19950] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 19951] <... write resumed>) = 4 [pid 19950] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19951] close(3 [pid 19950] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] close(3 [pid 19951] <... close resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3601] <... close resumed>) = 0 [pid 19951] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19953 attached [pid 19951] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19951] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] close(3 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19953 ./strace-static-x86_64: Process 19952 attached [pid 19953] set_robust_list(0x555556ba76e0, 24 [pid 19951] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] <... close resumed>) = 0 [pid 19953] <... set_robust_list resumed>) = 0 [pid 19952] set_robust_list(0x7f61a3ef39e0, 24 [pid 19951] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19953] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19952] <... set_robust_list resumed>) = 0 [pid 19951] <... mprotect resumed>) = 0 [pid 19953] <... prctl resumed>) = 0 [pid 19952] mkdir("./file0", 0777 [pid 19951] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 19955 attached ./strace-static-x86_64: Process 19954 attached [pid 19953] setpgid(0, 0 [pid 19952] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19954 [pid 19955] set_robust_list(0x7f61a3ef39e0, 24 [pid 19954] set_robust_list(0x555556ba76e0, 24 [pid 19951] <... clone resumed>, parent_tid=[19955], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19955 [pid 19955] <... set_robust_list resumed>) = 0 [pid 19954] <... set_robust_list resumed>) = 0 [pid 19953] <... setpgid resumed>) = 0 [pid 19952] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19951] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19955] mkdir("./file0", 0777 [pid 19954] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19952] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19951] <... futex resumed>) = 0 [pid 19955] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19954] <... prctl resumed>) = 0 [pid 19952] <... futex resumed>) = 1 [pid 19951] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19950] <... futex resumed>) = 0 [pid 19955] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19954] setpgid(0, 0 [pid 19953] <... openat resumed>) = 3 [pid 19952] pipe2( [pid 19950] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19955] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19954] <... setpgid resumed>) = 0 [pid 19953] write(3, "1000", 4 [pid 19952] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19950] <... futex resumed>) = 0 [pid 19955] <... futex resumed>) = 1 [pid 19954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19953] <... write resumed>) = 4 [pid 19952] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19951] <... futex resumed>) = 0 [pid 19950] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19955] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19954] <... openat resumed>) = 3 [pid 19953] close(3 [pid 19952] <... futex resumed>) = 0 [pid 19951] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19950] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19955] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19954] write(3, "1000", 4 [pid 19953] <... close resumed>) = 0 [pid 19952] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19951] <... futex resumed>) = 0 [pid 19950] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19955] pipe2( [pid 19954] <... write resumed>) = 4 [pid 19953] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19952] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19951] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19950] <... futex resumed>) = 0 [pid 19955] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19954] close(3 [pid 19953] <... futex resumed>) = 0 [pid 19952] dup(4 [pid 19950] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19955] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19954] <... close resumed>) = 0 [pid 19953] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19952] <... dup resumed>) = 5 [pid 19955] <... futex resumed>) = 1 [pid 19954] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19953] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19952] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19951] <... futex resumed>) = 0 [pid 19955] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19954] <... futex resumed>) = 0 [pid 19953] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19952] <... futex resumed>) = 1 [pid 19951] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19950] <... futex resumed>) = 0 [pid 19955] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19954] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19953] <... mprotect resumed>) = 0 [pid 19952] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19951] <... futex resumed>) = 0 [pid 19950] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19955] dup(4 [pid 19954] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19953] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19952] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19951] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19950] <... futex resumed>) = 0 [pid 19955] <... dup resumed>) = 5 [pid 19954] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19955] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19954] <... mprotect resumed>) = 0 [pid 19953] <... clone resumed>, parent_tid=[19956], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19956 [pid 19952] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19951] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19950] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19955] <... futex resumed>) = 0 [pid 19954] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19953] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19955] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19951] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 19956 attached [pid 19955] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19954] <... clone resumed>, parent_tid=[19957], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19957 [pid 19956] set_robust_list(0x7f61a3ef39e0, 24 [pid 19955] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19954] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19953] <... futex resumed>) = 0 [pid 19951] <... futex resumed>) = 0 ./strace-static-x86_64: Process 19957 attached [pid 19954] <... futex resumed>) = 0 [pid 19953] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19951] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19957] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 19954] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19952] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19957] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 19957] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19957] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 19954] <... futex resumed>) = 0 [pid 19952] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19957] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19954] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19952] <... futex resumed>) = 1 [pid 19950] <... futex resumed>) = 0 [pid 19957] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19954] <... futex resumed>) = 0 [pid 19952] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19950] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19957] pipe2( [pid 19954] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19952] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19950] <... futex resumed>) = 0 [pid 19957] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19950] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19957] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 19957] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19956] <... set_robust_list resumed>) = 0 [pid 19956] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 19956] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19956] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19954] <... futex resumed>) = 0 [pid 19952] write(5, NULL, 176 [pid 19956] <... futex resumed>) = 1 [pid 19954] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19953] <... futex resumed>) = 0 [pid 19952] <... write resumed>) = -1 EFAULT (Bad address) [pid 19957] <... futex resumed>) = 0 [pid 19956] pipe2( [pid 19955] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19954] <... futex resumed>) = 1 [pid 19953] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19952] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19957] dup(4 [pid 19956] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19955] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19954] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19953] <... futex resumed>) = 0 [pid 19952] <... futex resumed>) = 1 [pid 19950] <... futex resumed>) = 0 [pid 19957] <... dup resumed>) = 5 [pid 19956] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19955] <... futex resumed>) = 1 [pid 19953] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19952] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19951] <... futex resumed>) = 0 [pid 19950] exit_group(0 [pid 19957] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19956] <... futex resumed>) = 0 [pid 19955] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19953] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19951] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19950] <... exit_group resumed>) = ? [pid 19952] <... futex resumed>) = ? [pid 19957] <... futex resumed>) = 1 [pid 19956] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19955] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19954] <... futex resumed>) = 0 [pid 19953] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19951] <... futex resumed>) = 0 [pid 19957] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19955] write(5, NULL, 176 [pid 19954] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19957] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19955] <... write resumed>) = -1 EFAULT (Bad address) [pid 19954] <... futex resumed>) = 0 [pid 19953] <... futex resumed>) = 0 [pid 19952] +++ exited with 0 +++ [pid 19956] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19951] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19950] +++ exited with 0 +++ [pid 19957] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19956] dup(4 [pid 19955] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19954] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19953] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19951] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19950, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 19956] <... dup resumed>) = 5 [pid 19955] <... futex resumed>) = 0 [pid 19951] exit_group(0 [pid 19956] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19951] <... exit_group resumed>) = ? [pid 19956] <... futex resumed>) = 1 [pid 19953] <... futex resumed>) = 0 [pid 19956] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19953] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19956] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19953] <... futex resumed>) = 0 [pid 19956] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19953] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19955] +++ exited with 0 +++ [pid 19951] +++ exited with 0 +++ [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 19958 ./strace-static-x86_64: Process 19958 attached [pid 19958] set_robust_list(0x555556ba76e0, 24 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19951, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 19958] <... set_robust_list resumed>) = 0 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 19958] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19957] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] <... restart_syscall resumed>) = 0 [pid 19958] <... prctl resumed>) = 0 [pid 19957] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19958] setpgid(0, 0 [pid 19957] <... futex resumed>) = 1 [pid 19954] <... futex resumed>) = 0 [pid 19957] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19956] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19954] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 19958] <... setpgid resumed>) = 0 [pid 19957] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19956] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19954] <... futex resumed>) = 0 [pid 19958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19957] write(5, NULL, 176 [pid 19956] <... futex resumed>) = 1 [pid 19954] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19953] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 19958] <... openat resumed>) = 3 [pid 19957] <... write resumed>) = -1 EFAULT (Bad address) [pid 19956] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19953] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 19958] write(3, "1000", 4 [pid 19957] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19956] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19953] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19958] <... write resumed>) = 4 [pid 19957] <... futex resumed>) = 1 [pid 19956] write(5, NULL, 176 [pid 19954] <... futex resumed>) = 0 [pid 19953] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] close(3 [pid 19958] close(3 [pid 19957] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19956] <... write resumed>) = -1 EFAULT (Bad address) [pid 19954] exit_group(0 [pid 19957] <... futex resumed>) = ? [pid 19954] <... exit_group resumed>) = ? [pid 19957] +++ exited with 0 +++ [pid 19954] +++ exited with 0 +++ [pid 19956] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 19958] <... close resumed>) = 0 [pid 19956] <... futex resumed>) = 1 [pid 19953] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19954, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19958] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19956] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19953] exit_group(0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 19953] <... exit_group resumed>) = ? [pid 19956] <... futex resumed>) = ? [pid 19958] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 19959 attached [pid 19959] set_robust_list(0x555556ba76e0, 24) = 0 [pid 19956] +++ exited with 0 +++ [pid 19953] +++ exited with 0 +++ [pid 19958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19959 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19953, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 19958] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19959] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 19958] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] <... openat resumed>) = 3 [pid 19959] <... prctl resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 19958] <... mprotect resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 19959] setpgid(0, 0) = 0 [pid 19959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19958] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19959] <... openat resumed>) = 3 [pid 3607] close(3 [pid 3601] <... openat resumed>) = 3 [pid 19958] <... clone resumed>, parent_tid=[19960], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19960 [pid 3607] <... close resumed>) = 0 [pid 19958] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] ioctl(3, LOOP_CLR_FD [pid 19959] write(3, "1000", 4 [pid 19958] <... futex resumed>) = 0 [pid 19959] <... write resumed>) = 4 [pid 19959] close(3) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19959] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19958] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19961 [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19959] <... futex resumed>) = 0 [pid 19959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 19959] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 19959] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19962 [pid 19959] <... clone resumed>, parent_tid=[19963], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19963 ./strace-static-x86_64: Process 19960 attached [pid 19959] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19960] set_robust_list(0x7f61a3ef39e0, 24 [pid 19959] <... futex resumed>) = 0 [pid 19960] <... set_robust_list resumed>) = 0 [pid 19959] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19960] mkdir("./file0", 0777./strace-static-x86_64: Process 19962 attached ) = -1 EEXIST (File exists) [pid 19962] set_robust_list(0x555556ba76e0, 24 [pid 19960] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 19963 attached [pid 19962] <... set_robust_list resumed>) = 0 [pid 19960] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 19961 attached [pid 19963] set_robust_list(0x7f61a3ef39e0, 24 [pid 19962] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19960] <... futex resumed>) = 1 [pid 19958] <... futex resumed>) = 0 [pid 19963] <... set_robust_list resumed>) = 0 [pid 19962] <... prctl resumed>) = 0 [pid 19960] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19958] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19963] mkdir("./file0", 0777 [pid 19962] setpgid(0, 0 [pid 19961] set_robust_list(0x555556ba76e0, 24 [pid 19960] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19958] <... futex resumed>) = 0 [pid 19963] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19962] <... setpgid resumed>) = 0 [pid 19961] <... set_robust_list resumed>) = 0 [pid 19960] pipe2( [pid 19958] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19963] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19960] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19963] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19962] <... openat resumed>) = 3 [pid 19961] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19960] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19963] <... futex resumed>) = 1 [pid 19962] write(3, "1000", 4 [pid 19961] <... prctl resumed>) = 0 [pid 19960] <... futex resumed>) = 1 [pid 19959] <... futex resumed>) = 0 [pid 19958] <... futex resumed>) = 0 [pid 19963] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19962] <... write resumed>) = 4 [pid 19961] setpgid(0, 0 [pid 19960] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19959] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19958] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19962] close(3 [pid 19961] <... setpgid resumed>) = 0 [pid 19960] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19959] <... futex resumed>) = 0 [pid 19958] <... futex resumed>) = 0 [pid 19963] pipe2( [pid 19962] <... close resumed>) = 0 [pid 19961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19960] dup(4 [pid 19959] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19958] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19963] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19962] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19961] <... openat resumed>) = 3 [pid 19960] <... dup resumed>) = 5 [pid 19963] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19962] <... futex resumed>) = 0 [pid 19961] write(3, "1000", 4 [pid 19960] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19963] <... futex resumed>) = 1 [pid 19962] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19961] <... write resumed>) = 4 [pid 19960] <... futex resumed>) = 1 [pid 19959] <... futex resumed>) = 0 [pid 19958] <... futex resumed>) = 0 [pid 19963] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19962] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19961] close(3 [pid 19960] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19959] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19958] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19962] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19961] <... close resumed>) = 0 [pid 19960] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19959] <... futex resumed>) = 0 [pid 19958] <... futex resumed>) = 0 [pid 19963] dup(4 [pid 19962] <... mprotect resumed>) = 0 [pid 19961] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19960] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19959] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19958] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19963] <... dup resumed>) = 5 [pid 19962] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19961] <... futex resumed>) = 0 [pid 19963] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19961] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19963] <... futex resumed>) = 1 [pid 19962] <... clone resumed>, parent_tid=[19964], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19964 [pid 19961] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19959] <... futex resumed>) = 0 [pid 19963] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19962] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19961] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19959] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19962] <... futex resumed>) = 0 [pid 19961] <... mprotect resumed>) = 0 [pid 19959] <... futex resumed>) = 0 [pid 19963] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19962] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19959] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19961] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[19965], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19965 [pid 19961] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19960] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19961] <... futex resumed>) = 0 [pid 19960] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19961] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19960] <... futex resumed>) = 1 [pid 19958] <... futex resumed>) = 0 ./strace-static-x86_64: Process 19964 attached [pid 19960] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19958] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19964] set_robust_list(0x7f61a3ef39e0, 24 [pid 19960] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19958] <... futex resumed>) = 0 [pid 19964] <... set_robust_list resumed>) = 0 [pid 19960] write(5, NULL, 176 [pid 19958] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 19965 attached [pid 19964] mkdir("./file0", 0777 [pid 19963] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19960] <... write resumed>) = -1 EFAULT (Bad address) [pid 19964] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19963] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19960] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19965] set_robust_list(0x7f61a3ef39e0, 24 [pid 19964] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19963] <... futex resumed>) = 1 [pid 19960] <... futex resumed>) = 1 [pid 19959] <... futex resumed>) = 0 [pid 19958] <... futex resumed>) = 0 [pid 19965] <... set_robust_list resumed>) = 0 [pid 19964] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19963] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19960] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19959] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19958] exit_group(0 [pid 19965] mkdir("./file0", 0777 [pid 19964] <... futex resumed>) = 1 [pid 19963] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19962] <... futex resumed>) = 0 [pid 19960] <... futex resumed>) = ? [pid 19959] <... futex resumed>) = 0 [pid 19958] <... exit_group resumed>) = ? [pid 19965] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19964] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19963] write(5, NULL, 176 [pid 19962] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19960] +++ exited with 0 +++ [pid 19959] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19964] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19963] <... write resumed>) = -1 EFAULT (Bad address) [pid 19962] <... futex resumed>) = 0 [pid 19964] pipe2( [pid 19963] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19965] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19962] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19958] +++ exited with 0 +++ [pid 19965] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19964] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19963] <... futex resumed>) = 1 [pid 19959] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19958, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 19965] <... futex resumed>) = 1 [pid 19964] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19963] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19961] <... futex resumed>) = 0 [pid 19959] exit_group(0 [pid 19965] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19964] <... futex resumed>) = 1 [pid 19963] <... futex resumed>) = ? [pid 19962] <... futex resumed>) = 0 [pid 19961] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19959] <... exit_group resumed>) = ? [pid 19965] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19964] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19963] +++ exited with 0 +++ [pid 19962] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19961] <... futex resumed>) = 0 [pid 19959] +++ exited with 0 +++ [pid 19965] pipe2( [pid 19964] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19962] <... futex resumed>) = 0 [pid 19961] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19959, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 19965] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19964] dup(4 [pid 19962] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19965] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19964] <... dup resumed>) = 5 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 19965] <... futex resumed>) = 1 [pid 19964] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19961] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 19965] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19964] <... futex resumed>) = 1 [pid 19962] <... futex resumed>) = 0 [pid 19961] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 19965] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19964] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19962] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19961] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 19965] dup(4 [pid 19964] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19962] <... futex resumed>) = 0 [pid 19961] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 19965] <... dup resumed>) = 5 [pid 19964] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19962] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... close resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 19965] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 19966 [pid 19964] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19964] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 19962] <... futex resumed>) = 0 [pid 19964] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19962] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 19965] <... futex resumed>) = 1 [pid 19964] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19962] <... futex resumed>) = 0 [pid 19961] <... futex resumed>) = 0 [pid 19965] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19964] write(5, NULL, 176 [pid 19962] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19961] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19965] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19964] <... write resumed>) = -1 EFAULT (Bad address) [pid 19961] <... futex resumed>) = 0 [pid 3604] close(3 [pid 19965] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19964] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19961] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19964] <... futex resumed>) = 1 [pid 19962] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 ./strace-static-x86_64: Process 19966 attached [pid 19964] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19962] exit_group(0 [pid 19966] set_robust_list(0x555556ba76e0, 24 [pid 19964] <... futex resumed>) = ? [pid 19962] <... exit_group resumed>) = ? [pid 19966] <... set_robust_list resumed>) = 0 [pid 19964] +++ exited with 0 +++ [pid 19962] +++ exited with 0 +++ [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19966] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 19966] setpgid(0, 0) = 0 [pid 19966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19967 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19962, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 19966] <... openat resumed>) = 3 [pid 19966] write(3, "1000", 4) = 4 [pid 19966] close(3) = 0 [pid 19966] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 19966] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 19967 attached ) = 0x7f61a3ed3000 [pid 19967] set_robust_list(0x555556ba76e0, 24 [pid 19966] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19967] <... set_robust_list resumed>) = 0 [pid 19966] <... mprotect resumed>) = 0 [pid 19967] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19966] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19967] <... prctl resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 19967] setpgid(0, 0 [pid 19966] <... clone resumed>, parent_tid=[19968], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19968 [pid 19967] <... setpgid resumed>) = 0 [pid 19966] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19966] <... futex resumed>) = 0 [pid 19967] <... openat resumed>) = 3 [pid 19966] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 19967] write(3, "1000", 4 [pid 19965] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19967] <... write resumed>) = 4 [pid 19965] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 19967] close(3 [pid 19961] <... futex resumed>) = 0 [pid 19965] <... futex resumed>) = 1 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 19967] <... close resumed>) = 0 [pid 19965] write(5, NULL, 176 [pid 19961] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19967] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19965] <... write resumed>) = -1 EFAULT (Bad address) [pid 19961] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 19968 attached [pid 19967] <... futex resumed>) = 0 [pid 19965] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19961] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] close(3 [pid 19968] set_robust_list(0x7f61a3ef39e0, 24 [pid 19967] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19961] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] <... close resumed>) = 0 [pid 19968] <... set_robust_list resumed>) = 0 [pid 19967] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19965] <... futex resumed>) = 0 [pid 19961] exit_group(0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19968] mkdir("./file0", 0777 [pid 19967] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19961] <... exit_group resumed>) = ? [pid 19968] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19967] <... mprotect resumed>) = 0 [pid 19968] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19967] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19968] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19969 [pid 19968] <... futex resumed>) = 1 [pid 19967] <... clone resumed>, parent_tid=[19970], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19970 [pid 19966] <... futex resumed>) = 0 [pid 19968] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19967] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19966] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19967] <... futex resumed>) = 0 [pid 19966] <... futex resumed>) = 0 [pid 19965] +++ exited with 0 +++ [pid 19961] +++ exited with 0 +++ [pid 19968] pipe2( [pid 19967] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19966] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19968] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19961, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 19968] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 19968] <... futex resumed>) = 1 [pid 19966] <... futex resumed>) = 0 [pid 19968] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19966] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 19968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19966] <... futex resumed>) = 0 [pid 19968] dup(4 [pid 19966] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 19970 attached [pid 19968] <... dup resumed>) = 5 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 19969 attached [pid 19970] set_robust_list(0x7f61a3ef39e0, 24 [pid 19968] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 19970] <... set_robust_list resumed>) = 0 [pid 19968] <... futex resumed>) = 1 [pid 19966] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 19970] mkdir("./file0", 0777 [pid 19969] set_robust_list(0x555556ba76e0, 24 [pid 19968] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19966] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19970] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19969] <... set_robust_list resumed>) = 0 [pid 19968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19966] <... futex resumed>) = 0 [pid 3607] close(3 [pid 19970] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19969] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19968] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19966] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 19970] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19969] <... prctl resumed>) = 0 [pid 19970] <... futex resumed>) = 1 [pid 19967] <... futex resumed>) = 0 [pid 19970] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19967] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19970] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19967] <... futex resumed>) = 0 [pid 19970] pipe2( [pid 19967] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19970] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19970] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19968] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19970] <... futex resumed>) = 1 [pid 19968] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19967] <... futex resumed>) = 0 [pid 19970] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19968] <... futex resumed>) = 1 [pid 19967] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19966] <... futex resumed>) = 0 [pid 19970] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19969] setpgid(0, 0 [pid 19968] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19967] <... futex resumed>) = 0 [pid 19966] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19970] dup(4 [pid 19968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19967] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19966] <... futex resumed>) = 0 [pid 19970] <... dup resumed>) = 5 [pid 19968] write(5, NULL, 176 [pid 19966] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19970] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19969] <... setpgid resumed>) = 0 [pid 19968] <... write resumed>) = -1 EFAULT (Bad address) [pid 19970] <... futex resumed>) = 1 [pid 19968] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19967] <... futex resumed>) = 0 [pid 19969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19971 [pid 19970] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19968] <... futex resumed>) = 1 [pid 19969] <... openat resumed>) = 3 [pid 19967] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19966] <... futex resumed>) = 0 [pid 19970] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19969] write(3, "1000", 4 [pid 19968] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19967] <... futex resumed>) = 0 [pid 19966] exit_group(0 [pid 19970] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19969] <... write resumed>) = 4 [pid 19968] <... futex resumed>) = ? [pid 19967] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19966] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 19971 attached [pid 19970] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19969] close(3 [pid 19968] +++ exited with 0 +++ [pid 19966] +++ exited with 0 +++ [pid 19970] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19969] <... close resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19966, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 19970] <... futex resumed>) = 1 [pid 19969] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19967] <... futex resumed>) = 0 [pid 19970] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19969] <... futex resumed>) = 0 [pid 19967] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19970] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19969] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19967] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 19971] set_robust_list(0x555556ba76e0, 24 [pid 19970] write(5, NULL, 176 [pid 19969] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19967] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... openat resumed>) = 3 [pid 19970] <... write resumed>) = -1 EFAULT (Bad address) [pid 19969] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] ioctl(3, LOOP_CLR_FD [pid 19971] <... set_robust_list resumed>) = 0 [pid 19970] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19969] <... mprotect resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19970] <... futex resumed>) = 1 [pid 19969] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19967] <... futex resumed>) = 0 [pid 3606] close(3 [pid 19971] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19970] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19967] exit_group(0 [pid 3606] <... close resumed>) = 0 [pid 19971] <... prctl resumed>) = 0 [pid 19970] <... futex resumed>) = ? [pid 19969] <... clone resumed>, parent_tid=[19972], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19972 [pid 19967] <... exit_group resumed>) = ? [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19971] setpgid(0, 0 [pid 19970] +++ exited with 0 +++ [pid 19969] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19967] +++ exited with 0 +++ [pid 19971] <... setpgid resumed>) = 0 [pid 19969] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19973 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19967, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 19971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19969] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 19971] <... openat resumed>) = 3 ./strace-static-x86_64: Process 19972 attached [pid 19972] set_robust_list(0x7f61a3ef39e0, 24 [pid 19971] write(3, "1000", 4 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 19971] <... write resumed>) = 4 [pid 19972] <... set_robust_list resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 19972] mkdir("./file0", 0777 [pid 19971] close(3 [pid 3604] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 19973 attached [pid 19972] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19971] <... close resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19973] set_robust_list(0x555556ba76e0, 24 [pid 19972] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19971] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 19973] <... set_robust_list resumed>) = 0 [pid 19972] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19971] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 19973] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19972] <... futex resumed>) = 1 [pid 19971] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19969] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19973] <... prctl resumed>) = 0 [pid 19972] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19971] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19969] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19973] setpgid(0, 0 [pid 19972] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19973] <... setpgid resumed>) = 0 [pid 19972] pipe2( [pid 19969] <... futex resumed>) = 0 [pid 19971] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19972] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19969] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19974 [pid 19973] <... openat resumed>) = 3 [pid 19972] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19971] <... mprotect resumed>) = 0 [pid 19969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19973] write(3, "1000", 4 [pid 19972] <... futex resumed>) = 0 [pid 19969] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19971] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19973] <... write resumed>) = 4 [pid 19972] dup(4 [pid 19969] <... futex resumed>) = 0 [pid 19973] close(3 [pid 19972] <... dup resumed>) = 5 [pid 19969] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19973] <... close resumed>) = 0 [pid 19972] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19971] <... clone resumed>, parent_tid=[19975], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19975 [pid 19969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19973] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19972] <... futex resumed>) = 0 [pid 19971] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19969] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 19974 attached ./strace-static-x86_64: Process 19975 attached [pid 19973] <... futex resumed>) = 0 [pid 19972] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19971] <... futex resumed>) = 0 [pid 19969] <... futex resumed>) = 0 [pid 19975] set_robust_list(0x7f61a3ef39e0, 24 [pid 19974] set_robust_list(0x555556ba76e0, 24 [pid 19973] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19971] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19969] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19975] <... set_robust_list resumed>) = 0 [pid 19974] <... set_robust_list resumed>) = 0 [pid 19973] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19972] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19975] mkdir("./file0", 0777 [pid 19974] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19973] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19972] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19975] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19974] <... prctl resumed>) = 0 [pid 19973] <... mprotect resumed>) = 0 [pid 19972] <... futex resumed>) = 1 [pid 19969] <... futex resumed>) = 0 [pid 19975] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19974] setpgid(0, 0 [pid 19973] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19972] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19969] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 19976 attached [pid 19975] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19974] <... setpgid resumed>) = 0 [pid 19972] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19969] <... futex resumed>) = 0 [pid 19975] <... futex resumed>) = 1 [pid 19974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19973] <... clone resumed>, parent_tid=[19976], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19976 [pid 19972] write(5, NULL, 176 [pid 19971] <... futex resumed>) = 0 [pid 19969] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19975] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19974] <... openat resumed>) = 3 [pid 19973] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19972] <... write resumed>) = -1 EFAULT (Bad address) [pid 19971] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19976] set_robust_list(0x7f61a3ef39e0, 24 [pid 19975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19974] write(3, "1000", 4 [pid 19973] <... futex resumed>) = 0 [pid 19972] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19971] <... futex resumed>) = 0 [pid 19975] pipe2( [pid 19974] <... write resumed>) = 4 [pid 19973] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19972] <... futex resumed>) = 1 [pid 19971] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19969] <... futex resumed>) = 0 [pid 19976] <... set_robust_list resumed>) = 0 [pid 19975] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19974] close(3 [pid 19972] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19969] exit_group(0 [pid 19976] mkdir("./file0", 0777 [pid 19975] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19974] <... close resumed>) = 0 [pid 19972] <... futex resumed>) = ? [pid 19969] <... exit_group resumed>) = ? [pid 19976] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19975] <... futex resumed>) = 1 [pid 19974] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19972] +++ exited with 0 +++ [pid 19971] <... futex resumed>) = 0 [pid 19969] +++ exited with 0 +++ [pid 19976] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19975] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19974] <... futex resumed>) = 0 [pid 19971] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19969, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 19976] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19974] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19971] <... futex resumed>) = 0 [pid 19976] <... futex resumed>) = 1 [pid 19975] dup(4 [pid 19974] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19973] <... futex resumed>) = 0 [pid 19971] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19976] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19975] <... dup resumed>) = 5 [pid 19974] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19973] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19976] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19975] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19974] <... mprotect resumed>) = 0 [pid 19973] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 19976] pipe2( [pid 19975] <... futex resumed>) = 1 [pid 19974] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19973] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19971] <... futex resumed>) = 0 [pid 19976] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19975] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19971] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 19976] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19974] <... clone resumed>, parent_tid=[19977], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19977 [pid 19971] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 19976] <... futex resumed>) = 1 [pid 19975] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19974] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19973] <... futex resumed>) = 0 [pid 19971] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19976] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19974] <... futex resumed>) = 0 [pid 19973] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19976] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19974] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19973] <... futex resumed>) = 0 [pid 3601] close(3 [pid 19976] dup(4 [pid 19973] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19976] <... dup resumed>) = 5 [pid 3601] <... close resumed>) = 0 [pid 19976] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 19973] <... futex resumed>) = 0 [pid 19976] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19973] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19976] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19973] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19976] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19973] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 19978 attached [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19978 [pid 19978] set_robust_list(0x555556ba76e0, 24) = 0 [pid 19978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 19978] setpgid(0, 0) = 0 [pid 19978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 19977 attached [pid 19975] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19977] set_robust_list(0x7f61a3ef39e0, 24 [pid 19975] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19977] <... set_robust_list resumed>) = 0 [pid 19975] <... futex resumed>) = 1 [pid 19971] <... futex resumed>) = 0 [pid 19977] mkdir("./file0", 0777 [pid 19975] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19971] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19977] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19971] <... futex resumed>) = 0 [pid 19977] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19975] write(5, NULL, 176 [pid 19971] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19977] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19975] <... write resumed>) = -1 EFAULT (Bad address) [pid 19977] <... futex resumed>) = 1 [pid 19975] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19974] <... futex resumed>) = 0 [pid 19977] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19975] <... futex resumed>) = 1 [pid 19974] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19971] <... futex resumed>) = 0 [pid 19977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19975] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19974] <... futex resumed>) = 0 [pid 19971] exit_group(0 [pid 19977] pipe2( [pid 19975] <... futex resumed>) = ? [pid 19974] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19971] <... exit_group resumed>) = ? [pid 19978] <... openat resumed>) = 3 [pid 19977] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19975] +++ exited with 0 +++ [pid 19971] +++ exited with 0 +++ [pid 19978] write(3, "1000", 4 [pid 19977] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19976] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19978] <... write resumed>) = 4 [pid 19977] <... futex resumed>) = 1 [pid 19976] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19974] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19971, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 19978] close(3 [pid 19977] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19976] <... futex resumed>) = 1 [pid 19974] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19973] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 19978] <... close resumed>) = 0 [pid 19977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19976] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19974] <... futex resumed>) = 0 [pid 19973] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 19978] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19977] dup(4 [pid 19976] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19974] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19973] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 19978] <... futex resumed>) = 0 [pid 19977] <... dup resumed>) = 5 [pid 19976] write(5, NULL, 176 [pid 19973] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19978] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19977] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19976] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] close(3 [pid 19978] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19977] <... futex resumed>) = 1 [pid 19976] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19974] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 19977] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19974] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19974] <... futex resumed>) = 0 [pid 19977] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19974] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19979 [pid 19978] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19976] <... futex resumed>) = 1 [pid 19973] <... futex resumed>) = 0 ./strace-static-x86_64: Process 19979 attached [pid 19978] <... mprotect resumed>) = 0 [pid 19976] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19973] exit_group(0 [pid 19979] set_robust_list(0x555556ba76e0, 24 [pid 19978] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19977] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19976] <... futex resumed>) = ? [pid 19973] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 19980 attached [pid 19979] <... set_robust_list resumed>) = 0 [pid 19977] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19976] +++ exited with 0 +++ [pid 19980] set_robust_list(0x7f61a3ef39e0, 24 [pid 19979] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19978] <... clone resumed>, parent_tid=[19980], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19980 [pid 19977] <... futex resumed>) = 1 [pid 19974] <... futex resumed>) = 0 [pid 19973] +++ exited with 0 +++ [pid 19980] <... set_robust_list resumed>) = 0 [pid 19979] <... prctl resumed>) = 0 [pid 19978] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19977] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19974] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19978] <... futex resumed>) = 0 [pid 19977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19974] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19973, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 19978] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19977] write(5, NULL, 176 [pid 19974] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 19980] mkdir("./file0", 0777 [pid 19979] setpgid(0, 0 [pid 19977] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] <... restart_syscall resumed>) = 0 [pid 19977] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19980] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19979] <... setpgid resumed>) = 0 [pid 19977] <... futex resumed>) = 1 [pid 19974] <... futex resumed>) = 0 [pid 19980] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19980] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19977] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19974] exit_group(0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 19977] <... futex resumed>) = ? [pid 19974] <... exit_group resumed>) = ? [pid 3606] <... openat resumed>) = 3 [pid 19980] <... futex resumed>) = 1 [pid 19979] <... openat resumed>) = 3 [pid 19978] <... futex resumed>) = 0 [pid 19977] +++ exited with 0 +++ [pid 19974] +++ exited with 0 +++ [pid 3606] ioctl(3, LOOP_CLR_FD [pid 19980] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19979] write(3, "1000", 4 [pid 19978] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19974, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 19980] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19978] <... futex resumed>) = 0 [pid 3606] close(3 [pid 19979] <... write resumed>) = 4 [pid 19980] pipe2( [pid 19978] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... close resumed>) = 0 [pid 19980] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 19980] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19979] close(3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19980] <... futex resumed>) = 1 [pid 19978] <... futex resumed>) = 0 [pid 19979] <... close resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19981 [pid 3604] close(3 [pid 19980] dup(4 [pid 19979] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19978] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 19980] <... dup resumed>) = 5 [pid 19979] <... futex resumed>) = 0 [pid 19978] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 19981 attached [pid 19980] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19979] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19978] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 19982 attached [pid 19981] set_robust_list(0x555556ba76e0, 24 [pid 19980] <... futex resumed>) = 0 [pid 19979] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19978] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19982 [pid 19982] set_robust_list(0x555556ba76e0, 24 [pid 19981] <... set_robust_list resumed>) = 0 [pid 19980] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19979] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19978] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19982] <... set_robust_list resumed>) = 0 [pid 19980] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19979] <... mprotect resumed>) = 0 [pid 19978] <... futex resumed>) = 0 [pid 19982] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19981] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19980] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19979] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19978] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19981] <... prctl resumed>) = 0 [pid 19981] setpgid(0, 0) = 0 [pid 19979] <... clone resumed>, parent_tid=[19983], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19983 [pid 19981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 19979] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19981] write(3, "1000", 4) = 4 [pid 19981] close(3 [pid 19979] <... futex resumed>) = 0 ./strace-static-x86_64: Process 19983 attached [pid 19982] <... prctl resumed>) = 0 [pid 19981] <... close resumed>) = 0 [pid 19979] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19983] set_robust_list(0x7f61a3ef39e0, 24 [pid 19981] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19983] <... set_robust_list resumed>) = 0 [pid 19981] <... futex resumed>) = 0 [pid 19983] mkdir("./file0", 0777 [pid 19981] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19983] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19981] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19983] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19981] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19983] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19981] <... mprotect resumed>) = 0 [pid 19983] <... futex resumed>) = 1 [pid 19981] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19979] <... futex resumed>) = 0 ./strace-static-x86_64: Process 19984 attached [pid 19983] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19982] setpgid(0, 0 [pid 19980] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19979] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19983] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19982] <... setpgid resumed>) = 0 [pid 19981] <... clone resumed>, parent_tid=[19984], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19984 [pid 19980] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19979] <... futex resumed>) = 0 [pid 19983] pipe2( [pid 19982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19981] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19980] <... futex resumed>) = 1 [pid 19979] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19984] set_robust_list(0x7f61a3ef39e0, 24 [pid 19978] <... futex resumed>) = 0 [pid 19984] <... set_robust_list resumed>) = 0 [pid 19983] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19982] <... openat resumed>) = 3 [pid 19981] <... futex resumed>) = 0 [pid 19980] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19978] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19984] mkdir("./file0", 0777 [pid 19983] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19982] write(3, "1000", 4 [pid 19981] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19980] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19978] <... futex resumed>) = 0 [pid 19984] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19983] <... futex resumed>) = 1 [pid 19982] <... write resumed>) = 4 [pid 19980] write(5, NULL, 176 [pid 19979] <... futex resumed>) = 0 [pid 19978] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19984] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19983] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19982] close(3 [pid 19980] <... write resumed>) = -1 EFAULT (Bad address) [pid 19979] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19984] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19983] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19982] <... close resumed>) = 0 [pid 19980] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19979] <... futex resumed>) = 0 [pid 19984] <... futex resumed>) = 1 [pid 19983] dup(4 [pid 19982] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19981] <... futex resumed>) = 0 [pid 19980] <... futex resumed>) = 1 [pid 19979] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19978] <... futex resumed>) = 0 [pid 19984] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19983] <... dup resumed>) = 5 [pid 19982] <... futex resumed>) = 0 [pid 19981] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19980] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19978] exit_group(0 [pid 19984] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19983] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19982] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19981] <... futex resumed>) = 0 [pid 19980] <... futex resumed>) = ? [pid 19978] <... exit_group resumed>) = ? [pid 19984] pipe2( [pid 19983] <... futex resumed>) = 1 [pid 19982] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19981] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19980] +++ exited with 0 +++ [pid 19979] <... futex resumed>) = 0 [pid 19984] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19983] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19979] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19984] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19983] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19982] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19979] <... futex resumed>) = 0 [pid 19978] +++ exited with 0 +++ [pid 19984] <... futex resumed>) = 1 [pid 19983] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19982] <... mprotect resumed>) = 0 [pid 19981] <... futex resumed>) = 0 [pid 19979] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19978, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 19984] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19982] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19981] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19984] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19981] <... futex resumed>) = 0 [pid 19984] dup(4 [pid 19982] <... clone resumed>, parent_tid=[19985], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19985 [pid 19981] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 19985 attached [pid 19984] <... dup resumed>) = 5 [pid 19982] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19983] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19982] <... futex resumed>) = 0 [pid 19985] set_robust_list(0x7f61a3ef39e0, 24 [pid 19984] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19983] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19982] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19985] <... set_robust_list resumed>) = 0 [pid 19984] <... futex resumed>) = 1 [pid 19983] <... futex resumed>) = 1 [pid 19981] <... futex resumed>) = 0 [pid 19979] <... futex resumed>) = 0 [pid 19984] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19983] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19981] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19979] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19985] mkdir("./file0", 0777 [pid 19984] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19983] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19981] <... futex resumed>) = 0 [pid 19979] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 19985] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19984] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19983] write(5, NULL, 176 [pid 19981] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19979] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 19983] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 19983] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19983] <... futex resumed>) = 1 [pid 19979] <... futex resumed>) = 0 [pid 3601] close(3 [pid 19983] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3601] <... close resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19979] exit_group(0 [pid 19983] <... futex resumed>) = ? [pid 19979] <... exit_group resumed>) = ? [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19986 [pid 19983] +++ exited with 0 +++ ./strace-static-x86_64: Process 19986 attached [pid 19986] set_robust_list(0x555556ba76e0, 24) = 0 [pid 19979] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19979, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 19985] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3607] <... close resumed>) = 0 [pid 19986] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19984] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19984] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19984] <... futex resumed>) = 1 [pid 19981] <... futex resumed>) = 0 [pid 19985] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19984] write(5, NULL, 176 [pid 19981] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19987 [pid 19985] <... futex resumed>) = 1 [pid 19984] <... write resumed>) = -1 EFAULT (Bad address) [pid 19982] <... futex resumed>) = 0 [pid 19981] <... futex resumed>) = 0 [pid 19986] <... prctl resumed>) = 0 [pid 19985] pipe2( [pid 19984] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19982] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19981] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19986] setpgid(0, 0 [pid 19985] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19984] <... futex resumed>) = 0 [pid 19982] <... futex resumed>) = 0 [pid 19981] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19986] <... setpgid resumed>) = 0 [pid 19985] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19984] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19982] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19981] exit_group(0./strace-static-x86_64: Process 19987 attached [pid 19986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19985] <... futex resumed>) = 0 [pid 19984] <... futex resumed>) = ? [pid 19982] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19981] <... exit_group resumed>) = ? [pid 19986] <... openat resumed>) = 3 [pid 19985] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19984] +++ exited with 0 +++ [pid 19981] +++ exited with 0 +++ [pid 19982] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19986] write(3, "1000", 4 [pid 19985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19982] <... futex resumed>) = 0 [pid 19986] <... write resumed>) = 4 [pid 19985] dup(4 [pid 19982] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19981, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 19987] set_robust_list(0x555556ba76e0, 24 [pid 19986] close(3 [pid 19985] <... dup resumed>) = 5 [pid 19987] <... set_robust_list resumed>) = 0 [pid 19986] <... close resumed>) = 0 [pid 19985] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 19986] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19985] <... futex resumed>) = 1 [pid 19982] <... futex resumed>) = 0 [pid 19986] <... futex resumed>) = 0 [pid 19987] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19985] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19982] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... restart_syscall resumed>) = 0 [pid 19987] <... prctl resumed>) = 0 [pid 19986] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19982] <... futex resumed>) = 0 [pid 19987] setpgid(0, 0 [pid 19986] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19985] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19982] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19987] <... setpgid resumed>) = 0 [pid 19986] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 19987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19986] <... mprotect resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 19987] <... openat resumed>) = 3 [pid 19986] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 19988 attached [pid 19987] write(3, "1000", 4 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 19988] set_robust_list(0x7f61a3ef39e0, 24 [pid 19987] <... write resumed>) = 4 [pid 19986] <... clone resumed>, parent_tid=[19988], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19988 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19988] <... set_robust_list resumed>) = 0 [pid 19987] close(3 [pid 19986] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19985] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] close(3 [pid 19987] <... close resumed>) = 0 [pid 19986] <... futex resumed>) = 0 [pid 19985] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19986] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19985] <... futex resumed>) = 1 [pid 19982] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 19985] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19982] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19982] <... futex resumed>) = 0 [pid 19985] write(5, NULL, 176 [pid 19982] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19985] <... write resumed>) = -1 EFAULT (Bad address) [pid 19985] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 19982] <... futex resumed>) = 0 [pid 19985] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19982] exit_group(0 [pid 19985] <... futex resumed>) = ? [pid 19982] <... exit_group resumed>) = ? [pid 19985] +++ exited with 0 +++ [pid 19982] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19982, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19988] mkdir("./file0", 0777 [pid 19987] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19988] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19987] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19989 [pid 19988] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19988] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19987] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19988] <... futex resumed>) = 1 [pid 19987] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19986] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19990 [pid 19988] pipe2( [pid 19987] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19986] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 19990 attached ./strace-static-x86_64: Process 19989 attached [pid 19988] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19987] <... mprotect resumed>) = 0 [pid 19986] <... futex resumed>) = 0 [pid 19989] set_robust_list(0x555556ba76e0, 24 [pid 19988] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19987] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19986] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19989] <... set_robust_list resumed>) = 0 [pid 19988] <... futex resumed>) = 0 [pid 19986] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19989] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19988] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19987] <... clone resumed>, parent_tid=[19991], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19991 [pid 19986] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 19991 attached [pid 19990] set_robust_list(0x555556ba76e0, 24 [pid 19989] <... prctl resumed>) = 0 [pid 19988] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19986] <... futex resumed>) = 0 [pid 19989] setpgid(0, 0 [pid 19988] dup(4 [pid 19986] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19989] <... setpgid resumed>) = 0 [pid 19988] <... dup resumed>) = 5 [pid 19987] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19988] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19987] <... futex resumed>) = 0 [pid 19989] <... openat resumed>) = 3 [pid 19988] <... futex resumed>) = 1 [pid 19987] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19986] <... futex resumed>) = 0 [pid 19990] <... set_robust_list resumed>) = 0 [pid 19989] write(3, "1000", 4 [pid 19988] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19986] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19989] <... write resumed>) = 4 [pid 19988] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19986] <... futex resumed>) = 0 [pid 19989] close(3 [pid 19988] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19986] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19990] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19991] set_robust_list(0x7f61a3ef39e0, 24 [pid 19990] <... prctl resumed>) = 0 [pid 19989] <... close resumed>) = 0 [pid 19991] <... set_robust_list resumed>) = 0 [pid 19990] setpgid(0, 0 [pid 19989] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19991] mkdir("./file0", 0777 [pid 19990] <... setpgid resumed>) = 0 [pid 19991] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19991] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19990] <... openat resumed>) = 3 [pid 19991] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19990] write(3, "1000", 4 [pid 19991] <... futex resumed>) = 1 [pid 19990] <... write resumed>) = 4 [pid 19987] <... futex resumed>) = 0 [pid 19991] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19990] close(3 [pid 19987] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19991] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19990] <... close resumed>) = 0 [pid 19987] <... futex resumed>) = 0 [pid 19991] pipe2( [pid 19990] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19987] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19991] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19990] <... futex resumed>) = 0 [pid 19991] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19990] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19991] <... futex resumed>) = 1 [pid 19990] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19989] <... futex resumed>) = 0 [pid 19987] <... futex resumed>) = 0 [pid 19991] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19990] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19988] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19987] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19991] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19990] <... mprotect resumed>) = 0 [pid 19989] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19988] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19987] <... futex resumed>) = 0 [pid 19991] dup(4 [pid 19990] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19989] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19988] <... futex resumed>) = 1 [pid 19987] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19986] <... futex resumed>) = 0 ./strace-static-x86_64: Process 19992 attached [pid 19991] <... dup resumed>) = 5 [pid 19989] <... mprotect resumed>) = 0 [pid 19988] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19986] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19991] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19990] <... clone resumed>, parent_tid=[19992], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19992 [pid 19989] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19988] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19986] <... futex resumed>) = 0 [pid 19991] <... futex resumed>) = 1 [pid 19990] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19988] write(5, NULL, 176 [pid 19987] <... futex resumed>) = 0 [pid 19986] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19991] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19990] <... futex resumed>) = 0 [pid 19989] <... clone resumed>, parent_tid=[19993], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19993 [pid 19988] <... write resumed>) = -1 EFAULT (Bad address) [pid 19987] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19991] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19990] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19989] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19988] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19987] <... futex resumed>) = 0 [pid 19991] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19989] <... futex resumed>) = 0 [pid 19988] <... futex resumed>) = 1 [pid 19987] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19986] <... futex resumed>) = 0 ./strace-static-x86_64: Process 19993 attached [pid 19992] set_robust_list(0x7f61a3ef39e0, 24 [pid 19989] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19988] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19993] set_robust_list(0x7f61a3ef39e0, 24 [pid 19992] <... set_robust_list resumed>) = 0 [pid 19986] exit_group(0 [pid 19993] <... set_robust_list resumed>) = 0 [pid 19992] mkdir("./file0", 0777 [pid 19988] <... futex resumed>) = ? [pid 19986] <... exit_group resumed>) = ? [pid 19993] mkdir("./file0", 0777 [pid 19992] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19988] +++ exited with 0 +++ [pid 19993] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19992] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19993] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19992] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19993] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19992] <... futex resumed>) = 1 [pid 19990] <... futex resumed>) = 0 [pid 19986] +++ exited with 0 +++ [pid 19993] <... futex resumed>) = 1 [pid 19992] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19990] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19989] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19986, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 19993] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19992] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19990] <... futex resumed>) = 0 [pid 19989] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19993] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19992] pipe2( [pid 19991] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19990] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19989] <... futex resumed>) = 0 [pid 19993] pipe2( [pid 19992] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19991] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19989] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19993] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19992] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19991] <... futex resumed>) = 1 [pid 19987] <... futex resumed>) = 0 [pid 19993] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19992] <... futex resumed>) = 1 [pid 19991] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19990] <... futex resumed>) = 0 [pid 19987] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19993] <... futex resumed>) = 1 [pid 19992] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19991] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19990] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19989] <... futex resumed>) = 0 [pid 19987] <... futex resumed>) = 0 [pid 19993] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19992] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19991] write(5, NULL, 176 [pid 19990] <... futex resumed>) = 0 [pid 19989] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19987] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19993] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19992] dup(4 [pid 19991] <... write resumed>) = -1 EFAULT (Bad address) [pid 19990] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19989] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 19993] dup(4 [pid 19992] <... dup resumed>) = 5 [pid 19991] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19989] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19993] <... dup resumed>) = 5 [pid 19992] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19991] <... futex resumed>) = 1 [pid 19987] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 19993] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19992] <... futex resumed>) = 1 [pid 19991] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19990] <... futex resumed>) = 0 [pid 19987] exit_group(0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 19993] <... futex resumed>) = 1 [pid 19992] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19991] <... futex resumed>) = ? [pid 19990] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19989] <... futex resumed>) = 0 [pid 19987] <... exit_group resumed>) = ? [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19993] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19992] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19991] +++ exited with 0 +++ [pid 19990] <... futex resumed>) = 0 [pid 19989] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19987] +++ exited with 0 +++ [pid 3601] close(3 [pid 19993] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19992] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19990] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19989] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19987, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3601] <... close resumed>) = 0 [pid 19993] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19989] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19994 ./strace-static-x86_64: Process 19994 attached [pid 3607] <... openat resumed>) = 3 [pid 19994] set_robust_list(0x555556ba76e0, 24 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 19994] <... set_robust_list resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19994] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3607] close(3 [pid 19994] <... prctl resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 19994] setpgid(0, 0 [pid 19993] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19992] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19993] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19992] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19993] <... futex resumed>) = 1 [pid 19992] <... futex resumed>) = 1 [pid 19990] <... futex resumed>) = 0 [pid 19989] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19993] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19992] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19990] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19989] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19993] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19992] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19990] <... futex resumed>) = 0 [pid 19989] <... futex resumed>) = 0 [pid 19993] write(5, NULL, 176 [pid 19992] write(5, NULL, 176 [pid 19990] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19989] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19994] <... setpgid resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19995 [pid 19993] <... write resumed>) = -1 EFAULT (Bad address) [pid 19992] <... write resumed>) = -1 EFAULT (Bad address) [pid 19994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19993] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19992] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 19995 attached [pid 19994] <... openat resumed>) = 3 [pid 19993] <... futex resumed>) = 1 [pid 19992] <... futex resumed>) = 1 [pid 19990] <... futex resumed>) = 0 [pid 19989] <... futex resumed>) = 0 [pid 19995] set_robust_list(0x555556ba76e0, 24 [pid 19994] write(3, "1000", 4 [pid 19989] exit_group(0 [pid 19995] <... set_robust_list resumed>) = 0 [pid 19994] <... write resumed>) = 4 [pid 19989] <... exit_group resumed>) = ? [pid 19995] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19994] close(3 [pid 19995] <... prctl resumed>) = 0 [pid 19994] <... close resumed>) = 0 [pid 19995] setpgid(0, 0 [pid 19994] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19995] <... setpgid resumed>) = 0 [pid 19994] <... futex resumed>) = 0 [pid 19995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19994] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19995] <... openat resumed>) = 3 [pid 19994] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19992] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19990] exit_group(0 [pid 19995] write(3, "1000", 4 [pid 19994] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19995] <... write resumed>) = 4 [pid 19994] <... mprotect resumed>) = 0 [pid 19993] +++ exited with 0 +++ [pid 19992] <... futex resumed>) = ? [pid 19990] <... exit_group resumed>) = ? [pid 19989] +++ exited with 0 +++ [pid 19995] close(3 [pid 19994] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19992] +++ exited with 0 +++ ./strace-static-x86_64: Process 19996 attached [pid 19995] <... close resumed>) = 0 [pid 19990] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19989, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 19996] set_robust_list(0x7f61a3ef39e0, 24 [pid 19995] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19994] <... clone resumed>, parent_tid=[19996], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19996 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19990, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 19996] <... set_robust_list resumed>) = 0 [pid 19995] <... futex resumed>) = 0 [pid 19994] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... restart_syscall resumed>) = 0 [pid 19996] mkdir("./file0", 0777 [pid 19995] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19994] <... futex resumed>) = 0 [pid 19996] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19995] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19994] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 19996] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19995] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] <... openat resumed>) = 3 [pid 19995] <... mprotect resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 19996] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19995] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 3604] <... openat resumed>) = 3 [pid 19994] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 19998 ./strace-static-x86_64: Process 19997 attached [pid 19997] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 19997] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 19998 attached [pid 19998] set_robust_list(0x555556ba76e0, 24) = 0 [pid 19998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 19998] setpgid(0, 0) = 0 [pid 19998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19994] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 19995] <... clone resumed>, parent_tid=[19997], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 19997 [pid 19996] <... futex resumed>) = 1 [pid 19994] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19995] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 19997] <... futex resumed>) = 0 [pid 19996] pipe2( [pid 19995] <... futex resumed>) = 1 [pid 3604] close(3 [pid 19997] mkdir("./file0", 0777 [pid 19996] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19995] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... close resumed>) = 0 [pid 19997] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19996] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 19998] <... openat resumed>) = 3 [pid 19997] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19996] <... futex resumed>) = 1 [pid 19994] <... futex resumed>) = 0 [pid 19998] write(3, "1000", 4 [pid 19997] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19998] <... write resumed>) = 4 [pid 19997] <... futex resumed>) = 1 [pid 19998] close(3 [pid 19997] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19996] dup(4 [pid 19995] <... futex resumed>) = 0 [pid 19994] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19998] <... close resumed>) = 0 [pid 19996] <... dup resumed>) = 5 [pid 19995] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19994] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 19999 [pid 19998] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19997] <... futex resumed>) = 0 [pid 19996] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19995] <... futex resumed>) = 1 [pid 19994] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 19999 attached [pid 19998] <... futex resumed>) = 0 [pid 19997] pipe2( [pid 19996] <... futex resumed>) = 0 [pid 19995] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19994] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19999] set_robust_list(0x555556ba76e0, 24 [pid 19998] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19997] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19996] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19994] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19999] <... set_robust_list resumed>) = 0 [pid 19998] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19997] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19994] <... futex resumed>) = 0 [pid 19999] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 19998] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 19997] <... futex resumed>) = 1 [pid 19996] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19995] <... futex resumed>) = 0 [pid 19994] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19999] <... prctl resumed>) = 0 [pid 19998] <... mprotect resumed>) = 0 [pid 19997] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19995] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19999] setpgid(0, 0 [pid 19998] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 19997] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19995] <... futex resumed>) = 0 [pid 19999] <... setpgid resumed>) = 0 [pid 19997] dup(4 [pid 19995] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 19998] <... clone resumed>, parent_tid=[20000], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20000 [pid 19997] <... dup resumed>) = 5 [pid 19999] <... openat resumed>) = 3 [pid 19998] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19997] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19999] write(3, "1000", 4 [pid 19998] <... futex resumed>) = 0 [pid 19997] <... futex resumed>) = 0 [pid 19999] <... write resumed>) = 4 [pid 19998] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 19997] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19999] close(3) = 0 [pid 19999] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19995] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19999] <... futex resumed>) = 0 [pid 19995] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 19997] <... futex resumed>) = 0 [pid 19995] <... futex resumed>) = 1 [pid 19999] <... mmap resumed>) = 0x7f61a3ed3000 [pid 19997] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19995] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19999] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 19999] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20000 attached [pid 20000] set_robust_list(0x7f61a3ef39e0, 24 [pid 19999] <... clone resumed>, parent_tid=[20001], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20001 [pid 20000] <... set_robust_list resumed>) = 0 [pid 19999] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20000] mkdir("./file0", 0777 [pid 19999] <... futex resumed>) = 0 [pid 20000] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 19999] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20001 attached [pid 20000] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 19996] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20000] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 19998] <... futex resumed>) = 0 [pid 19996] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20000] pipe2( [pid 19998] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20000] <... pipe2 resumed>[3, 4], 0) = 0 [pid 19998] <... futex resumed>) = 0 [pid 19996] <... futex resumed>) = 1 [pid 19994] <... futex resumed>) = 0 [pid 20001] set_robust_list(0x7f61a3ef39e0, 24 [pid 20000] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19998] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19997] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19996] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19994] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20000] <... futex resumed>) = 0 [pid 19998] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19997] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19994] <... futex resumed>) = 0 [pid 20001] <... set_robust_list resumed>) = 0 [pid 20000] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19998] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19997] <... futex resumed>) = 1 [pid 19996] write(5, NULL, 176 [pid 19995] <... futex resumed>) = 0 [pid 19994] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20000] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19998] <... futex resumed>) = 0 [pid 19997] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19996] <... write resumed>) = -1 EFAULT (Bad address) [pid 19995] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20001] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20000] dup(4 [pid 19998] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19997] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19996] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19995] <... futex resumed>) = 0 [pid 20001] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20000] <... dup resumed>) = 5 [pid 19997] write(5, NULL, 176 [pid 19996] <... futex resumed>) = 1 [pid 19995] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19994] <... futex resumed>) = 0 [pid 20001] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20000] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19997] <... write resumed>) = -1 EFAULT (Bad address) [pid 19996] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19994] exit_group(0 [pid 20001] <... futex resumed>) = 1 [pid 20000] <... futex resumed>) = 1 [pid 19999] <... futex resumed>) = 0 [pid 19998] <... futex resumed>) = 0 [pid 19997] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19996] <... futex resumed>) = ? [pid 19994] <... exit_group resumed>) = ? [pid 20001] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20000] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19999] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19998] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19997] <... futex resumed>) = 1 [pid 19996] +++ exited with 0 +++ [pid 19995] <... futex resumed>) = 0 [pid 20000] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19999] <... futex resumed>) = 0 [pid 19998] <... futex resumed>) = 0 [pid 19997] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20000] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 19999] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19998] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 19994] +++ exited with 0 +++ [pid 19995] exit_group(0 [pid 20001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19997] <... futex resumed>) = ? [pid 19995] <... exit_group resumed>) = ? [pid 20001] pipe2( [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19994, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20001] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20001] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20001] <... futex resumed>) = 1 [pid 19999] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20001] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19999] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19997] +++ exited with 0 +++ [pid 19995] +++ exited with 0 +++ [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19999] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19995, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] close(3 [pid 20001] dup(4 [pid 20000] <... mount resumed>) = -1 EFAULT (Bad address) [pid 19999] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... close resumed>) = 0 [pid 20001] <... dup resumed>) = 5 [pid 20000] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20001] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20000] <... futex resumed>) = 1 [pid 19998] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20000] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19998] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20001] <... futex resumed>) = 1 [pid 20000] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19998] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 19999] <... futex resumed>) = 0 [pid 20001] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20000] write(5, NULL, 176 [pid 19999] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 19998] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20002 [pid 20001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20000] <... write resumed>) = -1 EFAULT (Bad address) [pid 19999] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20001] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20000] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 19999] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] close(3./strace-static-x86_64: Process 20002 attached [pid 20000] <... futex resumed>) = 1 [pid 19998] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20002] set_robust_list(0x555556ba76e0, 24 [pid 20000] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19998] exit_group(0 [pid 20002] <... set_robust_list resumed>) = 0 [pid 20000] <... futex resumed>) = ? [pid 19998] <... exit_group resumed>) = ? [pid 20002] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20000] +++ exited with 0 +++ [pid 19998] +++ exited with 0 +++ [pid 20002] <... prctl resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19998, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20002] setpgid(0, 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20002] <... setpgid resumed>) = 0 [pid 20002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3606] <... restart_syscall resumed>) = 0 [pid 20002] <... openat resumed>) = 3 [pid 20002] write(3, "1000", 4) = 4 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20002] close(3 [pid 3606] <... openat resumed>) = 3 [pid 20002] <... close resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20002] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20002] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20002] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] <... close resumed>) = 0 [pid 20002] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20002] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20002] <... mprotect resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20003 [pid 20002] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20004], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20004 [pid 20002] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20002] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20003 attached [pid 20003] set_robust_list(0x555556ba76e0, 24) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20005 [pid 20003] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 20004 attached [pid 20004] set_robust_list(0x7f61a3ef39e0, 24 [pid 20003] <... prctl resumed>) = 0 [pid 20004] <... set_robust_list resumed>) = 0 [pid 20003] setpgid(0, 0 [pid 20004] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20003] <... setpgid resumed>) = 0 [pid 20004] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20004] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20003] <... openat resumed>) = 3 [pid 20004] <... futex resumed>) = 1 [pid 20003] write(3, "1000", 4 [pid 20002] <... futex resumed>) = 0 [pid 20004] pipe2( [pid 20003] <... write resumed>) = 4 [pid 20002] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20004] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20003] close(3 [pid 20002] <... futex resumed>) = 0 [pid 20004] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20003] <... close resumed>) = 0 [pid 20002] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20004] <... futex resumed>) = 0 [pid 20003] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20002] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20004] dup(4 [pid 20003] <... futex resumed>) = 0 [pid 20002] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20004] <... dup resumed>) = 5 [pid 20003] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20002] <... futex resumed>) = 0 [pid 20001] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20004] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20003] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20002] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20001] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20004] <... futex resumed>) = 0 [pid 20003] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20002] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20001] <... futex resumed>) = 1 [pid 19999] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20005 attached [pid 20004] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20003] <... mprotect resumed>) = 0 [pid 20002] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20001] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19999] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20004] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20003] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20002] <... futex resumed>) = 0 [pid 20001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 19999] <... futex resumed>) = 0 [pid 20005] set_robust_list(0x555556ba76e0, 24 [pid 20004] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20002] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20001] write(5, NULL, 176 [pid 19999] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20006 attached [pid 20005] <... set_robust_list resumed>) = 0 [pid 20003] <... clone resumed>, parent_tid=[20006], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20006 [pid 20001] <... write resumed>) = -1 EFAULT (Bad address) [pid 20006] set_robust_list(0x7f61a3ef39e0, 24 [pid 20005] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20001] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20006] <... set_robust_list resumed>) = 0 [pid 20005] <... prctl resumed>) = 0 [pid 20001] <... futex resumed>) = 1 [pid 19999] <... futex resumed>) = 0 [pid 20006] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20005] setpgid(0, 0 [pid 20001] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 19999] exit_group(0 [pid 20005] <... setpgid resumed>) = 0 [pid 20003] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20001] <... futex resumed>) = ? [pid 19999] <... exit_group resumed>) = ? [pid 20006] <... futex resumed>) = 0 [pid 20005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20003] <... futex resumed>) = 1 [pid 20001] +++ exited with 0 +++ [pid 19999] +++ exited with 0 +++ [pid 20006] mkdir("./file0", 0777 [pid 20005] <... openat resumed>) = 3 [pid 20004] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20003] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20006] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20005] write(3, "1000", 4 [pid 20004] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=19999, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20006] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20005] <... write resumed>) = 4 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20006] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20005] close(3 [pid 3604] <... openat resumed>) = 3 [pid 20006] <... futex resumed>) = 1 [pid 20005] <... close resumed>) = 0 [pid 20004] <... futex resumed>) = 1 [pid 20003] <... futex resumed>) = 0 [pid 20002] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20006] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20005] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20004] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20003] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20002] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20006] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20005] <... futex resumed>) = 0 [pid 20004] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20003] <... futex resumed>) = 0 [pid 20002] <... futex resumed>) = 0 [pid 3604] close(3 [pid 20006] pipe2( [pid 20005] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20004] write(5, NULL, 176 [pid 20003] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20002] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... close resumed>) = 0 [pid 20006] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20005] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20004] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20006] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20005] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20004] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20002] <... futex resumed>) = 0 [pid 20006] <... futex resumed>) = 1 [pid 20005] <... mprotect resumed>) = 0 [pid 20004] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20003] <... futex resumed>) = 0 [pid 20002] exit_group(0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20007 ./strace-static-x86_64: Process 20007 attached [pid 20006] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20005] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20004] <... futex resumed>) = ? [pid 20003] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20002] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20008 attached [pid 20007] set_robust_list(0x555556ba76e0, 24 [pid 20006] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20004] +++ exited with 0 +++ [pid 20003] <... futex resumed>) = 0 [pid 20008] set_robust_list(0x7f61a3ef39e0, 24 [pid 20007] <... set_robust_list resumed>) = 0 [pid 20006] dup(4 [pid 20005] <... clone resumed>, parent_tid=[20008], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20008 [pid 20003] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20002] +++ exited with 0 +++ [pid 20007] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20006] <... dup resumed>) = 5 [pid 20005] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20002, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20007] <... prctl resumed>) = 0 [pid 20006] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20005] <... futex resumed>) = 0 [pid 20006] <... futex resumed>) = 1 [pid 20005] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20003] <... futex resumed>) = 0 [pid 20007] setpgid(0, 0 [pid 20006] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20003] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20006] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20003] <... futex resumed>) = 0 [pid 20007] <... setpgid resumed>) = 0 [pid 20006] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20003] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20008] <... set_robust_list resumed>) = 0 [pid 20008] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20008] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20008] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20005] <... futex resumed>) = 0 [pid 20008] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20005] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20008] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20008] pipe2([3, 4], 0) = 0 [pid 20007] <... openat resumed>) = 3 [pid 20005] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20007] write(3, "1000", 4 [pid 20005] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 20007] <... write resumed>) = 4 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20007] close(3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20007] <... close resumed>) = 0 [pid 3601] close(3 [pid 20007] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20007] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20007] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20008] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20009 [pid 20007] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 20009 attached [pid 20008] <... futex resumed>) = 1 [pid 20007] <... mprotect resumed>) = 0 [pid 20006] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20005] <... futex resumed>) = 0 [pid 20009] set_robust_list(0x555556ba76e0, 24 [pid 20008] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20007] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20006] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20005] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20009] <... set_robust_list resumed>) = 0 [pid 20008] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20006] <... futex resumed>) = 1 [pid 20005] <... futex resumed>) = 0 [pid 20003] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20010 attached [pid 20009] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20008] dup(4 [pid 20007] <... clone resumed>, parent_tid=[20010], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20010 [pid 20006] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20005] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20003] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20009] <... prctl resumed>) = 0 [pid 20008] <... dup resumed>) = 5 [pid 20007] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20010] set_robust_list(0x7f61a3ef39e0, 24 [pid 20006] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20003] <... futex resumed>) = 0 [pid 20009] setpgid(0, 0 [pid 20008] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20007] <... futex resumed>) = 0 [pid 20006] write(5, NULL, 176 [pid 20010] <... set_robust_list resumed>) = 0 [pid 20003] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20009] <... setpgid resumed>) = 0 [pid 20008] <... futex resumed>) = 1 [pid 20007] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20006] <... write resumed>) = -1 EFAULT (Bad address) [pid 20005] <... futex resumed>) = 0 [pid 20010] mkdir("./file0", 0777 [pid 20009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20008] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20010] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20006] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20005] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20009] <... openat resumed>) = 3 [pid 20008] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20010] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20006] <... futex resumed>) = 1 [pid 20005] <... futex resumed>) = 0 [pid 20003] <... futex resumed>) = 0 [pid 20010] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20009] write(3, "1000", 4 [pid 20008] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20006] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20005] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20003] exit_group(0 [pid 20010] <... futex resumed>) = 1 [pid 20009] <... write resumed>) = 4 [pid 20007] <... futex resumed>) = 0 [pid 20003] <... exit_group resumed>) = ? [pid 20010] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20009] close(3 [pid 20007] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20006] <... futex resumed>) = ? [pid 20010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20007] <... futex resumed>) = 0 [pid 20010] pipe2( [pid 20007] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20010] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20009] <... close resumed>) = 0 [pid 20006] +++ exited with 0 +++ [pid 20003] +++ exited with 0 +++ [pid 20010] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20009] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20010] <... futex resumed>) = 1 [pid 20009] <... futex resumed>) = 0 [pid 20007] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20003, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20010] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20007] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20009] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20007] <... futex resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20010] dup(4 [pid 20009] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20007] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20010] <... dup resumed>) = 5 [pid 20009] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] <... restart_syscall resumed>) = 0 [pid 20010] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20007] <... futex resumed>) = 0 [pid 20010] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20007] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20007] <... futex resumed>) = 0 [pid 20010] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20007] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20009] <... mprotect resumed>) = 0 [pid 20009] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20009] <... clone resumed>, parent_tid=[20011], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20011 [pid 3606] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20011 attached [pid 20009] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20009] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20009] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] close(3) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20011] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20011] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20011] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20011] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20012 [pid 20011] <... futex resumed>) = 1 [pid 20009] <... futex resumed>) = 0 [pid 20011] pipe2( [pid 20009] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20011] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20009] <... futex resumed>) = 0 [pid 20011] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20009] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20008] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20011] <... futex resumed>) = 0 [pid 20009] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20008] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20012 attached [pid 20011] dup(4 [pid 20009] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20008] <... futex resumed>) = 1 [pid 20005] <... futex resumed>) = 0 [pid 20012] set_robust_list(0x555556ba76e0, 24 [pid 20011] <... dup resumed>) = 5 [pid 20009] <... futex resumed>) = 0 [pid 20008] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20005] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20012] <... set_robust_list resumed>) = 0 [pid 20011] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20010] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20009] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20008] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20005] <... futex resumed>) = 0 [pid 20012] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20011] <... futex resumed>) = 0 [pid 20010] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20009] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20008] write(5, NULL, 176 [pid 20005] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20012] <... prctl resumed>) = 0 [pid 20011] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20010] <... futex resumed>) = 1 [pid 20009] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20008] <... write resumed>) = -1 EFAULT (Bad address) [pid 20007] <... futex resumed>) = 0 [pid 20012] setpgid(0, 0 [pid 20011] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20010] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20009] <... futex resumed>) = 0 [pid 20008] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20007] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20012] <... setpgid resumed>) = 0 [pid 20011] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20009] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20008] <... futex resumed>) = 1 [pid 20007] <... futex resumed>) = 0 [pid 20005] <... futex resumed>) = 0 [pid 20012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20010] write(5, NULL, 176 [pid 20008] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20007] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20005] exit_group(0 [pid 20012] <... openat resumed>) = 3 [pid 20011] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20010] <... write resumed>) = -1 EFAULT (Bad address) [pid 20008] <... futex resumed>) = ? [pid 20005] <... exit_group resumed>) = ? [pid 20012] write(3, "1000", 4 [pid 20011] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20010] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20008] +++ exited with 0 +++ [pid 20012] <... write resumed>) = 4 [pid 20011] <... futex resumed>) = 1 [pid 20010] <... futex resumed>) = 1 [pid 20007] <... futex resumed>) = 0 [pid 20012] close(3 [pid 20011] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20010] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20009] <... futex resumed>) = 0 [pid 20007] exit_group(0 [pid 20005] +++ exited with 0 +++ [pid 20012] <... close resumed>) = 0 [pid 20010] <... futex resumed>) = ? [pid 20009] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20007] <... exit_group resumed>) = ? [pid 20012] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20011] <... futex resumed>) = 0 [pid 20010] +++ exited with 0 +++ [pid 20009] <... futex resumed>) = 1 [pid 20007] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20005, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20012] <... futex resumed>) = 0 [pid 20011] write(5, NULL, 176 [pid 20009] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20007, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20012] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20011] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] <... restart_syscall resumed>) = 0 [pid 20012] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20011] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20012] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20011] <... futex resumed>) = 1 [pid 20009] <... futex resumed>) = 0 [pid 20012] <... mprotect resumed>) = 0 [pid 20011] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20012] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20009] exit_group(0 [pid 3607] <... openat resumed>) = 3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20011] <... futex resumed>) = ? [pid 20009] <... exit_group resumed>) = ? [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] <... openat resumed>) = 3 [pid 20012] <... clone resumed>, parent_tid=[20013], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20013 [pid 20011] +++ exited with 0 +++ [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20012] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3./strace-static-x86_64: Process 20013 attached [pid 20012] <... futex resumed>) = 0 [pid 20009] +++ exited with 0 +++ [pid 3607] <... close resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20013] set_robust_list(0x7f61a3ef39e0, 24 [pid 20012] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20009, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20013] <... set_robust_list resumed>) = 0 [pid 3604] close(3 [pid 20013] mkdir("./file0", 0777 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20014 [pid 3604] <... close resumed>) = 0 [pid 20013] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20013] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 20015 attached ./strace-static-x86_64: Process 20014 attached [pid 20013] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20015] set_robust_list(0x555556ba76e0, 24 [pid 20014] set_robust_list(0x555556ba76e0, 24 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20015] <... set_robust_list resumed>) = 0 [pid 20014] <... set_robust_list resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20015] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20014] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3601] close(3 [pid 20015] <... prctl resumed>) = 0 [pid 20014] <... prctl resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20015] setpgid(0, 0 [pid 20014] setpgid(0, 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20016 attached [pid 20015] <... setpgid resumed>) = 0 [pid 20014] <... setpgid resumed>) = 0 [pid 20013] <... futex resumed>) = 1 [pid 20012] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20015 [pid 20015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20013] pipe2( [pid 20012] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20016 [pid 20016] set_robust_list(0x555556ba76e0, 24 [pid 20015] <... openat resumed>) = 3 [pid 20014] <... openat resumed>) = 3 [pid 20013] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20012] <... futex resumed>) = 0 [pid 20015] write(3, "1000", 4 [pid 20014] write(3, "1000", 4 [pid 20013] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20012] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20015] <... write resumed>) = 4 [pid 20014] <... write resumed>) = 4 [pid 20013] <... futex resumed>) = 0 [pid 20012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20015] close(3 [pid 20014] close(3 [pid 20013] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20012] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20015] <... close resumed>) = 0 [pid 20014] <... close resumed>) = 0 [pid 20015] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20014] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20013] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20012] <... futex resumed>) = 0 [pid 20016] <... set_robust_list resumed>) = 0 [pid 20015] <... futex resumed>) = 0 [pid 20014] <... futex resumed>) = 0 [pid 20013] dup(4 [pid 20015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20014] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20013] <... dup resumed>) = 5 [pid 20012] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20016] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20015] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20014] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20013] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20015] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20014] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20013] <... futex resumed>) = 0 [pid 20016] setpgid(0, 0 [pid 20012] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20015] <... mprotect resumed>) = 0 [pid 20016] <... setpgid resumed>) = 0 [pid 20014] <... mprotect resumed>) = 0 [pid 20013] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20012] <... futex resumed>) = 0 [pid 20015] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20014] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20012] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20015] <... clone resumed>, parent_tid=[20017], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20017 [pid 20014] <... clone resumed>, parent_tid=[20018], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20018 [pid 20015] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20014] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20015] <... futex resumed>) = 0 [pid 20014] <... futex resumed>) = 0 [pid 20015] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20014] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20017 attached [pid 20017] set_robust_list(0x7f61a3ef39e0, 24./strace-static-x86_64: Process 20018 attached ) = 0 [pid 20018] set_robust_list(0x7f61a3ef39e0, 24 [pid 20017] mkdir("./file0", 0777 [pid 20018] <... set_robust_list resumed>) = 0 [pid 20017] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20018] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20017] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20018] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20017] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20018] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20017] <... futex resumed>) = 1 [pid 20015] <... futex resumed>) = 0 [pid 20018] <... futex resumed>) = 1 [pid 20017] pipe2( [pid 20015] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20014] <... futex resumed>) = 0 [pid 20018] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20017] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20015] <... futex resumed>) = 0 [pid 20014] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20017] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20015] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20014] <... futex resumed>) = 0 [pid 20018] pipe2( [pid 20017] <... futex resumed>) = 0 [pid 20015] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20014] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20018] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20017] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20015] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20018] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20017] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20015] <... futex resumed>) = 0 [pid 20018] <... futex resumed>) = 1 [pid 20017] dup(4 [pid 20016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20015] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20014] <... futex resumed>) = 0 [pid 20018] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20017] <... dup resumed>) = 5 [pid 20016] <... openat resumed>) = 3 [pid 20014] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20013] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20017] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20016] write(3, "1000", 4 [pid 20014] <... futex resumed>) = 0 [pid 20013] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20018] dup(4 [pid 20017] <... futex resumed>) = 1 [pid 20016] <... write resumed>) = 4 [pid 20015] <... futex resumed>) = 0 [pid 20014] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20013] <... futex resumed>) = 1 [pid 20012] <... futex resumed>) = 0 [pid 20018] <... dup resumed>) = 5 [pid 20017] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20016] close(3 [pid 20015] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20013] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20012] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20018] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20017] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20016] <... close resumed>) = 0 [pid 20015] <... futex resumed>) = 0 [pid 20013] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20012] <... futex resumed>) = 0 [pid 20018] <... futex resumed>) = 1 [pid 20017] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20016] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20015] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20014] <... futex resumed>) = 0 [pid 20013] write(5, NULL, 176 [pid 20012] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20018] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20016] <... futex resumed>) = 0 [pid 20014] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20013] <... write resumed>) = -1 EFAULT (Bad address) [pid 20018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20016] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20014] <... futex resumed>) = 0 [pid 20013] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20018] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20016] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20014] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20013] <... futex resumed>) = 1 [pid 20012] <... futex resumed>) = 0 [pid 20016] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20013] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20012] exit_group(0 [pid 20016] <... mprotect resumed>) = 0 [pid 20013] <... futex resumed>) = ? [pid 20012] <... exit_group resumed>) = ? [pid 20017] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20016] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20013] +++ exited with 0 +++ [pid 20012] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20012, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20017] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20016] <... clone resumed>, parent_tid=[20019], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20019 ./strace-static-x86_64: Process 20019 attached [pid 20018] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20017] <... futex resumed>) = 1 [pid 20016] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20015] <... futex resumed>) = 0 [pid 20019] set_robust_list(0x7f61a3ef39e0, 24 [pid 20018] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20017] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20016] <... futex resumed>) = 0 [pid 20015] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20019] <... set_robust_list resumed>) = 0 [pid 20018] <... futex resumed>) = 1 [pid 20017] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20016] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20015] <... futex resumed>) = 0 [pid 20014] <... futex resumed>) = 0 [pid 20019] mkdir("./file0", 0777 [pid 20018] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20017] write(5, NULL, 176 [pid 20015] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20014] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 20019] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20017] <... write resumed>) = -1 EFAULT (Bad address) [pid 20014] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20019] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20018] write(5, NULL, 176 [pid 20017] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20014] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20019] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20018] <... write resumed>) = -1 EFAULT (Bad address) [pid 20017] <... futex resumed>) = 1 [pid 20015] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20019] <... futex resumed>) = 1 [pid 20018] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20017] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20016] <... futex resumed>) = 0 [pid 20015] exit_group(0 [pid 3606] close(3 [pid 20019] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20018] <... futex resumed>) = 1 [pid 20017] <... futex resumed>) = ? [pid 20016] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20015] <... exit_group resumed>) = ? [pid 20014] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20016] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20016] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20020 ./strace-static-x86_64: Process 20020 attached [pid 20020] set_robust_list(0x555556ba76e0, 24 [pid 20018] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20017] +++ exited with 0 +++ [pid 20015] +++ exited with 0 +++ [pid 20014] exit_group(0 [pid 20019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20018] <... futex resumed>) = ? [pid 20014] <... exit_group resumed>) = ? [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20015, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20019] pipe2( [pid 20018] +++ exited with 0 +++ [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20019] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20014] +++ exited with 0 +++ [pid 3604] <... restart_syscall resumed>) = 0 [pid 20020] <... set_robust_list resumed>) = 0 [pid 20019] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20014, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20020] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20020] setpgid(0, 0 [pid 3604] <... openat resumed>) = 3 [pid 20020] <... setpgid resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20020] <... openat resumed>) = 3 [pid 20019] <... futex resumed>) = 1 [pid 20016] <... futex resumed>) = 0 [pid 3604] close(3 [pid 20020] write(3, "1000", 4 [pid 20019] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20016] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 20019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20020] <... write resumed>) = 4 [pid 20016] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20020] close(3 [pid 20019] dup(4 [pid 20016] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20019] <... dup resumed>) = 5 [pid 20020] <... close resumed>) = 0 [pid 20019] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20016] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20020] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20021 [pid 20020] <... futex resumed>) = 0 [pid 20019] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20016] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20020] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20016] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20021 attached [pid 20020] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20019] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20016] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20021] set_robust_list(0x555556ba76e0, 24 [pid 20020] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20021] <... set_robust_list resumed>) = 0 [pid 20020] <... mprotect resumed>) = 0 [pid 3607] close(3 [pid 20021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20020] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20021] <... prctl resumed>) = 0 [pid 20021] setpgid(0, 0 [pid 20020] <... clone resumed>, parent_tid=[20022], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20022 [pid 3607] <... close resumed>) = 0 [pid 20021] <... setpgid resumed>) = 0 [pid 20020] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20020] <... futex resumed>) = 0 [pid 20021] <... openat resumed>) = 3 [pid 20020] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20021] write(3, "1000", 4) = 4 [pid 20021] close(3) = 0 [pid 20021] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20021] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20021] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20023 [pid 20021] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20024], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20024 [pid 20021] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20019] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20021] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20019] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20016] <... futex resumed>) = 0 [pid 20019] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20016] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20023 attached ./strace-static-x86_64: Process 20022 attached [pid 20019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20016] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20024 attached [pid 20023] set_robust_list(0x555556ba76e0, 24 [pid 20022] set_robust_list(0x7f61a3ef39e0, 24 [pid 20019] write(5, NULL, 176 [pid 20016] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20024] set_robust_list(0x7f61a3ef39e0, 24 [pid 20023] <... set_robust_list resumed>) = 0 [pid 20022] <... set_robust_list resumed>) = 0 [pid 20019] <... write resumed>) = -1 EFAULT (Bad address) [pid 20024] <... set_robust_list resumed>) = 0 [pid 20019] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20024] mkdir("./file0", 0777 [pid 20023] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20022] mkdir("./file0", 0777 [pid 20019] <... futex resumed>) = 1 [pid 20016] <... futex resumed>) = 0 [pid 20024] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20024] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20024] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20021] <... futex resumed>) = 0 [pid 20024] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20021] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20024] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20023] <... prctl resumed>) = 0 [pid 20022] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20021] <... futex resumed>) = 0 [pid 20019] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20016] exit_group(0 [pid 20024] pipe2( [pid 20023] setpgid(0, 0 [pid 20022] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20021] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20019] <... futex resumed>) = ? [pid 20016] <... exit_group resumed>) = ? [pid 20024] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20023] <... setpgid resumed>) = 0 [pid 20022] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20019] +++ exited with 0 +++ [pid 20024] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20022] <... futex resumed>) = 1 [pid 20020] <... futex resumed>) = 0 [pid 20016] +++ exited with 0 +++ [pid 20024] <... futex resumed>) = 1 [pid 20023] <... openat resumed>) = 3 [pid 20022] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20021] <... futex resumed>) = 0 [pid 20020] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20024] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20023] write(3, "1000", 4 [pid 20022] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20021] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20020] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20016, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20024] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20023] <... write resumed>) = 4 [pid 20022] pipe2( [pid 20021] <... futex resumed>) = 0 [pid 20020] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20024] dup(4 [pid 20023] close(3 [pid 20022] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20021] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20024] <... dup resumed>) = 5 [pid 20023] <... close resumed>) = 0 [pid 20022] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20024] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20023] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20022] <... futex resumed>) = 1 [pid 20020] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20024] <... futex resumed>) = 1 [pid 20023] <... futex resumed>) = 0 [pid 20022] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20021] <... futex resumed>) = 0 [pid 20020] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20024] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20023] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20022] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20021] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20020] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20024] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20023] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20022] dup(4 [pid 20021] <... futex resumed>) = 0 [pid 20020] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20024] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20023] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20022] <... dup resumed>) = 5 [pid 20021] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20023] <... mprotect resumed>) = 0 [pid 20022] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20023] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20022] <... futex resumed>) = 1 [pid 20020] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20022] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20020] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20023] <... clone resumed>, parent_tid=[20025], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20025 [pid 20022] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20020] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20025 attached [pid 20023] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20022] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20020] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20026 attached [pid 20025] set_robust_list(0x7f61a3ef39e0, 24 [pid 20024] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20023] <... futex resumed>) = 0 [pid 20025] <... set_robust_list resumed>) = 0 [pid 20024] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20023] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20026 [pid 20025] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20024] <... futex resumed>) = 1 [pid 20021] <... futex resumed>) = 0 [pid 20025] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20024] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20021] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20025] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20024] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20021] <... futex resumed>) = 0 [pid 20025] <... futex resumed>) = 1 [pid 20021] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20025] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20026] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20023] <... futex resumed>) = 0 [pid 20024] write(5, NULL, 176 [pid 20023] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20024] <... write resumed>) = -1 EFAULT (Bad address) [pid 20026] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20025] <... futex resumed>) = 0 [pid 20024] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20023] <... futex resumed>) = 1 [pid 20022] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20025] pipe2( [pid 20024] <... futex resumed>) = 1 [pid 20023] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20022] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20021] <... futex resumed>) = 0 [pid 20025] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20024] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20022] <... futex resumed>) = 1 [pid 20021] exit_group(0 [pid 20020] <... futex resumed>) = 0 [pid 20026] <... prctl resumed>) = 0 [pid 20025] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20024] <... futex resumed>) = ? [pid 20022] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20021] <... exit_group resumed>) = ? [pid 20020] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20026] setpgid(0, 0 [pid 20025] <... futex resumed>) = 1 [pid 20024] +++ exited with 0 +++ [pid 20023] <... futex resumed>) = 0 [pid 20022] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20020] <... futex resumed>) = 0 [pid 20023] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20022] write(5, NULL, 176 [pid 20020] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20023] <... futex resumed>) = 0 [pid 20022] <... write resumed>) = -1 EFAULT (Bad address) [pid 20026] <... setpgid resumed>) = 0 [pid 20025] dup(4 [pid 20023] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20022] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20021] +++ exited with 0 +++ [pid 20025] <... dup resumed>) = 5 [pid 20022] <... futex resumed>) = 1 [pid 20020] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20021, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20025] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20022] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20020] exit_group(0 [pid 20025] <... futex resumed>) = 1 [pid 20023] <... futex resumed>) = 0 [pid 20022] <... futex resumed>) = ? [pid 20020] <... exit_group resumed>) = ? [pid 20026] <... openat resumed>) = 3 [pid 20025] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20023] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20022] +++ exited with 0 +++ [pid 20026] write(3, "1000", 4 [pid 20025] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20023] <... futex resumed>) = 0 [pid 20020] +++ exited with 0 +++ [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20026] <... write resumed>) = 4 [pid 20025] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20023] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20020, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20026] close(3 [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20026] <... close resumed>) = 0 [pid 20026] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20026] <... futex resumed>) = 0 [pid 20026] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] close(3 [pid 20026] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20026] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] <... openat resumed>) = 3 [pid 3604] <... close resumed>) = 0 [pid 20026] <... mprotect resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20026] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20026] <... clone resumed>, parent_tid=[20027], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20027 [pid 20026] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20028 ./strace-static-x86_64: Process 20028 attached ./strace-static-x86_64: Process 20027 attached [pid 20026] <... futex resumed>) = 0 [pid 20025] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] <... close resumed>) = 0 [pid 20028] set_robust_list(0x555556ba76e0, 24 [pid 20027] set_robust_list(0x7f61a3ef39e0, 24 [pid 20025] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20028] <... set_robust_list resumed>) = 0 [pid 20027] <... set_robust_list resumed>) = 0 [pid 20025] <... futex resumed>) = 1 [pid 20028] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20027] mkdir("./file0", 0777 [pid 20025] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20029 [pid 20028] <... prctl resumed>) = 0 [pid 20027] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20028] setpgid(0, 0 [pid 20027] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20028] <... setpgid resumed>) = 0 [pid 20027] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20027] <... futex resumed>) = 0 [pid 20028] <... openat resumed>) = 3 [pid 20027] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20026] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20023] <... futex resumed>) = 0 [pid 20028] write(3, "1000", 4 [pid 20026] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20023] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20028] <... write resumed>) = 4 [pid 20026] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20025] <... futex resumed>) = 0 [pid 20023] <... futex resumed>) = 1 [pid 20028] close(3 [pid 20027] <... futex resumed>) = 0 [pid 20026] <... futex resumed>) = 1 [pid 20025] write(5, NULL, 176 [pid 20023] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20028] <... close resumed>) = 0 [pid 20027] pipe2( [pid 20026] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20025] <... write resumed>) = -1 EFAULT (Bad address) [pid 20028] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20027] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20025] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20028] <... futex resumed>) = 0 [pid 20027] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20025] <... futex resumed>) = 1 [pid 20023] <... futex resumed>) = 0 [pid 20028] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20027] <... futex resumed>) = 1 [pid 20026] <... futex resumed>) = 0 [pid 20025] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20023] exit_group(0 [pid 20028] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20027] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20028] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20028] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20030], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20030 [pid 20028] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20028] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20030 attached [pid 20030] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20026] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20025] <... futex resumed>) = ? [pid 20023] <... exit_group resumed>) = ? [pid 20027] <... futex resumed>) = 0 [pid 20026] <... futex resumed>) = 1 [pid 20025] +++ exited with 0 +++ [pid 20027] dup(4) = 5 [pid 20027] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20027] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20023] +++ exited with 0 +++ [pid 20026] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20023, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20026] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20027] <... futex resumed>) = 0 [pid 20026] <... futex resumed>) = 1 [pid 20027] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20026] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 20029 attached [pid 20030] mkdir("./file0", 0777 [pid 3607] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20030] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20029] set_robust_list(0x555556ba76e0, 24 [pid 20030] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20029] <... set_robust_list resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20030] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20029] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3607] close(3 [pid 20030] <... futex resumed>) = 1 [pid 20029] <... prctl resumed>) = 0 [pid 20028] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20030] pipe2( [pid 20029] setpgid(0, 0 [pid 20028] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20030] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20029] <... setpgid resumed>) = 0 [pid 20028] <... futex resumed>) = 0 [pid 20027] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20030] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20028] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20027] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20031 ./strace-static-x86_64: Process 20031 attached [pid 20030] <... futex resumed>) = 0 [pid 20029] <... openat resumed>) = 3 [pid 20028] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20027] <... futex resumed>) = 1 [pid 20026] <... futex resumed>) = 0 [pid 20031] set_robust_list(0x555556ba76e0, 24 [pid 20030] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20029] write(3, "1000", 4 [pid 20028] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20027] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20026] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20031] <... set_robust_list resumed>) = 0 [pid 20030] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20029] <... write resumed>) = 4 [pid 20028] <... futex resumed>) = 0 [pid 20027] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20026] <... futex resumed>) = 0 [pid 20031] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20030] dup(4 [pid 20029] close(3 [pid 20028] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20027] write(5, NULL, 176 [pid 20026] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20031] <... prctl resumed>) = 0 [pid 20030] <... dup resumed>) = 5 [pid 20029] <... close resumed>) = 0 [pid 20027] <... write resumed>) = -1 EFAULT (Bad address) [pid 20031] setpgid(0, 0 [pid 20030] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20029] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20027] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20031] <... setpgid resumed>) = 0 [pid 20027] <... futex resumed>) = 1 [pid 20026] <... futex resumed>) = 0 [pid 20031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20027] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20026] exit_group(0 [pid 20031] <... openat resumed>) = 3 [pid 20027] <... futex resumed>) = ? [pid 20026] <... exit_group resumed>) = ? [pid 20031] write(3, "1000", 4 [pid 20030] <... futex resumed>) = 1 [pid 20029] <... futex resumed>) = 0 [pid 20028] <... futex resumed>) = 0 [pid 20027] +++ exited with 0 +++ [pid 20026] +++ exited with 0 +++ [pid 20031] <... write resumed>) = 4 [pid 20030] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20029] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20028] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20026, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20031] close(3 [pid 20030] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20029] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20028] <... futex resumed>) = 0 [pid 20031] <... close resumed>) = 0 [pid 20030] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20029] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20028] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20031] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20031] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20031] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20031] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20029] <... mprotect resumed>) = 0 [pid 20031] <... clone resumed>, parent_tid=[20032], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20032 [pid 20031] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20029] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20031] <... futex resumed>) = 0 [pid 20031] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20029] <... clone resumed>, parent_tid=[20033], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20033 ./strace-static-x86_64: Process 20032 attached [pid 3601] <... openat resumed>) = 3 [pid 20029] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20029] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20029] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20032] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20032] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20032] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20032] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20031] <... futex resumed>) = 0 [pid 20032] pipe2( [pid 20031] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20032] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20031] <... futex resumed>) = 0 [pid 20032] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20031] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20032] <... futex resumed>) = 0 [pid 20031] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20032] dup(4 [pid 20031] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20032] <... dup resumed>) = 5 [pid 20031] <... futex resumed>) = 0 [pid 20032] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20031] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20034 attached [pid 20032] <... futex resumed>) = 0 [pid 20031] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20034] set_robust_list(0x555556ba76e0, 24 [pid 20032] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20031] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20034] <... set_robust_list resumed>) = 0 [pid 20031] <... futex resumed>) = 0 [pid 20034] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20031] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20034] <... prctl resumed>) = 0 [pid 20034] setpgid(0, 0) = 0 [pid 20034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20034] write(3, "1000", 4) = 4 [pid 20034] close(3) = 0 [pid 20034] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20034 [pid 20034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20034] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20034] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20035], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20035 [pid 20034] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20034] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20035 attached [pid 20035] set_robust_list(0x7f61a3ef39e0, 24./strace-static-x86_64: Process 20033 attached [pid 20033] set_robust_list(0x7f61a3ef39e0, 24 [pid 20035] <... set_robust_list resumed>) = 0 [pid 20035] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20033] <... set_robust_list resumed>) = 0 [pid 20030] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20033] mkdir("./file0", 0777 [pid 20030] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20033] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20030] <... futex resumed>) = 1 [pid 20028] <... futex resumed>) = 0 [pid 20035] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20033] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20030] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20035] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20033] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20035] <... futex resumed>) = 1 [pid 20034] <... futex resumed>) = 0 [pid 20033] <... futex resumed>) = 1 [pid 20029] <... futex resumed>) = 0 [pid 20028] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20035] pipe2( [pid 20034] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20033] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20030] <... futex resumed>) = 0 [pid 20029] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20028] <... futex resumed>) = 1 [pid 20035] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20034] <... futex resumed>) = 0 [pid 20033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20030] write(5, NULL, 176 [pid 20029] <... futex resumed>) = 0 [pid 20028] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20035] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20034] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20033] pipe2( [pid 20032] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20030] <... write resumed>) = -1 EFAULT (Bad address) [pid 20029] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20035] <... futex resumed>) = 0 [pid 20034] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20033] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20032] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20030] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20035] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20034] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20033] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20032] <... futex resumed>) = 1 [pid 20031] <... futex resumed>) = 0 [pid 20030] <... futex resumed>) = 1 [pid 20028] <... futex resumed>) = 0 [pid 20035] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20034] <... futex resumed>) = 0 [pid 20033] <... futex resumed>) = 1 [pid 20032] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20031] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20030] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20029] <... futex resumed>) = 0 [pid 20028] exit_group(0 [pid 20035] dup(4 [pid 20034] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20033] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20032] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20031] <... futex resumed>) = 0 [pid 20030] <... futex resumed>) = ? [pid 20029] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20028] <... exit_group resumed>) = ? [pid 20035] <... dup resumed>) = 5 [pid 20033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20032] write(5, NULL, 176 [pid 20031] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20030] +++ exited with 0 +++ [pid 20029] <... futex resumed>) = 0 [pid 20028] +++ exited with 0 +++ [pid 20035] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20033] dup(4 [pid 20032] <... write resumed>) = -1 EFAULT (Bad address) [pid 20029] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20035] <... futex resumed>) = 1 [pid 20034] <... futex resumed>) = 0 [pid 20033] <... dup resumed>) = 5 [pid 20032] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20028, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20035] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20034] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20033] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20032] <... futex resumed>) = 1 [pid 20031] <... futex resumed>) = 0 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20035] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20034] <... futex resumed>) = 0 [pid 20033] <... futex resumed>) = 1 [pid 20032] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20031] exit_group(0 [pid 20029] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20035] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20034] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20033] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20032] <... futex resumed>) = ? [pid 20031] <... exit_group resumed>) = ? [pid 20029] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20032] +++ exited with 0 +++ [pid 20031] +++ exited with 0 +++ [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20033] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20029] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20029] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20031, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... openat resumed>) = 3 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20036 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20036 attached [pid 20036] set_robust_list(0x555556ba76e0, 24) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20037 [pid 20036] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 20037 attached [pid 20036] setpgid(0, 0 [pid 20035] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20033] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20037] set_robust_list(0x555556ba76e0, 24 [pid 20036] <... setpgid resumed>) = 0 [pid 20035] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20033] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20037] <... set_robust_list resumed>) = 0 [pid 20036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20035] <... futex resumed>) = 1 [pid 20034] <... futex resumed>) = 0 [pid 20033] <... futex resumed>) = 1 [pid 20029] <... futex resumed>) = 0 [pid 20037] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20036] <... openat resumed>) = 3 [pid 20035] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20034] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20033] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20029] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20037] <... prctl resumed>) = 0 [pid 20036] write(3, "1000", 4 [pid 20035] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20034] <... futex resumed>) = 0 [pid 20033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20029] <... futex resumed>) = 0 [pid 20037] setpgid(0, 0 [pid 20036] <... write resumed>) = 4 [pid 20035] write(5, NULL, 176 [pid 20034] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20033] write(5, NULL, 176 [pid 20029] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20037] <... setpgid resumed>) = 0 [pid 20036] close(3 [pid 20035] <... write resumed>) = -1 EFAULT (Bad address) [pid 20033] <... write resumed>) = -1 EFAULT (Bad address) [pid 20037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20036] <... close resumed>) = 0 [pid 20035] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20033] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20036] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20035] <... futex resumed>) = 1 [pid 20034] <... futex resumed>) = 0 [pid 20033] <... futex resumed>) = 1 [pid 20029] <... futex resumed>) = 0 [pid 20037] <... openat resumed>) = 3 [pid 20037] write(3, "1000", 4 [pid 20036] <... futex resumed>) = 0 [pid 20035] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20034] exit_group(0 [pid 20033] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20029] exit_group(0 [pid 20037] <... write resumed>) = 4 [pid 20036] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20035] <... futex resumed>) = ? [pid 20034] <... exit_group resumed>) = ? [pid 20033] <... futex resumed>) = ? [pid 20029] <... exit_group resumed>) = ? [pid 20037] close(3 [pid 20036] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20035] +++ exited with 0 +++ [pid 20034] +++ exited with 0 +++ [pid 20033] +++ exited with 0 +++ [pid 20036] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20029] +++ exited with 0 +++ [pid 20037] <... close resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20034, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20037] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20036] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20037] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20029, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20037] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20036] <... clone resumed>, parent_tid=[20038], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20038 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20037] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20036] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20037] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20036] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20037] <... mprotect resumed>) = 0 [pid 20036] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... openat resumed>) = 3 [pid 20037] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] close(3 [pid 3601] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20038 attached [pid 20037] <... clone resumed>, parent_tid=[20039], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20039 [pid 3606] <... close resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20038] set_robust_list(0x7f61a3ef39e0, 24 [pid 20037] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] close(3 [pid 20038] <... set_robust_list resumed>) = 0 [pid 20037] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20038] mkdir("./file0", 0777 [pid 20037] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20040 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20038] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20038] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20041 [pid 20038] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20038] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20036] <... futex resumed>) = 0 [pid 20036] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20038] <... futex resumed>) = 0 [pid 20036] <... futex resumed>) = 1 [pid 20038] pipe2( [pid 20036] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20038] <... pipe2 resumed>[3, 4], 0) = 0 ./strace-static-x86_64: Process 20039 attached [pid 20038] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20041 attached ./strace-static-x86_64: Process 20040 attached [pid 20039] set_robust_list(0x7f61a3ef39e0, 24 [pid 20038] <... futex resumed>) = 1 [pid 20036] <... futex resumed>) = 0 [pid 20040] set_robust_list(0x555556ba76e0, 24 [pid 20039] <... set_robust_list resumed>) = 0 [pid 20038] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20036] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20041] set_robust_list(0x555556ba76e0, 24 [pid 20038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20036] <... futex resumed>) = 0 [pid 20041] <... set_robust_list resumed>) = 0 [pid 20040] <... set_robust_list resumed>) = 0 [pid 20039] mkdir("./file0", 0777 [pid 20038] dup(4 [pid 20036] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20039] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20038] <... dup resumed>) = 5 [pid 20040] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20041] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20039] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20038] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20041] <... prctl resumed>) = 0 [pid 20040] <... prctl resumed>) = 0 [pid 20039] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20038] <... futex resumed>) = 1 [pid 20036] <... futex resumed>) = 0 [pid 20041] setpgid(0, 0 [pid 20040] setpgid(0, 0 [pid 20039] <... futex resumed>) = 1 [pid 20038] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20037] <... futex resumed>) = 0 [pid 20036] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20041] <... setpgid resumed>) = 0 [pid 20040] <... setpgid resumed>) = 0 [pid 20039] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20037] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20036] <... futex resumed>) = 0 [pid 20041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20039] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20038] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20037] <... futex resumed>) = 0 [pid 20036] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20041] <... openat resumed>) = 3 [pid 20040] <... openat resumed>) = 3 [pid 20039] pipe2( [pid 20037] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20041] write(3, "1000", 4 [pid 20040] write(3, "1000", 4 [pid 20039] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20041] <... write resumed>) = 4 [pid 20040] <... write resumed>) = 4 [pid 20039] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20041] close(3 [pid 20040] close(3 [pid 20039] <... futex resumed>) = 1 [pid 20037] <... futex resumed>) = 0 [pid 20041] <... close resumed>) = 0 [pid 20040] <... close resumed>) = 0 [pid 20039] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20037] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20041] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20040] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20039] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20037] <... futex resumed>) = 0 [pid 20041] <... futex resumed>) = 0 [pid 20040] <... futex resumed>) = 0 [pid 20039] dup(4 [pid 20038] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20037] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20041] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20040] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20039] <... dup resumed>) = 5 [pid 20038] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20041] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20040] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20039] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20038] <... futex resumed>) = 1 [pid 20036] <... futex resumed>) = 0 [pid 20041] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20040] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20039] <... futex resumed>) = 1 [pid 20038] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20037] <... futex resumed>) = 0 [pid 20036] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20041] <... mprotect resumed>) = 0 [pid 20040] <... mprotect resumed>) = 0 [pid 20039] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20038] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20037] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20036] <... futex resumed>) = 0 [pid 20041] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20040] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20039] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20038] write(5, NULL, 176 [pid 20037] <... futex resumed>) = 0 [pid 20036] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20039] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20038] <... write resumed>) = -1 EFAULT (Bad address) [pid 20037] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20041] <... clone resumed>, parent_tid=[20042], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20042 [pid 20040] <... clone resumed>, parent_tid=[20043], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20043 [pid 20038] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20036] <... futex resumed>) = 0 [pid 20041] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20040] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20038] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20036] exit_group(0 [pid 20038] <... futex resumed>) = ? [pid 20036] <... exit_group resumed>) = ? [pid 20038] +++ exited with 0 +++ [pid 20036] +++ exited with 0 +++ ./strace-static-x86_64: Process 20042 attached [pid 20042] set_robust_list(0x7f61a3ef39e0, 24 [pid 20041] <... futex resumed>) = 0 [pid 20040] <... futex resumed>) = 0 [pid 20042] <... set_robust_list resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20036, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20041] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20042] mkdir("./file0", 0777 [pid 20040] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20042] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20042] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20042] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20041] <... futex resumed>) = 0 [pid 20042] pipe2( [pid 20041] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20042] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20041] <... futex resumed>) = 0 [pid 20042] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20041] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20042] <... futex resumed>) = 0 [pid 20041] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20042] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20041] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20042] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20041] <... futex resumed>) = 0 [pid 20042] dup(4 [pid 20041] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20042] <... dup resumed>) = 5 [pid 20042] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20041] <... futex resumed>) = 0 [pid 20042] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20041] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20042] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20041] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20042] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20041] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20043 attached [pid 20039] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] <... openat resumed>) = 3 [pid 20043] set_robust_list(0x7f61a3ef39e0, 24 [pid 20039] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20043] <... set_robust_list resumed>) = 0 [pid 20039] <... futex resumed>) = 1 [pid 20037] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20043] mkdir("./file0", 0777 [pid 20039] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20037] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20043] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20039] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20037] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20043] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20042] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20039] write(5, NULL, 176 [pid 20037] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20043] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20042] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20039] <... write resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20044 attached [pid 20043] <... futex resumed>) = 1 [pid 20042] <... futex resumed>) = 1 [pid 20041] <... futex resumed>) = 0 [pid 20040] <... futex resumed>) = 0 [pid 20039] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20044] set_robust_list(0x555556ba76e0, 24 [pid 20043] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20042] write(5, NULL, 176 [pid 20041] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20040] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20039] <... futex resumed>) = 1 [pid 20037] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20044 [pid 20044] <... set_robust_list resumed>) = 0 [pid 20043] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20042] <... write resumed>) = -1 EFAULT (Bad address) [pid 20041] <... futex resumed>) = 0 [pid 20040] <... futex resumed>) = 0 [pid 20039] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20037] exit_group(0 [pid 20044] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20043] pipe2( [pid 20042] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20041] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20040] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20039] <... futex resumed>) = ? [pid 20037] <... exit_group resumed>) = ? [pid 20044] <... prctl resumed>) = 0 [pid 20043] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20042] <... futex resumed>) = 0 [pid 20041] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20039] +++ exited with 0 +++ [pid 20044] setpgid(0, 0 [pid 20043] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20044] <... setpgid resumed>) = 0 [pid 20043] <... futex resumed>) = 1 [pid 20040] <... futex resumed>) = 0 [pid 20044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20043] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20042] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20041] exit_group(0 [pid 20040] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20037] +++ exited with 0 +++ [pid 20044] <... openat resumed>) = 3 [pid 20043] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20042] <... futex resumed>) = ? [pid 20041] <... exit_group resumed>) = ? [pid 20040] <... futex resumed>) = 0 [pid 20044] write(3, "1000", 4 [pid 20043] dup(4 [pid 20042] +++ exited with 0 +++ [pid 20040] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20044] <... write resumed>) = 4 [pid 20043] <... dup resumed>) = 5 [pid 20044] close(3 [pid 20043] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20041] +++ exited with 0 +++ [pid 20044] <... close resumed>) = 0 [pid 20043] <... futex resumed>) = 1 [pid 20040] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20037, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20044] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20043] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20040] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20041, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20044] <... futex resumed>) = 0 [pid 20043] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20040] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20044] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20043] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20040] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3601] <... restart_syscall resumed>) = 0 [pid 20044] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20044] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] close(3 [pid 20044] <... mprotect resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... openat resumed>) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20045 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20046 ./strace-static-x86_64: Process 20045 attached [pid 20045] set_robust_list(0x555556ba76e0, 24 [pid 20044] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20045] <... set_robust_list resumed>) = 0 [pid 20045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20045] setpgid(0, 0) = 0 [pid 20045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20045] write(3, "1000", 4) = 4 [pid 20045] close(3) = 0 [pid 20045] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20044] <... clone resumed>, parent_tid=[20047], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20047 [pid 20045] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20044] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20043] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20046 attached [pid 20045] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20044] <... futex resumed>) = 0 [pid 20043] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20047 attached [pid 20045] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20047] set_robust_list(0x7f61a3ef39e0, 24 [pid 20045] <... mprotect resumed>) = 0 [pid 20047] <... set_robust_list resumed>) = 0 [pid 20045] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20047] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20045] <... clone resumed>, parent_tid=[20048], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20048 [pid 20047] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20045] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20044] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20043] <... futex resumed>) = 1 [pid 20040] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20048 attached [pid 20047] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20046] set_robust_list(0x555556ba76e0, 24 [pid 20045] <... futex resumed>) = 0 [pid 20044] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20043] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20040] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20048] set_robust_list(0x7f61a3ef39e0, 24 [pid 20047] <... futex resumed>) = 0 [pid 20046] <... set_robust_list resumed>) = 0 [pid 20045] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20044] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20043] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20040] <... futex resumed>) = 0 [pid 20048] <... set_robust_list resumed>) = 0 [pid 20047] pipe2( [pid 20046] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20044] <... futex resumed>) = 0 [pid 20043] write(5, NULL, 176 [pid 20040] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20048] mkdir("./file0", 0777 [pid 20047] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20046] <... prctl resumed>) = 0 [pid 20044] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20043] <... write resumed>) = -1 EFAULT (Bad address) [pid 20048] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20047] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20046] setpgid(0, 0 [pid 20044] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20043] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20048] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20047] <... futex resumed>) = 0 [pid 20046] <... setpgid resumed>) = 0 [pid 20044] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20043] <... futex resumed>) = 1 [pid 20040] <... futex resumed>) = 0 [pid 20048] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20047] dup(4 [pid 20046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20044] <... futex resumed>) = 0 [pid 20043] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20040] exit_group(0 [pid 20048] <... futex resumed>) = 1 [pid 20047] <... dup resumed>) = 5 [pid 20046] <... openat resumed>) = 3 [pid 20045] <... futex resumed>) = 0 [pid 20044] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20043] <... futex resumed>) = ? [pid 20040] <... exit_group resumed>) = ? [pid 20048] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20047] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20046] write(3, "1000", 4 [pid 20045] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20044] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20043] +++ exited with 0 +++ [pid 20048] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20047] <... futex resumed>) = 0 [pid 20045] <... futex resumed>) = 0 [pid 20048] pipe2( [pid 20047] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20046] <... write resumed>) = 4 [pid 20045] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20044] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20040] +++ exited with 0 +++ [pid 20048] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20047] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20046] close(3 [pid 20044] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20040, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20048] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20047] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20046] <... close resumed>) = 0 [pid 20044] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20048] <... futex resumed>) = 1 [pid 20046] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20045] <... futex resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20048] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20046] <... futex resumed>) = 0 [pid 20045] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20048] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20046] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20045] <... futex resumed>) = 0 [pid 20048] dup(4 [pid 20046] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20045] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20048] <... dup resumed>) = 5 [pid 20046] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20047] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20048] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20047] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20046] <... mprotect resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20048] <... futex resumed>) = 1 [pid 20047] <... futex resumed>) = 1 [pid 20046] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20045] <... futex resumed>) = 0 [pid 20044] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20048] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20047] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20045] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20044] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20049 attached [pid 20048] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20047] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20046] <... clone resumed>, parent_tid=[20049], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20049 [pid 20045] <... futex resumed>) = 0 [pid 20044] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20048] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20047] write(5, NULL, 176 [pid 20046] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20045] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20044] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 20049] set_robust_list(0x7f61a3ef39e0, 24 [pid 20046] <... futex resumed>) = 0 [pid 20047] <... write resumed>) = -1 EFAULT (Bad address) [pid 20049] <... set_robust_list resumed>) = 0 [pid 20047] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20046] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... close resumed>) = 0 [pid 20047] <... futex resumed>) = 1 [pid 20044] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20047] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20044] exit_group(0) = ? [pid 20049] mkdir("./file0", 0777 [pid 20047] <... futex resumed>) = ? [pid 20047] +++ exited with 0 +++ [pid 20049] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20044] +++ exited with 0 +++ [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20050 [pid 20048] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20044, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20048] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20050 attached [pid 20049] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20048] <... futex resumed>) = 1 [pid 20045] <... futex resumed>) = 0 [pid 20048] write(5, NULL, 176 [pid 20045] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20049] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20048] <... write resumed>) = -1 EFAULT (Bad address) [pid 20045] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20048] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20045] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20049] <... futex resumed>) = 1 [pid 20046] <... futex resumed>) = 0 [pid 20048] <... futex resumed>) = 0 [pid 20046] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20045] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20049] pipe2( [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20050] set_robust_list(0x555556ba76e0, 24 [pid 20049] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20048] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20046] <... futex resumed>) = 0 [pid 20045] exit_group(0 [pid 3604] close(3 [pid 20050] <... set_robust_list resumed>) = 0 [pid 20049] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20046] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20045] <... exit_group resumed>) = ? [pid 20048] <... futex resumed>) = ? [pid 3604] <... close resumed>) = 0 [pid 20046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20046] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20048] +++ exited with 0 +++ [pid 20046] <... futex resumed>) = 0 [pid 20045] +++ exited with 0 +++ [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20051 [pid 20049] <... futex resumed>) = 0 [pid 20050] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20049] dup(4 [pid 20046] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20050] <... prctl resumed>) = 0 [pid 20049] <... dup resumed>) = 5 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20045, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20050] setpgid(0, 0 [pid 20049] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20046] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20049] <... futex resumed>) = 1 [pid 20050] <... setpgid resumed>) = 0 [pid 20046] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20049] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20046] <... futex resumed>) = 0 [pid 20046] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20051 attached [pid 3607] close(3 [pid 20050] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] <... close resumed>) = 0 [pid 20051] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20050] <... openat resumed>) = 3 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20051] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20050] write(3, "1000", 4 [pid 20051] <... prctl resumed>) = 0 [pid 20050] <... write resumed>) = 4 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20052 [pid 20051] setpgid(0, 0 [pid 20050] close(3 [pid 20051] <... setpgid resumed>) = 0 [pid 20050] <... close resumed>) = 0 [pid 20051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20050] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20051] <... openat resumed>) = 3 [pid 20050] <... futex resumed>) = 0 [pid 20051] write(3, "1000", 4 [pid 20050] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20051] <... write resumed>) = 4 [pid 20050] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20051] close(3 [pid 20050] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20051] <... close resumed>) = 0 [pid 20050] <... mprotect resumed>) = 0 [pid 20051] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20050] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20051] <... futex resumed>) = 0 [pid 20051] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20050] <... clone resumed>, parent_tid=[20053], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20053 [pid 20051] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20050] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20051] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20050] <... futex resumed>) = 0 [pid 20051] <... mprotect resumed>) = 0 [pid 20050] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20051] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20049] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20052 attached [pid 20049] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20051] <... clone resumed>, parent_tid=[20054], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20054 [pid 20051] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20051] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20054 attached [pid 20054] set_robust_list(0x7f61a3ef39e0, 24 [pid 20049] <... futex resumed>) = 1 [pid 20046] <... futex resumed>) = 0 [pid 20054] <... set_robust_list resumed>) = 0 [pid 20046] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20049] write(5, NULL, 176./strace-static-x86_64: Process 20053 attached [pid 20054] mkdir("./file0", 0777 [pid 20052] set_robust_list(0x555556ba76e0, 24 [pid 20049] <... write resumed>) = -1 EFAULT (Bad address) [pid 20046] <... futex resumed>) = 0 [pid 20054] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20053] set_robust_list(0x7f61a3ef39e0, 24 [pid 20052] <... set_robust_list resumed>) = 0 [pid 20049] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20046] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20054] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20053] <... set_robust_list resumed>) = 0 [pid 20052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20049] <... futex resumed>) = 0 [pid 20046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20054] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20053] mkdir("./file0", 0777 [pid 20052] <... prctl resumed>) = 0 [pid 20049] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20046] exit_group(0 [pid 20054] <... futex resumed>) = 1 [pid 20053] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20052] setpgid(0, 0 [pid 20051] <... futex resumed>) = 0 [pid 20049] <... futex resumed>) = ? [pid 20046] <... exit_group resumed>) = ? [pid 20054] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20053] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20052] <... setpgid resumed>) = 0 [pid 20051] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20049] +++ exited with 0 +++ [pid 20054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20053] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20051] <... futex resumed>) = 0 [pid 20046] +++ exited with 0 +++ [pid 20054] pipe2( [pid 20053] <... futex resumed>) = 1 [pid 20052] <... openat resumed>) = 3 [pid 20051] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20050] <... futex resumed>) = 0 [pid 20054] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20053] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20052] write(3, "1000", 4 [pid 20050] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20054] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20053] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20052] <... write resumed>) = 4 [pid 20050] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20046, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20054] <... futex resumed>) = 1 [pid 20053] pipe2( [pid 20052] close(3 [pid 20051] <... futex resumed>) = 0 [pid 20050] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20054] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20053] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20052] <... close resumed>) = 0 [pid 20051] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20053] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20052] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20051] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20054] dup(4 [pid 20053] <... futex resumed>) = 1 [pid 20052] <... futex resumed>) = 0 [pid 20051] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20050] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20054] <... dup resumed>) = 5 [pid 20053] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20050] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20054] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20053] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20052] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20050] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20054] <... futex resumed>) = 1 [pid 20053] dup(4 [pid 20052] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20051] <... futex resumed>) = 0 [pid 20050] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... close resumed>) = 0 [pid 20054] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20053] <... dup resumed>) = 5 [pid 20052] <... mprotect resumed>) = 0 [pid 20051] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20053] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20052] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20051] <... futex resumed>) = 0 [pid 20053] <... futex resumed>) = 1 [pid 20054] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20053] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20052] <... clone resumed>, parent_tid=[20055], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20055 [pid 20051] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20050] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20056 [pid 20052] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20050] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20052] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20056 attached [pid 20056] set_robust_list(0x555556ba76e0, 24 [pid 20053] <... futex resumed>) = 0 [pid 20050] <... futex resumed>) = 1 [pid 20056] <... set_robust_list resumed>) = 0 [pid 20053] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20056] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20050] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20056] <... prctl resumed>) = 0 [pid 20056] setpgid(0, 0) = 0 [pid 20056] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20056] write(3, "1000", 4) = 4 [pid 20056] close(3) = 0 ./strace-static-x86_64: Process 20055 attached [pid 20056] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20054] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20055] set_robust_list(0x7f61a3ef39e0, 24 [pid 20054] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20055] <... set_robust_list resumed>) = 0 [pid 20054] <... futex resumed>) = 1 [pid 20051] <... futex resumed>) = 0 [pid 20056] <... futex resumed>) = 0 [pid 20054] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20053] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20051] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20056] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20055] mkdir("./file0", 0777 [pid 20054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20053] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20051] <... futex resumed>) = 0 [pid 20056] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20054] write(5, NULL, 176 [pid 20053] <... futex resumed>) = 1 [pid 20051] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20050] <... futex resumed>) = 0 [pid 20056] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20055] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20054] <... write resumed>) = -1 EFAULT (Bad address) [pid 20053] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20050] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20056] <... mprotect resumed>) = 0 [pid 20055] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20054] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20053] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20050] <... futex resumed>) = 0 [pid 20056] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20055] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20054] <... futex resumed>) = 1 [pid 20053] write(5, NULL, 176 [pid 20051] <... futex resumed>) = 0 [pid 20050] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20057 attached [pid 20055] <... futex resumed>) = 1 [pid 20054] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20053] <... write resumed>) = -1 EFAULT (Bad address) [pid 20052] <... futex resumed>) = 0 [pid 20051] exit_group(0 [pid 20057] set_robust_list(0x7f61a3ef39e0, 24 [pid 20056] <... clone resumed>, parent_tid=[20057], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20057 [pid 20055] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20054] <... futex resumed>) = ? [pid 20053] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20052] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20051] <... exit_group resumed>) = ? [pid 20057] <... set_robust_list resumed>) = 0 [pid 20056] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20054] +++ exited with 0 +++ [pid 20053] <... futex resumed>) = 1 [pid 20052] <... futex resumed>) = 0 [pid 20050] <... futex resumed>) = 0 [pid 20057] mkdir("./file0", 0777 [pid 20056] <... futex resumed>) = 0 [pid 20053] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20052] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20057] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20056] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20055] pipe2( [pid 20051] +++ exited with 0 +++ [pid 20050] exit_group(0 [pid 20057] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20055] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20053] <... futex resumed>) = ? [pid 20050] <... exit_group resumed>) = ? [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20051, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20057] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20055] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20053] +++ exited with 0 +++ [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20057] <... futex resumed>) = 1 [pid 20056] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20057] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20056] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20056] <... futex resumed>) = 0 [pid 20055] <... futex resumed>) = 1 [pid 20052] <... futex resumed>) = 0 [pid 20050] +++ exited with 0 +++ [pid 20057] pipe2( [pid 20056] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20055] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20052] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20050, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20057] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20052] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20057] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20055] dup(4 [pid 20052] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20057] <... futex resumed>) = 1 [pid 20056] <... futex resumed>) = 0 [pid 20055] <... dup resumed>) = 5 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20057] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20056] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20055] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] close(3 [pid 20057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20056] <... futex resumed>) = 0 [pid 20055] <... futex resumed>) = 1 [pid 20052] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 3604] <... close resumed>) = 0 [pid 20057] dup(4 [pid 20056] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20055] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20052] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20057] <... dup resumed>) = 5 [pid 20055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20052] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20058 attached [pid 20057] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20055] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20052] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 20058] set_robust_list(0x555556ba76e0, 24 [pid 20057] <... futex resumed>) = 1 [pid 20056] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20058 [pid 20058] <... set_robust_list resumed>) = 0 [pid 20057] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20056] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20058] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20056] <... futex resumed>) = 0 [pid 20055] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20058] <... prctl resumed>) = 0 [pid 20057] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20056] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20058] setpgid(0, 0 [pid 20055] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20059 attached [pid 20058] <... setpgid resumed>) = 0 [pid 20055] <... futex resumed>) = 1 [pid 20052] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20059 [pid 20059] set_robust_list(0x555556ba76e0, 24 [pid 20058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20055] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20052] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20059] <... set_robust_list resumed>) = 0 [pid 20055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20052] <... futex resumed>) = 0 [pid 20059] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20055] write(5, NULL, 176 [pid 20052] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20059] <... prctl resumed>) = 0 [pid 20055] <... write resumed>) = -1 EFAULT (Bad address) [pid 20059] setpgid(0, 0 [pid 20055] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20059] <... setpgid resumed>) = 0 [pid 20055] <... futex resumed>) = 1 [pid 20052] <... futex resumed>) = 0 [pid 20059] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20055] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20052] exit_group(0 [pid 20059] <... openat resumed>) = 3 [pid 20055] <... futex resumed>) = ? [pid 20052] <... exit_group resumed>) = ? [pid 20059] write(3, "1000", 4 [pid 20058] <... openat resumed>) = 3 [pid 20057] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20055] +++ exited with 0 +++ [pid 20052] +++ exited with 0 +++ [pid 20059] <... write resumed>) = 4 [pid 20058] write(3, "1000", 4 [pid 20057] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20052, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20059] close(3 [pid 20058] <... write resumed>) = 4 [pid 20057] <... futex resumed>) = 1 [pid 20056] <... futex resumed>) = 0 [pid 20059] <... close resumed>) = 0 [pid 20058] close(3 [pid 20057] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20056] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20059] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20058] <... close resumed>) = 0 [pid 20057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20056] <... futex resumed>) = 0 [pid 20059] <... futex resumed>) = 0 [pid 20058] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20057] write(5, NULL, 176 [pid 20056] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20059] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20058] <... futex resumed>) = 0 [pid 20057] <... write resumed>) = -1 EFAULT (Bad address) [pid 20059] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20058] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20057] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20059] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20058] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20057] <... futex resumed>) = 1 [pid 20056] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20059] <... mprotect resumed>) = 0 [pid 20058] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20057] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20056] exit_group(0 [pid 3607] <... openat resumed>) = 3 [pid 20059] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20058] <... mprotect resumed>) = 0 [pid 20057] <... futex resumed>) = ? [pid 20056] <... exit_group resumed>) = ? [pid 3607] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20060 attached [pid 20058] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20057] +++ exited with 0 +++ [pid 20056] +++ exited with 0 +++ [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20059] <... clone resumed>, parent_tid=[20060], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20060 [pid 3607] close(3 [pid 20059] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20058] <... clone resumed>, parent_tid=[20061], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20061 [pid 3607] <... close resumed>) = 0 [pid 20058] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20058] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20061 attached [pid 20061] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20061] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20061] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20061] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20058] <... futex resumed>) = 0 [pid 20058] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20058] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20061] <... futex resumed>) = 1 [pid 20061] pipe2([3, 4], 0) = 0 [pid 20061] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20058] <... futex resumed>) = 0 [pid 20058] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20058] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20061] <... futex resumed>) = 1 [pid 20061] dup(4) = 5 [pid 20061] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20058] <... futex resumed>) = 0 [pid 20058] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20059] <... futex resumed>) = 0 [pid 20058] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20056, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20061] <... futex resumed>) = 1 [pid 20060] set_robust_list(0x7f61a3ef39e0, 24 [pid 20059] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20058] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20061] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20060] <... set_robust_list resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20062 ./strace-static-x86_64: Process 20062 attached [pid 20060] mkdir("./file0", 0777 [pid 3601] <... openat resumed>) = 3 [pid 20062] set_robust_list(0x555556ba76e0, 24 [pid 20060] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20062] <... set_robust_list resumed>) = 0 [pid 20060] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20062] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20060] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 20062] <... prctl resumed>) = 0 [pid 20060] <... futex resumed>) = 1 [pid 20059] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20062] setpgid(0, 0 [pid 20060] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20059] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20062] <... setpgid resumed>) = 0 [pid 20060] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20059] <... futex resumed>) = 0 [pid 20062] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20060] pipe2( [pid 20059] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20063 [pid 20062] <... openat resumed>) = 3 [pid 20060] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20062] write(3, "1000", 4 [pid 20060] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20063 attached [pid 20062] <... write resumed>) = 4 [pid 20061] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20060] <... futex resumed>) = 1 [pid 20059] <... futex resumed>) = 0 [pid 20063] set_robust_list(0x555556ba76e0, 24 [pid 20062] close(3 [pid 20061] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20060] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20059] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20063] <... set_robust_list resumed>) = 0 [pid 20062] <... close resumed>) = 0 [pid 20061] <... futex resumed>) = 1 [pid 20060] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20059] <... futex resumed>) = 0 [pid 20058] <... futex resumed>) = 0 [pid 20063] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20062] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20061] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20060] dup(4 [pid 20059] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20058] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20063] <... prctl resumed>) = 0 [pid 20062] <... futex resumed>) = 0 [pid 20061] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20060] <... dup resumed>) = 5 [pid 20058] <... futex resumed>) = 0 [pid 20063] setpgid(0, 0 [pid 20062] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20061] write(5, NULL, 176 [pid 20060] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20058] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20063] <... setpgid resumed>) = 0 [pid 20062] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20061] <... write resumed>) = -1 EFAULT (Bad address) [pid 20060] <... futex resumed>) = 1 [pid 20059] <... futex resumed>) = 0 [pid 20063] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20062] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20061] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20060] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20059] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20063] <... openat resumed>) = 3 [pid 20062] <... mprotect resumed>) = 0 [pid 20061] <... futex resumed>) = 1 [pid 20060] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20059] <... futex resumed>) = 0 [pid 20058] <... futex resumed>) = 0 [pid 20063] write(3, "1000", 4 [pid 20062] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20061] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20060] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20059] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20058] exit_group(0 [pid 20063] <... write resumed>) = 4 [pid 20061] <... futex resumed>) = ? [pid 20058] <... exit_group resumed>) = ? [pid 20063] close(3 [pid 20062] <... clone resumed>, parent_tid=[20064], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20064 [pid 20061] +++ exited with 0 +++ [pid 20058] +++ exited with 0 +++ [pid 20063] <... close resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20058, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20063] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20062] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20063] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20062] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20063] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20062] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... openat resumed>) = 3 [pid 20063] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20063] <... mprotect resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20063] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] close(3) = 0 [pid 20063] <... clone resumed>, parent_tid=[20065], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20065 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20063] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20066 [pid 20063] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20064 attached [pid 20064] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20064] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20064] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20064] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20064] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20066 attached [pid 20066] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20066] setpgid(0, 0) = 0 [pid 20066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20062] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20062] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20065 attached [pid 20064] <... futex resumed>) = 0 [pid 20062] <... futex resumed>) = 1 [pid 20066] <... openat resumed>) = 3 [pid 20064] pipe2( [pid 20066] write(3, "1000", 4 [pid 20064] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20060] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20066] <... write resumed>) = 4 [pid 20064] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20062] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20060] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20066] close(3 [pid 20065] set_robust_list(0x7f61a3ef39e0, 24 [pid 20064] <... futex resumed>) = 0 [pid 20062] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20060] <... futex resumed>) = 1 [pid 20059] <... futex resumed>) = 0 [pid 20066] <... close resumed>) = 0 [pid 20064] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20062] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20065] <... set_robust_list resumed>) = 0 [pid 20060] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20059] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20066] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20065] mkdir("./file0", 0777 [pid 20064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20062] <... futex resumed>) = 0 [pid 20060] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20059] <... futex resumed>) = 0 [pid 20066] <... futex resumed>) = 0 [pid 20065] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20064] dup(4 [pid 20062] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20060] write(5, NULL, 176 [pid 20059] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20065] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20064] <... dup resumed>) = 5 [pid 20060] <... write resumed>) = -1 EFAULT (Bad address) [pid 20066] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20065] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20064] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20060] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20066] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20065] <... futex resumed>) = 1 [pid 20064] <... futex resumed>) = 1 [pid 20063] <... futex resumed>) = 0 [pid 20062] <... futex resumed>) = 0 [pid 20060] <... futex resumed>) = 1 [pid 20059] <... futex resumed>) = 0 [pid 20066] <... mprotect resumed>) = 0 [pid 20065] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20064] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20063] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20062] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20060] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20059] exit_group(0 [pid 20066] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20063] <... futex resumed>) = 0 [pid 20062] <... futex resumed>) = 0 [pid 20060] <... futex resumed>) = ? [pid 20059] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20067 attached [pid 20065] pipe2( [pid 20064] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20063] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20062] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20060] +++ exited with 0 +++ [pid 20067] set_robust_list(0x7f61a3ef39e0, 24 [pid 20066] <... clone resumed>, parent_tid=[20067], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20067 [pid 20065] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20059] +++ exited with 0 +++ [pid 20067] <... set_robust_list resumed>) = 0 [pid 20066] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20065] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20064] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20067] mkdir("./file0", 0777 [pid 20066] <... futex resumed>) = 0 [pid 20065] <... futex resumed>) = 1 [pid 20064] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20063] <... futex resumed>) = 0 [pid 20066] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20065] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20067] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20064] <... futex resumed>) = 1 [pid 20063] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20062] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20059, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20067] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20064] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20063] <... futex resumed>) = 0 [pid 20062] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20067] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20065] dup(4 [pid 20064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20063] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20062] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20067] <... futex resumed>) = 1 [pid 20066] <... futex resumed>) = 0 [pid 20065] <... dup resumed>) = 5 [pid 20064] write(5, NULL, 176 [pid 20062] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20067] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20066] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20065] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20064] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20066] <... futex resumed>) = 0 [pid 20065] <... futex resumed>) = 1 [pid 20064] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20063] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20067] pipe2( [pid 20066] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20065] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20064] <... futex resumed>) = 1 [pid 20063] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20062] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20064] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20063] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20063] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20068 [pid 20067] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20067] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20066] <... futex resumed>) = 0 [pid 20065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20062] exit_group(0./strace-static-x86_64: Process 20068 attached [pid 20067] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20066] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20065] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20064] <... futex resumed>) = ? [pid 20062] <... exit_group resumed>) = ? [pid 20067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20066] <... futex resumed>) = 0 [pid 20064] +++ exited with 0 +++ [pid 20067] dup(4 [pid 20066] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20062] +++ exited with 0 +++ [pid 20067] <... dup resumed>) = 5 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20062, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20067] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20067] <... futex resumed>) = 1 [pid 20066] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20067] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20066] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20066] <... futex resumed>) = 0 [pid 20067] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20066] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20068] set_robust_list(0x555556ba76e0, 24) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20069 [pid 20068] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 20069 attached ) = 0 [pid 20068] setpgid(0, 0 [pid 20069] set_robust_list(0x555556ba76e0, 24 [pid 20068] <... setpgid resumed>) = 0 [pid 20069] <... set_robust_list resumed>) = 0 [pid 20068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20065] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20069] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20068] <... openat resumed>) = 3 [pid 20065] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20069] <... prctl resumed>) = 0 [pid 20068] write(3, "1000", 4 [pid 20065] <... futex resumed>) = 1 [pid 20069] setpgid(0, 0 [pid 20068] <... write resumed>) = 4 [pid 20065] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20069] <... setpgid resumed>) = 0 [pid 20068] close(3 [pid 20069] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20068] <... close resumed>) = 0 [pid 20069] <... openat resumed>) = 3 [pid 20068] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20069] write(3, "1000", 4 [pid 20068] <... futex resumed>) = 0 [pid 20069] <... write resumed>) = 4 [pid 20068] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20069] close(3 [pid 20068] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20069] <... close resumed>) = 0 [pid 20068] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20069] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20068] <... mprotect resumed>) = 0 [pid 20069] <... futex resumed>) = 0 [pid 20068] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20069] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20068] <... clone resumed>, parent_tid=[20070], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20070 [pid 20069] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20068] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20069] <... mprotect resumed>) = 0 [pid 20068] <... futex resumed>) = 0 [pid 20069] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20068] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20069] <... clone resumed>, parent_tid=[20071], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20071 [pid 20069] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20069] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20070 attached [pid 20070] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20070] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20070] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20070] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20068] <... futex resumed>) = 0 [pid 20068] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20068] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20070] <... futex resumed>) = 1 [pid 20070] pipe2([3, 4], 0) = 0 [pid 20070] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20068] <... futex resumed>) = 0 [pid 20068] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20068] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20070] <... futex resumed>) = 1 [pid 20070] dup(4) = 5 [pid 20070] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20063] <... futex resumed>) = 0 [pid 20063] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20065] <... futex resumed>) = 0 [pid 20063] <... futex resumed>) = 1 [pid 20065] write(5, NULL, 176 [pid 20063] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20065] <... write resumed>) = -1 EFAULT (Bad address) [pid 20065] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20071 attached [pid 20068] <... futex resumed>) = 0 [pid 20065] <... futex resumed>) = 1 [pid 20063] <... futex resumed>) = 0 [pid 20070] <... futex resumed>) = 1 [pid 20068] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20065] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20071] set_robust_list(0x7f61a3ef39e0, 24 [pid 20070] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20068] <... futex resumed>) = 0 [pid 20067] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20063] exit_group(0 [pid 20071] <... set_robust_list resumed>) = 0 [pid 20068] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20067] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20065] <... futex resumed>) = ? [pid 20063] <... exit_group resumed>) = ? [pid 20071] mkdir("./file0", 0777 [pid 20067] <... futex resumed>) = 1 [pid 20066] <... futex resumed>) = 0 [pid 20065] +++ exited with 0 +++ [pid 20063] +++ exited with 0 +++ [pid 20071] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20067] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20066] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20071] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20066] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20063, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20071] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20067] write(5, NULL, 176 [pid 20066] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20071] <... futex resumed>) = 1 [pid 20069] <... futex resumed>) = 0 [pid 20067] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] <... restart_syscall resumed>) = 0 [pid 20071] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20069] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20067] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20069] <... futex resumed>) = 0 [pid 20067] <... futex resumed>) = 1 [pid 20066] <... futex resumed>) = 0 [pid 20071] pipe2( [pid 20069] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20067] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20066] exit_group(0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20071] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20070] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20066] <... exit_group resumed>) = ? [pid 20071] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20067] <... futex resumed>) = ? [pid 3601] <... openat resumed>) = 3 [pid 20070] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20068] <... futex resumed>) = 0 [pid 20070] write(5, NULL, 176 [pid 20068] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20070] <... write resumed>) = -1 EFAULT (Bad address) [pid 20068] <... futex resumed>) = 0 [pid 20067] +++ exited with 0 +++ [pid 20066] +++ exited with 0 +++ [pid 20071] <... futex resumed>) = 1 [pid 20070] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20069] <... futex resumed>) = 0 [pid 20068] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20066, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20071] dup(4 [pid 20070] <... futex resumed>) = 0 [pid 20069] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20071] <... dup resumed>) = 5 [pid 20070] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20069] <... futex resumed>) = 0 [pid 20068] exit_group(0 [pid 3601] close(3 [pid 20071] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20070] <... futex resumed>) = ? [pid 20069] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20068] <... exit_group resumed>) = ? [pid 3601] <... close resumed>) = 0 [pid 20071] <... futex resumed>) = 0 [pid 20070] +++ exited with 0 +++ [pid 20069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20068] +++ exited with 0 +++ [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20071] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20069] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20072 attached [pid 20071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20069] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20068, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20072] set_robust_list(0x555556ba76e0, 24 [pid 20071] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20069] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20072 [pid 3606] <... openat resumed>) = 3 [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3606] close(3 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20072] <... set_robust_list resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20072] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20072] <... prctl resumed>) = 0 [pid 20072] setpgid(0, 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20074 [pid 20072] <... setpgid resumed>) = 0 [pid 20072] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20072] write(3, "1000", 4) = 4 [pid 20072] close(3) = 0 [pid 20072] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20072] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20072] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20072] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20075], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20075 [pid 20072] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20072] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20073 ./strace-static-x86_64: Process 20074 attached [pid 20074] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20071] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20074] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 20075 attached ./strace-static-x86_64: Process 20073 attached [pid 20074] setpgid(0, 0 [pid 20071] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20074] <... setpgid resumed>) = 0 [pid 20073] set_robust_list(0x555556ba76e0, 24 [pid 20071] <... futex resumed>) = 1 [pid 20069] <... futex resumed>) = 0 [pid 20075] set_robust_list(0x7f61a3ef39e0, 24 [pid 20074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20073] <... set_robust_list resumed>) = 0 [pid 20071] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20069] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20075] <... set_robust_list resumed>) = 0 [pid 20074] <... openat resumed>) = 3 [pid 20073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20069] <... futex resumed>) = 0 [pid 20075] mkdir("./file0", 0777 [pid 20074] write(3, "1000", 4 [pid 20073] <... prctl resumed>) = 0 [pid 20071] write(5, NULL, 176 [pid 20069] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20075] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20074] <... write resumed>) = 4 [pid 20073] setpgid(0, 0 [pid 20071] <... write resumed>) = -1 EFAULT (Bad address) [pid 20075] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20074] close(3 [pid 20073] <... setpgid resumed>) = 0 [pid 20071] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20075] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20074] <... close resumed>) = 0 [pid 20073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20071] <... futex resumed>) = 1 [pid 20069] <... futex resumed>) = 0 [pid 20075] <... futex resumed>) = 1 [pid 20074] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20073] <... openat resumed>) = 3 [pid 20072] <... futex resumed>) = 0 [pid 20071] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20069] exit_group(0 [pid 20075] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20074] <... futex resumed>) = 0 [pid 20073] write(3, "1000", 4 [pid 20072] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20071] <... futex resumed>) = ? [pid 20069] <... exit_group resumed>) = ? [pid 20075] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20073] <... write resumed>) = 4 [pid 20072] <... futex resumed>) = 0 [pid 20071] +++ exited with 0 +++ [pid 20075] pipe2( [pid 20074] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20073] close(3 [pid 20072] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20069] +++ exited with 0 +++ [pid 20075] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20074] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20073] <... close resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20069, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20075] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20074] <... mprotect resumed>) = 0 [pid 20073] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20075] <... futex resumed>) = 1 [pid 20074] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20073] <... futex resumed>) = 0 [pid 20072] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20076 attached [pid 20075] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20072] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20076] set_robust_list(0x7f61a3ef39e0, 24 [pid 20075] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20074] <... clone resumed>, parent_tid=[20076], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20076 [pid 20073] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20072] <... futex resumed>) = 0 [pid 20075] dup(4 [pid 20074] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20073] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20072] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20076] <... set_robust_list resumed>) = 0 [pid 20075] <... dup resumed>) = 5 [pid 20074] <... futex resumed>) = 0 [pid 20073] <... mprotect resumed>) = 0 [pid 20075] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20074] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20073] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20076] mkdir("./file0", 0777 [pid 20075] <... futex resumed>) = 1 [pid 20072] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20076] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20075] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20073] <... clone resumed>, parent_tid=[20077], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20077 [pid 20072] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20076] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20075] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20073] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20072] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20076] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20075] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20073] <... futex resumed>) = 0 [pid 20072] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] close(3) = 0 [pid 20073] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20078 ./strace-static-x86_64: Process 20077 attached [pid 20077] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20077] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20077] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20077] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20077] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20078 attached [pid 20078] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20078] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20078] setpgid(0, 0) = 0 [pid 20078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20074] <... futex resumed>) = 0 [pid 20073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20078] write(3, "1000", 4 [pid 20074] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20073] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20078] <... write resumed>) = 4 [pid 20077] <... futex resumed>) = 0 [pid 20074] <... futex resumed>) = 0 [pid 20073] <... futex resumed>) = 1 [pid 20078] close(3 [pid 20077] pipe2( [pid 20074] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20073] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20078] <... close resumed>) = 0 [pid 20077] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20078] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20077] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20078] <... futex resumed>) = 0 [pid 20077] <... futex resumed>) = 1 [pid 20076] <... futex resumed>) = 1 [pid 20073] <... futex resumed>) = 0 [pid 20075] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20077] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20076] pipe2( [pid 20075] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20073] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20078] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20076] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20075] <... futex resumed>) = 1 [pid 20073] <... futex resumed>) = 0 [pid 20072] <... futex resumed>) = 0 [pid 20078] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20077] dup(4 [pid 20076] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20075] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20073] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20072] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20078] <... mprotect resumed>) = 0 [pid 20077] <... dup resumed>) = 5 [pid 20076] <... futex resumed>) = 1 [pid 20075] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20074] <... futex resumed>) = 0 [pid 20072] <... futex resumed>) = 0 [pid 20078] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20077] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20076] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20075] write(5, NULL, 176 [pid 20074] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20072] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20079 attached [pid 20077] <... futex resumed>) = 1 [pid 20076] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20075] <... write resumed>) = -1 EFAULT (Bad address) [pid 20074] <... futex resumed>) = 0 [pid 20073] <... futex resumed>) = 0 [pid 20079] set_robust_list(0x7f61a3ef39e0, 24 [pid 20078] <... clone resumed>, parent_tid=[20079], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20079 [pid 20077] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20076] dup(4 [pid 20075] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20074] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20073] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20078] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20076] <... dup resumed>) = 5 [pid 20075] <... futex resumed>) = 1 [pid 20073] <... futex resumed>) = 0 [pid 20072] <... futex resumed>) = 0 [pid 20079] <... set_robust_list resumed>) = 0 [pid 20078] <... futex resumed>) = 0 [pid 20077] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20076] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20075] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20073] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20072] exit_group(0 [pid 20079] mkdir("./file0", 0777 [pid 20078] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20076] <... futex resumed>) = 1 [pid 20075] <... futex resumed>) = ? [pid 20074] <... futex resumed>) = 0 [pid 20072] <... exit_group resumed>) = ? [pid 20079] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20077] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20076] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20075] +++ exited with 0 +++ [pid 20074] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20079] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20076] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20072] +++ exited with 0 +++ [pid 20074] <... futex resumed>) = 0 [pid 20079] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20077] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20076] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20074] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20079] <... futex resumed>) = 1 [pid 20078] <... futex resumed>) = 0 [pid 20077] <... futex resumed>) = 1 [pid 20073] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20072, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20078] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20077] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20073] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20078] <... futex resumed>) = 0 [pid 20077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20073] <... futex resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20078] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20077] write(5, NULL, 176 [pid 20073] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20077] <... write resumed>) = -1 EFAULT (Bad address) [pid 20079] pipe2( [pid 20077] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20077] <... futex resumed>) = 1 [pid 20073] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20077] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20073] exit_group(0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20077] <... futex resumed>) = ? [pid 20073] <... exit_group resumed>) = ? [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20077] +++ exited with 0 +++ [pid 20073] +++ exited with 0 +++ [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20080 ./strace-static-x86_64: Process 20080 attached [pid 20080] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20080] setpgid(0, 0) = 0 [pid 20080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20079] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20073, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20079] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20078] <... futex resumed>) = 0 [pid 20079] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20078] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20079] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20078] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20079] dup(4 [pid 20078] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20079] <... dup resumed>) = 5 [pid 3604] <... openat resumed>) = 3 [pid 20079] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20080] <... openat resumed>) = 3 [pid 20080] write(3, "1000", 4) = 4 [pid 20076] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20080] close(3 [pid 20079] <... futex resumed>) = 1 [pid 20078] <... futex resumed>) = 0 [pid 20076] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20080] <... close resumed>) = 0 [pid 20079] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20078] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20076] <... futex resumed>) = 1 [pid 20074] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20080] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20079] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20078] <... futex resumed>) = 0 [pid 20076] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20074] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20080] <... futex resumed>) = 0 [pid 20079] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20078] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20076] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20074] <... futex resumed>) = 0 [pid 20080] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20074] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20080] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20076] write(5, NULL, 176 [pid 20080] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20076] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20081 [pid 20080] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20082], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20082 [pid 20080] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20080] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20076] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20074] <... futex resumed>) = 0 [pid 20076] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20074] exit_group(0) = ? [pid 20076] <... futex resumed>) = ? ./strace-static-x86_64: Process 20082 attached [pid 20076] +++ exited with 0 +++ [pid 20074] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20074, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20082] set_robust_list(0x7f61a3ef39e0, 24 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20079] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20079] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 20081 attached [pid 20082] <... set_robust_list resumed>) = 0 [pid 20079] <... futex resumed>) = 1 [pid 20078] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20079] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20078] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20079] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20078] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20079] write(5, NULL, 176 [pid 20078] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 20082] mkdir("./file0", 0777 [pid 20081] set_robust_list(0x555556ba76e0, 24 [pid 20079] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20083 ./strace-static-x86_64: Process 20083 attached [pid 20083] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20083] setpgid(0, 0) = 0 [pid 20083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20079] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20082] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20081] <... set_robust_list resumed>) = 0 [pid 20079] <... futex resumed>) = 1 [pid 20078] <... futex resumed>) = 0 [pid 20082] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20079] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20078] exit_group(0 [pid 20082] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20081] <... prctl resumed>) = 0 [pid 20079] <... futex resumed>) = ? [pid 20078] <... exit_group resumed>) = ? [pid 20083] <... openat resumed>) = 3 [pid 20082] <... futex resumed>) = 1 [pid 20081] setpgid(0, 0 [pid 20079] +++ exited with 0 +++ [pid 20078] +++ exited with 0 +++ [pid 20083] write(3, "1000", 4 [pid 20082] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20081] <... setpgid resumed>) = 0 [pid 20083] <... write resumed>) = 4 [pid 20081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20083] close(3 [pid 20081] <... openat resumed>) = 3 [pid 20083] <... close resumed>) = 0 [pid 20081] write(3, "1000", 4 [pid 20083] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20081] <... write resumed>) = 4 [pid 20080] <... futex resumed>) = 0 [pid 20083] <... futex resumed>) = 0 [pid 20081] close(3 [pid 20080] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20078, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20082] <... futex resumed>) = 0 [pid 20081] <... close resumed>) = 0 [pid 20080] <... futex resumed>) = 1 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20083] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20082] pipe2( [pid 20081] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20080] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... restart_syscall resumed>) = 0 [pid 20083] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20082] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20081] <... futex resumed>) = 0 [pid 20083] <... mprotect resumed>) = 0 [pid 20082] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20081] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20083] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20082] <... futex resumed>) = 1 [pid 20081] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20080] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 20084 attached [pid 20082] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20081] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20080] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20083] <... clone resumed>, parent_tid=[20084], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20084 [pid 20082] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20081] <... mprotect resumed>) = 0 [pid 20080] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20084] set_robust_list(0x7f61a3ef39e0, 24 [pid 20083] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20082] dup(4 [pid 20081] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20080] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20083] <... futex resumed>) = 0 [pid 20082] <... dup resumed>) = 5 [pid 3607] close(3 [pid 20084] <... set_robust_list resumed>) = 0 [pid 20083] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20082] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20081] <... clone resumed>, parent_tid=[20085], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20085 [pid 3607] <... close resumed>) = 0 [pid 20082] <... futex resumed>) = 1 [pid 20080] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20082] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20080] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20082] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20080] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20086 [pid 20082] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20080] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20081] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20081] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20085 attached [pid 20084] mkdir("./file0", 0777 [pid 20085] set_robust_list(0x7f61a3ef39e0, 24 [pid 20084] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 20086 attached [pid 20085] <... set_robust_list resumed>) = 0 [pid 20082] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20086] set_robust_list(0x555556ba76e0, 24 [pid 20085] mkdir("./file0", 0777 [pid 20084] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20082] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20086] <... set_robust_list resumed>) = 0 [pid 20085] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20082] <... futex resumed>) = 1 [pid 20080] <... futex resumed>) = 0 [pid 20086] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20085] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20084] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20082] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20080] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20086] <... prctl resumed>) = 0 [pid 20085] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20084] <... futex resumed>) = 1 [pid 20083] <... futex resumed>) = 0 [pid 20082] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20080] <... futex resumed>) = 0 [pid 20086] setpgid(0, 0 [pid 20085] <... futex resumed>) = 1 [pid 20084] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20083] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20082] write(5, NULL, 176 [pid 20081] <... futex resumed>) = 0 [pid 20080] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20086] <... setpgid resumed>) = 0 [pid 20085] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20083] <... futex resumed>) = 0 [pid 20082] <... write resumed>) = -1 EFAULT (Bad address) [pid 20081] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20084] pipe2( [pid 20083] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20082] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20081] <... futex resumed>) = 0 [pid 20086] <... openat resumed>) = 3 [pid 20085] pipe2( [pid 20084] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20082] <... futex resumed>) = 1 [pid 20081] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20080] <... futex resumed>) = 0 [pid 20086] write(3, "1000", 4 [pid 20085] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20084] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20082] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20080] exit_group(0 [pid 20086] <... write resumed>) = 4 [pid 20085] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20084] <... futex resumed>) = 1 [pid 20083] <... futex resumed>) = 0 [pid 20082] <... futex resumed>) = ? [pid 20080] <... exit_group resumed>) = ? [pid 20086] close(3 [pid 20085] <... futex resumed>) = 1 [pid 20084] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20083] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20082] +++ exited with 0 +++ [pid 20081] <... futex resumed>) = 0 [pid 20080] +++ exited with 0 +++ [pid 20086] <... close resumed>) = 0 [pid 20085] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20083] <... futex resumed>) = 0 [pid 20081] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20086] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20084] dup(4 [pid 20083] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20081] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20080, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20086] <... futex resumed>) = 0 [pid 20085] dup(4 [pid 20084] <... dup resumed>) = 5 [pid 20081] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20086] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20085] <... dup resumed>) = 5 [pid 20084] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20086] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20085] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20084] <... futex resumed>) = 1 [pid 20083] <... futex resumed>) = 0 [pid 20086] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20085] <... futex resumed>) = 1 [pid 20084] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20083] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20081] <... futex resumed>) = 0 [pid 20086] <... mprotect resumed>) = 0 [pid 20085] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20083] <... futex resumed>) = 0 [pid 20081] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20086] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20084] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20083] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20081] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20087 attached [pid 20085] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20081] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20087] set_robust_list(0x7f61a3ef39e0, 24 [pid 20086] <... clone resumed>, parent_tid=[20087], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20087 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20086] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 20086] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20086] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20087] <... set_robust_list resumed>) = 0 [pid 20087] mkdir("./file0", 0777./strace-static-x86_64: Process 20088 attached [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20088 [pid 20088] set_robust_list(0x555556ba76e0, 24 [pid 20087] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20088] <... set_robust_list resumed>) = 0 [pid 20087] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20088] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20087] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20086] <... futex resumed>) = 0 [pid 20087] pipe2( [pid 20086] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20087] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20086] <... futex resumed>) = 0 [pid 20088] <... prctl resumed>) = 0 [pid 20087] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20086] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20087] <... futex resumed>) = 0 [pid 20086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20088] setpgid(0, 0 [pid 20086] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20088] <... setpgid resumed>) = 0 [pid 20087] dup(4 [pid 20086] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20087] <... dup resumed>) = 5 [pid 20087] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20086] <... futex resumed>) = 0 [pid 20087] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20086] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20088] <... openat resumed>) = 3 [pid 20087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20086] <... futex resumed>) = 0 [pid 20087] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20086] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20088] write(3, "1000", 4 [pid 20085] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20088] <... write resumed>) = 4 [pid 20085] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20088] close(3 [pid 20085] <... futex resumed>) = 1 [pid 20088] <... close resumed>) = 0 [pid 20085] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20088] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20084] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20081] <... futex resumed>) = 0 [pid 20081] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20088] <... futex resumed>) = 0 [pid 20085] <... futex resumed>) = 0 [pid 20084] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20081] <... futex resumed>) = 1 [pid 20088] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20085] write(5, NULL, 176 [pid 20084] <... futex resumed>) = 1 [pid 20083] <... futex resumed>) = 0 [pid 20081] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20088] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20085] <... write resumed>) = -1 EFAULT (Bad address) [pid 20084] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20083] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20088] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20085] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20083] <... futex resumed>) = 0 [pid 20088] <... mprotect resumed>) = 0 [pid 20085] <... futex resumed>) = 1 [pid 20084] write(5, NULL, 176 [pid 20083] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20081] <... futex resumed>) = 0 [pid 20088] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20085] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20084] <... write resumed>) = -1 EFAULT (Bad address) [pid 20081] exit_group(0 [pid 20088] <... clone resumed>, parent_tid=[20089], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20089 [pid 20085] <... futex resumed>) = ? [pid 20084] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20081] <... exit_group resumed>) = ? [pid 20088] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20085] +++ exited with 0 +++ [pid 20084] <... futex resumed>) = 1 [pid 20083] <... futex resumed>) = 0 [pid 20088] <... futex resumed>) = 0 [pid 20081] +++ exited with 0 +++ [pid 20083] exit_group(0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20081, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20088] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20083] <... exit_group resumed>) = ? [pid 20084] +++ exited with 0 +++ ./strace-static-x86_64: Process 20089 attached [pid 20083] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20083, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20089] set_robust_list(0x7f61a3ef39e0, 24 [pid 20087] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20089] <... set_robust_list resumed>) = 0 [pid 20087] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20089] mkdir("./file0", 0777 [pid 20087] <... futex resumed>) = 1 [pid 20086] <... futex resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20089] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20087] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20086] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20089] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20086] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20089] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20087] write(5, NULL, 176 [pid 20086] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 20089] <... futex resumed>) = 1 [pid 20088] <... futex resumed>) = 0 [pid 20087] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20089] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20088] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20087] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20088] <... futex resumed>) = 0 [pid 20087] <... futex resumed>) = 1 [pid 20086] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] close(3 [pid 20089] pipe2( [pid 20088] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20087] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20086] exit_group(0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... close resumed>) = 0 [pid 20089] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20087] <... futex resumed>) = ? [pid 20086] <... exit_group resumed>) = ? [pid 3606] close(3 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20089] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20087] +++ exited with 0 +++ [pid 20089] <... futex resumed>) = 1 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20090 ./strace-static-x86_64: Process 20090 attached [pid 20089] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20088] <... futex resumed>) = 0 [pid 20086] +++ exited with 0 +++ [pid 3606] <... close resumed>) = 0 [pid 20090] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20090] setpgid(0, 0) = 0 [pid 20090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20088] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20086, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20090] write(3, "1000", 4 [pid 20089] <... futex resumed>) = 0 [pid 20088] <... futex resumed>) = 1 [pid 20090] <... write resumed>) = 4 [pid 20089] dup(4 [pid 20088] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20091 attached [pid 20089] <... dup resumed>) = 5 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20091 [pid 20091] set_robust_list(0x555556ba76e0, 24 [pid 20090] close(3 [pid 20089] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20090] <... close resumed>) = 0 [pid 20089] <... futex resumed>) = 1 [pid 20088] <... futex resumed>) = 0 [pid 20090] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20089] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20088] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20090] <... futex resumed>) = 0 [pid 20089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20088] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20089] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20090] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20088] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20090] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3607] close(3 [pid 20090] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20092], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20092 [pid 20090] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3607] <... close resumed>) = 0 [pid 20090] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20092 attached [pid 20092] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20092] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20092] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20093 [pid 20092] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20090] <... futex resumed>) = 0 [pid 20090] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20090] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20092] <... futex resumed>) = 1 [pid 20092] pipe2([3, 4], 0) = 0 [pid 20092] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20090] <... futex resumed>) = 0 [pid 20090] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20090] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20092] <... futex resumed>) = 1 [pid 20092] dup(4) = 5 [pid 20092] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20090] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20093 attached [pid 20092] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20090] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20093] set_robust_list(0x555556ba76e0, 24 [pid 20090] <... futex resumed>) = 0 [pid 20093] <... set_robust_list resumed>) = 0 [pid 20090] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20093] setpgid(0, 0) = 0 [pid 20093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20093] write(3, "1000", 4) = 4 [pid 20093] close(3) = 0 [pid 20093] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20093] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20093] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20093] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20094], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20094 [pid 20093] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20093] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20094 attached [pid 20094] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20094] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20094] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20094] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20093] <... futex resumed>) = 0 [pid 20093] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20094] <... futex resumed>) = 1 [pid 20093] <... futex resumed>) = 0 [pid 20091] <... set_robust_list resumed>) = 0 [pid 20089] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20089] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20091] <... prctl resumed>) = 0 [pid 20089] <... futex resumed>) = 1 [pid 20088] <... futex resumed>) = 0 [pid 20091] setpgid(0, 0 [pid 20089] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20088] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20091] <... setpgid resumed>) = 0 [pid 20089] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20088] <... futex resumed>) = 0 [pid 20091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20089] write(5, NULL, 176 [pid 20088] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20091] <... openat resumed>) = 3 [pid 20089] <... write resumed>) = -1 EFAULT (Bad address) [pid 20091] write(3, "1000", 4 [pid 20089] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20091] <... write resumed>) = 4 [pid 20089] <... futex resumed>) = 1 [pid 20088] <... futex resumed>) = 0 [pid 20091] close(3 [pid 20089] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20088] exit_group(0 [pid 20093] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20091] <... close resumed>) = 0 [pid 20089] <... futex resumed>) = ? [pid 20088] <... exit_group resumed>) = ? [pid 20094] pipe2([3, 4], 0) = 0 [pid 20091] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20089] +++ exited with 0 +++ [pid 20088] +++ exited with 0 +++ [pid 20094] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20091] <... futex resumed>) = 0 [pid 20094] <... futex resumed>) = 1 [pid 20093] <... futex resumed>) = 0 [pid 20091] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20088, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20094] dup(4 [pid 20093] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20091] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20094] <... dup resumed>) = 5 [pid 20093] <... futex resumed>) = 0 [pid 20091] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] <... openat resumed>) = 3 [pid 20091] <... mprotect resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20094] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20093] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20091] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20094] <... futex resumed>) = 0 [pid 20093] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] close(3 [pid 20094] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20093] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20092] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20091] <... clone resumed>, parent_tid=[20095], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20095 [pid 3601] <... close resumed>) = 0 ./strace-static-x86_64: Process 20095 attached [pid 20094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20093] <... futex resumed>) = 0 [pid 20092] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20091] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20095] set_robust_list(0x7f61a3ef39e0, 24 [pid 20094] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20093] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20092] <... futex resumed>) = 1 [pid 20091] <... futex resumed>) = 0 [pid 20090] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20096 attached [pid 20092] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20091] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20090] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20096] set_robust_list(0x555556ba76e0, 24 [pid 20092] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20090] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20096 [pid 20096] <... set_robust_list resumed>) = 0 [pid 20096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20092] write(5, NULL, 176 [pid 20090] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20096] setpgid(0, 0 [pid 20092] <... write resumed>) = -1 EFAULT (Bad address) [pid 20096] <... setpgid resumed>) = 0 [pid 20092] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20092] <... futex resumed>) = 1 [pid 20095] <... set_robust_list resumed>) = 0 [pid 20090] <... futex resumed>) = 0 [pid 20094] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20096] <... openat resumed>) = 3 [pid 20095] mkdir("./file0", 0777 [pid 20094] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20092] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20090] exit_group(0 [pid 20096] write(3, "1000", 4 [pid 20095] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20094] <... futex resumed>) = 1 [pid 20093] <... futex resumed>) = 0 [pid 20092] <... futex resumed>) = ? [pid 20090] <... exit_group resumed>) = ? [pid 20096] <... write resumed>) = 4 [pid 20095] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20094] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20093] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20092] +++ exited with 0 +++ [pid 20096] close(3 [pid 20095] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20093] <... futex resumed>) = 0 [pid 20090] +++ exited with 0 +++ [pid 20096] <... close resumed>) = 0 [pid 20095] <... futex resumed>) = 1 [pid 20094] write(5, NULL, 176 [pid 20093] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20091] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20090, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20096] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20095] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20094] <... write resumed>) = -1 EFAULT (Bad address) [pid 20091] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20096] <... futex resumed>) = 0 [pid 20095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20094] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20091] <... futex resumed>) = 0 [pid 20096] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20095] pipe2( [pid 20094] <... futex resumed>) = 1 [pid 20093] <... futex resumed>) = 0 [pid 20091] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20096] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20095] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20094] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20093] exit_group(0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20096] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20095] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20094] <... futex resumed>) = ? [pid 20093] <... exit_group resumed>) = ? [pid 20096] <... mprotect resumed>) = 0 [pid 20095] <... futex resumed>) = 1 [pid 20094] +++ exited with 0 +++ [pid 20091] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20096] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20095] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20093] +++ exited with 0 +++ [pid 20091] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20097 attached [pid 20095] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20091] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20097] set_robust_list(0x7f61a3ef39e0, 24 [pid 20096] <... clone resumed>, parent_tid=[20097], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20097 [pid 20095] dup(4 [pid 20091] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20093, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] close(3 [pid 20097] <... set_robust_list resumed>) = 0 [pid 20096] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20095] <... dup resumed>) = 5 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3604] <... close resumed>) = 0 [pid 20096] <... futex resumed>) = 0 [pid 20095] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20097] mkdir("./file0", 0777 [pid 20096] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20095] <... futex resumed>) = 1 [pid 20091] <... futex resumed>) = 0 [pid 20097] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20091] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20097] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20095] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20091] <... futex resumed>) = 0 [pid 20091] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20097] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20096] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20097] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20098 attached [pid 20096] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20097] <... futex resumed>) = 0 [pid 20096] <... futex resumed>) = 1 [pid 3607] <... openat resumed>) = 3 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20098 [pid 20098] set_robust_list(0x555556ba76e0, 24 [pid 20097] pipe2( [pid 20098] <... set_robust_list resumed>) = 0 [pid 20097] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20097] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20098] <... prctl resumed>) = 0 [pid 20097] <... futex resumed>) = 0 [pid 20098] setpgid(0, 0 [pid 20097] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20098] <... setpgid resumed>) = 0 [pid 20096] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20096] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20097] <... futex resumed>) = 0 [pid 20096] <... futex resumed>) = 1 [pid 3607] close(3 [pid 20098] <... openat resumed>) = 3 [pid 20097] dup(4 [pid 20096] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 20098] write(3, "1000", 4 [pid 20097] <... dup resumed>) = 5 [pid 20098] <... write resumed>) = 4 [pid 20097] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20098] close(3 [pid 20097] <... futex resumed>) = 0 [pid 20096] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20098] <... close resumed>) = 0 [pid 20097] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20096] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20098] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20096] <... futex resumed>) = 0 [pid 20098] <... futex resumed>) = 0 [pid 20097] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20096] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20099 attached [pid 20098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20099 [pid 20099] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20099] setpgid(0, 0) = 0 [pid 20099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20099] write(3, "1000", 4) = 4 [pid 20099] close(3 [pid 20098] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20098] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20099] <... close resumed>) = 0 [pid 20098] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20100 attached [pid 20099] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20098] <... clone resumed>, parent_tid=[20100], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20100 [pid 20100] set_robust_list(0x7f61a3ef39e0, 24 [pid 20099] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20100] <... set_robust_list resumed>) = 0 [pid 20099] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20098] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20100] mkdir("./file0", 0777 [pid 20099] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20098] <... futex resumed>) = 0 [pid 20099] <... mprotect resumed>) = 0 [pid 20100] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20098] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20100] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20099] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20100] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20101 attached ) = 1 [pid 20098] <... futex resumed>) = 0 [pid 20101] set_robust_list(0x7f61a3ef39e0, 24 [pid 20099] <... clone resumed>, parent_tid=[20101], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20101 [pid 20098] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20101] <... set_robust_list resumed>) = 0 [pid 20099] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20098] <... futex resumed>) = 0 [pid 20101] mkdir("./file0", 0777 [pid 20100] pipe2( [pid 20099] <... futex resumed>) = 0 [pid 20098] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20101] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20100] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20099] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20101] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20100] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20101] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20100] <... futex resumed>) = 1 [pid 20099] <... futex resumed>) = 0 [pid 20098] <... futex resumed>) = 0 [pid 20101] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20100] dup(4 [pid 20099] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20098] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20099] <... futex resumed>) = 0 [pid 20091] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 20095] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20101] pipe2( [pid 20099] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20098] <... futex resumed>) = 0 [pid 20091] futex(0x7f61a3fcb4dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20101] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20091] <... futex resumed>) = 0 [pid 20097] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20101] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20100] <... dup resumed>) = 5 [pid 20098] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20097] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20095] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20091] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20101] <... futex resumed>) = 1 [pid 20100] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20099] <... futex resumed>) = 0 [pid 20098] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20097] <... futex resumed>) = 1 [pid 20096] <... futex resumed>) = 0 [pid 20095] <... futex resumed>) = 0 [pid 20091] <... mmap resumed>) = 0x7f61a3eb2000 [pid 20101] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20100] <... futex resumed>) = 0 [pid 20099] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20098] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20097] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20096] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20095] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20091] mprotect(0x7f61a3eb3000, 131072, PROT_READ|PROT_WRITE [pid 20101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20100] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20099] <... futex resumed>) = 0 [pid 20098] <... futex resumed>) = 0 [pid 20097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20096] <... futex resumed>) = 0 [pid 20091] <... mprotect resumed>) = 0 [pid 20101] dup(4 [pid 20099] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20098] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20097] write(5, NULL, 176 [pid 20096] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20091] clone(child_stack=0x7f61a3ed22f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20101] <... dup resumed>) = 5 [pid 20097] <... write resumed>) = -1 EFAULT (Bad address) [pid 20101] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20097] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20091] <... clone resumed>, parent_tid=[20102], tls=0x7f61a3ed2700, child_tidptr=0x7f61a3ed29d0) = 20102 [pid 20101] <... futex resumed>) = 1 [pid 20099] <... futex resumed>) = 0 [pid 20097] <... futex resumed>) = 1 [pid 20096] <... futex resumed>) = 0 [pid 20091] futex(0x7f61a3fcb4d8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20102 attached [pid 20101] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20099] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20097] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20096] exit_group(0 [pid 20091] <... futex resumed>) = 0 [pid 20102] set_robust_list(0x7f61a3ed29e0, 24 [pid 20101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20100] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20099] <... futex resumed>) = 0 [pid 20097] <... futex resumed>) = ? [pid 20096] <... exit_group resumed>) = ? [pid 20091] futex(0x7f61a3fcb4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20102] <... set_robust_list resumed>) = 0 [pid 20101] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20100] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20099] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20097] +++ exited with 0 +++ [pid 20102] write(5, NULL, 176 [pid 20100] <... futex resumed>) = 1 [pid 20098] <... futex resumed>) = 0 [pid 20096] +++ exited with 0 +++ [pid 20102] <... write resumed>) = -1 EFAULT (Bad address) [pid 20100] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20098] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20102] futex(0x7f61a3fcb4dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20098] <... futex resumed>) = 0 [pid 20102] <... futex resumed>) = 1 [pid 20100] write(5, NULL, 176 [pid 20098] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20091] <... futex resumed>) = 0 [pid 20102] futex(0x7f61a3fcb4d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20100] <... write resumed>) = -1 EFAULT (Bad address) [pid 20100] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20091] exit_group(0 [pid 20102] <... futex resumed>) = ? [pid 20100] <... futex resumed>) = 1 [pid 20098] <... futex resumed>) = 0 [pid 20095] <... futex resumed>) = ? [pid 20091] <... exit_group resumed>) = ? [pid 20102] +++ exited with 0 +++ [pid 20100] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20098] exit_group(0 [pid 20095] +++ exited with 0 +++ [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20096, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20100] <... futex resumed>) = ? [pid 20098] <... exit_group resumed>) = ? [pid 20100] +++ exited with 0 +++ [pid 20098] +++ exited with 0 +++ [pid 20091] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20098, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20091, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 3601] <... openat resumed>) = 3 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20101] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 20101] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20099] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3601] close(3 [pid 20099] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 20099] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20099] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... openat resumed>) = 3 [pid 20101] write(5, NULL, 176) = -1 EFAULT (Bad address) [pid 20101] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20099] <... futex resumed>) = 0 [pid 20101] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20099] exit_group(0 [pid 3606] close(3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20101] <... futex resumed>) = ? [pid 20099] <... exit_group resumed>) = ? [pid 20101] +++ exited with 0 +++ [pid 20099] +++ exited with 0 +++ [pid 3606] <... close resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20103 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20099, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] close(3./strace-static-x86_64: Process 20103 attached [pid 20103] set_robust_list(0x555556ba76e0, 24 [pid 3604] <... close resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20104 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... openat resumed>) = 3 [pid 20103] <... set_robust_list resumed>) = 0 [pid 20103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20103] setpgid(0, 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20105 [pid 20103] <... setpgid resumed>) = 0 [pid 20103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20103] write(3, "1000", 4 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20104 attached [pid 20103] <... write resumed>) = 4 [pid 20104] set_robust_list(0x555556ba76e0, 24 [pid 20103] close(3 [pid 20104] <... set_robust_list resumed>) = 0 [pid 20103] <... close resumed>) = 0 [pid 20104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20103] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20106 [pid 20104] <... prctl resumed>) = 0 [pid 20103] <... futex resumed>) = 0 [pid 20104] setpgid(0, 0 [pid 20103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 20106 attached [pid 20104] <... setpgid resumed>) = 0 [pid 20103] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20106] set_robust_list(0x555556ba76e0, 24 [pid 20104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20103] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20106] <... set_robust_list resumed>) = 0 [pid 20104] <... openat resumed>) = 3 [pid 20103] <... mprotect resumed>) = 0 [pid 20106] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20104] write(3, "1000", 4 [pid 20103] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20106] <... prctl resumed>) = 0 [pid 20104] <... write resumed>) = 4 [pid 20106] setpgid(0, 0 [pid 20104] close(3 [pid 20103] <... clone resumed>, parent_tid=[20107], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20107 [pid 20106] <... setpgid resumed>) = 0 [pid 20104] <... close resumed>) = 0 [pid 20103] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20104] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20103] <... futex resumed>) = 0 [pid 20106] <... openat resumed>) = 3 [pid 20104] <... futex resumed>) = 0 [pid 20103] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20106] write(3, "1000", 4 [pid 20104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20106] <... write resumed>) = 4 [pid 20104] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20106] close(3 [pid 20104] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 20105 attached [pid 20106] <... close resumed>) = 0 [pid 20104] <... mprotect resumed>) = 0 [pid 20106] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20104] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20106] <... futex resumed>) = 0 [pid 20105] set_robust_list(0x555556ba76e0, 24 [pid 20106] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20104] <... clone resumed>, parent_tid=[20108], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20108 [pid 20106] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20105] <... set_robust_list resumed>) = 0 [pid 20104] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20106] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20104] <... futex resumed>) = 0 [pid 20106] <... mprotect resumed>) = 0 [pid 20105] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20104] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20106] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20105] <... prctl resumed>) = 0 [pid 20106] <... clone resumed>, parent_tid=[20109], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20109 [pid 20106] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20105] setpgid(0, 0 [pid 20106] <... futex resumed>) = 0 [pid 20106] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20105] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 20108 attached [pid 20108] set_robust_list(0x7f61a3ef39e0, 24 [pid 20105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20108] <... set_robust_list resumed>) = 0 [pid 20108] mkdir("./file0", 0777 [pid 20105] <... openat resumed>) = 3 [pid 20108] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20105] write(3, "1000", 4 [pid 20108] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20105] <... write resumed>) = 4 [pid 20105] close(3./strace-static-x86_64: Process 20109 attached [pid 20108] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20109] set_robust_list(0x7f61a3ef39e0, 24 [pid 20108] <... futex resumed>) = 1 [pid 20104] <... futex resumed>) = 0 [pid 20109] <... set_robust_list resumed>) = 0 [pid 20108] pipe2( [pid 20104] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20109] mkdir("./file0", 0777 [pid 20108] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20104] <... futex resumed>) = 0 [pid 20109] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20108] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20104] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20109] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20108] <... futex resumed>) = 0 [pid 20104] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20109] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20108] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20104] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20109] <... futex resumed>) = 1 [pid 20108] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20106] <... futex resumed>) = 0 [pid 20104] <... futex resumed>) = 0 [pid 20109] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20108] dup(4 [pid 20106] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20104] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20109] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20108] <... dup resumed>) = 5 [pid 20106] <... futex resumed>) = 0 [pid 20109] pipe2( [pid 20108] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20106] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20109] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20108] <... futex resumed>) = 1 [pid 20104] <... futex resumed>) = 0 [pid 20109] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20108] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20104] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20109] <... futex resumed>) = 1 [pid 20108] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20106] <... futex resumed>) = 0 [pid 20105] <... close resumed>) = 0 [pid 20104] <... futex resumed>) = 0 [pid 20109] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20108] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20106] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20104] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20109] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20106] <... futex resumed>) = 0 [pid 20105] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20109] dup(4 [pid 20106] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20109] <... dup resumed>) = 5 [pid 20105] <... futex resumed>) = 0 [pid 20109] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20106] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20107 attached [pid 20109] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20106] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20105] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20109] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20106] <... futex resumed>) = 0 [pid 20109] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20107] set_robust_list(0x7f61a3ef39e0, 24 [pid 20106] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20105] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20107] <... set_robust_list resumed>) = 0 [pid 20105] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20107] mkdir("./file0", 0777 [pid 20105] <... mprotect resumed>) = 0 [pid 20107] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20105] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20108] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20107] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 20110 attached [pid 20108] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20104] <... futex resumed>) = 0 [pid 20108] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20107] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20104] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20105] <... clone resumed>, parent_tid=[20110], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20110 [pid 20108] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20104] <... futex resumed>) = 0 [pid 20108] write(5, NULL, 176 [pid 20104] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20108] <... write resumed>) = -1 EFAULT (Bad address) [pid 20108] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20104] <... futex resumed>) = 0 [pid 20108] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20104] exit_group(0 [pid 20108] <... futex resumed>) = ? [pid 20104] <... exit_group resumed>) = ? [pid 20110] set_robust_list(0x7f61a3ef39e0, 24 [pid 20109] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20108] +++ exited with 0 +++ [pid 20107] <... futex resumed>) = 1 [pid 20105] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20104] +++ exited with 0 +++ [pid 20103] <... futex resumed>) = 0 [pid 20110] <... set_robust_list resumed>) = 0 [pid 20109] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20107] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20105] <... futex resumed>) = 0 [pid 20103] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20109] <... futex resumed>) = 1 [pid 20107] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20106] <... futex resumed>) = 0 [pid 20105] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20103] <... futex resumed>) = 0 [pid 20110] mkdir("./file0", 0777 [pid 20109] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20107] pipe2( [pid 20106] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20103] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20110] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20109] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20107] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20106] <... futex resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20110] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20109] write(5, NULL, 176 [pid 20107] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20106] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20110] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20109] <... write resumed>) = -1 EFAULT (Bad address) [pid 20107] <... futex resumed>) = 1 [pid 20103] <... futex resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20110] <... futex resumed>) = 1 [pid 20109] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20107] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20105] <... futex resumed>) = 0 [pid 20103] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20110] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20109] <... futex resumed>) = 1 [pid 20107] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20106] <... futex resumed>) = 0 [pid 20105] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20103] <... futex resumed>) = 0 [pid 20110] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20109] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20107] dup(4 [pid 20106] exit_group(0 [pid 20105] <... futex resumed>) = 0 [pid 20103] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20110] pipe2( [pid 20109] <... futex resumed>) = ? [pid 20107] <... dup resumed>) = 5 [pid 20106] <... exit_group resumed>) = ? [pid 20105] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20110] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20109] +++ exited with 0 +++ [pid 20107] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20106] +++ exited with 0 +++ [pid 3606] <... openat resumed>) = 3 [pid 20110] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20107] <... futex resumed>) = 1 [pid 20103] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20106, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20110] <... futex resumed>) = 1 [pid 20107] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20105] <... futex resumed>) = 0 [pid 20103] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20110] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20107] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20105] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20103] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20110] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20107] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20105] <... futex resumed>) = 0 [pid 20103] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20110] dup(4 [pid 20105] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... close resumed>) = 0 [pid 20110] <... dup resumed>) = 5 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20110] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20105] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20110] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20111 [pid 20105] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20110] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20105] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20110] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20105] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3./strace-static-x86_64: Process 20111 attached ) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20111] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20111] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20112 [pid 20111] <... prctl resumed>) = 0 [pid 20111] setpgid(0, 0) = 0 [pid 20111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20111] write(3, "1000", 4) = 4 [pid 20111] close(3) = 0 ./strace-static-x86_64: Process 20112 attached [pid 20111] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20112] set_robust_list(0x555556ba76e0, 24 [pid 20111] <... futex resumed>) = 0 [pid 20112] <... set_robust_list resumed>) = 0 [pid 20111] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20111] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20112] <... prctl resumed>) = 0 [pid 20111] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20112] setpgid(0, 0 [pid 20111] <... mprotect resumed>) = 0 [pid 20112] <... setpgid resumed>) = 0 [pid 20111] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20111] <... clone resumed>, parent_tid=[20113], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20113 [pid 20112] write(3, "1000", 4 [pid 20111] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20112] <... write resumed>) = 4 [pid 20111] <... futex resumed>) = 0 [pid 20112] close(3 [pid 20111] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20112] <... close resumed>) = 0 [pid 20112] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20112] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20112] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20114], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20114 [pid 20112] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20112] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20114 attached [pid 20114] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20114] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20114] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20114] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20112] <... futex resumed>) = 0 [pid 20112] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20112] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20114] <... futex resumed>) = 1 [pid 20114] pipe2([3, 4], 0) = 0 [pid 20114] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20112] <... futex resumed>) = 0 [pid 20112] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20112] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20114] <... futex resumed>) = 1 [pid 20114] dup(4) = 5 [pid 20114] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20113 attached [pid 20107] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20107] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20103] <... futex resumed>) = 0 [pid 20113] set_robust_list(0x7f61a3ef39e0, 24 [pid 20107] write(5, NULL, 176 [pid 20103] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20107] <... write resumed>) = -1 EFAULT (Bad address) [pid 20103] <... futex resumed>) = 0 [pid 20107] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20103] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20107] <... futex resumed>) = 0 [pid 20103] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20114] <... futex resumed>) = 1 [pid 20113] <... set_robust_list resumed>) = 0 [pid 20112] <... futex resumed>) = 0 [pid 20110] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20107] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20103] exit_group(0 [pid 20114] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20113] mkdir("./file0", 0777 [pid 20112] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20110] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20107] <... futex resumed>) = ? [pid 20103] <... exit_group resumed>) = ? [pid 20113] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20112] <... futex resumed>) = 0 [pid 20110] <... futex resumed>) = 1 [pid 20107] +++ exited with 0 +++ [pid 20105] <... futex resumed>) = 0 [pid 20113] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20112] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20110] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20105] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20103] +++ exited with 0 +++ [pid 20113] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20110] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20105] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20103, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20113] <... futex resumed>) = 1 [pid 20111] <... futex resumed>) = 0 [pid 20110] write(5, NULL, 176 [pid 20105] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20113] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20111] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20110] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] <... restart_syscall resumed>) = 0 [pid 20110] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20105] <... futex resumed>) = 0 [pid 20110] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20105] exit_group(0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20110] <... futex resumed>) = ? [pid 20105] <... exit_group resumed>) = ? [pid 3601] <... openat resumed>) = 3 [pid 20110] +++ exited with 0 +++ [pid 20105] +++ exited with 0 +++ [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20105, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] close(3 [pid 20113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20111] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20113] pipe2( [pid 20111] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20113] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20113] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20115 [pid 20113] <... futex resumed>) = 1 [pid 20111] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20116 [pid 20113] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20111] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20111] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20115 attached [pid 20113] dup(4 [pid 20111] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20115] set_robust_list(0x555556ba76e0, 24 [pid 20114] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20113] <... dup resumed>) = 5 ./strace-static-x86_64: Process 20116 attached [pid 20115] <... set_robust_list resumed>) = 0 [pid 20114] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20113] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20116] set_robust_list(0x555556ba76e0, 24 [pid 20115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20114] <... futex resumed>) = 1 [pid 20112] <... futex resumed>) = 0 [pid 20116] <... set_robust_list resumed>) = 0 [pid 20115] <... prctl resumed>) = 0 [pid 20116] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20115] setpgid(0, 0 [pid 20116] <... prctl resumed>) = 0 [pid 20115] <... setpgid resumed>) = 0 [pid 20116] setpgid(0, 0 [pid 20115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20114] write(5, NULL, 176 [pid 20113] <... futex resumed>) = 1 [pid 20112] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20111] <... futex resumed>) = 0 [pid 20116] <... setpgid resumed>) = 0 [pid 20115] <... openat resumed>) = 3 [pid 20114] <... write resumed>) = -1 EFAULT (Bad address) [pid 20113] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20112] <... futex resumed>) = 0 [pid 20111] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20115] write(3, "1000", 4 [pid 20114] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20112] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20111] <... futex resumed>) = 0 [pid 20114] <... futex resumed>) = 0 [pid 20113] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20112] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20111] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20116] <... openat resumed>) = 3 [pid 20115] <... write resumed>) = 4 [pid 20114] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20112] exit_group(0 [pid 20116] write(3, "1000", 4 [pid 20115] close(3 [pid 20114] <... futex resumed>) = ? [pid 20112] <... exit_group resumed>) = ? [pid 20116] <... write resumed>) = 4 [pid 20115] <... close resumed>) = 0 [pid 20114] +++ exited with 0 +++ [pid 20116] close(3 [pid 20115] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20112] +++ exited with 0 +++ [pid 20116] <... close resumed>) = 0 [pid 20115] <... futex resumed>) = 0 [pid 20116] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20115] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20113] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20112, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20116] <... futex resumed>) = 0 [pid 20115] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20113] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20116] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20115] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20113] <... futex resumed>) = 1 [pid 20111] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20116] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20115] <... mprotect resumed>) = 0 [pid 20113] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20111] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20116] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20115] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20111] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20117 attached [pid 20116] <... mprotect resumed>) = 0 [pid 20113] write(5, NULL, 176 [pid 20111] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] close(3 [pid 20117] set_robust_list(0x7f61a3ef39e0, 24 [pid 20116] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20115] <... clone resumed>, parent_tid=[20117], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20117 [pid 20113] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] <... close resumed>) = 0 [pid 20117] <... set_robust_list resumed>) = 0 [pid 20115] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20113] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20117] mkdir("./file0", 0777 [pid 20116] <... clone resumed>, parent_tid=[20118], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20118 [pid 20115] <... futex resumed>) = 0 [pid 20113] <... futex resumed>) = 1 [pid 20111] <... futex resumed>) = 0 [pid 20117] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20116] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20115] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20113] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20111] exit_group(0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20119 [pid 20117] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20116] <... futex resumed>) = 0 [pid 20113] <... futex resumed>) = ? [pid 20111] <... exit_group resumed>) = ? [pid 20117] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20116] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20113] +++ exited with 0 +++ [pid 20117] <... futex resumed>) = 1 [pid 20115] <... futex resumed>) = 0 [pid 20117] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20115] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20117] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20115] <... futex resumed>) = 0 [pid 20111] +++ exited with 0 +++ [pid 20117] pipe2( [pid 20115] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20111, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20117] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20117] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20119 attached ) = 1 [pid 20115] <... futex resumed>) = 0 [pid 20119] set_robust_list(0x555556ba76e0, 24 [pid 20117] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20115] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20119] <... set_robust_list resumed>) = 0 [pid 20117] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20115] <... futex resumed>) = 0 [pid 20119] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20117] dup(4 [pid 20115] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20119] <... prctl resumed>) = 0 [pid 20117] <... dup resumed>) = 5 ./strace-static-x86_64: Process 20118 attached [pid 20119] setpgid(0, 0 [pid 20117] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20119] <... setpgid resumed>) = 0 [pid 20117] <... futex resumed>) = 1 [pid 20115] <... futex resumed>) = 0 [pid 20119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20118] set_robust_list(0x7f61a3ef39e0, 24 [pid 20117] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20115] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 20119] <... openat resumed>) = 3 [pid 20118] <... set_robust_list resumed>) = 0 [pid 20117] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20115] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20119] write(3, "1000", 4 [pid 20117] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20115] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20118] mkdir("./file0", 0777 [pid 20119] <... write resumed>) = 4 [pid 3606] close(3 [pid 20119] close(3 [pid 3606] <... close resumed>) = 0 [pid 20119] <... close resumed>) = 0 [pid 20119] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20119] <... futex resumed>) = 0 [pid 20119] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20119] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20119] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20120 [pid 20119] <... clone resumed>, parent_tid=[20121], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20121 [pid 20118] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20119] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20118] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20119] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20118] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20120 attached ) = 1 [pid 20116] <... futex resumed>) = 0 [pid 20118] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20116] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20121 attached [pid 20120] set_robust_list(0x555556ba76e0, 24 [pid 20118] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20116] <... futex resumed>) = 0 [pid 20121] set_robust_list(0x7f61a3ef39e0, 24 [pid 20120] <... set_robust_list resumed>) = 0 [pid 20118] pipe2( [pid 20117] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20116] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20121] <... set_robust_list resumed>) = 0 [pid 20120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20118] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20117] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20121] mkdir("./file0", 0777 [pid 20120] <... prctl resumed>) = 0 [pid 20118] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20117] <... futex resumed>) = 1 [pid 20115] <... futex resumed>) = 0 [pid 20121] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20120] setpgid(0, 0 [pid 20118] <... futex resumed>) = 1 [pid 20117] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20116] <... futex resumed>) = 0 [pid 20115] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20121] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20120] <... setpgid resumed>) = 0 [pid 20118] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20117] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20116] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20115] <... futex resumed>) = 0 [pid 20121] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20118] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20117] write(5, NULL, 176 [pid 20116] <... futex resumed>) = 0 [pid 20115] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20121] <... futex resumed>) = 1 [pid 20120] <... openat resumed>) = 3 [pid 20119] <... futex resumed>) = 0 [pid 20118] dup(4 [pid 20121] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20120] write(3, "1000", 4 [pid 20119] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20118] <... dup resumed>) = 5 [pid 20117] <... write resumed>) = -1 EFAULT (Bad address) [pid 20116] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20120] <... write resumed>) = 4 [pid 20119] <... futex resumed>) = 0 [pid 20118] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20117] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20116] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20121] pipe2( [pid 20120] close(3 [pid 20119] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20118] <... futex resumed>) = 0 [pid 20117] <... futex resumed>) = 1 [pid 20116] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20115] <... futex resumed>) = 0 [pid 20121] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20120] <... close resumed>) = 0 [pid 20118] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20117] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20116] <... futex resumed>) = 0 [pid 20115] exit_group(0 [pid 20121] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20120] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20117] <... futex resumed>) = ? [pid 20116] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20115] <... exit_group resumed>) = ? [pid 20121] <... futex resumed>) = 1 [pid 20120] <... futex resumed>) = 0 [pid 20119] <... futex resumed>) = 0 [pid 20117] +++ exited with 0 +++ [pid 20115] +++ exited with 0 +++ [pid 20119] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20115, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20119] <... futex resumed>) = 0 [pid 20119] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3 [pid 20121] dup(4 [pid 20120] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] <... close resumed>) = 0 [pid 20121] <... dup resumed>) = 5 [pid 20120] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20121] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20120] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20118] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20121] <... futex resumed>) = 1 [pid 20120] <... mprotect resumed>) = 0 [pid 20119] <... futex resumed>) = 0 [pid 20118] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20122 [pid 20121] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20120] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20119] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20118] <... futex resumed>) = 1 [pid 20116] <... futex resumed>) = 0 [pid 20121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20119] <... futex resumed>) = 0 [pid 20118] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20116] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20122 attached [pid 20121] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20120] <... clone resumed>, parent_tid=[20123], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20123 [pid 20119] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20118] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20116] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20123 attached [pid 20120] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20118] write(5, NULL, 176 [pid 20116] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20118] <... write resumed>) = -1 EFAULT (Bad address) [pid 20120] <... futex resumed>) = 0 [pid 20120] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20118] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20116] <... futex resumed>) = 0 [pid 20123] set_robust_list(0x7f61a3ef39e0, 24 [pid 20122] set_robust_list(0x555556ba76e0, 24 [pid 20118] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20116] exit_group(0 [pid 20123] <... set_robust_list resumed>) = 0 [pid 20122] <... set_robust_list resumed>) = 0 [pid 20121] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20118] <... futex resumed>) = ? [pid 20116] <... exit_group resumed>) = ? [pid 20123] mkdir("./file0", 0777 [pid 20122] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20121] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20118] +++ exited with 0 +++ [pid 20116] +++ exited with 0 +++ [pid 20123] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20122] <... prctl resumed>) = 0 [pid 20121] <... futex resumed>) = 1 [pid 20119] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20116, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- [pid 20123] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20122] setpgid(0, 0 [pid 20121] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20119] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20123] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20122] <... setpgid resumed>) = 0 [pid 20121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20119] <... futex resumed>) = 0 [pid 20123] <... futex resumed>) = 1 [pid 20122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20121] write(5, NULL, 176 [pid 20120] <... futex resumed>) = 0 [pid 20119] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... restart_syscall resumed>) = 0 [pid 20123] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20122] <... openat resumed>) = 3 [pid 20121] <... write resumed>) = -1 EFAULT (Bad address) [pid 20120] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20122] write(3, "1000", 4 [pid 20121] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20120] <... futex resumed>) = 0 [pid 20123] pipe2( [pid 20122] <... write resumed>) = 4 [pid 20121] <... futex resumed>) = 1 [pid 20120] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20119] <... futex resumed>) = 0 [pid 20123] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20122] close(3 [pid 20121] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20119] exit_group(0 [pid 20123] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20122] <... close resumed>) = 0 [pid 20121] <... futex resumed>) = ? [pid 20119] <... exit_group resumed>) = ? [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20123] <... futex resumed>) = 1 [pid 20122] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20121] +++ exited with 0 +++ [pid 20120] <... futex resumed>) = 0 [pid 20123] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20122] <... futex resumed>) = 0 [pid 20120] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20122] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20120] <... futex resumed>) = 0 [pid 20123] dup(4 [pid 20122] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20120] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20119] +++ exited with 0 +++ [pid 3604] <... openat resumed>) = 3 [pid 20123] <... dup resumed>) = 5 [pid 20122] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20119, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20123] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20122] <... mprotect resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20123] <... futex resumed>) = 1 [pid 20122] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20120] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20123] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20120] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20122] <... clone resumed>, parent_tid=[20124], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20124 [pid 20120] <... futex resumed>) = 0 [pid 20123] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20122] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20120] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... close resumed>) = 0 ./strace-static-x86_64: Process 20124 attached [pid 20122] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20124] set_robust_list(0x7f61a3ef39e0, 24 [pid 20122] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] <... openat resumed>) = 3 [pid 20124] <... set_robust_list resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20125 ./strace-static-x86_64: Process 20125 attached [pid 20123] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20125] set_robust_list(0x555556ba76e0, 24 [pid 20123] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 20125] <... set_robust_list resumed>) = 0 [pid 20124] mkdir("./file0", 0777 [pid 20123] <... futex resumed>) = 1 [pid 20120] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20125] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20123] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20120] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20125] <... prctl resumed>) = 0 [pid 20123] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20120] <... futex resumed>) = 0 [pid 20125] setpgid(0, 0 [pid 20123] write(5, NULL, 176 [pid 20120] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20125] <... setpgid resumed>) = 0 [pid 20123] <... write resumed>) = -1 EFAULT (Bad address) [pid 20125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20123] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20125] <... openat resumed>) = 3 [pid 20123] <... futex resumed>) = 1 [pid 20120] <... futex resumed>) = 0 [pid 20125] write(3, "1000", 4 [pid 20123] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20120] exit_group(0 [pid 20125] <... write resumed>) = 4 [pid 20123] <... futex resumed>) = ? [pid 20120] <... exit_group resumed>) = ? [pid 20125] close(3 [pid 20123] +++ exited with 0 +++ [pid 20120] +++ exited with 0 +++ [pid 20125] <... close resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20120, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20125] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20125] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20125] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20124] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... openat resumed>) = 3 [pid 20125] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20125] <... mprotect resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20125] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] close(3 [pid 20124] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20126 [pid 3606] <... close resumed>) = 0 [pid 20125] <... clone resumed>, parent_tid=[20127], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20127 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20125] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20124] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20125] <... futex resumed>) = 0 [pid 20124] <... futex resumed>) = 1 [pid 20122] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20128 [pid 20125] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20124] pipe2( [pid 20122] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20126 attached ) = 0 [pid 20124] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20126] set_robust_list(0x555556ba76e0, 24 [pid 20122] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20124] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20126] <... set_robust_list resumed>) = 0 [pid 20122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20124] <... futex resumed>) = 0 [pid 20126] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20122] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20126] <... prctl resumed>) = 0 [pid 20124] dup(4 [pid 20122] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20128 attached [pid 20126] setpgid(0, 0 [pid 20124] <... dup resumed>) = 5 [pid 20122] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20128] set_robust_list(0x555556ba76e0, 24 [pid 20126] <... setpgid resumed>) = 0 [pid 20124] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20128] <... set_robust_list resumed>) = 0 [pid 20126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20122] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20126] <... openat resumed>) = 3 [pid 20122] <... futex resumed>) = 0 [pid 20128] <... prctl resumed>) = 0 [pid 20126] write(3, "1000", 4 [pid 20122] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20128] setpgid(0, 0 [pid 20126] <... write resumed>) = 4 [pid 20128] <... setpgid resumed>) = 0 [pid 20126] close(3 [pid 20128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20126] <... close resumed>) = 0 [pid 20128] <... openat resumed>) = 3 [pid 20126] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20128] write(3, "1000", 4 [pid 20126] <... futex resumed>) = 0 [pid 20128] <... write resumed>) = 4 [pid 20126] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20128] close(3 [pid 20126] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20128] <... close resumed>) = 0 [pid 20126] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20128] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20126] <... mprotect resumed>) = 0 [pid 20128] <... futex resumed>) = 0 [pid 20126] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20124] <... futex resumed>) = 1 [pid 20122] <... futex resumed>) = 0 [pid 20128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20124] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20122] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=46000000} [pid 20128] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20126] <... clone resumed>, parent_tid=[20129], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20129 [pid 20128] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20126] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20128] <... mprotect resumed>) = 0 [pid 20126] <... futex resumed>) = 0 [pid 20128] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20126] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20128] <... clone resumed>, parent_tid=[20130], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20130 [pid 20128] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20128] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20129 attached [pid 20129] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20129] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20129] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 20127 attached [pid 20129] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20127] set_robust_list(0x7f61a3ef39e0, 24./strace-static-x86_64: Process 20130 attached [pid 20129] <... futex resumed>) = 1 [pid 20126] <... futex resumed>) = 0 [pid 20130] set_robust_list(0x7f61a3ef39e0, 24 [pid 20129] pipe2( [pid 20126] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20130] <... set_robust_list resumed>) = 0 [pid 20129] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20126] <... futex resumed>) = 0 [pid 20130] mkdir("./file0", 0777 [pid 20129] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20126] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20130] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20129] <... futex resumed>) = 0 [pid 20126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20130] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20129] dup(4 [pid 20126] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20130] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20129] <... dup resumed>) = 5 [pid 20126] <... futex resumed>) = 0 [pid 20130] <... futex resumed>) = 1 [pid 20129] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20128] <... futex resumed>) = 0 [pid 20126] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20130] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20129] <... futex resumed>) = 0 [pid 20128] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20130] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20129] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20128] <... futex resumed>) = 0 [pid 20126] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20130] pipe2( [pid 20129] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20128] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20126] <... futex resumed>) = 0 [pid 20130] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20129] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20126] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20130] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20128] <... futex resumed>) = 0 [pid 20130] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20128] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20130] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20128] <... futex resumed>) = 0 [pid 20130] dup(4 [pid 20128] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20130] <... dup resumed>) = 5 [pid 20130] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20128] <... futex resumed>) = 0 [pid 20130] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20128] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20127] <... set_robust_list resumed>) = 0 [pid 20130] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20128] <... futex resumed>) = 0 [pid 20130] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20128] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20127] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20127] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20127] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20125] <... futex resumed>) = 0 [pid 20127] pipe2( [pid 20125] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20127] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20125] <... futex resumed>) = 0 [pid 20127] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20125] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20127] <... futex resumed>) = 0 [pid 20125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20127] dup(4 [pid 20125] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20127] <... dup resumed>) = 5 [pid 20125] <... futex resumed>) = 0 [pid 20127] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20125] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20127] <... futex resumed>) = 0 [pid 20125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20124] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20127] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20125] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20125] <... futex resumed>) = 0 [pid 20127] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20125] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20124] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20122] <... futex resumed>) = 0 [pid 20124] write(5, NULL, 176 [pid 20122] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20124] <... write resumed>) = -1 EFAULT (Bad address) [pid 20122] <... futex resumed>) = 0 [pid 20124] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20122] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20130] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20124] <... futex resumed>) = 0 [pid 20122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20130] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20129] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20124] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20122] exit_group(0 [pid 20130] <... futex resumed>) = 1 [pid 20129] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20128] <... futex resumed>) = 0 [pid 20124] <... futex resumed>) = ? [pid 20122] <... exit_group resumed>) = ? [pid 20130] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20129] <... futex resumed>) = 1 [pid 20128] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20126] <... futex resumed>) = 0 [pid 20130] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20129] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20130] write(5, NULL, 176 [pid 20128] <... futex resumed>) = 0 [pid 20126] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20130] <... write resumed>) = -1 EFAULT (Bad address) [pid 20128] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20126] <... futex resumed>) = 1 [pid 20129] <... futex resumed>) = 0 [pid 20124] +++ exited with 0 +++ [pid 20122] +++ exited with 0 +++ [pid 20130] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20129] write(5, NULL, 176 [pid 20128] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20126] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20122, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20130] <... futex resumed>) = 0 [pid 20129] <... write resumed>) = -1 EFAULT (Bad address) [pid 20128] exit_group(0 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20129] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20128] <... exit_group resumed>) = ? [pid 20127] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] <... restart_syscall resumed>) = 0 [pid 20130] +++ exited with 0 +++ [pid 20129] <... futex resumed>) = 1 [pid 20128] +++ exited with 0 +++ [pid 20127] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20126] <... futex resumed>) = 0 [pid 20129] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20127] <... futex resumed>) = 1 [pid 20126] exit_group(0 [pid 20125] <... futex resumed>) = 0 [pid 20129] <... futex resumed>) = ? [pid 20127] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20126] <... exit_group resumed>) = ? [pid 20125] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20128, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20129] +++ exited with 0 +++ [pid 20127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20126] +++ exited with 0 +++ [pid 20125] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20127] write(5, NULL, 176 [pid 20125] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20126, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] <... openat resumed>) = 3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20127] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20127] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... openat resumed>) = 3 [pid 20127] <... futex resumed>) = 1 [pid 20125] <... futex resumed>) = 0 [pid 3606] close(3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20127] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20125] exit_group(0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] <... close resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20127] <... futex resumed>) = ? [pid 20125] <... exit_group resumed>) = ? [pid 3607] <... openat resumed>) = 3 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] close(3 [pid 20127] +++ exited with 0 +++ [pid 20125] +++ exited with 0 +++ [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3601] <... close resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20131 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20125, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] close(3./strace-static-x86_64: Process 20131 attached [pid 20131] set_robust_list(0x555556ba76e0, 24 [pid 3607] <... close resumed>) = 0 [pid 20131] <... set_robust_list resumed>) = 0 [pid 20131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20131] setpgid(0, 0) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20132 [pid 20131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20131] write(3, "1000", 4 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20133 [pid 20131] <... write resumed>) = 4 [pid 20131] close(3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20131] <... close resumed>) = 0 [pid 20131] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20132 attached [pid 20131] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20132] set_robust_list(0x555556ba76e0, 24 [pid 20131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] close(3 [pid 20132] <... set_robust_list resumed>) = 0 [pid 20131] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3604] <... close resumed>) = 0 [pid 20132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20131] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20132] <... prctl resumed>) = 0 [pid 20131] <... mprotect resumed>) = 0 [pid 20132] setpgid(0, 0 [pid 20131] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20132] <... setpgid resumed>) = 0 [pid 20132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20131] <... clone resumed>, parent_tid=[20134], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20134 [pid 20132] <... openat resumed>) = 3 [pid 20131] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20135 [pid 20132] write(3, "1000", 4 [pid 20131] <... futex resumed>) = 0 [pid 20132] <... write resumed>) = 4 [pid 20131] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20132] close(3) = 0 [pid 20132] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20132] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20132] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20134 attached [pid 20134] set_robust_list(0x7f61a3ef39e0, 24 [pid 20132] <... clone resumed>, parent_tid=[20136], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20136 [pid 20134] <... set_robust_list resumed>) = 0 [pid 20132] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20134] mkdir("./file0", 0777 [pid 20132] <... futex resumed>) = 0 [pid 20134] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20132] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20134] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20134] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20131] <... futex resumed>) = 0 [pid 20134] pipe2( [pid 20131] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20134] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20131] <... futex resumed>) = 0 [pid 20134] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20131] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20136 attached [pid 20134] <... futex resumed>) = 0 [pid 20131] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20136] set_robust_list(0x7f61a3ef39e0, 24 [pid 20134] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20131] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20136] <... set_robust_list resumed>) = 0 [pid 20134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20131] <... futex resumed>) = 0 [pid 20136] mkdir("./file0", 0777 [pid 20134] dup(4 [pid 20131] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20135 attached [pid 20136] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20134] <... dup resumed>) = 5 [pid 20136] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20134] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20133 attached [pid 20136] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20135] set_robust_list(0x555556ba76e0, 24 [pid 20134] <... futex resumed>) = 1 [pid 20131] <... futex resumed>) = 0 [pid 20136] <... futex resumed>) = 1 [pid 20134] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20132] <... futex resumed>) = 0 [pid 20131] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20136] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20132] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20131] <... futex resumed>) = 0 [pid 20136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20135] <... set_robust_list resumed>) = 0 [pid 20134] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20133] set_robust_list(0x555556ba76e0, 24 [pid 20132] <... futex resumed>) = 0 [pid 20131] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20136] pipe2( [pid 20135] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20132] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20136] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20136] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20132] <... futex resumed>) = 0 [pid 20136] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20132] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20132] <... futex resumed>) = 0 [pid 20136] dup(4 [pid 20132] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20136] <... dup resumed>) = 5 [pid 20136] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20132] <... futex resumed>) = 0 [pid 20136] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20132] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20132] <... futex resumed>) = 0 [pid 20136] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20132] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20135] <... prctl resumed>) = 0 [pid 20134] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20133] <... set_robust_list resumed>) = 0 [pid 20135] setpgid(0, 0 [pid 20134] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20133] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20131] <... futex resumed>) = 0 [pid 20135] <... setpgid resumed>) = 0 [pid 20134] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20131] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20133] <... prctl resumed>) = 0 [pid 20131] <... futex resumed>) = 0 [pid 20135] <... openat resumed>) = 3 [pid 20134] write(5, NULL, 176 [pid 20131] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20135] write(3, "1000", 4 [pid 20134] <... write resumed>) = -1 EFAULT (Bad address) [pid 20133] setpgid(0, 0 [pid 20135] <... write resumed>) = 4 [pid 20134] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20133] <... setpgid resumed>) = 0 [pid 20135] close(3 [pid 20134] <... futex resumed>) = 1 [pid 20131] <... futex resumed>) = 0 [pid 20134] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20135] <... close resumed>) = 0 [pid 20133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20131] exit_group(0 [pid 20135] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20134] <... futex resumed>) = ? [pid 20131] <... exit_group resumed>) = ? [pid 20136] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20135] <... futex resumed>) = 0 [pid 20134] +++ exited with 0 +++ [pid 20133] <... openat resumed>) = 3 [pid 20131] +++ exited with 0 +++ [pid 20136] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20133] write(3, "1000", 4 [pid 20136] <... futex resumed>) = 1 [pid 20135] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20132] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20131, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20136] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20135] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20133] <... write resumed>) = 4 [pid 20132] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20135] <... mprotect resumed>) = 0 [pid 20133] close(3 [pid 20132] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20136] write(5, NULL, 176 [pid 20135] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20132] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20136] <... write resumed>) = -1 EFAULT (Bad address) [pid 20133] <... close resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20136] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20135] <... clone resumed>, parent_tid=[20137], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20137 [pid 20133] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 20136] <... futex resumed>) = 1 [pid 20135] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20133] <... futex resumed>) = 0 [pid 20132] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20136] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20135] <... futex resumed>) = 0 [pid 20133] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20132] exit_group(0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20136] <... futex resumed>) = ? [pid 20135] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20133] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20132] <... exit_group resumed>) = ? [pid 20136] +++ exited with 0 +++ [pid 20133] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20132] +++ exited with 0 +++ [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20138 [pid 20133] <... mprotect resumed>) = 0 [pid 20133] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20132, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 20137 attached [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20133] <... clone resumed>, parent_tid=[20139], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20139 [pid 20133] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20133] <... futex resumed>) = 0 [pid 20137] set_robust_list(0x7f61a3ef39e0, 24 [pid 20133] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20137] <... set_robust_list resumed>) = 0 [pid 20137] mkdir("./file0", 0777 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20137] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 20139 attached [pid 20137] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3601] <... openat resumed>) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20139] set_robust_list(0x7f61a3ef39e0, 24 [pid 20137] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20139] <... set_robust_list resumed>) = 0 [pid 20137] <... futex resumed>) = 1 [pid 20135] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20139] mkdir("./file0", 0777 [pid 20137] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20139] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20137] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20135] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20139] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20137] pipe2( [pid 20135] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20138 attached [pid 20139] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20137] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20135] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20139] <... futex resumed>) = 1 [pid 20137] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20139] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20137] <... futex resumed>) = 0 [pid 20137] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20135] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20133] <... futex resumed>) = 0 [pid 20138] set_robust_list(0x555556ba76e0, 24 [pid 20135] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20133] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20140 [pid 20139] <... futex resumed>) = 0 [pid 20138] <... set_robust_list resumed>) = 0 [pid 20137] <... futex resumed>) = 0 [pid 20135] <... futex resumed>) = 1 [pid 20133] <... futex resumed>) = 1 [pid 20139] pipe2( [pid 20137] dup(4 [pid 20135] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20133] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20140 attached [pid 20139] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20138] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20137] <... dup resumed>) = 5 [pid 20140] set_robust_list(0x555556ba76e0, 24 [pid 20139] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20137] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20140] <... set_robust_list resumed>) = 0 [pid 20139] <... futex resumed>) = 1 [pid 20138] <... prctl resumed>) = 0 [pid 20137] <... futex resumed>) = 1 [pid 20135] <... futex resumed>) = 0 [pid 20133] <... futex resumed>) = 0 [pid 20140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20139] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20138] setpgid(0, 0 [pid 20137] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20135] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20133] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20140] <... prctl resumed>) = 0 [pid 20139] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20138] <... setpgid resumed>) = 0 [pid 20137] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20135] <... futex resumed>) = 0 [pid 20133] <... futex resumed>) = 0 [pid 20140] setpgid(0, 0 [pid 20139] dup(4 [pid 20138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20137] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20135] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20133] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20140] <... setpgid resumed>) = 0 [pid 20139] <... dup resumed>) = 5 [pid 20138] <... openat resumed>) = 3 [pid 20139] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20138] write(3, "1000", 4 [pid 20139] <... futex resumed>) = 1 [pid 20138] <... write resumed>) = 4 [pid 20133] <... futex resumed>) = 0 [pid 20139] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20138] close(3 [pid 20133] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20139] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20138] <... close resumed>) = 0 [pid 20138] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20138] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20138] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20138] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20141], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20141 [pid 20138] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20138] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20141 attached [pid 20139] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20133] <... futex resumed>) = 0 [pid 20133] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20140] <... openat resumed>) = 3 [pid 20140] write(3, "1000", 4) = 4 [pid 20137] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20140] close(3) = 0 [pid 20137] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20141] set_robust_list(0x7f61a3ef39e0, 24 [pid 20140] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20137] <... futex resumed>) = 1 [pid 20135] <... futex resumed>) = 0 [pid 20141] <... set_robust_list resumed>) = 0 [pid 20135] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20141] mkdir("./file0", 0777 [pid 20140] <... futex resumed>) = 0 [pid 20137] write(5, NULL, 176 [pid 20135] <... futex resumed>) = 0 [pid 20141] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20137] <... write resumed>) = -1 EFAULT (Bad address) [pid 20135] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20141] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20140] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20141] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20140] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20139] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20137] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20140] <... mprotect resumed>) = 0 [pid 20139] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20137] <... futex resumed>) = 1 [pid 20141] <... futex resumed>) = 1 [pid 20140] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20139] <... futex resumed>) = 1 [pid 20138] <... futex resumed>) = 0 [pid 20137] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20135] <... futex resumed>) = 0 [pid 20133] <... futex resumed>) = 0 [pid 20141] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20139] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20138] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20135] exit_group(0 [pid 20133] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20142 attached [pid 20141] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20140] <... clone resumed>, parent_tid=[20142], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20142 [pid 20139] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20138] <... futex resumed>) = 0 [pid 20137] <... futex resumed>) = ? [pid 20135] <... exit_group resumed>) = ? [pid 20133] <... futex resumed>) = 0 [pid 20141] pipe2( [pid 20140] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20139] write(5, NULL, 176 [pid 20138] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20137] +++ exited with 0 +++ [pid 20133] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20140] <... futex resumed>) = 0 [pid 20139] <... write resumed>) = -1 EFAULT (Bad address) [pid 20140] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20139] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20135] +++ exited with 0 +++ [pid 20141] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20139] <... futex resumed>) = 1 [pid 20133] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20135, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20141] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20139] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20138] <... futex resumed>) = 0 [pid 20133] exit_group(0 [pid 20142] set_robust_list(0x7f61a3ef39e0, 24 [pid 20141] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20139] <... futex resumed>) = ? [pid 20138] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20133] <... exit_group resumed>) = ? [pid 20142] <... set_robust_list resumed>) = 0 [pid 20141] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20139] +++ exited with 0 +++ [pid 20138] <... futex resumed>) = 0 [pid 20141] dup(4 [pid 20138] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20133] +++ exited with 0 +++ [pid 20141] <... dup resumed>) = 5 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20133, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20142] mkdir("./file0", 0777 [pid 20141] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20138] <... futex resumed>) = 0 [pid 20142] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20138] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20142] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20141] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20138] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20142] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20140] <... futex resumed>) = 0 [pid 20138] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20142] pipe2( [pid 20140] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20142] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20140] <... futex resumed>) = 0 [pid 20142] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20140] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20142] <... futex resumed>) = 0 [pid 20140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20142] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20140] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20140] <... futex resumed>) = 0 [pid 20142] dup(4 [pid 20140] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20142] <... dup resumed>) = 5 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] <... close resumed>) = 0 [pid 20142] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20142] <... futex resumed>) = 1 [pid 20140] <... futex resumed>) = 0 [pid 20142] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20140] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20140] <... futex resumed>) = 0 [pid 20142] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20140] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20143 attached ) = -1 ENXIO (No such device or address) [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20143 [pid 3607] close(3 [pid 20143] set_robust_list(0x555556ba76e0, 24 [pid 20141] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] <... close resumed>) = 0 [pid 20143] <... set_robust_list resumed>) = 0 [pid 20141] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20143] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20141] <... futex resumed>) = 1 [pid 20138] <... futex resumed>) = 0 [pid 20143] <... prctl resumed>) = 0 [pid 20141] write(5, NULL, 176 [pid 20138] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20144 [pid 20143] setpgid(0, 0 [pid 20141] <... write resumed>) = -1 EFAULT (Bad address) [pid 20138] <... futex resumed>) = 0 [pid 20143] <... setpgid resumed>) = 0 [pid 20141] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20138] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20141] <... futex resumed>) = 0 [pid 20138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20143] <... openat resumed>) = 3 [pid 20141] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20138] exit_group(0 [pid 20143] write(3, "1000", 4 [pid 20141] <... futex resumed>) = ? [pid 20138] <... exit_group resumed>) = ? [pid 20143] <... write resumed>) = 4 [pid 20141] +++ exited with 0 +++ [pid 20138] +++ exited with 0 +++ [pid 20143] close(3) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20138, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20143] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20143] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20143] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20143] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20143] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] close(3 [pid 20143] <... mprotect resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20143] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20143] <... clone resumed>, parent_tid=[20145], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20145 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20146 [pid 20143] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20143] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20146 attached [pid 20146] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20146] setpgid(0, 0) = 0 [pid 20146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20146] write(3, "1000", 4./strace-static-x86_64: Process 20145 attached ) = 4 [pid 20142] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20146] close(3 [pid 20145] set_robust_list(0x7f61a3ef39e0, 24 [pid 20142] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20146] <... close resumed>) = 0 [pid 20145] <... set_robust_list resumed>) = 0 [pid 20142] <... futex resumed>) = 1 [pid 20140] <... futex resumed>) = 0 [pid 20146] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20145] mkdir("./file0", 0777 [pid 20142] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20140] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20146] <... futex resumed>) = 0 [pid 20145] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20140] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20144 attached [pid 20146] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20145] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20142] write(5, NULL, 176 [pid 20140] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20146] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20145] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20142] <... write resumed>) = -1 EFAULT (Bad address) [pid 20146] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20145] <... futex resumed>) = 1 [pid 20144] set_robust_list(0x555556ba76e0, 24 [pid 20143] <... futex resumed>) = 0 [pid 20146] <... mprotect resumed>) = 0 [pid 20145] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20144] <... set_robust_list resumed>) = 0 [pid 20143] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20142] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20146] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20145] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20143] <... futex resumed>) = 0 [pid 20140] <... futex resumed>) = 0 [pid 20142] <... futex resumed>) = 1 [pid 20145] pipe2( [pid 20144] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20143] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20142] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20140] exit_group(0 [pid 20146] <... clone resumed>, parent_tid=[20147], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20147 [pid 20145] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20144] <... prctl resumed>) = 0 [pid 20142] <... futex resumed>) = ? [pid 20140] <... exit_group resumed>) = ? [pid 20146] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20145] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20142] +++ exited with 0 +++ [pid 20146] <... futex resumed>) = 0 [pid 20145] <... futex resumed>) = 1 [pid 20143] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20147 attached [pid 20146] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20145] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20144] setpgid(0, 0 [pid 20143] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20140] +++ exited with 0 +++ [pid 20147] set_robust_list(0x7f61a3ef39e0, 24 [pid 20145] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20143] <... futex resumed>) = 0 [pid 20147] <... set_robust_list resumed>) = 0 [pid 20145] dup(4 [pid 20143] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20144] <... setpgid resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20140, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20147] mkdir("./file0", 0777 [pid 20145] <... dup resumed>) = 5 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20147] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20145] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3601] <... restart_syscall resumed>) = 0 [pid 20147] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20145] <... futex resumed>) = 1 [pid 20144] <... openat resumed>) = 3 [pid 20143] <... futex resumed>) = 0 [pid 20147] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20145] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20144] write(3, "1000", 4 [pid 20143] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20147] <... futex resumed>) = 1 [pid 20146] <... futex resumed>) = 0 [pid 20145] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20144] <... write resumed>) = 4 [pid 20143] <... futex resumed>) = 0 [pid 20147] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20146] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20145] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20144] close(3 [pid 20143] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20146] <... futex resumed>) = 0 [pid 20144] <... close resumed>) = 0 [pid 20147] pipe2( [pid 20146] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20144] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20147] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20147] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20146] <... futex resumed>) = 0 [pid 20147] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20146] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20146] <... futex resumed>) = 0 [pid 20147] dup(4 [pid 20146] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20147] <... dup resumed>) = 5 [pid 20147] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20146] <... futex resumed>) = 0 [pid 20147] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20146] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20146] <... futex resumed>) = 0 [pid 20147] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20146] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20144] <... futex resumed>) = 0 [pid 20144] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20144] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20144] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20145] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20144] <... mprotect resumed>) = 0 [pid 3601] close(3 [pid 20145] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20144] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... close resumed>) = 0 [pid 20145] <... futex resumed>) = 1 [pid 20143] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20145] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20144] <... clone resumed>, parent_tid=[20148], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20148 [pid 20144] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20149 [pid 20144] <... futex resumed>) = 0 [pid 20144] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20149 attached [pid 20149] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20149] setpgid(0, 0 [pid 20143] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20145] <... futex resumed>) = 0 [pid 20143] <... futex resumed>) = 1 [pid 20145] write(5, NULL, 176./strace-static-x86_64: Process 20148 attached [pid 20147] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20145] <... write resumed>) = -1 EFAULT (Bad address) [pid 20149] <... setpgid resumed>) = 0 [pid 20143] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20148] set_robust_list(0x7f61a3ef39e0, 24 [pid 20147] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20145] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20147] <... futex resumed>) = 1 [pid 20146] <... futex resumed>) = 0 [pid 20145] <... futex resumed>) = 0 [pid 20143] exit_group(0 [pid 20148] <... set_robust_list resumed>) = 0 [pid 20149] <... openat resumed>) = 3 [pid 20147] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20146] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20143] <... exit_group resumed>) = ? [pid 20149] write(3, "1000", 4 [pid 20148] mkdir("./file0", 0777 [pid 20147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20146] <... futex resumed>) = 0 [pid 20145] +++ exited with 0 +++ [pid 20149] <... write resumed>) = 4 [pid 20148] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20147] write(5, NULL, 176 [pid 20146] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20143] +++ exited with 0 +++ [pid 20149] close(3 [pid 20147] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20143, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20149] <... close resumed>) = 0 [pid 20148] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20147] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20149] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20148] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20147] <... futex resumed>) = 1 [pid 20146] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20149] <... futex resumed>) = 0 [pid 20148] <... futex resumed>) = 1 [pid 20147] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20146] exit_group(0 [pid 20144] <... futex resumed>) = 0 [pid 20149] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20148] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20147] <... futex resumed>) = ? [pid 20146] <... exit_group resumed>) = ? [pid 20144] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20149] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20148] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20147] +++ exited with 0 +++ [pid 20146] +++ exited with 0 +++ [pid 20144] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20149] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20148] pipe2( [pid 20144] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 20149] <... mprotect resumed>) = 0 [pid 20148] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20146, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20149] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20148] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20148] <... futex resumed>) = 1 [pid 20144] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 3604] close(3 [pid 20149] <... clone resumed>, parent_tid=[20150], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20150 [pid 20148] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20144] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... close resumed>) = 0 [pid 20149] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20148] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20144] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20151 attached [pid 20149] <... futex resumed>) = 0 [pid 20148] dup(4 [pid 20144] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 20151] set_robust_list(0x555556ba76e0, 24 [pid 20149] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20148] <... dup resumed>) = 5 [pid 3606] <... close resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20151 ./strace-static-x86_64: Process 20150 attached [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20150] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20152 [pid 20150] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20150] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20150] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20150] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20151] <... set_robust_list resumed>) = 0 [pid 20148] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20152 attached [pid 20149] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20148] <... futex resumed>) = 1 [pid 20144] <... futex resumed>) = 0 [pid 20151] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20150] <... futex resumed>) = 0 [pid 20149] <... futex resumed>) = 1 [pid 20148] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20144] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20150] pipe2( [pid 20149] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20150] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20144] <... futex resumed>) = 0 [pid 20150] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20149] <... futex resumed>) = 0 [pid 20144] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20150] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20149] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20150] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20149] <... futex resumed>) = 0 [pid 20150] dup(4 [pid 20149] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20150] <... dup resumed>) = 5 [pid 20150] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20149] <... futex resumed>) = 0 [pid 20150] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20149] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20150] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20149] <... futex resumed>) = 0 [pid 20150] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20149] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20152] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20152] setpgid(0, 0) = 0 [pid 20152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20152] write(3, "1000", 4) = 4 [pid 20152] close(3) = 0 [pid 20152] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20151] <... prctl resumed>) = 0 [pid 20152] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20151] setpgid(0, 0 [pid 20152] <... mprotect resumed>) = 0 [pid 20152] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20151] <... setpgid resumed>) = 0 [pid 20152] <... clone resumed>, parent_tid=[20153], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20153 [pid 20151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 20153 attached ) = 3 [pid 20148] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20153] set_robust_list(0x7f61a3ef39e0, 24 [pid 20151] write(3, "1000", 4 [pid 20148] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20153] <... set_robust_list resumed>) = 0 [pid 20151] <... write resumed>) = 4 [pid 20148] <... futex resumed>) = 1 [pid 20144] <... futex resumed>) = 0 [pid 20153] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20151] close(3 [pid 20148] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20144] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20152] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20151] <... close resumed>) = 0 [pid 20150] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20148] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20144] <... futex resumed>) = 0 [pid 20153] <... futex resumed>) = 0 [pid 20152] <... futex resumed>) = 1 [pid 20151] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20150] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20148] write(5, NULL, 176 [pid 20144] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20153] mkdir("./file0", 0777 [pid 20152] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20151] <... futex resumed>) = 0 [pid 20150] <... futex resumed>) = 1 [pid 20149] <... futex resumed>) = 0 [pid 20148] <... write resumed>) = -1 EFAULT (Bad address) [pid 20153] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20151] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20150] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20149] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20148] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20153] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20151] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20150] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20149] <... futex resumed>) = 0 [pid 20148] <... futex resumed>) = 1 [pid 20144] <... futex resumed>) = 0 [pid 20153] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20151] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20150] write(5, NULL, 176 [pid 20149] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20148] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20144] exit_group(0 [pid 20153] <... futex resumed>) = 1 [pid 20152] <... futex resumed>) = 0 [pid 20151] <... mprotect resumed>) = 0 [pid 20150] <... write resumed>) = -1 EFAULT (Bad address) [pid 20148] <... futex resumed>) = ? [pid 20144] <... exit_group resumed>) = ? [pid 20153] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20152] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20151] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20150] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20148] +++ exited with 0 +++ [pid 20153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20152] <... futex resumed>) = 0 [pid 20150] <... futex resumed>) = 1 [pid 20149] <... futex resumed>) = 0 [pid 20144] +++ exited with 0 +++ [pid 20153] pipe2( [pid 20152] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20151] <... clone resumed>, parent_tid=[20154], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20154 [pid 20150] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20149] exit_group(0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20144, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20153] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20151] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20150] <... futex resumed>) = ? [pid 20149] <... exit_group resumed>) = ? [pid 20153] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20151] <... futex resumed>) = 0 [pid 20150] +++ exited with 0 +++ [pid 20153] <... futex resumed>) = 1 [pid 20152] <... futex resumed>) = 0 [pid 20151] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20153] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20152] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20152] <... futex resumed>) = 0 [pid 20153] dup(4 [pid 20152] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20149] +++ exited with 0 +++ [pid 20153] <... dup resumed>) = 5 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20149, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20153] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20152] <... futex resumed>) = 0 [pid 20153] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20152] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20152] <... futex resumed>) = 0 [pid 20153] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20152] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20154 attached [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20154] set_robust_list(0x7f61a3ef39e0, 24 [pid 3607] <... openat resumed>) = 3 [pid 20154] <... set_robust_list resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20154] mkdir("./file0", 0777 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20154] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3607] close(3 [pid 20154] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3607] <... close resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20154] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20153] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... openat resumed>) = 3 [pid 20153] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20153] <... futex resumed>) = 1 [pid 20152] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20154] <... futex resumed>) = 1 [pid 20153] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20152] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20151] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20154] pipe2( [pid 20153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20152] <... futex resumed>) = 0 [pid 20151] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20155 [pid 3601] <... close resumed>) = 0 [pid 20153] write(5, NULL, 176 [pid 20152] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20154] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20151] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20155 attached [pid 20154] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20153] <... write resumed>) = -1 EFAULT (Bad address) [pid 20151] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20155] set_robust_list(0x555556ba76e0, 24 [pid 20154] <... futex resumed>) = 0 [pid 20153] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20151] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20156 [pid 20155] <... set_robust_list resumed>) = 0 [pid 20154] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20153] <... futex resumed>) = 1 [pid 20152] <... futex resumed>) = 0 [pid 20151] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20155] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20154] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20153] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20152] exit_group(0 [pid 20151] <... futex resumed>) = 0 [pid 20155] <... prctl resumed>) = 0 [pid 20154] dup(4 [pid 20153] <... futex resumed>) = ? [pid 20152] <... exit_group resumed>) = ? [pid 20151] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20156 attached [pid 20155] setpgid(0, 0 [pid 20154] <... dup resumed>) = 5 [pid 20153] +++ exited with 0 +++ [pid 20152] +++ exited with 0 +++ [pid 20156] set_robust_list(0x555556ba76e0, 24 [pid 20154] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20152, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20156] <... set_robust_list resumed>) = 0 [pid 20155] <... setpgid resumed>) = 0 [pid 20154] <... futex resumed>) = 1 [pid 20151] <... futex resumed>) = 0 [pid 20155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20154] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20151] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20156] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20155] <... openat resumed>) = 3 [pid 20154] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20151] <... futex resumed>) = 0 [pid 20155] write(3, "1000", 4 [pid 20154] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20151] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20156] <... prctl resumed>) = 0 [pid 20155] <... write resumed>) = 4 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20155] close(3) = 0 [pid 20155] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20155] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] <... openat resumed>) = 3 [pid 20155] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20155] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20155] <... mprotect resumed>) = 0 [pid 3606] close(3 [pid 20155] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20155] <... clone resumed>, parent_tid=[20157], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20157 [pid 20156] setpgid(0, 0 [pid 20155] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20158 [pid 20156] <... setpgid resumed>) = 0 [pid 20155] <... futex resumed>) = 0 [pid 20155] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 20158 attached [pid 20158] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20158] setpgid(0, 0) = 0 [pid 20158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20158] write(3, "1000", 4) = 4 [pid 20158] close(3) = 0 [pid 20158] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20157 attached ) = 0 [pid 20157] set_robust_list(0x7f61a3ef39e0, 24 [pid 20158] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20157] <... set_robust_list resumed>) = 0 [pid 20158] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20157] mkdir("./file0", 0777 [pid 20158] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20157] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20154] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20154] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20158] <... mprotect resumed>) = 0 [pid 20157] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20156] <... openat resumed>) = 3 [pid 20154] <... futex resumed>) = 1 [pid 20151] <... futex resumed>) = 0 [pid 20158] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20157] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20156] write(3, "1000", 4 [pid 20154] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20151] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20159 attached [pid 20157] <... futex resumed>) = 1 [pid 20156] <... write resumed>) = 4 [pid 20155] <... futex resumed>) = 0 [pid 20154] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20151] <... futex resumed>) = 0 [pid 20158] <... clone resumed>, parent_tid=[20159], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20159 [pid 20157] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20156] close(3 [pid 20155] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20154] write(5, NULL, 176 [pid 20151] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20159] set_robust_list(0x7f61a3ef39e0, 24 [pid 20158] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20156] <... close resumed>) = 0 [pid 20155] <... futex resumed>) = 0 [pid 20154] <... write resumed>) = -1 EFAULT (Bad address) [pid 20158] <... futex resumed>) = 0 [pid 20157] pipe2( [pid 20156] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20155] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20154] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20158] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20157] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20156] <... futex resumed>) = 0 [pid 20154] <... futex resumed>) = 1 [pid 20151] <... futex resumed>) = 0 [pid 20157] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20156] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20154] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20151] exit_group(0 [pid 20157] <... futex resumed>) = 1 [pid 20156] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20155] <... futex resumed>) = 0 [pid 20154] <... futex resumed>) = ? [pid 20151] <... exit_group resumed>) = ? [pid 20157] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20156] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20155] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20154] +++ exited with 0 +++ [pid 20157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20155] <... futex resumed>) = 0 [pid 20157] dup(4 [pid 20155] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20157] <... dup resumed>) = 5 [pid 20157] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20155] <... futex resumed>) = 0 [pid 20157] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20156] <... mprotect resumed>) = 0 [pid 20155] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20151] +++ exited with 0 +++ [pid 20157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20156] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20155] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20151, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20159] <... set_robust_list resumed>) = 0 [pid 20157] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20155] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20160 attached [pid 20159] mkdir("./file0", 0777 [pid 20156] <... clone resumed>, parent_tid=[20160], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20160 [pid 20160] set_robust_list(0x7f61a3ef39e0, 24 [pid 20159] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20156] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20160] <... set_robust_list resumed>) = 0 [pid 20159] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20156] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20160] mkdir("./file0", 0777 [pid 20159] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20156] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20160] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20159] <... futex resumed>) = 1 [pid 20158] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20160] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20159] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20158] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20160] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20159] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20158] <... futex resumed>) = 0 [pid 20157] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] <... close resumed>) = 0 [pid 20160] <... futex resumed>) = 1 [pid 20159] pipe2( [pid 20158] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20157] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20156] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20160] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20159] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20157] <... futex resumed>) = 1 [pid 20156] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20155] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20161 attached [pid 20160] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20159] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20157] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20156] <... futex resumed>) = 0 [pid 20155] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20161] set_robust_list(0x555556ba76e0, 24 [pid 20160] pipe2( [pid 20159] <... futex resumed>) = 1 [pid 20158] <... futex resumed>) = 0 [pid 20157] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20156] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20155] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20161 [pid 20161] <... set_robust_list resumed>) = 0 [pid 20160] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20159] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20158] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20157] write(5, NULL, 176 [pid 20155] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20161] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20160] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20159] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20158] <... futex resumed>) = 0 [pid 20157] <... write resumed>) = -1 EFAULT (Bad address) [pid 20161] <... prctl resumed>) = 0 [pid 20160] <... futex resumed>) = 1 [pid 20159] dup(4 [pid 20158] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20157] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20156] <... futex resumed>) = 0 [pid 20161] setpgid(0, 0 [pid 20160] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20159] <... dup resumed>) = 5 [pid 20157] <... futex resumed>) = 1 [pid 20156] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20155] <... futex resumed>) = 0 [pid 20161] <... setpgid resumed>) = 0 [pid 20160] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20159] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20157] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20156] <... futex resumed>) = 0 [pid 20155] exit_group(0 [pid 20161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20160] dup(4 [pid 20159] <... futex resumed>) = 1 [pid 20158] <... futex resumed>) = 0 [pid 20157] <... futex resumed>) = ? [pid 20156] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20155] <... exit_group resumed>) = ? [pid 20161] <... openat resumed>) = 3 [pid 20160] <... dup resumed>) = 5 [pid 20159] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20158] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20157] +++ exited with 0 +++ [pid 20161] write(3, "1000", 4 [pid 20160] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20158] <... futex resumed>) = 0 [pid 20155] +++ exited with 0 +++ [pid 20158] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20160] <... futex resumed>) = 1 [pid 20161] <... write resumed>) = 4 [pid 20160] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20156] <... futex resumed>) = 0 [pid 20161] close(3 [pid 20156] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20155, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20161] <... close resumed>) = 0 [pid 20160] <... futex resumed>) = 0 [pid 20156] <... futex resumed>) = 1 [pid 20161] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20160] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20156] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20161] <... futex resumed>) = 0 [pid 20161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20159] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20161] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20159] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20161] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20159] <... futex resumed>) = 1 [pid 20158] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20161] <... mprotect resumed>) = 0 [pid 20159] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20158] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20161] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20159] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20158] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20159] write(5, NULL, 176 [pid 20158] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 20161] <... clone resumed>, parent_tid=[20162], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20162 [pid 20159] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20161] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20159] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20161] <... futex resumed>) = 0 [pid 20159] <... futex resumed>) = 1 [pid 20158] <... futex resumed>) = 0 [pid 20161] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20159] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20158] exit_group(0 [pid 20159] <... futex resumed>) = ? [pid 20158] <... exit_group resumed>) = ? [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20163 [pid 20159] +++ exited with 0 +++ [pid 20158] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20158, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20160] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 20160] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20156] <... futex resumed>) = 0 [pid 20160] <... futex resumed>) = 1 [pid 20156] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20163 attached [pid 20160] write(5, NULL, 176 [pid 20156] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20163] set_robust_list(0x555556ba76e0, 24 [pid 20160] <... write resumed>) = -1 EFAULT (Bad address) [pid 20156] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... close resumed>) = 0 ./strace-static-x86_64: Process 20162 attached [pid 20163] <... set_robust_list resumed>) = 0 [pid 20160] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20156] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20163] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20162] set_robust_list(0x7f61a3ef39e0, 24 [pid 20160] <... futex resumed>) = 0 [pid 20156] exit_group(0 [pid 20163] <... prctl resumed>) = 0 [pid 20162] <... set_robust_list resumed>) = 0 [pid 20156] <... exit_group resumed>) = ? [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20164 [pid 20160] +++ exited with 0 +++ ./strace-static-x86_64: Process 20164 attached [pid 20156] +++ exited with 0 +++ [pid 20163] setpgid(0, 0 [pid 20162] mkdir("./file0", 0777 [pid 20163] <... setpgid resumed>) = 0 [pid 20162] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20156, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20162] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20163] <... openat resumed>) = 3 [pid 20162] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20164] set_robust_list(0x555556ba76e0, 24 [pid 20163] write(3, "1000", 4 [pid 20162] <... futex resumed>) = 1 [pid 20161] <... futex resumed>) = 0 [pid 20164] <... set_robust_list resumed>) = 0 [pid 20163] <... write resumed>) = 4 [pid 20162] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20161] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20163] close(3 [pid 20162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20161] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20164] <... prctl resumed>) = 0 [pid 20163] <... close resumed>) = 0 [pid 20162] pipe2( [pid 20161] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20163] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20162] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20163] <... futex resumed>) = 0 [pid 20162] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20164] setpgid(0, 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20163] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20162] <... futex resumed>) = 1 [pid 20161] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20164] <... setpgid resumed>) = 0 [pid 20163] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20162] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20161] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 20164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20163] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20161] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20163] <... mprotect resumed>) = 0 [pid 20162] dup(4 [pid 20161] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20164] <... openat resumed>) = 3 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20164] write(3, "1000", 4 [pid 20163] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20162] <... dup resumed>) = 5 [pid 20162] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20164] <... write resumed>) = 4 [pid 20163] <... clone resumed>, parent_tid=[20165], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20165 [pid 20162] <... futex resumed>) = 1 [pid 20161] <... futex resumed>) = 0 [pid 20164] close(3 [pid 20163] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20162] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20161] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20166 [pid 20164] <... close resumed>) = 0 [pid 20163] <... futex resumed>) = 0 [pid 20162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20161] <... futex resumed>) = 0 [pid 20164] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20163] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20162] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20161] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20166 attached ./strace-static-x86_64: Process 20165 attached [pid 20164] <... futex resumed>) = 0 [pid 20165] set_robust_list(0x7f61a3ef39e0, 24 [pid 20164] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20165] <... set_robust_list resumed>) = 0 [pid 20164] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20165] mkdir("./file0", 0777 [pid 20164] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20165] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20164] <... mprotect resumed>) = 0 [pid 20165] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20164] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20165] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20164] <... clone resumed>, parent_tid=[20167], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20167 [pid 20163] <... futex resumed>) = 0 [pid 20165] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20164] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20163] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20162] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20167 attached [pid 20166] set_robust_list(0x555556ba76e0, 24 [pid 20165] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20164] <... futex resumed>) = 0 [pid 20163] <... futex resumed>) = 0 [pid 20162] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20167] set_robust_list(0x7f61a3ef39e0, 24 [pid 20166] <... set_robust_list resumed>) = 0 [pid 20165] pipe2( [pid 20164] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20163] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20162] <... futex resumed>) = 1 [pid 20161] <... futex resumed>) = 0 [pid 20167] <... set_robust_list resumed>) = 0 [pid 20166] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20165] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20162] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20161] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20167] mkdir("./file0", 0777 [pid 20166] <... prctl resumed>) = 0 [pid 20165] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20161] <... futex resumed>) = 0 [pid 20167] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20166] setpgid(0, 0 [pid 20165] <... futex resumed>) = 1 [pid 20163] <... futex resumed>) = 0 [pid 20162] write(5, NULL, 176 [pid 20161] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20167] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20166] <... setpgid resumed>) = 0 [pid 20165] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20163] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20162] <... write resumed>) = -1 EFAULT (Bad address) [pid 20167] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20165] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20163] <... futex resumed>) = 0 [pid 20162] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20167] <... futex resumed>) = 1 [pid 20166] <... openat resumed>) = 3 [pid 20165] dup(4 [pid 20164] <... futex resumed>) = 0 [pid 20163] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20162] <... futex resumed>) = 1 [pid 20161] <... futex resumed>) = 0 [pid 20167] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20166] write(3, "1000", 4 [pid 20165] <... dup resumed>) = 5 [pid 20164] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20162] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20161] exit_group(0 [pid 20167] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20166] <... write resumed>) = 4 [pid 20165] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20164] <... futex resumed>) = 0 [pid 20162] <... futex resumed>) = ? [pid 20161] <... exit_group resumed>) = ? [pid 20167] pipe2( [pid 20166] close(3 [pid 20165] <... futex resumed>) = 1 [pid 20164] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20163] <... futex resumed>) = 0 [pid 20162] +++ exited with 0 +++ [pid 20167] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20166] <... close resumed>) = 0 [pid 20167] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20166] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20161] +++ exited with 0 +++ [pid 20163] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20167] <... futex resumed>) = 0 [pid 20166] <... futex resumed>) = 0 [pid 20165] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20164] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20163] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20161, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20167] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20166] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20166] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20164] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20163] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... restart_syscall resumed>) = 0 [pid 20166] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20167] <... futex resumed>) = 0 [pid 20166] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20164] <... futex resumed>) = 1 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20167] dup(4 [pid 3604] <... openat resumed>) = 3 [pid 20167] <... dup resumed>) = 5 [pid 20166] <... clone resumed>, parent_tid=[20168], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20168 [pid 20164] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20167] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20166] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20164] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20167] <... futex resumed>) = 0 [pid 20166] <... futex resumed>) = 0 [pid 20164] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20167] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20166] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20169 ./strace-static-x86_64: Process 20169 attached [pid 20169] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20169] setpgid(0, 0) = 0 [pid 20169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20164] <... futex resumed>) = 0 [pid 20164] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20169] write(3, "1000", 4) = 4 [pid 20169] close(3./strace-static-x86_64: Process 20168 attached ) = 0 [pid 20165] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20165] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20163] <... futex resumed>) = 0 [pid 20165] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20163] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20165] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20163] <... futex resumed>) = 0 [pid 20165] write(5, NULL, 176 [pid 20163] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20169] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20168] set_robust_list(0x7f61a3ef39e0, 24 [pid 20165] <... write resumed>) = -1 EFAULT (Bad address) [pid 20169] <... futex resumed>) = 0 [pid 20168] <... set_robust_list resumed>) = 0 [pid 20165] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20169] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20168] mkdir("./file0", 0777 [pid 20165] <... futex resumed>) = 1 [pid 20163] <... futex resumed>) = 0 [pid 20169] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20168] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20165] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20163] exit_group(0 [pid 20169] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20168] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20165] <... futex resumed>) = ? [pid 20163] <... exit_group resumed>) = ? [pid 20169] <... mprotect resumed>) = 0 [pid 20168] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20165] +++ exited with 0 +++ [pid 20163] +++ exited with 0 +++ [pid 20169] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20168] <... futex resumed>) = 1 [pid 20166] <... futex resumed>) = 0 [pid 20168] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20166] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20163, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20169] <... clone resumed>, parent_tid=[20170], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20170 [pid 20168] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20166] <... futex resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20169] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20168] pipe2( [pid 20166] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... restart_syscall resumed>) = 0 [pid 20169] <... futex resumed>) = 0 [pid 20168] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20169] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20168] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20167] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20166] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 20170 attached [pid 20168] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20167] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20166] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20170] set_robust_list(0x7f61a3ef39e0, 24 [pid 20168] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20167] <... futex resumed>) = 1 [pid 20166] <... futex resumed>) = 0 [pid 20164] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20168] dup(4 [pid 20167] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20166] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20164] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20168] <... dup resumed>) = 5 [pid 20167] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20164] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20168] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20167] write(5, NULL, 176 [pid 20164] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 20168] <... futex resumed>) = 1 [pid 20166] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20168] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20166] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20168] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20166] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20171 [pid 20168] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20166] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20167] <... write resumed>) = -1 EFAULT (Bad address) [pid 20167] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20164] <... futex resumed>) = 0 [pid 20167] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20164] exit_group(0 [pid 20167] <... futex resumed>) = ? [pid 20164] <... exit_group resumed>) = ? [pid 20167] +++ exited with 0 +++ ./strace-static-x86_64: Process 20171 attached [pid 20164] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20164, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 20170] <... set_robust_list resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20171] set_robust_list(0x555556ba76e0, 24 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 20170] mkdir("./file0", 0777 [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20172 attached [pid 20171] <... set_robust_list resumed>) = 0 [pid 20170] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20170] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20172 [pid 20171] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20170] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20171] <... prctl resumed>) = 0 [pid 20170] <... futex resumed>) = 1 [pid 20169] <... futex resumed>) = 0 [pid 20170] pipe2( [pid 20169] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20171] setpgid(0, 0 [pid 20169] <... futex resumed>) = 0 [pid 20169] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20170] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20171] <... setpgid resumed>) = 0 [pid 20170] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20170] <... futex resumed>) = 1 [pid 20169] <... futex resumed>) = 0 [pid 20168] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20169] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20168] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20169] <... futex resumed>) = 0 [pid 20168] <... futex resumed>) = 1 [pid 20166] <... futex resumed>) = 0 [pid 20170] dup(4 [pid 20169] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20168] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20166] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20171] <... openat resumed>) = 3 [pid 20170] <... dup resumed>) = 5 [pid 20168] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20166] <... futex resumed>) = 0 [pid 20171] write(3, "1000", 4 [pid 20170] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20168] write(5, NULL, 176 [pid 20166] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20171] <... write resumed>) = 4 [pid 20170] <... futex resumed>) = 1 [pid 20169] <... futex resumed>) = 0 [pid 20168] <... write resumed>) = -1 EFAULT (Bad address) [pid 20171] close(3 [pid 20170] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20169] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20168] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20171] <... close resumed>) = 0 [pid 20170] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20169] <... futex resumed>) = 0 [pid 20168] <... futex resumed>) = 1 [pid 20166] <... futex resumed>) = 0 [pid 20172] set_robust_list(0x555556ba76e0, 24 [pid 20171] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20170] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20169] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20168] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20166] exit_group(0 [pid 20172] <... set_robust_list resumed>) = 0 [pid 20171] <... futex resumed>) = 0 [pid 20168] <... futex resumed>) = ? [pid 20166] <... exit_group resumed>) = ? [pid 20171] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20168] +++ exited with 0 +++ [pid 20166] +++ exited with 0 +++ [pid 20171] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20171] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20166, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20171] <... mprotect resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20173 ./strace-static-x86_64: Process 20173 attached [pid 20173] set_robust_list(0x555556ba76e0, 24 [pid 20171] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20171] <... clone resumed>, parent_tid=[20174], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20174 [pid 20172] setpgid(0, 0 [pid 20171] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20172] <... setpgid resumed>) = 0 [pid 20171] <... futex resumed>) = 0 [pid 20171] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20170] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20173] <... set_robust_list resumed>) = 0 [pid 20173] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20172] <... openat resumed>) = 3 [pid 20170] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20172] write(3, "1000", 4 [pid 20173] <... prctl resumed>) = 0 [pid 20170] <... futex resumed>) = 1 [pid 20169] <... futex resumed>) = 0 [pid 20173] setpgid(0, 0 [pid 20172] <... write resumed>) = 4 [pid 20170] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20169] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20173] <... setpgid resumed>) = 0 [pid 20172] close(3 [pid 20170] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20169] <... futex resumed>) = 0 [pid 20173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20172] <... close resumed>) = 0 [pid 20170] write(5, NULL, 176 [pid 20169] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20174 attached [pid 20173] <... openat resumed>) = 3 [pid 20172] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20170] <... write resumed>) = -1 EFAULT (Bad address) [pid 20174] set_robust_list(0x7f61a3ef39e0, 24 [pid 20173] write(3, "1000", 4 [pid 20172] <... futex resumed>) = 0 [pid 20170] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20174] <... set_robust_list resumed>) = 0 [pid 20173] <... write resumed>) = 4 [pid 20174] mkdir("./file0", 0777 [pid 20173] close(3 [pid 20174] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20173] <... close resumed>) = 0 [pid 20174] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20173] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20174] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20173] <... futex resumed>) = 0 [pid 20174] <... futex resumed>) = 1 [pid 20173] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20172] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20171] <... futex resumed>) = 0 [pid 20170] <... futex resumed>) = 1 [pid 20169] <... futex resumed>) = 0 [pid 20174] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20173] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20172] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20171] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20170] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20169] exit_group(0 [pid 20174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20173] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20172] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20171] <... futex resumed>) = 0 [pid 20170] <... futex resumed>) = ? [pid 20169] <... exit_group resumed>) = ? [pid 20174] pipe2( [pid 20173] <... mprotect resumed>) = 0 [pid 20172] <... mprotect resumed>) = 0 [pid 20171] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20170] +++ exited with 0 +++ [pid 20172] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20175], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20175 [pid 20169] +++ exited with 0 +++ [pid 20172] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20173] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20169, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20174] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20172] <... futex resumed>) = 0 [pid 20174] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20173] <... clone resumed>, parent_tid=[20176], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20176 [pid 20172] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20174] <... futex resumed>) = 1 [pid 20173] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20171] <... futex resumed>) = 0 [pid 20174] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20173] <... futex resumed>) = 0 [pid 20171] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20173] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20171] <... futex resumed>) = 0 [pid 20174] dup(4 [pid 20171] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20174] <... dup resumed>) = 5 ./strace-static-x86_64: Process 20176 attached [pid 20174] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 20175 attached ) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20176] set_robust_list(0x7f61a3ef39e0, 24 [pid 20175] set_robust_list(0x7f61a3ef39e0, 24 [pid 20174] <... futex resumed>) = 1 [pid 20171] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20177 attached [pid 20174] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20171] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20176] <... set_robust_list resumed>) = 0 [pid 20175] <... set_robust_list resumed>) = 0 [pid 20174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20171] <... futex resumed>) = 0 [pid 20177] set_robust_list(0x555556ba76e0, 24 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20177 [pid 20177] <... set_robust_list resumed>) = 0 [pid 20176] mkdir("./file0", 0777 [pid 20175] mkdir("./file0", 0777 [pid 20174] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20171] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20177] setpgid(0, 0) = 0 [pid 20177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20177] write(3, "1000", 4) = 4 [pid 20177] close(3 [pid 20176] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20175] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20177] <... close resumed>) = 0 [pid 20176] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20175] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20177] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20177] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20177] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20177] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20178], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20178 [pid 20177] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20177] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20178 attached [pid 20178] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20178] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20178] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20178] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20177] <... futex resumed>) = 0 [pid 20177] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20177] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20178] <... futex resumed>) = 1 [pid 20178] pipe2([3, 4], 0) = 0 [pid 20178] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20177] <... futex resumed>) = 0 [pid 20177] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20177] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20176] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20175] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20178] <... futex resumed>) = 1 [pid 20176] <... futex resumed>) = 1 [pid 20173] <... futex resumed>) = 0 [pid 20173] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20173] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20178] dup(4 [pid 20176] pipe2( [pid 20175] <... futex resumed>) = 1 [pid 20174] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20172] <... futex resumed>) = 0 [pid 20178] <... dup resumed>) = 5 [pid 20176] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20175] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20174] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20172] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20178] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20176] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20175] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20174] <... futex resumed>) = 1 [pid 20172] <... futex resumed>) = 0 [pid 20171] <... futex resumed>) = 0 [pid 20178] <... futex resumed>) = 1 [pid 20177] <... futex resumed>) = 0 [pid 20176] <... futex resumed>) = 1 [pid 20175] pipe2( [pid 20174] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20173] <... futex resumed>) = 0 [pid 20172] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20171] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20178] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20177] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20176] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20175] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20173] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20171] <... futex resumed>) = 0 [pid 20178] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20177] <... futex resumed>) = 0 [pid 20176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20175] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20174] write(5, NULL, 176 [pid 20173] <... futex resumed>) = 0 [pid 20171] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20178] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20177] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20176] dup(4 [pid 20175] <... futex resumed>) = 1 [pid 20174] <... write resumed>) = -1 EFAULT (Bad address) [pid 20173] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20172] <... futex resumed>) = 0 [pid 20176] <... dup resumed>) = 5 [pid 20175] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20174] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20172] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20176] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20175] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20174] <... futex resumed>) = 1 [pid 20172] <... futex resumed>) = 0 [pid 20171] <... futex resumed>) = 0 [pid 20176] <... futex resumed>) = 1 [pid 20175] dup(4 [pid 20174] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20173] <... futex resumed>) = 0 [pid 20172] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20171] exit_group(0 [pid 20176] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20175] <... dup resumed>) = 5 [pid 20173] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20171] <... exit_group resumed>) = ? [pid 20174] <... futex resumed>) = ? [pid 20178] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20175] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20173] <... futex resumed>) = 0 [pid 20178] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20176] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20175] <... futex resumed>) = 1 [pid 20174] +++ exited with 0 +++ [pid 20173] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20172] <... futex resumed>) = 0 [pid 20171] +++ exited with 0 +++ [pid 20178] <... futex resumed>) = 1 [pid 20177] <... futex resumed>) = 0 [pid 20175] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20172] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20171, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20178] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20177] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20175] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20172] <... futex resumed>) = 0 [pid 20177] <... futex resumed>) = 0 [pid 20175] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20172] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20177] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20176] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20176] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20178] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20178] write(5, NULL, 176 [pid 20176] <... futex resumed>) = 1 [pid 20173] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20178] <... write resumed>) = -1 EFAULT (Bad address) [pid 20176] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20175] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20173] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20178] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20176] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20175] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20173] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20178] <... futex resumed>) = 1 [pid 20177] <... futex resumed>) = 0 [pid 20176] write(5, NULL, 176 [pid 20175] <... futex resumed>) = 1 [pid 20173] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20172] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20178] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20177] exit_group(0 [pid 20176] <... write resumed>) = -1 EFAULT (Bad address) [pid 20175] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20172] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 20178] <... futex resumed>) = ? [pid 20177] <... exit_group resumed>) = ? [pid 20176] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20175] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20172] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20176] <... futex resumed>) = 1 [pid 20175] write(5, NULL, 176 [pid 20173] <... futex resumed>) = 0 [pid 20172] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20176] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20175] <... write resumed>) = -1 EFAULT (Bad address) [pid 20173] exit_group(0 [pid 20176] <... futex resumed>) = ? [pid 20175] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20173] <... exit_group resumed>) = ? [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20179 [pid 20176] +++ exited with 0 +++ [pid 20175] <... futex resumed>) = 1 [pid 20173] +++ exited with 0 +++ [pid 20172] <... futex resumed>) = 0 [pid 20175] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20172] exit_group(0 [pid 20175] <... futex resumed>) = ? [pid 20172] <... exit_group resumed>) = ? [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20173, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20178] +++ exited with 0 +++ [pid 20177] +++ exited with 0 +++ [pid 20175] +++ exited with 0 +++ [pid 20172] +++ exited with 0 +++ [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20172, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3601] <... restart_syscall resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20177, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3606] <... openat resumed>) = 3 [pid 3604] <... openat resumed>) = 3 [pid 3601] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] close(3 [pid 3606] <... close resumed>) = 0 [pid 3604] close(3 [pid 3601] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... close resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20180 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20181 ./strace-static-x86_64: Process 20181 attached [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20181] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20181] setpgid(0, 0) = 0 [pid 20181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 20180 attached [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20182 [pid 20181] <... openat resumed>) = 3 [pid 20180] set_robust_list(0x555556ba76e0, 24 [pid 20181] write(3, "1000", 4 [pid 20180] <... set_robust_list resumed>) = 0 [pid 20181] <... write resumed>) = 4 [pid 20180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20181] close(3 [pid 20180] <... prctl resumed>) = 0 [pid 20181] <... close resumed>) = 0 [pid 20181] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20180] setpgid(0, 0./strace-static-x86_64: Process 20182 attached [pid 20181] <... futex resumed>) = 0 [pid 20180] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 20179 attached [pid 20181] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20182] set_robust_list(0x555556ba76e0, 24 [pid 20181] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20180] <... openat resumed>) = 3 [pid 20181] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20180] write(3, "1000", 4 [pid 20182] <... set_robust_list resumed>) = 0 [pid 20181] <... mprotect resumed>) = 0 [pid 20180] <... write resumed>) = 4 [pid 20179] set_robust_list(0x555556ba76e0, 24 [pid 20181] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20180] close(3 [pid 20182] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20180] <... close resumed>) = 0 [pid 20179] <... set_robust_list resumed>) = 0 [pid 20181] <... clone resumed>, parent_tid=[20183], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20183 [pid 20180] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20182] <... prctl resumed>) = 0 [pid 20181] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20180] <... futex resumed>) = 0 [pid 20179] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20181] <... futex resumed>) = 0 [pid 20180] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20179] <... prctl resumed>) = 0 [pid 20182] setpgid(0, 0 [pid 20181] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20180] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20180] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20179] setpgid(0, 0 [pid 20182] <... setpgid resumed>) = 0 [pid 20180] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20179] <... setpgid resumed>) = 0 [pid 20182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20180] <... clone resumed>, parent_tid=[20184], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20184 [pid 20180] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 20183 attached [pid 20182] <... openat resumed>) = 3 [pid 20180] <... futex resumed>) = 0 [pid 20183] set_robust_list(0x7f61a3ef39e0, 24 [pid 20182] write(3, "1000", 4 [pid 20180] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20179] <... openat resumed>) = 3 [pid 20183] <... set_robust_list resumed>) = 0 [pid 20182] <... write resumed>) = 4 [pid 20179] write(3, "1000", 4 [pid 20183] mkdir("./file0", 0777 [pid 20182] close(3 [pid 20179] <... write resumed>) = 4 [pid 20183] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20182] <... close resumed>) = 0 [pid 20179] close(3./strace-static-x86_64: Process 20184 attached [pid 20183] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20182] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20179] <... close resumed>) = 0 [pid 20184] set_robust_list(0x7f61a3ef39e0, 24 [pid 20183] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20182] <... futex resumed>) = 0 [pid 20179] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20184] <... set_robust_list resumed>) = 0 [pid 20183] <... futex resumed>) = 1 [pid 20182] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20181] <... futex resumed>) = 0 [pid 20179] <... futex resumed>) = 0 [pid 20184] mkdir("./file0", 0777 [pid 20183] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20182] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20181] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20179] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20184] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20183] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20182] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20181] <... futex resumed>) = 0 [pid 20179] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20184] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20183] pipe2( [pid 20182] <... mprotect resumed>) = 0 [pid 20181] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20179] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20184] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20183] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20182] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20179] <... mprotect resumed>) = 0 [pid 20184] <... futex resumed>) = 1 [pid 20183] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20180] <... futex resumed>) = 0 [pid 20179] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20184] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20183] <... futex resumed>) = 1 [pid 20182] <... clone resumed>, parent_tid=[20185], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20185 [pid 20181] <... futex resumed>) = 0 [pid 20180] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20183] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20182] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20181] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20180] <... futex resumed>) = 0 [pid 20184] pipe2( [pid 20183] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20182] <... futex resumed>) = 0 [pid 20181] <... futex resumed>) = 0 [pid 20180] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20179] <... clone resumed>, parent_tid=[20186], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20186 [pid 20184] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20183] dup(4 [pid 20182] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20181] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20179] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20184] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20183] <... dup resumed>) = 5 [pid 20179] <... futex resumed>) = 0 [pid 20184] <... futex resumed>) = 1 [pid 20183] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20180] <... futex resumed>) = 0 [pid 20179] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20184] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20183] <... futex resumed>) = 1 [pid 20181] <... futex resumed>) = 0 [pid 20180] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20183] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20181] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20180] <... futex resumed>) = 0 [pid 20184] dup(4 [pid 20183] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20181] <... futex resumed>) = 0 [pid 20180] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20184] <... dup resumed>) = 5 [pid 20183] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20181] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20186 attached ./strace-static-x86_64: Process 20185 attached [pid 20184] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20185] set_robust_list(0x7f61a3ef39e0, 24 [pid 20184] <... futex resumed>) = 1 [pid 20180] <... futex resumed>) = 0 [pid 20186] set_robust_list(0x7f61a3ef39e0, 24 [pid 20184] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20180] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20185] <... set_robust_list resumed>) = 0 [pid 20186] <... set_robust_list resumed>) = 0 [pid 20184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20180] <... futex resumed>) = 0 [pid 20184] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20180] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20186] mkdir("./file0", 0777 [pid 20185] mkdir("./file0", 0777 [pid 20186] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20185] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20183] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20186] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20185] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20183] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20186] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20185] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20183] <... futex resumed>) = 1 [pid 20181] <... futex resumed>) = 0 [pid 20186] <... futex resumed>) = 1 [pid 20185] <... futex resumed>) = 1 [pid 20184] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20183] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20182] <... futex resumed>) = 0 [pid 20181] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20179] <... futex resumed>) = 0 [pid 20186] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20185] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20184] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20183] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20182] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20181] <... futex resumed>) = 0 [pid 20179] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20184] <... futex resumed>) = 1 [pid 20183] write(5, NULL, 176 [pid 20182] <... futex resumed>) = 0 [pid 20181] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20180] <... futex resumed>) = 0 [pid 20179] <... futex resumed>) = 0 [pid 20186] pipe2( [pid 20185] pipe2( [pid 20184] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20183] <... write resumed>) = -1 EFAULT (Bad address) [pid 20182] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20180] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20179] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20186] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20185] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20183] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20180] <... futex resumed>) = 0 [pid 20186] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20185] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20184] write(5, NULL, 176 [pid 20183] <... futex resumed>) = 1 [pid 20181] <... futex resumed>) = 0 [pid 20180] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20186] <... futex resumed>) = 1 [pid 20185] <... futex resumed>) = 1 [pid 20184] <... write resumed>) = -1 EFAULT (Bad address) [pid 20183] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20182] <... futex resumed>) = 0 [pid 20181] exit_group(0 [pid 20179] <... futex resumed>) = 0 [pid 20186] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20185] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20184] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20183] <... futex resumed>) = ? [pid 20182] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20181] <... exit_group resumed>) = ? [pid 20179] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20184] <... futex resumed>) = 1 [pid 20183] +++ exited with 0 +++ [pid 20182] <... futex resumed>) = 0 [pid 20180] <... futex resumed>) = 0 [pid 20179] <... futex resumed>) = 0 [pid 20186] dup(4 [pid 20185] dup(4 [pid 20184] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20182] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20181] +++ exited with 0 +++ [pid 20180] exit_group(0 [pid 20179] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20186] <... dup resumed>) = 5 [pid 20185] <... dup resumed>) = 5 [pid 20184] <... futex resumed>) = ? [pid 20180] <... exit_group resumed>) = ? [pid 20186] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20185] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20184] +++ exited with 0 +++ [pid 20186] <... futex resumed>) = 1 [pid 20185] <... futex resumed>) = 1 [pid 20182] <... futex resumed>) = 0 [pid 20180] +++ exited with 0 +++ [pid 20179] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20181, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20186] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20185] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20182] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20179] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20182] <... futex resumed>) = 0 [pid 20179] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20180, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] <... restart_syscall resumed>) = 0 [pid 20186] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20185] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20182] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20179] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... openat resumed>) = 3 [pid 3606] close(3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3606] <... close resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] close(3) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20187 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20188 ./strace-static-x86_64: Process 20187 attached [pid 20187] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20187] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 20188 attached ) = 0 [pid 20188] set_robust_list(0x555556ba76e0, 24 [pid 20187] setpgid(0, 0 [pid 20188] <... set_robust_list resumed>) = 0 [pid 20187] <... setpgid resumed>) = 0 [pid 20188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20188] <... prctl resumed>) = 0 [pid 20187] <... openat resumed>) = 3 [pid 20188] setpgid(0, 0 [pid 20187] write(3, "1000", 4 [pid 20188] <... setpgid resumed>) = 0 [pid 20187] <... write resumed>) = 4 [pid 20188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20187] close(3 [pid 20188] <... openat resumed>) = 3 [pid 20188] write(3, "1000", 4 [pid 20187] <... close resumed>) = 0 [pid 20188] <... write resumed>) = 4 [pid 20187] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20188] close(3 [pid 20187] <... futex resumed>) = 0 [pid 20188] <... close resumed>) = 0 [pid 20187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20188] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20187] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20188] <... futex resumed>) = 0 [pid 20187] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20188] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20187] <... mprotect resumed>) = 0 [pid 20188] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20187] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20188] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20187] <... clone resumed>, parent_tid=[20189], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20189 [pid 20185] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20188] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20187] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20185] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20187] <... futex resumed>) = 0 [pid 20185] <... futex resumed>) = 1 [pid 20182] <... futex resumed>) = 0 [pid 20188] <... clone resumed>, parent_tid=[20190], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20190 [pid 20187] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20186] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20185] write(5, NULL, 176 [pid 20182] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20188] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20185] <... write resumed>) = -1 EFAULT (Bad address) [pid 20182] <... futex resumed>) = 0 [pid 20186] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20188] <... futex resumed>) = 0 [pid 20185] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20182] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20179] <... futex resumed>) = 0 [pid 20186] <... futex resumed>) = 1 [pid 20188] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20185] <... futex resumed>) = 0 [pid 20182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20179] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20189 attached [pid 20186] write(5, NULL, 176 [pid 20185] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20182] exit_group(0 [pid 20179] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20190 attached [pid 20189] set_robust_list(0x7f61a3ef39e0, 24 [pid 20186] <... write resumed>) = -1 EFAULT (Bad address) [pid 20185] <... futex resumed>) = ? [pid 20182] <... exit_group resumed>) = ? [pid 20179] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20190] set_robust_list(0x7f61a3ef39e0, 24 [pid 20189] <... set_robust_list resumed>) = 0 [pid 20186] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20179] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20190] <... set_robust_list resumed>) = 0 [pid 20189] mkdir("./file0", 0777 [pid 20179] exit_group(0 [pid 20190] mkdir("./file0", 0777 [pid 20189] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20179] <... exit_group resumed>) = ? [pid 20185] +++ exited with 0 +++ [pid 20182] +++ exited with 0 +++ [pid 20186] <... futex resumed>) = ? [pid 20190] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20189] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20190] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20189] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20190] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20189] <... futex resumed>) = 1 [pid 20187] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20182, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20190] <... futex resumed>) = 1 [pid 20189] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20188] <... futex resumed>) = 0 [pid 20187] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20186] +++ exited with 0 +++ [pid 20179] +++ exited with 0 +++ [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20190] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20189] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20188] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20187] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20189] pipe2( [pid 20188] <... futex resumed>) = 0 [pid 20187] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20179, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20190] pipe2( [pid 20189] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20188] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20190] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20189] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20190] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20189] <... futex resumed>) = 1 [pid 20187] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20190] <... futex resumed>) = 1 [pid 20189] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20188] <... futex resumed>) = 0 [pid 20187] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3 [pid 20190] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20189] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20188] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20187] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20189] dup(4 [pid 20188] <... futex resumed>) = 0 [pid 20187] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20190] dup(4 [pid 20189] <... dup resumed>) = 5 [pid 20188] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20190] <... dup resumed>) = 5 [pid 20189] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20190] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20189] <... futex resumed>) = 1 [pid 20187] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20191 [pid 20190] <... futex resumed>) = 1 [pid 20189] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20188] <... futex resumed>) = 0 [pid 20187] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20190] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20189] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20188] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20187] <... futex resumed>) = 0 [pid 20190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20189] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20188] <... futex resumed>) = 0 [pid 20187] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20192 [pid 20190] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20188] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20192 attached ./strace-static-x86_64: Process 20191 attached [pid 20192] set_robust_list(0x555556ba76e0, 24 [pid 20191] set_robust_list(0x555556ba76e0, 24 [pid 20192] <... set_robust_list resumed>) = 0 [pid 20191] <... set_robust_list resumed>) = 0 [pid 20192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20191] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20192] <... prctl resumed>) = 0 [pid 20191] <... prctl resumed>) = 0 [pid 20192] setpgid(0, 0 [pid 20191] setpgid(0, 0 [pid 20192] <... setpgid resumed>) = 0 [pid 20191] <... setpgid resumed>) = 0 [pid 20192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20192] <... openat resumed>) = 3 [pid 20191] <... openat resumed>) = 3 [pid 20192] write(3, "1000", 4 [pid 20191] write(3, "1000", 4 [pid 20192] <... write resumed>) = 4 [pid 20191] <... write resumed>) = 4 [pid 20192] close(3 [pid 20191] close(3) = 0 [pid 20192] <... close resumed>) = 0 [pid 20192] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20191] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20192] <... futex resumed>) = 0 [pid 20191] <... futex resumed>) = 0 [pid 20192] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20191] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20190] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20192] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20191] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20190] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20189] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20192] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20191] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20190] <... futex resumed>) = 1 [pid 20189] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20188] <... futex resumed>) = 0 [pid 20192] <... mprotect resumed>) = 0 [pid 20191] <... mprotect resumed>) = 0 [pid 20192] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20191] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20192] <... clone resumed>, parent_tid=[20193], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20193 [pid 20191] <... clone resumed>, parent_tid=[20194], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20194 [pid 20192] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20191] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20188] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20192] <... futex resumed>) = 0 [pid 20191] <... futex resumed>) = 0 [pid 20190] write(5, NULL, 176 [pid 20189] <... futex resumed>) = 1 [pid 20188] <... futex resumed>) = 0 [pid 20187] <... futex resumed>) = 0 [pid 20192] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20191] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20190] <... write resumed>) = -1 EFAULT (Bad address) [pid 20189] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20188] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20187] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20190] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20189] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20187] <... futex resumed>) = 0 [pid 20190] <... futex resumed>) = 1 [pid 20189] write(5, NULL, 176 [pid 20188] <... futex resumed>) = 0 [pid 20187] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20193 attached [pid 20190] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20189] <... write resumed>) = -1 EFAULT (Bad address) [pid 20188] exit_group(0 [pid 20189] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20193] set_robust_list(0x7f61a3ef39e0, 24 [pid 20190] <... futex resumed>) = ? [pid 20189] <... futex resumed>) = 1 [pid 20188] <... exit_group resumed>) = ? [pid 20187] <... futex resumed>) = 0 [pid 20193] <... set_robust_list resumed>) = 0 [pid 20190] +++ exited with 0 +++ [pid 20193] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20189] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20188] +++ exited with 0 +++ [pid 20187] exit_group(0 [pid 20193] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20189] <... futex resumed>) = ? [pid 20187] <... exit_group resumed>) = ? [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20188, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20193] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20189] +++ exited with 0 +++ [pid 20193] <... futex resumed>) = 1 [pid 20192] <... futex resumed>) = 0 [pid 20193] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20192] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20187] +++ exited with 0 +++ ./strace-static-x86_64: Process 20194 attached [pid 20193] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20192] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20187, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20194] set_robust_list(0x7f61a3ef39e0, 24 [pid 20193] pipe2( [pid 20192] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20194] <... set_robust_list resumed>) = 0 [pid 20193] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20194] mkdir("./file0", 0777 [pid 20193] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20194] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20193] <... futex resumed>) = 1 [pid 20192] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20194] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20193] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20192] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3601] <... openat resumed>) = 3 [pid 20194] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20193] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20192] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20194] <... futex resumed>) = 1 [pid 20193] dup(4 [pid 20192] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20191] <... futex resumed>) = 0 [pid 3606] close(3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20194] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20193] <... dup resumed>) = 5 [pid 20191] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20194] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20193] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20191] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] close(3 [pid 20194] pipe2( [pid 20193] <... futex resumed>) = 1 [pid 20192] <... futex resumed>) = 0 [pid 20191] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20194] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20193] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20192] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20194] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20193] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20192] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20195 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20194] <... futex resumed>) = 1 [pid 20193] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20192] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20191] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20196 attached ./strace-static-x86_64: Process 20195 attached [pid 20194] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20193] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20191] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20196] set_robust_list(0x555556ba76e0, 24 [pid 20195] set_robust_list(0x555556ba76e0, 24 [pid 20194] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20193] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20191] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20196 [pid 20196] <... set_robust_list resumed>) = 0 [pid 20195] <... set_robust_list resumed>) = 0 [pid 20194] dup(4 [pid 20193] <... futex resumed>) = 1 [pid 20192] <... futex resumed>) = 0 [pid 20191] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20196] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20195] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20194] <... dup resumed>) = 5 [pid 20193] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20192] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20196] <... prctl resumed>) = 0 [pid 20195] <... prctl resumed>) = 0 [pid 20194] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20193] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20192] <... futex resumed>) = 0 [pid 20196] setpgid(0, 0 [pid 20195] setpgid(0, 0 [pid 20194] <... futex resumed>) = 1 [pid 20193] write(5, NULL, 176 [pid 20192] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20191] <... futex resumed>) = 0 [pid 20196] <... setpgid resumed>) = 0 [pid 20195] <... setpgid resumed>) = 0 [pid 20194] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20193] <... write resumed>) = -1 EFAULT (Bad address) [pid 20191] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20194] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20193] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20191] <... futex resumed>) = 0 [pid 20196] <... openat resumed>) = 3 [pid 20195] <... openat resumed>) = 3 [pid 20194] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20193] <... futex resumed>) = 1 [pid 20192] <... futex resumed>) = 0 [pid 20191] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20196] write(3, "1000", 4 [pid 20195] write(3, "1000", 4 [pid 20193] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20192] exit_group(0 [pid 20196] <... write resumed>) = 4 [pid 20193] <... futex resumed>) = ? [pid 20192] <... exit_group resumed>) = ? [pid 20196] close(3 [pid 20195] <... write resumed>) = 4 [pid 20193] +++ exited with 0 +++ [pid 20192] +++ exited with 0 +++ [pid 20196] <... close resumed>) = 0 [pid 20195] close(3 [pid 20196] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20195] <... close resumed>) = 0 [pid 20196] <... futex resumed>) = 0 [pid 20195] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20196] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20195] <... futex resumed>) = 0 [pid 20196] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20195] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20196] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20195] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20196] <... mprotect resumed>) = 0 [pid 20195] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20196] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20195] <... mprotect resumed>) = 0 [pid 20195] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20196] <... clone resumed>, parent_tid=[20197], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20197 [pid 20196] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20195] <... clone resumed>, parent_tid=[20198], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20198 [pid 20196] <... futex resumed>) = 0 [pid 20195] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20196] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20195] <... futex resumed>) = 0 [pid 20195] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20198 attached ./strace-static-x86_64: Process 20197 attached [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20192, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20198] set_robust_list(0x7f61a3ef39e0, 24 [pid 20197] set_robust_list(0x7f61a3ef39e0, 24 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20198] <... set_robust_list resumed>) = 0 [pid 20197] <... set_robust_list resumed>) = 0 [pid 20194] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] <... openat resumed>) = 3 [pid 20198] mkdir("./file0", 0777 [pid 20197] mkdir("./file0", 0777 [pid 20194] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20198] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20197] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20194] <... futex resumed>) = 1 [pid 20191] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20194] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20191] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20198] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20197] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20194] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20191] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20194] write(5, NULL, 176 [pid 20191] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20198] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20197] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20194] <... write resumed>) = -1 EFAULT (Bad address) [pid 20194] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20198] <... futex resumed>) = 1 [pid 20197] <... futex resumed>) = 1 [pid 20196] <... futex resumed>) = 0 [pid 20195] <... futex resumed>) = 0 [pid 20194] <... futex resumed>) = 1 [pid 20191] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20199 attached [pid 20198] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20197] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20196] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20195] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20194] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20191] exit_group(0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20199 [pid 20198] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20196] <... futex resumed>) = 0 [pid 20195] <... futex resumed>) = 0 [pid 20194] <... futex resumed>) = ? [pid 20191] <... exit_group resumed>) = ? [pid 20199] set_robust_list(0x555556ba76e0, 24 [pid 20198] pipe2( [pid 20197] pipe2( [pid 20196] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20195] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20194] +++ exited with 0 +++ [pid 20191] +++ exited with 0 +++ [pid 20199] <... set_robust_list resumed>) = 0 [pid 20198] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20197] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20191, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20198] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20197] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20199] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20198] <... futex resumed>) = 1 [pid 20197] <... futex resumed>) = 1 [pid 20196] <... futex resumed>) = 0 [pid 20195] <... futex resumed>) = 0 [pid 20199] <... prctl resumed>) = 0 [pid 20198] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20197] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20196] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20195] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20199] setpgid(0, 0 [pid 20198] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20196] <... futex resumed>) = 0 [pid 20195] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20199] <... setpgid resumed>) = 0 [pid 20198] dup(4 [pid 20197] dup(4 [pid 20196] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20195] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20198] <... dup resumed>) = 5 [pid 20197] <... dup resumed>) = 5 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20198] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20197] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20199] <... openat resumed>) = 3 [pid 3607] close(3 [pid 20199] write(3, "1000", 4 [pid 20198] <... futex resumed>) = 1 [pid 20197] <... futex resumed>) = 1 [pid 20196] <... futex resumed>) = 0 [pid 20195] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20199] <... write resumed>) = 4 [pid 20198] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20197] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20196] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20195] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20199] close(3 [pid 20198] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20196] <... futex resumed>) = 0 [pid 20195] <... futex resumed>) = 0 [pid 20199] <... close resumed>) = 0 [pid 20198] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20197] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20196] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20195] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20200 attached [pid 20199] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20200 [pid 20200] set_robust_list(0x555556ba76e0, 24 [pid 20199] <... futex resumed>) = 0 [pid 20198] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20200] <... set_robust_list resumed>) = 0 [pid 20199] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20198] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20200] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20199] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20198] <... futex resumed>) = 1 [pid 20197] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20195] <... futex resumed>) = 0 [pid 20200] <... prctl resumed>) = 0 [pid 20199] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20198] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20197] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20195] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20200] setpgid(0, 0 [pid 20199] <... mprotect resumed>) = 0 [pid 20198] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20197] <... futex resumed>) = 1 [pid 20196] <... futex resumed>) = 0 [pid 20195] <... futex resumed>) = 0 [pid 20200] <... setpgid resumed>) = 0 [pid 20199] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20198] write(5, NULL, 176 [pid 20197] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20196] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20195] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20198] <... write resumed>) = -1 EFAULT (Bad address) [pid 20197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20196] <... futex resumed>) = 0 [pid 20200] <... openat resumed>) = 3 [pid 20199] <... clone resumed>, parent_tid=[20201], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20201 [pid 20198] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20197] write(5, NULL, 176 [pid 20196] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20200] write(3, "1000", 4 [pid 20199] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20198] <... futex resumed>) = 1 [pid 20197] <... write resumed>) = -1 EFAULT (Bad address) [pid 20195] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20201 attached [pid 20200] <... write resumed>) = 4 [pid 20199] <... futex resumed>) = 0 [pid 20198] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20197] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20195] exit_group(0 [pid 20200] close(3 [pid 20199] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20198] <... futex resumed>) = ? [pid 20197] <... futex resumed>) = 1 [pid 20196] <... futex resumed>) = 0 [pid 20195] <... exit_group resumed>) = ? [pid 20201] set_robust_list(0x7f61a3ef39e0, 24 [pid 20200] <... close resumed>) = 0 [pid 20198] +++ exited with 0 +++ [pid 20197] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20196] exit_group(0 [pid 20195] +++ exited with 0 +++ [pid 20201] <... set_robust_list resumed>) = 0 [pid 20200] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20197] <... futex resumed>) = ? [pid 20196] <... exit_group resumed>) = ? [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20195, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20201] mkdir("./file0", 0777 [pid 20200] <... futex resumed>) = 0 [pid 20197] +++ exited with 0 +++ [pid 20201] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20200] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20196] +++ exited with 0 +++ [pid 20200] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20196, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20201] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20200] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20201] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20200] <... mprotect resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20201] <... futex resumed>) = 1 [pid 20200] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20199] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20201] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20199] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20201] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20200] <... clone resumed>, parent_tid=[20202], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20202 [pid 20199] <... futex resumed>) = 0 [pid 3606] close(3 [pid 3601] <... openat resumed>) = 3 [pid 20201] pipe2( [pid 20200] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20199] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... close resumed>) = 0 ./strace-static-x86_64: Process 20202 attached [pid 20202] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20202] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20202] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20202] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20202] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20203 [pid 20201] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20201] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20199] <... futex resumed>) = 0 [pid 20201] dup(4 [pid 20199] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20201] <... dup resumed>) = 5 [pid 20199] <... futex resumed>) = 0 [pid 20201] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20199] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20201] <... futex resumed>) = 0 [pid 20199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20201] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20199] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20201] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20199] <... futex resumed>) = 0 [pid 20201] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20199] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20203 attached [pid 20202] <... futex resumed>) = 0 [pid 20200] <... futex resumed>) = 1 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20204 attached [pid 20203] set_robust_list(0x555556ba76e0, 24 [pid 20202] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20200] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20204] set_robust_list(0x555556ba76e0, 24 [pid 20203] <... set_robust_list resumed>) = 0 [pid 20200] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20204 [pid 20204] <... set_robust_list resumed>) = 0 [pid 20203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20200] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20204] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20203] <... prctl resumed>) = 0 [pid 20202] <... futex resumed>) = 0 [pid 20200] <... futex resumed>) = 1 [pid 20204] <... prctl resumed>) = 0 [pid 20203] setpgid(0, 0 [pid 20202] pipe2( [pid 20200] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20204] setpgid(0, 0 [pid 20203] <... setpgid resumed>) = 0 [pid 20202] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20201] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20204] <... setpgid resumed>) = 0 [pid 20203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20202] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20201] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20203] <... openat resumed>) = 3 [pid 20200] <... futex resumed>) = 0 [pid 20202] <... futex resumed>) = 1 [pid 20199] <... futex resumed>) = 0 [pid 20201] <... futex resumed>) = 1 [pid 20204] <... openat resumed>) = 3 [pid 20203] write(3, "1000", 4 [pid 20202] dup(4 [pid 20200] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20199] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20204] write(3, "1000", 4 [pid 20203] <... write resumed>) = 4 [pid 20202] <... dup resumed>) = 5 [pid 20201] write(5, NULL, 176 [pid 20200] <... futex resumed>) = 0 [pid 20199] <... futex resumed>) = 0 [pid 20204] <... write resumed>) = 4 [pid 20203] close(3 [pid 20202] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20201] <... write resumed>) = -1 EFAULT (Bad address) [pid 20200] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20199] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20204] close(3 [pid 20203] <... close resumed>) = 0 [pid 20202] <... futex resumed>) = 0 [pid 20201] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20200] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20204] <... close resumed>) = 0 [pid 20203] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20202] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20201] <... futex resumed>) = 0 [pid 20200] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20199] exit_group(0 [pid 20204] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20203] <... futex resumed>) = 0 [pid 20202] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20200] <... futex resumed>) = 0 [pid 20199] <... exit_group resumed>) = ? [pid 20204] <... futex resumed>) = 0 [pid 20203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20202] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20201] +++ exited with 0 +++ [pid 20200] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20204] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20203] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20199] +++ exited with 0 +++ [pid 20204] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20203] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20204] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20203] <... mprotect resumed>) = 0 [pid 20204] <... mprotect resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20199, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20204] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20203] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 20204] <... clone resumed>, parent_tid=[20205], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20205 [pid 20203] <... clone resumed>, parent_tid=[20206], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20206 [pid 20204] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20203] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20204] <... futex resumed>) = 0 [pid 20203] <... futex resumed>) = 0 [pid 20204] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20203] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20202] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20202] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 20202] <... futex resumed>) = 1 [pid 20200] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20202] write(5, NULL, 176 [pid 20200] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20202] <... write resumed>) = -1 EFAULT (Bad address) [pid 20200] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20202] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20200] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20206 attached [pid 20202] <... futex resumed>) = 0 [pid 20200] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] close(3 [pid 20202] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20200] exit_group(0 [pid 3604] <... close resumed>) = 0 [pid 20200] <... exit_group resumed>) = ? [pid 20206] set_robust_list(0x7f61a3ef39e0, 24 [pid 20202] <... futex resumed>) = ? [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20206] <... set_robust_list resumed>) = 0 [pid 20206] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20206] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20207 [pid 20206] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20203] <... futex resumed>) = 0 [pid 20206] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20203] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20203] <... futex resumed>) = 0 [pid 20202] +++ exited with 0 +++ [pid 20200] +++ exited with 0 +++ [pid 20206] pipe2( [pid 20203] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20205 attached [pid 20206] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20200, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 20207 attached [pid 20206] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20206] <... futex resumed>) = 1 [pid 20205] set_robust_list(0x7f61a3ef39e0, 24 [pid 20203] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20207] set_robust_list(0x555556ba76e0, 24 [pid 20206] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20203] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20203] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20206] dup(4 [pid 20203] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] close(3 [pid 20207] <... set_robust_list resumed>) = 0 [pid 20206] <... dup resumed>) = 5 [pid 20205] <... set_robust_list resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20207] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20205] mkdir("./file0", 0777 [pid 20207] <... prctl resumed>) = 0 [pid 20205] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20207] setpgid(0, 0 [pid 20205] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20207] <... setpgid resumed>) = 0 [pid 20205] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20206] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20205] <... futex resumed>) = 1 [pid 20204] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20207] <... openat resumed>) = 3 [pid 20206] <... futex resumed>) = 1 [pid 20205] pipe2( [pid 20204] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20203] <... futex resumed>) = 0 [pid 20207] write(3, "1000", 4 [pid 20206] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20205] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20204] <... futex resumed>) = 0 [pid 20203] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20208 [pid 20207] <... write resumed>) = 4 [pid 20206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20205] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20204] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20203] <... futex resumed>) = 0 [pid 20207] close(3 [pid 20206] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20205] <... futex resumed>) = 0 [pid 20207] <... close resumed>) = 0 [pid 20205] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20207] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20203] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20207] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20204] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20207] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20205] <... futex resumed>) = 0 [pid 20204] <... futex resumed>) = 1 [pid 20207] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20205] dup(4 [pid 20204] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20207] <... mprotect resumed>) = 0 [pid 20205] <... dup resumed>) = 5 [pid 20207] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20205] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20204] <... futex resumed>) = 0 [pid 20207] <... clone resumed>, parent_tid=[20209], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20209 [pid 20205] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20207] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20207] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20209 attached [pid 20204] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20205] <... futex resumed>) = 0 [pid 20204] <... futex resumed>) = 1 [pid 20205] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20204] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20208 attached [pid 20206] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20206] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20208] set_robust_list(0x555556ba76e0, 24 [pid 20206] <... futex resumed>) = 1 [pid 20203] <... futex resumed>) = 0 [pid 20209] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20208] <... set_robust_list resumed>) = 0 [pid 20206] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20203] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20209] mkdir("./file0", 0777 [pid 20208] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20203] <... futex resumed>) = 0 [pid 20209] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20208] <... prctl resumed>) = 0 [pid 20206] write(5, NULL, 176 [pid 20203] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20209] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20208] setpgid(0, 0 [pid 20206] <... write resumed>) = -1 EFAULT (Bad address) [pid 20209] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20208] <... setpgid resumed>) = 0 [pid 20206] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20209] <... futex resumed>) = 1 [pid 20208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20207] <... futex resumed>) = 0 [pid 20206] <... futex resumed>) = 1 [pid 20205] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20203] <... futex resumed>) = 0 [pid 20209] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20208] <... openat resumed>) = 3 [pid 20207] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20206] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20205] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20203] exit_group(0 [pid 20209] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20208] write(3, "1000", 4 [pid 20207] <... futex resumed>) = 0 [pid 20206] <... futex resumed>) = ? [pid 20205] <... futex resumed>) = 1 [pid 20204] <... futex resumed>) = 0 [pid 20203] <... exit_group resumed>) = ? [pid 20209] pipe2( [pid 20208] <... write resumed>) = 4 [pid 20207] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20206] +++ exited with 0 +++ [pid 20205] write(5, NULL, 176 [pid 20204] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20209] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20208] close(3 [pid 20205] <... write resumed>) = -1 EFAULT (Bad address) [pid 20204] <... futex resumed>) = 0 [pid 20203] +++ exited with 0 +++ [pid 20209] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20208] <... close resumed>) = 0 [pid 20205] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20204] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20203, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20209] <... futex resumed>) = 1 [pid 20208] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20207] <... futex resumed>) = 0 [pid 20205] <... futex resumed>) = 0 [pid 20204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20209] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20208] <... futex resumed>) = 0 [pid 20207] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20205] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20204] exit_group(0 [pid 20209] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20207] <... futex resumed>) = 0 [pid 20205] <... futex resumed>) = ? [pid 20204] <... exit_group resumed>) = ? [pid 20209] dup(4 [pid 20208] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20207] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20205] +++ exited with 0 +++ [pid 20209] <... dup resumed>) = 5 [pid 20208] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20204] +++ exited with 0 +++ [pid 20209] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20208] <... mprotect resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20204, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20209] <... futex resumed>) = 1 [pid 20208] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20207] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20209] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20207] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20209] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20208] <... clone resumed>, parent_tid=[20210], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20210 [pid 20207] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20209] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20208] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20207] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... openat resumed>) = 3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20208] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20208] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20210 attached [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20211 [pid 20210] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20210] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20210] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20210] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20210] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20211 attached [pid 20208] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20208] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20211] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20210] <... futex resumed>) = 0 [pid 20208] <... futex resumed>) = 1 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20210] pipe2( [pid 20208] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20210] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20211] setpgid(0, 0 [pid 20210] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20211] <... setpgid resumed>) = 0 [pid 20210] <... futex resumed>) = 1 [pid 20208] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20212 [pid 20211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20210] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20208] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20211] <... openat resumed>) = 3 [pid 20210] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20208] <... futex resumed>) = 0 [pid 20211] write(3, "1000", 4 [pid 20210] dup(4 [pid 20208] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20211] <... write resumed>) = 4 [pid 20210] <... dup resumed>) = 5 [pid 20211] close(3 [pid 20210] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20211] <... close resumed>) = 0 [pid 20210] <... futex resumed>) = 1 [pid 20208] <... futex resumed>) = 0 [pid 20211] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20210] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20208] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20211] <... futex resumed>) = 0 [pid 20210] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20208] <... futex resumed>) = 0 [pid 20211] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20210] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20208] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20211] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20211] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20211] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20213], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20213 [pid 20211] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20211] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20213 attached [pid 20213] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20209] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20209] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20212 attached ) = 1 [pid 20207] <... futex resumed>) = 0 [pid 20212] set_robust_list(0x555556ba76e0, 24 [pid 20209] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20207] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20209] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20207] <... futex resumed>) = 0 [pid 20209] write(5, NULL, 176 [pid 20207] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20209] <... write resumed>) = -1 EFAULT (Bad address) [pid 20213] mkdir("./file0", 0777 [pid 20209] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20207] <... futex resumed>) = 0 [pid 20213] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20212] <... set_robust_list resumed>) = 0 [pid 20209] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20207] exit_group(0 [pid 20213] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20209] <... futex resumed>) = ? [pid 20207] <... exit_group resumed>) = ? [pid 20212] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20213] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20209] +++ exited with 0 +++ [pid 20213] <... futex resumed>) = 1 [pid 20211] <... futex resumed>) = 0 [pid 20213] pipe2( [pid 20211] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20213] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20211] <... futex resumed>) = 0 [pid 20207] +++ exited with 0 +++ [pid 20213] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20212] <... prctl resumed>) = 0 [pid 20211] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20207, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20213] <... futex resumed>) = 0 [pid 20212] setpgid(0, 0 [pid 20211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20213] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20212] <... setpgid resumed>) = 0 [pid 20211] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20211] <... futex resumed>) = 0 [pid 20213] dup(4 [pid 20212] <... openat resumed>) = 3 [pid 20211] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20213] <... dup resumed>) = 5 [pid 20212] write(3, "1000", 4 [pid 20210] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20213] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20212] <... write resumed>) = 4 [pid 20210] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20213] <... futex resumed>) = 1 [pid 20212] close(3 [pid 20211] <... futex resumed>) = 0 [pid 20210] <... futex resumed>) = 1 [pid 20208] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20213] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20212] <... close resumed>) = 0 [pid 20211] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20210] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20208] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20212] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20211] <... futex resumed>) = 0 [pid 20210] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20208] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20213] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20212] <... futex resumed>) = 0 [pid 20211] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20210] write(5, NULL, 176 [pid 20208] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] close(3 [pid 20212] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] <... close resumed>) = 0 [pid 20212] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20210] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20212] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20210] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20208] <... futex resumed>) = 0 [pid 20210] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20208] exit_group(0 [pid 20210] <... futex resumed>) = ? [pid 20208] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20214 attached [pid 20213] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20212] <... mprotect resumed>) = 0 [pid 20210] +++ exited with 0 +++ [pid 20208] +++ exited with 0 +++ [pid 20213] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20212] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20208, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20213] <... futex resumed>) = 1 [pid 20211] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20214 [pid 20213] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20212] <... clone resumed>, parent_tid=[20215], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20215 [pid 20211] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20212] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20211] <... futex resumed>) = 0 [pid 20214] set_robust_list(0x555556ba76e0, 24 [pid 20213] write(5, NULL, 176 [pid 20212] <... futex resumed>) = 0 [pid 20211] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20214] <... set_robust_list resumed>) = 0 [pid 20213] <... write resumed>) = -1 EFAULT (Bad address) [pid 20212] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20213] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20214] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20213] <... futex resumed>) = 1 [pid 20211] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20214] <... prctl resumed>) = 0 [pid 20213] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20211] exit_group(0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20215 attached [pid 20214] setpgid(0, 0 [pid 20213] <... futex resumed>) = ? [pid 20211] <... exit_group resumed>) = ? [pid 3607] close(3 [pid 20215] set_robust_list(0x7f61a3ef39e0, 24 [pid 20214] <... setpgid resumed>) = 0 [pid 20213] +++ exited with 0 +++ [pid 20211] +++ exited with 0 +++ [pid 3607] <... close resumed>) = 0 [pid 20215] <... set_robust_list resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20211, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20215] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20215] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20215] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20215] <... futex resumed>) = 1 [pid 20212] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20215] pipe2( [pid 20212] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20215] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20212] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20215] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20215] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20215] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20212] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20216 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20217 [pid 20212] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20215] <... futex resumed>) = 0 [pid 20214] <... openat resumed>) = 3 [pid 20212] <... futex resumed>) = 1 [pid 20215] dup(4 [pid 20212] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20214] write(3, "1000", 4./strace-static-x86_64: Process 20216 attached [pid 20215] <... dup resumed>) = 5 [pid 20216] set_robust_list(0x555556ba76e0, 24 [pid 20215] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20216] <... set_robust_list resumed>) = 0 [pid 20215] <... futex resumed>) = 1 [pid 20214] <... write resumed>) = 4 [pid 20212] <... futex resumed>) = 0 [pid 20216] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20215] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20214] close(3 [pid 20212] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20217 attached [pid 20216] <... prctl resumed>) = 0 [pid 20215] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20214] <... close resumed>) = 0 [pid 20212] <... futex resumed>) = 0 [pid 20217] set_robust_list(0x555556ba76e0, 24 [pid 20216] setpgid(0, 0 [pid 20215] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20214] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20212] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20217] <... set_robust_list resumed>) = 0 [pid 20216] <... setpgid resumed>) = 0 [pid 20217] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20217] <... prctl resumed>) = 0 [pid 20216] <... openat resumed>) = 3 [pid 20214] <... futex resumed>) = 0 [pid 20217] setpgid(0, 0 [pid 20216] write(3, "1000", 4 [pid 20214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20217] <... setpgid resumed>) = 0 [pid 20216] <... write resumed>) = 4 [pid 20217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20216] close(3 [pid 20214] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20217] <... openat resumed>) = 3 [pid 20216] <... close resumed>) = 0 [pid 20214] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20217] write(3, "1000", 4 [pid 20216] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20214] <... mprotect resumed>) = 0 [pid 20217] <... write resumed>) = 4 [pid 20216] <... futex resumed>) = 0 [pid 20217] close(3 [pid 20216] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20214] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20217] <... close resumed>) = 0 [pid 20216] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20217] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20216] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20217] <... futex resumed>) = 0 [pid 20216] <... mprotect resumed>) = 0 [pid 20214] <... clone resumed>, parent_tid=[20218], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20218 [pid 20217] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20216] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20215] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20214] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20217] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20215] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20214] <... futex resumed>) = 0 [pid 20217] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20216] <... clone resumed>, parent_tid=[20219], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20219 [pid 20215] <... futex resumed>) = 1 [pid 20214] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20212] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20218 attached [pid 20217] <... mprotect resumed>) = 0 [pid 20216] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20215] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20212] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20218] set_robust_list(0x7f61a3ef39e0, 24 [pid 20217] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20216] <... futex resumed>) = 0 [pid 20215] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20212] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20219 attached [pid 20218] <... set_robust_list resumed>) = 0 [pid 20216] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20215] write(5, NULL, 176 [pid 20212] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20219] set_robust_list(0x7f61a3ef39e0, 24 [pid 20218] mkdir("./file0", 0777 [pid 20217] <... clone resumed>, parent_tid=[20220], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20220 [pid 20215] <... write resumed>) = -1 EFAULT (Bad address) [pid 20219] <... set_robust_list resumed>) = 0 [pid 20218] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20217] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20215] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20219] mkdir("./file0", 0777 [pid 20218] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20217] <... futex resumed>) = 0 [pid 20215] <... futex resumed>) = 1 [pid 20212] <... futex resumed>) = 0 [pid 20219] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20218] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20217] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20215] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20212] exit_group(0 [pid 20219] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20218] <... futex resumed>) = 1 [pid 20215] <... futex resumed>) = ? [pid 20214] <... futex resumed>) = 0 [pid 20212] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20220 attached [pid 20219] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20218] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20215] +++ exited with 0 +++ [pid 20214] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20220] set_robust_list(0x7f61a3ef39e0, 24 [pid 20219] <... futex resumed>) = 1 [pid 20218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20216] <... futex resumed>) = 0 [pid 20214] <... futex resumed>) = 0 [pid 20212] +++ exited with 0 +++ [pid 20220] <... set_robust_list resumed>) = 0 [pid 20219] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20218] pipe2( [pid 20216] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20214] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20220] mkdir("./file0", 0777 [pid 20219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20218] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20216] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20212, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20220] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20219] pipe2( [pid 20218] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20216] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20220] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20219] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20218] <... futex resumed>) = 1 [pid 20214] <... futex resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20220] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20219] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20218] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20214] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20220] <... futex resumed>) = 1 [pid 20219] <... futex resumed>) = 1 [pid 20218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20217] <... futex resumed>) = 0 [pid 20216] <... futex resumed>) = 0 [pid 20214] <... futex resumed>) = 0 [pid 20220] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20219] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20218] dup(4 [pid 20217] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20216] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20214] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20220] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20218] <... dup resumed>) = 5 [pid 20217] <... futex resumed>) = 0 [pid 20216] <... futex resumed>) = 0 [pid 20220] pipe2( [pid 20219] dup(4 [pid 20218] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20217] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20216] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... openat resumed>) = 3 [pid 20220] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20219] <... dup resumed>) = 5 [pid 20218] <... futex resumed>) = 1 [pid 20214] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20220] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20219] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20218] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20214] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20220] <... futex resumed>) = 1 [pid 20219] <... futex resumed>) = 1 [pid 20218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20217] <... futex resumed>) = 0 [pid 20216] <... futex resumed>) = 0 [pid 20214] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20220] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20219] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20218] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20217] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20216] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20214] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... close resumed>) = 0 [pid 20220] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20217] <... futex resumed>) = 0 [pid 20216] <... futex resumed>) = 0 [pid 20220] dup(4 [pid 20217] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20216] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20220] <... dup resumed>) = 5 [pid 20220] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20217] <... futex resumed>) = 0 [pid 20220] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20217] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20220] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20217] <... futex resumed>) = 0 [pid 20220] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20217] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20219] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20221 attached [pid 20221] set_robust_list(0x555556ba76e0, 24 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20221 [pid 20221] <... set_robust_list resumed>) = 0 [pid 20220] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20220] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20217] <... futex resumed>) = 0 [pid 20220] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20217] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20220] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20217] <... futex resumed>) = 0 [pid 20220] write(5, NULL, 176 [pid 20217] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20220] <... write resumed>) = -1 EFAULT (Bad address) [pid 20220] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20217] <... futex resumed>) = 0 [pid 20220] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20217] exit_group(0 [pid 20220] <... futex resumed>) = ? [pid 20217] <... exit_group resumed>) = ? [pid 20220] +++ exited with 0 +++ [pid 20218] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20217] +++ exited with 0 +++ [pid 20221] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20218] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20217, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20218] <... futex resumed>) = 1 [pid 20214] <... futex resumed>) = 0 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20218] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20214] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... restart_syscall resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20222 ./strace-static-x86_64: Process 20222 attached [pid 20222] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20221] <... prctl resumed>) = 0 [pid 20218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20214] <... futex resumed>) = 0 [pid 20221] setpgid(0, 0 [pid 20218] write(5, NULL, 176 [pid 20214] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20221] <... setpgid resumed>) = 0 [pid 20218] <... write resumed>) = -1 EFAULT (Bad address) [pid 20221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20218] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20221] <... openat resumed>) = 3 [pid 20214] <... futex resumed>) = 0 [pid 20218] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20214] exit_group(0 [pid 20221] write(3, "1000", 4 [pid 20214] <... exit_group resumed>) = ? [pid 20218] <... futex resumed>) = ? [pid 20221] <... write resumed>) = 4 [pid 20222] setpgid(0, 0) = 0 [pid 20222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20221] close(3 [pid 20218] +++ exited with 0 +++ [pid 20214] +++ exited with 0 +++ [pid 20222] <... openat resumed>) = 3 [pid 20221] <... close resumed>) = 0 [pid 20219] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20221] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20219] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20214, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20222] write(3, "1000", 4 [pid 20221] <... futex resumed>) = 0 [pid 20219] <... futex resumed>) = 1 [pid 20216] <... futex resumed>) = 0 [pid 20222] <... write resumed>) = 4 [pid 20221] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20219] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20216] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20222] close(3 [pid 20221] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20219] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20216] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20222] <... close resumed>) = 0 [pid 20221] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20219] write(5, NULL, 176 [pid 20216] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20222] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20221] <... mprotect resumed>) = 0 [pid 20219] <... write resumed>) = -1 EFAULT (Bad address) [pid 20222] <... futex resumed>) = 0 [pid 20221] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20219] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20222] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20219] <... futex resumed>) = 1 [pid 20216] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20222] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20221] <... clone resumed>, parent_tid=[20223], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20223 [pid 20219] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20216] exit_group(0 [pid 20222] <... mprotect resumed>) = 0 [pid 20221] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20219] <... futex resumed>) = ? [pid 20216] <... exit_group resumed>) = ? [pid 3604] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20223 attached [pid 20222] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20221] <... futex resumed>) = 0 [pid 20219] +++ exited with 0 +++ [pid 20216] +++ exited with 0 +++ [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20221] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20216, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20222] <... clone resumed>, parent_tid=[20224], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20224 [pid 3604] close(3 [pid 20222] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 20222] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20222] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20224 attached [pid 20224] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20225 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20224] mkdir("./file0", 0777 [pid 3607] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20225 attached [pid 20224] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20223] set_robust_list(0x7f61a3ef39e0, 24 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 20224] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3607] <... close resumed>) = 0 [pid 20224] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20222] <... futex resumed>) = 0 [pid 20224] <... futex resumed>) = 1 [pid 20222] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20224] pipe2( [pid 20222] <... futex resumed>) = 0 [pid 20224] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20222] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20224] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20222] <... futex resumed>) = 0 [pid 20224] dup(4 [pid 20222] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20224] <... dup resumed>) = 5 [pid 20222] <... futex resumed>) = 0 [pid 20224] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20223] <... set_robust_list resumed>) = 0 [pid 20222] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20224] <... futex resumed>) = 0 [pid 20223] mkdir("./file0", 0777 [pid 20222] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20225] set_robust_list(0x555556ba76e0, 24 [pid 20224] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20223] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20222] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20225] <... set_robust_list resumed>) = 0 [pid 20223] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20222] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20225] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20223] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20222] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20226 attached [pid 20225] <... prctl resumed>) = 0 [pid 20223] <... futex resumed>) = 1 [pid 20221] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20226 [pid 20226] set_robust_list(0x555556ba76e0, 24 [pid 20225] setpgid(0, 0 [pid 20223] pipe2( [pid 20221] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20225] <... setpgid resumed>) = 0 [pid 20223] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20221] <... futex resumed>) = 0 [pid 20225] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20223] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20221] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20226] <... set_robust_list resumed>) = 0 [pid 20225] <... openat resumed>) = 3 [pid 20224] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20223] <... futex resumed>) = 0 [pid 20221] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20225] write(3, "1000", 4 [pid 20224] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20223] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20221] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20226] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20225] <... write resumed>) = 4 [pid 20224] <... futex resumed>) = 1 [pid 20223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20222] <... futex resumed>) = 0 [pid 20221] <... futex resumed>) = 0 [pid 20225] close(3 [pid 20224] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20223] dup(4 [pid 20222] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20221] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20226] <... prctl resumed>) = 0 [pid 20226] setpgid(0, 0 [pid 20225] <... close resumed>) = 0 [pid 20224] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20223] <... dup resumed>) = 5 [pid 20222] <... futex resumed>) = 0 [pid 20226] <... setpgid resumed>) = 0 [pid 20225] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20224] write(5, NULL, 176 [pid 20223] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20222] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20226] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20225] <... futex resumed>) = 0 [pid 20224] <... write resumed>) = -1 EFAULT (Bad address) [pid 20223] <... futex resumed>) = 1 [pid 20221] <... futex resumed>) = 0 [pid 20226] <... openat resumed>) = 3 [pid 20225] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20224] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20223] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20221] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20226] write(3, "1000", 4 [pid 20225] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20224] <... futex resumed>) = 1 [pid 20223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20222] <... futex resumed>) = 0 [pid 20221] <... futex resumed>) = 0 [pid 20226] <... write resumed>) = 4 [pid 20225] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20224] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20223] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20222] exit_group(0 [pid 20221] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20226] close(3 [pid 20225] <... mprotect resumed>) = 0 [pid 20224] <... futex resumed>) = ? [pid 20222] <... exit_group resumed>) = ? [pid 20226] <... close resumed>) = 0 [pid 20225] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20226] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20226] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20224] +++ exited with 0 +++ [pid 20226] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20222] +++ exited with 0 +++ [pid 20226] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20225] <... clone resumed>, parent_tid=[20227], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20227 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20222, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 20227 attached [pid 20226] <... mprotect resumed>) = 0 [pid 20225] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20223] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20227] set_robust_list(0x7f61a3ef39e0, 24 [pid 20226] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20225] <... futex resumed>) = 0 [pid 20223] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20228 attached [pid 20227] <... set_robust_list resumed>) = 0 [pid 20225] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20223] <... futex resumed>) = 1 [pid 20221] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20228] set_robust_list(0x7f61a3ef39e0, 24 [pid 20227] mkdir("./file0", 0777 [pid 20226] <... clone resumed>, parent_tid=[20228], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20228 [pid 20223] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20221] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20228] <... set_robust_list resumed>) = 0 [pid 20227] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20226] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20223] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20221] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20228] mkdir("./file0", 0777 [pid 20227] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20226] <... futex resumed>) = 0 [pid 20223] write(5, NULL, 176 [pid 20221] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20228] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20227] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20226] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20223] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20228] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20227] <... futex resumed>) = 1 [pid 20225] <... futex resumed>) = 0 [pid 20223] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 20228] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20227] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20225] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20223] <... futex resumed>) = 1 [pid 20221] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20228] <... futex resumed>) = 1 [pid 20227] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20226] <... futex resumed>) = 0 [pid 20225] <... futex resumed>) = 0 [pid 20223] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20221] exit_group(0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20228] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20227] pipe2( [pid 20226] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20225] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20221] <... exit_group resumed>) = ? [pid 20228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20227] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20226] <... futex resumed>) = 0 [pid 20223] <... futex resumed>) = ? [pid 20228] pipe2( [pid 20227] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20226] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20228] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20227] <... futex resumed>) = 1 [pid 20225] <... futex resumed>) = 0 [pid 20228] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20227] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20225] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20228] <... futex resumed>) = 0 [pid 20227] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20225] <... futex resumed>) = 0 [pid 20223] +++ exited with 0 +++ [pid 20226] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20221] +++ exited with 0 +++ [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20229 [pid 20228] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20227] dup(4 [pid 20226] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20225] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20229 attached [pid 20228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20227] <... dup resumed>) = 5 [pid 20226] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20221, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20229] set_robust_list(0x555556ba76e0, 24 [pid 20228] dup(4 [pid 20227] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20226] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20229] <... set_robust_list resumed>) = 0 [pid 20228] <... dup resumed>) = 5 [pid 20227] <... futex resumed>) = 1 [pid 20225] <... futex resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20229] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20228] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20227] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20225] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20229] <... prctl resumed>) = 0 [pid 20228] <... futex resumed>) = 1 [pid 20227] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20226] <... futex resumed>) = 0 [pid 20225] <... futex resumed>) = 0 [pid 20229] setpgid(0, 0 [pid 20228] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20227] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20226] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20225] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20229] <... setpgid resumed>) = 0 [pid 20228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20228] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20229] <... openat resumed>) = 3 [pid 20226] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20229] write(3, "1000", 4) = 4 [pid 20229] close(3) = 0 [pid 20229] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20229] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20229] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20229] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20230], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20230 [pid 20229] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20229] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20230 attached [pid 20230] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20230] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20230] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20230] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20229] <... futex resumed>) = 0 [pid 20229] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20229] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20230] <... futex resumed>) = 1 [pid 20230] pipe2([3, 4], 0) = 0 [pid 20230] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20229] <... futex resumed>) = 0 [pid 20229] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20229] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20230] <... futex resumed>) = 1 [pid 20230] dup(4) = 5 [pid 20230] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20229] <... futex resumed>) = 0 [pid 20229] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20229] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20230] <... futex resumed>) = 1 [pid 20230] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20226] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20231 [pid 20227] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20227] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20225] <... futex resumed>) = 0 [pid 20227] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20225] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20228] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20228] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20227] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20225] <... futex resumed>) = 0 [pid 20228] <... futex resumed>) = 1 [pid 20227] write(5, NULL, 176 [pid 20226] <... futex resumed>) = 0 [pid 20225] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20228] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20227] <... write resumed>) = -1 EFAULT (Bad address) [pid 20226] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20227] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20226] <... futex resumed>) = 0 [pid 20228] write(5, NULL, 176 [pid 20227] <... futex resumed>) = 0 [pid 20226] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20228] <... write resumed>) = -1 EFAULT (Bad address) [pid 20227] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20228] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20226] <... futex resumed>) = 0 [pid 20228] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20226] exit_group(0 [pid 20228] <... futex resumed>) = ? [pid 20226] <... exit_group resumed>) = ? [pid 20228] +++ exited with 0 +++ [pid 20226] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20226, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 20225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20225] exit_group(0./strace-static-x86_64: Process 20231 attached [pid 20227] <... futex resumed>) = ? [pid 20225] <... exit_group resumed>) = ? [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20227] +++ exited with 0 +++ [pid 3607] <... openat resumed>) = 3 [pid 20225] +++ exited with 0 +++ [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20231] set_robust_list(0x555556ba76e0, 24 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20231] <... set_robust_list resumed>) = 0 [pid 3607] close(3 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20225, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] <... close resumed>) = 0 [pid 20231] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20231] <... prctl resumed>) = 0 [pid 20230] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... restart_syscall resumed>) = 0 [pid 20231] setpgid(0, 0 [pid 20230] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20231] <... setpgid resumed>) = 0 [pid 20230] <... futex resumed>) = 1 [pid 20229] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20232 [pid 20231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20230] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20229] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20231] <... openat resumed>) = 3 [pid 20230] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20229] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20231] write(3, "1000", 4 [pid 20230] write(5, NULL, 176 [pid 20229] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20232 attached [pid 20231] <... write resumed>) = 4 [pid 20230] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20232] set_robust_list(0x555556ba76e0, 24 [pid 20231] close(3 [pid 20230] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20232] <... set_robust_list resumed>) = 0 [pid 20231] <... close resumed>) = 0 [pid 20230] <... futex resumed>) = 1 [pid 20229] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20232] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20231] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20230] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20229] exit_group(0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20232] <... prctl resumed>) = 0 [pid 20231] <... futex resumed>) = 0 [pid 20230] <... futex resumed>) = ? [pid 20229] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20233 attached [pid 20232] setpgid(0, 0 [pid 20231] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20230] +++ exited with 0 +++ [pid 20229] +++ exited with 0 +++ [pid 20233] set_robust_list(0x555556ba76e0, 24 [pid 20232] <... setpgid resumed>) = 0 [pid 20231] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20233 [pid 20232] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20231] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20229, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20233] <... set_robust_list resumed>) = 0 [pid 20232] <... openat resumed>) = 3 [pid 20231] <... mprotect resumed>) = 0 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20232] write(3, "1000", 4 [pid 20231] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20232] <... write resumed>) = 4 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20232] close(3 [pid 20231] <... clone resumed>, parent_tid=[20234], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20234 [pid 20232] <... close resumed>) = 0 [pid 20231] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20232] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20231] <... futex resumed>) = 0 [pid 20233] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20232] <... futex resumed>) = 0 [pid 20231] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20233] <... prctl resumed>) = 0 [pid 20232] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20233] setpgid(0, 0 [pid 20232] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20234 attached [pid 20233] <... setpgid resumed>) = 0 [pid 20232] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20232] <... mprotect resumed>) = 0 [pid 20233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20232] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] close(3 [pid 20233] <... openat resumed>) = 3 [pid 20232] <... clone resumed>, parent_tid=[20235], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20235 [pid 3601] <... close resumed>) = 0 [pid 20234] set_robust_list(0x7f61a3ef39e0, 24 [pid 20232] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20233] write(3, "1000", 4 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20234] <... set_robust_list resumed>) = 0 [pid 20233] <... write resumed>) = 4 [pid 20232] <... futex resumed>) = 0 [pid 20232] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20233] close(3 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20236 [pid 20234] mkdir("./file0", 0777 [pid 20233] <... close resumed>) = 0 [pid 20234] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20233] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20234] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20234] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20233] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20234] <... futex resumed>) = 1 [pid 20233] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20231] <... futex resumed>) = 0 [pid 20234] pipe2( [pid 20233] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20231] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20236 attached ./strace-static-x86_64: Process 20235 attached [pid 20234] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20233] <... mprotect resumed>) = 0 [pid 20231] <... futex resumed>) = 0 [pid 20236] set_robust_list(0x555556ba76e0, 24 [pid 20235] set_robust_list(0x7f61a3ef39e0, 24 [pid 20234] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20233] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20231] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20236] <... set_robust_list resumed>) = 0 [pid 20235] <... set_robust_list resumed>) = 0 [pid 20234] <... futex resumed>) = 0 [pid 20231] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20236] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20235] mkdir("./file0", 0777 [pid 20234] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20233] <... clone resumed>, parent_tid=[20237], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20237 [pid 20231] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20237 attached [pid 20236] <... prctl resumed>) = 0 [pid 20235] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20233] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20231] <... futex resumed>) = 0 [pid 20236] setpgid(0, 0 [pid 20235] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20234] dup(4 [pid 20233] <... futex resumed>) = 0 [pid 20231] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20236] <... setpgid resumed>) = 0 [pid 20235] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20234] <... dup resumed>) = 5 [pid 20233] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20237] set_robust_list(0x7f61a3ef39e0, 24 [pid 20236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20235] <... futex resumed>) = 1 [pid 20234] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20232] <... futex resumed>) = 0 [pid 20237] <... set_robust_list resumed>) = 0 [pid 20236] <... openat resumed>) = 3 [pid 20235] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20234] <... futex resumed>) = 1 [pid 20232] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20231] <... futex resumed>) = 0 [pid 20237] mkdir("./file0", 0777 [pid 20236] write(3, "1000", 4 [pid 20235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20234] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20232] <... futex resumed>) = 0 [pid 20231] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20237] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20236] <... write resumed>) = 4 [pid 20235] pipe2( [pid 20234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20232] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20231] <... futex resumed>) = 0 [pid 20237] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20236] close(3 [pid 20235] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20234] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20231] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20237] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20236] <... close resumed>) = 0 [pid 20235] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20236] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20235] <... futex resumed>) = 1 [pid 20232] <... futex resumed>) = 0 [pid 20236] <... futex resumed>) = 0 [pid 20235] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20232] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20236] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20232] <... futex resumed>) = 0 [pid 20236] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20235] dup(4 [pid 20232] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20236] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20235] <... dup resumed>) = 5 [pid 20236] <... mprotect resumed>) = 0 [pid 20235] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20237] <... futex resumed>) = 1 [pid 20236] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20235] <... futex resumed>) = 1 [pid 20233] <... futex resumed>) = 0 [pid 20232] <... futex resumed>) = 0 [pid 20237] pipe2( [pid 20235] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20233] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20232] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20237] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20236] <... clone resumed>, parent_tid=[20238], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20238 [pid 20235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20233] <... futex resumed>) = 0 [pid 20232] <... futex resumed>) = 0 [pid 20236] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20235] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20232] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20236] <... futex resumed>) = 0 [pid 20236] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20238 attached [pid 20238] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20238] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20238] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20238] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20236] <... futex resumed>) = 0 [pid 20236] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20236] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20238] <... futex resumed>) = 1 [pid 20238] pipe2([3, 4], 0) = 0 [pid 20238] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20236] <... futex resumed>) = 0 [pid 20238] dup(4 [pid 20236] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20238] <... dup resumed>) = 5 [pid 20236] <... futex resumed>) = 0 [pid 20238] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20236] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20238] <... futex resumed>) = 0 [pid 20236] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20238] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20236] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20237] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20236] <... futex resumed>) = 0 [pid 20233] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20237] <... futex resumed>) = 0 [pid 20236] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20233] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20237] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20233] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20237] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20233] <... futex resumed>) = 0 [pid 20237] dup(4 [pid 20234] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20233] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20237] <... dup resumed>) = 5 [pid 20234] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20237] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20234] <... futex resumed>) = 1 [pid 20231] <... futex resumed>) = 0 [pid 20237] <... futex resumed>) = 1 [pid 20234] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20233] <... futex resumed>) = 0 [pid 20231] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20237] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20233] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20231] <... futex resumed>) = 0 [pid 20237] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20234] write(5, NULL, 176 [pid 20233] <... futex resumed>) = 0 [pid 20231] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20237] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20234] <... write resumed>) = -1 EFAULT (Bad address) [pid 20233] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20234] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20231] <... futex resumed>) = 0 [pid 20234] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20231] exit_group(0 [pid 20234] <... futex resumed>) = ? [pid 20231] <... exit_group resumed>) = ? [pid 20234] +++ exited with 0 +++ [pid 20231] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20231, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- [pid 3606] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 20235] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20238] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20235] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20238] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20235] <... futex resumed>) = 1 [pid 20232] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20238] <... futex resumed>) = 1 [pid 20236] <... futex resumed>) = 0 [pid 20235] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20232] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20238] write(5, NULL, 176 [pid 20236] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20232] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20237] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20238] <... write resumed>) = -1 EFAULT (Bad address) [pid 20236] <... futex resumed>) = 0 [pid 20235] write(5, NULL, 176 [pid 20237] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20232] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20238] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20237] <... futex resumed>) = 1 [pid 20236] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20235] <... write resumed>) = -1 EFAULT (Bad address) [pid 20233] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20239 [pid 20238] <... futex resumed>) = 0 [pid 20237] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20236] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20235] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20233] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20238] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20237] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20236] exit_group(0 [pid 20235] <... futex resumed>) = 1 [pid 20233] <... futex resumed>) = 0 [pid 20232] <... futex resumed>) = 0 [pid 20238] <... futex resumed>) = ? [pid 20237] write(5, NULL, 176 [pid 20236] <... exit_group resumed>) = ? [pid 20235] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20233] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20232] exit_group(0./strace-static-x86_64: Process 20239 attached [pid 20238] +++ exited with 0 +++ [pid 20237] <... write resumed>) = -1 EFAULT (Bad address) [pid 20236] +++ exited with 0 +++ [pid 20235] <... futex resumed>) = ? [pid 20232] <... exit_group resumed>) = ? [pid 20237] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20235] +++ exited with 0 +++ [pid 20232] +++ exited with 0 +++ [pid 20239] set_robust_list(0x555556ba76e0, 24 [pid 20237] <... futex resumed>) = 1 [pid 20233] <... futex resumed>) = 0 [pid 20239] <... set_robust_list resumed>) = 0 [pid 20237] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20233] exit_group(0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20232, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20236, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20239] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20237] <... futex resumed>) = ? [pid 20233] <... exit_group resumed>) = ? [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20237] +++ exited with 0 +++ [pid 3607] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 20233] +++ exited with 0 +++ [pid 3607] <... close resumed>) = 0 [pid 20239] <... prctl resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20233, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3601] <... restart_syscall resumed>) = 0 [pid 20239] setpgid(0, 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20240 [pid 20239] <... setpgid resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3601] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20240 attached [pid 20239] <... openat resumed>) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20240] set_robust_list(0x555556ba76e0, 24 [pid 20239] write(3, "1000", 4 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20240] <... set_robust_list resumed>) = 0 [pid 20239] <... write resumed>) = 4 [pid 3601] close(3 [pid 20240] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20239] close(3 [pid 3601] <... close resumed>) = 0 [pid 20240] <... prctl resumed>) = 0 [pid 20239] <... close resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20240] setpgid(0, 0 [pid 20239] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20240] <... setpgid resumed>) = 0 [pid 20239] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20241 [pid 20240] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20239] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20241 attached [pid 20240] <... openat resumed>) = 3 [pid 20239] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20241] set_robust_list(0x555556ba76e0, 24 [pid 20240] write(3, "1000", 4 [pid 20239] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] close(3 [pid 20241] <... set_robust_list resumed>) = 0 [pid 20240] <... write resumed>) = 4 [pid 20239] <... mprotect resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20240] close(3 [pid 20239] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20240] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20241] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20240] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20239] <... clone resumed>, parent_tid=[20242], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20242 [pid 20241] <... prctl resumed>) = 0 [pid 20240] <... futex resumed>) = 0 [pid 20239] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20241] setpgid(0, 0 [pid 20240] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20239] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20243 [pid 20241] <... setpgid resumed>) = 0 [pid 20240] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20239] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20243 attached ./strace-static-x86_64: Process 20242 attached [pid 20241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20240] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20243] set_robust_list(0x555556ba76e0, 24 [pid 20242] set_robust_list(0x7f61a3ef39e0, 24 [pid 20241] <... openat resumed>) = 3 [pid 20240] <... mprotect resumed>) = 0 [pid 20243] <... set_robust_list resumed>) = 0 [pid 20242] <... set_robust_list resumed>) = 0 [pid 20241] write(3, "1000", 4 [pid 20240] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20243] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20242] mkdir("./file0", 0777 [pid 20241] <... write resumed>) = 4 [pid 20243] <... prctl resumed>) = 0 [pid 20241] close(3 [pid 20240] <... clone resumed>, parent_tid=[20244], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20244 [pid 20242] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20243] setpgid(0, 0 [pid 20241] <... close resumed>) = 0 [pid 20240] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20243] <... setpgid resumed>) = 0 [pid 20242] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20241] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20240] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20244 attached [pid 20243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20242] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20241] <... futex resumed>) = 0 [pid 20244] set_robust_list(0x7f61a3ef39e0, 24 [pid 20243] <... openat resumed>) = 3 [pid 20242] <... futex resumed>) = 1 [pid 20241] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20239] <... futex resumed>) = 0 [pid 20244] <... set_robust_list resumed>) = 0 [pid 20243] write(3, "1000", 4 [pid 20242] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20241] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20239] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20244] mkdir("./file0", 0777 [pid 20243] <... write resumed>) = 4 [pid 20242] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20241] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20239] <... futex resumed>) = 0 [pid 20244] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20243] close(3 [pid 20242] pipe2( [pid 20241] <... mprotect resumed>) = 0 [pid 20239] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20244] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20243] <... close resumed>) = 0 [pid 20242] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20241] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20244] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20243] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20242] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20244] <... futex resumed>) = 1 [pid 20243] <... futex resumed>) = 0 [pid 20242] <... futex resumed>) = 1 [pid 20241] <... clone resumed>, parent_tid=[20245], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20245 [pid 20240] <... futex resumed>) = 0 [pid 20239] <... futex resumed>) = 0 [pid 20244] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20243] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20242] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20241] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20240] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20239] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20244] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20243] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20242] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20241] <... futex resumed>) = 0 [pid 20240] <... futex resumed>) = 0 [pid 20239] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20245 attached [pid 20244] pipe2( [pid 20243] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20242] dup(4 [pid 20241] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20240] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20239] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20244] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20243] <... mprotect resumed>) = 0 [pid 20242] <... dup resumed>) = 5 [pid 20244] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20243] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20242] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20244] <... futex resumed>) = 1 [pid 20242] <... futex resumed>) = 1 [pid 20240] <... futex resumed>) = 0 [pid 20239] <... futex resumed>) = 0 [pid 20245] set_robust_list(0x7f61a3ef39e0, 24 [pid 20244] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20243] <... clone resumed>, parent_tid=[20246], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20246 [pid 20242] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20240] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20239] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20245] <... set_robust_list resumed>) = 0 [pid 20244] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20243] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20242] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20240] <... futex resumed>) = 0 [pid 20239] <... futex resumed>) = 0 [pid 20245] mkdir("./file0", 0777 [pid 20244] dup(4 [pid 20243] <... futex resumed>) = 0 [pid 20242] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20240] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20239] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20246 attached [pid 20245] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20244] <... dup resumed>) = 5 [pid 20243] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20246] set_robust_list(0x7f61a3ef39e0, 24 [pid 20244] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20246] <... set_robust_list resumed>) = 0 [pid 20244] <... futex resumed>) = 1 [pid 20240] <... futex resumed>) = 0 [pid 20246] mkdir("./file0", 0777 [pid 20244] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20240] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20246] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20244] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20240] <... futex resumed>) = 0 [pid 20246] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20244] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20240] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20246] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20246] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20243] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20245] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20243] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20245] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20243] <... futex resumed>) = 1 [pid 20242] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20245] <... futex resumed>) = 1 [pid 20243] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20242] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20241] <... futex resumed>) = 0 [pid 20246] <... futex resumed>) = 0 [pid 20245] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20242] <... futex resumed>) = 1 [pid 20241] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20239] <... futex resumed>) = 0 [pid 20245] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20246] pipe2( [pid 20242] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20241] <... futex resumed>) = 0 [pid 20239] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20245] pipe2( [pid 20242] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20241] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20245] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20242] write(5, NULL, 176 [pid 20245] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20242] <... write resumed>) = -1 EFAULT (Bad address) [pid 20245] <... futex resumed>) = 1 [pid 20242] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20241] <... futex resumed>) = 0 [pid 20245] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20242] <... futex resumed>) = 0 [pid 20241] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20245] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20242] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20241] <... futex resumed>) = 0 [pid 20245] dup(4 [pid 20241] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20245] <... dup resumed>) = 5 [pid 20245] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20241] <... futex resumed>) = 0 [pid 20245] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20241] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20245] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20241] <... futex resumed>) = 0 [pid 20245] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20241] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20246] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20242] <... futex resumed>) = 0 [pid 20239] <... futex resumed>) = 1 [pid 20242] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20239] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20246] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20239] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20239] exit_group(0 [pid 20242] <... futex resumed>) = ? [pid 20239] <... exit_group resumed>) = ? [pid 20246] <... futex resumed>) = 1 [pid 20244] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20243] <... futex resumed>) = 0 [pid 20242] +++ exited with 0 +++ [pid 20239] +++ exited with 0 +++ [pid 20246] dup(4 [pid 20243] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20246] <... dup resumed>) = 5 [pid 20244] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20243] <... futex resumed>) = 0 [pid 20246] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20243] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20239, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20246] <... futex resumed>) = 0 [pid 20243] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20243] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20246] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20245] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20243] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20244] <... futex resumed>) = 1 [pid 20243] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20240] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20245] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20240] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20245] <... futex resumed>) = 1 [pid 20244] write(5, NULL, 176 [pid 20241] <... futex resumed>) = 0 [pid 20240] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20246] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20245] write(5, NULL, 176 [pid 20244] <... write resumed>) = -1 EFAULT (Bad address) [pid 20241] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20240] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... close resumed>) = 0 [pid 20246] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20245] <... write resumed>) = -1 EFAULT (Bad address) [pid 20244] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20241] <... futex resumed>) = 0 [pid 20240] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20246] <... futex resumed>) = 1 [pid 20245] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20244] <... futex resumed>) = 0 [pid 20243] <... futex resumed>) = 0 [pid 20241] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20240] exit_group(0 [pid 20246] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20245] <... futex resumed>) = 0 [pid 20243] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20241] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20240] <... exit_group resumed>) = ? [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20247 [pid 20246] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20245] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20244] +++ exited with 0 +++ [pid 20243] <... futex resumed>) = 0 [pid 20241] exit_group(0 [pid 20246] write(5, NULL, 176 [pid 20245] <... futex resumed>) = ? [pid 20243] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20241] <... exit_group resumed>) = ? [pid 20246] <... write resumed>) = -1 EFAULT (Bad address) [pid 20245] +++ exited with 0 +++ [pid 20241] +++ exited with 0 +++ [pid 20240] +++ exited with 0 +++ [pid 20246] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20240, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20241, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20246] <... futex resumed>) = 1 [pid 20243] <... futex resumed>) = 0 [pid 20246] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20243] exit_group(0 [pid 20246] <... futex resumed>) = ? [pid 20243] <... exit_group resumed>) = ? [pid 20246] +++ exited with 0 +++ [pid 20243] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20243, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 20247 attached ) = 3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20247] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20247] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3601] <... openat resumed>) = 3 [pid 20247] <... prctl resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20247] setpgid(0, 0 [pid 3607] close(3 [pid 3604] <... openat resumed>) = 3 [pid 20247] <... setpgid resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20247] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20247] <... openat resumed>) = 3 [pid 3604] close(3 [pid 20247] write(3, "1000", 4 [pid 3604] <... close resumed>) = 0 [pid 20247] <... write resumed>) = 4 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20247] close(3) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20248 [pid 20247] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20247] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20247] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20247] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20249], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20249 [pid 20247] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20247] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] close(3 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20250 [pid 3601] <... close resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20248 attached [pid 20248] set_robust_list(0x555556ba76e0, 24 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20251 ./strace-static-x86_64: Process 20250 attached [pid 20250] set_robust_list(0x555556ba76e0, 24 [pid 20248] <... set_robust_list resumed>) = 0 [pid 20250] <... set_robust_list resumed>) = 0 [pid 20248] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20250] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20248] <... prctl resumed>) = 0 [pid 20250] <... prctl resumed>) = 0 [pid 20248] setpgid(0, 0 [pid 20250] setpgid(0, 0 [pid 20248] <... setpgid resumed>) = 0 [pid 20250] <... setpgid resumed>) = 0 [pid 20248] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 20251 attached [pid 20250] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20248] <... openat resumed>) = 3 [pid 20251] set_robust_list(0x555556ba76e0, 24 [pid 20250] <... openat resumed>) = 3 [pid 20248] write(3, "1000", 4./strace-static-x86_64: Process 20249 attached [pid 20251] <... set_robust_list resumed>) = 0 [pid 20250] write(3, "1000", 4 [pid 20248] <... write resumed>) = 4 [pid 20251] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20250] <... write resumed>) = 4 [pid 20249] set_robust_list(0x7f61a3ef39e0, 24 [pid 20248] close(3 [pid 20251] <... prctl resumed>) = 0 [pid 20250] close(3 [pid 20249] <... set_robust_list resumed>) = 0 [pid 20248] <... close resumed>) = 0 [pid 20250] <... close resumed>) = 0 [pid 20248] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20251] setpgid(0, 0 [pid 20250] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20249] mkdir("./file0", 0777 [pid 20248] <... futex resumed>) = 0 [pid 20251] <... setpgid resumed>) = 0 [pid 20250] <... futex resumed>) = 0 [pid 20248] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20250] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20249] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20248] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20250] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20249] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20248] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20250] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20248] <... mprotect resumed>) = 0 [pid 20251] <... openat resumed>) = 3 [pid 20250] <... mprotect resumed>) = 0 [pid 20249] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20248] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20251] write(3, "1000", 4 [pid 20250] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20249] <... futex resumed>) = 1 [pid 20247] <... futex resumed>) = 0 [pid 20251] <... write resumed>) = 4 [pid 20248] <... clone resumed>, parent_tid=[20252], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20252 [pid 20249] pipe2( [pid 20247] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20251] close(3 [pid 20250] <... clone resumed>, parent_tid=[20253], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20253 [pid 20249] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20248] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20247] <... futex resumed>) = 0 [pid 20251] <... close resumed>) = 0 [pid 20250] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20249] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20248] <... futex resumed>) = 0 [pid 20247] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20251] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20250] <... futex resumed>) = 0 [pid 20249] <... futex resumed>) = 0 [pid 20248] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20247] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20251] <... futex resumed>) = 0 [pid 20250] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20249] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20247] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20253 attached [pid 20251] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20249] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20247] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20252 attached [pid 20253] set_robust_list(0x7f61a3ef39e0, 24 [pid 20251] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20249] dup(4 [pid 20247] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20253] <... set_robust_list resumed>) = 0 [pid 20252] set_robust_list(0x7f61a3ef39e0, 24 [pid 20251] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20249] <... dup resumed>) = 5 [pid 20253] mkdir("./file0", 0777 [pid 20252] <... set_robust_list resumed>) = 0 [pid 20251] <... mprotect resumed>) = 0 [pid 20249] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20253] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20252] mkdir("./file0", 0777 [pid 20251] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20249] <... futex resumed>) = 1 [pid 20247] <... futex resumed>) = 0 [pid 20253] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20252] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20249] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20247] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20253] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20252] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20251] <... clone resumed>, parent_tid=[20254], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20254 [pid 20247] <... futex resumed>) = 0 [pid 20253] <... futex resumed>) = 1 [pid 20252] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20250] <... futex resumed>) = 0 [pid 20247] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20251] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20253] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20252] <... futex resumed>) = 1 [pid 20250] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20248] <... futex resumed>) = 0 [pid 20251] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20254 attached [pid 20253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20252] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20250] <... futex resumed>) = 0 [pid 20251] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20248] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20254] set_robust_list(0x7f61a3ef39e0, 24 [pid 20253] pipe2( [pid 20252] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20250] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20248] <... futex resumed>) = 0 [pid 20254] <... set_robust_list resumed>) = 0 [pid 20253] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20252] pipe2( [pid 20248] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20254] mkdir("./file0", 0777 [pid 20253] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20252] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20254] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20253] <... futex resumed>) = 1 [pid 20252] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20250] <... futex resumed>) = 0 [pid 20254] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20253] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20252] <... futex resumed>) = 1 [pid 20250] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20248] <... futex resumed>) = 0 [pid 20254] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20252] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20250] <... futex resumed>) = 0 [pid 20248] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20254] <... futex resumed>) = 1 [pid 20253] dup(4 [pid 20252] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20250] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20248] <... futex resumed>) = 0 [pid 20254] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20253] <... dup resumed>) = 5 [pid 20252] dup(4 [pid 20248] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20253] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20252] <... dup resumed>) = 5 [pid 20253] <... futex resumed>) = 1 [pid 20252] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20250] <... futex resumed>) = 0 [pid 20253] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20252] <... futex resumed>) = 1 [pid 20250] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20248] <... futex resumed>) = 0 [pid 20253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20252] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20250] <... futex resumed>) = 0 [pid 20248] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20253] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20252] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20250] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20248] <... futex resumed>) = 0 [pid 20252] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20248] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20251] <... futex resumed>) = 0 [pid 20251] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20254] <... futex resumed>) = 0 [pid 20251] <... futex resumed>) = 1 [pid 20254] pipe2( [pid 20251] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20254] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20254] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20251] <... futex resumed>) = 0 [pid 20254] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20251] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20254] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20254] dup(4 [pid 20251] <... futex resumed>) = 0 [pid 20254] <... dup resumed>) = 5 [pid 20254] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20254] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20251] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 20251] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20254] <... futex resumed>) = 0 [pid 20251] <... futex resumed>) = 1 [pid 20254] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20251] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20249] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20249] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20247] <... futex resumed>) = 0 [pid 20249] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20247] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20249] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20247] <... futex resumed>) = 0 [pid 20249] write(5, NULL, 176 [pid 20247] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20249] <... write resumed>) = -1 EFAULT (Bad address) [pid 20249] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20247] <... futex resumed>) = 0 [pid 20249] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20247] exit_group(0 [pid 20249] <... futex resumed>) = ? [pid 20247] <... exit_group resumed>) = ? [pid 20249] +++ exited with 0 +++ [pid 20247] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20247, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20254] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20252] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20252] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20255 [pid 20252] <... futex resumed>) = 1 [pid 20248] <... futex resumed>) = 0 [pid 20253] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20254] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20252] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20253] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20248] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20254] <... futex resumed>) = 1 [pid 20253] <... futex resumed>) = 1 [pid 20252] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20251] <... futex resumed>) = 0 [pid 20250] <... futex resumed>) = 0 [pid 20248] <... futex resumed>) = 0 [pid 20254] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20253] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20252] write(5, NULL, 176 [pid 20251] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20250] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20248] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20254] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20252] <... write resumed>) = -1 EFAULT (Bad address) [pid 20251] <... futex resumed>) = 0 [pid 20250] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20255 attached [pid 20254] write(5, NULL, 176 [pid 20253] write(5, NULL, 176 [pid 20252] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20251] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20250] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20255] set_robust_list(0x555556ba76e0, 24 [pid 20254] <... write resumed>) = -1 EFAULT (Bad address) [pid 20253] <... write resumed>) = -1 EFAULT (Bad address) [pid 20252] <... futex resumed>) = 1 [pid 20248] <... futex resumed>) = 0 [pid 20255] <... set_robust_list resumed>) = 0 [pid 20254] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20253] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20252] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20248] exit_group(0 [pid 20255] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20254] <... futex resumed>) = 1 [pid 20253] <... futex resumed>) = 1 [pid 20252] <... futex resumed>) = ? [pid 20251] <... futex resumed>) = 0 [pid 20250] <... futex resumed>) = 0 [pid 20248] <... exit_group resumed>) = ? [pid 20255] <... prctl resumed>) = 0 [pid 20254] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20253] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20252] +++ exited with 0 +++ [pid 20251] exit_group(0 [pid 20250] exit_group(0 [pid 20248] +++ exited with 0 +++ [pid 20255] setpgid(0, 0 [pid 20254] <... futex resumed>) = ? [pid 20253] <... futex resumed>) = ? [pid 20251] <... exit_group resumed>) = ? [pid 20250] <... exit_group resumed>) = ? [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20248, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20255] <... setpgid resumed>) = 0 [pid 20254] +++ exited with 0 +++ [pid 20253] +++ exited with 0 +++ [pid 20251] +++ exited with 0 +++ [pid 20250] +++ exited with 0 +++ [pid 20255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20251, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20255] <... openat resumed>) = 3 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20250, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20255] write(3, "1000", 4 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] <... openat resumed>) = 3 [pid 20255] <... write resumed>) = 4 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3607] <... openat resumed>) = 3 [pid 20255] close(3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20255] <... close resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] close(3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20255] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... close resumed>) = 0 [pid 20255] <... futex resumed>) = 0 [pid 3607] close(3 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... openat resumed>) = 3 [pid 20255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] <... close resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20255] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20256 [pid 20255] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20255] <... mprotect resumed>) = 0 [pid 20255] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20257 [pid 3601] close(3 [pid 20255] <... clone resumed>, parent_tid=[20258], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20258 [pid 20255] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20255] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20256 attached [pid 20256] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20256] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 20258 attached [pid 20258] set_robust_list(0x7f61a3ef39e0, 24 [pid 3601] <... close resumed>) = 0 [pid 20258] <... set_robust_list resumed>) = 0 [pid 20258] mkdir("./file0", 0777 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20256] <... prctl resumed>) = 0 [pid 20258] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20259 [pid 20258] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20256] setpgid(0, 0 [pid 20258] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20256] <... setpgid resumed>) = 0 [pid 20258] <... futex resumed>) = 1 [pid 20256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20255] <... futex resumed>) = 0 [pid 20258] pipe2( [pid 20256] <... openat resumed>) = 3 [pid 20255] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20258] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20256] write(3, "1000", 4 [pid 20255] <... futex resumed>) = 0 [pid 20258] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20256] <... write resumed>) = 4 [pid 20255] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20258] <... futex resumed>) = 0 [pid 20256] close(3 [pid 20255] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20258] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20256] <... close resumed>) = 0 [pid 20255] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20258] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20256] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20255] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20259 attached [pid 20258] dup(4 [pid 20256] <... futex resumed>) = 0 [pid 20255] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20258] <... dup resumed>) = 5 [pid 20256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20259] set_robust_list(0x555556ba76e0, 24 [pid 20258] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20256] <... mmap resumed>) = 0x7f61a3ed3000 ./strace-static-x86_64: Process 20257 attached [pid 20259] <... set_robust_list resumed>) = 0 [pid 20258] <... futex resumed>) = 1 [pid 20256] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20255] <... futex resumed>) = 0 [pid 20259] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20258] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20256] <... mprotect resumed>) = 0 [pid 20255] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20259] <... prctl resumed>) = 0 [pid 20258] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20257] set_robust_list(0x555556ba76e0, 24 [pid 20256] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20255] <... futex resumed>) = 0 [pid 20259] setpgid(0, 0 [pid 20258] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20257] <... set_robust_list resumed>) = 0 [pid 20255] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20260 attached [pid 20259] <... setpgid resumed>) = 0 [pid 20256] <... clone resumed>, parent_tid=[20260], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20260 [pid 20256] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20256] <... futex resumed>) = 0 [pid 20257] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20256] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20259] <... openat resumed>) = 3 [pid 20257] <... prctl resumed>) = 0 [pid 20259] write(3, "1000", 4) = 4 [pid 20257] setpgid(0, 0 [pid 20259] close(3 [pid 20257] <... setpgid resumed>) = 0 [pid 20260] set_robust_list(0x7f61a3ef39e0, 24 [pid 20259] <... close resumed>) = 0 [pid 20258] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20257] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20260] <... set_robust_list resumed>) = 0 [pid 20259] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20258] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20257] <... openat resumed>) = 3 [pid 20260] mkdir("./file0", 0777 [pid 20259] <... futex resumed>) = 0 [pid 20258] <... futex resumed>) = 1 [pid 20257] write(3, "1000", 4 [pid 20255] <... futex resumed>) = 0 [pid 20260] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20258] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20257] <... write resumed>) = 4 [pid 20255] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20260] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20259] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20257] close(3 [pid 20260] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20259] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20258] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20257] <... close resumed>) = 0 [pid 20255] <... futex resumed>) = 0 [pid 20260] <... futex resumed>) = 1 [pid 20259] <... mprotect resumed>) = 0 [pid 20258] write(5, NULL, 176 [pid 20257] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20256] <... futex resumed>) = 0 [pid 20255] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20260] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20259] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20258] <... write resumed>) = -1 EFAULT (Bad address) [pid 20257] <... futex resumed>) = 0 [pid 20256] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20261 attached [pid 20260] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20258] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20257] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20256] <... futex resumed>) = 0 [pid 20261] set_robust_list(0x7f61a3ef39e0, 24 [pid 20260] pipe2( [pid 20259] <... clone resumed>, parent_tid=[20261], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20261 [pid 20258] <... futex resumed>) = 1 [pid 20257] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20256] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20255] <... futex resumed>) = 0 [pid 20261] <... set_robust_list resumed>) = 0 [pid 20260] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20259] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20258] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20257] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20255] exit_group(0 [pid 20261] mkdir("./file0", 0777 [pid 20260] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20259] <... futex resumed>) = 0 [pid 20258] <... futex resumed>) = ? [pid 20257] <... mprotect resumed>) = 0 [pid 20255] <... exit_group resumed>) = ? [pid 20261] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20260] <... futex resumed>) = 1 [pid 20259] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20258] +++ exited with 0 +++ [pid 20257] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20256] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20262 attached [pid 20261] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20260] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20256] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20255] +++ exited with 0 +++ [pid 20262] set_robust_list(0x7f61a3ef39e0, 24 [pid 20261] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20260] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20257] <... clone resumed>, parent_tid=[20262], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20262 [pid 20256] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20255, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20262] <... set_robust_list resumed>) = 0 [pid 20261] <... futex resumed>) = 1 [pid 20260] dup(4 [pid 20259] <... futex resumed>) = 0 [pid 20257] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20256] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20262] mkdir("./file0", 0777 [pid 20261] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20260] <... dup resumed>) = 5 [pid 20259] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20257] <... futex resumed>) = 0 [pid 20262] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20261] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20260] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20259] <... futex resumed>) = 0 [pid 20257] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20262] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20261] pipe2( [pid 20260] <... futex resumed>) = 1 [pid 20259] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20256] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20262] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20261] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20260] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20256] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20262] <... futex resumed>) = 1 [pid 20261] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20260] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20257] <... futex resumed>) = 0 [pid 20256] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20262] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20261] <... futex resumed>) = 1 [pid 20260] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20259] <... futex resumed>) = 0 [pid 20257] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20256] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20262] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20261] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20262] pipe2( [pid 3606] close(3 [pid 20259] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20257] <... futex resumed>) = 0 [pid 20262] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20260] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20259] <... futex resumed>) = 1 [pid 20257] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... close resumed>) = 0 [pid 20260] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20259] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20260] <... futex resumed>) = 1 [pid 20256] <... futex resumed>) = 0 [pid 20260] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20256] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20260] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20256] <... futex resumed>) = 0 [pid 20260] write(5, NULL, 176 [pid 20256] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20260] <... write resumed>) = -1 EFAULT (Bad address) [pid 20260] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20256] <... futex resumed>) = 0 [pid 20260] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20256] exit_group(0 [pid 20260] <... futex resumed>) = ? [pid 20256] <... exit_group resumed>) = ? [pid 20260] +++ exited with 0 +++ [pid 20256] +++ exited with 0 +++ [pid 20261] <... futex resumed>) = 0 [pid 20261] dup(4) = 5 [pid 20261] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20259] <... futex resumed>) = 0 [pid 20261] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20259] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20261] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20259] <... futex resumed>) = 0 [pid 20261] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20259] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20262] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20257] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20256, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20262] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20261] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20257] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20263 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20262] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20261] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20257] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20262] dup(4 [pid 20261] <... futex resumed>) = 1 [pid 20259] <... futex resumed>) = 0 [pid 20257] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20263 attached [pid 20262] <... dup resumed>) = 5 [pid 20261] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20259] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20262] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20261] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20259] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20262] <... futex resumed>) = 1 [pid 20261] write(5, NULL, 176 [pid 20259] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20257] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20263] set_robust_list(0x555556ba76e0, 24 [pid 20262] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20261] <... write resumed>) = -1 EFAULT (Bad address) [pid 20257] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20262] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20261] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20257] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20262] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20261] <... futex resumed>) = 1 [pid 20259] <... futex resumed>) = 0 [pid 20257] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] close(3 [pid 20263] <... set_robust_list resumed>) = 0 [pid 20261] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20259] exit_group(0 [pid 20263] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20261] <... futex resumed>) = ? [pid 20259] <... exit_group resumed>) = ? [pid 3604] <... close resumed>) = 0 [pid 20263] <... prctl resumed>) = 0 [pid 20261] +++ exited with 0 +++ [pid 20259] +++ exited with 0 +++ [pid 20263] setpgid(0, 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20263] <... setpgid resumed>) = 0 [pid 20263] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20259, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20264 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20263] <... openat resumed>) = 3 [pid 20263] write(3, "1000", 4) = 4 [pid 20263] close(3) = 0 [pid 20263] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20263] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20263] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20263] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20265], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20265 [pid 20263] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 20264 attached [pid 20263] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20264] set_robust_list(0x555556ba76e0, 24 [pid 3601] <... openat resumed>) = 3 [pid 20264] <... set_robust_list resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20265 attached [pid 20264] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20264] <... prctl resumed>) = 0 [pid 3601] close(3 [pid 20265] set_robust_list(0x7f61a3ef39e0, 24 [pid 20264] setpgid(0, 0 [pid 20262] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] <... close resumed>) = 0 [pid 20265] <... set_robust_list resumed>) = 0 [pid 20264] <... setpgid resumed>) = 0 [pid 20262] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20265] mkdir("./file0", 0777 [pid 20264] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20262] <... futex resumed>) = 1 [pid 20257] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20266 attached [pid 20265] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20264] <... openat resumed>) = 3 [pid 20262] write(5, NULL, 176 [pid 20257] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20266] set_robust_list(0x555556ba76e0, 24 [pid 20265] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20264] write(3, "1000", 4 [pid 20262] <... write resumed>) = -1 EFAULT (Bad address) [pid 20257] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20266 [pid 20266] <... set_robust_list resumed>) = 0 [pid 20265] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20264] <... write resumed>) = 4 [pid 20262] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20257] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20266] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20265] <... futex resumed>) = 1 [pid 20264] close(3 [pid 20263] <... futex resumed>) = 0 [pid 20262] <... futex resumed>) = 0 [pid 20257] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20266] <... prctl resumed>) = 0 [pid 20265] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20264] <... close resumed>) = 0 [pid 20263] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20262] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20257] exit_group(0 [pid 20266] setpgid(0, 0 [pid 20265] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20264] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20263] <... futex resumed>) = 0 [pid 20262] <... futex resumed>) = ? [pid 20257] <... exit_group resumed>) = ? [pid 20266] <... setpgid resumed>) = 0 [pid 20265] pipe2( [pid 20264] <... futex resumed>) = 0 [pid 20263] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20262] +++ exited with 0 +++ [pid 20264] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20264] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20264] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20257] +++ exited with 0 +++ [pid 20265] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20266] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20265] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20257, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20265] <... futex resumed>) = 1 [pid 20264] <... clone resumed>, parent_tid=[20267], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20267 [pid 20263] <... futex resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20266] <... openat resumed>) = 3 [pid 20265] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20264] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20263] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20266] write(3, "1000", 4 [pid 20265] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20264] <... futex resumed>) = 0 [pid 20263] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20267 attached [pid 20266] <... write resumed>) = 4 [pid 20265] dup(4 [pid 20264] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20263] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20266] close(3 [pid 20265] <... dup resumed>) = 5 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20266] <... close resumed>) = 0 [pid 20265] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20267] set_robust_list(0x7f61a3ef39e0, 24 [pid 3607] <... openat resumed>) = 3 [pid 20266] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20265] <... futex resumed>) = 1 [pid 20263] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20266] <... futex resumed>) = 0 [pid 20265] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20263] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20266] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20265] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20263] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20267] <... set_robust_list resumed>) = 0 [pid 20266] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20265] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20263] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 20267] mkdir("./file0", 0777 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20267] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20267] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20268 [pid 20267] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20264] <... futex resumed>) = 0 [pid 20267] pipe2( [pid 20264] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20267] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20264] <... futex resumed>) = 0 [pid 20267] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20264] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20267] <... futex resumed>) = 0 [pid 20264] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20267] dup(4 [pid 20264] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20267] <... dup resumed>) = 5 [pid 20264] <... futex resumed>) = 0 [pid 20267] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20264] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20267] <... futex resumed>) = 0 [pid 20266] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20264] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20267] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20266] <... mprotect resumed>) = 0 [pid 20264] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20264] <... futex resumed>) = 0 [pid 20267] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20266] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20264] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20268 attached [pid 20268] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20268] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20266] <... clone resumed>, parent_tid=[20269], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20269 [pid 20266] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20266] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20268] setpgid(0, 0) = 0 [pid 20268] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 20269 attached [pid 20268] write(3, "1000", 4 [pid 20265] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20265] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20269] set_robust_list(0x7f61a3ef39e0, 24 [pid 20268] <... write resumed>) = 4 [pid 20265] <... futex resumed>) = 1 [pid 20263] <... futex resumed>) = 0 [pid 20269] <... set_robust_list resumed>) = 0 [pid 20268] close(3 [pid 20265] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20269] mkdir("./file0", 0777 [pid 20268] <... close resumed>) = 0 [pid 20269] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20268] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20269] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20268] <... futex resumed>) = 0 [pid 20269] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20268] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20269] <... futex resumed>) = 1 [pid 20268] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20266] <... futex resumed>) = 0 [pid 20269] pipe2( [pid 20268] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20266] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20269] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20268] <... mprotect resumed>) = 0 [pid 20266] <... futex resumed>) = 0 [pid 20269] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20268] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20266] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20263] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20269] <... futex resumed>) = 0 [pid 20266] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20265] <... futex resumed>) = 0 [pid 20263] <... futex resumed>) = 1 [pid 20269] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20268] <... clone resumed>, parent_tid=[20270], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20270 [pid 20266] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20265] write(5, NULL, 176 [pid 20263] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20269] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20268] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20266] <... futex resumed>) = 0 [pid 20265] <... write resumed>) = -1 EFAULT (Bad address) [pid 20269] dup(4 [pid 20268] <... futex resumed>) = 0 [pid 20266] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20265] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20269] <... dup resumed>) = 5 [pid 20268] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20265] <... futex resumed>) = 1 [pid 20263] <... futex resumed>) = 0 [pid 20269] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20265] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20263] exit_group(0 [pid 20269] <... futex resumed>) = 1 [pid 20266] <... futex resumed>) = 0 [pid 20265] <... futex resumed>) = ? [pid 20263] <... exit_group resumed>) = ? [pid 20269] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20266] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20265] +++ exited with 0 +++ [pid 20269] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20266] <... futex resumed>) = 0 [pid 20269] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20266] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20270 attached [pid 20267] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20263] +++ exited with 0 +++ [pid 20270] set_robust_list(0x7f61a3ef39e0, 24 [pid 20267] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20270] <... set_robust_list resumed>) = 0 [pid 20267] <... futex resumed>) = 1 [pid 20264] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20263, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20267] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20264] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20267] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20264] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 20270] mkdir("./file0", 0777 [pid 20267] write(5, NULL, 176 [pid 20264] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... close resumed>) = 0 [pid 20267] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20269] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20267] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20270] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20269] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20267] <... futex resumed>) = 1 [pid 20264] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20271 [pid 20269] <... futex resumed>) = 1 [pid 20267] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20266] <... futex resumed>) = 0 [pid 20264] exit_group(0 [pid 20269] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20267] <... futex resumed>) = ? [pid 20266] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20264] <... exit_group resumed>) = ? [pid 20270] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20267] +++ exited with 0 +++ [pid 20266] <... futex resumed>) = 0 [pid 20266] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20271 attached [pid 20264] +++ exited with 0 +++ [pid 20269] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20270] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20269] write(5, NULL, 176 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20264, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20271] set_robust_list(0x555556ba76e0, 24 [pid 20270] <... futex resumed>) = 1 [pid 20269] <... write resumed>) = -1 EFAULT (Bad address) [pid 20268] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20271] <... set_robust_list resumed>) = 0 [pid 20270] pipe2( [pid 20269] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20268] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20271] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20270] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20269] <... futex resumed>) = 1 [pid 20268] <... futex resumed>) = 0 [pid 20266] <... futex resumed>) = 0 [pid 20271] <... prctl resumed>) = 0 [pid 20270] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20269] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20268] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20266] exit_group(0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20271] setpgid(0, 0 [pid 20270] <... futex resumed>) = 0 [pid 20269] <... futex resumed>) = ? [pid 20268] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20266] <... exit_group resumed>) = ? [pid 3604] <... openat resumed>) = 3 [pid 20271] <... setpgid resumed>) = 0 [pid 20270] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20269] +++ exited with 0 +++ [pid 20268] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20266] +++ exited with 0 +++ [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20270] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20270] dup(4 [pid 20268] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20270] <... dup resumed>) = 5 [pid 20268] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] close(3 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20266, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20271] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20270] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20268] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] <... close resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20270] <... futex resumed>) = 0 [pid 20268] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20271] <... openat resumed>) = 3 [pid 20270] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20268] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20272 attached [pid 20271] write(3, "1000", 4 [pid 20268] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20272] set_robust_list(0x555556ba76e0, 24 [pid 20271] <... write resumed>) = 4 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20272 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20272] <... set_robust_list resumed>) = 0 [pid 20271] close(3 [pid 3601] close(3 [pid 20272] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20271] <... close resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20272] <... prctl resumed>) = 0 [pid 20271] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20272] setpgid(0, 0 [pid 20271] <... futex resumed>) = 0 [pid 20272] <... setpgid resumed>) = 0 [pid 20271] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20270] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20273 [pid 20272] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20271] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20272] <... openat resumed>) = 3 [pid 20271] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20270] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20273 attached [pid 20272] write(3, "1000", 4 [pid 20271] <... mprotect resumed>) = 0 [pid 20270] <... futex resumed>) = 1 [pid 20268] <... futex resumed>) = 0 [pid 20272] <... write resumed>) = 4 [pid 20271] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20270] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20268] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20272] close(3) = 0 [pid 20271] <... clone resumed>, parent_tid=[20274], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20274 [pid 20270] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20268] <... futex resumed>) = 0 [pid 20273] set_robust_list(0x555556ba76e0, 24 [pid 20272] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20271] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20270] write(5, NULL, 176 [pid 20268] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20274 attached [pid 20272] <... futex resumed>) = 0 [pid 20271] <... futex resumed>) = 0 [pid 20270] <... write resumed>) = -1 EFAULT (Bad address) [pid 20273] <... set_robust_list resumed>) = 0 [pid 20274] set_robust_list(0x7f61a3ef39e0, 24 [pid 20272] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20271] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20270] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20272] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20270] <... futex resumed>) = 1 [pid 20268] <... futex resumed>) = 0 [pid 20273] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20272] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20270] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20273] <... prctl resumed>) = 0 [pid 20272] <... mprotect resumed>) = 0 [pid 20268] exit_group(0 [pid 20272] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20273] setpgid(0, 0 [pid 20270] <... futex resumed>) = ? [pid 20274] <... set_robust_list resumed>) = 0 [pid 20268] <... exit_group resumed>) = ? [pid 20272] <... clone resumed>, parent_tid=[20275], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20275 [pid 20272] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20272] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20275 attached [pid 20275] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20275] mkdir("./file0", 0777 [pid 20273] <... setpgid resumed>) = 0 [pid 20270] +++ exited with 0 +++ [pid 20275] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20275] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20275] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20272] <... futex resumed>) = 0 [pid 20268] +++ exited with 0 +++ [pid 20275] pipe2( [pid 20273] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20272] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20268, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20274] mkdir("./file0", 0777 [pid 20275] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20273] <... openat resumed>) = 3 [pid 20272] <... futex resumed>) = 0 [pid 20275] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20274] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20273] write(3, "1000", 4 [pid 20272] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20275] <... futex resumed>) = 0 [pid 20274] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20273] <... write resumed>) = 4 [pid 20272] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20275] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20274] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20273] close(3 [pid 20272] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20274] <... futex resumed>) = 1 [pid 20273] <... close resumed>) = 0 [pid 20272] <... futex resumed>) = 0 [pid 20271] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20275] dup(4 [pid 20274] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20273] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20272] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20271] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20275] <... dup resumed>) = 5 [pid 20274] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20273] <... futex resumed>) = 0 [pid 20271] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20275] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20274] pipe2( [pid 20273] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20271] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] close(3 [pid 20275] <... futex resumed>) = 1 [pid 20274] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20273] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20272] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20274] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20273] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20275] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20274] <... futex resumed>) = 1 [pid 20273] <... mprotect resumed>) = 0 [pid 20272] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20271] <... futex resumed>) = 0 [pid 20275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20274] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20273] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20272] <... futex resumed>) = 0 [pid 20271] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20276 [pid 20275] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20274] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20272] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20271] <... futex resumed>) = 0 [pid 20274] dup(4 [pid 20273] <... clone resumed>, parent_tid=[20277], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20277 [pid 20271] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20274] <... dup resumed>) = 5 [pid 20273] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20274] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20273] <... futex resumed>) = 0 [pid 20271] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20274] <... futex resumed>) = 0 [pid 20273] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20271] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20274] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005"./strace-static-x86_64: Process 20277 attached [pid 20277] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20277] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20277] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20277] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20273] <... futex resumed>) = 0 [pid 20277] pipe2( [pid 20273] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20277] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20273] <... futex resumed>) = 0 [pid 20277] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20273] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20277] <... futex resumed>) = 0 [pid 20273] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20277] dup(4 [pid 20273] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20277] <... dup resumed>) = 5 [pid 20273] <... futex resumed>) = 0 [pid 20277] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20273] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20277] <... futex resumed>) = 0 [pid 20273] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20277] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20273] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20271] <... futex resumed>) = 0 [pid 20277] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20273] <... futex resumed>) = 0 [pid 20271] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20276 attached [pid 20277] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20273] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20276] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20276] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20275] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20276] setpgid(0, 0 [pid 20275] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20274] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20276] <... setpgid resumed>) = 0 [pid 20275] <... futex resumed>) = 1 [pid 20274] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20272] <... futex resumed>) = 0 [pid 20276] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20275] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20274] <... futex resumed>) = 1 [pid 20272] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20271] <... futex resumed>) = 0 [pid 20276] <... openat resumed>) = 3 [pid 20275] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20274] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20272] <... futex resumed>) = 0 [pid 20271] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20276] write(3, "1000", 4 [pid 20275] write(5, NULL, 176 [pid 20274] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20272] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20271] <... futex resumed>) = 0 [pid 20276] <... write resumed>) = 4 [pid 20275] <... write resumed>) = -1 EFAULT (Bad address) [pid 20274] write(5, NULL, 176 [pid 20271] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20276] close(3 [pid 20275] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20274] <... write resumed>) = -1 EFAULT (Bad address) [pid 20276] <... close resumed>) = 0 [pid 20275] <... futex resumed>) = 1 [pid 20274] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20272] <... futex resumed>) = 0 [pid 20276] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20275] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20274] <... futex resumed>) = 1 [pid 20272] exit_group(0 [pid 20271] <... futex resumed>) = 0 [pid 20276] <... futex resumed>) = 0 [pid 20275] <... futex resumed>) = ? [pid 20274] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20272] <... exit_group resumed>) = ? [pid 20271] exit_group(0 [pid 20277] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20276] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20275] +++ exited with 0 +++ [pid 20274] <... futex resumed>) = ? [pid 20272] +++ exited with 0 +++ [pid 20271] <... exit_group resumed>) = ? [pid 20277] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20276] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20274] +++ exited with 0 +++ [pid 20271] +++ exited with 0 +++ [pid 20277] <... futex resumed>) = 1 [pid 20276] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20273] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20271, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20272, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20277] write(5, NULL, 176 [pid 20276] <... mprotect resumed>) = 0 [pid 20273] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20277] <... write resumed>) = -1 EFAULT (Bad address) [pid 20276] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20273] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20278 attached [pid 20277] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20273] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20278] set_robust_list(0x7f61a3ef39e0, 24 [pid 20277] <... futex resumed>) = 0 [pid 20276] <... clone resumed>, parent_tid=[20278], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20278 [pid 20273] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] <... openat resumed>) = 3 [pid 3604] <... openat resumed>) = 3 [pid 20278] <... set_robust_list resumed>) = 0 [pid 20277] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20276] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20273] exit_group(0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20278] mkdir("./file0", 0777 [pid 20277] <... futex resumed>) = ? [pid 20276] <... futex resumed>) = 0 [pid 20273] <... exit_group resumed>) = ? [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20278] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20277] +++ exited with 0 +++ [pid 20276] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] close(3 [pid 3604] close(3 [pid 20278] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3606] <... close resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20278] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20273] +++ exited with 0 +++ [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20278] <... futex resumed>) = 1 [pid 20276] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20273, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20278] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20276] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20279 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20280 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20278] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20276] <... futex resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20278] pipe2( [pid 20276] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20278] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20278] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20278] <... futex resumed>) = 1 [pid 20276] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20278] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20276] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20278] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20276] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20278] dup(4 [pid 20276] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] close(3 [pid 20278] <... dup resumed>) = 5 [pid 3601] <... close resumed>) = 0 ./strace-static-x86_64: Process 20280 attached [pid 20278] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20280] set_robust_list(0x555556ba76e0, 24 [pid 20278] <... futex resumed>) = 1 [pid 20276] <... futex resumed>) = 0 [pid 20280] <... set_robust_list resumed>) = 0 [pid 20278] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20276] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20281 [pid 20280] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20278] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20276] <... futex resumed>) = 0 [pid 20280] <... prctl resumed>) = 0 [pid 20278] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20276] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20280] setpgid(0, 0) = 0 [pid 20280] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20280] write(3, "1000", 4) = 4 [pid 20280] close(3) = 0 [pid 20280] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20280] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 20279 attached ) = 0x7f61a3ed3000 [pid 20280] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20280] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20281 attached [pid 20279] set_robust_list(0x555556ba76e0, 24 [pid 20280] <... clone resumed>, parent_tid=[20282], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20282 [pid 20279] <... set_robust_list resumed>) = 0 [pid 20281] set_robust_list(0x555556ba76e0, 24 [pid 20280] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20279] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20281] <... set_robust_list resumed>) = 0 [pid 20280] <... futex resumed>) = 0 [pid 20280] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20279] <... prctl resumed>) = 0 [pid 20281] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20279] setpgid(0, 0 [pid 20281] setpgid(0, 0 [pid 20279] <... setpgid resumed>) = 0 [pid 20278] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20281] <... setpgid resumed>) = 0 [pid 20279] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20278] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20276] <... futex resumed>) = 0 [pid 20279] <... openat resumed>) = 3 [pid 20278] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20276] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20281] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20278] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20276] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20282 attached [pid 20281] <... openat resumed>) = 3 [pid 20279] write(3, "1000", 4 [pid 20278] write(5, NULL, 176 [pid 20276] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20282] set_robust_list(0x7f61a3ef39e0, 24 [pid 20281] write(3, "1000", 4 [pid 20279] <... write resumed>) = 4 [pid 20278] <... write resumed>) = -1 EFAULT (Bad address) [pid 20282] <... set_robust_list resumed>) = 0 [pid 20281] <... write resumed>) = 4 [pid 20279] close(3 [pid 20278] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20282] mkdir("./file0", 0777 [pid 20281] close(3 [pid 20279] <... close resumed>) = 0 [pid 20278] <... futex resumed>) = 1 [pid 20276] <... futex resumed>) = 0 [pid 20282] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20281] <... close resumed>) = 0 [pid 20279] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20278] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20276] exit_group(0 [pid 20282] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20281] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20279] <... futex resumed>) = 0 [pid 20278] <... futex resumed>) = ? [pid 20276] <... exit_group resumed>) = ? [pid 20282] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20281] <... futex resumed>) = 0 [pid 20279] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20278] +++ exited with 0 +++ [pid 20276] +++ exited with 0 +++ [pid 20282] <... futex resumed>) = 1 [pid 20281] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20280] <... futex resumed>) = 0 [pid 20279] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20276, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20282] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20281] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20280] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20279] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20282] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20281] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20280] <... futex resumed>) = 0 [pid 20279] <... mprotect resumed>) = 0 [pid 20282] pipe2( [pid 20281] <... mprotect resumed>) = 0 [pid 20280] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20282] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20281] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20279] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20282] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20281] <... clone resumed>, parent_tid=[20283], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20283 [pid 20280] <... futex resumed>) = 0 [pid 20279] <... clone resumed>, parent_tid=[20284], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20284 [pid 3607] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20284 attached ./strace-static-x86_64: Process 20283 attached [pid 20282] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20281] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20280] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20279] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20284] set_robust_list(0x7f61a3ef39e0, 24 [pid 20283] set_robust_list(0x7f61a3ef39e0, 24 [pid 20282] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20281] <... futex resumed>) = 0 [pid 20280] <... futex resumed>) = 0 [pid 20279] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20282] dup(4 [pid 20281] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20280] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20279] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] close(3 [pid 20282] <... dup resumed>) = 5 [pid 20282] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 20282] <... futex resumed>) = 1 [pid 20280] <... futex resumed>) = 0 [pid 20282] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20280] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20282] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20280] <... futex resumed>) = 0 [pid 20282] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20280] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20284] <... set_robust_list resumed>) = 0 [pid 20284] mkdir("./file0", 0777 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20285 [pid 20284] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20284] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20284] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20279] <... futex resumed>) = 0 [pid 20284] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20283] <... set_robust_list resumed>) = 0 [pid 20282] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20279] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20284] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20282] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20279] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20285 attached [pid 20284] pipe2( [pid 20282] <... futex resumed>) = 1 [pid 20280] <... futex resumed>) = 0 [pid 20279] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20285] set_robust_list(0x555556ba76e0, 24 [pid 20284] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20283] mkdir("./file0", 0777 [pid 20282] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20280] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20285] <... set_robust_list resumed>) = 0 [pid 20284] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20283] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20282] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20280] <... futex resumed>) = 0 [pid 20285] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20284] <... futex resumed>) = 1 [pid 20283] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20282] write(5, NULL, 176 [pid 20280] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20279] <... futex resumed>) = 0 [pid 20285] <... prctl resumed>) = 0 [pid 20284] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20282] <... write resumed>) = -1 EFAULT (Bad address) [pid 20285] setpgid(0, 0 [pid 20284] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20283] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20282] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20279] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20285] <... setpgid resumed>) = 0 [pid 20284] dup(4 [pid 20283] <... futex resumed>) = 1 [pid 20282] <... futex resumed>) = 1 [pid 20281] <... futex resumed>) = 0 [pid 20280] <... futex resumed>) = 0 [pid 20279] <... futex resumed>) = 0 [pid 20285] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20284] <... dup resumed>) = 5 [pid 20283] pipe2( [pid 20282] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20281] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20280] exit_group(0 [pid 20279] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20285] <... openat resumed>) = 3 [pid 20284] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20283] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20282] <... futex resumed>) = ? [pid 20281] <... futex resumed>) = 0 [pid 20280] <... exit_group resumed>) = ? [pid 20279] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20285] write(3, "1000", 4 [pid 20284] <... futex resumed>) = 0 [pid 20282] +++ exited with 0 +++ [pid 20281] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20280] +++ exited with 0 +++ [pid 20279] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20285] <... write resumed>) = 4 [pid 20284] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20279] <... futex resumed>) = 0 [pid 20285] close(3 [pid 20283] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20279] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20280, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20283] <... futex resumed>) = 1 [pid 20281] <... futex resumed>) = 0 [pid 20285] <... close resumed>) = 0 [pid 20283] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20281] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20285] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20281] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20285] <... futex resumed>) = 0 [pid 20284] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20283] dup(4 [pid 20281] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20285] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20284] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20283] <... dup resumed>) = 5 [pid 20285] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20284] <... futex resumed>) = 1 [pid 20283] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20279] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20285] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20284] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20283] <... futex resumed>) = 1 [pid 20281] <... futex resumed>) = 0 [pid 20279] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 20285] <... mprotect resumed>) = 0 [pid 20284] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20283] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20281] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20279] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20285] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20284] write(5, NULL, 176 [pid 20283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20281] <... futex resumed>) = 0 [pid 20279] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20284] <... write resumed>) = -1 EFAULT (Bad address) [pid 20283] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20281] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] close(3 [pid 20285] <... clone resumed>, parent_tid=[20286], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20286 [pid 20284] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 20285] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20284] <... futex resumed>) = 1 [pid 20279] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20285] <... futex resumed>) = 0 [pid 20284] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20279] exit_group(0 [pid 20285] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20284] <... futex resumed>) = ? [pid 20279] <... exit_group resumed>) = ? [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20287 [pid 20284] +++ exited with 0 +++ [pid 20279] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20279, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 20287 attached ./strace-static-x86_64: Process 20286 attached [pid 20287] set_robust_list(0x555556ba76e0, 24 [pid 20286] set_robust_list(0x7f61a3ef39e0, 24 [pid 20287] <... set_robust_list resumed>) = 0 [pid 20286] <... set_robust_list resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20286] mkdir("./file0", 0777 [pid 20283] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20283] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20283] <... futex resumed>) = 1 [pid 20281] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20283] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20281] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20283] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20281] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20283] write(5, NULL, 176 [pid 20281] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20283] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20288 [pid 20283] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20281] <... futex resumed>) = 0 [pid 20286] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20283] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20281] exit_group(0 [pid 20283] <... futex resumed>) = ? [pid 20286] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20281] <... exit_group resumed>) = ? [pid 20286] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20283] +++ exited with 0 +++ [pid 20281] +++ exited with 0 +++ [pid 20286] <... futex resumed>) = 1 [pid 20285] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20281, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20285] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20286] pipe2( [pid 20285] <... futex resumed>) = 0 [pid 20285] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20286] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20286] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20288 attached [pid 20286] <... futex resumed>) = 1 [pid 20285] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20288] set_robust_list(0x555556ba76e0, 24 [pid 20287] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20286] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20285] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 20288] <... set_robust_list resumed>) = 0 [pid 20287] <... prctl resumed>) = 0 [pid 20286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20285] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20288] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20287] setpgid(0, 0 [pid 20286] dup(4 [pid 20285] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20288] <... prctl resumed>) = 0 [pid 20287] <... setpgid resumed>) = 0 [pid 20286] <... dup resumed>) = 5 [pid 20288] setpgid(0, 0 [pid 20287] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20286] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20289 [pid 20288] <... setpgid resumed>) = 0 [pid 20286] <... futex resumed>) = 1 [pid 20285] <... futex resumed>) = 0 [pid 20288] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20287] <... openat resumed>) = 3 [pid 20286] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20285] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20288] <... openat resumed>) = 3 [pid 20287] write(3, "1000", 4 [pid 20286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20285] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20289 attached [pid 20288] write(3, "1000", 4 [pid 20287] <... write resumed>) = 4 [pid 20286] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20285] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20289] set_robust_list(0x555556ba76e0, 24 [pid 20288] <... write resumed>) = 4 [pid 20289] <... set_robust_list resumed>) = 0 [pid 20288] close(3 [pid 20289] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20288] <... close resumed>) = 0 [pid 20289] <... prctl resumed>) = 0 [pid 20288] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20289] setpgid(0, 0 [pid 20288] <... futex resumed>) = 0 [pid 20289] <... setpgid resumed>) = 0 [pid 20288] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20289] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20288] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20289] <... openat resumed>) = 3 [pid 20288] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20289] write(3, "1000", 4 [pid 20288] <... mprotect resumed>) = 0 [pid 20287] close(3 [pid 20289] <... write resumed>) = 4 [pid 20288] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20289] close(3) = 0 [pid 20288] <... clone resumed>, parent_tid=[20290], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20290 [pid 20289] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20288] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20289] <... futex resumed>) = 0 [pid 20288] <... futex resumed>) = 0 [pid 20289] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20288] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20289] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20289] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20289] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20291], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20291 [pid 20289] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20289] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20290 attached [pid 20290] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20287] <... close resumed>) = 0 [pid 20287] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20290] mkdir("./file0", 0777 [pid 20287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20290] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20287] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20290] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20287] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20290] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20287] <... mprotect resumed>) = 0 [pid 20290] <... futex resumed>) = 1 [pid 20288] <... futex resumed>) = 0 [pid 20290] pipe2( [pid 20288] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20287] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20286] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20290] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20288] <... futex resumed>) = 0 [pid 20290] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20288] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20286] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20291 attached [pid 20290] <... futex resumed>) = 0 [pid 20288] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20287] <... clone resumed>, parent_tid=[20292], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20292 [pid 20286] <... futex resumed>) = 1 [pid 20285] <... futex resumed>) = 0 [pid 20290] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20288] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20287] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20286] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20285] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20290] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20288] <... futex resumed>) = 0 [pid 20287] <... futex resumed>) = 0 [pid 20286] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20285] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20292 attached [pid 20290] dup(4 [pid 20288] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20287] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20286] write(5, NULL, 176 [pid 20285] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20292] set_robust_list(0x7f61a3ef39e0, 24 [pid 20291] set_robust_list(0x7f61a3ef39e0, 24 [pid 20290] <... dup resumed>) = 5 [pid 20286] <... write resumed>) = -1 EFAULT (Bad address) [pid 20292] <... set_robust_list resumed>) = 0 [pid 20291] <... set_robust_list resumed>) = 0 [pid 20290] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20286] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20292] mkdir("./file0", 0777 [pid 20291] mkdir("./file0", 0777 [pid 20290] <... futex resumed>) = 1 [pid 20288] <... futex resumed>) = 0 [pid 20286] <... futex resumed>) = 1 [pid 20285] <... futex resumed>) = 0 [pid 20292] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20291] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20290] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20288] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20286] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20285] exit_group(0 [pid 20292] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20291] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20290] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20288] <... futex resumed>) = 0 [pid 20286] <... futex resumed>) = ? [pid 20285] <... exit_group resumed>) = ? [pid 20292] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20291] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20290] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20288] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20286] +++ exited with 0 +++ [pid 20292] <... futex resumed>) = 1 [pid 20291] <... futex resumed>) = 1 [pid 20289] <... futex resumed>) = 0 [pid 20287] <... futex resumed>) = 0 [pid 20285] +++ exited with 0 +++ [pid 20291] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20289] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20287] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20291] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20285, si_uid=0, si_status=0, si_utime=2, si_stime=1} --- [pid 20291] pipe2( [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20292] pipe2( [pid 20291] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20289] <... futex resumed>) = 0 [pid 20287] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20292] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20291] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20289] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20287] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20291] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20292] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20289] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20291] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20289] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 20292] <... futex resumed>) = 1 [pid 20291] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20289] <... futex resumed>) = 0 [pid 20287] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20292] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20291] dup(4 [pid 20289] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20287] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20292] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20291] <... dup resumed>) = 5 [pid 20287] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20293 attached [pid 20292] dup(4 [pid 20291] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20287] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20293 [pid 20292] <... dup resumed>) = 5 [pid 20291] <... futex resumed>) = 1 [pid 20289] <... futex resumed>) = 0 [pid 20292] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20291] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20289] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20292] <... futex resumed>) = 1 [pid 20291] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20289] <... futex resumed>) = 0 [pid 20287] <... futex resumed>) = 0 [pid 20292] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20291] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20289] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20287] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20293] set_robust_list(0x555556ba76e0, 24 [pid 20292] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20290] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20287] <... futex resumed>) = 0 [pid 20293] <... set_robust_list resumed>) = 0 [pid 20292] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20290] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20287] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20293] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20290] <... futex resumed>) = 1 [pid 20288] <... futex resumed>) = 0 [pid 20293] <... prctl resumed>) = 0 [pid 20290] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20288] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20293] setpgid(0, 0 [pid 20290] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20288] <... futex resumed>) = 0 [pid 20293] <... setpgid resumed>) = 0 [pid 20291] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20290] write(5, NULL, 176 [pid 20288] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20293] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20292] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20291] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20290] <... write resumed>) = -1 EFAULT (Bad address) [pid 20293] <... openat resumed>) = 3 [pid 20292] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20291] <... futex resumed>) = 1 [pid 20290] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20289] <... futex resumed>) = 0 [pid 20293] write(3, "1000", 4 [pid 20290] <... futex resumed>) = 1 [pid 20288] <... futex resumed>) = 0 [pid 20293] <... write resumed>) = 4 [pid 20290] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20288] exit_group(0 [pid 20293] close(3 [pid 20290] <... futex resumed>) = ? [pid 20288] <... exit_group resumed>) = ? [pid 20293] <... close resumed>) = 0 [pid 20292] <... futex resumed>) = 1 [pid 20291] write(5, NULL, 176 [pid 20290] +++ exited with 0 +++ [pid 20289] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20288] +++ exited with 0 +++ [pid 20287] <... futex resumed>) = 0 [pid 20293] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20292] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20291] <... write resumed>) = -1 EFAULT (Bad address) [pid 20289] <... futex resumed>) = 0 [pid 20287] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20288, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20293] <... futex resumed>) = 0 [pid 20292] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20291] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20289] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20287] <... futex resumed>) = 0 [pid 20293] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20292] write(5, NULL, 176 [pid 20291] <... futex resumed>) = 0 [pid 20289] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20287] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20293] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20292] <... write resumed>) = -1 EFAULT (Bad address) [pid 20291] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20289] exit_group(0 [pid 20293] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20292] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20289] <... exit_group resumed>) = ? [pid 20291] <... futex resumed>) = ? [pid 20293] <... mprotect resumed>) = 0 [pid 20292] <... futex resumed>) = 1 [pid 20287] <... futex resumed>) = 0 [pid 20293] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20287] exit_group(0 [pid 20291] +++ exited with 0 +++ [pid 20289] +++ exited with 0 +++ [pid 20287] <... exit_group resumed>) = ? [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 20294 attached [pid 20293] <... clone resumed>, parent_tid=[20294], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20294 [pid 20292] +++ exited with 0 +++ [pid 20287] +++ exited with 0 +++ [pid 3606] <... openat resumed>) = 3 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20289, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20294] set_robust_list(0x7f61a3ef39e0, 24 [pid 20293] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20287, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20294] <... set_robust_list resumed>) = 0 [pid 20293] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... restart_syscall resumed>) = 0 [pid 20294] mkdir("./file0", 0777 [pid 20293] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] close(3 [pid 20294] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3606] <... close resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20294] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... openat resumed>) = 3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20294] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] <... openat resumed>) = 3 [pid 20294] <... futex resumed>) = 1 [pid 20293] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20295 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20294] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20293] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20294] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20293] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 3601] close(3 [pid 20294] pipe2( [pid 20293] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... close resumed>) = 0 ./strace-static-x86_64: Process 20295 attached [pid 20294] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20295] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20295] setpgid(0, 0) = 0 [pid 20295] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20295] write(3, "1000", 4) = 4 [pid 20295] close(3) = 0 [pid 20295] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20295] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20295] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20295] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20294] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20295] <... clone resumed>, parent_tid=[20297], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20297 [pid 20294] <... futex resumed>) = 1 [pid 20293] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20296 [pid 20295] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20295] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20293] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20294] dup(4 [pid 20293] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20298 ./strace-static-x86_64: Process 20298 attached ./strace-static-x86_64: Process 20297 attached ./strace-static-x86_64: Process 20296 attached [pid 20294] <... dup resumed>) = 5 [pid 20293] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20298] set_robust_list(0x555556ba76e0, 24 [pid 20297] set_robust_list(0x7f61a3ef39e0, 24 [pid 20294] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20296] set_robust_list(0x555556ba76e0, 24 [pid 20293] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20297] <... set_robust_list resumed>) = 0 [pid 20298] <... set_robust_list resumed>) = 0 [pid 20297] mkdir("./file0", 0777 [pid 20296] <... set_robust_list resumed>) = 0 [pid 20294] <... futex resumed>) = 0 [pid 20293] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20298] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20297] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20294] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20293] <... futex resumed>) = 0 [pid 20297] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20297] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20295] <... futex resumed>) = 0 [pid 20297] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20295] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20293] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20295] <... futex resumed>) = 0 [pid 20297] pipe2( [pid 20295] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20297] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20297] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20298] <... prctl resumed>) = 0 [pid 20297] <... futex resumed>) = 1 [pid 20295] <... futex resumed>) = 0 [pid 20297] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20296] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20295] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20295] <... futex resumed>) = 0 [pid 20297] dup(4 [pid 20295] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20297] <... dup resumed>) = 5 [pid 20297] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20295] <... futex resumed>) = 0 [pid 20298] setpgid(0, 0 [pid 20297] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20296] <... prctl resumed>) = 0 [pid 20295] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20295] <... futex resumed>) = 0 [pid 20298] <... setpgid resumed>) = 0 [pid 20297] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20296] setpgid(0, 0 [pid 20295] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20298] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20296] <... setpgid resumed>) = 0 [pid 20298] <... openat resumed>) = 3 [pid 20296] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20298] write(3, "1000", 4 [pid 20296] <... openat resumed>) = 3 [pid 20298] <... write resumed>) = 4 [pid 20296] write(3, "1000", 4 [pid 20298] close(3 [pid 20296] <... write resumed>) = 4 [pid 20298] <... close resumed>) = 0 [pid 20296] close(3 [pid 20298] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20296] <... close resumed>) = 0 [pid 20298] <... futex resumed>) = 0 [pid 20296] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20298] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20296] <... futex resumed>) = 0 [pid 20298] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20296] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20298] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20296] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20298] <... mprotect resumed>) = 0 [pid 20296] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20298] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20296] <... mprotect resumed>) = 0 [pid 20296] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20299 attached [pid 20298] <... clone resumed>, parent_tid=[20299], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20299 ./strace-static-x86_64: Process 20300 attached [pid 20299] set_robust_list(0x7f61a3ef39e0, 24 [pid 20298] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20294] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20299] <... set_robust_list resumed>) = 0 [pid 20298] <... futex resumed>) = 0 [pid 20297] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20296] <... clone resumed>, parent_tid=[20300], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20300 [pid 20294] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20300] set_robust_list(0x7f61a3ef39e0, 24 [pid 20299] mkdir("./file0", 0777 [pid 20298] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20297] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20296] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20294] <... futex resumed>) = 1 [pid 20293] <... futex resumed>) = 0 [pid 20300] <... set_robust_list resumed>) = 0 [pid 20299] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20297] <... futex resumed>) = 1 [pid 20296] <... futex resumed>) = 0 [pid 20295] <... futex resumed>) = 0 [pid 20294] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20293] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20300] mkdir("./file0", 0777 [pid 20299] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20297] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20296] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20295] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20294] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20293] <... futex resumed>) = 0 [pid 20300] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20299] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20297] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20295] <... futex resumed>) = 0 [pid 20294] write(5, NULL, 176 [pid 20293] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20300] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20299] <... futex resumed>) = 1 [pid 20298] <... futex resumed>) = 0 [pid 20297] write(5, NULL, 176 [pid 20295] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20294] <... write resumed>) = -1 EFAULT (Bad address) [pid 20300] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20299] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20298] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20297] <... write resumed>) = -1 EFAULT (Bad address) [pid 20294] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20300] <... futex resumed>) = 1 [pid 20299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20298] <... futex resumed>) = 0 [pid 20297] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20296] <... futex resumed>) = 0 [pid 20294] <... futex resumed>) = 1 [pid 20293] <... futex resumed>) = 0 [pid 20300] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20299] pipe2( [pid 20298] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20297] <... futex resumed>) = 1 [pid 20296] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20295] <... futex resumed>) = 0 [pid 20294] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20293] exit_group(0 [pid 20300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20299] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20297] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20296] <... futex resumed>) = 0 [pid 20295] exit_group(0 [pid 20294] <... futex resumed>) = ? [pid 20293] <... exit_group resumed>) = ? [pid 20300] pipe2( [pid 20299] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20297] <... futex resumed>) = ? [pid 20296] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20295] <... exit_group resumed>) = ? [pid 20294] +++ exited with 0 +++ [pid 20300] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20299] <... futex resumed>) = 1 [pid 20298] <... futex resumed>) = 0 [pid 20297] +++ exited with 0 +++ [pid 20295] +++ exited with 0 +++ [pid 20293] +++ exited with 0 +++ [pid 20300] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20299] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20298] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20293, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20300] <... futex resumed>) = 1 [pid 20299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20298] <... futex resumed>) = 0 [pid 20296] <... futex resumed>) = 0 [pid 20300] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20299] dup(4 [pid 20298] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20296] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20295, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20299] <... dup resumed>) = 5 [pid 20296] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20300] dup(4 [pid 20299] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20296] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20300] <... dup resumed>) = 5 [pid 20299] <... futex resumed>) = 1 [pid 20298] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20300] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20299] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20298] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20300] <... futex resumed>) = 1 [pid 20299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20298] <... futex resumed>) = 0 [pid 20296] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20300] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20299] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20298] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20296] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] close(3 [pid 20300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20296] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20300] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20296] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] close(3) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20301 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20302 ./strace-static-x86_64: Process 20301 attached ./strace-static-x86_64: Process 20302 attached [pid 20301] set_robust_list(0x555556ba76e0, 24 [pid 20300] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20300] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20299] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20300] <... futex resumed>) = 1 [pid 20299] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20296] <... futex resumed>) = 0 [pid 20300] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20299] <... futex resumed>) = 1 [pid 20298] <... futex resumed>) = 0 [pid 20296] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20299] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20298] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20296] <... futex resumed>) = 0 [pid 20302] set_robust_list(0x555556ba76e0, 24 [pid 20301] <... set_robust_list resumed>) = 0 [pid 20300] write(5, NULL, 176 [pid 20299] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20298] <... futex resumed>) = 0 [pid 20296] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20302] <... set_robust_list resumed>) = 0 [pid 20301] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20300] <... write resumed>) = -1 EFAULT (Bad address) [pid 20299] write(5, NULL, 176 [pid 20298] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20302] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20301] <... prctl resumed>) = 0 [pid 20300] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20299] <... write resumed>) = -1 EFAULT (Bad address) [pid 20302] <... prctl resumed>) = 0 [pid 20301] setpgid(0, 0 [pid 20300] <... futex resumed>) = 1 [pid 20299] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20296] <... futex resumed>) = 0 [pid 20302] setpgid(0, 0 [pid 20301] <... setpgid resumed>) = 0 [pid 20300] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20299] <... futex resumed>) = 1 [pid 20298] <... futex resumed>) = 0 [pid 20296] exit_group(0 [pid 20302] <... setpgid resumed>) = 0 [pid 20301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20300] <... futex resumed>) = ? [pid 20299] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20298] exit_group(0 [pid 20296] <... exit_group resumed>) = ? [pid 20302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20301] <... openat resumed>) = 3 [pid 20300] +++ exited with 0 +++ [pid 20299] <... futex resumed>) = ? [pid 20298] <... exit_group resumed>) = ? [pid 20296] +++ exited with 0 +++ [pid 20302] <... openat resumed>) = 3 [pid 20301] write(3, "1000", 4 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20296, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20302] write(3, "1000", 4 [pid 20301] <... write resumed>) = 4 [pid 20299] +++ exited with 0 +++ [pid 20298] +++ exited with 0 +++ [pid 20302] <... write resumed>) = 4 [pid 20301] close(3 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20298, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20302] close(3 [pid 20301] <... close resumed>) = 0 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20302] <... close resumed>) = 0 [pid 20301] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... restart_syscall resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] <... openat resumed>) = 3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20302] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20301] <... futex resumed>) = 0 [pid 3604] close(3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20302] <... futex resumed>) = 0 [pid 20301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20301] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20302] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20301] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20302] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20301] <... mprotect resumed>) = 0 [pid 20302] <... mprotect resumed>) = 0 [pid 20301] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20302] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20301] <... clone resumed>, parent_tid=[20303], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20303 [pid 3604] <... close resumed>) = 0 [pid 3601] close(3 [pid 20302] <... clone resumed>, parent_tid=[20304], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20304 [pid 20301] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... close resumed>) = 0 [pid 20302] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20301] <... futex resumed>) = 0 [pid 20302] <... futex resumed>) = 0 [pid 20301] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20302] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20305 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20306 ./strace-static-x86_64: Process 20306 attached ./strace-static-x86_64: Process 20305 attached ./strace-static-x86_64: Process 20304 attached ./strace-static-x86_64: Process 20303 attached [pid 20305] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20306] set_robust_list(0x555556ba76e0, 24 [pid 20305] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20304] set_robust_list(0x7f61a3ef39e0, 24 [pid 20303] set_robust_list(0x7f61a3ef39e0, 24 [pid 20306] <... set_robust_list resumed>) = 0 [pid 20305] <... prctl resumed>) = 0 [pid 20305] setpgid(0, 0) = 0 [pid 20306] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20304] <... set_robust_list resumed>) = 0 [pid 20303] <... set_robust_list resumed>) = 0 [pid 20306] <... prctl resumed>) = 0 [pid 20305] <... openat resumed>) = 3 [pid 20304] mkdir("./file0", 0777 [pid 20306] setpgid(0, 0 [pid 20305] write(3, "1000", 4 [pid 20304] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20303] mkdir("./file0", 0777 [pid 20305] <... write resumed>) = 4 [pid 20305] close(3 [pid 20306] <... setpgid resumed>) = 0 [pid 20305] <... close resumed>) = 0 [pid 20304] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20303] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20305] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20305] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20304] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20303] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20306] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20305] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20305] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20303] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20302] <... futex resumed>) = 0 [pid 20304] <... futex resumed>) = 1 [pid 20306] <... openat resumed>) = 3 [pid 20305] <... mprotect resumed>) = 0 [pid 20303] <... futex resumed>) = 1 [pid 20302] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20301] <... futex resumed>) = 0 [pid 20306] write(3, "1000", 4 [pid 20305] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20304] pipe2( [pid 20303] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20302] <... futex resumed>) = 0 [pid 20301] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20307 attached [pid 20306] <... write resumed>) = 4 [pid 20304] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20302] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20301] <... futex resumed>) = 0 [pid 20307] set_robust_list(0x7f61a3ef39e0, 24 [pid 20306] close(3 [pid 20305] <... clone resumed>, parent_tid=[20307], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20307 [pid 20304] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20303] pipe2( [pid 20302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20301] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20307] <... set_robust_list resumed>) = 0 [pid 20306] <... close resumed>) = 0 [pid 20305] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20304] <... futex resumed>) = 0 [pid 20303] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20302] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20307] mkdir("./file0", 0777 [pid 20306] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20305] <... futex resumed>) = 0 [pid 20304] dup(4 [pid 20303] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20302] <... futex resumed>) = 0 [pid 20307] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20306] <... futex resumed>) = 0 [pid 20305] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20304] <... dup resumed>) = 5 [pid 20303] <... futex resumed>) = 1 [pid 20302] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20301] <... futex resumed>) = 0 [pid 20307] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20306] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20304] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20303] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20302] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20301] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20307] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20306] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20304] <... futex resumed>) = 0 [pid 20303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20302] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20301] <... futex resumed>) = 0 [pid 20307] <... futex resumed>) = 1 [pid 20306] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20305] <... futex resumed>) = 0 [pid 20304] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20303] dup(4 [pid 20302] <... futex resumed>) = 0 [pid 20301] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20307] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20306] <... mprotect resumed>) = 0 [pid 20305] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20303] <... dup resumed>) = 5 [pid 20302] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20307] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20305] <... futex resumed>) = 0 [pid 20307] pipe2( [pid 20305] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20307] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20307] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20305] <... futex resumed>) = 0 [pid 20307] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20305] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20307] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20305] <... futex resumed>) = 0 [pid 20307] dup(4 [pid 20305] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20307] <... dup resumed>) = 5 [pid 20307] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20305] <... futex resumed>) = 0 [pid 20307] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20305] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20307] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20305] <... futex resumed>) = 0 [pid 20307] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20305] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20306] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20304] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20303] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20304] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20303] <... futex resumed>) = 1 [pid 20301] <... futex resumed>) = 0 [pid 20306] <... clone resumed>, parent_tid=[20308], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20308 [pid 20304] <... futex resumed>) = 1 [pid 20303] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20302] <... futex resumed>) = 0 [pid 20301] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20306] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20304] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20302] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20301] <... futex resumed>) = 0 [pid 20306] <... futex resumed>) = 0 [pid 20304] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20303] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20302] <... futex resumed>) = 0 [pid 20301] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20306] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20304] write(5, NULL, 176 [pid 20302] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20304] <... write resumed>) = -1 EFAULT (Bad address) [pid 20304] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20302] <... futex resumed>) = 0 [pid 20304] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20302] exit_group(0 [pid 20304] <... futex resumed>) = ? [pid 20302] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20308 attached [pid 20307] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20304] +++ exited with 0 +++ [pid 20302] +++ exited with 0 +++ [pid 20308] set_robust_list(0x7f61a3ef39e0, 24 [pid 20307] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20308] <... set_robust_list resumed>) = 0 [pid 20307] <... futex resumed>) = 1 [pid 20305] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20302, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20308] mkdir("./file0", 0777 [pid 20307] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20305] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20303] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20308] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20307] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20305] <... futex resumed>) = 0 [pid 20303] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20308] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20307] write(5, NULL, 176 [pid 20305] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20303] <... futex resumed>) = 1 [pid 20301] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20308] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20307] <... write resumed>) = -1 EFAULT (Bad address) [pid 20303] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20301] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20308] <... futex resumed>) = 1 [pid 20307] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20306] <... futex resumed>) = 0 [pid 20303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20301] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20308] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20307] <... futex resumed>) = 1 [pid 20306] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20305] <... futex resumed>) = 0 [pid 20303] write(5, NULL, 176 [pid 20301] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 20306] <... futex resumed>) = 0 [pid 20303] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20307] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20306] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20305] exit_group(0 [pid 20303] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20308] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20307] <... futex resumed>) = ? [pid 20305] <... exit_group resumed>) = ? [pid 20303] <... futex resumed>) = 1 [pid 20301] <... futex resumed>) = 0 [pid 20307] +++ exited with 0 +++ [pid 20303] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20301] exit_group(0 [pid 20308] pipe2( [pid 20305] +++ exited with 0 +++ [pid 20303] <... futex resumed>) = ? [pid 20301] <... exit_group resumed>) = ? [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20309 [pid 20303] +++ exited with 0 +++ [pid 20301] +++ exited with 0 +++ [pid 20308] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20305, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20308] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20301, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20308] <... futex resumed>) = 1 [pid 20306] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20308] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20306] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 20308] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20306] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20308] dup(4 [pid 20306] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20309 attached [pid 20308] <... dup resumed>) = 5 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 20309] set_robust_list(0x555556ba76e0, 24 [pid 20308] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 3604] close(3 [pid 20309] <... set_robust_list resumed>) = 0 [pid 20308] <... futex resumed>) = 1 [pid 20306] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... close resumed>) = 0 [pid 20309] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20308] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20306] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20309] <... prctl resumed>) = 0 [pid 20308] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20306] <... futex resumed>) = 0 [pid 20309] setpgid(0, 0 [pid 20308] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20306] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20310 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20311 ./strace-static-x86_64: Process 20311 attached ./strace-static-x86_64: Process 20310 attached [pid 20309] <... setpgid resumed>) = 0 [pid 20311] set_robust_list(0x555556ba76e0, 24 [pid 20310] set_robust_list(0x555556ba76e0, 24 [pid 20311] <... set_robust_list resumed>) = 0 [pid 20310] <... set_robust_list resumed>) = 0 [pid 20309] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20311] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20310] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20311] <... prctl resumed>) = 0 [pid 20310] <... prctl resumed>) = 0 [pid 20309] <... openat resumed>) = 3 [pid 20308] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20311] setpgid(0, 0 [pid 20310] setpgid(0, 0 [pid 20309] write(3, "1000", 4 [pid 20308] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20311] <... setpgid resumed>) = 0 [pid 20310] <... setpgid resumed>) = 0 [pid 20309] <... write resumed>) = 4 [pid 20308] <... futex resumed>) = 1 [pid 20306] <... futex resumed>) = 0 [pid 20310] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20309] close(3 [pid 20308] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20306] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20311] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20310] <... openat resumed>) = 3 [pid 20309] <... close resumed>) = 0 [pid 20308] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20306] <... futex resumed>) = 0 [pid 20311] <... openat resumed>) = 3 [pid 20310] write(3, "1000", 4 [pid 20309] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20308] write(5, NULL, 176 [pid 20306] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20311] write(3, "1000", 4 [pid 20310] <... write resumed>) = 4 [pid 20309] <... futex resumed>) = 0 [pid 20308] <... write resumed>) = -1 EFAULT (Bad address) [pid 20311] <... write resumed>) = 4 [pid 20310] close(3 [pid 20309] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20308] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20311] close(3 [pid 20310] <... close resumed>) = 0 [pid 20309] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20308] <... futex resumed>) = 1 [pid 20306] <... futex resumed>) = 0 [pid 20311] <... close resumed>) = 0 [pid 20310] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20309] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20308] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20306] exit_group(0 [pid 20311] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20310] <... futex resumed>) = 0 [pid 20309] <... mprotect resumed>) = 0 [pid 20308] <... futex resumed>) = ? [pid 20306] <... exit_group resumed>) = ? [pid 20311] <... futex resumed>) = 0 [pid 20310] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20309] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20308] +++ exited with 0 +++ [pid 20309] <... clone resumed>, parent_tid=[20312], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20312 [pid 20309] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20310] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20306] +++ exited with 0 +++ [pid 20311] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20310] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20309] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20312 attached [pid 20311] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20310] <... mprotect resumed>) = 0 [pid 20309] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20306, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20312] set_robust_list(0x7f61a3ef39e0, 24 [pid 20311] <... mprotect resumed>) = 0 [pid 20310] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20312] <... set_robust_list resumed>) = 0 [pid 20311] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... restart_syscall resumed>) = 0 [pid 20312] mkdir("./file0", 0777 [pid 20310] <... clone resumed>, parent_tid=[20313], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20313 [pid 20312] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20311] <... clone resumed>, parent_tid=[20314], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20314 [pid 20310] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20314 attached ./strace-static-x86_64: Process 20313 attached [pid 20312] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20311] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20310] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20312] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20311] <... futex resumed>) = 0 [pid 20310] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] <... openat resumed>) = 3 [pid 20314] set_robust_list(0x7f61a3ef39e0, 24 [pid 20313] set_robust_list(0x7f61a3ef39e0, 24 [pid 20312] <... futex resumed>) = 1 [pid 20309] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20312] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20309] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20312] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20309] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20312] pipe2( [pid 20309] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... close resumed>) = 0 [pid 20314] <... set_robust_list resumed>) = 0 [pid 20313] <... set_robust_list resumed>) = 0 [pid 20312] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20311] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20315 attached [pid 20314] mkdir("./file0", 0777 [pid 20313] mkdir("./file0", 0777 [pid 20312] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20309] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20315 [pid 20315] set_robust_list(0x555556ba76e0, 24 [pid 20314] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20312] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20309] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20315] <... set_robust_list resumed>) = 0 [pid 20312] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20314] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20309] <... futex resumed>) = 0 [pid 20315] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20314] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20313] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20312] dup(4 [pid 20309] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20315] <... prctl resumed>) = 0 [pid 20312] <... dup resumed>) = 5 [pid 20311] <... futex resumed>) = 0 [pid 20315] setpgid(0, 0 [pid 20314] <... futex resumed>) = 1 [pid 20313] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20312] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20311] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20315] <... setpgid resumed>) = 0 [pid 20314] pipe2( [pid 20313] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20312] <... futex resumed>) = 1 [pid 20311] <... futex resumed>) = 0 [pid 20309] <... futex resumed>) = 0 [pid 20315] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20314] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20313] <... futex resumed>) = 1 [pid 20312] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20311] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20310] <... futex resumed>) = 0 [pid 20309] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20315] <... openat resumed>) = 3 [pid 20314] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20313] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20312] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20311] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20310] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20309] <... futex resumed>) = 0 [pid 20315] write(3, "1000", 4 [pid 20314] <... futex resumed>) = 0 [pid 20313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20312] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20311] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20310] <... futex resumed>) = 0 [pid 20309] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20315] <... write resumed>) = 4 [pid 20314] dup(4 [pid 20313] pipe2( [pid 20311] <... futex resumed>) = 0 [pid 20310] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20314] <... dup resumed>) = 5 [pid 20313] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20311] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20314] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20313] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20311] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20315] close(3 [pid 20314] <... futex resumed>) = 0 [pid 20313] <... futex resumed>) = 1 [pid 20311] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20310] <... futex resumed>) = 0 [pid 20314] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20313] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20311] <... futex resumed>) = 0 [pid 20310] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20315] <... close resumed>) = 0 [pid 20313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20311] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20310] <... futex resumed>) = 0 [pid 20315] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20313] dup(4 [pid 20310] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20315] <... futex resumed>) = 0 [pid 20313] <... dup resumed>) = 5 [pid 20315] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20313] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20315] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20314] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20313] <... futex resumed>) = 1 [pid 20312] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20310] <... futex resumed>) = 0 [pid 20315] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20314] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20313] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20312] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20310] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20315] <... mprotect resumed>) = 0 [pid 20314] <... futex resumed>) = 1 [pid 20313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20312] <... futex resumed>) = 1 [pid 20311] <... futex resumed>) = 0 [pid 20310] <... futex resumed>) = 0 [pid 20309] <... futex resumed>) = 0 [pid 20315] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20314] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20313] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20312] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20311] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20310] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20309] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20316 attached [pid 20314] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20312] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20311] <... futex resumed>) = 0 [pid 20314] write(5, NULL, 176 [pid 20312] write(5, NULL, 176 [pid 20311] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20316] set_robust_list(0x7f61a3ef39e0, 24 [pid 20315] <... clone resumed>, parent_tid=[20316], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20316 [pid 20314] <... write resumed>) = -1 EFAULT (Bad address) [pid 20313] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20312] <... write resumed>) = -1 EFAULT (Bad address) [pid 20309] <... futex resumed>) = 0 [pid 20316] <... set_robust_list resumed>) = 0 [pid 20315] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20314] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20313] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20312] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20309] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20315] <... futex resumed>) = 0 [pid 20314] <... futex resumed>) = 1 [pid 20313] <... futex resumed>) = 1 [pid 20312] <... futex resumed>) = 0 [pid 20311] <... futex resumed>) = 0 [pid 20310] <... futex resumed>) = 0 [pid 20309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20315] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20314] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20313] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20312] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20311] exit_group(0 [pid 20310] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20309] exit_group(0 [pid 20316] mkdir("./file0", 0777 [pid 20314] <... futex resumed>) = ? [pid 20313] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20312] <... futex resumed>) = ? [pid 20311] <... exit_group resumed>) = ? [pid 20310] <... futex resumed>) = 0 [pid 20309] <... exit_group resumed>) = ? [pid 20316] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20314] +++ exited with 0 +++ [pid 20313] write(5, NULL, 176 [pid 20312] +++ exited with 0 +++ [pid 20311] +++ exited with 0 +++ [pid 20310] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20313] <... write resumed>) = -1 EFAULT (Bad address) [pid 20313] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20310] <... futex resumed>) = 0 [pid 20313] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20310] exit_group(0 [pid 20309] +++ exited with 0 +++ [pid 20316] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20313] <... futex resumed>) = ? [pid 20310] <... exit_group resumed>) = ? [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20309, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20311, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20316] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20313] +++ exited with 0 +++ [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20316] <... futex resumed>) = 1 [pid 20315] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20316] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20315] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20310] +++ exited with 0 +++ [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20316] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20315] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20310, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20316] pipe2( [pid 20315] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] close(3 [pid 20316] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] <... close resumed>) = 0 [pid 20316] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20316] <... futex resumed>) = 1 [pid 20315] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20316] dup(4 [pid 20315] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20317 [pid 20316] <... dup resumed>) = 5 [pid 20315] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20316] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20315] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] close(3 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 20317 attached [pid 20316] <... futex resumed>) = 0 [pid 20315] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... close resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20317] set_robust_list(0x555556ba76e0, 24 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20317] <... set_robust_list resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20317] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3606] close(3 [pid 20317] <... prctl resumed>) = 0 [pid 20316] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20315] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... close resumed>) = 0 [pid 20317] setpgid(0, 0 [pid 20315] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20317] <... setpgid resumed>) = 0 [pid 20315] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20317] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20318 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20319 [pid 20317] <... openat resumed>) = 3 [pid 20317] write(3, "1000", 4) = 4 [pid 20317] close(3) = 0 [pid 20317] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 20319 attached [pid 20317] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20319] set_robust_list(0x555556ba76e0, 24 [pid 20317] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20319] <... set_robust_list resumed>) = 0 [pid 20317] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20319] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20317] <... mprotect resumed>) = 0 [pid 20319] <... prctl resumed>) = 0 [pid 20317] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20319] setpgid(0, 0) = 0 [pid 20317] <... clone resumed>, parent_tid=[20320], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20320 [pid 20319] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20317] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20319] <... openat resumed>) = 3 [pid 20317] <... futex resumed>) = 0 [pid 20319] write(3, "1000", 4 [pid 20317] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20319] <... write resumed>) = 4 [pid 20319] close(3) = 0 [pid 20319] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20319] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20319] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 20318 attached [pid 20319] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20316] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20320 attached [pid 20316] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20320] set_robust_list(0x7f61a3ef39e0, 24 [pid 20319] <... clone resumed>, parent_tid=[20321], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20321 [pid 20318] set_robust_list(0x555556ba76e0, 24 [pid 20320] <... set_robust_list resumed>) = 0 [pid 20319] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20316] <... futex resumed>) = 1 [pid 20318] <... set_robust_list resumed>) = 0 [pid 20315] <... futex resumed>) = 0 [pid 20319] <... futex resumed>) = 0 [pid 20316] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20315] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20318] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20320] mkdir("./file0", 0777 [pid 20319] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20318] <... prctl resumed>) = 0 [pid 20316] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20320] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20315] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20321 attached [pid 20320] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20318] setpgid(0, 0 [pid 20316] write(5, NULL, 176 [pid 20315] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20321] set_robust_list(0x7f61a3ef39e0, 24 [pid 20320] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20318] <... setpgid resumed>) = 0 [pid 20316] <... write resumed>) = -1 EFAULT (Bad address) [pid 20321] <... set_robust_list resumed>) = 0 [pid 20320] <... futex resumed>) = 1 [pid 20318] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20317] <... futex resumed>) = 0 [pid 20316] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20321] mkdir("./file0", 0777 [pid 20320] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20318] <... openat resumed>) = 3 [pid 20317] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20316] <... futex resumed>) = 1 [pid 20315] <... futex resumed>) = 0 [pid 20321] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20318] write(3, "1000", 4 [pid 20317] <... futex resumed>) = 0 [pid 20316] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20315] exit_group(0 [pid 20321] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20320] pipe2( [pid 20318] <... write resumed>) = 4 [pid 20317] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20316] <... futex resumed>) = ? [pid 20315] <... exit_group resumed>) = ? [pid 20321] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20320] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20318] close(3 [pid 20316] +++ exited with 0 +++ [pid 20321] <... futex resumed>) = 1 [pid 20320] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20319] <... futex resumed>) = 0 [pid 20318] <... close resumed>) = 0 [pid 20315] +++ exited with 0 +++ [pid 20321] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20320] <... futex resumed>) = 1 [pid 20319] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20318] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20317] <... futex resumed>) = 0 [pid 20321] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20320] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20319] <... futex resumed>) = 0 [pid 20318] <... futex resumed>) = 0 [pid 20317] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20315, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20321] pipe2( [pid 20320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20319] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20318] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20317] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20321] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20320] dup(4 [pid 20318] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20317] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 20321] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20320] <... dup resumed>) = 5 [pid 20318] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20321] <... futex resumed>) = 1 [pid 20320] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20319] <... futex resumed>) = 0 [pid 20318] <... mprotect resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20321] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20319] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20319] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20321] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20320] <... futex resumed>) = 1 [pid 20318] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20317] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20321] dup(4 [pid 20320] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20317] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 20321] <... dup resumed>) = 5 [pid 20320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20318] <... clone resumed>, parent_tid=[20322], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20322 [pid 20317] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20321] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20320] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20318] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20317] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20322 attached [pid 20321] <... futex resumed>) = 1 [pid 20319] <... futex resumed>) = 0 [pid 20318] <... futex resumed>) = 0 [pid 20322] set_robust_list(0x7f61a3ef39e0, 24 [pid 20321] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20319] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20318] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20322] <... set_robust_list resumed>) = 0 [pid 20321] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20319] <... futex resumed>) = 0 [pid 20322] mkdir("./file0", 0777 [pid 20319] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20322] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20322] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20322] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20322] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20323 attached [pid 20323] set_robust_list(0x555556ba76e0, 24 [pid 20321] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20318] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20323 [pid 20318] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20322] <... futex resumed>) = 0 [pid 20318] <... futex resumed>) = 1 [pid 20322] pipe2( [pid 20318] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20322] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20322] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20320] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20318] <... futex resumed>) = 0 [pid 20322] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20320] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20318] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20322] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20318] <... futex resumed>) = 0 [pid 20322] dup(4 [pid 20323] <... set_robust_list resumed>) = 0 [pid 20322] <... dup resumed>) = 5 [pid 20320] <... futex resumed>) = 1 [pid 20318] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20317] <... futex resumed>) = 0 [pid 20323] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20322] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20320] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20318] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20317] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20323] <... prctl resumed>) = 0 [pid 20322] <... futex resumed>) = 0 [pid 20320] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20318] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20317] <... futex resumed>) = 0 [pid 20323] setpgid(0, 0 [pid 20322] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20318] <... futex resumed>) = 0 [pid 20317] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20323] <... setpgid resumed>) = 0 [pid 20320] write(5, NULL, 176 [pid 20318] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20323] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20320] <... write resumed>) = -1 EFAULT (Bad address) [pid 20323] <... openat resumed>) = 3 [pid 20323] write(3, "1000", 4) = 4 [pid 20323] close(3) = 0 [pid 20321] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20320] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20321] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20320] <... futex resumed>) = 1 [pid 20323] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20321] <... futex resumed>) = 1 [pid 20320] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20319] <... futex resumed>) = 0 [pid 20317] <... futex resumed>) = 0 [pid 20323] <... futex resumed>) = 0 [pid 20321] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20319] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20317] exit_group(0 [pid 20323] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20321] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20320] <... futex resumed>) = ? [pid 20319] <... futex resumed>) = 0 [pid 20317] <... exit_group resumed>) = ? [pid 20323] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20322] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20321] write(5, NULL, 176 [pid 20320] +++ exited with 0 +++ [pid 20319] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20323] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20322] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20321] <... write resumed>) = -1 EFAULT (Bad address) [pid 20317] +++ exited with 0 +++ [pid 20323] <... mprotect resumed>) = 0 [pid 20322] <... futex resumed>) = 1 [pid 20321] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20318] <... futex resumed>) = 0 [pid 20323] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20322] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20321] <... futex resumed>) = 1 [pid 20319] <... futex resumed>) = 0 [pid 20318] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20324 attached [pid 20322] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20321] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20319] exit_group(0 [pid 20318] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20317, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20323] <... clone resumed>, parent_tid=[20324], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20324 [pid 20322] write(5, NULL, 176 [pid 20321] <... futex resumed>) = ? [pid 20319] <... exit_group resumed>) = ? [pid 20318] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20324] set_robust_list(0x7f61a3ef39e0, 24 [pid 20323] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20322] <... write resumed>) = -1 EFAULT (Bad address) [pid 20321] +++ exited with 0 +++ [pid 3604] <... openat resumed>) = 3 [pid 20324] <... set_robust_list resumed>) = 0 [pid 20323] <... futex resumed>) = 0 [pid 20322] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20319] +++ exited with 0 +++ [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20324] mkdir("./file0", 0777 [pid 20323] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20322] <... futex resumed>) = 1 [pid 20318] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20324] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20318] exit_group(0 [pid 20322] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20319, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] close(3 [pid 20324] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20322] <... futex resumed>) = ? [pid 20318] <... exit_group resumed>) = ? [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] <... close resumed>) = 0 [pid 20324] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20322] +++ exited with 0 +++ [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20324] <... futex resumed>) = 1 [pid 20323] <... futex resumed>) = 0 [pid 20318] +++ exited with 0 +++ [pid 3606] <... openat resumed>) = 3 [pid 20324] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20323] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20325 [pid 20324] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20323] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20318, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20324] pipe2( [pid 20323] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3606] close(3./strace-static-x86_64: Process 20325 attached [pid 20324] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20325] set_robust_list(0x555556ba76e0, 24 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20325] <... set_robust_list resumed>) = 0 [pid 20325] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20326 [pid 20325] <... prctl resumed>) = 0 [pid 20325] setpgid(0, 0) = 0 [pid 20325] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20325] write(3, "1000", 4) = 4 [pid 20325] close(3./strace-static-x86_64: Process 20326 attached ) = 0 [pid 20324] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20325] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20325] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20325] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20325] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20324] <... futex resumed>) = 1 [pid 20323] <... futex resumed>) = 0 [pid 20326] set_robust_list(0x555556ba76e0, 24 [pid 20325] <... clone resumed>, parent_tid=[20327], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20327 [pid 20324] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20323] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20327 attached [pid 20326] <... set_robust_list resumed>) = 0 [pid 20325] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20324] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20323] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20327] set_robust_list(0x7f61a3ef39e0, 24 [pid 20326] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20325] <... futex resumed>) = 0 [pid 20324] dup(4 [pid 20323] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... openat resumed>) = 3 [pid 20327] <... set_robust_list resumed>) = 0 [pid 20326] <... prctl resumed>) = 0 [pid 20325] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20324] <... dup resumed>) = 5 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20327] mkdir("./file0", 0777 [pid 20326] setpgid(0, 0 [pid 20324] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20327] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20326] <... setpgid resumed>) = 0 [pid 20324] <... futex resumed>) = 1 [pid 20323] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20327] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20326] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20324] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20323] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 20323] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20323] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20328 attached [pid 20328] set_robust_list(0x555556ba76e0, 24 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20328 [pid 20326] <... openat resumed>) = 3 [pid 20326] write(3, "1000", 4) = 4 [pid 20326] close(3) = 0 [pid 20326] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20328] <... set_robust_list resumed>) = 0 [pid 20328] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20326] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20328] <... prctl resumed>) = 0 [pid 20328] setpgid(0, 0) = 0 [pid 20328] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20328] write(3, "1000", 4) = 4 [pid 20328] close(3) = 0 [pid 20328] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20328] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20328] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20328] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20329], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20329 [pid 20328] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20326] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20328] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20326] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20327] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20326] <... mprotect resumed>) = 0 [pid 20327] <... futex resumed>) = 1 [pid 20326] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20325] <... futex resumed>) = 0 [pid 20327] pipe2( [pid 20325] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20327] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20326] <... clone resumed>, parent_tid=[20330], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20330 [pid 20325] <... futex resumed>) = 0 [pid 20327] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20326] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20325] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20327] <... futex resumed>) = 0 [pid 20326] <... futex resumed>) = 0 [pid 20325] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20327] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20326] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20325] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20330 attached [pid 20327] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20325] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20329 attached [pid 20330] set_robust_list(0x7f61a3ef39e0, 24 [pid 20327] dup(4 [pid 20325] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20330] <... set_robust_list resumed>) = 0 [pid 20329] set_robust_list(0x7f61a3ef39e0, 24 [pid 20327] <... dup resumed>) = 5 [pid 20329] <... set_robust_list resumed>) = 0 [pid 20330] mkdir("./file0", 0777 [pid 20329] mkdir("./file0", 0777 [pid 20327] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20324] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20330] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20329] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20327] <... futex resumed>) = 1 [pid 20325] <... futex resumed>) = 0 [pid 20324] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20330] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20329] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20327] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20325] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20324] <... futex resumed>) = 1 [pid 20323] <... futex resumed>) = 0 [pid 20330] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20329] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20327] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20325] <... futex resumed>) = 0 [pid 20323] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20329] <... futex resumed>) = 1 [pid 20328] <... futex resumed>) = 0 [pid 20325] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20324] write(5, NULL, 176 [pid 20323] <... futex resumed>) = 0 [pid 20330] <... futex resumed>) = 1 [pid 20329] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20328] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20327] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20326] <... futex resumed>) = 0 [pid 20324] <... write resumed>) = -1 EFAULT (Bad address) [pid 20323] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20330] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20329] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20328] <... futex resumed>) = 0 [pid 20330] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20329] pipe2( [pid 20328] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20326] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20324] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20330] pipe2( [pid 20329] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20326] <... futex resumed>) = 0 [pid 20324] <... futex resumed>) = 1 [pid 20323] <... futex resumed>) = 0 [pid 20330] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20329] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20326] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20324] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20323] exit_group(0 [pid 20330] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20329] <... futex resumed>) = 1 [pid 20328] <... futex resumed>) = 0 [pid 20327] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20324] <... futex resumed>) = ? [pid 20323] <... exit_group resumed>) = ? [pid 20330] <... futex resumed>) = 1 [pid 20329] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20328] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20327] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20326] <... futex resumed>) = 0 [pid 20324] +++ exited with 0 +++ [pid 20323] +++ exited with 0 +++ [pid 20330] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20329] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20328] <... futex resumed>) = 0 [pid 20327] <... futex resumed>) = 1 [pid 20326] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20325] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20323, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20330] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20329] dup(4 [pid 20328] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20327] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20326] <... futex resumed>) = 0 [pid 20325] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20330] dup(4 [pid 20329] <... dup resumed>) = 5 [pid 20327] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20326] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20325] <... futex resumed>) = 0 [pid 20330] <... dup resumed>) = 5 [pid 20329] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20327] write(5, NULL, 176 [pid 20325] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20330] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20329] <... futex resumed>) = 1 [pid 20328] <... futex resumed>) = 0 [pid 20327] <... write resumed>) = -1 EFAULT (Bad address) [pid 20330] <... futex resumed>) = 1 [pid 20329] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20328] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20327] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20326] <... futex resumed>) = 0 [pid 20330] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20329] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20328] <... futex resumed>) = 0 [pid 20327] <... futex resumed>) = 1 [pid 20326] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20325] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20330] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20329] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20328] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20327] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20326] <... futex resumed>) = 0 [pid 20325] exit_group(0 [pid 20330] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20327] <... futex resumed>) = ? [pid 20326] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20325] <... exit_group resumed>) = ? [pid 3601] <... openat resumed>) = 3 [pid 20329] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20327] +++ exited with 0 +++ [pid 20325] +++ exited with 0 +++ [pid 20329] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20329] <... futex resumed>) = 1 [pid 20328] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20325, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20329] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20328] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 3601] close(3 [pid 20329] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20328] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20329] write(5, NULL, 176 [pid 20328] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... close resumed>) = 0 [pid 20329] <... write resumed>) = -1 EFAULT (Bad address) [pid 20329] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20329] <... futex resumed>) = 1 [pid 20328] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20329] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20328] exit_group(0 [pid 20329] <... futex resumed>) = ? [pid 20328] <... exit_group resumed>) = ? [pid 20329] +++ exited with 0 +++ [pid 20328] +++ exited with 0 +++ [pid 3604] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20331 attached [pid 20331] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20331] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20331] setpgid(0, 0) = 0 [pid 20331] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20331] write(3, "1000", 4) = 4 [pid 20331] close(3) = 0 [pid 20331] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20328, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20331 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20331] <... futex resumed>) = 0 [pid 20331] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20331] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20331] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20332 [pid 20331] <... clone resumed>, parent_tid=[20333], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20333 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20331] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20330] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 20331] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20331] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20332 attached [pid 20332] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20332] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20330] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20334 [pid 20326] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20333 attached [pid 20330] <... futex resumed>) = 1 [pid 20332] <... prctl resumed>) = 0 [pid 20326] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20333] set_robust_list(0x7f61a3ef39e0, 24 [pid 20332] setpgid(0, 0 [pid 20330] write(5, NULL, 176 [pid 20326] <... futex resumed>) = 0 [pid 20333] <... set_robust_list resumed>) = 0 [pid 20332] <... setpgid resumed>) = 0 [pid 20330] <... write resumed>) = -1 EFAULT (Bad address) [pid 20326] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20333] mkdir("./file0", 0777 [pid 20332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20333] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20332] <... openat resumed>) = 3 [pid 20330] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20333] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20332] write(3, "1000", 4 [pid 20326] <... futex resumed>) = 0 [pid 20333] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20332] <... write resumed>) = 4 [pid 20330] <... futex resumed>) = 1 [pid 20326] exit_group(0 [pid 20333] <... futex resumed>) = 1 [pid 20332] close(3 [pid 20331] <... futex resumed>) = 0 [pid 20326] <... exit_group resumed>) = ? [pid 20333] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20332] <... close resumed>) = 0 [pid 20331] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20333] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20332] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20331] <... futex resumed>) = 0 [pid 20333] pipe2( [pid 20332] <... futex resumed>) = 0 [pid 20331] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20333] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20333] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20332] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20330] +++ exited with 0 +++ [pid 20326] +++ exited with 0 +++ [pid 20333] <... futex resumed>) = 1 [pid 20332] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20331] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20326, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 20334 attached [pid 20333] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20332] <... mprotect resumed>) = 0 [pid 20331] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20334] set_robust_list(0x555556ba76e0, 24 [pid 20333] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20332] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20331] <... futex resumed>) = 0 [pid 20333] dup(4 [pid 20331] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20334] <... set_robust_list resumed>) = 0 [pid 20333] <... dup resumed>) = 5 [pid 20332] <... clone resumed>, parent_tid=[20335], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20335 [pid 3606] <... openat resumed>) = 3 [pid 20333] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20332] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20334] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20333] <... futex resumed>) = 1 [pid 20332] <... futex resumed>) = 0 [pid 20331] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20334] <... prctl resumed>) = 0 [pid 20333] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20332] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20331] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 20334] setpgid(0, 0 [pid 20333] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20331] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20333] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20331] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20336 attached [pid 20334] <... setpgid resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20336 ./strace-static-x86_64: Process 20335 attached [pid 20335] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20335] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20335] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20335] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20332] <... futex resumed>) = 0 [pid 20335] pipe2( [pid 20332] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20335] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20332] <... futex resumed>) = 0 [pid 20335] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20332] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20335] <... futex resumed>) = 0 [pid 20332] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20335] dup(4 [pid 20332] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20335] <... dup resumed>) = 5 [pid 20334] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20332] <... futex resumed>) = 0 [pid 20336] set_robust_list(0x555556ba76e0, 24 [pid 20335] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20332] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20336] <... set_robust_list resumed>) = 0 [pid 20335] <... futex resumed>) = 0 [pid 20334] <... openat resumed>) = 3 [pid 20332] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20336] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20335] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20334] write(3, "1000", 4 [pid 20332] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20336] <... prctl resumed>) = 0 [pid 20335] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20334] <... write resumed>) = 4 [pid 20333] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20332] <... futex resumed>) = 0 [pid 20336] setpgid(0, 0 [pid 20335] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20334] close(3 [pid 20333] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20332] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20336] <... setpgid resumed>) = 0 [pid 20334] <... close resumed>) = 0 [pid 20333] <... futex resumed>) = 1 [pid 20331] <... futex resumed>) = 0 [pid 20336] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20335] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20334] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20333] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20331] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20336] <... openat resumed>) = 3 [pid 20335] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20334] <... futex resumed>) = 0 [pid 20333] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20331] <... futex resumed>) = 0 [pid 20336] write(3, "1000", 4 [pid 20335] <... futex resumed>) = 1 [pid 20334] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20333] write(5, NULL, 176 [pid 20332] <... futex resumed>) = 0 [pid 20331] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20336] <... write resumed>) = 4 [pid 20335] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20334] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20333] <... write resumed>) = -1 EFAULT (Bad address) [pid 20332] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20336] close(3 [pid 20335] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20334] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20333] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20332] <... futex resumed>) = 0 [pid 20336] <... close resumed>) = 0 [pid 20335] write(5, NULL, 176 [pid 20334] <... mprotect resumed>) = 0 [pid 20333] <... futex resumed>) = 1 [pid 20332] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20331] <... futex resumed>) = 0 [pid 20336] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20335] <... write resumed>) = -1 EFAULT (Bad address) [pid 20334] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20333] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20331] exit_group(0 [pid 20336] <... futex resumed>) = 0 [pid 20335] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20333] <... futex resumed>) = ? [pid 20331] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20337 attached [pid 20336] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20335] <... futex resumed>) = 1 [pid 20334] <... clone resumed>, parent_tid=[20337], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20337 [pid 20333] +++ exited with 0 +++ [pid 20332] <... futex resumed>) = 0 [pid 20337] set_robust_list(0x7f61a3ef39e0, 24 [pid 20336] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20335] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20334] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20332] exit_group(0 [pid 20331] +++ exited with 0 +++ [pid 20336] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20335] <... futex resumed>) = ? [pid 20334] <... futex resumed>) = 0 [pid 20332] <... exit_group resumed>) = ? [pid 20337] <... set_robust_list resumed>) = 0 [pid 20336] <... mprotect resumed>) = 0 [pid 20335] +++ exited with 0 +++ [pid 20334] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20331, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20337] mkdir("./file0", 0777 [pid 20336] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20332] +++ exited with 0 +++ [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20337] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3601] <... restart_syscall resumed>) = 0 [pid 20337] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20336] <... clone resumed>, parent_tid=[20338], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20338 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20332, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20337] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20336] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20337] <... futex resumed>) = 1 [pid 20336] <... futex resumed>) = 0 [pid 20334] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20337] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20336] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20334] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] <... openat resumed>) = 3 [pid 20337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20334] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20338 attached [pid 20337] pipe2( [pid 20334] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] close(3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20338] set_robust_list(0x7f61a3ef39e0, 24 [pid 20337] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] <... close resumed>) = 0 [pid 3601] close(3 [pid 20338] <... set_robust_list resumed>) = 0 [pid 20337] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... close resumed>) = 0 ./strace-static-x86_64: Process 20339 attached [pid 20338] mkdir("./file0", 0777 [pid 20337] <... futex resumed>) = 1 [pid 20334] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20338] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20337] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20334] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20339 [pid 20338] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20338] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20336] <... futex resumed>) = 0 [pid 20334] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20340 [pid 20339] set_robust_list(0x555556ba76e0, 24 [pid 20338] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20337] dup(4 [pid 20336] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20334] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20339] <... set_robust_list resumed>) = 0 [pid 20338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20337] <... dup resumed>) = 5 [pid 20336] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20340 attached [pid 20338] pipe2( [pid 20337] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20336] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20339] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20340] set_robust_list(0x555556ba76e0, 24 [pid 20338] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20337] <... futex resumed>) = 1 [pid 20334] <... futex resumed>) = 0 [pid 20339] <... prctl resumed>) = 0 [pid 20340] <... set_robust_list resumed>) = 0 [pid 20339] setpgid(0, 0 [pid 20338] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20337] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20334] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20340] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20339] <... setpgid resumed>) = 0 [pid 20338] <... futex resumed>) = 1 [pid 20337] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20336] <... futex resumed>) = 0 [pid 20334] <... futex resumed>) = 0 [pid 20340] <... prctl resumed>) = 0 [pid 20338] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20337] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20336] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20334] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20340] setpgid(0, 0 [pid 20338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20336] <... futex resumed>) = 0 [pid 20340] <... setpgid resumed>) = 0 [pid 20338] dup(4 [pid 20336] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20338] <... dup resumed>) = 5 [pid 20340] <... openat resumed>) = 3 [pid 20338] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20340] write(3, "1000", 4 [pid 20338] <... futex resumed>) = 1 [pid 20336] <... futex resumed>) = 0 [pid 20340] <... write resumed>) = 4 [pid 20338] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20336] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20340] close(3 [pid 20338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20336] <... futex resumed>) = 0 [pid 20340] <... close resumed>) = 0 [pid 20338] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20336] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20340] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20339] <... openat resumed>) = 3 [pid 20340] <... futex resumed>) = 0 [pid 20340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20340] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20340] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20339] write(3, "1000", 4 [pid 20340] <... clone resumed>, parent_tid=[20341], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20341 [pid 20340] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20340] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20341 attached [pid 20341] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20341] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20341] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20341] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20340] <... futex resumed>) = 0 [pid 20340] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20340] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20341] <... futex resumed>) = 1 [pid 20341] pipe2([3, 4], 0) = 0 [pid 20341] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20340] <... futex resumed>) = 0 [pid 20340] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20340] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20341] <... futex resumed>) = 1 [pid 20341] dup(4) = 5 [pid 20341] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20340] <... futex resumed>) = 0 [pid 20340] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20341] <... futex resumed>) = 1 [pid 20340] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20341] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20339] <... write resumed>) = 4 [pid 20339] close(3) = 0 [pid 20339] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20339] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20339] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20339] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20342], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20342 [pid 20339] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20337] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20339] <... futex resumed>) = 0 [pid 20337] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20339] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20334] <... futex resumed>) = 0 [pid 20337] <... futex resumed>) = 1 [pid 20337] write(5, NULL, 176 [pid 20334] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20337] <... write resumed>) = -1 EFAULT (Bad address) [pid 20334] <... futex resumed>) = 0 [pid 20338] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20334] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20338] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20337] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20338] <... futex resumed>) = 1 [pid 20337] <... futex resumed>) = 0 [pid 20336] <... futex resumed>) = 0 [pid 20334] exit_group(0./strace-static-x86_64: Process 20342 attached [pid 20338] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20336] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20334] <... exit_group resumed>) = ? [pid 20342] set_robust_list(0x7f61a3ef39e0, 24 [pid 20338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20337] +++ exited with 0 +++ [pid 20336] <... futex resumed>) = 0 [pid 20334] +++ exited with 0 +++ [pid 20342] <... set_robust_list resumed>) = 0 [pid 20338] write(5, NULL, 176 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20334, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20342] mkdir("./file0", 0777 [pid 20338] <... write resumed>) = -1 EFAULT (Bad address) [pid 20342] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20338] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20342] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20338] <... futex resumed>) = 0 [pid 20342] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20338] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20342] <... futex resumed>) = 1 [pid 20339] <... futex resumed>) = 0 [pid 20342] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20339] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20342] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20339] <... futex resumed>) = 0 [pid 20342] pipe2( [pid 20339] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20342] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20342] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20342] <... futex resumed>) = 1 [pid 20339] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20342] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20339] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20342] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20339] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20342] dup(4 [pid 20339] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 20342] <... dup resumed>) = 5 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20342] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20339] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20343 [pid 20342] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20339] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20342] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20339] <... futex resumed>) = 0 [pid 20342] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20339] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20343 attached [pid 20343] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20343] setpgid(0, 0) = 0 [pid 20343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20336] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 20343] <... openat resumed>) = 3 [pid 20336] exit_group(0 [pid 20343] write(3, "1000", 4 [pid 20338] <... futex resumed>) = ? [pid 20336] <... exit_group resumed>) = ? [pid 20343] <... write resumed>) = 4 [pid 20338] +++ exited with 0 +++ [pid 20343] close(3) = 0 [pid 20343] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20336] +++ exited with 0 +++ [pid 20343] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20336, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20343] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20343] <... mprotect resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20343] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 20343] <... clone resumed>, parent_tid=[20344], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20344 [pid 3606] close(3 [pid 20343] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3606] <... close resumed>) = 0 [pid 20343] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20344 attached , child_tidptr=0x555556ba76d0) = 20345 [pid 20344] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20344] mkdir("./file0", 0777./strace-static-x86_64: Process 20345 attached [pid 20341] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20340] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 20344] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20345] set_robust_list(0x555556ba76e0, 24 [pid 20344] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20341] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20340] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20344] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20343] <... futex resumed>) = 0 [pid 20341] <... futex resumed>) = 0 [pid 20340] <... futex resumed>) = 0 [pid 20345] <... set_robust_list resumed>) = 0 [pid 20344] pipe2( [pid 20343] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20341] write(5, NULL, 176 [pid 20340] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20345] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20344] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20343] <... futex resumed>) = 0 [pid 20341] <... write resumed>) = -1 EFAULT (Bad address) [pid 20345] <... prctl resumed>) = 0 [pid 20344] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20343] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20342] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20345] setpgid(0, 0 [pid 20344] <... futex resumed>) = 0 [pid 20343] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20342] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20341] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20345] <... setpgid resumed>) = 0 [pid 20344] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20343] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20342] <... futex resumed>) = 1 [pid 20341] <... futex resumed>) = 1 [pid 20340] <... futex resumed>) = 0 [pid 20339] <... futex resumed>) = 0 [pid 20345] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20343] <... futex resumed>) = 0 [pid 20342] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20341] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20340] exit_group(0 [pid 20339] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20345] <... openat resumed>) = 3 [pid 20344] dup(4 [pid 20343] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20342] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20341] <... futex resumed>) = ? [pid 20340] <... exit_group resumed>) = ? [pid 20339] <... futex resumed>) = 0 [pid 20345] write(3, "1000", 4 [pid 20344] <... dup resumed>) = 5 [pid 20342] write(5, NULL, 176 [pid 20341] +++ exited with 0 +++ [pid 20339] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20344] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20342] <... write resumed>) = -1 EFAULT (Bad address) [pid 20344] <... futex resumed>) = 1 [pid 20343] <... futex resumed>) = 0 [pid 20345] <... write resumed>) = 4 [pid 20342] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20340] +++ exited with 0 +++ [pid 20345] close(3 [pid 20344] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20343] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20342] <... futex resumed>) = 1 [pid 20339] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20340, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20345] <... close resumed>) = 0 [pid 20344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20343] <... futex resumed>) = 0 [pid 20342] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20339] exit_group(0 [pid 20345] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20344] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20343] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20342] <... futex resumed>) = ? [pid 20339] <... exit_group resumed>) = ? [pid 20345] <... futex resumed>) = 0 [pid 20342] +++ exited with 0 +++ [pid 20339] +++ exited with 0 +++ [pid 20345] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20339, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20345] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20345] <... mprotect resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20345] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] <... openat resumed>) = 3 [pid 3601] <... openat resumed>) = 3 [pid 20345] <... clone resumed>, parent_tid=[20346], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20346 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20345] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20345] <... futex resumed>) = 0 [pid 3604] close(3 [pid 3601] close(3 [pid 20345] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... close resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20346 attached [pid 20346] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20346] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20348 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20347 ./strace-static-x86_64: Process 20348 attached [pid 20346] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20346] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20345] <... futex resumed>) = 0 [pid 20345] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20345] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20347 attached [pid 20348] set_robust_list(0x555556ba76e0, 24 [pid 20346] <... futex resumed>) = 1 [pid 20348] <... set_robust_list resumed>) = 0 [pid 20346] pipe2( [pid 20348] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20347] set_robust_list(0x555556ba76e0, 24 [pid 20348] <... prctl resumed>) = 0 [pid 20347] <... set_robust_list resumed>) = 0 [pid 20348] setpgid(0, 0) = 0 [pid 20347] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20348] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20347] <... prctl resumed>) = 0 [pid 20347] setpgid(0, 0 [pid 20348] <... openat resumed>) = 3 [pid 20347] <... setpgid resumed>) = 0 [pid 20348] write(3, "1000", 4 [pid 20347] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20348] <... write resumed>) = 4 [pid 20347] <... openat resumed>) = 3 [pid 20346] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20348] close(3 [pid 20347] write(3, "1000", 4 [pid 20348] <... close resumed>) = 0 [pid 20347] <... write resumed>) = 4 [pid 20346] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20348] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20347] close(3 [pid 20346] <... futex resumed>) = 1 [pid 20345] <... futex resumed>) = 0 [pid 20348] <... futex resumed>) = 0 [pid 20347] <... close resumed>) = 0 [pid 20346] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20345] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20348] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20347] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20345] <... futex resumed>) = 0 [pid 20346] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20348] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20347] <... futex resumed>) = 0 [pid 20345] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20348] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20347] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20346] dup(4 [pid 20347] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20347] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20344] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20348] <... mprotect resumed>) = 0 [pid 20346] <... dup resumed>) = 5 [pid 20348] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20347] <... mprotect resumed>) = 0 [pid 20346] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20344] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20349 attached [pid 20347] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20346] <... futex resumed>) = 1 [pid 20345] <... futex resumed>) = 0 [pid 20344] <... futex resumed>) = 1 [pid 20343] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20350 attached [pid 20349] set_robust_list(0x7f61a3ef39e0, 24 [pid 20348] <... clone resumed>, parent_tid=[20349], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20349 [pid 20346] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20345] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20344] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20343] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20350] set_robust_list(0x7f61a3ef39e0, 24 [pid 20349] <... set_robust_list resumed>) = 0 [pid 20348] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20347] <... clone resumed>, parent_tid=[20350], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20350 [pid 20346] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20345] <... futex resumed>) = 0 [pid 20344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20343] <... futex resumed>) = 0 [pid 20350] <... set_robust_list resumed>) = 0 [pid 20349] mkdir("./file0", 0777 [pid 20348] <... futex resumed>) = 0 [pid 20347] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20346] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20345] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20344] write(5, NULL, 176 [pid 20343] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20350] mkdir("./file0", 0777 [pid 20349] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20348] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20347] <... futex resumed>) = 0 [pid 20344] <... write resumed>) = -1 EFAULT (Bad address) [pid 20347] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20344] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20343] <... futex resumed>) = 0 [pid 20349] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20344] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20343] exit_group(0 [pid 20350] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20350] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20350] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20347] <... futex resumed>) = 0 [pid 20350] pipe2( [pid 20347] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20350] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20347] <... futex resumed>) = 0 [pid 20350] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20347] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20350] <... futex resumed>) = 0 [pid 20347] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20350] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20347] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20343] <... exit_group resumed>) = ? [pid 20350] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20349] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20347] <... futex resumed>) = 0 [pid 20344] <... futex resumed>) = ? [pid 20350] dup(4 [pid 20349] <... futex resumed>) = 1 [pid 20348] <... futex resumed>) = 0 [pid 20347] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20346] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20350] <... dup resumed>) = 5 [pid 20349] pipe2( [pid 20348] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20346] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20344] +++ exited with 0 +++ [pid 20343] +++ exited with 0 +++ [pid 20350] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20349] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20348] <... futex resumed>) = 0 [pid 20346] <... futex resumed>) = 1 [pid 20345] <... futex resumed>) = 0 [pid 20350] <... futex resumed>) = 1 [pid 20349] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20348] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20347] <... futex resumed>) = 0 [pid 20346] write(5, NULL, 176 [pid 20345] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20343, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20350] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20349] <... futex resumed>) = 0 [pid 20348] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20347] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20346] <... write resumed>) = -1 EFAULT (Bad address) [pid 20345] <... futex resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20350] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20349] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20348] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20347] <... futex resumed>) = 0 [pid 20346] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20345] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... restart_syscall resumed>) = 0 [pid 20350] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20348] <... futex resumed>) = 0 [pid 20347] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20346] <... futex resumed>) = 0 [pid 20345] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20349] dup(4 [pid 20348] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20346] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20345] exit_group(0 [pid 20349] <... dup resumed>) = 5 [pid 20346] <... futex resumed>) = ? [pid 20345] <... exit_group resumed>) = ? [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20349] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20346] +++ exited with 0 +++ [pid 20345] +++ exited with 0 +++ [pid 3607] <... openat resumed>) = 3 [pid 20349] <... futex resumed>) = 1 [pid 20348] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20349] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20348] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20345, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20348] <... futex resumed>) = 0 [pid 3607] close(3 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20350] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20349] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20348] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 20350] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... restart_syscall resumed>) = 0 [pid 20350] <... futex resumed>) = 1 [pid 20347] <... futex resumed>) = 0 [pid 20350] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20347] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20351 [pid 20350] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20347] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 20351 attached [pid 20351] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20350] write(5, NULL, 176 [pid 20349] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20347] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... openat resumed>) = 3 [pid 20350] <... write resumed>) = -1 EFAULT (Bad address) [pid 20349] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20350] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20349] <... futex resumed>) = 1 [pid 20348] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20351] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20350] <... futex resumed>) = 1 [pid 20349] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20348] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20347] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20351] <... prctl resumed>) = 0 [pid 20350] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20348] <... futex resumed>) = 0 [pid 20347] exit_group(0 [pid 3606] <... close resumed>) = 0 [pid 20351] setpgid(0, 0 [pid 20350] <... futex resumed>) = ? [pid 20349] write(5, NULL, 176 [pid 20348] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20347] <... exit_group resumed>) = ? [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20351] <... setpgid resumed>) = 0 [pid 20350] +++ exited with 0 +++ [pid 20349] <... write resumed>) = -1 EFAULT (Bad address) [pid 20351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20349] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20351] <... openat resumed>) = 3 [pid 20349] <... futex resumed>) = 1 [pid 20348] <... futex resumed>) = 0 [pid 20347] +++ exited with 0 +++ [pid 20351] write(3, "1000", 4 [pid 20349] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20348] exit_group(0 [pid 20351] <... write resumed>) = 4 [pid 20349] <... futex resumed>) = ? [pid 20348] <... exit_group resumed>) = ? [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20352 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20347, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20351] close(3 [pid 20349] +++ exited with 0 +++ [pid 20348] +++ exited with 0 +++ [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20351] <... close resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20351] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20348, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20351] <... futex resumed>) = 0 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20351] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] <... restart_syscall resumed>) = 0 [pid 20351] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3604] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20352 attached [pid 20351] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20352] set_robust_list(0x555556ba76e0, 24 [pid 20351] <... mprotect resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20352] <... set_robust_list resumed>) = 0 [pid 20351] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] close(3 [pid 3601] <... openat resumed>) = 3 [pid 20352] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3604] <... close resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20352] <... prctl resumed>) = 0 [pid 20351] <... clone resumed>, parent_tid=[20353], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20353 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20352] setpgid(0, 0 [pid 20351] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 20352] <... setpgid resumed>) = 0 [pid 20351] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20354 [pid 3601] <... close resumed>) = 0 [pid 20352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20351] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20352] <... openat resumed>) = 3 [pid 20352] write(3, "1000", 4 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20355 [pid 20352] <... write resumed>) = 4 [pid 20352] close(3./strace-static-x86_64: Process 20353 attached ) = 0 [pid 20353] set_robust_list(0x7f61a3ef39e0, 24 [pid 20352] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20353] <... set_robust_list resumed>) = 0 [pid 20352] <... futex resumed>) = 0 [pid 20352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20353] mkdir("./file0", 0777 [pid 20352] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20353] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20352] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 20354 attached ) = 0 [pid 20354] set_robust_list(0x555556ba76e0, 24 [pid 20353] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20352] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20354] <... set_robust_list resumed>) = 0 [pid 20353] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20354] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20353] <... futex resumed>) = 1 [pid 20352] <... clone resumed>, parent_tid=[20356], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20356 [pid 20351] <... futex resumed>) = 0 [pid 20354] <... prctl resumed>) = 0 [pid 20353] pipe2( [pid 20352] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20351] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20354] setpgid(0, 0 [pid 20352] <... futex resumed>) = 0 [pid 20351] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20355 attached [pid 20354] <... setpgid resumed>) = 0 [pid 20353] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20352] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20351] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20355] set_robust_list(0x555556ba76e0, 24 [pid 20354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20353] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20351] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 20356 attached [pid 20354] <... openat resumed>) = 3 [pid 20351] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20356] set_robust_list(0x7f61a3ef39e0, 24 [pid 20354] write(3, "1000", 4 [pid 20351] <... futex resumed>) = 0 [pid 20356] <... set_robust_list resumed>) = 0 [pid 20354] <... write resumed>) = 4 [pid 20351] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20356] mkdir("./file0", 0777 [pid 20354] close(3 [pid 20356] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20354] <... close resumed>) = 0 [pid 20356] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20354] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20356] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20354] <... futex resumed>) = 0 [pid 20356] <... futex resumed>) = 1 [pid 20354] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20352] <... futex resumed>) = 0 [pid 20356] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20354] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20352] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20354] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20355] <... set_robust_list resumed>) = 0 [pid 20353] <... futex resumed>) = 1 [pid 20352] <... futex resumed>) = 0 [pid 20351] <... futex resumed>) = 0 [pid 20356] pipe2( [pid 20354] <... mprotect resumed>) = 0 [pid 20353] dup(4 [pid 20352] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20351] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=45000000} [pid 20355] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20356] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20354] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20353] <... dup resumed>) = 5 ./strace-static-x86_64: Process 20357 attached [pid 20356] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20355] <... prctl resumed>) = 0 [pid 20353] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20356] <... futex resumed>) = 1 [pid 20355] setpgid(0, 0 [pid 20354] <... clone resumed>, parent_tid=[20357], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20357 [pid 20353] <... futex resumed>) = 1 [pid 20352] <... futex resumed>) = 0 [pid 20351] <... futex resumed>) = 0 [pid 20356] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20355] <... setpgid resumed>) = 0 [pid 20354] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20353] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20352] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20351] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20355] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20354] <... futex resumed>) = 0 [pid 20353] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20352] <... futex resumed>) = 0 [pid 20351] <... futex resumed>) = 0 [pid 20356] dup(4 [pid 20355] <... openat resumed>) = 3 [pid 20354] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20353] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20352] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20351] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20356] <... dup resumed>) = 5 [pid 20355] write(3, "1000", 4 [pid 20356] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20352] <... futex resumed>) = 0 [pid 20356] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20355] <... write resumed>) = 4 [pid 20352] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20352] <... futex resumed>) = 0 [pid 20356] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20352] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20355] close(3 [pid 20357] set_robust_list(0x7f61a3ef39e0, 24 [pid 20355] <... close resumed>) = 0 [pid 20357] <... set_robust_list resumed>) = 0 [pid 20355] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20355] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20357] mkdir("./file0", 0777 [pid 20356] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20355] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20357] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20356] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20357] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20356] <... futex resumed>) = 1 [pid 20352] <... futex resumed>) = 0 [pid 20357] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20356] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20352] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20357] <... futex resumed>) = 1 [pid 20356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20354] <... futex resumed>) = 0 [pid 20352] <... futex resumed>) = 0 [pid 20357] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20356] write(5, NULL, 176 [pid 20354] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20352] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20357] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20356] <... write resumed>) = -1 EFAULT (Bad address) [pid 20354] <... futex resumed>) = 0 [pid 20357] pipe2( [pid 20356] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20354] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20357] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20356] <... futex resumed>) = 1 [pid 20352] <... futex resumed>) = 0 [pid 20357] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20356] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20352] exit_group(0 [pid 20357] <... futex resumed>) = 1 [pid 20356] <... futex resumed>) = ? [pid 20354] <... futex resumed>) = 0 [pid 20352] <... exit_group resumed>) = ? [pid 20357] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20356] +++ exited with 0 +++ [pid 20354] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20352] +++ exited with 0 +++ [pid 20357] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20354] <... futex resumed>) = 0 [pid 20357] dup(4 [pid 20354] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20357] <... dup resumed>) = 5 [pid 20357] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20354] <... futex resumed>) = 0 [pid 20357] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20354] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20357] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20354] <... futex resumed>) = 0 [pid 20357] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20354] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20355] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20355] <... mprotect resumed>) = 0 [pid 20355] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20353] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20355] <... clone resumed>, parent_tid=[20358], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20358 [pid 20355] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20355] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20358 attached [pid 20353] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20353] <... futex resumed>) = 1 [pid 20351] <... futex resumed>) = 0 [pid 20353] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20351] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 20353] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20351] <... futex resumed>) = 0 [pid 20353] write(5, NULL, 176 [pid 20351] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20353] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20353] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 20358] set_robust_list(0x7f61a3ef39e0, 24 [pid 20357] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20353] <... futex resumed>) = 1 [pid 20351] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20353] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20351] exit_group(0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20353] <... futex resumed>) = ? [pid 20351] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20359 attached [pid 20353] +++ exited with 0 +++ [pid 20351] +++ exited with 0 +++ [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20359 [pid 20357] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20351, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20357] <... futex resumed>) = 1 [pid 20354] <... futex resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20359] set_robust_list(0x555556ba76e0, 24 [pid 20358] <... set_robust_list resumed>) = 0 [pid 20357] write(5, NULL, 176 [pid 20354] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20359] <... set_robust_list resumed>) = 0 [pid 20358] mkdir("./file0", 0777 [pid 20357] <... write resumed>) = -1 EFAULT (Bad address) [pid 20354] <... futex resumed>) = 0 [pid 20359] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20358] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20357] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20354] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20359] <... prctl resumed>) = 0 [pid 20358] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20357] <... futex resumed>) = 0 [pid 20354] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20359] setpgid(0, 0 [pid 20358] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20357] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20354] exit_group(0 [pid 3607] <... openat resumed>) = 3 [pid 20359] <... setpgid resumed>) = 0 [pid 20354] <... exit_group resumed>) = ? [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20359] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20358] <... futex resumed>) = 1 [pid 20357] <... futex resumed>) = ? [pid 20355] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20359] <... openat resumed>) = 3 [pid 20355] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 20359] write(3, "1000", 4 [pid 20358] pipe2( [pid 20357] +++ exited with 0 +++ [pid 20355] <... futex resumed>) = 0 [pid 20354] +++ exited with 0 +++ [pid 3607] <... close resumed>) = 0 [pid 20359] <... write resumed>) = 4 [pid 20358] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20355] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20354, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20359] close(3 [pid 20358] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20359] <... close resumed>) = 0 [pid 20358] <... futex resumed>) = 0 [pid 20355] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20360 [pid 20359] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20358] dup(4 [pid 20355] <... futex resumed>) = 0 [pid 20359] <... futex resumed>) = 0 [pid 20358] <... dup resumed>) = 5 [pid 20355] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20360 attached [pid 20359] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20358] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20360] set_robust_list(0x555556ba76e0, 24 [pid 20359] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20358] <... futex resumed>) = 0 [pid 20355] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20360] <... set_robust_list resumed>) = 0 [pid 20359] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20358] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20355] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20360] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20359] <... mprotect resumed>) = 0 [pid 20355] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20359] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3 [pid 20359] <... clone resumed>, parent_tid=[20361], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20361 [pid 3604] <... close resumed>) = 0 [pid 20359] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20360] <... prctl resumed>) = 0 [pid 20359] <... futex resumed>) = 0 [pid 20359] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20362 ./strace-static-x86_64: Process 20361 attached [pid 20361] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20361] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20361] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20361] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20359] <... futex resumed>) = 0 [pid 20361] pipe2( [pid 20360] setpgid(0, 0 [pid 20359] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20361] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20360] <... setpgid resumed>) = 0 [pid 20359] <... futex resumed>) = 0 [pid 20361] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20359] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20361] <... futex resumed>) = 0 [pid 20359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20361] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20359] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20359] <... futex resumed>) = 0 [pid 20361] dup(4 [pid 20359] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20361] <... dup resumed>) = 5 [pid 20360] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20361] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20360] <... openat resumed>) = 3 [pid 20361] <... futex resumed>) = 1 [pid 20360] write(3, "1000", 4 [pid 20359] <... futex resumed>) = 0 [pid 20361] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20360] <... write resumed>) = 4 [pid 20359] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20362 attached [pid 20361] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20360] close(3 [pid 20359] <... futex resumed>) = 0 [pid 20362] set_robust_list(0x555556ba76e0, 24 [pid 20361] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20360] <... close resumed>) = 0 [pid 20359] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20358] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20360] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20358] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20360] <... futex resumed>) = 0 [pid 20358] <... futex resumed>) = 1 [pid 20360] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20358] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20355] <... futex resumed>) = 0 [pid 20360] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20355] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20360] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20355] <... futex resumed>) = 1 [pid 20358] <... futex resumed>) = 0 [pid 20360] <... mprotect resumed>) = 0 [pid 20355] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20358] write(5, NULL, 176 [pid 20360] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20358] <... write resumed>) = -1 EFAULT (Bad address) [pid 20362] <... set_robust_list resumed>) = 0 [pid 20358] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20360] <... clone resumed>, parent_tid=[20363], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20363 [pid 20360] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20358] <... futex resumed>) = 1 [pid 20355] <... futex resumed>) = 0 [pid 20360] <... futex resumed>) = 0 [pid 20358] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20355] exit_group(0 [pid 20360] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20355] <... exit_group resumed>) = ? [pid 20358] <... futex resumed>) = ? ./strace-static-x86_64: Process 20363 attached [pid 20363] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20363] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20363] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20363] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20358] +++ exited with 0 +++ [pid 20355] +++ exited with 0 +++ [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20355, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20360] <... futex resumed>) = 0 [pid 20360] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20360] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3 [pid 20363] <... futex resumed>) = 1 [pid 20363] pipe2( [pid 3601] <... close resumed>) = 0 [pid 20363] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20362] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20363] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20360] <... futex resumed>) = 0 [pid 20363] dup(4 [pid 20360] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20363] <... dup resumed>) = 5 [pid 20360] <... futex resumed>) = 0 [pid 20363] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20360] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20364 [pid 20363] <... futex resumed>) = 0 [pid 20362] <... prctl resumed>) = 0 [pid 20360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20363] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20362] setpgid(0, 0 [pid 20361] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20360] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20363] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20362] <... setpgid resumed>) = 0 [pid 20361] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20360] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20364 attached [pid 20363] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20360] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20359] <... futex resumed>) = 0 [pid 20361] <... futex resumed>) = 1 [pid 20364] set_robust_list(0x555556ba76e0, 24 [pid 20362] <... openat resumed>) = 3 [pid 20361] write(5, NULL, 176 [pid 20359] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20364] <... set_robust_list resumed>) = 0 [pid 20362] write(3, "1000", 4 [pid 20361] <... write resumed>) = -1 EFAULT (Bad address) [pid 20359] <... futex resumed>) = 0 [pid 20364] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20362] <... write resumed>) = 4 [pid 20361] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20359] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20364] <... prctl resumed>) = 0 [pid 20362] close(3 [pid 20361] <... futex resumed>) = 0 [pid 20359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20364] setpgid(0, 0 [pid 20362] <... close resumed>) = 0 [pid 20361] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20359] exit_group(0 [pid 20364] <... setpgid resumed>) = 0 [pid 20362] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20361] <... futex resumed>) = ? [pid 20359] <... exit_group resumed>) = ? [pid 20364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20362] <... futex resumed>) = 0 [pid 20361] +++ exited with 0 +++ [pid 20359] +++ exited with 0 +++ [pid 20364] <... openat resumed>) = 3 [pid 20362] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20364] write(3, "1000", 4 [pid 20362] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20364] <... write resumed>) = 4 [pid 20362] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20364] close(3 [pid 20362] <... mprotect resumed>) = 0 [pid 20364] <... close resumed>) = 0 [pid 20362] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20364] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20362] <... clone resumed>, parent_tid=[20365], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20365 [pid 20364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20362] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20359, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 20365 attached [pid 20364] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20363] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20362] <... futex resumed>) = 0 [pid 20365] set_robust_list(0x7f61a3ef39e0, 24 [pid 20364] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20363] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20362] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20365] <... set_robust_list resumed>) = 0 [pid 20364] <... mprotect resumed>) = 0 [pid 20363] <... futex resumed>) = 1 [pid 20360] <... futex resumed>) = 0 [pid 20364] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20363] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20365] mkdir("./file0", 0777 [pid 20360] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20365] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20363] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20360] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20364] <... clone resumed>, parent_tid=[20366], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20366 [pid 20363] write(5, NULL, 176 [pid 20360] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20365] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20365] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20364] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20363] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20365] <... futex resumed>) = 1 [pid 20364] <... futex resumed>) = 0 [pid 20363] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20362] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20365] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20364] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20363] <... futex resumed>) = 1 [pid 20362] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20360] <... futex resumed>) = 0 [pid 20362] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20362] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20366 attached [pid 20366] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20366] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20366] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20366] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20364] <... futex resumed>) = 0 [pid 20364] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20364] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20366] <... futex resumed>) = 1 [pid 20366] pipe2([3, 4], 0) = 0 [pid 20366] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20364] <... futex resumed>) = 0 [pid 20364] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20366] <... futex resumed>) = 1 [pid 20364] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20366] dup(4) = 5 [pid 20366] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20364] <... futex resumed>) = 0 [pid 20366] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20364] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20364] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20363] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20360] exit_group(0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20365] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20363] <... futex resumed>) = ? [pid 20360] <... exit_group resumed>) = ? [pid 20365] pipe2( [pid 20363] +++ exited with 0 +++ [pid 20360] +++ exited with 0 +++ [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20367 ./strace-static-x86_64: Process 20367 attached [pid 20365] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20360, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20367] set_robust_list(0x555556ba76e0, 24 [pid 20365] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20367] <... set_robust_list resumed>) = 0 [pid 20365] <... futex resumed>) = 1 [pid 20362] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20367] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20365] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20362] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20367] <... prctl resumed>) = 0 [pid 20365] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20362] <... futex resumed>) = 0 [pid 20367] setpgid(0, 0 [pid 20365] dup(4 [pid 20362] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20367] <... setpgid resumed>) = 0 [pid 20365] <... dup resumed>) = 5 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20367] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20365] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20367] <... openat resumed>) = 3 [pid 20365] <... futex resumed>) = 1 [pid 20362] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20367] write(3, "1000", 4 [pid 20365] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20362] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20367] <... write resumed>) = 4 [pid 20365] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20362] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20367] close(3 [pid 20365] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20362] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] close(3 [pid 20367] <... close resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20367] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20367] <... futex resumed>) = 0 [pid 20367] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20367] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20367] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20368 ./strace-static-x86_64: Process 20369 attached ./strace-static-x86_64: Process 20368 attached [pid 20367] <... clone resumed>, parent_tid=[20369], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20369 [pid 20366] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20369] set_robust_list(0x7f61a3ef39e0, 24 [pid 20368] set_robust_list(0x555556ba76e0, 24 [pid 20367] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20366] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20369] <... set_robust_list resumed>) = 0 [pid 20368] <... set_robust_list resumed>) = 0 [pid 20367] <... futex resumed>) = 0 [pid 20366] <... futex resumed>) = 1 [pid 20364] <... futex resumed>) = 0 [pid 20369] mkdir("./file0", 0777 [pid 20368] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20367] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20366] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20364] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20369] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20368] <... prctl resumed>) = 0 [pid 20366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20365] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20364] <... futex resumed>) = 0 [pid 20369] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20368] setpgid(0, 0 [pid 20366] write(5, NULL, 176 [pid 20365] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20364] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20369] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20368] <... setpgid resumed>) = 0 [pid 20366] <... write resumed>) = -1 EFAULT (Bad address) [pid 20365] <... futex resumed>) = 1 [pid 20362] <... futex resumed>) = 0 [pid 20369] <... futex resumed>) = 1 [pid 20368] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20367] <... futex resumed>) = 0 [pid 20366] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20365] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20362] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20369] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20367] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20366] <... futex resumed>) = 1 [pid 20365] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20364] <... futex resumed>) = 0 [pid 20362] <... futex resumed>) = 0 [pid 20369] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20368] <... openat resumed>) = 3 [pid 20367] <... futex resumed>) = 0 [pid 20366] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20365] write(5, NULL, 176 [pid 20364] exit_group(0 [pid 20362] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20369] pipe2( [pid 20368] write(3, "1000", 4 [pid 20367] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20366] <... futex resumed>) = ? [pid 20365] <... write resumed>) = -1 EFAULT (Bad address) [pid 20364] <... exit_group resumed>) = ? [pid 20369] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20368] <... write resumed>) = 4 [pid 20366] +++ exited with 0 +++ [pid 20365] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20369] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20368] close(3 [pid 20365] <... futex resumed>) = 1 [pid 20364] +++ exited with 0 +++ [pid 20362] <... futex resumed>) = 0 [pid 20369] <... futex resumed>) = 1 [pid 20368] <... close resumed>) = 0 [pid 20367] <... futex resumed>) = 0 [pid 20365] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20362] exit_group(0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20364, si_uid=0, si_status=0, si_utime=1, si_stime=0} --- [pid 20369] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20368] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20367] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20365] <... futex resumed>) = ? [pid 20362] <... exit_group resumed>) = ? [pid 20369] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20368] <... futex resumed>) = 0 [pid 20367] <... futex resumed>) = 0 [pid 20369] dup(4 [pid 20368] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20367] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20365] +++ exited with 0 +++ [pid 20369] <... dup resumed>) = 5 [pid 20368] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20369] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20368] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20362] +++ exited with 0 +++ [pid 20369] <... futex resumed>) = 1 [pid 20368] <... mprotect resumed>) = 0 [pid 20367] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20362, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20369] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20368] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20367] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20369] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20367] <... futex resumed>) = 0 [pid 20369] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20368] <... clone resumed>, parent_tid=[20370], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20370 [pid 20367] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 20370 attached [pid 20370] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20368] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20368] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20368] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... openat resumed>) = 3 [pid 20370] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20370] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20370] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20369] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20368] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20370] pipe2( [pid 20369] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20368] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 3601] close(3 [pid 20370] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20369] <... futex resumed>) = 1 [pid 20368] <... futex resumed>) = 0 [pid 20367] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20370] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20369] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20368] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20367] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20370] <... futex resumed>) = 0 [pid 20369] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20368] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20367] <... futex resumed>) = 0 [pid 20369] write(5, NULL, 176 [pid 20367] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20372 attached ./strace-static-x86_64: Process 20371 attached [pid 20370] dup(4 [pid 20369] <... write resumed>) = -1 EFAULT (Bad address) [pid 20368] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20371 [pid 20370] <... dup resumed>) = 5 [pid 20369] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20368] <... futex resumed>) = 0 [pid 20370] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20369] <... futex resumed>) = 1 [pid 20368] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20367] <... futex resumed>) = 0 [pid 20372] set_robust_list(0x555556ba76e0, 24 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20372 [pid 20371] set_robust_list(0x555556ba76e0, 24 [pid 20370] <... futex resumed>) = 0 [pid 20369] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20368] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20367] exit_group(0 [pid 20372] <... set_robust_list resumed>) = 0 [pid 20371] <... set_robust_list resumed>) = 0 [pid 20370] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20369] <... futex resumed>) = ? [pid 20368] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20367] <... exit_group resumed>) = ? [pid 20372] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20371] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20370] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20369] +++ exited with 0 +++ [pid 20368] <... futex resumed>) = 0 [pid 20372] <... prctl resumed>) = 0 [pid 20371] <... prctl resumed>) = 0 [pid 20370] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20368] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20367] +++ exited with 0 +++ [pid 20372] setpgid(0, 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20367, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20371] setpgid(0, 0) = 0 [pid 20371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20371] <... openat resumed>) = 3 [pid 20371] write(3, "1000", 4 [pid 3606] <... openat resumed>) = 3 [pid 20371] <... write resumed>) = 4 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20371] close(3) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20371] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 20371] <... futex resumed>) = 0 [pid 20372] <... setpgid resumed>) = 0 [pid 20371] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] <... close resumed>) = 0 [pid 20372] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20370] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20372] <... openat resumed>) = 3 [pid 20370] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20372] write(3, "1000", 4 [pid 20370] <... futex resumed>) = 1 [pid 20368] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20373 [pid 20372] <... write resumed>) = 4 [pid 20370] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20368] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20372] close(3 [pid 20370] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20368] <... futex resumed>) = 0 [pid 20372] <... close resumed>) = 0 [pid 20370] write(5, NULL, 176 [pid 20368] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20372] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20370] <... write resumed>) = -1 EFAULT (Bad address) [pid 20372] <... futex resumed>) = 0 [pid 20370] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20372] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20370] <... futex resumed>) = 1 [pid 20368] <... futex resumed>) = 0 [pid 20372] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20370] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20368] exit_group(0 [pid 20372] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20370] <... futex resumed>) = ? [pid 20368] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20373 attached [pid 20372] <... mprotect resumed>) = 0 [pid 20371] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20370] +++ exited with 0 +++ [pid 20368] +++ exited with 0 +++ [pid 20372] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20368, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20372] <... clone resumed>, parent_tid=[20374], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20374 [pid 20372] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20372] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20372] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 20371] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] close(3 [pid 20371] <... mprotect resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20373] set_robust_list(0x555556ba76e0, 24 [pid 20371] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20375 [pid 20373] <... set_robust_list resumed>) = 0 [pid 20371] <... clone resumed>, parent_tid=[20376], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20376 [pid 20371] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20373] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20371] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20374 attached [pid 20374] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20374] mkdir("./file0", 0777 [pid 20373] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 20376 attached [pid 20374] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20376] set_robust_list(0x7f61a3ef39e0, 24 [pid 20374] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20376] <... set_robust_list resumed>) = 0 [pid 20374] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20376] mkdir("./file0", 0777 [pid 20374] <... futex resumed>) = 1 [pid 20372] <... futex resumed>) = 0 [pid 20376] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20374] pipe2( [pid 20372] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20376] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20374] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20372] <... futex resumed>) = 0 [pid 20376] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20374] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20372] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20375 attached [pid 20376] <... futex resumed>) = 1 [pid 20374] <... futex resumed>) = 0 [pid 20373] setpgid(0, 0 [pid 20372] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20371] <... futex resumed>) = 0 [pid 20376] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20374] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20373] <... setpgid resumed>) = 0 [pid 20372] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20371] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20375] set_robust_list(0x555556ba76e0, 24 [pid 20376] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20373] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20372] <... futex resumed>) = 0 [pid 20371] <... futex resumed>) = 0 [pid 20376] pipe2( [pid 20374] dup(4 [pid 20372] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20376] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20375] <... set_robust_list resumed>) = 0 [pid 20374] <... dup resumed>) = 5 [pid 20373] <... openat resumed>) = 3 [pid 20371] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20376] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20375] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20374] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20373] write(3, "1000", 4 [pid 20371] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20376] <... futex resumed>) = 0 [pid 20375] <... prctl resumed>) = 0 [pid 20374] <... futex resumed>) = 1 [pid 20373] <... write resumed>) = 4 [pid 20372] <... futex resumed>) = 0 [pid 20371] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20376] dup(4 [pid 20375] setpgid(0, 0 [pid 20374] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20373] close(3 [pid 20372] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20371] <... futex resumed>) = 0 [pid 20376] <... dup resumed>) = 5 [pid 20375] <... setpgid resumed>) = 0 [pid 20374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20373] <... close resumed>) = 0 [pid 20372] <... futex resumed>) = 0 [pid 20371] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20376] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20374] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20373] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20372] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20371] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20376] <... futex resumed>) = 0 [pid 20375] <... openat resumed>) = 3 [pid 20373] <... futex resumed>) = 0 [pid 20371] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20376] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20375] write(3, "1000", 4 [pid 20373] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20371] <... futex resumed>) = 0 [pid 20375] <... write resumed>) = 4 [pid 20373] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20371] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20375] close(3 [pid 20373] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20375] <... close resumed>) = 0 [pid 20373] <... mprotect resumed>) = 0 [pid 20375] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20373] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20375] <... futex resumed>) = 0 [pid 20375] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20373] <... clone resumed>, parent_tid=[20377], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20377 [pid 20375] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20373] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20375] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20374] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20373] <... futex resumed>) = 0 [pid 20375] <... mprotect resumed>) = 0 [pid 20373] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20374] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20376] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20375] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20376] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20374] <... futex resumed>) = 1 [pid 20372] <... futex resumed>) = 0 [pid 20376] <... futex resumed>) = 1 [pid 20375] <... clone resumed>, parent_tid=[20378], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20378 [pid 20371] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20378 attached ./strace-static-x86_64: Process 20377 attached [pid 20376] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20375] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20374] write(5, NULL, 176 [pid 20372] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20371] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20378] set_robust_list(0x7f61a3ef39e0, 24 [pid 20376] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20375] <... futex resumed>) = 0 [pid 20374] <... write resumed>) = -1 EFAULT (Bad address) [pid 20377] set_robust_list(0x7f61a3ef39e0, 24 [pid 20372] <... futex resumed>) = 0 [pid 20371] <... futex resumed>) = 0 [pid 20378] <... set_robust_list resumed>) = 0 [pid 20377] <... set_robust_list resumed>) = 0 [pid 20376] write(5, NULL, 176 [pid 20375] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20374] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20372] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20371] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20378] mkdir("./file0", 0777 [pid 20377] mkdir("./file0", 0777 [pid 20376] <... write resumed>) = -1 EFAULT (Bad address) [pid 20374] <... futex resumed>) = 0 [pid 20372] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20376] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20374] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20378] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20377] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20376] <... futex resumed>) = 1 [pid 20372] exit_group(0 [pid 20371] <... futex resumed>) = 0 [pid 20371] exit_group(0 [pid 20376] exit_group(0 [pid 20378] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20377] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20376] +++ exited with 0 +++ [pid 20374] <... futex resumed>) = ? [pid 20372] <... exit_group resumed>) = ? [pid 20371] <... exit_group resumed>) = ? [pid 20378] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20374] +++ exited with 0 +++ [pid 20372] +++ exited with 0 +++ [pid 20377] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20371] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20371, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20378] <... futex resumed>) = 1 [pid 20377] <... futex resumed>) = 1 [pid 20375] <... futex resumed>) = 0 [pid 20373] <... futex resumed>) = 0 [pid 20375] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20373] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20372, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20378] pipe2( [pid 20377] pipe2( [pid 20375] <... futex resumed>) = 0 [pid 20373] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20378] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20377] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20375] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20373] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20378] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20377] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20375] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] <... openat resumed>) = 3 [pid 20378] <... futex resumed>) = 0 [pid 20377] <... futex resumed>) = 0 [pid 20375] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20373] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20378] dup(4 [pid 20377] dup(4 [pid 20375] <... futex resumed>) = 0 [pid 20373] <... futex resumed>) = 0 [pid 20378] <... dup resumed>) = 5 [pid 20377] <... dup resumed>) = 5 [pid 20375] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20373] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20378] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20377] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20375] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] close(3 [pid 20378] <... futex resumed>) = 0 [pid 20377] <... futex resumed>) = 0 [pid 20375] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20373] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20378] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20375] <... futex resumed>) = 0 [pid 20373] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3601] <... close resumed>) = 0 [pid 20377] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20375] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20373] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20379 ./strace-static-x86_64: Process 20379 attached [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20380 [pid 20379] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20379] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20379] setpgid(0, 0) = 0 [pid 20379] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20379] write(3, "1000", 4) = 4 [pid 20379] close(3) = 0 [pid 20379] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20379] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20379] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20379] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20381], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20381 [pid 20379] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20378] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20379] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20380 attached ./strace-static-x86_64: Process 20381 attached [pid 20379] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20378] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20377] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20378] <... futex resumed>) = 1 [pid 20377] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20375] <... futex resumed>) = 0 [pid 20380] set_robust_list(0x555556ba76e0, 24 [pid 20381] set_robust_list(0x7f61a3ef39e0, 24 [pid 20380] <... set_robust_list resumed>) = 0 [pid 20378] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20377] <... futex resumed>) = 1 [pid 20375] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20373] <... futex resumed>) = 0 [pid 20378] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20377] write(5, NULL, 176 [pid 20380] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20375] <... futex resumed>) = 0 [pid 20381] <... set_robust_list resumed>) = 0 [pid 20373] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20381] mkdir("./file0", 0777 [pid 20380] <... prctl resumed>) = 0 [pid 20378] write(5, NULL, 176 [pid 20377] <... write resumed>) = -1 EFAULT (Bad address) [pid 20375] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20373] <... futex resumed>) = 0 [pid 20381] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20380] setpgid(0, 0 [pid 20378] <... write resumed>) = -1 EFAULT (Bad address) [pid 20377] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20373] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20381] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20380] <... setpgid resumed>) = 0 [pid 20378] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20377] <... futex resumed>) = 0 [pid 20373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20381] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20380] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20378] <... futex resumed>) = 1 [pid 20377] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20375] <... futex resumed>) = 0 [pid 20373] exit_group(0 [pid 20381] <... futex resumed>) = 1 [pid 20380] <... openat resumed>) = 3 [pid 20379] <... futex resumed>) = 0 [pid 20378] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20377] <... futex resumed>) = ? [pid 20375] exit_group(0 [pid 20373] <... exit_group resumed>) = ? [pid 20381] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20380] write(3, "1000", 4 [pid 20379] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20378] <... futex resumed>) = ? [pid 20377] +++ exited with 0 +++ [pid 20375] <... exit_group resumed>) = ? [pid 20381] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20380] <... write resumed>) = 4 [pid 20379] <... futex resumed>) = 0 [pid 20378] +++ exited with 0 +++ [pid 20373] +++ exited with 0 +++ [pid 20381] pipe2( [pid 20380] close(3 [pid 20379] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20375] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20373, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20381] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20380] <... close resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20375, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20381] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20380] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20381] <... futex resumed>) = 1 [pid 20380] <... futex resumed>) = 0 [pid 20379] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20381] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20380] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20379] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20381] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20380] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20379] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20381] dup(4 [pid 20380] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20381] <... dup resumed>) = 5 [pid 20380] <... mprotect resumed>) = 0 [pid 20381] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20380] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20381] <... futex resumed>) = 1 [pid 20379] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20381] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20380] <... clone resumed>, parent_tid=[20382], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20382 [pid 20379] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20381] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20380] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20379] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... openat resumed>) = 3 [pid 20381] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20380] <... futex resumed>) = 0 [pid 20379] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] close(3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20380] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] <... close resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20382 attached [pid 20382] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20382] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20382] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20382] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20382] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20380] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20382] <... futex resumed>) = 0 [pid 20380] <... futex resumed>) = 1 [pid 20382] pipe2( [pid 20380] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] close(3 [pid 20382] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20382] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20382] <... futex resumed>) = 1 [pid 20380] <... futex resumed>) = 0 [pid 20382] dup(4 [pid 20380] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20382] <... dup resumed>) = 5 [pid 20380] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20383 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20382] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20380] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20382] <... futex resumed>) = 0 [pid 20380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20382] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20380] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20384 [pid 20382] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20380] <... futex resumed>) = 0 [pid 20382] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20380] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20384 attached ./strace-static-x86_64: Process 20383 attached [pid 20384] set_robust_list(0x555556ba76e0, 24 [pid 20383] set_robust_list(0x555556ba76e0, 24 [pid 20381] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20384] <... set_robust_list resumed>) = 0 [pid 20383] <... set_robust_list resumed>) = 0 [pid 20381] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20384] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20383] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20384] <... prctl resumed>) = 0 [pid 20381] <... futex resumed>) = 1 [pid 20379] <... futex resumed>) = 0 [pid 20384] setpgid(0, 0 [pid 20383] <... prctl resumed>) = 0 [pid 20381] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20379] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20384] <... setpgid resumed>) = 0 [pid 20383] setpgid(0, 0 [pid 20381] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20379] <... futex resumed>) = 0 [pid 20384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20383] <... setpgid resumed>) = 0 [pid 20382] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20381] write(5, NULL, 176 [pid 20379] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20384] <... openat resumed>) = 3 [pid 20383] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20382] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20381] <... write resumed>) = -1 EFAULT (Bad address) [pid 20384] write(3, "1000", 4 [pid 20383] <... openat resumed>) = 3 [pid 20382] <... futex resumed>) = 1 [pid 20381] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20380] <... futex resumed>) = 0 [pid 20384] <... write resumed>) = 4 [pid 20383] write(3, "1000", 4 [pid 20382] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20381] <... futex resumed>) = 1 [pid 20380] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20379] <... futex resumed>) = 0 [pid 20384] close(3 [pid 20383] <... write resumed>) = 4 [pid 20382] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20381] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20380] <... futex resumed>) = 0 [pid 20379] exit_group(0 [pid 20384] <... close resumed>) = 0 [pid 20383] close(3 [pid 20382] write(5, NULL, 176 [pid 20381] <... futex resumed>) = ? [pid 20380] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20379] <... exit_group resumed>) = ? [pid 20384] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20383] <... close resumed>) = 0 [pid 20382] <... write resumed>) = -1 EFAULT (Bad address) [pid 20381] +++ exited with 0 +++ [pid 20384] <... futex resumed>) = 0 [pid 20383] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20382] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20379] +++ exited with 0 +++ [pid 20384] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20383] <... futex resumed>) = 0 [pid 20382] <... futex resumed>) = 1 [pid 20380] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20379, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20384] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20383] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20382] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20380] exit_group(0 [pid 20384] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20383] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20382] <... futex resumed>) = ? [pid 20380] <... exit_group resumed>) = ? [pid 20384] <... mprotect resumed>) = 0 [pid 20383] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20382] +++ exited with 0 +++ [pid 20384] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20383] <... mprotect resumed>) = 0 [pid 20380] +++ exited with 0 +++ [pid 20384] <... clone resumed>, parent_tid=[20385], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20385 [pid 20383] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20380, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20384] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 20385 attached [pid 20384] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3601] <... openat resumed>) = 3 [pid 20384] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20383] <... clone resumed>, parent_tid=[20386], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20386 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20383] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20383] <... futex resumed>) = 0 [pid 3604] close(3 [pid 3601] close(3./strace-static-x86_64: Process 20386 attached [pid 20385] set_robust_list(0x7f61a3ef39e0, 24 [pid 20383] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... close resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20386] set_robust_list(0x7f61a3ef39e0, 24 [pid 20385] <... set_robust_list resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20386] <... set_robust_list resumed>) = 0 [pid 20385] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20386] mkdir("./file0", 0777./strace-static-x86_64: Process 20388 attached ./strace-static-x86_64: Process 20387 attached ) = -1 EEXIST (File exists) [pid 20385] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20387 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20388 [pid 20388] set_robust_list(0x555556ba76e0, 24 [pid 20387] set_robust_list(0x555556ba76e0, 24 [pid 20386] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20385] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20388] <... set_robust_list resumed>) = 0 [pid 20387] <... set_robust_list resumed>) = 0 [pid 20386] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20385] <... futex resumed>) = 1 [pid 20384] <... futex resumed>) = 0 [pid 20388] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20387] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20386] <... futex resumed>) = 1 [pid 20385] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20384] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20383] <... futex resumed>) = 0 [pid 20388] <... prctl resumed>) = 0 [pid 20387] <... prctl resumed>) = 0 [pid 20386] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20384] <... futex resumed>) = 0 [pid 20383] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20388] setpgid(0, 0 [pid 20387] setpgid(0, 0 [pid 20386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20385] pipe2( [pid 20384] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20383] <... futex resumed>) = 0 [pid 20388] <... setpgid resumed>) = 0 [pid 20387] <... setpgid resumed>) = 0 [pid 20386] pipe2( [pid 20385] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20383] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20387] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20386] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20385] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20388] <... openat resumed>) = 3 [pid 20387] <... openat resumed>) = 3 [pid 20386] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20385] <... futex resumed>) = 1 [pid 20384] <... futex resumed>) = 0 [pid 20388] write(3, "1000", 4 [pid 20387] write(3, "1000", 4 [pid 20386] <... futex resumed>) = 1 [pid 20385] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20384] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20383] <... futex resumed>) = 0 [pid 20388] <... write resumed>) = 4 [pid 20387] <... write resumed>) = 4 [pid 20386] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20384] <... futex resumed>) = 0 [pid 20383] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20388] close(3 [pid 20387] close(3 [pid 20386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20385] dup(4 [pid 20384] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20383] <... futex resumed>) = 0 [pid 20388] <... close resumed>) = 0 [pid 20387] <... close resumed>) = 0 [pid 20386] dup(4 [pid 20385] <... dup resumed>) = 5 [pid 20383] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20388] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20387] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20386] <... dup resumed>) = 5 [pid 20385] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20388] <... futex resumed>) = 0 [pid 20387] <... futex resumed>) = 0 [pid 20386] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20385] <... futex resumed>) = 1 [pid 20384] <... futex resumed>) = 0 [pid 20388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20387] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20386] <... futex resumed>) = 1 [pid 20385] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20384] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20383] <... futex resumed>) = 0 [pid 20388] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20387] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20386] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20384] <... futex resumed>) = 0 [pid 20383] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20388] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20387] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20385] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20384] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20383] <... futex resumed>) = 0 [pid 20388] <... mprotect resumed>) = 0 [pid 20387] <... mprotect resumed>) = 0 [pid 20386] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20383] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20388] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20387] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20389 attached [pid 20388] <... clone resumed>, parent_tid=[20389], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20389 ./strace-static-x86_64: Process 20390 attached [pid 20390] set_robust_list(0x7f61a3ef39e0, 24 [pid 20389] set_robust_list(0x7f61a3ef39e0, 24 [pid 20388] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20387] <... clone resumed>, parent_tid=[20390], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20390 [pid 20386] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20388] <... futex resumed>) = 0 [pid 20387] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20386] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20388] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20387] <... futex resumed>) = 0 [pid 20386] <... futex resumed>) = 1 [pid 20385] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20383] <... futex resumed>) = 0 [pid 20390] <... set_robust_list resumed>) = 0 [pid 20387] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20386] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20385] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20383] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20389] <... set_robust_list resumed>) = 0 [pid 20386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20385] <... futex resumed>) = 1 [pid 20384] <... futex resumed>) = 0 [pid 20383] <... futex resumed>) = 0 [pid 20390] mkdir("./file0", 0777 [pid 20386] write(5, NULL, 176 [pid 20385] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20384] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20383] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20389] mkdir("./file0", 0777 [pid 20386] <... write resumed>) = -1 EFAULT (Bad address) [pid 20385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20384] <... futex resumed>) = 0 [pid 20386] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20384] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20385] write(5, NULL, 176 [pid 20390] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20389] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20386] <... futex resumed>) = 1 [pid 20385] <... write resumed>) = -1 EFAULT (Bad address) [pid 20383] <... futex resumed>) = 0 [pid 20390] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20389] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20386] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20385] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20383] exit_group(0 [pid 20386] <... futex resumed>) = ? [pid 20385] <... futex resumed>) = 1 [pid 20384] <... futex resumed>) = 0 [pid 20383] <... exit_group resumed>) = ? [pid 20390] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20389] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20390] <... futex resumed>) = 1 [pid 20389] <... futex resumed>) = 1 [pid 20388] <... futex resumed>) = 0 [pid 20387] <... futex resumed>) = 0 [pid 20386] +++ exited with 0 +++ [pid 20385] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20384] exit_group(0 [pid 20383] +++ exited with 0 +++ [pid 20390] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20389] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20388] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20387] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20385] <... futex resumed>) = ? [pid 20384] <... exit_group resumed>) = ? [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20383, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20390] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20389] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20388] <... futex resumed>) = 0 [pid 20387] <... futex resumed>) = 0 [pid 20385] +++ exited with 0 +++ [pid 20390] pipe2( [pid 20389] pipe2( [pid 20388] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20387] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20384] +++ exited with 0 +++ [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20390] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20389] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20390] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20389] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20390] <... futex resumed>) = 1 [pid 20389] <... futex resumed>) = 1 [pid 20388] <... futex resumed>) = 0 [pid 20387] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20384, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20390] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20389] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20388] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20387] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20390] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20389] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20388] <... futex resumed>) = 0 [pid 20387] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20390] dup(4 [pid 20389] dup(4 [pid 20388] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20387] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... openat resumed>) = 3 [pid 20390] <... dup resumed>) = 5 [pid 20389] <... dup resumed>) = 5 [pid 3607] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20390] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20389] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20390] <... futex resumed>) = 1 [pid 20387] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20389] <... futex resumed>) = 1 [pid 20388] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20390] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20389] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20388] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20387] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 3606] <... close resumed>) = 0 [pid 20388] <... futex resumed>) = 0 [pid 20387] <... futex resumed>) = 0 [pid 20388] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20387] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20390] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20390] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20389] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20389] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20391 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20392 ./strace-static-x86_64: Process 20391 attached [pid 20391] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20391] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20391] setpgid(0, 0) = 0 [pid 20391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20391] write(3, "1000", 4) = 4 [pid 20391] close(3) = 0 [pid 20391] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20391] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20391] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20391] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20393], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20393 [pid 20391] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20391] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20393 attached [pid 20393] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20393] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20393] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20393] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20391] <... futex resumed>) = 0 [pid 20391] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20391] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20393] <... futex resumed>) = 1 [pid 20393] pipe2([3, 4], 0) = 0 [pid 20393] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20391] <... futex resumed>) = 0 [pid 20391] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20391] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20392 attached [pid 20393] <... futex resumed>) = 1 [pid 20390] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20390] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20387] <... futex resumed>) = 0 [pid 20392] set_robust_list(0x555556ba76e0, 24 [pid 20390] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20387] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20393] dup(4 [pid 20392] <... set_robust_list resumed>) = 0 [pid 20390] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20387] <... futex resumed>) = 0 [pid 20392] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20390] write(5, NULL, 176 [pid 20387] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20392] <... prctl resumed>) = 0 [pid 20390] <... write resumed>) = -1 EFAULT (Bad address) [pid 20392] setpgid(0, 0 [pid 20390] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20392] <... setpgid resumed>) = 0 [pid 20390] <... futex resumed>) = 1 [pid 20387] <... futex resumed>) = 0 [pid 20392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20390] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20387] exit_group(0 [pid 20392] <... openat resumed>) = 3 [pid 20390] <... futex resumed>) = ? [pid 20387] <... exit_group resumed>) = ? [pid 20393] <... dup resumed>) = 5 [pid 20392] write(3, "1000", 4 [pid 20390] +++ exited with 0 +++ [pid 20387] +++ exited with 0 +++ [pid 20393] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20392] <... write resumed>) = 4 [pid 20392] close(3 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20387, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20393] <... futex resumed>) = 1 [pid 20392] <... close resumed>) = 0 [pid 20391] <... futex resumed>) = 0 [pid 20389] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20393] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20392] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20391] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20389] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 20393] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20392] <... futex resumed>) = 0 [pid 20391] <... futex resumed>) = 0 [pid 20389] <... futex resumed>) = 1 [pid 20388] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20393] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20391] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20389] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20388] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20392] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20389] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20388] <... futex resumed>) = 0 [pid 3604] close(3 [pid 20392] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20388] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... close resumed>) = 0 [pid 20392] <... mprotect resumed>) = 0 [pid 20389] write(5, NULL, 176 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20392] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20389] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20394 [pid 20392] <... clone resumed>, parent_tid=[20395], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20395 [pid 20392] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20392] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20394 attached [pid 20394] set_robust_list(0x555556ba76e0, 24 [pid 20389] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20388] <... futex resumed>) = 0 [pid 20389] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20388] exit_group(0 [pid 20389] <... futex resumed>) = ? [pid 20388] <... exit_group resumed>) = ? [pid 20394] <... set_robust_list resumed>) = 0 [pid 20393] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20389] +++ exited with 0 +++ [pid 20388] +++ exited with 0 +++ ./strace-static-x86_64: Process 20395 attached [pid 20394] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20393] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20394] <... prctl resumed>) = 0 [pid 20394] setpgid(0, 0) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20393] <... futex resumed>) = 1 [pid 20391] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20394] <... openat resumed>) = 3 [pid 20393] write(5, NULL, 176 [pid 20391] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20395] set_robust_list(0x7f61a3ef39e0, 24 [pid 20394] write(3, "1000", 4 [pid 20393] <... write resumed>) = -1 EFAULT (Bad address) [pid 20391] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20395] <... set_robust_list resumed>) = 0 [pid 20394] <... write resumed>) = 4 [pid 20393] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20391] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] close(3 [pid 20394] close(3 [pid 3601] <... close resumed>) = 0 [pid 20394] <... close resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20394] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20396 [pid 20394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20395] mkdir("./file0", 0777 [pid 20394] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20393] <... futex resumed>) = 0 [pid 20391] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20395] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20394] <... mprotect resumed>) = 0 [pid 20393] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20391] exit_group(0 [pid 20395] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20394] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20393] <... futex resumed>) = ? [pid 20391] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20397 attached ./strace-static-x86_64: Process 20396 attached [pid 20395] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20393] +++ exited with 0 +++ [pid 20395] <... futex resumed>) = 1 [pid 20394] <... clone resumed>, parent_tid=[20397], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20397 [pid 20392] <... futex resumed>) = 0 [pid 20391] +++ exited with 0 +++ [pid 20396] set_robust_list(0x555556ba76e0, 24 [pid 20397] set_robust_list(0x7f61a3ef39e0, 24 [pid 20396] <... set_robust_list resumed>) = 0 [pid 20395] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20394] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20392] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20391, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20397] <... set_robust_list resumed>) = 0 [pid 20396] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20394] <... futex resumed>) = 0 [pid 20392] <... futex resumed>) = 0 [pid 20397] mkdir("./file0", 0777 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20396] <... prctl resumed>) = 0 [pid 20395] pipe2( [pid 20394] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20392] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... restart_syscall resumed>) = 0 [pid 20397] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20396] setpgid(0, 0 [pid 20395] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20395] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20397] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20396] <... setpgid resumed>) = 0 [pid 20395] <... futex resumed>) = 1 [pid 20392] <... futex resumed>) = 0 [pid 20395] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20392] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20397] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20396] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20392] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20397] <... futex resumed>) = 1 [pid 20396] <... openat resumed>) = 3 [pid 20395] dup(4 [pid 20394] <... futex resumed>) = 0 [pid 20392] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... openat resumed>) = 3 [pid 20397] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20396] write(3, "1000", 4 [pid 20395] <... dup resumed>) = 5 [pid 20394] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20397] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20396] <... write resumed>) = 4 [pid 20395] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20394] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20397] pipe2( [pid 20396] close(3 [pid 20395] <... futex resumed>) = 1 [pid 20394] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20392] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20397] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20396] <... close resumed>) = 0 [pid 20395] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20392] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20392] <... futex resumed>) = 0 [pid 20392] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20397] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20396] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20394] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20397] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20396] <... futex resumed>) = 0 [pid 20395] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20394] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20397] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20396] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20394] <... futex resumed>) = 0 [pid 20397] dup(4 [pid 20394] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20397] <... dup resumed>) = 5 [pid 20396] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20398 [pid 20397] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20396] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20397] <... futex resumed>) = 1 [pid 20394] <... futex resumed>) = 0 [pid 20396] <... mprotect resumed>) = 0 [pid 20397] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20394] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20397] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20396] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20394] <... futex resumed>) = 0 [pid 20397] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20394] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20399 attached [pid 20396] <... clone resumed>, parent_tid=[20399], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20399 [pid 20396] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20396] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20399] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20399] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20399] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20399] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20399] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20396] <... futex resumed>) = 0 [pid 20396] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20395] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20399] <... futex resumed>) = 0 [pid 20396] <... futex resumed>) = 1 ./strace-static-x86_64: Process 20398 attached [pid 20399] pipe2( [pid 20396] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20399] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20398] set_robust_list(0x555556ba76e0, 24 [pid 20397] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20395] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20399] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20398] <... set_robust_list resumed>) = 0 [pid 20397] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20399] <... futex resumed>) = 1 [pid 20398] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20397] <... futex resumed>) = 1 [pid 20396] <... futex resumed>) = 0 [pid 20395] <... futex resumed>) = 1 [pid 20394] <... futex resumed>) = 0 [pid 20392] <... futex resumed>) = 0 [pid 20399] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20398] <... prctl resumed>) = 0 [pid 20397] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20396] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20395] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20394] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20392] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20399] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20398] setpgid(0, 0 [pid 20397] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20396] <... futex resumed>) = 0 [pid 20395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20394] <... futex resumed>) = 0 [pid 20392] <... futex resumed>) = 0 [pid 20399] dup(4 [pid 20398] <... setpgid resumed>) = 0 [pid 20397] write(5, NULL, 176 [pid 20396] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20395] write(5, NULL, 176 [pid 20394] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20392] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20399] <... dup resumed>) = 5 [pid 20398] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20399] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20398] <... openat resumed>) = 3 [pid 20397] <... write resumed>) = -1 EFAULT (Bad address) [pid 20396] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20399] <... futex resumed>) = 0 [pid 20398] write(3, "1000", 4 [pid 20397] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20396] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20395] <... write resumed>) = -1 EFAULT (Bad address) [pid 20399] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20398] <... write resumed>) = 4 [pid 20397] <... futex resumed>) = 1 [pid 20396] <... futex resumed>) = 0 [pid 20395] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20394] <... futex resumed>) = 0 [pid 20398] close(3 [pid 20397] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20396] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20395] <... futex resumed>) = 1 [pid 20398] <... close resumed>) = 0 [pid 20395] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20394] exit_group(0 [pid 20392] <... futex resumed>) = 0 [pid 20398] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20397] <... futex resumed>) = ? [pid 20394] <... exit_group resumed>) = ? [pid 20392] exit_group(0 [pid 20398] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20397] +++ exited with 0 +++ [pid 20395] <... futex resumed>) = ? [pid 20392] <... exit_group resumed>) = ? [pid 20399] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20398] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20395] +++ exited with 0 +++ [pid 20394] +++ exited with 0 +++ [pid 20392] +++ exited with 0 +++ [pid 20399] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20398] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20394, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20398] <... mprotect resumed>) = 0 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20399] <... futex resumed>) = 1 [pid 20398] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20396] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20392, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] <... restart_syscall resumed>) = 0 [pid 20399] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20396] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20399] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20398] <... clone resumed>, parent_tid=[20400], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20400 [pid 20396] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20399] write(5, NULL, 176 [pid 20398] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20396] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20399] <... write resumed>) = -1 EFAULT (Bad address) [pid 20398] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... openat resumed>) = 3 [pid 20399] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20398] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] close(3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20399] <... futex resumed>) = 1 [pid 20396] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20399] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20396] exit_group(0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] close(3 [pid 20399] <... futex resumed>) = ? [pid 20396] <... exit_group resumed>) = ? [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20401 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20402 ./strace-static-x86_64: Process 20400 attached [pid 20400] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20400] mkdir("./file0", 0777 [pid 20399] +++ exited with 0 +++ [pid 20396] +++ exited with 0 +++ [pid 20400] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20396, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20400] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3601] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 20401 attached [pid 20400] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20401] set_robust_list(0x555556ba76e0, 24 [pid 20400] <... futex resumed>) = 1 [pid 20398] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20402 attached [pid 20401] <... set_robust_list resumed>) = 0 [pid 20400] pipe2( [pid 20398] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20402] set_robust_list(0x555556ba76e0, 24 [pid 20401] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20400] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20398] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20402] <... set_robust_list resumed>) = 0 [pid 20401] <... prctl resumed>) = 0 [pid 20400] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20398] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 20402] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20401] setpgid(0, 0 [pid 20400] <... futex resumed>) = 0 [pid 20398] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20402] <... prctl resumed>) = 0 [pid 20401] <... setpgid resumed>) = 0 [pid 20400] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20398] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20402] setpgid(0, 0 [pid 20401] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20400] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20398] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20402] <... setpgid resumed>) = 0 [pid 20401] <... openat resumed>) = 3 [pid 20400] dup(4 [pid 20398] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... close resumed>) = 0 [pid 20402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20401] write(3, "1000", 4 [pid 20400] <... dup resumed>) = 5 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20402] <... openat resumed>) = 3 [pid 20401] <... write resumed>) = 4 [pid 20400] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20402] write(3, "1000", 4 [pid 20401] close(3 [pid 20400] <... futex resumed>) = 1 [pid 20398] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20403 [pid 20402] <... write resumed>) = 4 [pid 20401] <... close resumed>) = 0 [pid 20400] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20398] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20402] close(3 [pid 20401] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20400] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20398] <... futex resumed>) = 0 [pid 20402] <... close resumed>) = 0 [pid 20401] <... futex resumed>) = 0 [pid 20400] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20398] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20402] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20401] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20402] <... futex resumed>) = 0 [pid 20401] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20402] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20401] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20402] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20401] <... mprotect resumed>) = 0 [pid 20402] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20401] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20402] <... mprotect resumed>) = 0 [pid 20402] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20401] <... clone resumed>, parent_tid=[20404], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20404 [pid 20401] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20402] <... clone resumed>, parent_tid=[20405], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20405 [pid 20401] <... futex resumed>) = 0 [pid 20402] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20401] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20402] <... futex resumed>) = 0 [pid 20402] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20404 attached [pid 20404] set_robust_list(0x7f61a3ef39e0, 24) = 0 ./strace-static-x86_64: Process 20403 attached [pid 20404] mkdir("./file0", 0777 [pid 20400] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20400] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20398] <... futex resumed>) = 0 [pid 20403] set_robust_list(0x555556ba76e0, 24 [pid 20400] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20398] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20403] <... set_robust_list resumed>) = 0 [pid 20400] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20398] <... futex resumed>) = 0 [pid 20404] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20400] write(5, NULL, 176 [pid 20398] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20404] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20400] <... write resumed>) = -1 EFAULT (Bad address) [pid 20403] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20404] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20400] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20404] <... futex resumed>) = 1 [pid 20403] <... prctl resumed>) = 0 [pid 20401] <... futex resumed>) = 0 [pid 20400] <... futex resumed>) = 1 [pid 20398] <... futex resumed>) = 0 [pid 20404] pipe2( [pid 20403] setpgid(0, 0 [pid 20401] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20400] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20398] exit_group(0./strace-static-x86_64: Process 20405 attached [pid 20404] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20403] <... setpgid resumed>) = 0 [pid 20401] <... futex resumed>) = 0 [pid 20400] <... futex resumed>) = ? [pid 20398] <... exit_group resumed>) = ? [pid 20405] set_robust_list(0x7f61a3ef39e0, 24 [pid 20404] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20401] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20400] +++ exited with 0 +++ [pid 20405] <... set_robust_list resumed>) = 0 [pid 20404] <... futex resumed>) = 0 [pid 20403] <... openat resumed>) = 3 [pid 20401] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20398] +++ exited with 0 +++ [pid 20404] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20403] write(3, "1000", 4 [pid 20401] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20405] mkdir("./file0", 0777 [pid 20404] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20403] <... write resumed>) = 4 [pid 20405] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20401] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20398, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20405] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20404] dup(4 [pid 20403] close(3 [pid 20401] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20405] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20404] <... dup resumed>) = 5 [pid 20403] <... close resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20405] <... futex resumed>) = 1 [pid 20404] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20403] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20402] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20405] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20404] <... futex resumed>) = 1 [pid 20403] <... futex resumed>) = 0 [pid 20402] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20401] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20405] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20404] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20403] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20402] <... futex resumed>) = 0 [pid 20401] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 20405] pipe2( [pid 20404] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20403] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20402] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20401] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20404] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20401] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20405] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20403] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20405] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20403] <... mprotect resumed>) = 0 [pid 20403] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20406 attached [pid 20405] <... futex resumed>) = 1 [pid 20404] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20402] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20406 [pid 20406] set_robust_list(0x555556ba76e0, 24 [pid 20405] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20404] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20403] <... clone resumed>, parent_tid=[20407], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20407 [pid 20402] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20406] <... set_robust_list resumed>) = 0 [pid 20405] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20404] <... futex resumed>) = 1 [pid 20403] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20402] <... futex resumed>) = 0 [pid 20401] <... futex resumed>) = 0 [pid 20404] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20402] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20401] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20404] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20401] <... futex resumed>) = 0 [pid 20404] write(5, NULL, 176 [pid 20401] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20404] <... write resumed>) = -1 EFAULT (Bad address) [pid 20404] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20401] <... futex resumed>) = 0 [pid 20405] dup(4 [pid 20404] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20403] <... futex resumed>) = 0 [pid 20401] exit_group(0 [pid 20406] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20405] <... dup resumed>) = 5 [pid 20404] <... futex resumed>) = ? [pid 20403] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20401] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20407 attached [pid 20406] <... prctl resumed>) = 0 [pid 20405] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20404] +++ exited with 0 +++ [pid 20401] +++ exited with 0 +++ [pid 20407] set_robust_list(0x7f61a3ef39e0, 24 [pid 20406] setpgid(0, 0 [pid 20405] <... futex resumed>) = 1 [pid 20402] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20401, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20407] <... set_robust_list resumed>) = 0 [pid 20406] <... setpgid resumed>) = 0 [pid 20405] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20402] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20407] mkdir("./file0", 0777 [pid 20406] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20405] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20402] <... futex resumed>) = 0 [pid 20407] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20405] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20402] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20407] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20407] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20403] <... futex resumed>) = 0 [pid 20407] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20403] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20407] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20403] <... futex resumed>) = 0 [pid 20407] pipe2( [pid 20403] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20407] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20407] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20403] <... futex resumed>) = 0 [pid 20407] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20403] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20407] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20403] <... futex resumed>) = 0 [pid 20407] dup(4 [pid 20403] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... openat resumed>) = 3 [pid 20406] <... openat resumed>) = 3 [pid 20407] <... dup resumed>) = 5 [pid 20406] write(3, "1000", 4 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20407] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20406] <... write resumed>) = 4 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20407] <... futex resumed>) = 1 [pid 20406] close(3 [pid 20403] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20407] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20406] <... close resumed>) = 0 [pid 20403] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 20407] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20406] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20405] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20403] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20407] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20406] <... futex resumed>) = 0 [pid 20405] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20403] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20406] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20408 [pid 20406] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20406] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20405] <... futex resumed>) = 1 [pid 20402] <... futex resumed>) = 0 [pid 20406] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20405] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20402] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20405] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20402] <... futex resumed>) = 0 [pid 20407] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20406] <... clone resumed>, parent_tid=[20409], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20409 [pid 20405] write(5, NULL, 176 [pid 20402] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20407] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20406] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20405] <... write resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20408 attached [pid 20407] <... futex resumed>) = 1 [pid 20406] <... futex resumed>) = 0 [pid 20405] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20403] <... futex resumed>) = 0 [pid 20407] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20406] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20405] <... futex resumed>) = 1 [pid 20403] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20402] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20409 attached [pid 20408] set_robust_list(0x555556ba76e0, 24 [pid 20407] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20405] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20403] <... futex resumed>) = 0 [pid 20402] exit_group(0 [pid 20409] set_robust_list(0x7f61a3ef39e0, 24 [pid 20408] <... set_robust_list resumed>) = 0 [pid 20407] write(5, NULL, 176 [pid 20405] <... futex resumed>) = ? [pid 20403] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20402] <... exit_group resumed>) = ? [pid 20409] <... set_robust_list resumed>) = 0 [pid 20407] <... write resumed>) = -1 EFAULT (Bad address) [pid 20405] +++ exited with 0 +++ [pid 20409] mkdir("./file0", 0777 [pid 20407] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20402] +++ exited with 0 +++ [pid 20408] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20409] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20408] <... prctl resumed>) = 0 [pid 20407] <... futex resumed>) = 1 [pid 20403] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20402, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20409] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20408] setpgid(0, 0 [pid 20407] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20403] exit_group(0 [pid 20409] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20406] <... futex resumed>) = 0 [pid 20409] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20406] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20406] <... futex resumed>) = 0 [pid 20409] pipe2( [pid 20406] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20409] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20408] <... setpgid resumed>) = 0 [pid 20407] <... futex resumed>) = ? [pid 20403] <... exit_group resumed>) = ? [pid 20409] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20408] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20407] +++ exited with 0 +++ [pid 20403] +++ exited with 0 +++ [pid 20409] <... futex resumed>) = 1 [pid 20408] <... openat resumed>) = 3 [pid 20406] <... futex resumed>) = 0 [pid 20409] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20408] write(3, "1000", 4 [pid 20406] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20408] <... write resumed>) = 4 [pid 20406] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20403, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20409] dup(4 [pid 20408] close(3 [pid 20406] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20409] <... dup resumed>) = 5 [pid 20408] <... close resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] <... openat resumed>) = 3 [pid 20409] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20408] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20409] <... futex resumed>) = 1 [pid 20408] <... futex resumed>) = 0 [pid 20406] <... futex resumed>) = 0 [pid 3604] close(3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20409] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20408] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20406] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 3601] close(3 [pid 20409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20408] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20406] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... close resumed>) = 0 [pid 20409] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20408] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20406] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20408] <... mprotect resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20411 attached ./strace-static-x86_64: Process 20410 attached [pid 20409] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20408] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20410 ./strace-static-x86_64: Process 20412 attached [pid 20411] set_robust_list(0x555556ba76e0, 24 [pid 20410] set_robust_list(0x555556ba76e0, 24 [pid 20409] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20411 [pid 20412] set_robust_list(0x7f61a3ef39e0, 24 [pid 20411] <... set_robust_list resumed>) = 0 [pid 20410] <... set_robust_list resumed>) = 0 [pid 20409] <... futex resumed>) = 1 [pid 20408] <... clone resumed>, parent_tid=[20412], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20412 [pid 20406] <... futex resumed>) = 0 [pid 20412] <... set_robust_list resumed>) = 0 [pid 20411] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20410] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20409] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20408] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20406] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20412] mkdir("./file0", 0777 [pid 20411] <... prctl resumed>) = 0 [pid 20410] <... prctl resumed>) = 0 [pid 20409] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20408] <... futex resumed>) = 0 [pid 20406] <... futex resumed>) = 0 [pid 20412] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20411] setpgid(0, 0 [pid 20410] setpgid(0, 0 [pid 20409] write(5, NULL, 176 [pid 20408] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20406] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20412] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20411] <... setpgid resumed>) = 0 [pid 20410] <... setpgid resumed>) = 0 [pid 20409] <... write resumed>) = -1 EFAULT (Bad address) [pid 20412] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20409] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20412] <... futex resumed>) = 1 [pid 20411] <... openat resumed>) = 3 [pid 20410] <... openat resumed>) = 3 [pid 20409] <... futex resumed>) = 1 [pid 20408] <... futex resumed>) = 0 [pid 20406] <... futex resumed>) = 0 [pid 20412] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20411] write(3, "1000", 4 [pid 20410] write(3, "1000", 4 [pid 20409] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20408] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20406] exit_group(0 [pid 20412] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20411] <... write resumed>) = 4 [pid 20410] <... write resumed>) = 4 [pid 20409] <... futex resumed>) = ? [pid 20408] <... futex resumed>) = 0 [pid 20406] <... exit_group resumed>) = ? [pid 20412] pipe2( [pid 20411] close(3 [pid 20410] close(3 [pid 20409] +++ exited with 0 +++ [pid 20408] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20406] +++ exited with 0 +++ [pid 20412] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20411] <... close resumed>) = 0 [pid 20410] <... close resumed>) = 0 [pid 20412] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20411] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20410] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20406, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20412] <... futex resumed>) = 1 [pid 20411] <... futex resumed>) = 0 [pid 20410] <... futex resumed>) = 0 [pid 20408] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20412] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20410] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20408] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 20412] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20411] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20410] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20408] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20412] dup(4 [pid 20411] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20410] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20408] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20412] <... dup resumed>) = 5 [pid 20411] <... mprotect resumed>) = 0 [pid 20410] <... mprotect resumed>) = 0 [pid 3606] close(3 [pid 20412] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20411] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20410] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... close resumed>) = 0 [pid 20412] <... futex resumed>) = 1 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20412] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20411] <... clone resumed>, parent_tid=[20413], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20413 [pid 20410] <... clone resumed>, parent_tid=[20414], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20414 [pid 20411] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20410] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20415 [pid 20411] <... futex resumed>) = 0 [pid 20410] <... futex resumed>) = 0 [pid 20411] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20410] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20415 attached [pid 20415] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20408] <... futex resumed>) = 0 [pid 20408] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20412] <... futex resumed>) = 0 [pid 20408] <... futex resumed>) = 1 [pid 20412] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005"./strace-static-x86_64: Process 20414 attached ./strace-static-x86_64: Process 20413 attached [pid 20408] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20415] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20415] setpgid(0, 0) = 0 [pid 20415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20415] write(3, "1000", 4) = 4 [pid 20415] close(3) = 0 [pid 20415] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20414] set_robust_list(0x7f61a3ef39e0, 24 [pid 20413] set_robust_list(0x7f61a3ef39e0, 24 [pid 20415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20414] <... set_robust_list resumed>) = 0 [pid 20413] <... set_robust_list resumed>) = 0 [pid 20415] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20415] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20414] mkdir("./file0", 0777 [pid 20413] mkdir("./file0", 0777 [pid 20415] <... clone resumed>, parent_tid=[20416], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20416 [pid 20415] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20414] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20415] <... futex resumed>) = 0 [pid 20413] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20415] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20416 attached [pid 20416] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20414] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20413] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20416] mkdir("./file0", 0777 [pid 20414] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20413] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20414] <... futex resumed>) = 1 [pid 20413] <... futex resumed>) = 1 [pid 20416] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20411] <... futex resumed>) = 0 [pid 20410] <... futex resumed>) = 0 [pid 20411] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20410] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20414] pipe2( [pid 20413] pipe2( [pid 20411] <... futex resumed>) = 0 [pid 20410] <... futex resumed>) = 0 [pid 20416] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20411] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20410] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20416] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20414] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20413] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20416] <... futex resumed>) = 1 [pid 20414] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20413] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20416] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20415] <... futex resumed>) = 0 [pid 20414] <... futex resumed>) = 1 [pid 20413] <... futex resumed>) = 1 [pid 20412] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20411] <... futex resumed>) = 0 [pid 20410] <... futex resumed>) = 0 [pid 20415] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20414] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20413] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20412] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20411] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20410] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20416] <... futex resumed>) = 0 [pid 20415] <... futex resumed>) = 1 [pid 20414] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20413] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20412] <... futex resumed>) = 1 [pid 20411] <... futex resumed>) = 0 [pid 20410] <... futex resumed>) = 0 [pid 20408] <... futex resumed>) = 0 [pid 20416] pipe2( [pid 20415] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20414] dup(4 [pid 20413] dup(4 [pid 20412] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20411] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20410] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20408] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20416] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20414] <... dup resumed>) = 5 [pid 20413] <... dup resumed>) = 5 [pid 20412] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20408] <... futex resumed>) = 0 [pid 20416] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20414] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20413] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20412] write(5, NULL, 176 [pid 20408] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20416] <... futex resumed>) = 1 [pid 20415] <... futex resumed>) = 0 [pid 20414] <... futex resumed>) = 1 [pid 20413] <... futex resumed>) = 1 [pid 20412] <... write resumed>) = -1 EFAULT (Bad address) [pid 20411] <... futex resumed>) = 0 [pid 20410] <... futex resumed>) = 0 [pid 20416] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20415] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20414] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20413] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20412] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20411] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20410] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20416] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20415] <... futex resumed>) = 0 [pid 20414] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20413] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20412] <... futex resumed>) = 1 [pid 20411] <... futex resumed>) = 0 [pid 20410] <... futex resumed>) = 0 [pid 20408] <... futex resumed>) = 0 [pid 20416] dup(4 [pid 20415] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20414] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20413] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20412] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20411] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20410] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20408] exit_group(0 [pid 20416] <... dup resumed>) = 5 [pid 20412] <... futex resumed>) = ? [pid 20408] <... exit_group resumed>) = ? [pid 20416] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20412] +++ exited with 0 +++ [pid 20408] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20408, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20416] <... futex resumed>) = 1 [pid 20415] <... futex resumed>) = 0 [pid 20416] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20415] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20416] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20415] <... futex resumed>) = 0 [pid 20416] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20415] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20414] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20413] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] <... openat resumed>) = 3 [pid 20414] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20413] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20414] <... futex resumed>) = 1 [pid 20413] <... futex resumed>) = 1 [pid 20411] <... futex resumed>) = 0 [pid 20410] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20414] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20413] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20411] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20410] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 20414] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20413] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20411] <... futex resumed>) = 0 [pid 20410] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20414] write(5, NULL, 176 [pid 20413] write(5, NULL, 176 [pid 20411] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20410] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20414] <... write resumed>) = -1 EFAULT (Bad address) [pid 20413] <... write resumed>) = -1 EFAULT (Bad address) [pid 20414] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20413] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20417 [pid 20414] <... futex resumed>) = 1 [pid 20413] <... futex resumed>) = 1 [pid 20411] <... futex resumed>) = 0 [pid 20410] <... futex resumed>) = 0 [pid 20414] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20413] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20411] exit_group(0 [pid 20410] exit_group(0 [pid 20414] <... futex resumed>) = ? [pid 20413] <... futex resumed>) = ? [pid 20411] <... exit_group resumed>) = ? [pid 20410] <... exit_group resumed>) = ? [pid 20414] +++ exited with 0 +++ [pid 20413] +++ exited with 0 +++ [pid 20411] +++ exited with 0 +++ [pid 20410] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20410, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20411, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3604] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20417 attached ) = -1 ENXIO (No such device or address) [pid 3601] <... openat resumed>) = 3 [pid 20417] set_robust_list(0x555556ba76e0, 24 [pid 3604] close(3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20417] <... set_robust_list resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20417] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20417] <... prctl resumed>) = 0 [pid 20416] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] close(3 [pid 20417] setpgid(0, 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20418 [pid 20417] <... setpgid resumed>) = 0 [pid 20416] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20416] <... futex resumed>) = 1 [pid 20415] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20417] <... openat resumed>) = 3 [pid 20416] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20415] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20417] write(3, "1000", 4) = 4 [pid 20417] close(3 [pid 20416] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20415] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20419 [pid 20417] <... close resumed>) = 0 [pid 20416] write(5, NULL, 176 [pid 20415] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20417] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20416] <... write resumed>) = -1 EFAULT (Bad address) [pid 20417] <... futex resumed>) = 0 [pid 20416] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20419 attached [pid 20417] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20416] <... futex resumed>) = 1 [pid 20415] <... futex resumed>) = 0 [pid 20419] set_robust_list(0x555556ba76e0, 24 [pid 20417] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20416] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20415] exit_group(0 [pid 20419] <... set_robust_list resumed>) = 0 [pid 20417] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20416] <... futex resumed>) = ? [pid 20415] <... exit_group resumed>) = ? [pid 20419] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20417] <... mprotect resumed>) = 0 [pid 20416] +++ exited with 0 +++ [pid 20419] <... prctl resumed>) = 0 [pid 20417] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20419] setpgid(0, 0 [pid 20415] +++ exited with 0 +++ [pid 20419] <... setpgid resumed>) = 0 [pid 20417] <... clone resumed>, parent_tid=[20420], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20420 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20415, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20419] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20417] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 20418 attached [pid 20419] <... openat resumed>) = 3 [pid 20417] <... futex resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20419] write(3, "1000", 4 [pid 20417] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20419] <... write resumed>) = 4 [pid 20418] set_robust_list(0x555556ba76e0, 24 [pid 20419] close(3 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20418] <... set_robust_list resumed>) = 0 [pid 20419] <... close resumed>) = 0 [pid 3606] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20420 attached [pid 20419] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20418] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20420] set_robust_list(0x7f61a3ef39e0, 24 [pid 20419] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20420] <... set_robust_list resumed>) = 0 [pid 20419] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20418] <... prctl resumed>) = 0 [pid 3606] close(3 [pid 20420] mkdir("./file0", 0777 [pid 20419] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] <... close resumed>) = 0 [pid 20420] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20419] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20420] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20419] <... mprotect resumed>) = 0 [pid 20420] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20419] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20421 [pid 20420] <... futex resumed>) = 1 [pid 20417] <... futex resumed>) = 0 [pid 20420] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20419] <... clone resumed>, parent_tid=[20422], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20422 [pid 20417] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20420] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20419] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20418] setpgid(0, 0 [pid 20417] <... futex resumed>) = 0 [pid 20420] pipe2( [pid 20419] <... futex resumed>) = 0 [pid 20418] <... setpgid resumed>) = 0 [pid 20417] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20420] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20419] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20418] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20420] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20418] <... openat resumed>) = 3 [pid 20417] <... futex resumed>) = 0 [pid 20420] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20418] write(3, "1000", 4 [pid 20417] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20420] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20418] <... write resumed>) = 4 [pid 20417] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20422 attached [pid 20420] dup(4 [pid 20418] close(3 [pid 20417] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20422] set_robust_list(0x7f61a3ef39e0, 24 [pid 20420] <... dup resumed>) = 5 [pid 20418] <... close resumed>) = 0 [pid 20422] <... set_robust_list resumed>) = 0 [pid 20420] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20418] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20422] mkdir("./file0", 0777 [pid 20420] <... futex resumed>) = 1 [pid 20418] <... futex resumed>) = 0 [pid 20417] <... futex resumed>) = 0 [pid 20422] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20420] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20418] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20417] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20422] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20420] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20418] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20417] <... futex resumed>) = 0 [pid 20422] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20420] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20418] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20417] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20422] <... futex resumed>) = 1 [pid 20419] <... futex resumed>) = 0 [pid 20418] <... mprotect resumed>) = 0 [pid 20422] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20419] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20418] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20421 attached [pid 20422] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20419] <... futex resumed>) = 0 [pid 20422] pipe2( [pid 20421] set_robust_list(0x555556ba76e0, 24 [pid 20419] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20418] <... clone resumed>, parent_tid=[20423], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20423 [pid 20422] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20421] <... set_robust_list resumed>) = 0 [pid 20418] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20422] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20418] <... futex resumed>) = 0 [pid 20422] <... futex resumed>) = 1 [pid 20421] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20419] <... futex resumed>) = 0 [pid 20418] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20422] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20421] <... prctl resumed>) = 0 [pid 20419] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20423 attached [pid 20422] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20421] setpgid(0, 0 [pid 20419] <... futex resumed>) = 0 [pid 20423] set_robust_list(0x7f61a3ef39e0, 24 [pid 20422] dup(4 [pid 20421] <... setpgid resumed>) = 0 [pid 20420] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20419] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20422] <... dup resumed>) = 5 [pid 20421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20420] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20423] <... set_robust_list resumed>) = 0 [pid 20422] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20420] <... futex resumed>) = 1 [pid 20417] <... futex resumed>) = 0 [pid 20422] <... futex resumed>) = 1 [pid 20421] <... openat resumed>) = 3 [pid 20420] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20419] <... futex resumed>) = 0 [pid 20417] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20423] mkdir("./file0", 0777 [pid 20422] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20421] write(3, "1000", 4 [pid 20420] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20419] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20417] <... futex resumed>) = 0 [pid 20423] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20422] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20421] <... write resumed>) = 4 [pid 20420] write(5, NULL, 176 [pid 20419] <... futex resumed>) = 0 [pid 20417] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20423] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20422] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20421] close(3 [pid 20420] <... write resumed>) = -1 EFAULT (Bad address) [pid 20419] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20421] <... close resumed>) = 0 [pid 20420] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20421] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20420] <... futex resumed>) = 1 [pid 20417] <... futex resumed>) = 0 [pid 20421] <... futex resumed>) = 0 [pid 20420] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20417] exit_group(0 [pid 20421] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20420] <... futex resumed>) = ? [pid 20417] <... exit_group resumed>) = ? [pid 20423] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20421] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20420] +++ exited with 0 +++ [pid 20417] +++ exited with 0 +++ [pid 20422] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20423] <... futex resumed>) = 1 [pid 20422] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20421] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20418] <... futex resumed>) = 0 [pid 20423] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20422] <... futex resumed>) = 1 [pid 20421] <... mprotect resumed>) = 0 [pid 20419] <... futex resumed>) = 0 [pid 20418] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20417, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20423] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20422] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20421] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20419] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20418] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20423] pipe2( [pid 20422] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20419] <... futex resumed>) = 0 [pid 20418] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... openat resumed>) = 3 [pid 20423] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20422] write(5, NULL, 176 [pid 20421] <... clone resumed>, parent_tid=[20424], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20424 [pid 20419] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20423] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20422] <... write resumed>) = -1 EFAULT (Bad address) [pid 20421] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20423] <... futex resumed>) = 1 [pid 20422] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20421] <... futex resumed>) = 0 [pid 20418] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20423] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20422] <... futex resumed>) = 1 [pid 20421] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20419] <... futex resumed>) = 0 [pid 20418] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 20423] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20422] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20419] exit_group(0 [pid 20418] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20423] dup(4 [pid 20422] <... futex resumed>) = ? [pid 20419] <... exit_group resumed>) = ? [pid 20418] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20424 attached [pid 20423] <... dup resumed>) = 5 [pid 20422] +++ exited with 0 +++ [pid 20419] +++ exited with 0 +++ [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20425 [pid 20424] set_robust_list(0x7f61a3ef39e0, 24 [pid 20423] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20419, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20424] <... set_robust_list resumed>) = 0 [pid 20423] <... futex resumed>) = 1 [pid 20418] <... futex resumed>) = 0 [pid 20424] mkdir("./file0", 0777 [pid 20423] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20418] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20424] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20423] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20418] <... futex resumed>) = 0 [pid 20424] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20423] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20418] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 20425 attached [pid 20424] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20425] set_robust_list(0x555556ba76e0, 24 [pid 20424] <... futex resumed>) = 1 [pid 20421] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20425] <... set_robust_list resumed>) = 0 [pid 20424] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20425] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20424] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20421] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20425] <... prctl resumed>) = 0 [pid 20424] pipe2( [pid 20421] <... futex resumed>) = 0 [pid 20425] setpgid(0, 0 [pid 20424] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20421] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20425] <... setpgid resumed>) = 0 [pid 20424] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20421] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] close(3 [pid 20425] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20424] <... futex resumed>) = 0 [pid 20421] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20425] <... openat resumed>) = 3 [pid 20424] dup(4 [pid 20425] write(3, "1000", 4 [pid 20424] <... dup resumed>) = 5 [pid 20425] <... write resumed>) = 4 [pid 20424] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20425] close(3 [pid 20424] <... futex resumed>) = 0 [pid 20425] <... close resumed>) = 0 [pid 20424] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20425] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20425] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20425] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20425] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20426], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20426 [pid 20425] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20425] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20426 attached [pid 20426] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20426] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20426] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20426] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20425] <... futex resumed>) = 0 [pid 20425] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20425] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20426] <... futex resumed>) = 1 [pid 20426] pipe2([3, 4], 0) = 0 [pid 20424] <... futex resumed>) = 0 [pid 20421] <... futex resumed>) = 1 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20424] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20421] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20426] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20425] <... futex resumed>) = 0 [pid 20421] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20426] dup(4 [pid 20425] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20421] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20427 [pid 20426] <... dup resumed>) = 5 [pid 20425] <... futex resumed>) = 0 [pid 20424] <... futex resumed>) = 0 [pid 20421] <... futex resumed>) = 1 [pid 20426] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20425] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20424] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20421] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20426] <... futex resumed>) = 0 [pid 20425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20426] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20425] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20426] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20425] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20427 attached [pid 20426] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20425] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20427] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20427] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20423] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20427] setpgid(0, 0 [pid 20423] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20427] <... setpgid resumed>) = 0 [pid 20423] <... futex resumed>) = 1 [pid 20418] <... futex resumed>) = 0 [pid 20427] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20423] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20418] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20424] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20427] <... openat resumed>) = 3 [pid 20423] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20418] <... futex resumed>) = 0 [pid 20427] write(3, "1000", 4 [pid 20426] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20424] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20423] write(5, NULL, 176 [pid 20418] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20427] <... write resumed>) = 4 [pid 20426] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20424] <... futex resumed>) = 1 [pid 20423] <... write resumed>) = -1 EFAULT (Bad address) [pid 20421] <... futex resumed>) = 0 [pid 20427] close(3 [pid 20426] <... futex resumed>) = 1 [pid 20425] <... futex resumed>) = 0 [pid 20424] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20423] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20421] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20427] <... close resumed>) = 0 [pid 20426] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20425] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20424] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20423] <... futex resumed>) = 1 [pid 20421] <... futex resumed>) = 0 [pid 20418] <... futex resumed>) = 0 [pid 20427] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20426] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20425] <... futex resumed>) = 0 [pid 20424] write(5, NULL, 176 [pid 20423] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20421] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20418] exit_group(0 [pid 20427] <... futex resumed>) = 0 [pid 20426] write(5, NULL, 176 [pid 20425] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20424] <... write resumed>) = -1 EFAULT (Bad address) [pid 20423] <... futex resumed>) = ? [pid 20418] <... exit_group resumed>) = ? [pid 20427] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20426] <... write resumed>) = -1 EFAULT (Bad address) [pid 20424] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20423] +++ exited with 0 +++ [pid 20427] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20426] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20424] <... futex resumed>) = 1 [pid 20421] <... futex resumed>) = 0 [pid 20418] +++ exited with 0 +++ [pid 20427] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20426] <... futex resumed>) = 1 [pid 20425] <... futex resumed>) = 0 [pid 20424] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20421] exit_group(0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20418, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20427] <... mprotect resumed>) = 0 [pid 20426] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20425] exit_group(0 [pid 20424] <... futex resumed>) = ? [pid 20421] <... exit_group resumed>) = ? [pid 20427] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20426] <... futex resumed>) = ? [pid 20425] <... exit_group resumed>) = ? [pid 20424] +++ exited with 0 +++ ./strace-static-x86_64: Process 20428 attached [pid 20426] +++ exited with 0 +++ [pid 20425] +++ exited with 0 +++ [pid 20421] +++ exited with 0 +++ [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20428] set_robust_list(0x7f61a3ef39e0, 24 [pid 20427] <... clone resumed>, parent_tid=[20428], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20428 [pid 3604] <... openat resumed>) = 3 [pid 20428] <... set_robust_list resumed>) = 0 [pid 20427] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20425, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20421, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20428] mkdir("./file0", 0777 [pid 20427] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20428] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20427] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] <... openat resumed>) = 3 [pid 3606] <... openat resumed>) = 3 [pid 3604] close(3 [pid 20428] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... close resumed>) = 0 [pid 20428] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20428] <... futex resumed>) = 1 [pid 20427] <... futex resumed>) = 0 [pid 3607] close(3 [pid 3606] close(3 [pid 20428] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20427] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20428] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20427] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20428] pipe2( [pid 20427] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20428] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20428] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20427] <... futex resumed>) = 0 [pid 20428] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20427] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20428] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20427] <... futex resumed>) = 0 [pid 20428] dup(4 [pid 20427] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20428] <... dup resumed>) = 5 [pid 20428] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20427] <... futex resumed>) = 0 [pid 20428] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20427] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20428] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20427] <... futex resumed>) = 0 [pid 20428] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20427] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20429 attached [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... close resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20429 [pid 20429] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20429] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20429] setpgid(0, 0) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20429] write(3, "1000", 4) = 4 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20430 [pid 20429] close(3) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20431 [pid 20429] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20429] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20429] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20429] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20430 attached [pid 20430] set_robust_list(0x555556ba76e0, 24 [pid 20429] <... clone resumed>, parent_tid=[20432], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20432 [pid 20430] <... set_robust_list resumed>) = 0 [pid 20429] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20430] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20429] <... futex resumed>) = 0 [pid 20430] <... prctl resumed>) = 0 [pid 20429] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20430] setpgid(0, 0./strace-static-x86_64: Process 20431 attached ) = 0 [pid 20430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20430] write(3, "1000", 4) = 4 [pid 20430] close(3) = 0 [pid 20430] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20430] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20431] set_robust_list(0x555556ba76e0, 24 [pid 20430] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20431] <... set_robust_list resumed>) = 0 [pid 20430] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20433], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20433 [pid 20430] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20431] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20430] <... futex resumed>) = 0 [pid 20430] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20431] <... prctl resumed>) = 0 [pid 20431] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 20433 attached [pid 20433] set_robust_list(0x7f61a3ef39e0, 24 [pid 20431] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20433] <... set_robust_list resumed>) = 0 [pid 20433] mkdir("./file0", 0777 [pid 20431] <... openat resumed>) = 3 [pid 20431] write(3, "1000", 4) = 4 [pid 20431] close(3 [pid 20433] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20433] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20433] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20431] <... close resumed>) = 0 [pid 20431] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20430] <... futex resumed>) = 0 [pid 20431] <... futex resumed>) = 0 [pid 20430] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20433] <... futex resumed>) = 1 [pid 20431] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20430] <... futex resumed>) = 0 [pid 20433] pipe2( [pid 20430] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20433] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20431] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20433] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20430] <... futex resumed>) = 0 [pid 20433] dup(4 [pid 20430] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20433] <... dup resumed>) = 5 [pid 20430] <... futex resumed>) = 0 [pid 20433] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20430] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20433] <... futex resumed>) = 0 [pid 20430] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20433] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20430] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20428] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20431] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20430] <... futex resumed>) = 0 [pid 20428] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20432 attached [pid 20431] <... mprotect resumed>) = 0 [pid 20430] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20428] <... futex resumed>) = 1 [pid 20427] <... futex resumed>) = 0 [pid 20433] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20432] set_robust_list(0x7f61a3ef39e0, 24 [pid 20431] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20428] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20427] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20433] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20432] <... set_robust_list resumed>) = 0 [pid 20428] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20427] <... futex resumed>) = 0 [pid 20433] <... futex resumed>) = 1 [pid 20432] mkdir("./file0", 0777 [pid 20431] <... clone resumed>, parent_tid=[20434], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20434 [pid 20430] <... futex resumed>) = 0 [pid 20428] write(5, NULL, 176 [pid 20427] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20433] write(5, NULL, 176 [pid 20432] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20431] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20430] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20428] <... write resumed>) = -1 EFAULT (Bad address) [pid 20433] <... write resumed>) = -1 EFAULT (Bad address) [pid 20432] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20431] <... futex resumed>) = 0 [pid 20430] <... futex resumed>) = 0 [pid 20428] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20433] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20432] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20431] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20430] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20428] <... futex resumed>) = 1 [pid 20427] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20434 attached [pid 20433] <... futex resumed>) = 0 [pid 20432] <... futex resumed>) = 1 [pid 20430] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20429] <... futex resumed>) = 0 [pid 20428] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20427] exit_group(0 [pid 20434] set_robust_list(0x7f61a3ef39e0, 24 [pid 20433] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20432] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20430] exit_group(0 [pid 20429] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20428] <... futex resumed>) = ? [pid 20427] <... exit_group resumed>) = ? [pid 20434] <... set_robust_list resumed>) = 0 [pid 20433] <... futex resumed>) = ? [pid 20432] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20430] <... exit_group resumed>) = ? [pid 20429] <... futex resumed>) = 0 [pid 20428] +++ exited with 0 +++ [pid 20427] +++ exited with 0 +++ [pid 20434] mkdir("./file0", 0777 [pid 20433] +++ exited with 0 +++ [pid 20432] pipe2( [pid 20430] +++ exited with 0 +++ [pid 20429] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20434] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20432] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20427, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20434] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20432] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20434] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20432] <... futex resumed>) = 1 [pid 20429] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20430, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] <... openat resumed>) = 3 [pid 20434] <... futex resumed>) = 1 [pid 20432] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20431] <... futex resumed>) = 0 [pid 20429] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20434] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20432] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20431] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20429] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20434] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20432] dup(4 [pid 20431] <... futex resumed>) = 0 [pid 20429] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3601] close(3 [pid 20434] pipe2( [pid 20432] <... dup resumed>) = 5 [pid 20431] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... close resumed>) = 0 [pid 20434] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20432] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20434] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20432] <... futex resumed>) = 1 [pid 20429] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20434] <... futex resumed>) = 1 [pid 20429] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20435 [pid 20434] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20429] <... futex resumed>) = 0 [pid 20429] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20435 attached [pid 20435] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20435] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20435] setpgid(0, 0) = 0 [pid 20432] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20431] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20431] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20434] <... futex resumed>) = 0 [pid 20431] <... futex resumed>) = 1 [pid 20434] dup(4) = 5 [pid 20434] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20431] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20436 [pid 20434] <... futex resumed>) = 0 [pid 20431] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20434] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20431] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20435] <... openat resumed>) = 3 [pid 20434] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20435] write(3, "1000", 4 [pid 20434] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20435] <... write resumed>) = 4 [pid 20435] close(3) = 0 [pid 20435] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20431] <... futex resumed>) = 0 [pid 20435] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20431] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20435] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20435] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20435] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20437], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20437 [pid 20435] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20435] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20437 attached [pid 20437] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20437] mkdir("./file0", 0777 [pid 20432] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20437] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20437] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20432] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20436 attached ) = 1 [pid 20429] <... futex resumed>) = 0 [pid 20436] set_robust_list(0x555556ba76e0, 24 [pid 20432] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20436] <... set_robust_list resumed>) = 0 [pid 20436] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20436] setpgid(0, 0) = 0 [pid 20436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20429] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20436] write(3, "1000", 4 [pid 20432] <... futex resumed>) = 0 [pid 20429] <... futex resumed>) = 1 [pid 20436] <... write resumed>) = 4 [pid 20432] write(5, NULL, 176 [pid 20429] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20436] close(3 [pid 20434] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20432] <... write resumed>) = -1 EFAULT (Bad address) [pid 20432] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20434] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20432] <... futex resumed>) = 1 [pid 20436] <... close resumed>) = 0 [pid 20434] <... futex resumed>) = 1 [pid 20432] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20431] <... futex resumed>) = 0 [pid 20429] <... futex resumed>) = 0 [pid 20437] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20436] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20434] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20431] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20429] exit_group(0 [pid 20437] <... futex resumed>) = 1 [pid 20436] <... futex resumed>) = 0 [pid 20435] <... futex resumed>) = 0 [pid 20434] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20432] <... futex resumed>) = ? [pid 20431] <... futex resumed>) = 0 [pid 20429] <... exit_group resumed>) = ? [pid 20437] pipe2( [pid 20436] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20435] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20434] write(5, NULL, 176 [pid 20432] +++ exited with 0 +++ [pid 20431] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20436] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20436] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20436] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20435] <... futex resumed>) = 0 [pid 20429] +++ exited with 0 +++ [pid 20434] <... write resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20438 attached [pid 20437] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20435] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20434] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20429, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20437] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20436] <... clone resumed>, parent_tid=[20438], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20438 [pid 20434] <... futex resumed>) = 1 [pid 20431] <... futex resumed>) = 0 [pid 20437] <... futex resumed>) = 1 [pid 20436] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20435] <... futex resumed>) = 0 [pid 20434] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20431] exit_group(0 [pid 20437] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20436] <... futex resumed>) = 0 [pid 20435] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20434] <... futex resumed>) = ? [pid 20431] <... exit_group resumed>) = ? [pid 20438] set_robust_list(0x7f61a3ef39e0, 24 [pid 20437] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20436] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20435] <... futex resumed>) = 0 [pid 20434] +++ exited with 0 +++ [pid 20438] <... set_robust_list resumed>) = 0 [pid 20437] dup(4 [pid 20435] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20431] +++ exited with 0 +++ [pid 20437] <... dup resumed>) = 5 [pid 20438] mkdir("./file0", 0777 [pid 20437] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20438] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20437] <... futex resumed>) = 1 [pid 20435] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20431, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20438] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20437] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20435] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20438] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20437] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20435] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20438] <... futex resumed>) = 1 [pid 20437] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20436] <... futex resumed>) = 0 [pid 20435] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20438] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20436] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20438] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20436] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20438] pipe2( [pid 20436] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20438] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20438] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20438] <... futex resumed>) = 1 [pid 20436] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20438] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20436] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 3604] <... close resumed>) = 0 [pid 20438] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20436] <... futex resumed>) = 0 [pid 20438] dup(4 [pid 20436] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20438] <... dup resumed>) = 5 [pid 3606] <... close resumed>) = 0 [pid 20438] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20436] <... futex resumed>) = 0 [pid 20438] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20436] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20438] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20436] <... futex resumed>) = 0 [pid 20438] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20436] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20440 attached ./strace-static-x86_64: Process 20439 attached [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20439 [pid 20440] set_robust_list(0x555556ba76e0, 24 [pid 20439] set_robust_list(0x555556ba76e0, 24 [pid 20437] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20440 [pid 20440] <... set_robust_list resumed>) = 0 [pid 20439] <... set_robust_list resumed>) = 0 [pid 20437] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20440] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20439] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20437] <... futex resumed>) = 1 [pid 20435] <... futex resumed>) = 0 [pid 20440] <... prctl resumed>) = 0 [pid 20439] <... prctl resumed>) = 0 [pid 20437] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20435] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20440] setpgid(0, 0 [pid 20439] setpgid(0, 0 [pid 20437] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20435] <... futex resumed>) = 0 [pid 20440] <... setpgid resumed>) = 0 [pid 20439] <... setpgid resumed>) = 0 [pid 20437] write(5, NULL, 176 [pid 20435] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20440] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20439] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20438] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20437] <... write resumed>) = -1 EFAULT (Bad address) [pid 20440] <... openat resumed>) = 3 [pid 20438] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20440] write(3, "1000", 4 [pid 20439] <... openat resumed>) = 3 [pid 20438] <... futex resumed>) = 1 [pid 20437] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20436] <... futex resumed>) = 0 [pid 20440] <... write resumed>) = 4 [pid 20439] write(3, "1000", 4 [pid 20438] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20437] <... futex resumed>) = 1 [pid 20436] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20435] <... futex resumed>) = 0 [pid 20440] close(3 [pid 20439] <... write resumed>) = 4 [pid 20438] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20437] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20436] <... futex resumed>) = 0 [pid 20435] exit_group(0 [pid 20440] <... close resumed>) = 0 [pid 20439] close(3 [pid 20438] write(5, NULL, 176 [pid 20437] <... futex resumed>) = ? [pid 20436] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20435] <... exit_group resumed>) = ? [pid 20440] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20439] <... close resumed>) = 0 [pid 20438] <... write resumed>) = -1 EFAULT (Bad address) [pid 20437] +++ exited with 0 +++ [pid 20438] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20436] <... futex resumed>) = 0 [pid 20438] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20436] exit_group(0 [pid 20438] <... futex resumed>) = ? [pid 20436] <... exit_group resumed>) = ? [pid 20435] +++ exited with 0 +++ [pid 20440] <... futex resumed>) = 0 [pid 20439] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20438] +++ exited with 0 +++ [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20435, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20440] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20439] <... futex resumed>) = 0 [pid 20436] +++ exited with 0 +++ [pid 20440] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20439] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20436, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20440] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20439] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20440] <... mprotect resumed>) = 0 [pid 20439] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20440] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20439] <... mprotect resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20441 attached [pid 20439] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... openat resumed>) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20442 attached [pid 20441] set_robust_list(0x7f61a3ef39e0, 24 [pid 20440] <... clone resumed>, parent_tid=[20441], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20441 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20442] set_robust_list(0x7f61a3ef39e0, 24 [pid 20441] <... set_robust_list resumed>) = 0 [pid 20440] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20439] <... clone resumed>, parent_tid=[20442], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20442 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] close(3 [pid 20442] <... set_robust_list resumed>) = 0 [pid 20441] mkdir("./file0", 0777 [pid 20440] <... futex resumed>) = 0 [pid 20439] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 3601] <... close resumed>) = 0 [pid 20442] mkdir("./file0", 0777 [pid 20441] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20440] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20439] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20443 ./strace-static-x86_64: Process 20443 attached [pid 20443] set_robust_list(0x555556ba76e0, 24 [pid 20441] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20439] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20441] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20442] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20441] <... futex resumed>) = 1 [pid 20440] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20444 [pid 20442] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20441] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20440] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20442] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20441] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20440] <... futex resumed>) = 0 [pid 20442] <... futex resumed>) = 1 [pid 20441] pipe2( [pid 20440] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20439] <... futex resumed>) = 0 [pid 20443] <... set_robust_list resumed>) = 0 [pid 20443] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20443] setpgid(0, 0 [pid 20442] pipe2( [pid 20441] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20439] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20443] <... setpgid resumed>) = 0 [pid 20442] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20441] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20439] <... futex resumed>) = 0 [pid 20443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20442] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20441] <... futex resumed>) = 1 [pid 20440] <... futex resumed>) = 0 [pid 20439] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20444 attached [pid 20443] <... openat resumed>) = 3 [pid 20442] <... futex resumed>) = 0 [pid 20441] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20440] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20439] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20444] set_robust_list(0x555556ba76e0, 24 [pid 20443] write(3, "1000", 4 [pid 20442] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20441] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20440] <... futex resumed>) = 0 [pid 20439] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20444] <... set_robust_list resumed>) = 0 [pid 20443] <... write resumed>) = 4 [pid 20442] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20441] dup(4 [pid 20440] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20439] <... futex resumed>) = 0 [pid 20444] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20443] close(3 [pid 20442] dup(4 [pid 20441] <... dup resumed>) = 5 [pid 20439] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20444] <... prctl resumed>) = 0 [pid 20443] <... close resumed>) = 0 [pid 20442] <... dup resumed>) = 5 [pid 20441] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20444] setpgid(0, 0 [pid 20443] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20442] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20441] <... futex resumed>) = 1 [pid 20440] <... futex resumed>) = 0 [pid 20444] <... setpgid resumed>) = 0 [pid 20443] <... futex resumed>) = 0 [pid 20442] <... futex resumed>) = 1 [pid 20441] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20440] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20439] <... futex resumed>) = 0 [pid 20444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20443] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20442] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20441] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20440] <... futex resumed>) = 0 [pid 20439] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20444] <... openat resumed>) = 3 [pid 20443] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20442] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20441] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20440] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20439] <... futex resumed>) = 0 [pid 20444] write(3, "1000", 4 [pid 20443] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20442] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20439] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20444] <... write resumed>) = 4 [pid 20443] <... mprotect resumed>) = 0 [pid 20444] close(3 [pid 20443] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20444] <... close resumed>) = 0 [pid 20444] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20443] <... clone resumed>, parent_tid=[20445], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20445 [pid 20444] <... futex resumed>) = 0 [pid 20443] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20444] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20443] <... futex resumed>) = 0 [pid 20444] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20443] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20444] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20444] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20446], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20446 [pid 20444] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20444] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20446 attached [pid 20446] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20446] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20446] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20446] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20445 attached ) = 1 [pid 20444] <... futex resumed>) = 0 [pid 20441] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20446] pipe2( [pid 20445] set_robust_list(0x7f61a3ef39e0, 24 [pid 20444] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20442] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20441] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20446] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20445] <... set_robust_list resumed>) = 0 [pid 20444] <... futex resumed>) = 0 [pid 20442] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20441] <... futex resumed>) = 1 [pid 20440] <... futex resumed>) = 0 [pid 20446] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20445] mkdir("./file0", 0777 [pid 20444] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20442] <... futex resumed>) = 1 [pid 20441] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20440] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20439] <... futex resumed>) = 0 [pid 20446] <... futex resumed>) = 0 [pid 20445] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20444] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20442] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20441] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20440] <... futex resumed>) = 0 [pid 20439] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20446] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20445] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20444] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20442] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20441] write(5, NULL, 176 [pid 20440] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20439] <... futex resumed>) = 0 [pid 20446] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20445] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20444] <... futex resumed>) = 0 [pid 20442] write(5, NULL, 176 [pid 20441] <... write resumed>) = -1 EFAULT (Bad address) [pid 20439] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20446] dup(4 [pid 20445] <... futex resumed>) = 1 [pid 20444] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20443] <... futex resumed>) = 0 [pid 20442] <... write resumed>) = -1 EFAULT (Bad address) [pid 20441] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20446] <... dup resumed>) = 5 [pid 20445] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20443] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20442] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20441] <... futex resumed>) = 1 [pid 20440] <... futex resumed>) = 0 [pid 20446] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20445] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20443] <... futex resumed>) = 0 [pid 20442] <... futex resumed>) = 1 [pid 20441] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20440] exit_group(0 [pid 20439] <... futex resumed>) = 0 [pid 20446] <... futex resumed>) = 1 [pid 20445] pipe2( [pid 20444] <... futex resumed>) = 0 [pid 20443] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20442] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20441] <... futex resumed>) = ? [pid 20440] <... exit_group resumed>) = ? [pid 20439] exit_group(0 [pid 20446] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20445] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20444] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20441] +++ exited with 0 +++ [pid 20446] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20444] <... futex resumed>) = 0 [pid 20446] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20445] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20444] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20442] <... futex resumed>) = ? [pid 20440] +++ exited with 0 +++ [pid 20439] <... exit_group resumed>) = ? [pid 20446] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20445] <... futex resumed>) = 1 [pid 20443] <... futex resumed>) = 0 [pid 20442] +++ exited with 0 +++ [pid 20439] +++ exited with 0 +++ [pid 20446] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20445] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20443] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20439, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20446] <... futex resumed>) = 1 [pid 20445] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20444] <... futex resumed>) = 0 [pid 20443] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20440, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20446] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20445] dup(4 [pid 20444] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20443] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20446] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20445] <... dup resumed>) = 5 [pid 20444] <... futex resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20446] write(5, NULL, 176 [pid 20445] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20444] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 20446] <... write resumed>) = -1 EFAULT (Bad address) [pid 20445] <... futex resumed>) = 1 [pid 20443] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20446] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20445] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20443] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20446] <... futex resumed>) = 1 [pid 20445] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20444] <... futex resumed>) = 0 [pid 20443] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 3604] close(3 [pid 20446] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20445] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20444] exit_group(0 [pid 20443] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... close resumed>) = 0 [pid 20446] <... futex resumed>) = ? [pid 20444] <... exit_group resumed>) = ? [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20446] +++ exited with 0 +++ [pid 20444] +++ exited with 0 +++ [pid 3606] close(3 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... close resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20444, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20447 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20448 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20449 ./strace-static-x86_64: Process 20449 attached [pid 20449] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20449] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20449] setpgid(0, 0) = 0 [pid 20445] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20449] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20445] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20448 attached [pid 20449] <... openat resumed>) = 3 [pid 20445] <... futex resumed>) = 1 [pid 20443] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20447 attached [pid 20449] write(3, "1000", 4 [pid 20448] set_robust_list(0x555556ba76e0, 24 [pid 20445] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20443] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20449] <... write resumed>) = 4 [pid 20448] <... set_robust_list resumed>) = 0 [pid 20447] set_robust_list(0x555556ba76e0, 24 [pid 20445] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20443] <... futex resumed>) = 0 [pid 20449] close(3 [pid 20443] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20449] <... close resumed>) = 0 [pid 20449] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20449] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20445] write(5, NULL, 176 [pid 20449] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20448] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20445] <... write resumed>) = -1 EFAULT (Bad address) [pid 20449] <... mprotect resumed>) = 0 [pid 20448] <... prctl resumed>) = 0 [pid 20447] <... set_robust_list resumed>) = 0 [pid 20445] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20449] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20448] setpgid(0, 0 [pid 20447] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20445] <... futex resumed>) = 1 [pid 20443] <... futex resumed>) = 0 [pid 20448] <... setpgid resumed>) = 0 [pid 20447] <... prctl resumed>) = 0 [pid 20445] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20443] exit_group(0 [pid 20449] <... clone resumed>, parent_tid=[20450], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20450 [pid 20448] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20447] setpgid(0, 0 [pid 20445] <... futex resumed>) = ? [pid 20443] <... exit_group resumed>) = ? [pid 20449] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20448] <... openat resumed>) = 3 [pid 20447] <... setpgid resumed>) = 0 [pid 20445] +++ exited with 0 +++ [pid 20448] write(3, "1000", 4 [pid 20447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20448] <... write resumed>) = 4 [pid 20447] <... openat resumed>) = 3 [pid 20443] +++ exited with 0 +++ [pid 20449] <... futex resumed>) = 0 [pid 20448] close(3 [pid 20447] write(3, "1000", 4 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20443, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20449] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20448] <... close resumed>) = 0 [pid 20447] <... write resumed>) = 4 [pid 20448] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20447] close(3 [pid 20448] <... futex resumed>) = 0 [pid 20447] <... close resumed>) = 0 [pid 20448] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20447] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20448] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20447] <... futex resumed>) = 0 [pid 20448] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20447] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] <... openat resumed>) = 3 [pid 20448] <... mprotect resumed>) = 0 [pid 20447] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20448] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20447] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20448] <... clone resumed>, parent_tid=[20451], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20451 [pid 20447] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] close(3 [pid 20448] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20452 attached ./strace-static-x86_64: Process 20451 attached ./strace-static-x86_64: Process 20450 attached ) = 0 [pid 3607] <... close resumed>) = 0 [pid 20452] set_robust_list(0x7f61a3ef39e0, 24 [pid 20451] set_robust_list(0x7f61a3ef39e0, 24 [pid 20450] set_robust_list(0x7f61a3ef39e0, 24 [pid 20448] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20447] <... clone resumed>, parent_tid=[20452], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20452 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20452] <... set_robust_list resumed>) = 0 [pid 20451] <... set_robust_list resumed>) = 0 [pid 20450] <... set_robust_list resumed>) = 0 [pid 20447] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20452] mkdir("./file0", 0777 [pid 20451] mkdir("./file0", 0777 [pid 20450] mkdir("./file0", 0777 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20453 [pid 20452] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20451] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20450] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20452] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20451] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20450] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20447] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20453 attached [pid 20452] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20451] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20450] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20447] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20453] set_robust_list(0x555556ba76e0, 24 [pid 20452] <... futex resumed>) = 0 [pid 20451] <... futex resumed>) = 1 [pid 20450] <... futex resumed>) = 1 [pid 20449] <... futex resumed>) = 0 [pid 20448] <... futex resumed>) = 0 [pid 20447] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20453] <... set_robust_list resumed>) = 0 [pid 20452] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20451] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20450] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20449] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20448] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20447] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20453] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20451] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20450] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20449] <... futex resumed>) = 0 [pid 20448] <... futex resumed>) = 0 [pid 20447] <... futex resumed>) = 0 [pid 20453] <... prctl resumed>) = 0 [pid 20452] pipe2( [pid 20451] pipe2( [pid 20450] pipe2( [pid 20449] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20448] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20447] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20453] setpgid(0, 0 [pid 20452] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20451] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20450] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20453] <... setpgid resumed>) = 0 [pid 20452] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20451] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20450] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20453] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20452] <... futex resumed>) = 1 [pid 20451] <... futex resumed>) = 1 [pid 20450] <... futex resumed>) = 1 [pid 20449] <... futex resumed>) = 0 [pid 20448] <... futex resumed>) = 0 [pid 20447] <... futex resumed>) = 0 [pid 20453] <... openat resumed>) = 3 [pid 20452] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20451] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20450] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20449] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20448] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20447] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20453] write(3, "1000", 4 [pid 20452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20451] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20450] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20449] <... futex resumed>) = 0 [pid 20448] <... futex resumed>) = 0 [pid 20447] <... futex resumed>) = 0 [pid 20453] <... write resumed>) = 4 [pid 20452] dup(4 [pid 20451] dup(4 [pid 20450] dup(4 [pid 20449] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20448] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20447] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20453] close(3 [pid 20452] <... dup resumed>) = 5 [pid 20451] <... dup resumed>) = 5 [pid 20450] <... dup resumed>) = 5 [pid 20453] <... close resumed>) = 0 [pid 20452] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20451] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20450] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20453] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20452] <... futex resumed>) = 1 [pid 20451] <... futex resumed>) = 1 [pid 20450] <... futex resumed>) = 1 [pid 20448] <... futex resumed>) = 0 [pid 20447] <... futex resumed>) = 0 [pid 20453] <... futex resumed>) = 0 [pid 20452] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20451] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20450] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20449] <... futex resumed>) = 0 [pid 20448] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20447] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20453] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20451] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20449] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20448] <... futex resumed>) = 0 [pid 20447] <... futex resumed>) = 0 [pid 20453] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20452] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20451] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20450] <... futex resumed>) = 0 [pid 20449] <... futex resumed>) = 1 [pid 20448] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20447] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20453] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20453] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20450] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20449] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20453] <... clone resumed>, parent_tid=[20454], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20454 [pid 20453] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20453] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20454 attached [pid 20454] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20454] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20454] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20454] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20453] <... futex resumed>) = 0 [pid 20453] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20453] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20454] <... futex resumed>) = 1 [pid 20454] pipe2([3, 4], 0) = 0 [pid 20454] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20453] <... futex resumed>) = 0 [pid 20453] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20453] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20454] <... futex resumed>) = 1 [pid 20454] dup(4) = 5 [pid 20454] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20453] <... futex resumed>) = 0 [pid 20454] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20453] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20453] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20451] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20451] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20448] <... futex resumed>) = 0 [pid 20451] write(5, NULL, 176 [pid 20448] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20452] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20451] <... write resumed>) = -1 EFAULT (Bad address) [pid 20450] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20452] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20451] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20450] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20452] <... futex resumed>) = 1 [pid 20451] <... futex resumed>) = 0 [pid 20450] <... futex resumed>) = 1 [pid 20449] <... futex resumed>) = 0 [pid 20448] <... futex resumed>) = 0 [pid 20447] <... futex resumed>) = 0 [pid 20452] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20451] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20450] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20449] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20448] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20447] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20450] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20449] <... futex resumed>) = 0 [pid 20448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20447] <... futex resumed>) = 0 [pid 20452] write(5, NULL, 176 [pid 20450] write(5, NULL, 176 [pid 20449] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20448] exit_group(0 [pid 20447] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20452] <... write resumed>) = -1 EFAULT (Bad address) [pid 20451] <... futex resumed>) = ? [pid 20450] <... write resumed>) = -1 EFAULT (Bad address) [pid 20448] <... exit_group resumed>) = ? [pid 20452] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20451] +++ exited with 0 +++ [pid 20450] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20452] <... futex resumed>) = 1 [pid 20450] <... futex resumed>) = 1 [pid 20449] <... futex resumed>) = 0 [pid 20447] <... futex resumed>) = 0 [pid 20452] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20450] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20449] exit_group(0 [pid 20448] +++ exited with 0 +++ [pid 20447] exit_group(0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20448, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20452] <... futex resumed>) = ? [pid 20450] <... futex resumed>) = ? [pid 20449] <... exit_group resumed>) = ? [pid 20447] <... exit_group resumed>) = ? [pid 20452] +++ exited with 0 +++ [pid 20450] +++ exited with 0 +++ [pid 20449] +++ exited with 0 +++ [pid 20447] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20447, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20449, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 20454] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3606] <... openat resumed>) = 3 [pid 3601] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20454] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20454] <... futex resumed>) = 1 [pid 20453] <... futex resumed>) = 0 [pid 3606] close(3 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20455 [pid 3601] close(3 [pid 20454] write(5, NULL, 176 [pid 20453] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20456 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20457 ./strace-static-x86_64: Process 20455 attached [pid 20455] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20455] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20455] setpgid(0, 0 [pid 20453] <... futex resumed>) = 0 [pid 20454] <... write resumed>) = -1 EFAULT (Bad address) [pid 20453] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20455] <... setpgid resumed>) = 0 [pid 20455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20454] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20456 attached [pid 20455] <... openat resumed>) = 3 [pid 20454] <... futex resumed>) = 1 [pid 20453] <... futex resumed>) = 0 [pid 20456] set_robust_list(0x555556ba76e0, 24 [pid 20455] write(3, "1000", 4 [pid 20454] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20453] exit_group(0 [pid 20456] <... set_robust_list resumed>) = 0 [pid 20455] <... write resumed>) = 4 [pid 20454] <... futex resumed>) = ? [pid 20453] <... exit_group resumed>) = ? [pid 20456] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20455] close(3 [pid 20456] <... prctl resumed>) = 0 [pid 20455] <... close resumed>) = 0 ./strace-static-x86_64: Process 20457 attached [pid 20456] setpgid(0, 0 [pid 20455] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20454] +++ exited with 0 +++ [pid 20453] +++ exited with 0 +++ [pid 20456] <... setpgid resumed>) = 0 [pid 20455] <... futex resumed>) = 0 [pid 20457] set_robust_list(0x555556ba76e0, 24 [pid 20456] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20455] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20453, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20457] <... set_robust_list resumed>) = 0 [pid 20456] <... openat resumed>) = 3 [pid 20455] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20456] write(3, "1000", 4 [pid 20455] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] <... restart_syscall resumed>) = 0 [pid 20456] <... write resumed>) = 4 [pid 20455] <... mprotect resumed>) = 0 [pid 20456] close(3 [pid 20455] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20456] <... close resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20456] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20455] <... clone resumed>, parent_tid=[20458], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20458 [pid 3607] <... openat resumed>) = 3 [pid 20456] <... futex resumed>) = 0 [pid 20455] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20456] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20455] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20456] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20455] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] close(3 [pid 20456] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] <... close resumed>) = 0 [pid 20457] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20456] <... mprotect resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20457] <... prctl resumed>) = 0 [pid 20456] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20459 [pid 20457] setpgid(0, 0 [pid 20456] <... clone resumed>, parent_tid=[20460], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20460 [pid 20456] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20457] <... setpgid resumed>) = 0 [pid 20456] <... futex resumed>) = 0 [pid 20457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20456] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20457] <... openat resumed>) = 3 [pid 20457] write(3, "1000", 4) = 4 [pid 20457] close(3./strace-static-x86_64: Process 20459 attached ) = 0 ./strace-static-x86_64: Process 20460 attached [pid 20459] set_robust_list(0x555556ba76e0, 24 [pid 20457] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20460] set_robust_list(0x7f61a3ef39e0, 24 [pid 20459] <... set_robust_list resumed>) = 0 [pid 20457] <... futex resumed>) = 0 [pid 20460] <... set_robust_list resumed>) = 0 [pid 20459] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20457] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 20458 attached [pid 20460] mkdir("./file0", 0777 [pid 20459] <... prctl resumed>) = 0 [pid 20457] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20460] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20459] setpgid(0, 0 [pid 20458] set_robust_list(0x7f61a3ef39e0, 24 [pid 20457] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20460] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20459] <... setpgid resumed>) = 0 [pid 20458] <... set_robust_list resumed>) = 0 [pid 20457] <... mprotect resumed>) = 0 [pid 20460] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20457] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20460] <... futex resumed>) = 1 [pid 20459] <... openat resumed>) = 3 [pid 20458] mkdir("./file0", 0777 [pid 20456] <... futex resumed>) = 0 [pid 20460] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20459] write(3, "1000", 4 [pid 20458] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20457] <... clone resumed>, parent_tid=[20461], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20461 [pid 20456] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20460] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20459] <... write resumed>) = 4 [pid 20457] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20456] <... futex resumed>) = 0 [pid 20460] pipe2( [pid 20459] close(3 [pid 20458] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20457] <... futex resumed>) = 0 [pid 20456] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20460] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20459] <... close resumed>) = 0 [pid 20458] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20457] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20460] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20459] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20458] <... futex resumed>) = 1 [pid 20455] <... futex resumed>) = 0 [pid 20460] <... futex resumed>) = 1 [pid 20459] <... futex resumed>) = 0 [pid 20458] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20456] <... futex resumed>) = 0 [pid 20455] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20460] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20459] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20458] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20456] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20455] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20461 attached [pid 20460] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20459] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20458] pipe2( [pid 20456] <... futex resumed>) = 0 [pid 20455] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20461] set_robust_list(0x7f61a3ef39e0, 24 [pid 20460] dup(4 [pid 20459] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20458] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20456] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20461] <... set_robust_list resumed>) = 0 [pid 20460] <... dup resumed>) = 5 [pid 20459] <... mprotect resumed>) = 0 [pid 20458] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20460] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20459] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20460] <... futex resumed>) = 1 [pid 20456] <... futex resumed>) = 0 [pid 20460] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20459] <... clone resumed>, parent_tid=[20462], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20462 [pid 20456] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20460] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20459] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20456] <... futex resumed>) = 0 [pid 20460] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20459] <... futex resumed>) = 0 [pid 20456] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20461] mkdir("./file0", 0777 [pid 20459] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20458] <... futex resumed>) = 1 [pid 20455] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20462 attached [pid 20461] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20458] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20455] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20462] set_robust_list(0x7f61a3ef39e0, 24 [pid 20461] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20460] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20458] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20455] <... futex resumed>) = 0 [pid 20462] <... set_robust_list resumed>) = 0 [pid 20461] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20460] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20458] dup(4 [pid 20455] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20461] <... futex resumed>) = 1 [pid 20460] <... futex resumed>) = 1 [pid 20458] <... dup resumed>) = 5 [pid 20457] <... futex resumed>) = 0 [pid 20456] <... futex resumed>) = 0 [pid 20462] mkdir("./file0", 0777 [pid 20461] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20460] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20458] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20457] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20456] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20462] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20461] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20460] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20458] <... futex resumed>) = 1 [pid 20457] <... futex resumed>) = 0 [pid 20456] <... futex resumed>) = 0 [pid 20455] <... futex resumed>) = 0 [pid 20462] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20461] pipe2( [pid 20460] write(5, NULL, 176 [pid 20458] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20457] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20456] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20455] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20462] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20461] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20460] <... write resumed>) = -1 EFAULT (Bad address) [pid 20458] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20455] <... futex resumed>) = 0 [pid 20462] <... futex resumed>) = 1 [pid 20461] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20460] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20459] <... futex resumed>) = 0 [pid 20458] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20455] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20462] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20461] <... futex resumed>) = 1 [pid 20460] <... futex resumed>) = 1 [pid 20459] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20457] <... futex resumed>) = 0 [pid 20456] <... futex resumed>) = 0 [pid 20460] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20459] <... futex resumed>) = 0 [pid 20456] exit_group(0 [pid 20460] <... futex resumed>) = ? [pid 20459] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20456] <... exit_group resumed>) = ? [pid 20461] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20457] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20460] +++ exited with 0 +++ [pid 20456] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20456, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20461] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] <... openat resumed>) = 3 [pid 20457] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20461] dup(4 [pid 20457] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20462] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20461] <... dup resumed>) = 5 [pid 3606] close(3 [pid 20462] pipe2( [pid 20461] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20463 ./strace-static-x86_64: Process 20463 attached [pid 20463] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20461] <... futex resumed>) = 1 [pid 20457] <... futex resumed>) = 0 [pid 20462] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20461] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20457] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20462] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20461] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20457] <... futex resumed>) = 0 [pid 20461] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20457] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20462] <... futex resumed>) = 1 [pid 20459] <... futex resumed>) = 0 [pid 20459] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20459] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20463] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20463] setpgid(0, 0) = 0 [pid 20463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20463] write(3, "1000", 4) = 4 [pid 20463] close(3) = 0 [pid 20463] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20463] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20463] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20463] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20464], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20464 [pid 20463] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20463] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20462] dup(4) = 5 [pid 20462] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20459] <... futex resumed>) = 0 [pid 20462] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20459] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20462] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20459] <... futex resumed>) = 0 [pid 20462] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20459] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20464 attached [pid 20464] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20464] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20464] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20464] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20463] <... futex resumed>) = 0 [pid 20464] pipe2( [pid 20463] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20464] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20463] <... futex resumed>) = 0 [pid 20464] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20463] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20464] <... futex resumed>) = 0 [pid 20463] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20464] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20463] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20464] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20463] <... futex resumed>) = 0 [pid 20458] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20464] dup(4 [pid 20463] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20464] <... dup resumed>) = 5 [pid 20458] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20464] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20458] <... futex resumed>) = 1 [pid 20455] <... futex resumed>) = 0 [pid 20464] <... futex resumed>) = 1 [pid 20463] <... futex resumed>) = 0 [pid 20455] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20464] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20463] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20455] <... futex resumed>) = 0 [pid 20464] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20463] <... futex resumed>) = 0 [pid 20458] write(5, NULL, 176 [pid 20455] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20464] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20463] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20458] <... write resumed>) = -1 EFAULT (Bad address) [pid 20458] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20455] <... futex resumed>) = 0 [pid 20458] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20455] exit_group(0 [pid 20458] <... futex resumed>) = ? [pid 20455] <... exit_group resumed>) = ? [pid 20461] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20458] +++ exited with 0 +++ [pid 20461] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20457] <... futex resumed>) = 0 [pid 20461] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20457] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20455] +++ exited with 0 +++ [pid 20461] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20457] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20455, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20461] write(5, NULL, 176 [pid 20457] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20461] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] <... restart_syscall resumed>) = 0 [pid 20461] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20457] <... futex resumed>) = 0 [pid 20461] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20457] exit_group(0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20461] <... futex resumed>) = ? [pid 20457] <... exit_group resumed>) = ? [pid 3604] <... openat resumed>) = 3 [pid 20461] +++ exited with 0 +++ [pid 20457] +++ exited with 0 +++ [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20457, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20462] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20462] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20465 [pid 20462] <... futex resumed>) = 1 [pid 20459] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20462] write(5, NULL, 176 [pid 20459] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20462] <... write resumed>) = -1 EFAULT (Bad address) [pid 20459] <... futex resumed>) = 0 [pid 20464] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20462] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20459] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20464] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20462] <... futex resumed>) = 0 [pid 20459] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] close(3./strace-static-x86_64: Process 20465 attached [pid 20464] <... futex resumed>) = 1 [pid 20463] <... futex resumed>) = 0 [pid 20462] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20459] exit_group(0 [pid 3601] <... close resumed>) = 0 [pid 20465] set_robust_list(0x555556ba76e0, 24 [pid 20464] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20463] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20462] <... futex resumed>) = ? [pid 20459] <... exit_group resumed>) = ? [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20463] <... futex resumed>) = 0 [pid 20463] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20466 ./strace-static-x86_64: Process 20466 attached [pid 20465] <... set_robust_list resumed>) = 0 [pid 20464] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20462] +++ exited with 0 +++ [pid 20459] +++ exited with 0 +++ [pid 20464] write(5, NULL, 176 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20459, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20464] <... write resumed>) = -1 EFAULT (Bad address) [pid 20465] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20466] set_robust_list(0x555556ba76e0, 24 [pid 20464] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20465] <... prctl resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20464] <... futex resumed>) = 1 [pid 20463] <... futex resumed>) = 0 [pid 20464] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3607] <... restart_syscall resumed>) = 0 [pid 20463] exit_group(0 [pid 20466] <... set_robust_list resumed>) = 0 [pid 20465] setpgid(0, 0 [pid 20463] <... exit_group resumed>) = ? [pid 20464] <... futex resumed>) = ? [pid 20465] <... setpgid resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 20466] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20464] +++ exited with 0 +++ [pid 20463] +++ exited with 0 +++ [pid 3607] <... close resumed>) = 0 [pid 20466] <... prctl resumed>) = 0 [pid 20465] <... openat resumed>) = 3 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20463, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20466] setpgid(0, 0 [pid 20465] write(3, "1000", 4 [pid 20466] <... setpgid resumed>) = 0 [pid 20465] <... write resumed>) = 4 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20467 ./strace-static-x86_64: Process 20467 attached [pid 20466] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20465] close(3 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20467] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20467] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20467] setpgid(0, 0) = 0 [pid 20467] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20467] write(3, "1000", 4) = 4 [pid 20467] close(3) = 0 [pid 20467] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20467] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20467] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20466] <... openat resumed>) = 3 [pid 20465] <... close resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20467] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20466] write(3, "1000", 4 [pid 20465] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20466] <... write resumed>) = 4 [pid 20465] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20467] <... clone resumed>, parent_tid=[20468], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20468 [pid 20466] close(3 [pid 20465] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] close(3./strace-static-x86_64: Process 20468 attached [pid 20467] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20466] <... close resumed>) = 0 [pid 20465] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] <... close resumed>) = 0 [pid 20468] set_robust_list(0x7f61a3ef39e0, 24 [pid 20466] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20465] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20468] <... set_robust_list resumed>) = 0 [pid 20467] <... futex resumed>) = 0 [pid 20466] <... futex resumed>) = 0 [pid 20465] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 20469 attached [pid 20468] mkdir("./file0", 0777 [pid 20467] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20466] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20465] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20469 ./strace-static-x86_64: Process 20470 attached [pid 20469] set_robust_list(0x555556ba76e0, 24 [pid 20468] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20466] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20470] set_robust_list(0x7f61a3ef39e0, 24 [pid 20469] <... set_robust_list resumed>) = 0 [pid 20470] <... set_robust_list resumed>) = 0 [pid 20469] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20470] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20469] <... prctl resumed>) = 0 [pid 20469] setpgid(0, 0) = 0 [pid 20469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20469] write(3, "1000", 4) = 4 [pid 20469] close(3) = 0 [pid 20469] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20469] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20469] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20468] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20466] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20465] <... clone resumed>, parent_tid=[20470], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20470 [pid 20469] <... mprotect resumed>) = 0 [pid 20466] <... mprotect resumed>) = 0 [pid 20465] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20469] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20468] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20466] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20470] <... futex resumed>) = 0 [pid 20465] <... futex resumed>) = 1 [pid 20470] mkdir("./file0", 0777 [pid 20465] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20470] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20469] <... clone resumed>, parent_tid=[20471], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20471 [pid 20468] <... futex resumed>) = 1 [pid 20467] <... futex resumed>) = 0 [pid 20466] <... clone resumed>, parent_tid=[20472], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20472 [pid 20470] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20469] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20468] pipe2( [pid 20467] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20466] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20472 attached [pid 20470] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20469] <... futex resumed>) = 0 [pid 20468] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20467] <... futex resumed>) = 0 [pid 20466] <... futex resumed>) = 0 [pid 20472] set_robust_list(0x7f61a3ef39e0, 24 [pid 20470] <... futex resumed>) = 1 [pid 20469] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20468] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20467] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20466] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20465] <... futex resumed>) = 0 [pid 20472] <... set_robust_list resumed>) = 0 [pid 20470] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20468] <... futex resumed>) = 0 [pid 20467] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20465] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20472] mkdir("./file0", 0777 [pid 20470] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20468] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20467] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20465] <... futex resumed>) = 0 [pid 20472] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20470] pipe2( [pid 20468] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20467] <... futex resumed>) = 0 [pid 20465] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20472] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20470] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20468] dup(4 [pid 20467] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20471 attached [pid 20472] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20470] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20468] <... dup resumed>) = 5 [pid 20472] <... futex resumed>) = 1 [pid 20471] set_robust_list(0x7f61a3ef39e0, 24 [pid 20470] <... futex resumed>) = 1 [pid 20468] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20466] <... futex resumed>) = 0 [pid 20465] <... futex resumed>) = 0 [pid 20472] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20471] <... set_robust_list resumed>) = 0 [pid 20470] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20468] <... futex resumed>) = 1 [pid 20467] <... futex resumed>) = 0 [pid 20466] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20465] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20472] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20471] mkdir("./file0", 0777 [pid 20470] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20468] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20467] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20466] <... futex resumed>) = 0 [pid 20465] <... futex resumed>) = 0 [pid 20472] pipe2( [pid 20471] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20470] dup(4 [pid 20468] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20467] <... futex resumed>) = 0 [pid 20466] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20465] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20472] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20471] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20470] <... dup resumed>) = 5 [pid 20468] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20467] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20472] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20471] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20470] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20472] <... futex resumed>) = 1 [pid 20471] <... futex resumed>) = 1 [pid 20470] <... futex resumed>) = 1 [pid 20469] <... futex resumed>) = 0 [pid 20466] <... futex resumed>) = 0 [pid 20472] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20471] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20470] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20469] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20465] <... futex resumed>) = 0 [pid 20471] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20469] <... futex resumed>) = 0 [pid 20466] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20465] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20471] pipe2( [pid 20469] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20472] <... futex resumed>) = 0 [pid 20471] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20470] <... futex resumed>) = 0 [pid 20466] <... futex resumed>) = 1 [pid 20465] <... futex resumed>) = 1 [pid 20472] dup(4 [pid 20471] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20470] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20472] <... dup resumed>) = 5 [pid 20471] <... futex resumed>) = 1 [pid 20469] <... futex resumed>) = 0 [pid 20472] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20471] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20469] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20472] <... futex resumed>) = 0 [pid 20471] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20469] <... futex resumed>) = 0 [pid 20472] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20471] dup(4 [pid 20469] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20471] <... dup resumed>) = 5 [pid 20471] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20469] <... futex resumed>) = 0 [pid 20471] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20469] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20471] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20469] <... futex resumed>) = 0 [pid 20471] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20469] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20466] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 20465] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20466] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20472] <... futex resumed>) = 0 [pid 20468] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20472] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20466] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20468] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20467] <... futex resumed>) = 0 [pid 20468] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20467] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20468] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20467] <... futex resumed>) = 0 [pid 20468] write(5, NULL, 176 [pid 20467] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20468] <... write resumed>) = -1 EFAULT (Bad address) [pid 20468] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20467] <... futex resumed>) = 0 [pid 20468] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20467] exit_group(0 [pid 20468] <... futex resumed>) = ? [pid 20467] <... exit_group resumed>) = ? [pid 20468] +++ exited with 0 +++ [pid 20467] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20467, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20473 ./strace-static-x86_64: Process 20473 attached [pid 20473] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20473] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20473] setpgid(0, 0) = 0 [pid 20473] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20473] write(3, "1000", 4) = 4 [pid 20473] close(3) = 0 [pid 20473] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20470] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20473] <... futex resumed>) = 0 [pid 20470] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20473] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20470] <... futex resumed>) = 1 [pid 20465] <... futex resumed>) = 0 [pid 20473] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20471] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20465] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20470] write(5, NULL, 176 [pid 20473] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20471] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20470] <... write resumed>) = -1 EFAULT (Bad address) [pid 20465] <... futex resumed>) = 0 [pid 20473] <... mprotect resumed>) = 0 [pid 20471] <... futex resumed>) = 1 [pid 20470] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20469] <... futex resumed>) = 0 [pid 20465] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20473] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20472] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20471] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20470] <... futex resumed>) = 0 [pid 20469] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20465] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20472] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20471] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20470] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20469] <... futex resumed>) = 0 [pid 20465] exit_group(0 [pid 20473] <... clone resumed>, parent_tid=[20474], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20474 [pid 20472] <... futex resumed>) = 1 [pid 20471] write(5, NULL, 176 [pid 20470] <... futex resumed>) = ? [pid 20469] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20466] <... futex resumed>) = 0 [pid 20465] <... exit_group resumed>) = ? [pid 20473] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20472] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20471] <... write resumed>) = -1 EFAULT (Bad address) [pid 20470] +++ exited with 0 +++ [pid 20466] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20465] +++ exited with 0 +++ [pid 20473] <... futex resumed>) = 0 [pid 20472] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20471] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20466] <... futex resumed>) = 0 [pid 20473] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20472] write(5, NULL, 176 [pid 20471] <... futex resumed>) = 1 [pid 20469] <... futex resumed>) = 0 [pid 20466] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20465, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20472] <... write resumed>) = -1 EFAULT (Bad address) [pid 20471] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20469] exit_group(0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 20474 attached [pid 20472] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20471] <... futex resumed>) = ? [pid 20469] <... exit_group resumed>) = ? [pid 3604] <... openat resumed>) = 3 [pid 20474] set_robust_list(0x7f61a3ef39e0, 24 [pid 20472] <... futex resumed>) = 1 [pid 20471] +++ exited with 0 +++ [pid 20469] +++ exited with 0 +++ [pid 20466] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20474] <... set_robust_list resumed>) = 0 [pid 20472] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20466] exit_group(0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20469, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20472] <... futex resumed>) = ? [pid 20466] <... exit_group resumed>) = ? [pid 3604] close(3 [pid 20472] +++ exited with 0 +++ [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 20466] +++ exited with 0 +++ [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... close resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20466, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20474] mkdir("./file0", 0777 [pid 3606] close(3 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20474] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3606] <... close resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20474] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20475 [pid 20474] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20473] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20476 [pid 20474] <... futex resumed>) = 1 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20474] pipe2( [pid 20473] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20474] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20473] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20474] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20473] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20475 attached [pid 20474] <... futex resumed>) = 0 [pid 20473] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] close(3./strace-static-x86_64: Process 20476 attached [pid 20475] set_robust_list(0x555556ba76e0, 24 [pid 20474] dup(4 [pid 20473] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20476] set_robust_list(0x555556ba76e0, 24 [pid 20475] <... set_robust_list resumed>) = 0 [pid 20474] <... dup resumed>) = 5 [pid 20473] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20476] <... set_robust_list resumed>) = 0 [pid 20475] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20474] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20473] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20476] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20475] <... prctl resumed>) = 0 [pid 20474] <... futex resumed>) = 0 [pid 20473] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20477 [pid 20476] <... prctl resumed>) = 0 [pid 20475] setpgid(0, 0 [pid 20474] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20473] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20476] setpgid(0, 0 [pid 20475] <... setpgid resumed>) = 0 [pid 20474] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20473] <... futex resumed>) = 0 [pid 20476] <... setpgid resumed>) = 0 [pid 20475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20475] <... openat resumed>) = 3 [pid 20474] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20473] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20476] <... openat resumed>) = 3 [pid 20475] write(3, "1000", 4 [pid 20476] write(3, "1000", 4 [pid 20475] <... write resumed>) = 4 [pid 20476] <... write resumed>) = 4 [pid 20475] close(3 [pid 20476] close(3 [pid 20475] <... close resumed>) = 0 [pid 20476] <... close resumed>) = 0 [pid 20475] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20476] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20475] <... futex resumed>) = 0 [pid 20476] <... futex resumed>) = 0 [pid 20475] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20476] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20475] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20476] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20475] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20476] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20475] <... mprotect resumed>) = 0 [pid 20476] <... mprotect resumed>) = 0 [pid 20475] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20476] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20475] <... clone resumed>, parent_tid=[20478], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20478 [pid 20476] <... clone resumed>, parent_tid=[20479], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20479 [pid 20475] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20476] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20475] <... futex resumed>) = 0 [pid 20476] <... futex resumed>) = 0 [pid 20475] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20476] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20478 attached [pid 20478] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20478] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20478] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20478] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20474] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20479 attached [pid 20478] <... futex resumed>) = 1 [pid 20475] <... futex resumed>) = 0 [pid 20474] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20479] set_robust_list(0x7f61a3ef39e0, 24 [pid 20478] pipe2( [pid 20475] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20473] <... futex resumed>) = 0 [pid 20474] <... futex resumed>) = 1 [pid 20479] <... set_robust_list resumed>) = 0 [pid 20478] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20475] <... futex resumed>) = 0 [pid 20474] write(5, NULL, 176 [pid 20473] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20479] mkdir("./file0", 0777 [pid 20478] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20475] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20474] <... write resumed>) = -1 EFAULT (Bad address) [pid 20473] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20477 attached [pid 20479] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20478] <... futex resumed>) = 0 [pid 20475] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20474] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20473] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20479] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20478] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20477] set_robust_list(0x555556ba76e0, 24 [pid 20475] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20474] <... futex resumed>) = 0 [pid 20473] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20479] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20478] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20477] <... set_robust_list resumed>) = 0 [pid 20475] <... futex resumed>) = 0 [pid 20474] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20473] exit_group(0 [pid 20479] <... futex resumed>) = 1 [pid 20478] dup(4 [pid 20476] <... futex resumed>) = 0 [pid 20477] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20475] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20474] <... futex resumed>) = ? [pid 20473] <... exit_group resumed>) = ? [pid 20479] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20478] <... dup resumed>) = 5 [pid 20476] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20479] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20478] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20476] <... futex resumed>) = 0 [pid 20479] pipe2( [pid 20478] <... futex resumed>) = 1 [pid 20476] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20475] <... futex resumed>) = 0 [pid 20474] +++ exited with 0 +++ [pid 20477] <... prctl resumed>) = 0 [pid 20473] +++ exited with 0 +++ [pid 20479] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20478] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20475] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20473, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20477] setpgid(0, 0 [pid 20479] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20478] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20477] <... setpgid resumed>) = 0 [pid 20475] <... futex resumed>) = 0 [pid 20479] <... futex resumed>) = 1 [pid 20478] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20476] <... futex resumed>) = 0 [pid 20475] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20479] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20477] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20476] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20479] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20476] <... futex resumed>) = 0 [pid 20479] dup(4 [pid 20477] <... openat resumed>) = 3 [pid 20476] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20479] <... dup resumed>) = 5 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20479] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20477] write(3, "1000", 4 [pid 3607] <... openat resumed>) = 3 [pid 20479] <... futex resumed>) = 1 [pid 20477] <... write resumed>) = 4 [pid 20476] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20479] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20477] close(3 [pid 20476] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20479] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20477] <... close resumed>) = 0 [pid 20476] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20479] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20478] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20477] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20476] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 20478] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20479] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20478] <... futex resumed>) = 1 [pid 20477] <... futex resumed>) = 0 [pid 20475] <... futex resumed>) = 0 [pid 20479] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20478] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20475] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20480 [pid 20479] <... futex resumed>) = 1 [pid 20478] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20476] <... futex resumed>) = 0 [pid 20475] <... futex resumed>) = 0 [pid 20479] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20478] write(5, NULL, 176 [pid 20476] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20475] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20479] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20478] <... write resumed>) = -1 EFAULT (Bad address) [pid 20476] <... futex resumed>) = 0 [pid 20479] write(5, NULL, 176 [pid 20478] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20476] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20479] <... write resumed>) = -1 EFAULT (Bad address) [pid 20478] <... futex resumed>) = 1 [pid 20475] <... futex resumed>) = 0 [pid 20479] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20478] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20477] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20475] exit_group(0 [pid 20479] <... futex resumed>) = 1 [pid 20478] <... futex resumed>) = ? [pid 20476] <... futex resumed>) = 0 [pid 20475] <... exit_group resumed>) = ? [pid 20477] <... mmap resumed>) = 0x7f61a3ed3000 ./strace-static-x86_64: Process 20480 attached [pid 20479] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20478] +++ exited with 0 +++ [pid 20476] exit_group(0 [pid 20475] +++ exited with 0 +++ [pid 20477] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20479] <... futex resumed>) = ? [pid 20476] <... exit_group resumed>) = ? [pid 20480] set_robust_list(0x555556ba76e0, 24 [pid 20479] +++ exited with 0 +++ [pid 20477] <... mprotect resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20475, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20480] <... set_robust_list resumed>) = 0 [pid 20477] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20476] +++ exited with 0 +++ [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20476, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20477] <... clone resumed>, parent_tid=[20481], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20481 [pid 3604] <... openat resumed>) = 3 [pid 20477] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20477] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20477] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... openat resumed>) = 3 [pid 3604] close(3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... close resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] close(3) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20483 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20482 ./strace-static-x86_64: Process 20481 attached [pid 20481] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20481] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20481] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20481] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20477] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20483 attached [pid 20481] pipe2( [pid 20480] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20477] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20482 attached [pid 20483] set_robust_list(0x555556ba76e0, 24 [pid 20481] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20480] <... prctl resumed>) = 0 [pid 20477] <... futex resumed>) = 0 [pid 20483] <... set_robust_list resumed>) = 0 [pid 20482] set_robust_list(0x555556ba76e0, 24 [pid 20481] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20480] setpgid(0, 0 [pid 20477] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20483] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20482] <... set_robust_list resumed>) = 0 [pid 20481] <... futex resumed>) = 0 [pid 20477] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20480] <... setpgid resumed>) = 0 [pid 20483] <... prctl resumed>) = 0 [pid 20482] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20481] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20477] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20483] setpgid(0, 0 [pid 20482] <... prctl resumed>) = 0 [pid 20481] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20480] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20477] <... futex resumed>) = 0 [pid 20483] <... setpgid resumed>) = 0 [pid 20482] setpgid(0, 0 [pid 20481] dup(4 [pid 20480] <... openat resumed>) = 3 [pid 20477] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20482] <... setpgid resumed>) = 0 [pid 20481] <... dup resumed>) = 5 [pid 20480] write(3, "1000", 4 [pid 20483] <... openat resumed>) = 3 [pid 20482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20481] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20480] <... write resumed>) = 4 [pid 20483] write(3, "1000", 4 [pid 20482] <... openat resumed>) = 3 [pid 20481] <... futex resumed>) = 1 [pid 20477] <... futex resumed>) = 0 [pid 20480] close(3 [pid 20483] <... write resumed>) = 4 [pid 20482] write(3, "1000", 4 [pid 20481] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20477] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20480] <... close resumed>) = 0 [pid 20483] close(3 [pid 20482] <... write resumed>) = 4 [pid 20481] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20480] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20477] <... futex resumed>) = 0 [pid 20483] <... close resumed>) = 0 [pid 20482] close(3 [pid 20481] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20480] <... futex resumed>) = 0 [pid 20483] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20482] <... close resumed>) = 0 [pid 20480] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20477] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20483] <... futex resumed>) = 0 [pid 20482] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20480] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20483] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20482] <... futex resumed>) = 0 [pid 20481] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20480] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20483] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20482] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20481] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20480] <... mprotect resumed>) = 0 [pid 20483] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20482] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20481] <... futex resumed>) = 1 [pid 20480] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20477] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20484 attached [pid 20483] <... mprotect resumed>) = 0 [pid 20482] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20481] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20477] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20484] set_robust_list(0x7f61a3ef39e0, 24 [pid 20483] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20482] <... mprotect resumed>) = 0 [pid 20481] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20480] <... clone resumed>, parent_tid=[20484], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20484 [pid 20477] <... futex resumed>) = 0 [pid 20482] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20481] write(5, NULL, 176 [pid 20480] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20477] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20486 attached ./strace-static-x86_64: Process 20485 attached [pid 20484] <... set_robust_list resumed>) = 0 [pid 20483] <... clone resumed>, parent_tid=[20485], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20485 [pid 20481] <... write resumed>) = -1 EFAULT (Bad address) [pid 20480] <... futex resumed>) = 0 [pid 20480] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20484] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20484] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20483] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20482] <... clone resumed>, parent_tid=[20486], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20486 [pid 20486] set_robust_list(0x7f61a3ef39e0, 24 [pid 20484] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20481] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20484] <... futex resumed>) = 1 [pid 20482] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20480] <... futex resumed>) = 0 [pid 20484] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20483] <... futex resumed>) = 0 [pid 20482] <... futex resumed>) = 0 [pid 20481] <... futex resumed>) = 1 [pid 20480] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20477] <... futex resumed>) = 0 [pid 20484] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20483] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20482] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20481] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20480] <... futex resumed>) = 0 [pid 20477] exit_group(0 [pid 20484] pipe2( [pid 20481] <... futex resumed>) = ? [pid 20480] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20477] <... exit_group resumed>) = ? [pid 20486] <... set_robust_list resumed>) = 0 [pid 20485] set_robust_list(0x7f61a3ef39e0, 24 [pid 20484] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20481] +++ exited with 0 +++ [pid 20486] mkdir("./file0", 0777 [pid 20485] <... set_robust_list resumed>) = 0 [pid 20477] +++ exited with 0 +++ [pid 20486] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20484] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20477, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20485] mkdir("./file0", 0777 [pid 20486] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20484] <... futex resumed>) = 1 [pid 20480] <... futex resumed>) = 0 [pid 20486] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20484] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20480] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20484] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20480] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20486] <... futex resumed>) = 1 [pid 20485] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20484] dup(4 [pid 20482] <... futex resumed>) = 0 [pid 20480] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 20486] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20485] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20484] <... dup resumed>) = 5 [pid 20482] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20486] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20485] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20484] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20482] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20486] pipe2( [pid 20485] <... futex resumed>) = 1 [pid 20484] <... futex resumed>) = 1 [pid 20483] <... futex resumed>) = 0 [pid 20482] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20480] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20486] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20485] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20484] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20483] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20480] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20486] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20485] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20484] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20483] <... futex resumed>) = 0 [pid 20480] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20486] <... futex resumed>) = 1 [pid 20485] pipe2( [pid 20484] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20483] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20482] <... futex resumed>) = 0 [pid 20480] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20487 attached [pid 20486] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20485] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20482] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20486] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20485] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20482] <... futex resumed>) = 0 [pid 20486] dup(4 [pid 20485] <... futex resumed>) = 1 [pid 20483] <... futex resumed>) = 0 [pid 20482] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20487 [pid 20486] <... dup resumed>) = 5 [pid 20485] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20483] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20486] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20485] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20483] <... futex resumed>) = 0 [pid 20486] <... futex resumed>) = 1 [pid 20485] dup(4 [pid 20483] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20482] <... futex resumed>) = 0 [pid 20486] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20485] <... dup resumed>) = 5 [pid 20482] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20486] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20485] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20482] <... futex resumed>) = 0 [pid 20486] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20485] <... futex resumed>) = 1 [pid 20483] <... futex resumed>) = 0 [pid 20482] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20487] set_robust_list(0x555556ba76e0, 24 [pid 20485] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20483] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20487] <... set_robust_list resumed>) = 0 [pid 20485] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20484] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20487] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20485] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20484] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20483] <... futex resumed>) = 0 [pid 20487] <... prctl resumed>) = 0 [pid 20484] <... futex resumed>) = 1 [pid 20483] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20480] <... futex resumed>) = 0 [pid 20487] setpgid(0, 0 [pid 20484] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20480] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20487] <... setpgid resumed>) = 0 [pid 20484] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20480] <... futex resumed>) = 0 [pid 20487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20484] write(5, NULL, 176 [pid 20480] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20487] <... openat resumed>) = 3 [pid 20484] <... write resumed>) = -1 EFAULT (Bad address) [pid 20487] write(3, "1000", 4 [pid 20484] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20487] <... write resumed>) = 4 [pid 20485] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20484] <... futex resumed>) = 1 [pid 20480] <... futex resumed>) = 0 [pid 20487] close(3 [pid 20484] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20480] exit_group(0 [pid 20487] <... close resumed>) = 0 [pid 20486] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20485] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20484] <... futex resumed>) = ? [pid 20480] <... exit_group resumed>) = ? [pid 20487] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20486] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20485] <... futex resumed>) = 1 [pid 20484] +++ exited with 0 +++ [pid 20483] <... futex resumed>) = 0 [pid 20487] <... futex resumed>) = 0 [pid 20486] <... futex resumed>) = 1 [pid 20485] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20483] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20482] <... futex resumed>) = 0 [pid 20480] +++ exited with 0 +++ [pid 20487] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20486] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20485] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20483] <... futex resumed>) = 0 [pid 20482] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20487] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20486] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20485] write(5, NULL, 176 [pid 20483] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20482] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20480, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20487] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20486] write(5, NULL, 176 [pid 20485] <... write resumed>) = -1 EFAULT (Bad address) [pid 20482] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20487] <... mprotect resumed>) = 0 [pid 20486] <... write resumed>) = -1 EFAULT (Bad address) [pid 20485] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20487] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20486] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20485] <... futex resumed>) = 1 [pid 20483] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20486] <... futex resumed>) = 1 [pid 20485] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20482] <... futex resumed>) = 0 [pid 20487] <... clone resumed>, parent_tid=[20488], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20488 [pid 20486] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20483] exit_group(0 [pid 20482] exit_group(0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20487] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20486] <... futex resumed>) = ? [pid 20485] <... futex resumed>) = ? [pid 20483] <... exit_group resumed>) = ? [pid 20482] <... exit_group resumed>) = ? [pid 3607] close(3 [pid 20487] <... futex resumed>) = 0 [pid 20486] +++ exited with 0 +++ [pid 20487] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20488 attached [pid 20488] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20488] mkdir("./file0", 0777 [pid 20482] +++ exited with 0 +++ [pid 20488] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20485] +++ exited with 0 +++ [pid 20483] +++ exited with 0 +++ [pid 3607] <... close resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20489 [pid 20488] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20488] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20487] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20483, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20487] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20482, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20487] <... futex resumed>) = 0 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20487] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... restart_syscall resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20488] pipe2( [pid 3606] <... openat resumed>) = 3 [pid 20488] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20488] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20488] <... futex resumed>) = 1 [pid 20487] <... futex resumed>) = 0 [pid 3606] close(3 [pid 3604] <... openat resumed>) = 3 [pid 20488] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20489 attached [pid 20489] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20489] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20489] setpgid(0, 0 [pid 20487] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20488] <... futex resumed>) = 0 [pid 20487] <... futex resumed>) = 1 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20489] <... setpgid resumed>) = 0 [pid 20488] dup(4 [pid 20487] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20488] <... dup resumed>) = 5 [pid 3604] close(3 [pid 20489] <... openat resumed>) = 3 [pid 20488] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20490 [pid 3604] <... close resumed>) = 0 [pid 20489] write(3, "1000", 4 [pid 20488] <... futex resumed>) = 1 [pid 20487] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20490 attached [pid 20489] <... write resumed>) = 4 [pid 20488] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20487] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20490] set_robust_list(0x555556ba76e0, 24 [pid 20489] close(3 [pid 20488] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20487] <... futex resumed>) = 0 [pid 20490] <... set_robust_list resumed>) = 0 [pid 20489] <... close resumed>) = 0 [pid 20488] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20487] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20491 [pid 20489] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20489] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20489] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20489] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20492], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20492 [pid 20489] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20489] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20492 attached [pid 20492] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20492] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20492] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20492] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20489] <... futex resumed>) = 0 [pid 20489] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20492] <... futex resumed>) = 1 [pid 20489] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20492] pipe2( [pid 20490] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20492] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20490] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 20491 attached [pid 20492] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20490] setpgid(0, 0 [pid 20492] <... futex resumed>) = 1 [pid 20491] set_robust_list(0x555556ba76e0, 24 [pid 20490] <... setpgid resumed>) = 0 [pid 20489] <... futex resumed>) = 0 [pid 20492] dup(4 [pid 20491] <... set_robust_list resumed>) = 0 [pid 20490] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20489] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20492] <... dup resumed>) = 5 [pid 20489] <... futex resumed>) = 0 [pid 20492] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20491] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20490] <... openat resumed>) = 3 [pid 20489] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20492] <... futex resumed>) = 0 [pid 20491] <... prctl resumed>) = 0 [pid 20490] write(3, "1000", 4 [pid 20489] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20492] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20489] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20492] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20489] <... futex resumed>) = 0 [pid 20492] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20489] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20491] setpgid(0, 0 [pid 20490] <... write resumed>) = 4 [pid 20491] <... setpgid resumed>) = 0 [pid 20490] close(3 [pid 20488] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20491] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20490] <... close resumed>) = 0 [pid 20488] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20491] <... openat resumed>) = 3 [pid 20490] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20488] <... futex resumed>) = 1 [pid 20487] <... futex resumed>) = 0 [pid 20491] write(3, "1000", 4 [pid 20490] <... futex resumed>) = 0 [pid 20488] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20487] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20491] <... write resumed>) = 4 [pid 20490] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20488] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20487] <... futex resumed>) = 0 [pid 20491] close(3 [pid 20490] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20488] write(5, NULL, 176 [pid 20487] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20491] <... close resumed>) = 0 [pid 20490] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20488] <... write resumed>) = -1 EFAULT (Bad address) [pid 20491] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20490] <... mprotect resumed>) = 0 [pid 20488] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20491] <... futex resumed>) = 0 [pid 20490] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20488] <... futex resumed>) = 1 [pid 20487] <... futex resumed>) = 0 [pid 20492] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20491] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20488] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20487] exit_group(0 [pid 20492] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20491] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20490] <... clone resumed>, parent_tid=[20493], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20493 [pid 20488] <... futex resumed>) = ? [pid 20487] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20493 attached [pid 20492] <... futex resumed>) = 1 [pid 20491] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20490] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20489] <... futex resumed>) = 0 [pid 20488] +++ exited with 0 +++ [pid 20487] +++ exited with 0 +++ [pid 20493] set_robust_list(0x7f61a3ef39e0, 24 [pid 20492] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20491] <... mprotect resumed>) = 0 [pid 20490] <... futex resumed>) = 0 [pid 20489] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20487, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20492] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20491] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20490] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20489] <... futex resumed>) = 0 [pid 20493] <... set_robust_list resumed>) = 0 [pid 20492] write(5, NULL, 176 [pid 20489] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20493] mkdir("./file0", 0777 [pid 20492] <... write resumed>) = -1 EFAULT (Bad address) [pid 20491] <... clone resumed>, parent_tid=[20494], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20494 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20493] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20492] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20491] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20493] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20492] <... futex resumed>) = 1 [pid 20491] <... futex resumed>) = 0 [pid 20489] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20493] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20492] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20491] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20489] exit_group(0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20493] <... futex resumed>) = 1 [pid 20492] <... futex resumed>) = ? [pid 20490] <... futex resumed>) = 0 [pid 20489] <... exit_group resumed>) = ? [pid 3601] close(3./strace-static-x86_64: Process 20494 attached [pid 20493] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20492] +++ exited with 0 +++ [pid 20490] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20489] +++ exited with 0 +++ [pid 3601] <... close resumed>) = 0 [pid 20494] set_robust_list(0x7f61a3ef39e0, 24 [pid 20493] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20490] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20495 attached [pid 20494] <... set_robust_list resumed>) = 0 [pid 20493] pipe2( [pid 20490] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20489, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20494] mkdir("./file0", 0777 [pid 20493] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20495 [pid 20495] set_robust_list(0x555556ba76e0, 24 [pid 20494] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20493] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20494] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20493] <... futex resumed>) = 1 [pid 20490] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20494] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20493] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20490] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20494] <... futex resumed>) = 1 [pid 20493] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20491] <... futex resumed>) = 0 [pid 20490] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20494] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20493] dup(4 [pid 20491] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20490] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 20494] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20491] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20494] pipe2( [pid 20491] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20494] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20496 [pid 20494] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20491] <... futex resumed>) = 0 [pid 20494] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20491] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20494] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20491] <... futex resumed>) = 0 [pid 20494] dup(4 [pid 20491] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20494] <... dup resumed>) = 5 [pid 20494] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20493] <... dup resumed>) = 5 [pid 20494] <... futex resumed>) = 1 [pid 20493] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20491] <... futex resumed>) = 0 [pid 20494] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20493] <... futex resumed>) = 1 [pid 20491] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20490] <... futex resumed>) = 0 [pid 20494] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20493] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20491] <... futex resumed>) = 0 [pid 20490] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20494] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20493] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20491] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20490] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20496 attached [pid 20496] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20496] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20496] setpgid(0, 0) = 0 [pid 20496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20496] write(3, "1000", 4) = 4 [pid 20496] close(3 [pid 20490] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20496] <... close resumed>) = 0 [pid 20493] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20496] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20496] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20496] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20496] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20497], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20497 [pid 20496] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20496] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20497 attached [pid 20497] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20497] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20497] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20497] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20495] <... set_robust_list resumed>) = 0 [pid 20495] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20495] setpgid(0, 0 [pid 20496] <... futex resumed>) = 0 [pid 20496] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20496] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20497] <... futex resumed>) = 1 [pid 20497] pipe2( [pid 20495] <... setpgid resumed>) = 0 [pid 20497] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20494] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20493] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20495] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20497] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20494] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20493] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20495] <... openat resumed>) = 3 [pid 20497] <... futex resumed>) = 1 [pid 20496] <... futex resumed>) = 0 [pid 20494] <... futex resumed>) = 1 [pid 20493] <... futex resumed>) = 1 [pid 20491] <... futex resumed>) = 0 [pid 20490] <... futex resumed>) = 0 [pid 20497] dup(4 [pid 20496] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20495] write(3, "1000", 4 [pid 20494] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20493] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20491] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20490] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20497] <... dup resumed>) = 5 [pid 20496] <... futex resumed>) = 0 [pid 20495] <... write resumed>) = 4 [pid 20494] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20493] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20491] <... futex resumed>) = 0 [pid 20490] <... futex resumed>) = 0 [pid 20497] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20496] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20495] close(3 [pid 20494] write(5, NULL, 176 [pid 20493] write(5, NULL, 176 [pid 20491] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20490] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20497] <... futex resumed>) = 0 [pid 20496] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20495] <... close resumed>) = 0 [pid 20494] <... write resumed>) = -1 EFAULT (Bad address) [pid 20493] <... write resumed>) = -1 EFAULT (Bad address) [pid 20497] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20496] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20495] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20494] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20493] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20497] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20496] <... futex resumed>) = 0 [pid 20495] <... futex resumed>) = 0 [pid 20494] <... futex resumed>) = 1 [pid 20493] <... futex resumed>) = 1 [pid 20491] <... futex resumed>) = 0 [pid 20490] <... futex resumed>) = 0 [pid 20497] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20496] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20495] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20494] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20493] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20491] exit_group(0 [pid 20490] exit_group(0 [pid 20495] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20494] <... futex resumed>) = ? [pid 20491] <... exit_group resumed>) = ? [pid 20490] <... exit_group resumed>) = ? [pid 20495] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20494] +++ exited with 0 +++ [pid 20493] <... futex resumed>) = ? [pid 20491] +++ exited with 0 +++ [pid 20495] <... mprotect resumed>) = 0 [pid 20493] +++ exited with 0 +++ [pid 20490] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20491, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20495] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20490, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20495] <... clone resumed>, parent_tid=[20498], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20498 [pid 20495] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20495] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] <... openat resumed>) = 3 [pid 3606] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3 [pid 3606] close(3 [pid 3604] <... close resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20499 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20500 ./strace-static-x86_64: Process 20500 attached [pid 20500] set_robust_list(0x555556ba76e0, 24) = 0 ./strace-static-x86_64: Process 20499 attached [pid 20500] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20499] set_robust_list(0x555556ba76e0, 24./strace-static-x86_64: Process 20498 attached [pid 20500] setpgid(0, 0 [pid 20499] <... set_robust_list resumed>) = 0 [pid 20500] <... setpgid resumed>) = 0 [pid 20499] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20498] set_robust_list(0x7f61a3ef39e0, 24 [pid 20500] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20499] <... prctl resumed>) = 0 [pid 20498] <... set_robust_list resumed>) = 0 [pid 20500] <... openat resumed>) = 3 [pid 20499] setpgid(0, 0 [pid 20498] mkdir("./file0", 0777 [pid 20497] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20500] write(3, "1000", 4 [pid 20499] <... setpgid resumed>) = 0 [pid 20498] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20497] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20500] <... write resumed>) = 4 [pid 20499] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20500] close(3 [pid 20499] <... openat resumed>) = 3 [pid 20500] <... close resumed>) = 0 [pid 20499] write(3, "1000", 4 [pid 20500] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20499] <... write resumed>) = 4 [pid 20500] <... futex resumed>) = 0 [pid 20499] close(3 [pid 20497] <... futex resumed>) = 1 [pid 20496] <... futex resumed>) = 0 [pid 20500] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20499] <... close resumed>) = 0 [pid 20498] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20497] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20496] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20500] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20499] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20498] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20497] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20496] <... futex resumed>) = 0 [pid 20500] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20499] <... futex resumed>) = 0 [pid 20498] <... futex resumed>) = 1 [pid 20497] write(5, NULL, 176 [pid 20496] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20495] <... futex resumed>) = 0 [pid 20500] <... mprotect resumed>) = 0 [pid 20499] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20498] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20497] <... write resumed>) = -1 EFAULT (Bad address) [pid 20495] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20500] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20499] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20498] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20497] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20495] <... futex resumed>) = 0 [pid 20499] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20498] pipe2( [pid 20497] <... futex resumed>) = 1 [pid 20496] <... futex resumed>) = 0 [pid 20495] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20500] <... clone resumed>, parent_tid=[20501], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20501 [pid 20499] <... mprotect resumed>) = 0 [pid 20498] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20497] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20496] exit_group(0./strace-static-x86_64: Process 20501 attached [pid 20500] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20499] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20498] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20497] <... futex resumed>) = ? [pid 20496] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20502 attached [pid 20501] set_robust_list(0x7f61a3ef39e0, 24 [pid 20500] <... futex resumed>) = 0 [pid 20498] <... futex resumed>) = 1 [pid 20497] +++ exited with 0 +++ [pid 20496] +++ exited with 0 +++ [pid 20495] <... futex resumed>) = 0 [pid 20502] set_robust_list(0x7f61a3ef39e0, 24 [pid 20501] <... set_robust_list resumed>) = 0 [pid 20500] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20499] <... clone resumed>, parent_tid=[20502], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20502 [pid 20498] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20495] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20496, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20501] mkdir("./file0", 0777 [pid 20499] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20498] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20495] <... futex resumed>) = 0 [pid 20501] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20499] <... futex resumed>) = 0 [pid 20498] dup(4 [pid 20495] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20501] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20499] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20498] <... dup resumed>) = 5 [pid 20502] <... set_robust_list resumed>) = 0 [pid 20501] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20498] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20501] <... futex resumed>) = 1 [pid 20500] <... futex resumed>) = 0 [pid 20498] <... futex resumed>) = 1 [pid 20495] <... futex resumed>) = 0 [pid 20501] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20500] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20498] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20495] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20502] mkdir("./file0", 0777 [pid 20501] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20500] <... futex resumed>) = 0 [pid 20498] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20495] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20502] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20501] pipe2( [pid 20500] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20498] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20495] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20502] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20501] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20502] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20501] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20502] <... futex resumed>) = 1 [pid 20501] <... futex resumed>) = 1 [pid 20500] <... futex resumed>) = 0 [pid 20499] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20502] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20501] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20500] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20499] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 20502] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20501] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20500] <... futex resumed>) = 0 [pid 20499] <... futex resumed>) = 0 [pid 20498] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] <... close resumed>) = 0 [pid 20502] pipe2( [pid 20501] dup(4 [pid 20500] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20499] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20502] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20501] <... dup resumed>) = 5 [pid 20502] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20501] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20503 [pid 20502] <... futex resumed>) = 1 [pid 20501] <... futex resumed>) = 1 [pid 20500] <... futex resumed>) = 0 [pid 20499] <... futex resumed>) = 0 [pid 20502] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20501] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20500] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20499] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20502] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20501] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20500] <... futex resumed>) = 0 [pid 20499] <... futex resumed>) = 0 [pid 20502] dup(4 [pid 20501] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20500] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20499] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20498] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20502] <... dup resumed>) = 5 [pid 20498] <... futex resumed>) = 1 [pid 20495] <... futex resumed>) = 0 [pid 20502] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20498] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20495] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20502] <... futex resumed>) = 1 [pid 20499] <... futex resumed>) = 0 [pid 20498] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20495] <... futex resumed>) = 0 [pid 20502] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20499] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20498] write(5, NULL, 176 [pid 20495] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20502] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20499] <... futex resumed>) = 0 [pid 20498] <... write resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20503 attached [pid 20502] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20499] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20498] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20503] set_robust_list(0x555556ba76e0, 24 [pid 20498] <... futex resumed>) = 1 [pid 20495] <... futex resumed>) = 0 [pid 20498] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20495] exit_group(0 [pid 20503] <... set_robust_list resumed>) = 0 [pid 20501] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20498] <... futex resumed>) = ? [pid 20495] <... exit_group resumed>) = ? [pid 20503] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20498] +++ exited with 0 +++ [pid 20495] +++ exited with 0 +++ [pid 20503] <... prctl resumed>) = 0 [pid 20503] setpgid(0, 0 [pid 20501] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20495, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20503] <... setpgid resumed>) = 0 [pid 20501] <... futex resumed>) = 1 [pid 20500] <... futex resumed>) = 0 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20500] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20503] <... openat resumed>) = 3 [pid 20503] write(3, "1000", 4) = 4 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20503] close(3 [pid 3601] <... openat resumed>) = 3 [pid 20503] <... close resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20503] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20503] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20503] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] <... close resumed>) = 0 [pid 20503] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20503] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20501] write(5, NULL, 176 [pid 20500] <... futex resumed>) = 0 [pid 20503] <... mprotect resumed>) = 0 [pid 20501] <... write resumed>) = -1 EFAULT (Bad address) [pid 20500] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20504 ./strace-static-x86_64: Process 20504 attached [pid 20503] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20501] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20503] <... clone resumed>, parent_tid=[20505], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20505 [pid 20502] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20501] <... futex resumed>) = 1 [pid 20500] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20505 attached [pid 20504] set_robust_list(0x555556ba76e0, 24 [pid 20503] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20502] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20501] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20500] exit_group(0 [pid 20505] set_robust_list(0x7f61a3ef39e0, 24 [pid 20504] <... set_robust_list resumed>) = 0 [pid 20503] <... futex resumed>) = 0 [pid 20502] <... futex resumed>) = 1 [pid 20501] <... futex resumed>) = ? [pid 20500] <... exit_group resumed>) = ? [pid 20499] <... futex resumed>) = 0 [pid 20505] <... set_robust_list resumed>) = 0 [pid 20504] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20503] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20502] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20501] +++ exited with 0 +++ [pid 20505] mkdir("./file0", 0777 [pid 20504] <... prctl resumed>) = 0 [pid 20502] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20500] +++ exited with 0 +++ [pid 20499] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20505] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20504] setpgid(0, 0 [pid 20502] write(5, NULL, 176 [pid 20499] <... futex resumed>) = 0 [pid 20505] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20504] <... setpgid resumed>) = 0 [pid 20502] <... write resumed>) = -1 EFAULT (Bad address) [pid 20499] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20500, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20505] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20502] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20499] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20505] <... futex resumed>) = 1 [pid 20504] <... openat resumed>) = 3 [pid 20503] <... futex resumed>) = 0 [pid 20502] <... futex resumed>) = 0 [pid 20499] exit_group(0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20505] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20504] write(3, "1000", 4 [pid 20503] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20499] <... exit_group resumed>) = ? [pid 20505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20504] <... write resumed>) = 4 [pid 20503] <... futex resumed>) = 0 [pid 20502] +++ exited with 0 +++ [pid 20503] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20499] +++ exited with 0 +++ [pid 20504] close(3 [pid 20505] pipe2( [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20499, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20505] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20504] <... close resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20505] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20504] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20505] <... futex resumed>) = 1 [pid 20504] <... futex resumed>) = 0 [pid 20503] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20505] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20503] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20504] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20503] <... futex resumed>) = 0 [pid 3606] close(3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20505] dup(4 [pid 20504] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20503] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... close resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20506 ./strace-static-x86_64: Process 20506 attached [pid 20506] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20506] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20506] setpgid(0, 0) = 0 [pid 20506] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20506] write(3, "1000", 4) = 4 [pid 20506] close(3) = 0 [pid 20506] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20506] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20506] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20506] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20505] <... dup resumed>) = 5 [pid 20504] <... mprotect resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20505] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20504] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20506] <... clone resumed>, parent_tid=[20507], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20507 [pid 20506] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20505] <... futex resumed>) = 1 [pid 20503] <... futex resumed>) = 0 [pid 20506] <... futex resumed>) = 0 [pid 20505] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20504] <... clone resumed>, parent_tid=[20509], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20509 [pid 20503] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20508 [pid 20506] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20504] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20503] <... futex resumed>) = 0 [pid 20505] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20504] <... futex resumed>) = 0 [pid 20503] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20509 attached ./strace-static-x86_64: Process 20508 attached ./strace-static-x86_64: Process 20507 attached [pid 20509] set_robust_list(0x7f61a3ef39e0, 24 [pid 20504] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20509] <... set_robust_list resumed>) = 0 [pid 20509] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20509] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20507] set_robust_list(0x7f61a3ef39e0, 24 [pid 20509] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20507] <... set_robust_list resumed>) = 0 [pid 20509] <... futex resumed>) = 1 [pid 20507] mkdir("./file0", 0777 [pid 20504] <... futex resumed>) = 0 [pid 20509] pipe2( [pid 20507] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20504] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20509] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20507] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20509] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20508] set_robust_list(0x555556ba76e0, 24 [pid 20507] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20509] <... futex resumed>) = 0 [pid 20508] <... set_robust_list resumed>) = 0 [pid 20507] <... futex resumed>) = 1 [pid 20506] <... futex resumed>) = 0 [pid 20509] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20508] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20507] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20506] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20508] <... prctl resumed>) = 0 [pid 20507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20506] <... futex resumed>) = 0 [pid 20508] setpgid(0, 0 [pid 20507] pipe2( [pid 20506] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20508] <... setpgid resumed>) = 0 [pid 20507] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20507] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20509] <... futex resumed>) = 0 [pid 20504] <... futex resumed>) = 1 [pid 20509] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20508] <... openat resumed>) = 3 [pid 20507] <... futex resumed>) = 1 [pid 20506] <... futex resumed>) = 0 [pid 20504] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20508] write(3, "1000", 4 [pid 20507] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20506] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20505] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20504] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20508] <... write resumed>) = 4 [pid 20507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20506] <... futex resumed>) = 0 [pid 20505] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20504] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20509] <... futex resumed>) = 0 [pid 20508] close(3 [pid 20507] dup(4 [pid 20506] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20505] <... futex resumed>) = 1 [pid 20504] <... futex resumed>) = 1 [pid 20503] <... futex resumed>) = 0 [pid 20509] dup(4 [pid 20508] <... close resumed>) = 0 [pid 20507] <... dup resumed>) = 5 [pid 20505] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20504] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20503] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20509] <... dup resumed>) = 5 [pid 20508] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20507] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20503] <... futex resumed>) = 0 [pid 20509] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20508] <... futex resumed>) = 0 [pid 20507] <... futex resumed>) = 1 [pid 20506] <... futex resumed>) = 0 [pid 20505] write(5, NULL, 176 [pid 20503] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20509] <... futex resumed>) = 1 [pid 20508] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20507] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20506] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20505] <... write resumed>) = -1 EFAULT (Bad address) [pid 20504] <... futex resumed>) = 0 [pid 20509] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20508] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20506] <... futex resumed>) = 0 [pid 20505] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20504] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20509] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20508] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20507] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20506] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20505] <... futex resumed>) = 1 [pid 20504] <... futex resumed>) = 0 [pid 20503] <... futex resumed>) = 0 [pid 20509] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20508] <... mprotect resumed>) = 0 [pid 20505] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20504] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20503] exit_group(0 [pid 20508] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20505] <... futex resumed>) = ? [pid 20503] <... exit_group resumed>) = ? [pid 20505] +++ exited with 0 +++ [pid 20503] +++ exited with 0 +++ ./strace-static-x86_64: Process 20510 attached [pid 20510] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20510] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20503, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20508] <... clone resumed>, parent_tid=[20510], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20510 [pid 20508] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20508] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20510] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 20510] mkdir("./file0", 0777 [pid 3607] <... close resumed>) = 0 [pid 20510] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20510] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20510] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20508] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20511 [pid 20510] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20508] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20510] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20507] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20508] <... futex resumed>) = 0 [pid 20510] pipe2( [pid 20508] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20507] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20511 attached [pid 20510] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20509] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20507] <... futex resumed>) = 1 [pid 20511] set_robust_list(0x555556ba76e0, 24 [pid 20510] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20509] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20507] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20506] <... futex resumed>) = 0 [pid 20511] <... set_robust_list resumed>) = 0 [pid 20509] <... futex resumed>) = 1 [pid 20506] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20511] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20509] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20507] <... futex resumed>) = 0 [pid 20506] <... futex resumed>) = 1 [pid 20511] <... prctl resumed>) = 0 [pid 20507] write(5, NULL, 176 [pid 20506] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20504] <... futex resumed>) = 0 [pid 20511] setpgid(0, 0 [pid 20510] <... futex resumed>) = 1 [pid 20508] <... futex resumed>) = 0 [pid 20507] <... write resumed>) = -1 EFAULT (Bad address) [pid 20504] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20511] <... setpgid resumed>) = 0 [pid 20510] dup(4 [pid 20509] <... futex resumed>) = 0 [pid 20508] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20507] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20504] <... futex resumed>) = 1 [pid 20511] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20510] <... dup resumed>) = 5 [pid 20509] write(5, NULL, 176 [pid 20508] <... futex resumed>) = 0 [pid 20507] <... futex resumed>) = 1 [pid 20506] <... futex resumed>) = 0 [pid 20504] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20511] <... openat resumed>) = 3 [pid 20510] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20509] <... write resumed>) = -1 EFAULT (Bad address) [pid 20508] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20507] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20506] exit_group(0 [pid 20511] write(3, "1000", 4 [pid 20510] <... futex resumed>) = 0 [pid 20509] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20508] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20507] <... futex resumed>) = ? [pid 20506] <... exit_group resumed>) = ? [pid 20511] <... write resumed>) = 4 [pid 20510] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20509] <... futex resumed>) = 1 [pid 20508] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20507] +++ exited with 0 +++ [pid 20504] <... futex resumed>) = 0 [pid 20511] close(3 [pid 20510] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20509] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20508] <... futex resumed>) = 0 [pid 20506] +++ exited with 0 +++ [pid 20504] exit_group(0 [pid 20511] <... close resumed>) = 0 [pid 20510] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20509] <... futex resumed>) = ? [pid 20508] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20504] <... exit_group resumed>) = ? [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20506, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20511] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20509] +++ exited with 0 +++ [pid 20511] <... futex resumed>) = 0 [pid 20511] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20511] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20504] +++ exited with 0 +++ [pid 3604] <... openat resumed>) = 3 [pid 20511] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20504, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20511] <... mprotect resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20511] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] close(3) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20511] <... clone resumed>, parent_tid=[20512], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20512 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... openat resumed>) = 3 [pid 20511] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20511] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20513 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20511] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20514 ./strace-static-x86_64: Process 20512 attached [pid 20512] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20512] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20512] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20512] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20511] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20514 attached [pid 20512] pipe2( [pid 20511] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20510] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20514] set_robust_list(0x555556ba76e0, 24 [pid 20512] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20511] <... futex resumed>) = 0 [pid 20510] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20513 attached [pid 20514] <... set_robust_list resumed>) = 0 [pid 20512] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20511] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20510] <... futex resumed>) = 1 [pid 20508] <... futex resumed>) = 0 [pid 20514] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20512] <... futex resumed>) = 0 [pid 20511] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20510] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20508] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20514] <... prctl resumed>) = 0 [pid 20513] set_robust_list(0x555556ba76e0, 24 [pid 20512] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20511] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20510] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20508] <... futex resumed>) = 0 [pid 20514] setpgid(0, 0 [pid 20513] <... set_robust_list resumed>) = 0 [pid 20512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20511] <... futex resumed>) = 0 [pid 20510] write(5, NULL, 176 [pid 20508] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20514] <... setpgid resumed>) = 0 [pid 20513] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20512] dup(4 [pid 20511] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20510] <... write resumed>) = -1 EFAULT (Bad address) [pid 20514] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20513] <... prctl resumed>) = 0 [pid 20512] <... dup resumed>) = 5 [pid 20510] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20514] <... openat resumed>) = 3 [pid 20513] setpgid(0, 0 [pid 20512] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20510] <... futex resumed>) = 1 [pid 20508] <... futex resumed>) = 0 [pid 20514] write(3, "1000", 4 [pid 20513] <... setpgid resumed>) = 0 [pid 20512] <... futex resumed>) = 1 [pid 20511] <... futex resumed>) = 0 [pid 20510] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20508] exit_group(0 [pid 20514] <... write resumed>) = 4 [pid 20513] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20512] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20511] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20510] <... futex resumed>) = ? [pid 20508] <... exit_group resumed>) = ? [pid 20514] close(3 [pid 20512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20511] <... futex resumed>) = 0 [pid 20510] +++ exited with 0 +++ [pid 20514] <... close resumed>) = 0 [pid 20512] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20511] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20514] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20513] <... openat resumed>) = 3 [pid 20508] +++ exited with 0 +++ [pid 20513] write(3, "1000", 4 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20508, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20514] <... futex resumed>) = 0 [pid 20513] <... write resumed>) = 4 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20514] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20513] close(3 [pid 20514] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20514] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20513] <... close resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20514] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20513] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20513] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20513] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] <... openat resumed>) = 3 [pid 20513] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20513] <... mprotect resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20513] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] close(3./strace-static-x86_64: Process 20516 attached ./strace-static-x86_64: Process 20515 attached ) = 0 [pid 20512] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20516] set_robust_list(0x7f61a3ef39e0, 24 [pid 20515] set_robust_list(0x7f61a3ef39e0, 24 [pid 20514] <... clone resumed>, parent_tid=[20516], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20516 [pid 20513] <... clone resumed>, parent_tid=[20515], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20515 [pid 20512] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20516] <... set_robust_list resumed>) = 0 [pid 20515] <... set_robust_list resumed>) = 0 [pid 20514] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20513] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20512] <... futex resumed>) = 1 [pid 20511] <... futex resumed>) = 0 [pid 20516] mkdir("./file0", 0777 [pid 20515] mkdir("./file0", 0777 [pid 20514] <... futex resumed>) = 0 [pid 20513] <... futex resumed>) = 0 [pid 20512] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20511] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20516] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20515] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20514] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20511] <... futex resumed>) = 0 [pid 20516] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20515] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20512] write(5, NULL, 176 [pid 20511] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20516] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20515] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20512] <... write resumed>) = -1 EFAULT (Bad address) [pid 20516] <... futex resumed>) = 1 [pid 20515] <... futex resumed>) = 0 [pid 20514] <... futex resumed>) = 0 [pid 20512] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20516] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20515] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20514] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20513] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20512] <... futex resumed>) = 1 [pid 20511] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20517 ./strace-static-x86_64: Process 20517 attached [pid 20516] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20514] <... futex resumed>) = 0 [pid 20513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20512] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20511] exit_group(0 [pid 20517] set_robust_list(0x555556ba76e0, 24 [pid 20516] pipe2( [pid 20514] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20513] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20512] <... futex resumed>) = ? [pid 20511] <... exit_group resumed>) = ? [pid 20517] <... set_robust_list resumed>) = 0 [pid 20516] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20515] <... futex resumed>) = 0 [pid 20513] <... futex resumed>) = 1 [pid 20512] +++ exited with 0 +++ [pid 20517] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20513] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20517] <... prctl resumed>) = 0 [pid 20516] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20515] pipe2( [pid 20511] +++ exited with 0 +++ [pid 20517] setpgid(0, 0 [pid 20516] <... futex resumed>) = 1 [pid 20515] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20514] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20511, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20517] <... setpgid resumed>) = 0 [pid 20516] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20515] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20514] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20516] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20515] <... futex resumed>) = 1 [pid 20514] <... futex resumed>) = 0 [pid 20513] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20517] <... openat resumed>) = 3 [pid 20516] dup(4 [pid 20515] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20514] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20513] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20517] write(3, "1000", 4 [pid 20516] <... dup resumed>) = 5 [pid 20515] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20513] <... futex resumed>) = 0 [pid 20517] <... write resumed>) = 4 [pid 20516] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20515] dup(4 [pid 20513] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20517] close(3 [pid 20516] <... futex resumed>) = 1 [pid 20515] <... dup resumed>) = 5 [pid 20514] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20517] <... close resumed>) = 0 [pid 20516] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20515] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20514] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20517] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20516] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20515] <... futex resumed>) = 1 [pid 20514] <... futex resumed>) = 0 [pid 20513] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20517] <... futex resumed>) = 0 [pid 20516] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20515] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20514] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20513] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 20517] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20515] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20513] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20517] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20515] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20513] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20517] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20516] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20518 [pid 20517] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20519], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20519 [pid 20517] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20516] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20517] <... futex resumed>) = 0 [pid 20516] <... futex resumed>) = 1 [pid 20514] <... futex resumed>) = 0 [pid 20517] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20516] write(5, NULL, 176 [pid 20514] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20519 attached ./strace-static-x86_64: Process 20518 attached [pid 20516] <... write resumed>) = -1 EFAULT (Bad address) [pid 20515] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20514] <... futex resumed>) = 0 [pid 20519] set_robust_list(0x7f61a3ef39e0, 24 [pid 20518] set_robust_list(0x555556ba76e0, 24 [pid 20516] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20515] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20514] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20519] <... set_robust_list resumed>) = 0 [pid 20518] <... set_robust_list resumed>) = 0 [pid 20516] <... futex resumed>) = 0 [pid 20515] <... futex resumed>) = 1 [pid 20514] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20513] <... futex resumed>) = 0 [pid 20519] mkdir("./file0", 0777 [pid 20518] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20516] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20515] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20514] exit_group(0 [pid 20513] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20519] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20518] <... prctl resumed>) = 0 [pid 20516] <... futex resumed>) = ? [pid 20515] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20514] <... exit_group resumed>) = ? [pid 20513] <... futex resumed>) = 0 [pid 20519] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20518] setpgid(0, 0 [pid 20516] +++ exited with 0 +++ [pid 20515] write(5, NULL, 176 [pid 20513] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20519] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20518] <... setpgid resumed>) = 0 [pid 20515] <... write resumed>) = -1 EFAULT (Bad address) [pid 20514] +++ exited with 0 +++ [pid 20519] <... futex resumed>) = 1 [pid 20518] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20517] <... futex resumed>) = 0 [pid 20515] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20519] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20518] <... openat resumed>) = 3 [pid 20517] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20515] <... futex resumed>) = 1 [pid 20513] <... futex resumed>) = 0 [pid 20519] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20518] write(3, "1000", 4 [pid 20517] <... futex resumed>) = 0 [pid 20515] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20513] exit_group(0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20514, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20519] pipe2( [pid 20518] <... write resumed>) = 4 [pid 20517] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20515] <... futex resumed>) = ? [pid 20513] <... exit_group resumed>) = ? [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20519] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20518] close(3 [pid 20515] +++ exited with 0 +++ [pid 20519] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20518] <... close resumed>) = 0 [pid 20519] <... futex resumed>) = 1 [pid 20518] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20519] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20518] <... futex resumed>) = 0 [pid 20513] +++ exited with 0 +++ [pid 20518] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20517] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20513, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3601] <... openat resumed>) = 3 [pid 20518] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20517] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20519] <... futex resumed>) = 0 [pid 20518] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20517] <... futex resumed>) = 1 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20519] dup(4 [pid 20518] <... mprotect resumed>) = 0 [pid 20517] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20519] <... dup resumed>) = 5 [pid 20518] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] close(3 [pid 20519] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] <... close resumed>) = 0 [pid 20519] <... futex resumed>) = 1 [pid 20518] <... clone resumed>, parent_tid=[20520], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20520 [pid 20517] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20519] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20518] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20517] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20519] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20518] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20519] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20518] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20517] <... futex resumed>) = 0 [pid 3604] close(3./strace-static-x86_64: Process 20521 attached ./strace-static-x86_64: Process 20520 attached [pid 20517] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... close resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20521 [pid 20521] set_robust_list(0x555556ba76e0, 24 [pid 20520] set_robust_list(0x7f61a3ef39e0, 24 [pid 20519] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20521] <... set_robust_list resumed>) = 0 [pid 20520] <... set_robust_list resumed>) = 0 [pid 20519] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20522 attached [pid 20520] mkdir("./file0", 0777 [pid 20519] <... futex resumed>) = 1 [pid 20517] <... futex resumed>) = 0 [pid 20522] set_robust_list(0x555556ba76e0, 24 [pid 20521] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20520] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20519] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20517] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20522 [pid 20522] <... set_robust_list resumed>) = 0 [pid 20521] <... prctl resumed>) = 0 [pid 20520] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20519] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20517] <... futex resumed>) = 0 [pid 20522] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20520] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20519] write(5, NULL, 176 [pid 20517] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20521] setpgid(0, 0 [pid 20522] <... prctl resumed>) = 0 [pid 20521] <... setpgid resumed>) = 0 [pid 20520] <... futex resumed>) = 1 [pid 20519] <... write resumed>) = -1 EFAULT (Bad address) [pid 20518] <... futex resumed>) = 0 [pid 20520] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20519] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20518] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20522] setpgid(0, 0 [pid 20521] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20522] <... setpgid resumed>) = 0 [pid 20520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20519] <... futex resumed>) = 1 [pid 20518] <... futex resumed>) = 0 [pid 20517] <... futex resumed>) = 0 [pid 20522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20521] <... openat resumed>) = 3 [pid 20520] pipe2( [pid 20519] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20518] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20517] exit_group(0 [pid 20520] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20519] <... futex resumed>) = ? [pid 20517] <... exit_group resumed>) = ? [pid 20522] <... openat resumed>) = 3 [pid 20521] write(3, "1000", 4 [pid 20522] write(3, "1000", 4 [pid 20521] <... write resumed>) = 4 [pid 20520] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20519] +++ exited with 0 +++ [pid 20522] <... write resumed>) = 4 [pid 20521] close(3 [pid 20520] <... futex resumed>) = 1 [pid 20518] <... futex resumed>) = 0 [pid 20517] +++ exited with 0 +++ [pid 20522] close(3 [pid 20521] <... close resumed>) = 0 [pid 20520] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20518] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20517, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20522] <... close resumed>) = 0 [pid 20521] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20518] <... futex resumed>) = 0 [pid 20522] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20521] <... futex resumed>) = 0 [pid 20520] dup(4 [pid 20518] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20522] <... futex resumed>) = 0 [pid 20521] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20520] <... dup resumed>) = 5 [pid 20522] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20521] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20520] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20522] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20521] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20520] <... futex resumed>) = 1 [pid 20518] <... futex resumed>) = 0 [pid 20522] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20521] <... mprotect resumed>) = 0 [pid 20520] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20518] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20522] <... mprotect resumed>) = 0 [pid 20521] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20518] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 20523 attached [pid 20522] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20520] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20518] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20524 attached [pid 20523] set_robust_list(0x7f61a3ef39e0, 24 [pid 20521] <... clone resumed>, parent_tid=[20523], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20523 [pid 20524] set_robust_list(0x7f61a3ef39e0, 24 [pid 20523] <... set_robust_list resumed>) = 0 [pid 20521] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20522] <... clone resumed>, parent_tid=[20524], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20524 [pid 20524] <... set_robust_list resumed>) = 0 [pid 20523] mkdir("./file0", 0777 [pid 20522] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20521] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20524] mkdir("./file0", 0777 [pid 20523] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20522] <... futex resumed>) = 0 [pid 20521] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20520] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] close(3 [pid 20524] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20523] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20522] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20520] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20524] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20523] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20524] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20523] <... futex resumed>) = 1 [pid 20521] <... futex resumed>) = 0 [pid 20520] <... futex resumed>) = 1 [pid 20518] <... futex resumed>) = 0 [pid 20524] <... futex resumed>) = 1 [pid 20523] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20522] <... futex resumed>) = 0 [pid 20521] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20520] write(5, NULL, 176 [pid 20518] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20524] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20522] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20521] <... futex resumed>) = 0 [pid 20520] <... write resumed>) = -1 EFAULT (Bad address) [pid 20518] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20525 [pid 20524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20523] pipe2( [pid 20522] <... futex resumed>) = 0 [pid 20521] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20520] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20518] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20524] pipe2( [pid 20523] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20522] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20520] <... futex resumed>) = 0 [pid 20518] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20524] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20523] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20524] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20523] <... futex resumed>) = 1 [pid 20524] <... futex resumed>) = 0 [pid 20523] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20524] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20525 attached [pid 20525] set_robust_list(0x555556ba76e0, 24 [pid 20522] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20518] exit_group(0 [pid 20521] <... futex resumed>) = 0 [pid 20520] read(0, [pid 20525] <... set_robust_list resumed>) = 0 [pid 20522] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20521] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20520] +++ exited with 0 +++ [pid 20518] <... exit_group resumed>) = ? [pid 20525] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20524] <... futex resumed>) = 0 [pid 20523] <... futex resumed>) = 0 [pid 20522] <... futex resumed>) = 1 [pid 20521] <... futex resumed>) = 1 [pid 20525] <... prctl resumed>) = 0 [pid 20524] dup(4 [pid 20523] dup(4 [pid 20522] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20521] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20518] +++ exited with 0 +++ [pid 20525] setpgid(0, 0 [pid 20524] <... dup resumed>) = 5 [pid 20523] <... dup resumed>) = 5 [pid 20525] <... setpgid resumed>) = 0 [pid 20524] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20523] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20518, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20525] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20524] <... futex resumed>) = 1 [pid 20523] <... futex resumed>) = 1 [pid 20522] <... futex resumed>) = 0 [pid 20521] <... futex resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20524] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20523] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20522] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20521] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20522] <... futex resumed>) = 0 [pid 20521] <... futex resumed>) = 0 [pid 20525] <... openat resumed>) = 3 [pid 20524] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20523] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20522] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20521] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20525] write(3, "1000", 4 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20526 [pid 20525] <... write resumed>) = 4 [pid 20523] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20525] close(3) = 0 [pid 20523] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20521] <... futex resumed>) = 0 [pid 20525] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20523] <... futex resumed>) = 1 [pid 20521] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20525] <... futex resumed>) = 0 [pid 20523] write(5, NULL, 176 [pid 20521] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20523] <... write resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20526 attached [pid 20525] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20523] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20526] set_robust_list(0x555556ba76e0, 24 [pid 20523] <... futex resumed>) = 1 [pid 20521] <... futex resumed>) = 0 [pid 20526] <... set_robust_list resumed>) = 0 [pid 20521] exit_group(0 [pid 20526] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20521] <... exit_group resumed>) = ? [pid 20526] <... prctl resumed>) = 0 [pid 20526] setpgid(0, 0) = 0 [pid 20526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20523] +++ exited with 0 +++ [pid 20524] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20521] +++ exited with 0 +++ [pid 20526] write(3, "1000", 4 [pid 20525] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20524] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20526] <... write resumed>) = 4 [pid 20525] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20524] <... futex resumed>) = 1 [pid 20522] <... futex resumed>) = 0 [pid 20526] close(3 [pid 20525] <... mprotect resumed>) = 0 [pid 20524] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20522] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20521, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20526] <... close resumed>) = 0 [pid 20525] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20522] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 20527 attached [pid 20526] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20524] write(5, NULL, 176 [pid 20522] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20527] set_robust_list(0x7f61a3ef39e0, 24 [pid 20526] <... futex resumed>) = 0 [pid 20525] <... clone resumed>, parent_tid=[20527], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20527 [pid 20524] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] <... openat resumed>) = 3 [pid 20527] <... set_robust_list resumed>) = 0 [pid 20526] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20525] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20524] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20527] mkdir("./file0", 0777 [pid 20526] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20525] <... futex resumed>) = 0 [pid 20524] <... futex resumed>) = 1 [pid 20522] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20527] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20526] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20525] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20524] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20522] exit_group(0 [pid 3601] close(3 [pid 20527] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20526] <... mprotect resumed>) = 0 [pid 20524] <... futex resumed>) = ? [pid 20522] <... exit_group resumed>) = ? [pid 3601] <... close resumed>) = 0 [pid 20527] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20526] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20524] +++ exited with 0 +++ [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20528 attached [pid 20527] <... futex resumed>) = 1 [pid 20525] <... futex resumed>) = 0 [pid 20522] +++ exited with 0 +++ ./strace-static-x86_64: Process 20529 attached [pid 20528] set_robust_list(0x7f61a3ef39e0, 24 [pid 20527] pipe2( [pid 20526] <... clone resumed>, parent_tid=[20528], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20528 [pid 20525] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20529] set_robust_list(0x555556ba76e0, 24 [pid 20528] <... set_robust_list resumed>) = 0 [pid 20527] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20526] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20525] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20529 [pid 20529] <... set_robust_list resumed>) = 0 [pid 20528] mkdir("./file0", 0777 [pid 20527] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20526] <... futex resumed>) = 0 [pid 20525] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20522, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20529] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20528] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20527] <... futex resumed>) = 0 [pid 20526] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20525] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20529] <... prctl resumed>) = 0 [pid 20528] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20527] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20525] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20529] setpgid(0, 0 [pid 20528] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20525] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20529] <... setpgid resumed>) = 0 [pid 20528] <... futex resumed>) = 1 [pid 20527] dup(4 [pid 20526] <... futex resumed>) = 0 [pid 20525] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20528] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20527] <... dup resumed>) = 5 [pid 20526] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20529] <... openat resumed>) = 3 [pid 20528] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20527] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20526] <... futex resumed>) = 0 [pid 3604] close(3 [pid 20529] write(3, "1000", 4 [pid 20528] pipe2( [pid 20527] <... futex resumed>) = 1 [pid 20526] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20525] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20529] <... write resumed>) = 4 [pid 20528] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20527] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20525] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20529] close(3 [pid 20528] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20525] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20530 attached [pid 20529] <... close resumed>) = 0 [pid 20528] <... futex resumed>) = 1 [pid 20527] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20526] <... futex resumed>) = 0 [pid 20525] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20530] set_robust_list(0x555556ba76e0, 24 [pid 20529] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20528] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20530 [pid 20530] <... set_robust_list resumed>) = 0 [pid 20529] <... futex resumed>) = 0 [pid 20528] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20526] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20528] dup(4 [pid 20530] <... prctl resumed>) = 0 [pid 20529] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20528] <... dup resumed>) = 5 [pid 20526] <... futex resumed>) = 0 [pid 20530] setpgid(0, 0 [pid 20528] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20530] <... setpgid resumed>) = 0 [pid 20528] <... futex resumed>) = 0 [pid 20530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20528] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20530] <... openat resumed>) = 3 [pid 20529] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20526] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20530] write(3, "1000", 4 [pid 20529] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20526] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20530] <... write resumed>) = 4 [pid 20529] <... mprotect resumed>) = 0 [pid 20526] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20530] close(3 [pid 20528] <... futex resumed>) = 0 [pid 20526] <... futex resumed>) = 1 [pid 20530] <... close resumed>) = 0 [pid 20529] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20528] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20526] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20530] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20530] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20530] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20530] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20529] <... clone resumed>, parent_tid=[20531], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20531 [pid 20530] <... clone resumed>, parent_tid=[20532], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20532 [pid 20529] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20530] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20529] <... futex resumed>) = 0 [pid 20530] <... futex resumed>) = 0 [pid 20529] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20530] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20531 attached [pid 20531] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20531] mkdir("./file0", 0777./strace-static-x86_64: Process 20532 attached [pid 20527] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20532] set_robust_list(0x7f61a3ef39e0, 24 [pid 20527] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20532] <... set_robust_list resumed>) = 0 [pid 20527] <... futex resumed>) = 1 [pid 20532] mkdir("./file0", 0777 [pid 20527] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20532] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20532] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20532] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20530] <... futex resumed>) = 0 [pid 20525] <... futex resumed>) = 0 [pid 20532] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20530] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20525] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20532] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20530] <... futex resumed>) = 0 [pid 20527] <... futex resumed>) = 0 [pid 20525] <... futex resumed>) = 1 [pid 20528] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20532] pipe2( [pid 20531] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20530] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20527] write(5, NULL, 176 [pid 20525] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20532] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20528] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20527] <... write resumed>) = -1 EFAULT (Bad address) [pid 20532] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20527] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20532] <... futex resumed>) = 1 [pid 20530] <... futex resumed>) = 0 [pid 20528] <... futex resumed>) = 1 [pid 20527] <... futex resumed>) = 1 [pid 20526] <... futex resumed>) = 0 [pid 20525] <... futex resumed>) = 0 [pid 20532] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20531] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20530] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20528] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20527] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20526] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20525] exit_group(0 [pid 20532] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20531] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20530] <... futex resumed>) = 0 [pid 20528] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20527] <... futex resumed>) = ? [pid 20526] <... futex resumed>) = 0 [pid 20525] <... exit_group resumed>) = ? [pid 20532] dup(4 [pid 20530] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20528] write(5, NULL, 176 [pid 20527] +++ exited with 0 +++ [pid 20526] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20532] <... dup resumed>) = 5 [pid 20532] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20528] <... write resumed>) = -1 EFAULT (Bad address) [pid 20525] +++ exited with 0 +++ [pid 20531] <... futex resumed>) = 1 [pid 20529] <... futex resumed>) = 0 [pid 20532] <... futex resumed>) = 1 [pid 20530] <... futex resumed>) = 0 [pid 20529] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20528] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20531] pipe2( [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20525, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20532] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20531] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20530] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20529] <... futex resumed>) = 0 [pid 20528] <... futex resumed>) = 1 [pid 20526] <... futex resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20532] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20531] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20530] <... futex resumed>) = 0 [pid 20529] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20528] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20526] exit_group(0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20532] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20531] <... futex resumed>) = 0 [pid 20530] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20529] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20528] <... futex resumed>) = ? [pid 20526] <... exit_group resumed>) = ? [pid 20531] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20529] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20528] +++ exited with 0 +++ [pid 20526] +++ exited with 0 +++ [pid 20531] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20529] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20526, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20531] dup(4) = 5 [pid 20529] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20531] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20531] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20529] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] <... openat resumed>) = 3 [pid 20532] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20529] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20532] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20531] <... futex resumed>) = 0 [pid 20529] <... futex resumed>) = 1 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20532] <... futex resumed>) = 1 [pid 20531] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20530] <... futex resumed>) = 0 [pid 20529] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 20532] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20530] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] <... close resumed>) = 0 [pid 20530] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20530] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20533 [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20534 ./strace-static-x86_64: Process 20534 attached ./strace-static-x86_64: Process 20533 attached [pid 20533] set_robust_list(0x555556ba76e0, 24 [pid 20534] set_robust_list(0x555556ba76e0, 24 [pid 20533] <... set_robust_list resumed>) = 0 [pid 20534] <... set_robust_list resumed>) = 0 [pid 20532] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20531] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20534] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20533] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20532] write(5, NULL, 176 [pid 20531] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20534] <... prctl resumed>) = 0 [pid 20533] <... prctl resumed>) = 0 [pid 20532] <... write resumed>) = -1 EFAULT (Bad address) [pid 20534] setpgid(0, 0 [pid 20533] setpgid(0, 0 [pid 20532] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20534] <... setpgid resumed>) = 0 [pid 20533] <... setpgid resumed>) = 0 [pid 20534] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20533] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20532] <... futex resumed>) = 1 [pid 20531] <... futex resumed>) = 1 [pid 20530] <... futex resumed>) = 0 [pid 20529] <... futex resumed>) = 0 [pid 20534] <... openat resumed>) = 3 [pid 20533] <... openat resumed>) = 3 [pid 20530] exit_group(0 [pid 20529] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20534] write(3, "1000", 4 [pid 20533] write(3, "1000", 4 [pid 20530] <... exit_group resumed>) = ? [pid 20529] <... futex resumed>) = 0 [pid 20534] <... write resumed>) = 4 [pid 20533] <... write resumed>) = 4 [pid 20529] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20534] close(3 [pid 20533] close(3 [pid 20531] write(5, NULL, 176 [pid 20534] <... close resumed>) = 0 [pid 20533] <... close resumed>) = 0 [pid 20534] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20533] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20534] <... futex resumed>) = 0 [pid 20533] <... futex resumed>) = 0 [pid 20534] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20533] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20534] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20533] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20532] +++ exited with 0 +++ [pid 20530] +++ exited with 0 +++ [pid 20531] <... write resumed>) = -1 EFAULT (Bad address) [pid 20534] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20533] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20534] <... mprotect resumed>) = 0 [pid 20533] <... mprotect resumed>) = 0 [pid 20531] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20534] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20533] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20531] <... futex resumed>) = 1 [pid 20529] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20530, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20531] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20529] exit_group(0 [pid 20534] <... clone resumed>, parent_tid=[20535], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20535 [pid 20533] <... clone resumed>, parent_tid=[20536], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20536 [pid 20531] <... futex resumed>) = ? [pid 20529] <... exit_group resumed>) = ? [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20534] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20533] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20531] +++ exited with 0 +++ [pid 20529] +++ exited with 0 +++ [pid 3604] <... openat resumed>) = 3 [pid 20534] <... futex resumed>) = 0 [pid 20533] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20529, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20534] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20533] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3604] <... close resumed>) = 0 [pid 3601] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20535 attached [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20535] set_robust_list(0x7f61a3ef39e0, 24 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20535] <... set_robust_list resumed>) = 0 [pid 3601] close(3 [pid 20535] mkdir("./file0", 0777 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20537 [pid 3601] <... close resumed>) = 0 [pid 20535] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20535] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20535] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20538 [pid 20535] <... futex resumed>) = 1 [pid 20534] <... futex resumed>) = 0 [pid 20535] pipe2( [pid 20534] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20535] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20534] <... futex resumed>) = 0 [pid 20535] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20534] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20535] <... futex resumed>) = 0 [pid 20534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20535] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20534] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20535] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20534] <... futex resumed>) = 0 [pid 20535] dup(4 [pid 20534] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20535] <... dup resumed>) = 5 [pid 20535] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20534] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20536 attached [pid 20535] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20534] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20538 attached [pid 20535] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20534] <... futex resumed>) = 0 [pid 20538] set_robust_list(0x555556ba76e0, 24 [pid 20536] set_robust_list(0x7f61a3ef39e0, 24 [pid 20535] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20534] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20537 attached [pid 20536] <... set_robust_list resumed>) = 0 [pid 20537] set_robust_list(0x555556ba76e0, 24 [pid 20536] mkdir("./file0", 0777 [pid 20537] <... set_robust_list resumed>) = 0 [pid 20536] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20538] <... set_robust_list resumed>) = 0 [pid 20537] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20536] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20537] <... prctl resumed>) = 0 [pid 20536] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20537] setpgid(0, 0 [pid 20536] <... futex resumed>) = 1 [pid 20535] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20533] <... futex resumed>) = 0 [pid 20538] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20537] <... setpgid resumed>) = 0 [pid 20536] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20535] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20533] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20538] <... prctl resumed>) = 0 [pid 20537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20536] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20535] <... futex resumed>) = 1 [pid 20534] <... futex resumed>) = 0 [pid 20533] <... futex resumed>) = 0 [pid 20538] setpgid(0, 0 [pid 20537] <... openat resumed>) = 3 [pid 20536] pipe2( [pid 20535] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20534] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20533] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20538] <... setpgid resumed>) = 0 [pid 20537] write(3, "1000", 4 [pid 20536] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20535] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20534] <... futex resumed>) = 0 [pid 20538] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20537] <... write resumed>) = 4 [pid 20536] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20535] write(5, NULL, 176 [pid 20534] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20538] <... openat resumed>) = 3 [pid 20537] close(3 [pid 20536] <... futex resumed>) = 1 [pid 20535] <... write resumed>) = -1 EFAULT (Bad address) [pid 20533] <... futex resumed>) = 0 [pid 20538] write(3, "1000", 4 [pid 20537] <... close resumed>) = 0 [pid 20536] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20535] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20533] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20538] <... write resumed>) = 4 [pid 20537] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20536] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20535] <... futex resumed>) = 1 [pid 20534] <... futex resumed>) = 0 [pid 20533] <... futex resumed>) = 0 [pid 20538] close(3 [pid 20537] <... futex resumed>) = 0 [pid 20536] dup(4 [pid 20535] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20534] exit_group(0 [pid 20533] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20538] <... close resumed>) = 0 [pid 20537] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20536] <... dup resumed>) = 5 [pid 20535] <... futex resumed>) = ? [pid 20534] <... exit_group resumed>) = ? [pid 20538] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20537] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20536] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20535] +++ exited with 0 +++ [pid 20538] <... futex resumed>) = 0 [pid 20537] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20536] <... futex resumed>) = 1 [pid 20534] +++ exited with 0 +++ [pid 20533] <... futex resumed>) = 0 [pid 20538] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20537] <... mprotect resumed>) = 0 [pid 20536] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20533] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20538] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20537] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20536] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20533] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20534, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 20539 attached [pid 20538] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20536] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20533] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20539] set_robust_list(0x7f61a3ef39e0, 24 [pid 20538] <... mprotect resumed>) = 0 [pid 20537] <... clone resumed>, parent_tid=[20539], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20539 [pid 3607] <... openat resumed>) = 3 [pid 20539] <... set_robust_list resumed>) = 0 [pid 20538] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20539] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20537] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20538] <... clone resumed>, parent_tid=[20540], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20540 [pid 3607] close(3 [pid 20539] mkdir("./file0", 0777 [pid 20538] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 20539] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20538] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20539] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20538] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20539] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20541 [pid 20539] <... futex resumed>) = 0 [pid 20539] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20540 attached [pid 20540] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20540] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20540] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20540] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20538] <... futex resumed>) = 0 [pid 20540] pipe2( [pid 20538] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20540] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20538] <... futex resumed>) = 0 [pid 20540] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20538] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20540] <... futex resumed>) = 0 [pid 20538] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20540] dup(4 [pid 20538] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20540] <... dup resumed>) = 5 [pid 20538] <... futex resumed>) = 0 [pid 20540] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20538] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20540] <... futex resumed>) = 0 [pid 20538] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20540] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20539] <... futex resumed>) = 0 [pid 20538] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20537] <... futex resumed>) = 1 [pid 20540] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20539] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20538] <... futex resumed>) = 0 [pid 20537] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20540] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20538] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20537] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 20541 attached [pid 20541] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20541] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20541] setpgid(0, 0) = 0 [pid 20541] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20541] write(3, "1000", 4) = 4 [pid 20541] close(3) = 0 [pid 20541] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20541] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20541] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20537] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20539] <... futex resumed>) = 0 [pid 20537] <... futex resumed>) = 1 [pid 20539] pipe2( [pid 20537] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20539] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20541] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20539] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20537] <... futex resumed>) = 0 [pid 20541] <... clone resumed>, parent_tid=[20542], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20542 [pid 20539] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20537] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20541] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20537] <... futex resumed>) = 0 [pid 20541] <... futex resumed>) = 0 [pid 20539] dup(4 [pid 20537] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20541] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20539] <... dup resumed>) = 5 [pid 20539] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20537] <... futex resumed>) = 0 [pid 20539] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20537] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20537] <... futex resumed>) = 0 [pid 20539] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20537] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20542 attached [pid 20536] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20536] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20533] <... futex resumed>) = 0 [pid 20536] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20533] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20536] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20533] <... futex resumed>) = 0 [pid 20536] write(5, NULL, 176 [pid 20533] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20536] <... write resumed>) = -1 EFAULT (Bad address) [pid 20536] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20533] <... futex resumed>) = 0 [pid 20542] set_robust_list(0x7f61a3ef39e0, 24 [pid 20540] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20536] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20533] exit_group(0 [pid 20536] <... futex resumed>) = ? [pid 20533] <... exit_group resumed>) = ? [pid 20542] <... set_robust_list resumed>) = 0 [pid 20540] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20539] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20536] +++ exited with 0 +++ [pid 20533] +++ exited with 0 +++ [pid 20542] mkdir("./file0", 0777 [pid 20540] <... futex resumed>) = 1 [pid 20539] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20538] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20533, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20542] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20540] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20539] <... futex resumed>) = 1 [pid 20538] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20537] <... futex resumed>) = 0 [pid 20542] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20540] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20539] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20538] <... futex resumed>) = 0 [pid 20537] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20542] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20540] write(5, NULL, 176 [pid 20539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20538] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20537] <... futex resumed>) = 0 [pid 20542] <... futex resumed>) = 1 [pid 20541] <... futex resumed>) = 0 [pid 20540] <... write resumed>) = -1 EFAULT (Bad address) [pid 20539] write(5, NULL, 176 [pid 20537] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20542] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20541] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20540] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20539] <... write resumed>) = -1 EFAULT (Bad address) [pid 20542] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20541] <... futex resumed>) = 0 [pid 20540] <... futex resumed>) = 1 [pid 20539] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20538] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20542] pipe2( [pid 20541] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20540] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20539] <... futex resumed>) = 1 [pid 20538] exit_group(0 [pid 20537] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20542] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20540] <... futex resumed>) = ? [pid 20539] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20538] <... exit_group resumed>) = ? [pid 20537] exit_group(0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20542] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20540] +++ exited with 0 +++ [pid 20539] <... futex resumed>) = ? [pid 20537] <... exit_group resumed>) = ? [pid 20542] <... futex resumed>) = 1 [pid 20541] <... futex resumed>) = 0 [pid 20539] +++ exited with 0 +++ [pid 20538] +++ exited with 0 +++ [pid 20537] +++ exited with 0 +++ [pid 3606] close(3 [pid 20542] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20541] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20537, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20542] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20542] dup(4) = 5 [pid 20542] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20542] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 20541] <... futex resumed>) = 1 [pid 20542] <... futex resumed>) = 0 [pid 20541] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20538, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20542] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20541] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20541] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20542] <... futex resumed>) = 0 [pid 20541] <... futex resumed>) = 1 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20543 [pid 3604] <... close resumed>) = 0 [pid 20542] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20541] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... restart_syscall resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20544 ./strace-static-x86_64: Process 20544 attached [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 20544] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20544] setpgid(0, 0) = 0 [pid 20544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20544] write(3, "1000", 4) = 4 [pid 20544] close(3) = 0 [pid 20544] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20544] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20544] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20544] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20544] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20545 ./strace-static-x86_64: Process 20543 attached [pid 20544] <... clone resumed>, parent_tid=[20546], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20546 [pid 20544] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20543] set_robust_list(0x555556ba76e0, 24 [pid 20544] <... futex resumed>) = 0 [pid 20543] <... set_robust_list resumed>) = 0 [pid 20544] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20543] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 20545 attached [pid 20545] set_robust_list(0x555556ba76e0, 24 [pid 20543] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 20546 attached [pid 20545] <... set_robust_list resumed>) = 0 [pid 20543] setpgid(0, 0 [pid 20546] set_robust_list(0x7f61a3ef39e0, 24 [pid 20545] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20546] <... set_robust_list resumed>) = 0 [pid 20545] <... prctl resumed>) = 0 [pid 20543] <... setpgid resumed>) = 0 [pid 20542] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20546] mkdir("./file0", 0777 [pid 20545] setpgid(0, 0 [pid 20546] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20545] <... setpgid resumed>) = 0 [pid 20546] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20545] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20546] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20545] <... openat resumed>) = 3 [pid 20546] <... futex resumed>) = 1 [pid 20545] write(3, "1000", 4 [pid 20544] <... futex resumed>) = 0 [pid 20546] pipe2( [pid 20545] <... write resumed>) = 4 [pid 20544] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20546] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20545] close(3 [pid 20544] <... futex resumed>) = 0 [pid 20543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20542] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20546] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20545] <... close resumed>) = 0 [pid 20544] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20542] <... futex resumed>) = 1 [pid 20541] <... futex resumed>) = 0 [pid 20546] <... futex resumed>) = 0 [pid 20545] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20544] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20543] <... openat resumed>) = 3 [pid 20542] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20541] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20546] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20545] <... futex resumed>) = 0 [pid 20544] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20543] write(3, "1000", 4 [pid 20542] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20541] <... futex resumed>) = 0 [pid 20546] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20545] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20544] <... futex resumed>) = 0 [pid 20543] <... write resumed>) = 4 [pid 20542] write(5, NULL, 176 [pid 20541] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20546] dup(4 [pid 20545] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20544] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20543] close(3 [pid 20542] <... write resumed>) = -1 EFAULT (Bad address) [pid 20546] <... dup resumed>) = 5 [pid 20545] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20543] <... close resumed>) = 0 [pid 20542] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20546] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20545] <... mprotect resumed>) = 0 [pid 20543] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20542] <... futex resumed>) = 1 [pid 20541] <... futex resumed>) = 0 [pid 20546] <... futex resumed>) = 1 [pid 20545] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20544] <... futex resumed>) = 0 [pid 20543] <... futex resumed>) = 0 [pid 20542] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20541] exit_group(0 [pid 20546] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20544] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20543] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20542] <... futex resumed>) = ? [pid 20541] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20547 attached [pid 20546] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20545] <... clone resumed>, parent_tid=[20547], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20547 [pid 20544] <... futex resumed>) = 0 [pid 20543] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20542] +++ exited with 0 +++ [pid 20541] +++ exited with 0 +++ [pid 20547] set_robust_list(0x7f61a3ef39e0, 24 [pid 20546] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20545] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20544] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20543] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20541, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20543] <... mprotect resumed>) = 0 [pid 20545] <... futex resumed>) = 0 [pid 20543] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20545] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20543] <... clone resumed>, parent_tid=[20548], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20548 [pid 3607] <... openat resumed>) = 3 [pid 20543] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20543] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20543] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] close(3./strace-static-x86_64: Process 20548 attached [pid 20547] <... set_robust_list resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20548] set_robust_list(0x7f61a3ef39e0, 24 [pid 20547] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20546] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20549 [pid 20546] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20547] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20546] <... futex resumed>) = 1 [pid 20544] <... futex resumed>) = 0 [pid 20547] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20546] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20544] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20547] <... futex resumed>) = 1 [pid 20546] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20545] <... futex resumed>) = 0 [pid 20547] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20546] write(5, NULL, 176 [pid 20545] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20544] <... futex resumed>) = 0 [pid 20547] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20546] <... write resumed>) = -1 EFAULT (Bad address) [pid 20545] <... futex resumed>) = 0 [pid 20544] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20546] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20547] pipe2( [pid 20545] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20544] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20547] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20546] <... futex resumed>) = 0 [pid 20544] exit_group(0./strace-static-x86_64: Process 20549 attached [pid 20547] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20544] <... exit_group resumed>) = ? [pid 20549] set_robust_list(0x555556ba76e0, 24 [pid 20546] +++ exited with 0 +++ [pid 20545] <... futex resumed>) = 0 [pid 20549] <... set_robust_list resumed>) = 0 [pid 20549] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20544] +++ exited with 0 +++ [pid 20549] <... prctl resumed>) = 0 [pid 20547] <... futex resumed>) = 1 [pid 20545] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20549] setpgid(0, 0 [pid 20548] <... set_robust_list resumed>) = 0 [pid 20547] dup(4 [pid 20545] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20544, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20549] <... setpgid resumed>) = 0 [pid 20548] mkdir("./file0", 0777 [pid 20547] <... dup resumed>) = 5 [pid 20545] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20548] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20547] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20545] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] <... restart_syscall resumed>) = 0 [pid 20549] <... openat resumed>) = 3 [pid 20548] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20547] <... futex resumed>) = 0 [pid 20545] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20549] write(3, "1000", 4 [pid 20545] <... futex resumed>) = 0 [pid 20549] <... write resumed>) = 4 [pid 20548] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20547] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20545] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20549] close(3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20549] <... close resumed>) = 0 [pid 20549] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 20549] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20549] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20549] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20549] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] close(3 [pid 20549] <... mprotect resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20549] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20548] <... futex resumed>) = 1 [pid 20543] <... futex resumed>) = 0 [pid 20549] <... clone resumed>, parent_tid=[20550], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20550 [pid 20543] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20549] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20548] pipe2( [pid 20543] <... futex resumed>) = 0 [pid 20549] <... futex resumed>) = 0 [pid 20548] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20543] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20551 [pid 20549] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20550 attached [pid 20550] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20550] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20550] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20550] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20549] <... futex resumed>) = 0 [pid 20549] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20549] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20550] <... futex resumed>) = 1 [pid 20550] pipe2([3, 4], 0) = 0 [pid 20550] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20549] <... futex resumed>) = 0 [pid 20550] dup(4 [pid 20549] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20550] <... dup resumed>) = 5 [pid 20549] <... futex resumed>) = 0 [pid 20550] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20549] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20550] <... futex resumed>) = 0 [pid 20549] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20550] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20549] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20549] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20548] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20543] <... futex resumed>) = 0 [pid 20543] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20548] dup(4 [pid 20543] <... futex resumed>) = 0 [pid 20543] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20551 attached [pid 20548] <... dup resumed>) = 5 [pid 20551] set_robust_list(0x555556ba76e0, 24 [pid 20548] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20543] <... futex resumed>) = 0 [pid 20543] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20548] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20543] <... futex resumed>) = 0 [pid 20543] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20551] <... set_robust_list resumed>) = 0 [pid 20551] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20551] setpgid(0, 0 [pid 20548] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20547] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20548] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20547] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20548] <... futex resumed>) = 1 [pid 20547] <... futex resumed>) = 1 [pid 20545] <... futex resumed>) = 0 [pid 20543] <... futex resumed>) = 0 [pid 20551] <... setpgid resumed>) = 0 [pid 20548] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20547] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20545] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20543] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20551] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20548] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20547] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20545] <... futex resumed>) = 0 [pid 20543] <... futex resumed>) = 0 [pid 20551] <... openat resumed>) = 3 [pid 20548] write(5, NULL, 176 [pid 20547] write(5, NULL, 176 [pid 20545] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20543] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20551] write(3, "1000", 4 [pid 20548] <... write resumed>) = -1 EFAULT (Bad address) [pid 20547] <... write resumed>) = -1 EFAULT (Bad address) [pid 20551] <... write resumed>) = 4 [pid 20548] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20547] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20551] close(3 [pid 20548] <... futex resumed>) = 1 [pid 20547] <... futex resumed>) = 1 [pid 20545] <... futex resumed>) = 0 [pid 20543] <... futex resumed>) = 0 [pid 20550] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20551] <... close resumed>) = 0 [pid 20550] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20548] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20547] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20545] exit_group(0 [pid 20543] exit_group(0 [pid 20551] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20550] <... futex resumed>) = 1 [pid 20549] <... futex resumed>) = 0 [pid 20548] <... futex resumed>) = ? [pid 20547] <... futex resumed>) = ? [pid 20545] <... exit_group resumed>) = ? [pid 20543] <... exit_group resumed>) = ? [pid 20551] <... futex resumed>) = 0 [pid 20550] write(5, NULL, 176 [pid 20549] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20548] +++ exited with 0 +++ [pid 20547] +++ exited with 0 +++ [pid 20545] +++ exited with 0 +++ [pid 20543] +++ exited with 0 +++ [pid 20551] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20550] <... write resumed>) = -1 EFAULT (Bad address) [pid 20549] <... futex resumed>) = 0 [pid 20551] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20550] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20549] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20543, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20551] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20550] <... futex resumed>) = 0 [pid 20549] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20551] <... mprotect resumed>) = 0 [pid 20550] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20549] exit_group(0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20545, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20551] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20550] <... futex resumed>) = ? [pid 20549] <... exit_group resumed>) = ? [pid 3606] <... openat resumed>) = 3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20550] +++ exited with 0 +++ ./strace-static-x86_64: Process 20552 attached [pid 20552] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20552] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20549] +++ exited with 0 +++ [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3601] <... openat resumed>) = 3 [pid 20551] <... clone resumed>, parent_tid=[20552], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20552 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20549, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20551] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20551] <... futex resumed>) = 1 [pid 3606] close(3 [pid 20551] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] <... close resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20552] <... futex resumed>) = 0 [pid 20552] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20552] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20552] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20552] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20551] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20551] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20552] <... futex resumed>) = 0 [pid 20552] pipe2([3, 4], 0) = 0 [pid 20552] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20551] <... futex resumed>) = 0 [pid 20551] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20551] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20552] <... futex resumed>) = 1 [pid 20552] dup(4) = 5 [pid 20552] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20551] <... futex resumed>) = 0 [pid 20552] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20551] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20551] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20553 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] close(3./strace-static-x86_64: Process 20553 attached ./strace-static-x86_64: Process 20554 attached ) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20554 [pid 20553] set_robust_list(0x555556ba76e0, 24 [pid 20554] set_robust_list(0x555556ba76e0, 24 [pid 20553] <... set_robust_list resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20554] <... set_robust_list resumed>) = 0 [pid 20553] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ./strace-static-x86_64: Process 20555 attached [pid 20554] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20553] setpgid(0, 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20555 [pid 20555] set_robust_list(0x555556ba76e0, 24 [pid 20554] <... prctl resumed>) = 0 [pid 20553] <... setpgid resumed>) = 0 [pid 20555] <... set_robust_list resumed>) = 0 [pid 20554] setpgid(0, 0 [pid 20553] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20555] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20554] <... setpgid resumed>) = 0 [pid 20553] <... openat resumed>) = 3 [pid 20555] <... prctl resumed>) = 0 [pid 20554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20553] write(3, "1000", 4 [pid 20554] <... openat resumed>) = 3 [pid 20555] setpgid(0, 0 [pid 20554] write(3, "1000", 4 [pid 20553] <... write resumed>) = 4 [pid 20555] <... setpgid resumed>) = 0 [pid 20554] <... write resumed>) = 4 [pid 20553] close(3 [pid 20555] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20554] close(3 [pid 20555] <... openat resumed>) = 3 [pid 20554] <... close resumed>) = 0 [pid 20553] <... close resumed>) = 0 [pid 20555] write(3, "1000", 4 [pid 20554] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20555] <... write resumed>) = 4 [pid 20554] <... futex resumed>) = 0 [pid 20555] close(3 [pid 20554] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20555] <... close resumed>) = 0 [pid 20554] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20555] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20554] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20552] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20553] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20555] <... futex resumed>) = 0 [pid 20554] <... mprotect resumed>) = 0 [pid 20553] <... futex resumed>) = 0 [pid 20552] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20555] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20554] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20553] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20552] <... futex resumed>) = 1 [pid 20551] <... futex resumed>) = 0 [pid 20555] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20553] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20551] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20552] write(5, NULL, 176 [pid 20555] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20554] <... clone resumed>, parent_tid=[20556], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20556 [pid 20553] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20552] <... write resumed>) = -1 EFAULT (Bad address) [pid 20551] <... futex resumed>) = 0 [pid 20555] <... mprotect resumed>) = 0 [pid 20554] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20553] <... mprotect resumed>) = 0 [pid 20552] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20555] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20554] <... futex resumed>) = 0 [pid 20551] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20553] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20554] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20552] <... futex resumed>) = 0 [pid 20551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20555] <... clone resumed>, parent_tid=[20557], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20557 [pid 20552] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20551] exit_group(0 [pid 20555] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20553] <... clone resumed>, parent_tid=[20558], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20558 [pid 20552] <... futex resumed>) = ? [pid 20551] <... exit_group resumed>) = ? [pid 20555] <... futex resumed>) = 0 [pid 20553] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20552] +++ exited with 0 +++ [pid 20555] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20558 attached [pid 20558] set_robust_list(0x7f61a3ef39e0, 24 [pid 20551] +++ exited with 0 +++ [pid 20553] <... futex resumed>) = 0 [pid 20558] <... set_robust_list resumed>) = 0 [pid 20553] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20551, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20558] mkdir("./file0", 0777 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20558] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20558] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3604] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 20557 attached [pid 20558] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20557] set_robust_list(0x7f61a3ef39e0, 24 [pid 20558] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20557] <... set_robust_list resumed>) = 0 [pid 20553] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20556 attached [pid 20557] mkdir("./file0", 0777 [pid 20553] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20556] set_robust_list(0x7f61a3ef39e0, 24 [pid 20553] <... futex resumed>) = 1 [pid 20558] <... futex resumed>) = 0 [pid 20557] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20553] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20556] <... set_robust_list resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20558] pipe2( [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20558] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20557] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20556] mkdir("./file0", 0777 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20558] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20557] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20556] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3604] close(3 [pid 20558] <... futex resumed>) = 1 [pid 20557] <... futex resumed>) = 1 [pid 20555] <... futex resumed>) = 0 [pid 20553] <... futex resumed>) = 0 [pid 20558] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20557] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20556] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20555] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20553] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 20558] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20557] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20556] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20555] <... futex resumed>) = 0 [pid 20553] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20558] dup(4 [pid 20557] pipe2( [pid 20556] <... futex resumed>) = 1 [pid 20555] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20554] <... futex resumed>) = 0 [pid 20553] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20558] <... dup resumed>) = 5 [pid 20557] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20556] pipe2( [pid 20554] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20558] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20557] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20554] <... futex resumed>) = 0 [pid 20556] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20559 [pid 20558] <... futex resumed>) = 1 [pid 20557] <... futex resumed>) = 1 [pid 20556] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20555] <... futex resumed>) = 0 [pid 20554] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20553] <... futex resumed>) = 0 [pid 20558] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20557] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20556] <... futex resumed>) = 0 [pid 20555] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20554] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20553] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20558] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20557] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20556] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20555] <... futex resumed>) = 0 [pid 20554] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20559 attached [pid 20558] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20557] dup(4 [pid 20556] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20555] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20554] <... futex resumed>) = 0 [pid 20553] <... futex resumed>) = 0 [pid 20557] <... dup resumed>) = 5 [pid 20556] dup(4 [pid 20554] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20553] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20557] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20556] <... dup resumed>) = 5 [pid 20557] <... futex resumed>) = 1 [pid 20556] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20555] <... futex resumed>) = 0 [pid 20557] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20556] <... futex resumed>) = 1 [pid 20555] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20554] <... futex resumed>) = 0 [pid 20557] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20556] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20555] <... futex resumed>) = 0 [pid 20554] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20557] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20556] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20556] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20559] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20559] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20559] setpgid(0, 0) = 0 [pid 20559] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20555] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20554] <... futex resumed>) = 0 [pid 20559] <... openat resumed>) = 3 [pid 20558] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20554] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20559] write(3, "1000", 4) = 4 [pid 20559] close(3) = 0 [pid 20559] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20558] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20559] <... futex resumed>) = 0 [pid 20559] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20559] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20558] <... futex resumed>) = 1 [pid 20553] <... futex resumed>) = 0 [pid 20559] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20553] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20558] write(5, NULL, 176 [pid 20556] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20553] <... futex resumed>) = 0 [pid 20559] <... clone resumed>, parent_tid=[20560], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20560 [pid 20558] <... write resumed>) = -1 EFAULT (Bad address) [pid 20556] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20553] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20559] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20556] <... futex resumed>) = 1 [pid 20554] <... futex resumed>) = 0 [pid 20559] <... futex resumed>) = 0 [pid 20558] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20556] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20554] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20559] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20560 attached [pid 20558] <... futex resumed>) = 1 [pid 20557] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20556] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20554] <... futex resumed>) = 0 [pid 20553] <... futex resumed>) = 0 [pid 20560] set_robust_list(0x7f61a3ef39e0, 24 [pid 20558] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20557] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20556] write(5, NULL, 176 [pid 20554] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20553] exit_group(0 [pid 20560] <... set_robust_list resumed>) = 0 [pid 20558] <... futex resumed>) = ? [pid 20557] <... futex resumed>) = 1 [pid 20556] <... write resumed>) = -1 EFAULT (Bad address) [pid 20555] <... futex resumed>) = 0 [pid 20553] <... exit_group resumed>) = ? [pid 20560] mkdir("./file0", 0777 [pid 20558] +++ exited with 0 +++ [pid 20557] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20556] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20555] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20560] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20557] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20556] <... futex resumed>) = 1 [pid 20555] <... futex resumed>) = 0 [pid 20554] <... futex resumed>) = 0 [pid 20560] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20557] write(5, NULL, 176 [pid 20556] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20555] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20554] exit_group(0 [pid 20553] +++ exited with 0 +++ [pid 20560] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20557] <... write resumed>) = -1 EFAULT (Bad address) [pid 20556] <... futex resumed>) = ? [pid 20554] <... exit_group resumed>) = ? [pid 20560] <... futex resumed>) = 1 [pid 20559] <... futex resumed>) = 0 [pid 20557] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20556] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20553, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20560] pipe2( [pid 20559] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20557] <... futex resumed>) = 1 [pid 20555] <... futex resumed>) = 0 [pid 20554] +++ exited with 0 +++ [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20560] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20559] <... futex resumed>) = 0 [pid 20557] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20555] exit_group(0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20560] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20559] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20557] <... futex resumed>) = ? [pid 20555] <... exit_group resumed>) = ? [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20554, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20560] <... futex resumed>) = 0 [pid 20559] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20557] +++ exited with 0 +++ [pid 20555] +++ exited with 0 +++ [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20560] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20559] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] <... openat resumed>) = 3 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20555, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20560] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20559] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20560] dup(4 [pid 20559] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... restart_syscall resumed>) = 0 [pid 20560] <... dup resumed>) = 5 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 20560] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 3606] <... close resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20561 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20562 ./strace-static-x86_64: Process 20561 attached [pid 20561] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20561] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20560] <... futex resumed>) = 1 [pid 20559] <... futex resumed>) = 0 [pid 20559] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20559] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20561] <... prctl resumed>) = 0 [pid 20560] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 20561] setpgid(0, 0) = 0 [pid 20561] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20561] <... openat resumed>) = 3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] close(3 [pid 20561] write(3, "1000", 4 [pid 3601] <... close resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20561] <... write resumed>) = 4 [pid 20561] close(3 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20563 [pid 20561] <... close resumed>) = 0 [pid 20561] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20561] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20561] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20561] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20563 attached , parent_tid=[20564], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20564 [pid 20563] set_robust_list(0x555556ba76e0, 24 [pid 20561] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20563] <... set_robust_list resumed>) = 0 [pid 20561] <... futex resumed>) = 0 [pid 20563] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20561] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20563] <... prctl resumed>) = 0 [pid 20563] setpgid(0, 0) = 0 [pid 20563] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20560] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20563] write(3, "1000", 4) = 4 [pid 20560] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20563] close(3 [pid 20560] <... futex resumed>) = 1 [pid 20559] <... futex resumed>) = 0 [pid 20563] <... close resumed>) = 0 [pid 20559] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20563] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20560] write(5, NULL, 176 [pid 20559] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20564 attached [pid 20563] <... futex resumed>) = 0 [pid 20559] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20564] set_robust_list(0x7f61a3ef39e0, 24 [pid 20563] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20560] <... write resumed>) = -1 EFAULT (Bad address) [pid 20564] <... set_robust_list resumed>) = 0 [pid 20563] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20560] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20564] mkdir("./file0", 0777 [pid 20563] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20559] <... futex resumed>) = 0 [pid 20560] <... futex resumed>) = 1 [pid 20564] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20563] <... mprotect resumed>) = 0 [pid 20559] exit_group(0 [pid 20560] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20564] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20563] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20560] +++ exited with 0 +++ [pid 20559] <... exit_group resumed>) = ? [pid 20564] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20563] <... clone resumed>, parent_tid=[20565], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20565 [pid 20561] <... futex resumed>) = 0 [pid 20564] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20563] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20561] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20563] <... futex resumed>) = 0 [pid 20561] <... futex resumed>) = 0 [pid 20559] +++ exited with 0 +++ [pid 20564] pipe2( [pid 20563] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20561] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20559, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20564] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20564] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20561] <... futex resumed>) = 0 [pid 20564] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20561] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20561] <... futex resumed>) = 0 [pid 20564] dup(4 [pid 20561] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 20562 attached [pid 20564] <... dup resumed>) = 5 [pid 20564] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 20564] <... futex resumed>) = 1 [pid 20561] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20565 attached [pid 20564] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20562] set_robust_list(0x555556ba76e0, 24 [pid 20561] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20565] set_robust_list(0x7f61a3ef39e0, 24 [pid 20564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20561] <... futex resumed>) = 0 [pid 20562] <... set_robust_list resumed>) = 0 [pid 3604] close(3 [pid 20565] <... set_robust_list resumed>) = 0 [pid 20564] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20561] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... close resumed>) = 0 [pid 20565] mkdir("./file0", 0777 [pid 20562] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20565] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20565] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20565] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20563] <... futex resumed>) = 0 [pid 20565] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20563] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20563] <... futex resumed>) = 0 [pid 20565] pipe2( [pid 20563] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20565] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20565] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20563] <... futex resumed>) = 0 [pid 20565] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20563] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20563] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20566 attached [pid 20565] dup(4 [pid 20563] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20566] set_robust_list(0x555556ba76e0, 24 [pid 20565] <... dup resumed>) = 5 [pid 20566] <... set_robust_list resumed>) = 0 [pid 20565] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20566] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20565] <... futex resumed>) = 1 [pid 20563] <... futex resumed>) = 0 [pid 20566] <... prctl resumed>) = 0 [pid 20565] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20563] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20566] setpgid(0, 0 [pid 20565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20563] <... futex resumed>) = 0 [pid 20566] <... setpgid resumed>) = 0 [pid 20565] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20563] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20566] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20564] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20562] <... prctl resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20566 [pid 20566] <... openat resumed>) = 3 [pid 20564] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20562] setpgid(0, 0 [pid 20566] write(3, "1000", 4 [pid 20564] <... futex resumed>) = 1 [pid 20562] <... setpgid resumed>) = 0 [pid 20561] <... futex resumed>) = 0 [pid 20566] <... write resumed>) = 4 [pid 20564] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20561] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20566] close(3 [pid 20564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20562] <... openat resumed>) = 3 [pid 20561] <... futex resumed>) = 0 [pid 20566] <... close resumed>) = 0 [pid 20564] write(5, NULL, 176 [pid 20562] write(3, "1000", 4 [pid 20561] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20566] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20564] <... write resumed>) = -1 EFAULT (Bad address) [pid 20562] <... write resumed>) = 4 [pid 20566] <... futex resumed>) = 0 [pid 20565] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20564] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20562] close(3 [pid 20566] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20565] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20564] <... futex resumed>) = 1 [pid 20562] <... close resumed>) = 0 [pid 20561] <... futex resumed>) = 0 [pid 20566] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20565] <... futex resumed>) = 1 [pid 20564] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20563] <... futex resumed>) = 0 [pid 20562] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20561] exit_group(0 [pid 20566] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20565] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20563] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20561] <... exit_group resumed>) = ? [pid 20566] <... mprotect resumed>) = 0 [pid 20565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20563] <... futex resumed>) = 0 [pid 20566] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20565] write(5, NULL, 176 [pid 20563] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20565] <... write resumed>) = -1 EFAULT (Bad address) [pid 20566] <... clone resumed>, parent_tid=[20567], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20567 [pid 20565] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20566] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20565] <... futex resumed>) = 1 [pid 20563] <... futex resumed>) = 0 [pid 20566] <... futex resumed>) = 0 [pid 20565] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20563] exit_group(0 [pid 20566] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20565] <... futex resumed>) = ? [pid 20563] <... exit_group resumed>) = ? [pid 20565] +++ exited with 0 +++ [pid 20564] <... futex resumed>) = ? [pid 20563] +++ exited with 0 +++ [pid 20562] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20567 attached [pid 20567] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20564] +++ exited with 0 +++ [pid 20561] +++ exited with 0 +++ [pid 20562] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20561, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20562] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20562] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20563, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20562] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20567] mkdir("./file0", 0777 [pid 20562] <... clone resumed>, parent_tid=[20568], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20568 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3601] <... restart_syscall resumed>) = 0 [pid 20567] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20562] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 20567] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20562] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20567] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20562] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20567] <... futex resumed>) = 1 [pid 20566] <... futex resumed>) = 0 [pid 3606] close(3./strace-static-x86_64: Process 20568 attached [pid 20567] pipe2( [pid 20566] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20567] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20566] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20567] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20566] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20567] <... futex resumed>) = 0 [pid 20566] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20569 [pid 3601] close(3 [pid 20568] set_robust_list(0x7f61a3ef39e0, 24 [pid 20567] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20566] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20568] <... set_robust_list resumed>) = 0 [pid 20567] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20566] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20568] mkdir("./file0", 0777 [pid 20567] dup(4 [pid 20566] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20568] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20567] <... dup resumed>) = 5 [pid 20568] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20567] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20568] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20567] <... futex resumed>) = 1 [pid 20566] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20570 [pid 20568] <... futex resumed>) = 1 [pid 20567] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20566] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20562] <... futex resumed>) = 0 [pid 20568] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20567] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20566] <... futex resumed>) = 0 [pid 20562] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20569 attached [pid 20568] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20567] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20566] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20562] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20570 attached [pid 20569] set_robust_list(0x555556ba76e0, 24 [pid 20568] pipe2( [pid 20562] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20570] set_robust_list(0x555556ba76e0, 24 [pid 20569] <... set_robust_list resumed>) = 0 [pid 20568] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20567] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20570] <... set_robust_list resumed>) = 0 [pid 20568] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20567] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20570] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20569] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20568] <... futex resumed>) = 1 [pid 20567] <... futex resumed>) = 1 [pid 20566] <... futex resumed>) = 0 [pid 20562] <... futex resumed>) = 0 [pid 20570] <... prctl resumed>) = 0 [pid 20569] <... prctl resumed>) = 0 [pid 20568] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20567] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20566] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20562] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20570] setpgid(0, 0 [pid 20569] setpgid(0, 0 [pid 20568] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20567] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20566] <... futex resumed>) = 0 [pid 20562] <... futex resumed>) = 0 [pid 20570] <... setpgid resumed>) = 0 [pid 20569] <... setpgid resumed>) = 0 [pid 20568] dup(4 [pid 20567] write(5, NULL, 176 [pid 20566] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20562] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20569] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20568] <... dup resumed>) = 5 [pid 20567] <... write resumed>) = -1 EFAULT (Bad address) [pid 20570] <... openat resumed>) = 3 [pid 20569] <... openat resumed>) = 3 [pid 20568] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20567] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20570] write(3, "1000", 4 [pid 20569] write(3, "1000", 4 [pid 20568] <... futex resumed>) = 1 [pid 20567] <... futex resumed>) = 1 [pid 20566] <... futex resumed>) = 0 [pid 20562] <... futex resumed>) = 0 [pid 20570] <... write resumed>) = 4 [pid 20569] <... write resumed>) = 4 [pid 20568] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20567] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20566] exit_group(0 [pid 20562] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20570] close(3 [pid 20569] close(3 [pid 20568] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20567] <... futex resumed>) = ? [pid 20566] <... exit_group resumed>) = ? [pid 20562] <... futex resumed>) = 0 [pid 20570] <... close resumed>) = 0 [pid 20569] <... close resumed>) = 0 [pid 20568] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20567] +++ exited with 0 +++ [pid 20566] +++ exited with 0 +++ [pid 20570] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20562] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20566, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20569] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20570] <... futex resumed>) = 0 [pid 20569] <... futex resumed>) = 0 [pid 20570] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20569] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20570] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20569] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20570] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20569] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20570] <... mprotect resumed>) = 0 [pid 20569] <... mprotect resumed>) = 0 [pid 20570] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20569] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20572 attached [pid 20568] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20570] <... clone resumed>, parent_tid=[20571], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20571 [pid 20569] <... clone resumed>, parent_tid=[20572], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20572 [pid 20568] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20570] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20569] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20568] <... futex resumed>) = 1 [pid 20562] <... futex resumed>) = 0 [pid 3604] close(3 [pid 20570] <... futex resumed>) = 0 [pid 20569] <... futex resumed>) = 0 [pid 20568] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20562] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 20570] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20569] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20568] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20562] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20572] set_robust_list(0x7f61a3ef39e0, 24 [pid 20568] write(5, NULL, 176 [pid 20562] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20568] <... write resumed>) = -1 EFAULT (Bad address) [pid 20568] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20562] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20572] <... set_robust_list resumed>) = 0 [pid 20568] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20573 ./strace-static-x86_64: Process 20571 attached [pid 20568] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20562] exit_group(0 [pid 20572] mkdir("./file0", 0777 [pid 20571] set_robust_list(0x7f61a3ef39e0, 24 [pid 20568] <... futex resumed>) = ? [pid 20562] <... exit_group resumed>) = ? [pid 20572] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20571] <... set_robust_list resumed>) = 0 [pid 20568] +++ exited with 0 +++ [pid 20571] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20571] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20562] +++ exited with 0 +++ [pid 20572] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 20573 attached [pid 20571] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20572] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20571] <... futex resumed>) = 1 [pid 20570] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20562, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20572] <... futex resumed>) = 1 [pid 20569] <... futex resumed>) = 0 [pid 20573] set_robust_list(0x555556ba76e0, 24 [pid 20572] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20571] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20570] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20569] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20573] <... set_robust_list resumed>) = 0 [pid 20572] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20570] <... futex resumed>) = 0 [pid 20569] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20573] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20572] pipe2( [pid 20571] pipe2( [pid 20570] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20569] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20573] <... prctl resumed>) = 0 [pid 20572] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20571] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20573] setpgid(0, 0 [pid 20572] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20571] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20573] <... setpgid resumed>) = 0 [pid 20572] <... futex resumed>) = 1 [pid 20571] <... futex resumed>) = 1 [pid 20570] <... futex resumed>) = 0 [pid 20569] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20572] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20571] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20570] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20569] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20573] <... openat resumed>) = 3 [pid 20572] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20570] <... futex resumed>) = 0 [pid 20569] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20573] write(3, "1000", 4 [pid 20572] dup(4 [pid 20571] dup(4 [pid 20570] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20569] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] close(3 [pid 20573] <... write resumed>) = 4 [pid 20572] <... dup resumed>) = 5 [pid 20571] <... dup resumed>) = 5 [pid 3607] <... close resumed>) = 0 [pid 20571] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20571] <... futex resumed>) = 1 [pid 20570] <... futex resumed>) = 0 [pid 20571] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20570] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20574 [pid 20571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20570] <... futex resumed>) = 0 [pid 20571] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20570] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20573] close(3 [pid 20572] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20573] <... close resumed>) = 0 [pid 20572] <... futex resumed>) = 1 [pid 20569] <... futex resumed>) = 0 [pid 20573] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20572] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20573] <... futex resumed>) = 0 [pid 20572] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20569] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20573] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20572] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20569] <... futex resumed>) = 0 [pid 20573] <... mmap resumed>) = 0x7f61a3ed3000 ./strace-static-x86_64: Process 20574 attached [pid 20573] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20569] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20574] set_robust_list(0x555556ba76e0, 24 [pid 20573] <... mprotect resumed>) = 0 [pid 20573] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20574] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 20575 attached [pid 20574] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20573] <... clone resumed>, parent_tid=[20575], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20575 [pid 20574] <... prctl resumed>) = 0 [pid 20573] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20573] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20574] setpgid(0, 0 [pid 20575] set_robust_list(0x7f61a3ef39e0, 24 [pid 20574] <... setpgid resumed>) = 0 [pid 20575] <... set_robust_list resumed>) = 0 [pid 20574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20575] mkdir("./file0", 0777 [pid 20574] <... openat resumed>) = 3 [pid 20574] write(3, "1000", 4) = 4 [pid 20574] close(3) = 0 [pid 20575] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20574] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20571] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20574] <... futex resumed>) = 0 [pid 20571] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20571] <... futex resumed>) = 1 [pid 20570] <... futex resumed>) = 0 [pid 20574] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20571] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20570] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20574] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20570] <... futex resumed>) = 0 [pid 20574] <... mprotect resumed>) = 0 [pid 20571] write(5, NULL, 176 [pid 20570] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20574] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20571] <... write resumed>) = -1 EFAULT (Bad address) [pid 20571] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20574] <... clone resumed>, parent_tid=[20576], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20576 [pid 20571] <... futex resumed>) = 1 [pid 20570] <... futex resumed>) = 0 [pid 20574] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20571] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20570] exit_group(0 [pid 20574] <... futex resumed>) = 0 [pid 20571] <... futex resumed>) = ? [pid 20570] <... exit_group resumed>) = ? [pid 20574] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20571] +++ exited with 0 +++ [pid 20570] +++ exited with 0 +++ ./strace-static-x86_64: Process 20576 attached [pid 20576] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20576] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20576] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20576] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20570, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20574] <... futex resumed>) = 0 [pid 20574] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20574] <... futex resumed>) = 0 [pid 20574] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20576] <... futex resumed>) = 1 [pid 20576] pipe2( [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20576] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20572] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] close(3 [pid 20576] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20572] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20575] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20569] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20572] <... futex resumed>) = 1 [pid 20569] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20575] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20572] write(5, NULL, 176 [pid 20576] <... futex resumed>) = 1 [pid 20574] <... futex resumed>) = 0 [pid 20569] <... futex resumed>) = 0 [pid 20576] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20574] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20576] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20575] <... futex resumed>) = 1 [pid 20574] <... futex resumed>) = 0 [pid 20573] <... futex resumed>) = 0 [pid 20572] <... write resumed>) = -1 EFAULT (Bad address) [pid 20569] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20576] dup(4 [pid 20575] pipe2( [pid 20574] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20573] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20572] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20569] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20577 [pid 20576] <... dup resumed>) = 5 [pid 20575] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20573] <... futex resumed>) = 0 [pid 20572] <... futex resumed>) = 0 [pid 20569] exit_group(0./strace-static-x86_64: Process 20577 attached [pid 20576] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20573] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20569] <... exit_group resumed>) = ? [pid 20577] set_robust_list(0x555556ba76e0, 24 [pid 20576] <... futex resumed>) = 1 [pid 20575] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20574] <... futex resumed>) = 0 [pid 20573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20577] <... set_robust_list resumed>) = 0 [pid 20576] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20575] <... futex resumed>) = 0 [pid 20574] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20573] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20577] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20576] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20574] <... futex resumed>) = 0 [pid 20577] <... prctl resumed>) = 0 [pid 20576] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20575] dup(4 [pid 20574] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20573] <... futex resumed>) = 0 [pid 20572] +++ exited with 0 +++ [pid 20569] +++ exited with 0 +++ [pid 20577] setpgid(0, 0) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20569, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20577] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20575] <... dup resumed>) = 5 [pid 20573] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20575] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20575] <... futex resumed>) = 0 [pid 20573] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20575] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20573] <... futex resumed>) = 0 [pid 20573] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20577] <... openat resumed>) = 3 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20577] write(3, "1000", 4 [pid 20576] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20577] <... write resumed>) = 4 [pid 20576] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20577] close(3 [pid 20576] <... futex resumed>) = 1 [pid 20574] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20577] <... close resumed>) = 0 [pid 20576] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20574] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 20577] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20576] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20574] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20577] <... futex resumed>) = 0 [pid 20576] write(5, NULL, 176 [pid 20574] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20577] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20576] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] close(3 [pid 20577] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20576] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20577] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20576] <... futex resumed>) = 1 [pid 20574] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20577] <... mprotect resumed>) = 0 [pid 20576] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20574] exit_group(0 [pid 20577] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20576] <... futex resumed>) = ? [pid 20574] <... exit_group resumed>) = ? [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20578 [pid 20576] +++ exited with 0 +++ [pid 20574] +++ exited with 0 +++ [pid 20577] <... clone resumed>, parent_tid=[20579], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20579 [pid 20577] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20574, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20577] <... futex resumed>) = 0 [pid 20577] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20578 attached [pid 20578] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20578] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20578] setpgid(0, 0) = 0 [pid 20578] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20578] write(3, "1000", 4) = 4 [pid 20578] close(3 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20578] <... close resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20578] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3607] close(3) = 0 [pid 20578] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20578] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20578] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20578] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20580 [pid 20578] <... clone resumed>, parent_tid=[20581], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20581 [pid 20578] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20578] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20575] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20575] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20573] <... futex resumed>) = 0 [pid 20575] <... futex resumed>) = 1 [pid 20573] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20580 attached [pid 20575] write(5, NULL, 176 [pid 20573] <... futex resumed>) = 0 [pid 20580] set_robust_list(0x555556ba76e0, 24 [pid 20575] <... write resumed>) = -1 EFAULT (Bad address) [pid 20573] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20580] <... set_robust_list resumed>) = 0 [pid 20575] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20573] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 20581 attached [pid 20580] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20575] <... futex resumed>) = 0 [pid 20573] exit_group(0 [pid 20581] set_robust_list(0x7f61a3ef39e0, 24 [pid 20580] <... prctl resumed>) = 0 [pid 20573] <... exit_group resumed>) = ? [pid 20581] <... set_robust_list resumed>) = 0 [pid 20580] setpgid(0, 0 [pid 20581] mkdir("./file0", 0777 [pid 20580] <... setpgid resumed>) = 0 [pid 20581] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20575] +++ exited with 0 +++ [pid 20573] +++ exited with 0 +++ [pid 20581] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20580] <... openat resumed>) = 3 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20573, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20581] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20580] write(3, "1000", 4 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20581] <... futex resumed>) = 1 [pid 20580] <... write resumed>) = 4 [pid 20578] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20581] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20580] close(3 [pid 20578] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20581] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20580] <... close resumed>) = 0 [pid 20578] <... futex resumed>) = 0 [pid 20581] pipe2( [pid 20580] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20578] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20581] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20580] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20581] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20580] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20581] <... futex resumed>) = 1 [pid 20580] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20578] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20581] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20580] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20578] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20581] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20580] <... mprotect resumed>) = 0 [pid 20578] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20579 attached [pid 20581] dup(4 [pid 20580] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20578] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] close(3 [pid 20581] <... dup resumed>) = 5 [pid 20579] set_robust_list(0x7f61a3ef39e0, 24 [pid 3604] <... close resumed>) = 0 [pid 20581] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20580] <... clone resumed>, parent_tid=[20582], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20582 [pid 20579] <... set_robust_list resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20581] <... futex resumed>) = 1 [pid 20580] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20579] mkdir("./file0", 0777 [pid 20578] <... futex resumed>) = 0 [pid 20581] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20580] <... futex resumed>) = 0 [pid 20578] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20581] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20580] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20579] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20578] <... futex resumed>) = 0 [pid 20581] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20578] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20579] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20583 ./strace-static-x86_64: Process 20583 attached ./strace-static-x86_64: Process 20582 attached [pid 20583] set_robust_list(0x555556ba76e0, 24 [pid 20582] set_robust_list(0x7f61a3ef39e0, 24 [pid 20581] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20579] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20583] <... set_robust_list resumed>) = 0 [pid 20582] <... set_robust_list resumed>) = 0 [pid 20581] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20579] <... futex resumed>) = 1 [pid 20577] <... futex resumed>) = 0 [pid 20583] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20582] mkdir("./file0", 0777 [pid 20581] <... futex resumed>) = 1 [pid 20579] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20578] <... futex resumed>) = 0 [pid 20577] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20583] <... prctl resumed>) = 0 [pid 20582] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20578] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20577] <... futex resumed>) = 0 [pid 20578] <... futex resumed>) = 0 [pid 20577] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20578] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20581] write(5, NULL, 176 [pid 20583] setpgid(0, 0 [pid 20582] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20581] <... write resumed>) = -1 EFAULT (Bad address) [pid 20579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20583] <... setpgid resumed>) = 0 [pid 20582] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20579] pipe2( [pid 20583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20582] <... futex resumed>) = 1 [pid 20581] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20580] <... futex resumed>) = 0 [pid 20579] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20583] <... openat resumed>) = 3 [pid 20582] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20581] <... futex resumed>) = 1 [pid 20580] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20579] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20578] <... futex resumed>) = 0 [pid 20583] write(3, "1000", 4 [pid 20582] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20581] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20580] <... futex resumed>) = 0 [pid 20579] <... futex resumed>) = 1 [pid 20578] exit_group(0 [pid 20577] <... futex resumed>) = 0 [pid 20583] <... write resumed>) = 4 [pid 20582] pipe2( [pid 20581] <... futex resumed>) = ? [pid 20580] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20579] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20578] <... exit_group resumed>) = ? [pid 20577] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20583] close(3 [pid 20582] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20581] +++ exited with 0 +++ [pid 20579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20578] +++ exited with 0 +++ [pid 20577] <... futex resumed>) = 0 [pid 20583] <... close resumed>) = 0 [pid 20582] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20579] dup(4 [pid 20577] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20578, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20583] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20582] <... futex resumed>) = 1 [pid 20580] <... futex resumed>) = 0 [pid 20579] <... dup resumed>) = 5 [pid 20583] <... futex resumed>) = 0 [pid 20582] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20580] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20579] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20583] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20582] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20580] <... futex resumed>) = 0 [pid 20579] <... futex resumed>) = 1 [pid 20577] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20583] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20582] dup(4 [pid 20580] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20579] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20577] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 20583] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20582] <... dup resumed>) = 5 [pid 20579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20577] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20583] <... mprotect resumed>) = 0 [pid 20582] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20579] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20577] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20583] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20582] <... futex resumed>) = 1 [pid 20580] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20582] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20580] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20580] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20585 attached [pid 20583] <... clone resumed>, parent_tid=[20584], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20584 [pid 20580] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20585 [pid 20583] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20579] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20583] <... futex resumed>) = 0 [pid 20579] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20583] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20579] <... futex resumed>) = 1 [pid 20577] <... futex resumed>) = 0 [pid 20579] write(5, NULL, 176 [pid 20577] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20579] <... write resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20584 attached [pid 20585] set_robust_list(0x555556ba76e0, 24 [pid 20582] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20579] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20577] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20585] <... set_robust_list resumed>) = 0 [pid 20584] set_robust_list(0x7f61a3ef39e0, 24 [pid 20582] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20579] <... futex resumed>) = 0 [pid 20577] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20584] <... set_robust_list resumed>) = 0 [pid 20582] <... futex resumed>) = 1 [pid 20580] <... futex resumed>) = 0 [pid 20579] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20577] exit_group(0 [pid 20585] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20584] mkdir("./file0", 0777 [pid 20582] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20580] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20579] <... futex resumed>) = ? [pid 20577] <... exit_group resumed>) = ? [pid 20585] <... prctl resumed>) = 0 [pid 20584] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20582] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20580] <... futex resumed>) = 0 [pid 20579] +++ exited with 0 +++ [pid 20585] setpgid(0, 0 [pid 20584] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20582] write(5, NULL, 176 [pid 20580] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20577] +++ exited with 0 +++ [pid 20585] <... setpgid resumed>) = 0 [pid 20584] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20582] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20577, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20584] <... futex resumed>) = 1 [pid 20583] <... futex resumed>) = 0 [pid 20582] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20585] <... openat resumed>) = 3 [pid 20584] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20583] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20582] <... futex resumed>) = 1 [pid 20580] <... futex resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20585] write(3, "1000", 4 [pid 20584] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20583] <... futex resumed>) = 0 [pid 20582] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20580] exit_group(0 [pid 20585] <... write resumed>) = 4 [pid 20584] pipe2( [pid 20583] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20582] <... futex resumed>) = ? [pid 20580] <... exit_group resumed>) = ? [pid 20585] close(3 [pid 20584] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20582] +++ exited with 0 +++ [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20584] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20584] <... futex resumed>) = 1 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20580] +++ exited with 0 +++ [pid 20584] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20583] <... futex resumed>) = 0 [pid 20585] <... close resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20585] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20583] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20580, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] close(3 [pid 20585] <... futex resumed>) = 0 [pid 20584] <... futex resumed>) = 0 [pid 20583] <... futex resumed>) = 1 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] <... close resumed>) = 0 [pid 20585] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20584] dup(4 [pid 20583] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... openat resumed>) = 3 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20586 attached [pid 20585] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20584] <... dup resumed>) = 5 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20585] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20584] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20586 [pid 20585] <... mprotect resumed>) = 0 [pid 20584] <... futex resumed>) = 1 [pid 20583] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20586] set_robust_list(0x555556ba76e0, 24 [pid 20585] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20584] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20583] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 20586] <... set_robust_list resumed>) = 0 [pid 20584] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20583] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20586] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20585] <... clone resumed>, parent_tid=[20587], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20587 [pid 20584] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20583] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20586] <... prctl resumed>) = 0 [pid 20585] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20588 [pid 20586] setpgid(0, 0 [pid 20585] <... futex resumed>) = 0 [pid 20586] <... setpgid resumed>) = 0 [pid 20585] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20586] write(3, "1000", 4) = 4 [pid 20586] close(3) = 0 [pid 20586] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20586] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20586] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20586] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20589], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20589 [pid 20586] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20586] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20589 attached [pid 20589] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20589] mkdir("./file0", 0777./strace-static-x86_64: Process 20588 attached [pid 20588] set_robust_list(0x555556ba76e0, 24 [pid 20589] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20589] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20589] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20588] <... set_robust_list resumed>) = 0 [pid 20584] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20589] <... futex resumed>) = 1 [pid 20586] <... futex resumed>) = 0 [pid 20584] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20589] pipe2( [pid 20588] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20586] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20584] <... futex resumed>) = 1 [pid 20583] <... futex resumed>) = 0 [pid 20589] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20588] <... prctl resumed>) = 0 [pid 20586] <... futex resumed>) = 0 [pid 20589] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20586] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20583] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20589] <... futex resumed>) = 0 [pid 20586] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20583] <... futex resumed>) = 0 [pid 20589] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20586] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20583] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20586] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20587 attached [pid 20589] dup(4 [pid 20588] setpgid(0, 0 [pid 20586] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20584] write(5, NULL, 176 [pid 20589] <... dup resumed>) = 5 [pid 20588] <... setpgid resumed>) = 0 [pid 20587] set_robust_list(0x7f61a3ef39e0, 24 [pid 20584] <... write resumed>) = -1 EFAULT (Bad address) [pid 20589] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20588] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20587] <... set_robust_list resumed>) = 0 [pid 20584] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20589] <... futex resumed>) = 1 [pid 20588] <... openat resumed>) = 3 [pid 20587] mkdir("./file0", 0777 [pid 20586] <... futex resumed>) = 0 [pid 20584] <... futex resumed>) = 1 [pid 20583] <... futex resumed>) = 0 [pid 20589] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20588] write(3, "1000", 4 [pid 20587] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20586] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20584] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20583] exit_group(0 [pid 20589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20588] <... write resumed>) = 4 [pid 20587] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20586] <... futex resumed>) = 0 [pid 20584] <... futex resumed>) = ? [pid 20583] <... exit_group resumed>) = ? [pid 20589] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20588] close(3 [pid 20587] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20586] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20584] +++ exited with 0 +++ [pid 20588] <... close resumed>) = 0 [pid 20587] <... futex resumed>) = 1 [pid 20588] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20587] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20588] <... futex resumed>) = 0 [pid 20583] +++ exited with 0 +++ [pid 20588] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20585] <... futex resumed>) = 0 [pid 20588] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20588] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20590], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20590 [pid 20585] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20583, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20588] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20587] <... futex resumed>) = 0 [pid 20585] <... futex resumed>) = 1 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20588] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20587] pipe2( [pid 20585] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... restart_syscall resumed>) = 0 [pid 20587] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20587] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20587] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20585] <... futex resumed>) = 0 [pid 20585] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20587] <... futex resumed>) = 0 [pid 20585] <... futex resumed>) = 1 [pid 20587] dup(4 [pid 20585] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 20587] <... dup resumed>) = 5 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20587] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20587] <... futex resumed>) = 1 [pid 20585] <... futex resumed>) = 0 [pid 3604] close(3 [pid 20587] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20585] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20585] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20587] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20585] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20590 attached [pid 20589] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20590] set_robust_list(0x7f61a3ef39e0, 24 [pid 20589] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20591 [pid 20590] <... set_robust_list resumed>) = 0 [pid 20589] <... futex resumed>) = 1 [pid 20586] <... futex resumed>) = 0 [pid 20590] mkdir("./file0", 0777 [pid 20589] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20586] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20590] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20586] <... futex resumed>) = 0 [pid 20590] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20589] write(5, NULL, 176 [pid 20586] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20590] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20589] <... write resumed>) = -1 EFAULT (Bad address) [pid 20590] <... futex resumed>) = 1 [pid 20589] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20588] <... futex resumed>) = 0 [pid 20590] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20589] <... futex resumed>) = 1 [pid 20588] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20586] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20591 attached [pid 20590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20589] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20588] <... futex resumed>) = 0 [pid 20587] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20586] exit_group(0 [pid 20591] set_robust_list(0x555556ba76e0, 24 [pid 20590] pipe2( [pid 20589] <... futex resumed>) = ? [pid 20588] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20587] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20586] <... exit_group resumed>) = ? [pid 20591] <... set_robust_list resumed>) = 0 [pid 20590] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20589] +++ exited with 0 +++ [pid 20587] <... futex resumed>) = 1 [pid 20585] <... futex resumed>) = 0 [pid 20591] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20587] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20591] <... prctl resumed>) = 0 [pid 20586] +++ exited with 0 +++ [pid 20591] setpgid(0, 0 [pid 20590] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20585] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20591] <... setpgid resumed>) = 0 [pid 20590] <... futex resumed>) = 1 [pid 20588] <... futex resumed>) = 0 [pid 20587] <... futex resumed>) = 0 [pid 20585] <... futex resumed>) = 1 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20586, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20591] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20590] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20588] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20587] write(5, NULL, 176 [pid 20585] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20591] <... openat resumed>) = 3 [pid 20590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20588] <... futex resumed>) = 0 [pid 20587] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] <... openat resumed>) = 3 [pid 20591] write(3, "1000", 4 [pid 20590] dup(4 [pid 20588] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20587] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20591] <... write resumed>) = 4 [pid 20590] <... dup resumed>) = 5 [pid 20587] <... futex resumed>) = 1 [pid 20585] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20591] close(3 [pid 20590] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20587] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20585] exit_group(0 [pid 3601] close(3 [pid 20591] <... close resumed>) = 0 [pid 20590] <... futex resumed>) = 1 [pid 20588] <... futex resumed>) = 0 [pid 20587] <... futex resumed>) = ? [pid 20585] <... exit_group resumed>) = ? [pid 3601] <... close resumed>) = 0 [pid 20591] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20590] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20588] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20587] +++ exited with 0 +++ [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20591] <... futex resumed>) = 0 [pid 20590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20588] <... futex resumed>) = 0 [pid 20585] +++ exited with 0 +++ [pid 20591] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20590] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20588] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20585, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20592 [pid 20591] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20591] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20591] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20593], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20593 [pid 20591] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20591] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20594 attached ./strace-static-x86_64: Process 20593 attached ./strace-static-x86_64: Process 20592 attached [pid 20594] set_robust_list(0x555556ba76e0, 24 [pid 20593] set_robust_list(0x7f61a3ef39e0, 24 [pid 20592] set_robust_list(0x555556ba76e0, 24 [pid 20594] <... set_robust_list resumed>) = 0 [pid 20593] <... set_robust_list resumed>) = 0 [pid 20592] <... set_robust_list resumed>) = 0 [pid 20590] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20594 [pid 20593] mkdir("./file0", 0777 [pid 20592] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20590] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20593] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20592] <... prctl resumed>) = 0 [pid 20590] <... futex resumed>) = 1 [pid 20588] <... futex resumed>) = 0 [pid 20593] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20592] setpgid(0, 0 [pid 20590] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20588] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20593] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20592] <... setpgid resumed>) = 0 [pid 20590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20588] <... futex resumed>) = 0 [pid 20593] <... futex resumed>) = 1 [pid 20592] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20591] <... futex resumed>) = 0 [pid 20590] write(5, NULL, 176 [pid 20588] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20593] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20592] <... openat resumed>) = 3 [pid 20591] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20590] <... write resumed>) = -1 EFAULT (Bad address) [pid 20593] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20592] write(3, "1000", 4 [pid 20591] <... futex resumed>) = 0 [pid 20590] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20594] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20593] pipe2( [pid 20592] <... write resumed>) = 4 [pid 20591] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20590] <... futex resumed>) = 1 [pid 20588] <... futex resumed>) = 0 [pid 20594] <... prctl resumed>) = 0 [pid 20593] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20592] close(3 [pid 20590] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20588] exit_group(0 [pid 20594] setpgid(0, 0 [pid 20593] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20592] <... close resumed>) = 0 [pid 20590] <... futex resumed>) = ? [pid 20588] <... exit_group resumed>) = ? [pid 20594] <... setpgid resumed>) = 0 [pid 20593] <... futex resumed>) = 1 [pid 20592] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20591] <... futex resumed>) = 0 [pid 20590] +++ exited with 0 +++ [pid 20594] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20593] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20592] <... futex resumed>) = 0 [pid 20591] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20588] +++ exited with 0 +++ [pid 20594] <... openat resumed>) = 3 [pid 20593] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20592] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20591] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20588, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20594] write(3, "1000", 4 [pid 20593] dup(4 [pid 20592] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20591] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20594] <... write resumed>) = 4 [pid 20593] <... dup resumed>) = 5 [pid 20592] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20594] close(3 [pid 20593] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20594] <... close resumed>) = 0 [pid 20593] <... futex resumed>) = 1 [pid 20592] <... mprotect resumed>) = 0 [pid 20591] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20594] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20593] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20592] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20591] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20594] <... futex resumed>) = 0 [pid 20593] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20591] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20594] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20593] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20592] <... clone resumed>, parent_tid=[20595], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20595 [pid 20591] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20594] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20592] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3./strace-static-x86_64: Process 20595 attached [pid 20595] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20595] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20595] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20592] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20595] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20595] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20594] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20594] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20596], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20596 [pid 20594] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20594] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20592] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20596 attached ./strace-static-x86_64: Process 20597 attached [pid 20592] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20592] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20597 [pid 20596] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20593] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20593] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20592] <... futex resumed>) = 1 [pid 20593] <... futex resumed>) = 1 [pid 20592] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20591] <... futex resumed>) = 0 [pid 20593] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20591] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20596] mkdir("./file0", 0777 [pid 20595] <... futex resumed>) = 0 [pid 20596] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20595] pipe2( [pid 20593] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20591] <... futex resumed>) = 0 [pid 20597] set_robust_list(0x555556ba76e0, 24 [pid 20596] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20595] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20593] write(5, NULL, 176 [pid 20591] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20597] <... set_robust_list resumed>) = 0 [pid 20596] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20595] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20593] <... write resumed>) = -1 EFAULT (Bad address) [pid 20596] <... futex resumed>) = 1 [pid 20595] <... futex resumed>) = 1 [pid 20594] <... futex resumed>) = 0 [pid 20596] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20595] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20594] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20596] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20594] <... futex resumed>) = 0 [pid 20596] pipe2( [pid 20594] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20593] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20592] <... futex resumed>) = 0 [pid 20597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20596] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20593] <... futex resumed>) = 1 [pid 20592] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20591] <... futex resumed>) = 0 [pid 20597] setpgid(0, 0 [pid 20596] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20595] <... futex resumed>) = 0 [pid 20593] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20592] <... futex resumed>) = 1 [pid 20591] exit_group(0 [pid 20597] <... setpgid resumed>) = 0 [pid 20596] <... futex resumed>) = 1 [pid 20595] dup(4 [pid 20594] <... futex resumed>) = 0 [pid 20593] <... futex resumed>) = ? [pid 20592] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20591] <... exit_group resumed>) = ? [pid 20597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20596] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20595] <... dup resumed>) = 5 [pid 20594] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20593] +++ exited with 0 +++ [pid 20597] <... openat resumed>) = 3 [pid 20596] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20595] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20594] <... futex resumed>) = 0 [pid 20591] +++ exited with 0 +++ [pid 20597] write(3, "1000", 4 [pid 20596] dup(4 [pid 20595] <... futex resumed>) = 1 [pid 20594] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20592] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20591, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20597] <... write resumed>) = 4 [pid 20596] <... dup resumed>) = 5 [pid 20595] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20592] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20597] close(3 [pid 20596] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20595] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20592] <... futex resumed>) = 0 [pid 20597] <... close resumed>) = 0 [pid 20596] <... futex resumed>) = 1 [pid 20595] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20594] <... futex resumed>) = 0 [pid 20592] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20597] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20596] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20597] <... futex resumed>) = 0 [pid 20594] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20596] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20597] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20594] <... futex resumed>) = 0 [pid 20597] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20596] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20597] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20594] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 20597] <... mprotect resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20597] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3 [pid 20597] <... clone resumed>, parent_tid=[20598], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20598 [pid 3604] <... close resumed>) = 0 [pid 20597] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20597] <... futex resumed>) = 0 [pid 20597] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20599 ./strace-static-x86_64: Process 20599 attached [pid 20599] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20599] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20599] setpgid(0, 0) = 0 [pid 20599] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20599] write(3, "1000", 4) = 4 [pid 20599] close(3) = 0 [pid 20599] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20599] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20599] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20599] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20600], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20600 [pid 20599] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 20598 attached [pid 20599] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20598] set_robust_list(0x7f61a3ef39e0, 24./strace-static-x86_64: Process 20600 attached ) = 0 [pid 20600] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20596] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20596] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20594] <... futex resumed>) = 0 [pid 20596] write(5, NULL, 176 [pid 20594] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20596] <... write resumed>) = -1 EFAULT (Bad address) [pid 20594] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20596] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20594] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20596] <... futex resumed>) = 0 [pid 20600] mkdir("./file0", 0777 [pid 20594] exit_group(0 [pid 20596] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20600] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20596] +++ exited with 0 +++ [pid 20594] <... exit_group resumed>) = ? [pid 20600] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20600] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20599] <... futex resumed>) = 0 [pid 20600] pipe2( [pid 20599] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20594] +++ exited with 0 +++ [pid 20600] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20599] <... futex resumed>) = 0 [pid 20600] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20599] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20594, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20600] <... futex resumed>) = 0 [pid 20599] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20600] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20599] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20598] mkdir("./file0", 0777 [pid 3606] <... openat resumed>) = 3 [pid 20600] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20599] <... futex resumed>) = 0 [pid 20598] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20600] dup(4 [pid 20599] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20600] <... dup resumed>) = 5 [pid 20598] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20600] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20599] <... futex resumed>) = 0 [pid 20600] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20599] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20598] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20595] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] close(3 [pid 20600] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20599] <... futex resumed>) = 0 [pid 20598] <... futex resumed>) = 1 [pid 20597] <... futex resumed>) = 0 [pid 20595] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20598] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20595] <... futex resumed>) = 1 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20595] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20601 [pid 20600] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005"./strace-static-x86_64: Process 20601 attached ) = -1 EFAULT (Bad address) [pid 20599] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20597] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20592] <... futex resumed>) = 0 [pid 20600] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20598] <... futex resumed>) = 0 [pid 20597] <... futex resumed>) = 1 [pid 20592] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20600] <... futex resumed>) = 1 [pid 20599] <... futex resumed>) = 0 [pid 20598] pipe2( [pid 20597] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20595] <... futex resumed>) = 0 [pid 20592] <... futex resumed>) = 1 [pid 20600] write(5, NULL, 176 [pid 20599] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20598] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20595] write(5, NULL, 176 [pid 20592] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20601] set_robust_list(0x555556ba76e0, 24 [pid 20600] <... write resumed>) = -1 EFAULT (Bad address) [pid 20599] <... futex resumed>) = 0 [pid 20598] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20595] <... write resumed>) = -1 EFAULT (Bad address) [pid 20601] <... set_robust_list resumed>) = 0 [pid 20600] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20599] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20598] <... futex resumed>) = 1 [pid 20597] <... futex resumed>) = 0 [pid 20595] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20601] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20600] <... futex resumed>) = 0 [pid 20599] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20598] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20597] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20595] <... futex resumed>) = 1 [pid 20592] <... futex resumed>) = 0 [pid 20601] <... prctl resumed>) = 0 [pid 20600] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20599] exit_group(0 [pid 20598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20597] <... futex resumed>) = 0 [pid 20595] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20592] exit_group(0 [pid 20601] setpgid(0, 0 [pid 20600] <... futex resumed>) = ? [pid 20599] <... exit_group resumed>) = ? [pid 20598] dup(4 [pid 20597] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20595] <... futex resumed>) = ? [pid 20592] <... exit_group resumed>) = ? [pid 20601] <... setpgid resumed>) = 0 [pid 20600] +++ exited with 0 +++ [pid 20599] +++ exited with 0 +++ [pid 20598] <... dup resumed>) = 5 [pid 20595] +++ exited with 0 +++ [pid 20601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20598] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20601] <... openat resumed>) = 3 [pid 20598] <... futex resumed>) = 1 [pid 20597] <... futex resumed>) = 0 [pid 20592] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20599, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20601] write(3, "1000", 4 [pid 20598] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20597] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20592, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20601] <... write resumed>) = 4 [pid 20598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20597] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20601] close(3 [pid 20598] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20597] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] <... restart_syscall resumed>) = 0 [pid 20601] <... close resumed>) = 0 [pid 20601] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20601] <... futex resumed>) = 0 [pid 20601] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] close(3 [pid 3601] <... openat resumed>) = 3 [pid 20601] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3604] <... close resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20601] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20602 ./strace-static-x86_64: Process 20602 attached [pid 20601] <... mprotect resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20602] set_robust_list(0x555556ba76e0, 24 [pid 20601] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20598] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20602] <... set_robust_list resumed>) = 0 [pid 20598] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20603 ./strace-static-x86_64: Process 20604 attached ./strace-static-x86_64: Process 20603 attached [pid 20602] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20601] <... clone resumed>, parent_tid=[20604], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20604 [pid 20598] <... futex resumed>) = 1 [pid 20597] <... futex resumed>) = 0 [pid 20602] <... prctl resumed>) = 0 [pid 20601] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20597] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20602] setpgid(0, 0 [pid 20601] <... futex resumed>) = 0 [pid 20597] <... futex resumed>) = 0 [pid 20602] <... setpgid resumed>) = 0 [pid 20601] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20597] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20598] write(5, NULL, 176 [pid 20604] set_robust_list(0x7f61a3ef39e0, 24 [pid 20603] set_robust_list(0x555556ba76e0, 24 [pid 20602] <... openat resumed>) = 3 [pid 20598] <... write resumed>) = -1 EFAULT (Bad address) [pid 20603] <... set_robust_list resumed>) = 0 [pid 20602] write(3, "1000", 4 [pid 20598] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20602] <... write resumed>) = 4 [pid 20598] <... futex resumed>) = 1 [pid 20597] <... futex resumed>) = 0 [pid 20603] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20602] close(3 [pid 20598] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20597] exit_group(0 [pid 20604] <... set_robust_list resumed>) = 0 [pid 20603] <... prctl resumed>) = 0 [pid 20602] <... close resumed>) = 0 [pid 20598] <... futex resumed>) = ? [pid 20597] <... exit_group resumed>) = ? [pid 20604] mkdir("./file0", 0777 [pid 20603] setpgid(0, 0 [pid 20602] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20598] +++ exited with 0 +++ [pid 20597] +++ exited with 0 +++ [pid 20603] <... setpgid resumed>) = 0 [pid 20602] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20597, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20604] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20602] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20602] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20604] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20603] <... openat resumed>) = 3 [pid 20602] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20604] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20603] write(3, "1000", 4 [pid 20602] <... mprotect resumed>) = 0 [pid 20604] <... futex resumed>) = 1 [pid 20603] <... write resumed>) = 4 [pid 20602] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20601] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20604] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20603] close(3 [pid 20601] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20605 attached [pid 20604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20603] <... close resumed>) = 0 [pid 20602] <... clone resumed>, parent_tid=[20605], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20605 [pid 20601] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20604] pipe2( [pid 20603] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20602] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20605] set_robust_list(0x7f61a3ef39e0, 24 [pid 20601] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20604] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20603] <... futex resumed>) = 0 [pid 20602] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20604] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20603] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20602] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] <... close resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20606 ./strace-static-x86_64: Process 20606 attached [pid 20606] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20604] <... futex resumed>) = 1 [pid 20603] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20601] <... futex resumed>) = 0 [pid 20604] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20603] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20601] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20603] <... mprotect resumed>) = 0 [pid 20601] <... futex resumed>) = 0 [pid 20604] dup(4 [pid 20603] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20601] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20604] <... dup resumed>) = 5 [pid 20604] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20603] <... clone resumed>, parent_tid=[20607], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20607 [pid 20604] <... futex resumed>) = 1 [pid 20603] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20601] <... futex resumed>) = 0 [pid 20604] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20603] <... futex resumed>) = 0 [pid 20601] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20606] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20601] <... futex resumed>) = 0 [pid 20603] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20606] <... prctl resumed>) = 0 [pid 20604] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20601] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20606] setpgid(0, 0) = 0 [pid 20606] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20606] write(3, "1000", 4) = 4 [pid 20606] close(3./strace-static-x86_64: Process 20607 attached ) = 0 [pid 20607] set_robust_list(0x7f61a3ef39e0, 24 [pid 20606] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20607] <... set_robust_list resumed>) = 0 [pid 20606] <... futex resumed>) = 0 [pid 20607] mkdir("./file0", 0777 [pid 20606] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20607] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20606] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20607] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20606] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20607] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20606] <... mprotect resumed>) = 0 [pid 20607] <... futex resumed>) = 1 [pid 20606] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20607] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20606] <... clone resumed>, parent_tid=[20608], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20608 [pid 20606] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20606] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20608 attached [pid 20608] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20608] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20608] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20608] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20606] <... futex resumed>) = 0 [pid 20606] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20606] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20608] <... futex resumed>) = 1 [pid 20608] pipe2([3, 4], 0) = 0 [pid 20608] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20606] <... futex resumed>) = 0 [pid 20606] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20608] <... futex resumed>) = 1 [pid 20606] <... futex resumed>) = 0 [pid 20608] dup(4 [pid 20606] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20608] <... dup resumed>) = 5 [pid 20608] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20606] <... futex resumed>) = 0 [pid 20605] <... set_robust_list resumed>) = 0 [pid 20603] <... futex resumed>) = 0 [pid 20608] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20606] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20605] mkdir("./file0", 0777 [pid 20603] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20607] <... futex resumed>) = 0 [pid 20606] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20605] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20603] <... futex resumed>) = 1 [pid 20607] pipe2( [pid 20605] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20603] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20607] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20605] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20607] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20605] <... futex resumed>) = 1 [pid 20602] <... futex resumed>) = 0 [pid 20607] <... futex resumed>) = 1 [pid 20603] <... futex resumed>) = 0 [pid 20602] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20607] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20605] pipe2( [pid 20603] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20602] <... futex resumed>) = 0 [pid 20607] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20603] <... futex resumed>) = 0 [pid 20605] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20602] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20607] dup(4 [pid 20603] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20605] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20607] <... dup resumed>) = 5 [pid 20605] <... futex resumed>) = 1 [pid 20602] <... futex resumed>) = 0 [pid 20607] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20605] dup(4 [pid 20602] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20607] <... futex resumed>) = 1 [pid 20605] <... dup resumed>) = 5 [pid 20603] <... futex resumed>) = 0 [pid 20602] <... futex resumed>) = 0 [pid 20607] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20605] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20603] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20602] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20607] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20602] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20607] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20605] <... futex resumed>) = 0 [pid 20603] <... futex resumed>) = 0 [pid 20602] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20605] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20603] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20602] <... futex resumed>) = 0 [pid 20602] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20604] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20604] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20601] <... futex resumed>) = 0 [pid 20604] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20601] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20601] <... futex resumed>) = 0 [pid 20604] write(5, NULL, 176 [pid 20601] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20604] <... write resumed>) = -1 EFAULT (Bad address) [pid 20604] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20601] <... futex resumed>) = 0 [pid 20604] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20601] exit_group(0 [pid 20604] <... futex resumed>) = ? [pid 20601] <... exit_group resumed>) = ? [pid 20608] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20607] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20604] +++ exited with 0 +++ [pid 20601] +++ exited with 0 +++ [pid 20608] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20607] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20605] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20608] <... futex resumed>) = 1 [pid 20607] <... futex resumed>) = 1 [pid 20606] <... futex resumed>) = 0 [pid 20605] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20603] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20601, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20608] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20607] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20606] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20605] <... futex resumed>) = 1 [pid 20603] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20602] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20607] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20606] <... futex resumed>) = 0 [pid 20605] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20603] <... futex resumed>) = 0 [pid 20602] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 20608] write(5, NULL, 176 [pid 20607] write(5, NULL, 176 [pid 20606] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20605] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20603] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20602] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20608] <... write resumed>) = -1 EFAULT (Bad address) [pid 20607] <... write resumed>) = -1 EFAULT (Bad address) [pid 20605] write(5, NULL, 176 [pid 20602] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20608] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20607] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20605] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] close(3 [pid 20608] <... futex resumed>) = 1 [pid 20607] <... futex resumed>) = 1 [pid 20606] <... futex resumed>) = 0 [pid 20605] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20603] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20608] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20607] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20606] exit_group(0 [pid 20605] <... futex resumed>) = 1 [pid 20603] exit_group(0 [pid 20602] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20608] <... futex resumed>) = ? [pid 20607] <... futex resumed>) = ? [pid 20606] <... exit_group resumed>) = ? [pid 20605] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20603] <... exit_group resumed>) = ? [pid 20602] exit_group(0 [pid 20608] +++ exited with 0 +++ [pid 20607] +++ exited with 0 +++ [pid 20606] +++ exited with 0 +++ [pid 20605] <... futex resumed>) = ? [pid 20603] +++ exited with 0 +++ [pid 20602] <... exit_group resumed>) = ? [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20609 [pid 20605] +++ exited with 0 +++ ./strace-static-x86_64: Process 20609 attached [pid 20609] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20609] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20602] +++ exited with 0 +++ [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20602, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20606, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20603, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3607] <... openat resumed>) = 3 [pid 3604] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3607] close(3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... openat resumed>) = 3 [pid 3607] <... close resumed>) = 0 [pid 3604] close(3 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3604] <... close resumed>) = 0 [pid 20609] <... prctl resumed>) = 0 [pid 20609] setpgid(0, 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20610 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20609] <... setpgid resumed>) = 0 [pid 20609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20611 [pid 3601] close(3 [pid 20609] write(3, "1000", 4) = 4 [pid 3601] <... close resumed>) = 0 [pid 20609] close(3 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20609] <... close resumed>) = 0 [pid 20609] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20610 attached ) = 0 [pid 20610] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20609] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20610] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20609] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20612 [pid 20610] <... prctl resumed>) = 0 [pid 20609] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20610] setpgid(0, 0 [pid 20609] <... mprotect resumed>) = 0 [pid 20610] <... setpgid resumed>) = 0 [pid 20609] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20610] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20609] <... clone resumed>, parent_tid=[20613], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20613 ./strace-static-x86_64: Process 20611 attached [pid 20610] write(3, "1000", 4 [pid 20609] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20610] <... write resumed>) = 4 [pid 20609] <... futex resumed>) = 0 [pid 20611] set_robust_list(0x555556ba76e0, 24 [pid 20610] close(3 [pid 20609] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20610] <... close resumed>) = 0 [pid 20611] <... set_robust_list resumed>) = 0 [pid 20610] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20612 attached ) = 0 [pid 20611] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20610] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20612] set_robust_list(0x555556ba76e0, 24 [pid 20611] <... prctl resumed>) = 0 [pid 20610] <... mmap resumed>) = 0x7f61a3ed3000 ./strace-static-x86_64: Process 20613 attached [pid 20611] setpgid(0, 0 [pid 20610] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20613] set_robust_list(0x7f61a3ef39e0, 24 [pid 20612] <... set_robust_list resumed>) = 0 [pid 20611] <... setpgid resumed>) = 0 [pid 20610] <... mprotect resumed>) = 0 [pid 20613] <... set_robust_list resumed>) = 0 [pid 20610] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20613] mkdir("./file0", 0777 [pid 20612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20613] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20610] <... clone resumed>, parent_tid=[20614], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20614 [pid 20613] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20612] <... prctl resumed>) = 0 [pid 20611] <... openat resumed>) = 3 [pid 20610] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20613] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20610] <... futex resumed>) = 0 [pid 20613] <... futex resumed>) = 1 [pid 20612] setpgid(0, 0 [pid 20611] write(3, "1000", 4 [pid 20610] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20609] <... futex resumed>) = 0 [pid 20613] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20609] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20612] <... setpgid resumed>) = 0 [pid 20613] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20611] <... write resumed>) = 4 [pid 20609] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20614 attached [pid 20613] pipe2( [pid 20609] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20614] set_robust_list(0x7f61a3ef39e0, 24 [pid 20613] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20611] close(3 [pid 20614] <... set_robust_list resumed>) = 0 [pid 20613] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20611] <... close resumed>) = 0 [pid 20614] mkdir("./file0", 0777 [pid 20613] <... futex resumed>) = 1 [pid 20612] <... openat resumed>) = 3 [pid 20611] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20609] <... futex resumed>) = 0 [pid 20614] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20613] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20612] write(3, "1000", 4 [pid 20611] <... futex resumed>) = 0 [pid 20609] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20614] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20613] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20609] <... futex resumed>) = 0 [pid 20614] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20613] dup(4 [pid 20612] <... write resumed>) = 4 [pid 20609] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20611] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20614] <... futex resumed>) = 1 [pid 20613] <... dup resumed>) = 5 [pid 20612] close(3 [pid 20611] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20610] <... futex resumed>) = 0 [pid 20614] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20613] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20612] <... close resumed>) = 0 [pid 20611] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20610] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20614] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20613] <... futex resumed>) = 1 [pid 20612] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20611] <... mprotect resumed>) = 0 [pid 20610] <... futex resumed>) = 0 [pid 20609] <... futex resumed>) = 0 [pid 20614] pipe2( [pid 20613] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20612] <... futex resumed>) = 0 [pid 20611] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20610] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20609] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20614] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20613] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20612] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20609] <... futex resumed>) = 0 [pid 20614] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20613] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20612] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20611] <... clone resumed>, parent_tid=[20615], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20615 [pid 20609] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20615 attached [pid 20614] <... futex resumed>) = 1 [pid 20612] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20611] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20610] <... futex resumed>) = 0 [pid 20615] set_robust_list(0x7f61a3ef39e0, 24 [pid 20614] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20612] <... mprotect resumed>) = 0 [pid 20611] <... futex resumed>) = 0 [pid 20610] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20615] <... set_robust_list resumed>) = 0 [pid 20614] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20613] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20612] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20611] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20610] <... futex resumed>) = 0 [pid 20615] mkdir("./file0", 0777 [pid 20614] dup(4 [pid 20613] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20610] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20615] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20614] <... dup resumed>) = 5 [pid 20613] <... futex resumed>) = 1 [pid 20612] <... clone resumed>, parent_tid=[20616], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20616 [pid 20609] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20616 attached [pid 20615] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20614] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20613] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20612] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20609] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20616] set_robust_list(0x7f61a3ef39e0, 24 [pid 20615] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20614] <... futex resumed>) = 1 [pid 20613] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20612] <... futex resumed>) = 0 [pid 20610] <... futex resumed>) = 0 [pid 20609] <... futex resumed>) = 0 [pid 20616] <... set_robust_list resumed>) = 0 [pid 20615] <... futex resumed>) = 1 [pid 20614] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20613] write(5, NULL, 176 [pid 20612] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20611] <... futex resumed>) = 0 [pid 20610] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20609] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20616] mkdir("./file0", 0777 [pid 20615] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20614] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20613] <... write resumed>) = -1 EFAULT (Bad address) [pid 20611] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20610] <... futex resumed>) = 0 [pid 20616] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20614] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20613] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20611] <... futex resumed>) = 0 [pid 20610] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20616] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20615] pipe2( [pid 20613] <... futex resumed>) = 1 [pid 20611] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20609] <... futex resumed>) = 0 [pid 20616] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20615] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20613] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20609] exit_group(0 [pid 20616] <... futex resumed>) = 1 [pid 20615] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20612] <... futex resumed>) = 0 [pid 20613] <... futex resumed>) = ? [pid 20609] <... exit_group resumed>) = ? [pid 20616] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20615] <... futex resumed>) = 1 [pid 20613] +++ exited with 0 +++ [pid 20612] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20611] <... futex resumed>) = 0 [pid 20616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20615] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20612] <... futex resumed>) = 0 [pid 20611] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20616] pipe2( [pid 20615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20612] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20611] <... futex resumed>) = 0 [pid 20616] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20615] dup(4 [pid 20611] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20616] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20615] <... dup resumed>) = 5 [pid 20616] <... futex resumed>) = 1 [pid 20615] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20612] <... futex resumed>) = 0 [pid 20616] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20615] <... futex resumed>) = 1 [pid 20612] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20611] <... futex resumed>) = 0 [pid 20616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20615] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20612] <... futex resumed>) = 0 [pid 20611] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20616] dup(4 [pid 20615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20612] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20611] <... futex resumed>) = 0 [pid 20616] <... dup resumed>) = 5 [pid 20615] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20611] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20616] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20612] <... futex resumed>) = 0 [pid 20616] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20612] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20612] <... futex resumed>) = 0 [pid 20616] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20612] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20609] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20609, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20617 ./strace-static-x86_64: Process 20617 attached [pid 20617] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20617] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20614] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20614] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20610] <... futex resumed>) = 0 [pid 20610] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20610] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20614] <... futex resumed>) = 1 [pid 20614] write(5, NULL, 176) = -1 EFAULT (Bad address) [pid 20614] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20610] <... futex resumed>) = 0 [pid 20610] exit_group(0) = ? [pid 20614] <... futex resumed>) = ? [pid 20614] +++ exited with 0 +++ [pid 20610] +++ exited with 0 +++ [pid 20617] setpgid(0, 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20610, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20617] <... setpgid resumed>) = 0 [pid 20615] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20617] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20615] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20617] <... openat resumed>) = 3 [pid 20616] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20615] <... futex resumed>) = 1 [pid 20611] <... futex resumed>) = 0 [pid 20617] write(3, "1000", 4 [pid 20616] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20615] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20611] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20617] <... write resumed>) = 4 [pid 20616] <... futex resumed>) = 1 [pid 20615] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20612] <... futex resumed>) = 0 [pid 20611] <... futex resumed>) = 0 [pid 20617] close(3 [pid 20616] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20615] write(5, NULL, 176 [pid 20612] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20611] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20617] <... close resumed>) = 0 [pid 20616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20615] <... write resumed>) = -1 EFAULT (Bad address) [pid 20612] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20617] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20616] write(5, NULL, 176 [pid 20615] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20612] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... openat resumed>) = 3 [pid 20617] <... futex resumed>) = 0 [pid 20616] <... write resumed>) = -1 EFAULT (Bad address) [pid 20615] <... futex resumed>) = 1 [pid 20611] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20617] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20616] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20615] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20611] exit_group(0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20617] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20616] <... futex resumed>) = 1 [pid 20615] <... futex resumed>) = ? [pid 20612] <... futex resumed>) = 0 [pid 20611] <... exit_group resumed>) = ? [pid 3607] close(3 [pid 20617] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20616] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20615] +++ exited with 0 +++ [pid 20612] exit_group(0 [pid 3607] <... close resumed>) = 0 [pid 20617] <... mprotect resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20611] +++ exited with 0 +++ [pid 20617] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20611, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20618 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20617] <... clone resumed>, parent_tid=[20619], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20619 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20617] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20617] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20620 ./strace-static-x86_64: Process 20618 attached [pid 20618] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20618] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20618] setpgid(0, 0) = 0 [pid 20618] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20616] <... futex resumed>) = ? [pid 20612] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20620 attached [pid 20618] write(3, "1000", 4 [pid 20616] +++ exited with 0 +++ [pid 20620] set_robust_list(0x555556ba76e0, 24 [pid 20618] <... write resumed>) = 4 [pid 20612] +++ exited with 0 +++ [pid 20620] <... set_robust_list resumed>) = 0 [pid 20618] close(3 [pid 20620] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20618] <... close resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20612, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20620] <... prctl resumed>) = 0 [pid 20618] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20620] setpgid(0, 0 [pid 20618] <... futex resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20620] <... setpgid resumed>) = 0 [pid 20618] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20618] <... mmap resumed>) = 0x7f61a3ed3000 ./strace-static-x86_64: Process 20619 attached [pid 20620] <... openat resumed>) = 3 [pid 20618] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20620] write(3, "1000", 4 [pid 20619] set_robust_list(0x7f61a3ef39e0, 24 [pid 20618] <... mprotect resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20620] <... write resumed>) = 4 [pid 20619] <... set_robust_list resumed>) = 0 [pid 20618] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20621 attached [pid 20620] close(3 [pid 20619] mkdir("./file0", 0777 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20620] <... close resumed>) = 0 [pid 20618] <... clone resumed>, parent_tid=[20621], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20621 [pid 3601] close(3 [pid 20620] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20619] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20618] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20621] set_robust_list(0x7f61a3ef39e0, 24 [pid 20620] <... futex resumed>) = 0 [pid 20619] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20618] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20622 attached [pid 20621] <... set_robust_list resumed>) = 0 [pid 20620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20619] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20618] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20621] mkdir("./file0", 0777 [pid 20620] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20619] <... futex resumed>) = 1 [pid 20617] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20622 [pid 20621] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20620] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20619] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20617] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20622] set_robust_list(0x555556ba76e0, 24 [pid 20621] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20620] <... mprotect resumed>) = 0 [pid 20619] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20617] <... futex resumed>) = 0 [pid 20621] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20620] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20619] pipe2( [pid 20617] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20622] <... set_robust_list resumed>) = 0 [pid 20621] <... futex resumed>) = 1 [pid 20619] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20618] <... futex resumed>) = 0 [pid 20621] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20620] <... clone resumed>, parent_tid=[20623], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20623 [pid 20619] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20618] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20623 attached [pid 20622] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20620] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20619] <... futex resumed>) = 1 [pid 20618] <... futex resumed>) = 0 [pid 20617] <... futex resumed>) = 0 [pid 20623] set_robust_list(0x7f61a3ef39e0, 24 [pid 20622] <... prctl resumed>) = 0 [pid 20621] pipe2( [pid 20620] <... futex resumed>) = 0 [pid 20619] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20618] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20617] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20623] <... set_robust_list resumed>) = 0 [pid 20622] setpgid(0, 0 [pid 20621] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20620] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20619] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20617] <... futex resumed>) = 0 [pid 20622] <... setpgid resumed>) = 0 [pid 20621] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20619] dup(4 [pid 20617] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20621] <... futex resumed>) = 1 [pid 20619] <... dup resumed>) = 5 [pid 20618] <... futex resumed>) = 0 [pid 20623] mkdir("./file0", 0777 [pid 20622] <... openat resumed>) = 3 [pid 20621] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20619] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20618] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20623] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20622] write(3, "1000", 4 [pid 20621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20619] <... futex resumed>) = 1 [pid 20618] <... futex resumed>) = 0 [pid 20617] <... futex resumed>) = 0 [pid 20623] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20622] <... write resumed>) = 4 [pid 20621] dup(4 [pid 20619] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20618] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20617] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20623] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20622] close(3 [pid 20621] <... dup resumed>) = 5 [pid 20619] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20617] <... futex resumed>) = 0 [pid 20623] <... futex resumed>) = 1 [pid 20622] <... close resumed>) = 0 [pid 20621] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20620] <... futex resumed>) = 0 [pid 20619] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20617] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20623] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20622] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20621] <... futex resumed>) = 1 [pid 20620] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20618] <... futex resumed>) = 0 [pid 20620] <... futex resumed>) = 0 [pid 20618] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20621] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20620] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20618] <... futex resumed>) = 0 [pid 20622] <... futex resumed>) = 0 [pid 20618] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20623] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20623] pipe2([3, 4], 0) = 0 [pid 20623] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20622] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20623] <... futex resumed>) = 1 [pid 20622] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20620] <... futex resumed>) = 0 [pid 20623] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20620] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20623] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20620] <... futex resumed>) = 0 [pid 20623] dup(4 [pid 20622] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20620] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20623] <... dup resumed>) = 5 [pid 20622] <... mprotect resumed>) = 0 [pid 20623] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20620] <... futex resumed>) = 0 [pid 20623] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20620] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20623] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20620] <... futex resumed>) = 0 [pid 20623] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20620] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20622] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20624 attached , parent_tid=[20624], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20624 [pid 20622] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20622] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20624] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20624] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20624] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20619] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20624] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20622] <... futex resumed>) = 0 [pid 20619] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20624] pipe2( [pid 20622] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20619] <... futex resumed>) = 1 [pid 20617] <... futex resumed>) = 0 [pid 20624] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20622] <... futex resumed>) = 0 [pid 20619] write(5, NULL, 176 [pid 20617] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20624] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20622] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20619] <... write resumed>) = -1 EFAULT (Bad address) [pid 20617] <... futex resumed>) = 0 [pid 20624] <... futex resumed>) = 0 [pid 20622] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20621] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20617] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20624] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20623] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20622] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20621] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20619] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20623] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20622] <... futex resumed>) = 0 [pid 20621] <... futex resumed>) = 1 [pid 20619] <... futex resumed>) = 0 [pid 20618] <... futex resumed>) = 0 [pid 20617] exit_group(0 [pid 20624] dup(4 [pid 20623] <... futex resumed>) = 1 [pid 20622] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20621] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20620] <... futex resumed>) = 0 [pid 20618] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20617] <... exit_group resumed>) = ? [pid 20624] <... dup resumed>) = 5 [pid 20623] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20620] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20618] <... futex resumed>) = 0 [pid 20624] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20620] <... futex resumed>) = 0 [pid 20618] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20624] <... futex resumed>) = 1 [pid 20623] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20622] <... futex resumed>) = 0 [pid 20621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20620] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20619] +++ exited with 0 +++ [pid 20617] +++ exited with 0 +++ [pid 20624] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20623] write(5, NULL, 176 [pid 20622] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20617, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20623] <... write resumed>) = -1 EFAULT (Bad address) [pid 20622] <... futex resumed>) = 0 [pid 20621] write(5, NULL, 176 [pid 20624] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20623] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20622] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20621] <... write resumed>) = -1 EFAULT (Bad address) [pid 20623] <... futex resumed>) = 1 [pid 20621] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20623] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20621] <... futex resumed>) = 1 [pid 20620] <... futex resumed>) = 0 [pid 20621] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20618] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20620] exit_group(0 [pid 20623] <... futex resumed>) = ? [pid 20620] <... exit_group resumed>) = ? [pid 20618] exit_group(0 [pid 20623] +++ exited with 0 +++ [pid 20620] +++ exited with 0 +++ [pid 3606] <... openat resumed>) = 3 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20620, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20621] <... futex resumed>) = ? [pid 20618] <... exit_group resumed>) = ? [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20621] +++ exited with 0 +++ [pid 20618] +++ exited with 0 +++ [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20618, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3606] close(3 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3607] <... restart_syscall resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20625 attached [pid 3607] <... openat resumed>) = 3 [pid 3604] close(3 [pid 20625] set_robust_list(0x555556ba76e0, 24 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20625 [pid 3604] <... close resumed>) = 0 [pid 20625] <... set_robust_list resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20625] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3607] close(3 [pid 20625] <... prctl resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20626 [pid 20625] setpgid(0, 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20625] <... setpgid resumed>) = 0 [pid 20625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20627 ./strace-static-x86_64: Process 20627 attached [pid 20625] <... openat resumed>) = 3 [pid 20625] write(3, "1000", 4) = 4 [pid 20624] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20625] close(3) = 0 [pid 20625] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20624] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20627] set_robust_list(0x555556ba76e0, 24 [pid 20625] <... futex resumed>) = 0 [pid 20624] <... futex resumed>) = 1 [pid 20622] <... futex resumed>) = 0 [pid 20627] <... set_robust_list resumed>) = 0 [pid 20625] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20624] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20622] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20626 attached [pid 20627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20625] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20622] <... futex resumed>) = 0 [pid 20627] <... prctl resumed>) = 0 [pid 20626] set_robust_list(0x555556ba76e0, 24 [pid 20625] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20624] write(5, NULL, 176 [pid 20622] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20627] setpgid(0, 0 [pid 20626] <... set_robust_list resumed>) = 0 [pid 20625] <... mprotect resumed>) = 0 [pid 20624] <... write resumed>) = -1 EFAULT (Bad address) [pid 20627] <... setpgid resumed>) = 0 [pid 20626] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20625] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20624] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20626] <... prctl resumed>) = 0 [pid 20624] <... futex resumed>) = 1 [pid 20622] <... futex resumed>) = 0 [pid 20627] <... openat resumed>) = 3 [pid 20626] setpgid(0, 0 [pid 20625] <... clone resumed>, parent_tid=[20628], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20628 [pid 20624] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20622] exit_group(0 [pid 20627] write(3, "1000", 4 [pid 20626] <... setpgid resumed>) = 0 [pid 20625] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20624] <... futex resumed>) = ? [pid 20622] <... exit_group resumed>) = ? [pid 20627] <... write resumed>) = 4 [pid 20626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20625] <... futex resumed>) = 0 [pid 20626] <... openat resumed>) = 3 [pid 20625] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20628 attached [pid 20626] write(3, "1000", 4 [pid 20628] set_robust_list(0x7f61a3ef39e0, 24 [pid 20626] <... write resumed>) = 4 [pid 20628] <... set_robust_list resumed>) = 0 [pid 20626] close(3 [pid 20628] mkdir("./file0", 0777 [pid 20626] <... close resumed>) = 0 [pid 20628] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20626] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20628] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20626] <... futex resumed>) = 0 [pid 20628] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20626] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20628] <... futex resumed>) = 1 [pid 20626] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20625] <... futex resumed>) = 0 [pid 20628] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20626] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20625] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20624] +++ exited with 0 +++ [pid 20628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20626] <... mprotect resumed>) = 0 [pid 20625] <... futex resumed>) = 0 [pid 20628] pipe2( [pid 20626] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20625] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20622] +++ exited with 0 +++ [pid 20628] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20627] close(3 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20622, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20628] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20627] <... close resumed>) = 0 [pid 20626] <... clone resumed>, parent_tid=[20629], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20629 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20628] <... futex resumed>) = 1 [pid 20627] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20626] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20625] <... futex resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20628] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20627] <... futex resumed>) = 0 [pid 20626] <... futex resumed>) = 0 [pid 20625] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20627] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20626] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20625] <... futex resumed>) = 0 [pid 20628] dup(4 [pid 20627] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20625] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20628] <... dup resumed>) = 5 [pid 20627] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] <... openat resumed>) = 3 [pid 20628] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20627] <... mprotect resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20628] <... futex resumed>) = 1 [pid 20627] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20625] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20628] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20625] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 20628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20627] <... clone resumed>, parent_tid=[20630], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20630 [pid 20625] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 ./strace-static-x86_64: Process 20629 attached [pid 20628] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20627] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20625] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20630 attached [pid 20629] set_robust_list(0x7f61a3ef39e0, 24 [pid 20627] <... futex resumed>) = 0 [pid 20630] set_robust_list(0x7f61a3ef39e0, 24 [pid 20629] <... set_robust_list resumed>) = 0 [pid 20627] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20630] <... set_robust_list resumed>) = 0 [pid 20629] mkdir("./file0", 0777 [pid 20630] mkdir("./file0", 0777 [pid 20629] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20631 [pid 20630] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20629] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20630] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20629] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20630] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20629] <... futex resumed>) = 1 [pid 20626] <... futex resumed>) = 0 [pid 20630] <... futex resumed>) = 1 [pid 20629] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20627] <... futex resumed>) = 0 [pid 20630] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20627] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20630] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20627] <... futex resumed>) = 0 [pid 20630] pipe2( [pid 20627] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20630] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20630] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20627] <... futex resumed>) = 0 [pid 20630] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20627] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20630] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20627] <... futex resumed>) = 0 [pid 20630] dup(4 [pid 20627] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20630] <... dup resumed>) = 5 [pid 20630] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20627] <... futex resumed>) = 0 [pid 20630] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20627] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20630] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20627] <... futex resumed>) = 0 [pid 20630] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20627] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20631 attached [pid 20626] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20631] set_robust_list(0x555556ba76e0, 24 [pid 20629] <... futex resumed>) = 0 [pid 20628] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20626] <... futex resumed>) = 1 [pid 20631] <... set_robust_list resumed>) = 0 [pid 20629] pipe2( [pid 20628] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20626] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20629] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20628] <... futex resumed>) = 1 [pid 20625] <... futex resumed>) = 0 [pid 20631] <... prctl resumed>) = 0 [pid 20629] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20628] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20625] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20631] setpgid(0, 0 [pid 20628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20625] <... futex resumed>) = 0 [pid 20631] <... setpgid resumed>) = 0 [pid 20628] write(5, NULL, 176 [pid 20625] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20628] <... write resumed>) = -1 EFAULT (Bad address) [pid 20631] <... openat resumed>) = 3 [pid 20628] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20631] write(3, "1000", 4 [pid 20628] <... futex resumed>) = 1 [pid 20625] <... futex resumed>) = 0 [pid 20631] <... write resumed>) = 4 [pid 20628] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20625] exit_group(0 [pid 20631] close(3 [pid 20628] <... futex resumed>) = ? [pid 20625] <... exit_group resumed>) = ? [pid 20631] <... close resumed>) = 0 [pid 20629] <... futex resumed>) = 1 [pid 20628] +++ exited with 0 +++ [pid 20626] <... futex resumed>) = 0 [pid 20625] +++ exited with 0 +++ [pid 20631] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20625, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20626] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20629] dup(4 [pid 20631] <... futex resumed>) = 0 [pid 20626] <... futex resumed>) = 0 [pid 20629] <... dup resumed>) = 5 [pid 20631] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20629] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20626] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20631] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20630] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20629] <... futex resumed>) = 0 [pid 20626] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20631] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20630] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20629] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20626] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 20631] <... mprotect resumed>) = 0 [pid 20630] <... futex resumed>) = 1 [pid 20629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20627] <... futex resumed>) = 0 [pid 20626] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20631] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20630] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20629] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20627] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20626] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 20631] <... clone resumed>, parent_tid=[20632], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20632 [pid 3606] <... close resumed>) = 0 [pid 20631] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20627] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20631] <... futex resumed>) = 0 [pid 20631] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20627] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20633 [pid 20630] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 20633 attached [pid 20630] write(5, NULL, 176) = -1 EFAULT (Bad address) [pid 20630] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20633] set_robust_list(0x555556ba76e0, 24./strace-static-x86_64: Process 20632 attached ) = 0 [pid 20633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20632] set_robust_list(0x7f61a3ef39e0, 24 [pid 20630] <... futex resumed>) = 1 [pid 20629] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20627] <... futex resumed>) = 0 [pid 20633] <... prctl resumed>) = 0 [pid 20632] <... set_robust_list resumed>) = 0 [pid 20630] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20629] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20627] exit_group(0 [pid 20633] setpgid(0, 0 [pid 20632] mkdir("./file0", 0777 [pid 20630] <... futex resumed>) = ? [pid 20629] <... futex resumed>) = 1 [pid 20627] <... exit_group resumed>) = ? [pid 20626] <... futex resumed>) = 0 [pid 20633] <... setpgid resumed>) = 0 [pid 20632] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20630] +++ exited with 0 +++ [pid 20633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20632] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20627] +++ exited with 0 +++ [pid 20626] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20633] <... openat resumed>) = 3 [pid 20632] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20629] write(5, NULL, 176 [pid 20626] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20627, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20633] write(3, "1000", 4 [pid 20632] <... futex resumed>) = 1 [pid 20631] <... futex resumed>) = 0 [pid 20629] <... write resumed>) = -1 EFAULT (Bad address) [pid 20626] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20633] <... write resumed>) = 4 [pid 20632] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20631] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20629] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20626] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... restart_syscall resumed>) = 0 [pid 20633] close(3 [pid 20632] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20631] <... futex resumed>) = 0 [pid 20629] <... futex resumed>) = 0 [pid 20626] exit_group(0 [pid 20633] <... close resumed>) = 0 [pid 20632] pipe2( [pid 20631] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20626] <... exit_group resumed>) = ? [pid 20633] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20632] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20633] <... futex resumed>) = 0 [pid 20632] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20633] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20632] <... futex resumed>) = 1 [pid 20631] <... futex resumed>) = 0 [pid 20629] +++ exited with 0 +++ [pid 20626] +++ exited with 0 +++ [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20633] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20632] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20631] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20626, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20633] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20632] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20631] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20633] <... mprotect resumed>) = 0 [pid 20632] dup(4 [pid 20631] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 20633] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20632] <... dup resumed>) = 5 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20632] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20633] <... clone resumed>, parent_tid=[20634], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20634 [pid 20632] <... futex resumed>) = 1 [pid 20631] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20635 [pid 20633] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20632] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20631] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20633] <... futex resumed>) = 0 [pid 20632] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20631] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20633] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20632] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20631] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20635 attached ./strace-static-x86_64: Process 20634 attached [pid 20635] set_robust_list(0x555556ba76e0, 24 [pid 20634] set_robust_list(0x7f61a3ef39e0, 24 [pid 20635] <... set_robust_list resumed>) = 0 [pid 20634] <... set_robust_list resumed>) = 0 [pid 20635] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20634] mkdir("./file0", 0777 [pid 20635] <... prctl resumed>) = 0 [pid 20634] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20635] setpgid(0, 0 [pid 20634] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20635] <... setpgid resumed>) = 0 [pid 20634] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20634] <... futex resumed>) = 1 [pid 20633] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20633] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20633] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20633] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20634] pipe2([3, 4], 0) = 0 [pid 20632] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20636 [pid 20634] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20632] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20635] <... openat resumed>) = 3 [pid 20634] <... futex resumed>) = 1 [pid 20633] <... futex resumed>) = 0 [pid 20632] <... futex resumed>) = 1 [pid 20631] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20636 attached [pid 20635] write(3, "1000", 4 [pid 20634] dup(4 [pid 20633] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20632] write(5, NULL, 176 [pid 20631] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20635] <... write resumed>) = 4 [pid 20634] <... dup resumed>) = 5 [pid 20633] <... futex resumed>) = 0 [pid 20632] <... write resumed>) = -1 EFAULT (Bad address) [pid 20631] <... futex resumed>) = 0 [pid 20636] set_robust_list(0x555556ba76e0, 24 [pid 20635] close(3 [pid 20634] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20633] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20632] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20631] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20636] <... set_robust_list resumed>) = 0 [pid 20635] <... close resumed>) = 0 [pid 20634] <... futex resumed>) = 0 [pid 20633] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20632] <... futex resumed>) = 0 [pid 20631] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20635] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20634] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20633] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20632] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20631] exit_group(0 [pid 20636] <... prctl resumed>) = 0 [pid 20635] <... futex resumed>) = 0 [pid 20634] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20633] <... futex resumed>) = 0 [pid 20632] <... futex resumed>) = ? [pid 20631] <... exit_group resumed>) = ? [pid 20636] setpgid(0, 0 [pid 20635] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20634] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20633] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20632] +++ exited with 0 +++ [pid 20631] +++ exited with 0 +++ [pid 20636] <... setpgid resumed>) = 0 [pid 20635] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20631, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20635] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20636] write(3, "1000", 4 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20636] <... write resumed>) = 4 [pid 3601] <... openat resumed>) = 3 [pid 20636] close(3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20636] <... close resumed>) = 0 [pid 20635] <... mprotect resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20636] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20635] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] close(3 [pid 20636] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20635] <... clone resumed>, parent_tid=[20637], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20637 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20636] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20635] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20636] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20635] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20638 [pid 20636] <... mprotect resumed>) = 0 [pid 20636] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20639], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20639 [pid 20636] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 20637 attached [pid 20636] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20637] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20637] mkdir("./file0", 0777 [pid 20635] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20637] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20637] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20637] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20634] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20638 attached ./strace-static-x86_64: Process 20639 attached [pid 20637] <... futex resumed>) = 1 [pid 20635] <... futex resumed>) = 0 [pid 20634] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20637] pipe2( [pid 20635] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20634] <... futex resumed>) = 1 [pid 20633] <... futex resumed>) = 0 [pid 20638] set_robust_list(0x555556ba76e0, 24 [pid 20639] set_robust_list(0x7f61a3ef39e0, 24 [pid 20637] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20635] <... futex resumed>) = 0 [pid 20634] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20633] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20639] <... set_robust_list resumed>) = 0 [pid 20638] <... set_robust_list resumed>) = 0 [pid 20637] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20635] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20634] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20633] <... futex resumed>) = 0 [pid 20637] <... futex resumed>) = 0 [pid 20635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20634] write(5, NULL, 176 [pid 20633] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20638] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20639] mkdir("./file0", 0777 [pid 20637] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20635] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20634] <... write resumed>) = -1 EFAULT (Bad address) [pid 20638] <... prctl resumed>) = 0 [pid 20637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20635] <... futex resumed>) = 0 [pid 20639] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20634] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20639] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20638] setpgid(0, 0 [pid 20637] dup(4 [pid 20635] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20634] <... futex resumed>) = 1 [pid 20633] <... futex resumed>) = 0 [pid 20639] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20638] <... setpgid resumed>) = 0 [pid 20637] <... dup resumed>) = 5 [pid 20634] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20633] exit_group(0 [pid 20639] <... futex resumed>) = 1 [pid 20638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20637] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20636] <... futex resumed>) = 0 [pid 20634] <... futex resumed>) = ? [pid 20633] <... exit_group resumed>) = ? [pid 20639] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20638] <... openat resumed>) = 3 [pid 20637] <... futex resumed>) = 1 [pid 20636] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20635] <... futex resumed>) = 0 [pid 20634] +++ exited with 0 +++ [pid 20633] +++ exited with 0 +++ [pid 20639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20638] write(3, "1000", 4 [pid 20637] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20636] <... futex resumed>) = 0 [pid 20635] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20633, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20639] pipe2( [pid 20638] <... write resumed>) = 4 [pid 20637] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20636] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20635] <... futex resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20639] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20638] close(3 [pid 20637] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20635] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... restart_syscall resumed>) = 0 [pid 20639] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20638] <... close resumed>) = 0 [pid 20639] <... futex resumed>) = 1 [pid 20638] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20639] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20638] <... futex resumed>) = 0 [pid 20638] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20638] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20638] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20640], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20640 [pid 20638] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20638] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20636] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20640 attached [pid 20636] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20640] set_robust_list(0x7f61a3ef39e0, 24 [pid 20639] <... futex resumed>) = 0 [pid 20636] <... futex resumed>) = 1 [pid 3606] <... openat resumed>) = 3 [pid 20640] <... set_robust_list resumed>) = 0 [pid 20639] dup(4 [pid 20636] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20640] mkdir("./file0", 0777 [pid 20639] <... dup resumed>) = 5 [pid 20637] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20640] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20639] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20637] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 20640] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20639] <... futex resumed>) = 1 [pid 20637] <... futex resumed>) = 1 [pid 20636] <... futex resumed>) = 0 [pid 20635] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20640] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20640] <... futex resumed>) = 1 [pid 20638] <... futex resumed>) = 0 [pid 20640] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20638] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20641 [pid 20640] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20638] <... futex resumed>) = 0 [pid 20640] pipe2( [pid 20638] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20640] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20640] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20638] <... futex resumed>) = 0 [pid 20640] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20638] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20640] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20638] <... futex resumed>) = 0 [pid 20640] dup(4 [pid 20638] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20640] <... dup resumed>) = 5 [pid 20640] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20638] <... futex resumed>) = 0 [pid 20640] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20638] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20640] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20638] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20641 attached [pid 20640] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20638] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20641] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20641] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20639] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20637] write(5, NULL, 176 [pid 20636] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20635] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20641] <... prctl resumed>) = 0 [pid 20639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20637] <... write resumed>) = -1 EFAULT (Bad address) [pid 20636] <... futex resumed>) = 0 [pid 20635] <... futex resumed>) = 0 [pid 20641] setpgid(0, 0 [pid 20640] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20639] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20637] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20636] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20635] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20641] <... setpgid resumed>) = 0 [pid 20640] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20637] <... futex resumed>) = 0 [pid 20635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20640] <... futex resumed>) = 1 [pid 20638] <... futex resumed>) = 0 [pid 20635] exit_group(0 [pid 20641] <... openat resumed>) = 3 [pid 20640] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20638] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20635] <... exit_group resumed>) = ? [pid 20641] write(3, "1000", 4 [pid 20640] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20638] <... futex resumed>) = 0 [pid 20641] <... write resumed>) = 4 [pid 20640] write(5, NULL, 176 [pid 20638] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20641] close(3 [pid 20640] <... write resumed>) = -1 EFAULT (Bad address) [pid 20637] +++ exited with 0 +++ [pid 20635] +++ exited with 0 +++ [pid 20641] <... close resumed>) = 0 [pid 20640] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20635, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20641] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20640] <... futex resumed>) = 1 [pid 20638] <... futex resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20641] <... futex resumed>) = 0 [pid 20640] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20638] exit_group(0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20641] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20640] <... futex resumed>) = ? [pid 20638] <... exit_group resumed>) = ? [pid 20641] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20640] +++ exited with 0 +++ [pid 20638] +++ exited with 0 +++ [pid 20641] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20638, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20641] <... mprotect resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20641] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3601] <... restart_syscall resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20641] <... clone resumed>, parent_tid=[20642], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20642 [pid 20639] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] close(3 [pid 20641] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20639] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20641] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... openat resumed>) = 3 [pid 20641] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20639] <... futex resumed>) = 1 [pid 20636] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20639] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20636] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20643 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20636] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20639] write(5, NULL, 176 [pid 20636] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... close resumed>) = 0 [pid 20639] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20639] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20636] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20644 ./strace-static-x86_64: Process 20642 attached [pid 20639] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20636] exit_group(0 [pid 20642] set_robust_list(0x7f61a3ef39e0, 24 [pid 20639] <... futex resumed>) = ? [pid 20636] <... exit_group resumed>) = ? [pid 20642] <... set_robust_list resumed>) = 0 [pid 20642] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 20644 attached [pid 20642] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20642] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20639] +++ exited with 0 +++ [pid 20636] +++ exited with 0 +++ [pid 20644] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20642] <... futex resumed>) = 1 [pid 20641] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20636, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20644] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20642] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20641] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20644] <... prctl resumed>) = 0 [pid 20642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20641] <... futex resumed>) = 0 [pid 20644] setpgid(0, 0 [pid 20642] pipe2( [pid 20641] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20644] <... setpgid resumed>) = 0 [pid 20642] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20642] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20644] <... openat resumed>) = 3 [pid 20642] <... futex resumed>) = 1 [pid 20641] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20644] write(3, "1000", 4 [pid 20642] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20641] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20644] <... write resumed>) = 4 [pid 20642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20641] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 ./strace-static-x86_64: Process 20643 attached [pid 20644] close(3 [pid 20642] dup(4 [pid 20641] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20644] <... close resumed>) = 0 [pid 20643] set_robust_list(0x555556ba76e0, 24 [pid 20642] <... dup resumed>) = 5 [pid 20644] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20642] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20645 [pid 20644] <... futex resumed>) = 0 [pid 20642] <... futex resumed>) = 1 [pid 20641] <... futex resumed>) = 0 [pid 20644] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20642] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20641] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20644] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20641] <... futex resumed>) = 0 [pid 20644] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20642] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20641] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20645 attached [pid 20644] <... mprotect resumed>) = 0 [pid 20643] <... set_robust_list resumed>) = 0 [pid 20645] set_robust_list(0x555556ba76e0, 24 [pid 20644] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20643] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20645] <... set_robust_list resumed>) = 0 [pid 20643] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 20646 attached [pid 20644] <... clone resumed>, parent_tid=[20646], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20646 [pid 20643] setpgid(0, 0 [pid 20642] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20646] set_robust_list(0x7f61a3ef39e0, 24 [pid 20644] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20643] <... setpgid resumed>) = 0 [pid 20642] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20645] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20646] <... set_robust_list resumed>) = 0 [pid 20644] <... futex resumed>) = 0 [pid 20643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20642] <... futex resumed>) = 1 [pid 20641] <... futex resumed>) = 0 [pid 20646] mkdir("./file0", 0777 [pid 20644] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20643] <... openat resumed>) = 3 [pid 20642] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20641] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20646] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20645] <... prctl resumed>) = 0 [pid 20643] write(3, "1000", 4 [pid 20642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20641] <... futex resumed>) = 0 [pid 20646] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20645] setpgid(0, 0 [pid 20643] <... write resumed>) = 4 [pid 20642] write(5, NULL, 176 [pid 20641] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20646] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20645] <... setpgid resumed>) = 0 [pid 20643] close(3 [pid 20642] <... write resumed>) = -1 EFAULT (Bad address) [pid 20646] <... futex resumed>) = 1 [pid 20644] <... futex resumed>) = 0 [pid 20643] <... close resumed>) = 0 [pid 20642] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20646] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20644] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20643] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20642] <... futex resumed>) = 1 [pid 20641] <... futex resumed>) = 0 [pid 20646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20645] <... openat resumed>) = 3 [pid 20644] <... futex resumed>) = 0 [pid 20643] <... futex resumed>) = 0 [pid 20642] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20641] exit_group(0 [pid 20646] pipe2( [pid 20645] write(3, "1000", 4 [pid 20644] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20643] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20642] <... futex resumed>) = ? [pid 20641] <... exit_group resumed>) = ? [pid 20646] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20645] <... write resumed>) = 4 [pid 20643] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20642] +++ exited with 0 +++ [pid 20641] +++ exited with 0 +++ [pid 20646] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20645] close(3 [pid 20643] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20646] <... futex resumed>) = 1 [pid 20645] <... close resumed>) = 0 [pid 20644] <... futex resumed>) = 0 [pid 20643] <... mprotect resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20641, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20646] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20645] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20644] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20643] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20645] <... futex resumed>) = 0 [pid 20644] <... futex resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20646] dup(4 [pid 20645] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20644] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20643] <... clone resumed>, parent_tid=[20647], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20647 [pid 20646] <... dup resumed>) = 5 [pid 20645] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20643] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20646] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20645] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20643] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20646] <... futex resumed>) = 1 [pid 20645] <... mprotect resumed>) = 0 [pid 20644] <... futex resumed>) = 0 [pid 20643] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... openat resumed>) = 3 [pid 20646] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20645] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20644] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20644] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20648 attached [pid 20646] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20645] <... clone resumed>, parent_tid=[20648], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20648 [pid 20644] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3./strace-static-x86_64: Process 20647 attached [pid 20648] set_robust_list(0x7f61a3ef39e0, 24 [pid 3606] <... close resumed>) = 0 [pid 20648] <... set_robust_list resumed>) = 0 [pid 20647] set_robust_list(0x7f61a3ef39e0, 24 [pid 20646] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20645] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20648] mkdir("./file0", 0777 [pid 20647] <... set_robust_list resumed>) = 0 [pid 20646] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20645] <... futex resumed>) = 0 [pid 20647] mkdir("./file0", 0777 [pid 20646] <... futex resumed>) = 1 [pid 20645] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20644] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20649 [pid 20648] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20647] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20646] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20644] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20647] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20644] <... futex resumed>) = 0 [pid 20647] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20646] write(5, NULL, 176 [pid 20644] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20648] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20647] <... futex resumed>) = 1 [pid 20646] <... write resumed>) = -1 EFAULT (Bad address) [pid 20643] <... futex resumed>) = 0 [pid 20648] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20647] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20646] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20643] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20648] <... futex resumed>) = 1 [pid 20647] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20646] <... futex resumed>) = 1 [pid 20645] <... futex resumed>) = 0 [pid 20644] <... futex resumed>) = 0 [pid 20643] <... futex resumed>) = 0 [pid 20648] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20647] pipe2( [pid 20646] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20645] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20644] exit_group(0 [pid 20643] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20647] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20646] <... futex resumed>) = ? [pid 20645] <... futex resumed>) = 0 [pid 20644] <... exit_group resumed>) = ? [pid 20648] pipe2( [pid 20647] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20646] +++ exited with 0 +++ [pid 20645] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20644] +++ exited with 0 +++ [pid 20647] <... futex resumed>) = 1 [pid 20643] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20644, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20647] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20643] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20647] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20643] <... futex resumed>) = 0 [pid 20647] dup(4 [pid 20643] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20647] <... dup resumed>) = 5 [pid 3601] <... openat resumed>) = 3 [pid 20647] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20648] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20647] <... futex resumed>) = 1 [pid 20643] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20648] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20647] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20643] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 20648] <... futex resumed>) = 1 [pid 20647] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20645] <... futex resumed>) = 0 [pid 20643] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 ./strace-static-x86_64: Process 20649 attached [pid 20648] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20647] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20645] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20643] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20650 attached [pid 20649] set_robust_list(0x555556ba76e0, 24 [pid 20648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20645] <... futex resumed>) = 0 [pid 20650] set_robust_list(0x555556ba76e0, 24 [pid 20649] <... set_robust_list resumed>) = 0 [pid 20648] dup(4 [pid 20645] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20650 [pid 20650] <... set_robust_list resumed>) = 0 [pid 20649] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20648] <... dup resumed>) = 5 [pid 20647] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20649] <... prctl resumed>) = 0 [pid 20648] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20647] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20649] setpgid(0, 0 [pid 20648] <... futex resumed>) = 1 [pid 20647] <... futex resumed>) = 1 [pid 20645] <... futex resumed>) = 0 [pid 20643] <... futex resumed>) = 0 [pid 20650] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20649] <... setpgid resumed>) = 0 [pid 20648] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20647] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20645] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20643] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20650] <... prctl resumed>) = 0 [pid 20649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20647] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20645] <... futex resumed>) = 0 [pid 20643] <... futex resumed>) = 0 [pid 20650] setpgid(0, 0) = 0 [pid 20649] <... openat resumed>) = 3 [pid 20648] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20647] write(5, NULL, 176 [pid 20645] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20643] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20649] write(3, "1000", 4 [pid 20647] <... write resumed>) = -1 EFAULT (Bad address) [pid 20647] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20649] <... write resumed>) = 4 [pid 20647] <... futex resumed>) = 1 [pid 20643] <... futex resumed>) = 0 [pid 20649] close(3 [pid 20647] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20643] exit_group(0 [pid 20647] <... futex resumed>) = ? [pid 20643] <... exit_group resumed>) = ? [pid 20649] <... close resumed>) = 0 [pid 20647] +++ exited with 0 +++ [pid 20643] +++ exited with 0 +++ [pid 20649] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20643, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20649] <... futex resumed>) = 0 [pid 20649] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20650] write(3, "1000", 4) = 4 [pid 20650] close(3) = 0 [pid 20650] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20650] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20650] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20650] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20651], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20651 [pid 20650] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20649] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 20651 attached [pid 20650] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20649] <... mprotect resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20651] set_robust_list(0x7f61a3ef39e0, 24 [pid 20649] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20651] <... set_robust_list resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20651] mkdir("./file0", 0777 [pid 20649] <... clone resumed>, parent_tid=[20652], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20652 [pid 3607] close(3./strace-static-x86_64: Process 20652 attached [pid 20651] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20649] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 20652] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20652] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20652] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20652] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20652] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20651] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20649] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20649] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20651] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20649] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20651] <... futex resumed>) = 1 [pid 20650] <... futex resumed>) = 0 [pid 20649] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20653 [pid 20652] <... futex resumed>) = 0 [pid 20651] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20650] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20649] <... futex resumed>) = 1 [pid 20652] pipe2( [pid 20650] <... futex resumed>) = 0 [pid 20649] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20652] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20650] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20652] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20651] pipe2( [pid 20652] <... futex resumed>) = 1 [pid 20651] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20649] <... futex resumed>) = 0 [pid 20652] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20649] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20651] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20648] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20653 attached [pid 20652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20651] <... futex resumed>) = 1 [pid 20650] <... futex resumed>) = 0 [pid 20649] <... futex resumed>) = 0 [pid 20648] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20653] set_robust_list(0x555556ba76e0, 24 [pid 20652] dup(4 [pid 20651] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20650] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20649] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20648] <... futex resumed>) = 1 [pid 20645] <... futex resumed>) = 0 [pid 20653] <... set_robust_list resumed>) = 0 [pid 20652] <... dup resumed>) = 5 [pid 20651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20650] <... futex resumed>) = 0 [pid 20648] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20645] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20652] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20651] dup(4 [pid 20650] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20645] <... futex resumed>) = 0 [pid 20653] <... prctl resumed>) = 0 [pid 20652] <... futex resumed>) = 1 [pid 20651] <... dup resumed>) = 5 [pid 20649] <... futex resumed>) = 0 [pid 20648] write(5, NULL, 176 [pid 20645] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20653] setpgid(0, 0 [pid 20652] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20651] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20649] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20648] <... write resumed>) = -1 EFAULT (Bad address) [pid 20653] <... setpgid resumed>) = 0 [pid 20652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20651] <... futex resumed>) = 1 [pid 20650] <... futex resumed>) = 0 [pid 20649] <... futex resumed>) = 0 [pid 20648] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20652] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20651] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20650] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20649] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20648] <... futex resumed>) = 1 [pid 20645] <... futex resumed>) = 0 [pid 20653] <... openat resumed>) = 3 [pid 20651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20650] <... futex resumed>) = 0 [pid 20648] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20645] exit_group(0 [pid 20653] write(3, "1000", 4 [pid 20651] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20648] <... futex resumed>) = ? [pid 20645] <... exit_group resumed>) = ? [pid 20653] <... write resumed>) = 4 [pid 20650] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20648] +++ exited with 0 +++ [pid 20645] +++ exited with 0 +++ [pid 20653] close(3) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20645, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20653] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20653] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20653] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20653] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20654], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20654 [pid 20653] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20653] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 20654 attached [pid 20654] set_robust_list(0x7f61a3ef39e0, 24 [pid 3604] <... openat resumed>) = 3 [pid 20654] <... set_robust_list resumed>) = 0 [pid 20654] mkdir("./file0", 0777 [pid 20652] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20652] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20652] <... futex resumed>) = 1 [pid 20649] <... futex resumed>) = 0 [pid 20652] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20649] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20654] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20654] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20651] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20649] <... futex resumed>) = 0 [pid 20652] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20651] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20649] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] close(3 [pid 20652] write(5, NULL, 176 [pid 20654] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20651] <... futex resumed>) = 1 [pid 20650] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20654] <... futex resumed>) = 1 [pid 20653] <... futex resumed>) = 0 [pid 20652] <... write resumed>) = -1 EFAULT (Bad address) [pid 20651] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20650] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20654] pipe2( [pid 20653] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20652] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20650] <... futex resumed>) = 0 [pid 20654] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20653] <... futex resumed>) = 0 [pid 20654] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20653] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20652] <... futex resumed>) = 1 [pid 20651] write(5, NULL, 176 [pid 20650] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20649] <... futex resumed>) = 0 [pid 20654] <... futex resumed>) = 0 [pid 20653] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20652] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20651] <... write resumed>) = -1 EFAULT (Bad address) [pid 20649] exit_group(0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20655 [pid 20654] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20653] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20651] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20649] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20655 attached [pid 20654] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20653] <... futex resumed>) = 0 [pid 20652] <... futex resumed>) = ? [pid 20651] <... futex resumed>) = 1 [pid 20650] <... futex resumed>) = 0 [pid 20655] set_robust_list(0x555556ba76e0, 24 [pid 20654] dup(4 [pid 20653] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20655] <... set_robust_list resumed>) = 0 [pid 20654] <... dup resumed>) = 5 [pid 20655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20654] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20652] +++ exited with 0 +++ [pid 20651] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20649] +++ exited with 0 +++ [pid 20655] <... prctl resumed>) = 0 [pid 20654] <... futex resumed>) = 1 [pid 20653] <... futex resumed>) = 0 [pid 20650] exit_group(0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20649, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20655] setpgid(0, 0 [pid 20654] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20653] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20651] <... futex resumed>) = ? [pid 20650] <... exit_group resumed>) = ? [pid 20655] <... setpgid resumed>) = 0 [pid 20654] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20653] <... futex resumed>) = 0 [pid 20651] +++ exited with 0 +++ [pid 20655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20654] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20653] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20655] <... openat resumed>) = 3 [pid 20650] +++ exited with 0 +++ [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20650, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... openat resumed>) = 3 [pid 3606] close(3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3606] <... close resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] close(3) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20656 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20657 ./strace-static-x86_64: Process 20656 attached [pid 20656] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20656] setpgid(0, 0) = 0 [pid 20656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20655] write(3, "1000", 4 [pid 20656] <... openat resumed>) = 3 [pid 20655] <... write resumed>) = 4 [pid 20656] write(3, "1000", 4 [pid 20655] close(3 [pid 20656] <... write resumed>) = 4 [pid 20655] <... close resumed>) = 0 [pid 20655] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20657 attached [pid 20656] close(3 [pid 20655] <... futex resumed>) = 0 [pid 20657] set_robust_list(0x555556ba76e0, 24 [pid 20656] <... close resumed>) = 0 [pid 20655] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20657] <... set_robust_list resumed>) = 0 [pid 20656] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20655] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20654] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20657] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20656] <... futex resumed>) = 0 [pid 20655] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20654] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20657] <... prctl resumed>) = 0 [pid 20656] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20655] <... mprotect resumed>) = 0 [pid 20654] <... futex resumed>) = 1 [pid 20653] <... futex resumed>) = 0 [pid 20656] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20656] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20656] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20658], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20658 [pid 20656] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20657] setpgid(0, 0 [pid 20656] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20655] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20654] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20653] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20658 attached [pid 20657] <... setpgid resumed>) = 0 [pid 20654] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20653] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20659 attached [pid 20658] set_robust_list(0x7f61a3ef39e0, 24 [pid 20657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20655] <... clone resumed>, parent_tid=[20659], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20659 [pid 20654] write(5, NULL, 176 [pid 20653] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20658] <... set_robust_list resumed>) = 0 [pid 20657] <... openat resumed>) = 3 [pid 20655] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20654] <... write resumed>) = -1 EFAULT (Bad address) [pid 20659] set_robust_list(0x7f61a3ef39e0, 24 [pid 20658] mkdir("./file0", 0777 [pid 20657] write(3, "1000", 4 [pid 20655] <... futex resumed>) = 0 [pid 20654] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20658] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20657] <... write resumed>) = 4 [pid 20655] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20654] <... futex resumed>) = 1 [pid 20653] <... futex resumed>) = 0 [pid 20658] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20657] close(3 [pid 20654] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20653] exit_group(0 [pid 20658] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20657] <... close resumed>) = 0 [pid 20654] <... futex resumed>) = ? [pid 20653] <... exit_group resumed>) = ? [pid 20659] <... set_robust_list resumed>) = 0 [pid 20658] <... futex resumed>) = 1 [pid 20657] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20656] <... futex resumed>) = 0 [pid 20654] +++ exited with 0 +++ [pid 20658] pipe2( [pid 20657] <... futex resumed>) = 0 [pid 20656] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20653] +++ exited with 0 +++ [pid 20659] mkdir("./file0", 0777 [pid 20658] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20657] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20656] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20653, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20659] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20658] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20657] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20656] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20659] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20658] <... futex resumed>) = 0 [pid 20657] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20656] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... restart_syscall resumed>) = 0 [pid 20659] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20658] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20657] <... mprotect resumed>) = 0 [pid 20656] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20659] <... futex resumed>) = 1 [pid 20658] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20657] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20656] <... futex resumed>) = 0 [pid 20655] <... futex resumed>) = 0 [pid 20659] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20658] dup(4 [pid 20656] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20655] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20659] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20658] <... dup resumed>) = 5 [pid 20657] <... clone resumed>, parent_tid=[20660], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20660 [pid 20655] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20659] pipe2( [pid 20658] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20657] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20655] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20659] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20658] <... futex resumed>) = 1 [pid 20657] <... futex resumed>) = 0 [pid 20656] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20659] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20658] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20657] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20656] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3./strace-static-x86_64: Process 20660 attached [pid 20659] <... futex resumed>) = 1 [pid 20658] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20656] <... futex resumed>) = 0 [pid 20655] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20660] set_robust_list(0x7f61a3ef39e0, 24 [pid 20659] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20658] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20656] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20655] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20660] <... set_robust_list resumed>) = 0 [pid 20659] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20655] <... futex resumed>) = 0 [pid 20660] mkdir("./file0", 0777 [pid 20659] dup(4 [pid 20655] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20660] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20659] <... dup resumed>) = 5 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20661 [pid 20660] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20659] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20660] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20659] <... futex resumed>) = 1 [pid 20655] <... futex resumed>) = 0 [pid 20660] <... futex resumed>) = 1 [pid 20659] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20655] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20660] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20659] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20655] <... futex resumed>) = 0 [pid 20659] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20655] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20657] <... futex resumed>) = 0 [pid 20657] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20660] <... futex resumed>) = 0 [pid 20657] <... futex resumed>) = 1 [pid 20660] pipe2( [pid 20657] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20660] <... pipe2 resumed>[3, 4], 0) = 0 ./strace-static-x86_64: Process 20661 attached [pid 20660] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20657] <... futex resumed>) = 0 [pid 20661] set_robust_list(0x555556ba76e0, 24 [pid 20660] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20658] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20657] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20661] <... set_robust_list resumed>) = 0 [pid 20660] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20658] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20657] <... futex resumed>) = 0 [pid 20661] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20660] dup(4 [pid 20658] <... futex resumed>) = 1 [pid 20657] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20656] <... futex resumed>) = 0 [pid 20661] <... prctl resumed>) = 0 [pid 20660] <... dup resumed>) = 5 [pid 20658] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20656] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20661] setpgid(0, 0 [pid 20660] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20658] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20656] <... futex resumed>) = 0 [pid 20661] <... setpgid resumed>) = 0 [pid 20660] <... futex resumed>) = 1 [pid 20658] write(5, NULL, 176 [pid 20657] <... futex resumed>) = 0 [pid 20656] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20660] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20658] <... write resumed>) = -1 EFAULT (Bad address) [pid 20657] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20661] <... openat resumed>) = 3 [pid 20660] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20658] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20657] <... futex resumed>) = 0 [pid 20661] write(3, "1000", 4 [pid 20660] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20658] <... futex resumed>) = 1 [pid 20657] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20656] <... futex resumed>) = 0 [pid 20661] <... write resumed>) = 4 [pid 20658] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20661] close(3) = 0 [pid 20656] exit_group(0 [pid 20661] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20658] <... futex resumed>) = ? [pid 20656] <... exit_group resumed>) = ? [pid 20661] <... futex resumed>) = 0 [pid 20658] +++ exited with 0 +++ [pid 20661] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20661] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20661] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20656] +++ exited with 0 +++ [pid 20661] <... clone resumed>, parent_tid=[20662], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20662 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20656, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20661] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20661] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20662 attached [pid 20662] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20662] mkdir("./file0", 0777 [pid 20659] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20662] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20662] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20662] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20659] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20659] <... futex resumed>) = 1 [pid 20655] <... futex resumed>) = 0 [pid 20661] <... futex resumed>) = 0 [pid 20661] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20659] write(5, NULL, 176 [pid 20655] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 20661] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20660] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20659] <... write resumed>) = -1 EFAULT (Bad address) [pid 20655] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20660] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20659] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20655] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20662] <... futex resumed>) = 1 [pid 20660] <... futex resumed>) = 1 [pid 20659] <... futex resumed>) = 0 [pid 20657] <... futex resumed>) = 0 [pid 20655] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20662] pipe2( [pid 20660] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20659] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20657] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20655] exit_group(0 [pid 3606] close(3 [pid 20660] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20659] <... futex resumed>) = ? [pid 20657] <... futex resumed>) = 0 [pid 20655] <... exit_group resumed>) = ? [pid 3606] <... close resumed>) = 0 [pid 20660] write(5, NULL, 176 [pid 20659] +++ exited with 0 +++ [pid 20657] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20655] +++ exited with 0 +++ [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20660] <... write resumed>) = -1 EFAULT (Bad address) [pid 20660] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20663 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20655, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20660] <... futex resumed>) = 1 [pid 20657] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20660] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20657] exit_group(0 [pid 3604] <... openat resumed>) = 3 [pid 20660] <... futex resumed>) = ? [pid 20657] <... exit_group resumed>) = ? [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20660] +++ exited with 0 +++ [pid 20657] +++ exited with 0 +++ [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20657, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 20663 attached [pid 20662] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20663] set_robust_list(0x555556ba76e0, 24 [pid 20662] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20663] <... set_robust_list resumed>) = 0 [pid 20662] <... futex resumed>) = 1 [pid 20661] <... futex resumed>) = 0 [pid 20663] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20662] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20661] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20664 [pid 20663] <... prctl resumed>) = 0 [pid 20662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20661] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20663] setpgid(0, 0 [pid 20662] dup(4 [pid 20661] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20663] <... setpgid resumed>) = 0 [pid 20662] <... dup resumed>) = 5 [pid 3601] close(3 [pid 20663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20662] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 ./strace-static-x86_64: Process 20664 attached [pid 20663] <... openat resumed>) = 3 [pid 20662] <... futex resumed>) = 1 [pid 20661] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20663] write(3, "1000", 4 [pid 20662] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20661] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20663] <... write resumed>) = 4 [pid 20662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20661] <... futex resumed>) = 0 [pid 20663] close(3 [pid 20662] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20661] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20665 attached [pid 20664] set_robust_list(0x555556ba76e0, 24 [pid 20663] <... close resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20665 [pid 20665] set_robust_list(0x555556ba76e0, 24 [pid 20664] <... set_robust_list resumed>) = 0 [pid 20663] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20665] <... set_robust_list resumed>) = 0 [pid 20664] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20665] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20664] <... prctl resumed>) = 0 [pid 20663] <... futex resumed>) = 0 [pid 20665] <... prctl resumed>) = 0 [pid 20664] setpgid(0, 0 [pid 20663] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20665] setpgid(0, 0 [pid 20664] <... setpgid resumed>) = 0 [pid 20665] <... setpgid resumed>) = 0 [pid 20664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20664] <... openat resumed>) = 3 [pid 20665] <... openat resumed>) = 3 [pid 20664] write(3, "1000", 4 [pid 20665] write(3, "1000", 4 [pid 20664] <... write resumed>) = 4 [pid 20665] <... write resumed>) = 4 [pid 20664] close(3 [pid 20665] close(3 [pid 20664] <... close resumed>) = 0 [pid 20665] <... close resumed>) = 0 [pid 20664] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20665] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20664] <... futex resumed>) = 0 [pid 20663] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20665] <... futex resumed>) = 0 [pid 20664] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20663] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20665] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20664] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20665] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20664] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20663] <... mprotect resumed>) = 0 [pid 20662] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20665] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20664] <... mprotect resumed>) = 0 [pid 20663] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20662] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20665] <... mprotect resumed>) = 0 [pid 20664] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20662] <... futex resumed>) = 1 [pid 20661] <... futex resumed>) = 0 [pid 20665] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20663] <... clone resumed>, parent_tid=[20666], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20666 [pid 20662] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20661] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20663] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20661] <... futex resumed>) = 0 [pid 20663] <... futex resumed>) = 0 [pid 20662] write(5, NULL, 176 [pid 20661] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20664] <... clone resumed>, parent_tid=[20667], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20667 [pid 20663] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20662] <... write resumed>) = -1 EFAULT (Bad address) [pid 20665] <... clone resumed>, parent_tid=[20668], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20668 [pid 20664] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20662] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20668 attached ./strace-static-x86_64: Process 20667 attached ./strace-static-x86_64: Process 20666 attached [pid 20665] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20664] <... futex resumed>) = 0 [pid 20662] <... futex resumed>) = 1 [pid 20661] <... futex resumed>) = 0 [pid 20665] <... futex resumed>) = 0 [pid 20664] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20662] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20661] exit_group(0 [pid 20665] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20662] <... futex resumed>) = ? [pid 20661] <... exit_group resumed>) = ? [pid 20668] set_robust_list(0x7f61a3ef39e0, 24 [pid 20667] set_robust_list(0x7f61a3ef39e0, 24 [pid 20666] set_robust_list(0x7f61a3ef39e0, 24 [pid 20662] +++ exited with 0 +++ [pid 20661] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20661, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20667] <... set_robust_list resumed>) = 0 [pid 20666] <... set_robust_list resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20667] mkdir("./file0", 0777 [pid 3607] <... openat resumed>) = 3 [pid 20667] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20666] mkdir("./file0", 0777 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20667] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20666] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 20668] <... set_robust_list resumed>) = 0 [pid 20667] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20666] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3607] <... close resumed>) = 0 [pid 20668] mkdir("./file0", 0777 [pid 20667] <... futex resumed>) = 1 [pid 20666] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20664] <... futex resumed>) = 0 [pid 20668] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20667] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20666] <... futex resumed>) = 1 [pid 20664] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20663] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20668] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20666] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20664] <... futex resumed>) = 0 [pid 20663] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20668] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20667] pipe2( [pid 20666] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20664] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20663] <... futex resumed>) = 0 [pid 20668] <... futex resumed>) = 1 [pid 20667] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20666] pipe2( [pid 20665] <... futex resumed>) = 0 [pid 20663] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20669 [pid 20668] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20667] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20666] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20665] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20668] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20667] <... futex resumed>) = 1 [pid 20666] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20665] <... futex resumed>) = 0 [pid 20664] <... futex resumed>) = 0 [pid 20668] pipe2( [pid 20667] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20666] <... futex resumed>) = 0 [pid 20665] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20664] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 20669 attached [pid 20668] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20666] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20664] <... futex resumed>) = 0 [pid 20663] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20669] set_robust_list(0x555556ba76e0, 24 [pid 20668] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20667] dup(4 [pid 20666] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20664] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20663] <... futex resumed>) = 0 [pid 20669] <... set_robust_list resumed>) = 0 [pid 20668] <... futex resumed>) = 1 [pid 20667] <... dup resumed>) = 5 [pid 20666] dup(4 [pid 20665] <... futex resumed>) = 0 [pid 20663] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20668] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20667] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20666] <... dup resumed>) = 5 [pid 20665] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20669] <... prctl resumed>) = 0 [pid 20668] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20667] <... futex resumed>) = 1 [pid 20666] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20665] <... futex resumed>) = 0 [pid 20664] <... futex resumed>) = 0 [pid 20669] setpgid(0, 0 [pid 20668] dup(4 [pid 20667] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20666] <... futex resumed>) = 1 [pid 20665] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20664] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20663] <... futex resumed>) = 0 [pid 20669] <... setpgid resumed>) = 0 [pid 20668] <... dup resumed>) = 5 [pid 20667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20666] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20664] <... futex resumed>) = 0 [pid 20663] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20668] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20667] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20666] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20664] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20663] <... futex resumed>) = 0 [pid 20669] <... openat resumed>) = 3 [pid 20668] <... futex resumed>) = 1 [pid 20666] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20665] <... futex resumed>) = 0 [pid 20663] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20669] write(3, "1000", 4 [pid 20668] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20665] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20669] <... write resumed>) = 4 [pid 20669] close(3) = 0 [pid 20668] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20665] <... futex resumed>) = 0 [pid 20669] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20668] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20665] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20669] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20669] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20670], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20670 [pid 20669] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20670 attached ) = 0 [pid 20667] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20670] set_robust_list(0x7f61a3ef39e0, 24 [pid 20669] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20668] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20667] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20670] <... set_robust_list resumed>) = 0 [pid 20667] <... futex resumed>) = 1 [pid 20664] <... futex resumed>) = 0 [pid 20670] mkdir("./file0", 0777 [pid 20668] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20667] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20666] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20664] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20670] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20668] <... futex resumed>) = 1 [pid 20667] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20666] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20665] <... futex resumed>) = 0 [pid 20664] <... futex resumed>) = 0 [pid 20670] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20668] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20667] write(5, NULL, 176 [pid 20666] <... futex resumed>) = 1 [pid 20665] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20664] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20663] <... futex resumed>) = 0 [pid 20670] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20668] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20667] <... write resumed>) = -1 EFAULT (Bad address) [pid 20666] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20665] <... futex resumed>) = 0 [pid 20663] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20670] <... futex resumed>) = 1 [pid 20669] <... futex resumed>) = 0 [pid 20668] write(5, NULL, 176 [pid 20667] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20666] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20665] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20663] <... futex resumed>) = 0 [pid 20670] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20669] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20668] <... write resumed>) = -1 EFAULT (Bad address) [pid 20667] <... futex resumed>) = 1 [pid 20666] write(5, NULL, 176 [pid 20664] <... futex resumed>) = 0 [pid 20663] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20670] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20669] <... futex resumed>) = 0 [pid 20668] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20667] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20666] <... write resumed>) = -1 EFAULT (Bad address) [pid 20664] exit_group(0 [pid 20670] pipe2( [pid 20669] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20668] <... futex resumed>) = 1 [pid 20667] <... futex resumed>) = ? [pid 20666] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20665] <... futex resumed>) = 0 [pid 20664] <... exit_group resumed>) = ? [pid 20670] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20668] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20667] +++ exited with 0 +++ [pid 20666] <... futex resumed>) = 1 [pid 20665] exit_group(0 [pid 20664] +++ exited with 0 +++ [pid 20663] <... futex resumed>) = 0 [pid 20670] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20668] <... futex resumed>) = ? [pid 20666] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20665] <... exit_group resumed>) = ? [pid 20663] exit_group(0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20664, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20670] <... futex resumed>) = 1 [pid 20669] <... futex resumed>) = 0 [pid 20668] +++ exited with 0 +++ [pid 20666] <... futex resumed>) = ? [pid 20663] <... exit_group resumed>) = ? [pid 20670] dup(4 [pid 20669] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20666] +++ exited with 0 +++ [pid 20665] +++ exited with 0 +++ [pid 20670] <... dup resumed>) = 5 [pid 20670] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20665, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20670] <... futex resumed>) = 0 [pid 20663] +++ exited with 0 +++ [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20670] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20669] <... futex resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20669] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20663, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20669] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20669] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20670] <... futex resumed>) = 0 [pid 20669] <... futex resumed>) = 1 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... openat resumed>) = 3 [pid 3601] <... openat resumed>) = 3 [pid 20670] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20669] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3606] close(3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20670] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20670] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 3604] close(3 [pid 3601] close(3 [pid 20670] <... futex resumed>) = 1 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... close resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20670] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20671 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20672 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20673 ./strace-static-x86_64: Process 20672 attached [pid 20672] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20672] setpgid(0, 0) = 0 [pid 20669] <... futex resumed>) = 0 [pid 20669] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20673 attached [pid 20670] <... futex resumed>) = 0 [pid 20669] <... futex resumed>) = 1 [pid 20670] write(5, NULL, 176 [pid 20669] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20673] set_robust_list(0x555556ba76e0, 24 [pid 20670] <... write resumed>) = -1 EFAULT (Bad address) [pid 20670] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20669] <... futex resumed>) = 0 [pid 20670] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20673] <... set_robust_list resumed>) = 0 [pid 20669] exit_group(0 [pid 20670] <... futex resumed>) = ? [pid 20669] <... exit_group resumed>) = ? [pid 20672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20670] +++ exited with 0 +++ [pid 20669] +++ exited with 0 +++ [pid 20672] <... openat resumed>) = 3 [pid 20672] write(3, "1000", 4) = 4 [pid 20672] close(3) = 0 [pid 20672] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20672] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20672] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20669, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20672] <... mprotect resumed>) = 0 [pid 20672] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20672] <... clone resumed>, parent_tid=[20674], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20674 [pid 3607] <... openat resumed>) = 3 [pid 20672] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20673] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20672] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20671 attached [pid 20673] <... prctl resumed>) = 0 [pid 20672] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] close(3 [pid 20673] setpgid(0, 0 [pid 3607] <... close resumed>) = 0 [pid 20673] <... setpgid resumed>) = 0 [pid 20671] set_robust_list(0x555556ba76e0, 24 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20674 attached [pid 20674] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20671] <... set_robust_list resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20675 [pid 20673] <... openat resumed>) = 3 [pid 20671] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20673] write(3, "1000", 4 [pid 20671] <... prctl resumed>) = 0 [pid 20674] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20673] <... write resumed>) = 4 [pid 20671] setpgid(0, 0 [pid 20674] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20673] close(3 [pid 20671] <... setpgid resumed>) = 0 [pid 20674] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20673] <... close resumed>) = 0 [pid 20672] <... futex resumed>) = 0 [pid 20671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 20675 attached [pid 20674] pipe2( [pid 20673] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20672] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20675] set_robust_list(0x555556ba76e0, 24 [pid 20674] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20672] <... futex resumed>) = 0 [pid 20673] <... futex resumed>) = 0 [pid 20675] <... set_robust_list resumed>) = 0 [pid 20674] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20673] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20672] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20671] <... openat resumed>) = 3 [pid 20675] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20674] <... futex resumed>) = 0 [pid 20673] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20672] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20671] write(3, "1000", 4 [pid 20675] <... prctl resumed>) = 0 [pid 20674] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20673] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20672] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20671] <... write resumed>) = 4 [pid 20675] setpgid(0, 0 [pid 20674] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20673] <... mprotect resumed>) = 0 [pid 20672] <... futex resumed>) = 0 [pid 20671] close(3 [pid 20675] <... setpgid resumed>) = 0 [pid 20674] dup(4 [pid 20673] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20672] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20671] <... close resumed>) = 0 [pid 20675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20674] <... dup resumed>) = 5 [pid 20671] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20675] <... openat resumed>) = 3 [pid 20674] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20673] <... clone resumed>, parent_tid=[20676], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20676 [pid 20671] <... futex resumed>) = 0 [pid 20675] write(3, "1000", 4 [pid 20674] <... futex resumed>) = 1 [pid 20673] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20672] <... futex resumed>) = 0 [pid 20671] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20675] <... write resumed>) = 4 [pid 20674] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20673] <... futex resumed>) = 0 [pid 20672] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20671] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20675] close(3 [pid 20674] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20673] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20672] <... futex resumed>) = 0 [pid 20671] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 20676 attached [pid 20675] <... close resumed>) = 0 [pid 20674] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20672] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20676] set_robust_list(0x7f61a3ef39e0, 24 [pid 20675] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20671] <... mprotect resumed>) = 0 [pid 20676] <... set_robust_list resumed>) = 0 [pid 20675] <... futex resumed>) = 0 [pid 20671] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20676] mkdir("./file0", 0777 [pid 20675] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20676] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20675] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20671] <... clone resumed>, parent_tid=[20677], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20677 [pid 20676] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20675] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20671] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20676] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20675] <... mprotect resumed>) = 0 [pid 20671] <... futex resumed>) = 0 [pid 20676] <... futex resumed>) = 1 [pid 20675] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20673] <... futex resumed>) = 0 [pid 20671] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20677 attached [pid 20676] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20673] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20678 attached [pid 20677] set_robust_list(0x7f61a3ef39e0, 24 [pid 20676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20675] <... clone resumed>, parent_tid=[20678], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20678 [pid 20673] <... futex resumed>) = 0 [pid 20674] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20678] set_robust_list(0x7f61a3ef39e0, 24 [pid 20677] <... set_robust_list resumed>) = 0 [pid 20676] pipe2( [pid 20675] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20674] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20673] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20678] <... set_robust_list resumed>) = 0 [pid 20677] mkdir("./file0", 0777 [pid 20676] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20675] <... futex resumed>) = 0 [pid 20674] <... futex resumed>) = 1 [pid 20672] <... futex resumed>) = 0 [pid 20677] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20678] mkdir("./file0", 0777 [pid 20676] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20675] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20674] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20672] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20678] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20677] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20676] <... futex resumed>) = 1 [pid 20674] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20673] <... futex resumed>) = 0 [pid 20672] <... futex resumed>) = 0 [pid 20678] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20677] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20676] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20674] write(5, NULL, 176 [pid 20673] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20672] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20678] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20677] <... futex resumed>) = 1 [pid 20676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20674] <... write resumed>) = -1 EFAULT (Bad address) [pid 20673] <... futex resumed>) = 0 [pid 20671] <... futex resumed>) = 0 [pid 20678] <... futex resumed>) = 1 [pid 20677] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20676] dup(4 [pid 20675] <... futex resumed>) = 0 [pid 20674] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20673] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20671] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20678] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20677] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20676] <... dup resumed>) = 5 [pid 20675] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20674] <... futex resumed>) = 1 [pid 20672] <... futex resumed>) = 0 [pid 20671] <... futex resumed>) = 0 [pid 20678] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20677] pipe2( [pid 20676] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20675] <... futex resumed>) = 0 [pid 20674] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20672] exit_group(0 [pid 20671] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20678] pipe2( [pid 20677] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20676] <... futex resumed>) = 1 [pid 20675] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20674] <... futex resumed>) = ? [pid 20673] <... futex resumed>) = 0 [pid 20672] <... exit_group resumed>) = ? [pid 20678] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20677] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20676] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20674] +++ exited with 0 +++ [pid 20673] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20678] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20673] <... futex resumed>) = 0 [pid 20678] <... futex resumed>) = 1 [pid 20673] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20678] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20672] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20672, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20677] <... futex resumed>) = 1 [pid 20676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20675] <... futex resumed>) = 0 [pid 20671] <... futex resumed>) = 0 [pid 20677] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20676] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20675] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20671] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20678] <... futex resumed>) = 0 [pid 20677] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20675] <... futex resumed>) = 1 [pid 20671] <... futex resumed>) = 0 [pid 20678] dup(4 [pid 20677] dup(4 [pid 20671] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20675] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20678] <... dup resumed>) = 5 [pid 20678] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20678] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20677] <... dup resumed>) = 5 [pid 20675] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20677] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20675] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20678] <... futex resumed>) = 0 [pid 20677] <... futex resumed>) = 1 [pid 20675] <... futex resumed>) = 1 [pid 20671] <... futex resumed>) = 0 [pid 20678] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20677] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20675] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20671] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20671] <... futex resumed>) = 0 [pid 20671] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20678] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20676] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20676] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20676] <... futex resumed>) = 1 [pid 3604] <... close resumed>) = 0 [pid 20676] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20673] <... futex resumed>) = 0 [pid 20678] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20673] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20679 ./strace-static-x86_64: Process 20679 attached [pid 20678] <... futex resumed>) = 1 [pid 20676] <... futex resumed>) = 0 [pid 20675] <... futex resumed>) = 0 [pid 20673] <... futex resumed>) = 1 [pid 20679] set_robust_list(0x555556ba76e0, 24 [pid 20678] write(5, NULL, 176 [pid 20677] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20676] write(5, NULL, 176 [pid 20675] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20673] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20679] <... set_robust_list resumed>) = 0 [pid 20678] <... write resumed>) = -1 EFAULT (Bad address) [pid 20677] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20676] <... write resumed>) = -1 EFAULT (Bad address) [pid 20675] <... futex resumed>) = 0 [pid 20679] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20678] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20677] <... futex resumed>) = 1 [pid 20676] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20675] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20671] <... futex resumed>) = 0 [pid 20679] <... prctl resumed>) = 0 [pid 20678] <... futex resumed>) = 0 [pid 20677] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20676] <... futex resumed>) = 1 [pid 20675] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20673] <... futex resumed>) = 0 [pid 20671] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20679] setpgid(0, 0 [pid 20678] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20677] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20676] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20675] exit_group(0 [pid 20673] exit_group(0 [pid 20671] <... futex resumed>) = 0 [pid 20679] <... setpgid resumed>) = 0 [pid 20678] <... futex resumed>) = ? [pid 20677] write(5, NULL, 176 [pid 20676] <... futex resumed>) = ? [pid 20675] <... exit_group resumed>) = ? [pid 20673] <... exit_group resumed>) = ? [pid 20671] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20678] +++ exited with 0 +++ [pid 20677] <... write resumed>) = -1 EFAULT (Bad address) [pid 20676] +++ exited with 0 +++ [pid 20679] <... openat resumed>) = 3 [pid 20677] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20675] +++ exited with 0 +++ [pid 20679] write(3, "1000", 4 [pid 20677] <... futex resumed>) = 1 [pid 20673] +++ exited with 0 +++ [pid 20671] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20675, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20679] <... write resumed>) = 4 [pid 20677] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20671] exit_group(0 [pid 20679] close(3 [pid 20671] <... exit_group resumed>) = ? [pid 20677] <... futex resumed>) = ? [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20673, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20679] <... close resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 20677] +++ exited with 0 +++ [pid 20671] +++ exited with 0 +++ [pid 20679] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] close(3 [pid 20679] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20671, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3601] <... close resumed>) = 0 [pid 20679] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20679] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 20680 attached [pid 20679] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] close(3 [pid 20680] set_robust_list(0x555556ba76e0, 24 [pid 20679] <... mprotect resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20680 [pid 20680] <... set_robust_list resumed>) = 0 [pid 20680] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20680] <... prctl resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20680] setpgid(0, 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20680] <... setpgid resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3606] close(3 [pid 20680] <... openat resumed>) = 3 [pid 3606] <... close resumed>) = 0 [pid 20680] write(3, "1000", 4 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20680] <... write resumed>) = 4 [pid 20680] close(3 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20681 [pid 20680] <... close resumed>) = 0 [pid 20680] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20680] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20680] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20680] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20682], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20682 [pid 20680] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20681 attached ) = 0 [pid 20679] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20680] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20679] <... clone resumed>, parent_tid=[20683], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20683 ./strace-static-x86_64: Process 20684 attached [pid 20679] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20684 [pid 20681] set_robust_list(0x555556ba76e0, 24 [pid 20679] <... futex resumed>) = 0 [pid 20681] <... set_robust_list resumed>) = 0 [pid 20679] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20684] set_robust_list(0x555556ba76e0, 24) = 0 ./strace-static-x86_64: Process 20682 attached [pid 20684] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20681] setpgid(0, 0 [pid 20684] <... prctl resumed>) = 0 [pid 20682] set_robust_list(0x7f61a3ef39e0, 24 [pid 20681] <... setpgid resumed>) = 0 [pid 20684] setpgid(0, 0 [pid 20682] <... set_robust_list resumed>) = 0 [pid 20681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20684] <... setpgid resumed>) = 0 [pid 20682] mkdir("./file0", 0777 [pid 20681] <... openat resumed>) = 3 [pid 20684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20682] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20681] write(3, "1000", 4 [pid 20684] <... openat resumed>) = 3 [pid 20682] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20681] <... write resumed>) = 4 [pid 20684] write(3, "1000", 4 [pid 20682] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20681] close(3 [pid 20684] <... write resumed>) = 4 [pid 20682] <... futex resumed>) = 1 [pid 20681] <... close resumed>) = 0 [pid 20680] <... futex resumed>) = 0 [pid 20684] close(3 [pid 20682] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20681] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20680] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20683 attached [pid 20684] <... close resumed>) = 0 [pid 20682] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20681] <... futex resumed>) = 0 [pid 20680] <... futex resumed>) = 0 [pid 20684] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20682] pipe2( [pid 20681] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20680] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20684] <... futex resumed>) = 0 [pid 20683] set_robust_list(0x7f61a3ef39e0, 24 [pid 20682] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20681] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20684] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20682] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20681] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20684] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20683] <... set_robust_list resumed>) = 0 [pid 20682] <... futex resumed>) = 1 [pid 20681] <... mprotect resumed>) = 0 [pid 20680] <... futex resumed>) = 0 [pid 20684] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20682] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20681] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20680] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20683] mkdir("./file0", 0777./strace-static-x86_64: Process 20685 attached [pid 20684] <... mprotect resumed>) = 0 [pid 20683] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20682] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20680] <... futex resumed>) = 0 [pid 20683] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20681] <... clone resumed>, parent_tid=[20685], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20685 [pid 20685] set_robust_list(0x7f61a3ef39e0, 24 [pid 20683] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20681] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20685] <... set_robust_list resumed>) = 0 [pid 20683] <... futex resumed>) = 1 [pid 20681] <... futex resumed>) = 0 [pid 20679] <... futex resumed>) = 0 [pid 20685] mkdir("./file0", 0777 [pid 20683] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20681] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20679] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20685] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20684] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20683] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20682] dup(4 [pid 20680] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20679] <... futex resumed>) = 0 [pid 20685] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20683] pipe2( [pid 20682] <... dup resumed>) = 5 [pid 20679] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20685] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20684] <... clone resumed>, parent_tid=[20686], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20686 [pid 20683] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20682] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20686 attached [pid 20685] <... futex resumed>) = 1 [pid 20684] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20683] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20682] <... futex resumed>) = 1 [pid 20681] <... futex resumed>) = 0 [pid 20680] <... futex resumed>) = 0 [pid 20685] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20684] <... futex resumed>) = 0 [pid 20683] <... futex resumed>) = 1 [pid 20682] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20686] set_robust_list(0x7f61a3ef39e0, 24 [pid 20681] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20680] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20679] <... futex resumed>) = 0 [pid 20685] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20684] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20683] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20682] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20681] <... futex resumed>) = 0 [pid 20680] <... futex resumed>) = 0 [pid 20679] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20686] <... set_robust_list resumed>) = 0 [pid 20685] pipe2( [pid 20683] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20682] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20681] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20680] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20679] <... futex resumed>) = 0 [pid 20686] mkdir("./file0", 0777 [pid 20685] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20683] dup(4 [pid 20679] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20686] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20685] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20683] <... dup resumed>) = 5 [pid 20686] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20685] <... futex resumed>) = 1 [pid 20683] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20681] <... futex resumed>) = 0 [pid 20686] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20685] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20683] <... futex resumed>) = 1 [pid 20681] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20679] <... futex resumed>) = 0 [pid 20686] <... futex resumed>) = 1 [pid 20685] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20684] <... futex resumed>) = 0 [pid 20683] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20681] <... futex resumed>) = 0 [pid 20679] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20686] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20685] dup(4 [pid 20684] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20683] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20681] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20679] <... futex resumed>) = 0 [pid 20686] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20685] <... dup resumed>) = 5 [pid 20683] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20679] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20686] pipe2( [pid 20685] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20684] <... futex resumed>) = 0 [pid 20686] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20685] <... futex resumed>) = 1 [pid 20684] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20682] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20681] <... futex resumed>) = 0 [pid 20682] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20680] <... futex resumed>) = 0 [pid 20682] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20680] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20682] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20680] <... futex resumed>) = 0 [pid 20682] write(5, NULL, 176 [pid 20680] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20682] <... write resumed>) = -1 EFAULT (Bad address) [pid 20682] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20680] <... futex resumed>) = 0 [pid 20682] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20680] exit_group(0 [pid 20682] <... futex resumed>) = ? [pid 20680] <... exit_group resumed>) = ? [pid 20686] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20685] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20683] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20682] +++ exited with 0 +++ [pid 20681] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20686] <... futex resumed>) = 1 [pid 20685] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20684] <... futex resumed>) = 0 [pid 20683] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20681] <... futex resumed>) = 0 [pid 20680] +++ exited with 0 +++ [pid 20686] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20685] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20684] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20683] <... futex resumed>) = 1 [pid 20681] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20679] <... futex resumed>) = 0 [pid 20686] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20684] <... futex resumed>) = 0 [pid 20683] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20679] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20686] dup(4 [pid 20684] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20680, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20686] <... dup resumed>) = 5 [pid 20683] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20679] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20686] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20683] write(5, NULL, 176 [pid 20679] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 20686] <... futex resumed>) = 1 [pid 20685] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20684] <... futex resumed>) = 0 [pid 20683] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20686] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20685] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20684] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20683] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20686] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20685] <... futex resumed>) = 1 [pid 20684] <... futex resumed>) = 0 [pid 20683] <... futex resumed>) = 1 [pid 20681] <... futex resumed>) = 0 [pid 20679] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20686] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20685] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20684] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20683] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20681] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20679] exit_group(0 [pid 3601] <... close resumed>) = 0 [pid 20685] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20683] <... futex resumed>) = ? [pid 20681] <... futex resumed>) = 0 [pid 20679] <... exit_group resumed>) = ? [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20681] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20683] +++ exited with 0 +++ [pid 20679] +++ exited with 0 +++ [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20687 [pid 20685] write(5, NULL, 176 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20679, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20685] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20685] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20685] <... futex resumed>) = 1 [pid 20681] <... futex resumed>) = 0 [pid 20686] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20685] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20681] exit_group(0 [pid 20686] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20685] <... futex resumed>) = ? [pid 20681] <... exit_group resumed>) = ? [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20684] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20687 attached [pid 20686] <... futex resumed>) = 1 [pid 20685] +++ exited with 0 +++ [pid 20684] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20681] +++ exited with 0 +++ [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20687] set_robust_list(0x555556ba76e0, 24 [pid 20686] write(5, NULL, 176 [pid 20684] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20681, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20686] <... write resumed>) = -1 EFAULT (Bad address) [pid 20684] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] close(3 [pid 20687] <... set_robust_list resumed>) = 0 [pid 20686] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 20687] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20686] <... futex resumed>) = 1 [pid 20684] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20687] <... prctl resumed>) = 0 [pid 20686] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20684] exit_group(0 [pid 20686] <... futex resumed>) = ? [pid 20684] <... exit_group resumed>) = ? [pid 20687] setpgid(0, 0 [pid 20686] +++ exited with 0 +++ ./strace-static-x86_64: Process 20688 attached [pid 20687] <... setpgid resumed>) = 0 [pid 20684] +++ exited with 0 +++ [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20688 [pid 20688] set_robust_list(0x555556ba76e0, 24 [pid 20687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20684, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20688] <... set_robust_list resumed>) = 0 [pid 20688] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20687] <... openat resumed>) = 3 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20687] write(3, "1000", 4 [pid 3606] <... openat resumed>) = 3 [pid 20687] <... write resumed>) = 4 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20688] <... prctl resumed>) = 0 [pid 20687] close(3 [pid 20688] setpgid(0, 0 [pid 20687] <... close resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20688] <... setpgid resumed>) = 0 [pid 20687] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 20688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20687] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20687] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] <... close resumed>) = 0 [pid 20687] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20687] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20689 [pid 20687] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20690], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20690 [pid 20687] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20687] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20690 attached ./strace-static-x86_64: Process 20689 attached [pid 20688] <... openat resumed>) = 3 [pid 3607] <... openat resumed>) = 3 [pid 20690] set_robust_list(0x7f61a3ef39e0, 24 [pid 20689] set_robust_list(0x555556ba76e0, 24 [pid 20688] write(3, "1000", 4 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20690] <... set_robust_list resumed>) = 0 [pid 20689] <... set_robust_list resumed>) = 0 [pid 20688] <... write resumed>) = 4 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20690] mkdir("./file0", 0777 [pid 20689] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20688] close(3 [pid 3607] close(3 [pid 20690] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20689] <... prctl resumed>) = 0 [pid 20688] <... close resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20690] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20689] setpgid(0, 0 [pid 20688] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20690] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20689] <... setpgid resumed>) = 0 [pid 20688] <... futex resumed>) = 0 [pid 20690] <... futex resumed>) = 1 [pid 20689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20688] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20687] <... futex resumed>) = 0 [pid 20690] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20689] <... openat resumed>) = 3 [pid 20688] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20687] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20691 [pid 20690] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20689] write(3, "1000", 4 [pid 20688] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20687] <... futex resumed>) = 0 [pid 20690] pipe2( [pid 20689] <... write resumed>) = 4 [pid 20688] <... mprotect resumed>) = 0 [pid 20687] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20691 attached [pid 20690] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20689] close(3 [pid 20688] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20691] set_robust_list(0x555556ba76e0, 24 [pid 20690] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20689] <... close resumed>) = 0 [pid 20691] <... set_robust_list resumed>) = 0 [pid 20690] <... futex resumed>) = 1 [pid 20689] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20688] <... clone resumed>, parent_tid=[20692], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20692 [pid 20687] <... futex resumed>) = 0 [pid 20691] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20690] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20689] <... futex resumed>) = 0 [pid 20688] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20687] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20691] <... prctl resumed>) = 0 [pid 20690] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20689] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20688] <... futex resumed>) = 0 [pid 20687] <... futex resumed>) = 0 [pid 20691] setpgid(0, 0 [pid 20690] dup(4 [pid 20689] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20688] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20687] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20691] <... setpgid resumed>) = 0 [pid 20690] <... dup resumed>) = 5 [pid 20689] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20690] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20689] <... mprotect resumed>) = 0 [pid 20691] <... openat resumed>) = 3 [pid 20690] <... futex resumed>) = 1 [pid 20689] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20687] <... futex resumed>) = 0 [pid 20691] write(3, "1000", 4 [pid 20690] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20687] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20691] <... write resumed>) = 4 [pid 20690] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20689] <... clone resumed>, parent_tid=[20693], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20693 [pid 20687] <... futex resumed>) = 0 [pid 20691] close(3 [pid 20690] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20689] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20691] <... close resumed>) = 0 [pid 20689] <... futex resumed>) = 0 [pid 20687] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20691] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20689] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20691] <... futex resumed>) = 0 [pid 20691] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20691] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20691] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20694], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20694 [pid 20691] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20691] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20690] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20690] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20687] <... futex resumed>) = 0 [pid 20690] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20687] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20690] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20687] <... futex resumed>) = 0 [pid 20690] write(5, NULL, 176 [pid 20687] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20692 attached [pid 20690] <... write resumed>) = -1 EFAULT (Bad address) [pid 20690] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20692] set_robust_list(0x7f61a3ef39e0, 24 [pid 20690] <... futex resumed>) = 1 [pid 20687] <... futex resumed>) = 0 [pid 20692] <... set_robust_list resumed>) = 0 [pid 20690] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20687] exit_group(0./strace-static-x86_64: Process 20694 attached [pid 20690] <... futex resumed>) = ? [pid 20687] <... exit_group resumed>) = ? [pid 20694] set_robust_list(0x7f61a3ef39e0, 24 [pid 20692] mkdir("./file0", 0777 [pid 20690] +++ exited with 0 +++ [pid 20694] <... set_robust_list resumed>) = 0 [pid 20694] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20694] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20687] +++ exited with 0 +++ [pid 20692] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20692] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20687, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20694] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20692] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20694] <... futex resumed>) = 1 [pid 20691] <... futex resumed>) = 0 [pid 20694] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20692] <... futex resumed>) = 1 [pid 20691] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20688] <... futex resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20694] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20691] <... futex resumed>) = 0 [pid 20688] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20692] pipe2( [pid 20694] pipe2( [pid 20691] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20688] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20693 attached [pid 20694] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20692] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20688] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20694] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20693] set_robust_list(0x7f61a3ef39e0, 24 [pid 20692] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20688] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20694] <... futex resumed>) = 1 [pid 20691] <... futex resumed>) = 0 [pid 20688] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20694] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20691] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20688] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20694] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20693] <... set_robust_list resumed>) = 0 [pid 20692] <... futex resumed>) = 0 [pid 20691] <... futex resumed>) = 0 [pid 20688] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20694] dup(4 [pid 20693] mkdir("./file0", 0777 [pid 20692] dup(4 [pid 20691] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20694] <... dup resumed>) = 5 [pid 20693] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20692] <... dup resumed>) = 5 [pid 3601] close(3 [pid 20694] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20693] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20692] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20694] <... futex resumed>) = 1 [pid 20693] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20692] <... futex resumed>) = 1 [pid 20691] <... futex resumed>) = 0 [pid 20688] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20694] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20693] <... futex resumed>) = 1 [pid 20692] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20691] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20689] <... futex resumed>) = 0 [pid 20688] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20694] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20693] pipe2( [pid 20692] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20691] <... futex resumed>) = 0 [pid 20689] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20688] <... futex resumed>) = 0 [pid 20694] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20693] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20692] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20691] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20689] <... futex resumed>) = 0 [pid 20688] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20695 ./strace-static-x86_64: Process 20695 attached [pid 20694] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20693] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20692] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20689] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20694] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20693] <... futex resumed>) = 0 [pid 20692] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20689] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20695] set_robust_list(0x555556ba76e0, 24 [pid 20694] <... futex resumed>) = 1 [pid 20693] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20692] <... futex resumed>) = 1 [pid 20691] <... futex resumed>) = 0 [pid 20689] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20688] <... futex resumed>) = 0 [pid 20695] <... set_robust_list resumed>) = 0 [pid 20694] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20693] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20692] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20691] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20689] <... futex resumed>) = 0 [pid 20688] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20695] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20694] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20693] dup(4 [pid 20692] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20691] <... futex resumed>) = 0 [pid 20689] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20688] <... futex resumed>) = 0 [pid 20695] <... prctl resumed>) = 0 [pid 20694] write(5, NULL, 176 [pid 20693] <... dup resumed>) = 5 [pid 20692] write(5, NULL, 176 [pid 20691] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20688] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20695] setpgid(0, 0 [pid 20694] <... write resumed>) = -1 EFAULT (Bad address) [pid 20693] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20692] <... write resumed>) = -1 EFAULT (Bad address) [pid 20695] <... setpgid resumed>) = 0 [pid 20694] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20693] <... futex resumed>) = 1 [pid 20692] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20689] <... futex resumed>) = 0 [pid 20695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20694] <... futex resumed>) = 1 [pid 20693] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20692] <... futex resumed>) = 1 [pid 20691] <... futex resumed>) = 0 [pid 20689] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20688] <... futex resumed>) = 0 [pid 20695] <... openat resumed>) = 3 [pid 20694] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20693] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20692] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20691] exit_group(0 [pid 20689] <... futex resumed>) = 0 [pid 20688] exit_group(0 [pid 20695] write(3, "1000", 4 [pid 20694] <... futex resumed>) = ? [pid 20693] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20692] <... futex resumed>) = ? [pid 20691] <... exit_group resumed>) = ? [pid 20689] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20688] <... exit_group resumed>) = ? [pid 20695] <... write resumed>) = 4 [pid 20694] +++ exited with 0 +++ [pid 20692] +++ exited with 0 +++ [pid 20691] +++ exited with 0 +++ [pid 20688] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20691, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3607] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20688, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20695] close(3 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] <... openat resumed>) = 3 [pid 3607] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20695] <... close resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 20695] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20695] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] close(3 [pid 20695] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] <... close resumed>) = 0 [pid 20695] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20696 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20695] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20693] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20697 attached [pid 20697] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20697] setpgid(0, 0) = 0 [pid 20697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20697] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 20696 attached [pid 20695] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20693] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20697 [pid 20695] <... clone resumed>, parent_tid=[20698], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20698 [pid 20693] <... futex resumed>) = 1 [pid 20689] <... futex resumed>) = 0 [pid 20697] close(3 [pid 20695] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20693] write(5, NULL, 176 [pid 20689] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20697] <... close resumed>) = 0 [pid 20695] <... futex resumed>) = 0 [pid 20693] <... write resumed>) = -1 EFAULT (Bad address) [pid 20689] <... futex resumed>) = 0 [pid 20697] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20695] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20693] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20689] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20697] <... futex resumed>) = 0 [pid 20693] <... futex resumed>) = 0 [pid 20689] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20697] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20693] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20689] exit_group(0./strace-static-x86_64: Process 20698 attached [pid 20697] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20696] set_robust_list(0x555556ba76e0, 24 [pid 20693] <... futex resumed>) = ? [pid 20689] <... exit_group resumed>) = ? [pid 20698] set_robust_list(0x7f61a3ef39e0, 24 [pid 20697] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20696] <... set_robust_list resumed>) = 0 [pid 20693] +++ exited with 0 +++ [pid 20698] <... set_robust_list resumed>) = 0 [pid 20697] <... mprotect resumed>) = 0 [pid 20696] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20689] +++ exited with 0 +++ [pid 20697] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20696] <... prctl resumed>) = 0 [pid 20698] mkdir("./file0", 0777 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20689, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20697] <... clone resumed>, parent_tid=[20699], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20699 [pid 20696] setpgid(0, 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20698] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20697] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20696] <... setpgid resumed>) = 0 [pid 20698] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20697] <... futex resumed>) = 0 [pid 20696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3606] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20699 attached [pid 20698] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20697] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20696] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20698] <... futex resumed>) = 1 [pid 20696] write(3, "1000", 4 [pid 20695] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20698] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20696] <... write resumed>) = 4 [pid 20695] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 20699] set_robust_list(0x7f61a3ef39e0, 24 [pid 20698] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20696] close(3 [pid 20695] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20698] pipe2( [pid 20695] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20698] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20698] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20700 [pid 20698] <... futex resumed>) = 1 [pid 20695] <... futex resumed>) = 0 [pid 20699] <... set_robust_list resumed>) = 0 [pid 20698] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20695] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20699] mkdir("./file0", 0777 [pid 20698] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20695] <... futex resumed>) = 0 [pid 20699] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20698] dup(4 [pid 20695] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20699] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20698] <... dup resumed>) = 5 [pid 20696] <... close resumed>) = 0 [pid 20699] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20698] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20696] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20699] <... futex resumed>) = 1 [pid 20698] <... futex resumed>) = 1 [pid 20695] <... futex resumed>) = 0 [pid 20699] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20698] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20695] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20698] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20695] <... futex resumed>) = 0 [pid 20698] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20695] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20700 attached [pid 20697] <... futex resumed>) = 0 [pid 20696] <... futex resumed>) = 0 [pid 20700] set_robust_list(0x555556ba76e0, 24 [pid 20697] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20696] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20700] <... set_robust_list resumed>) = 0 [pid 20697] <... futex resumed>) = 1 [pid 20696] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20699] <... futex resumed>) = 0 [pid 20700] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20698] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20697] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20696] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20699] pipe2( [pid 20700] <... prctl resumed>) = 0 [pid 20699] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20696] <... mprotect resumed>) = 0 [pid 20698] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20700] setpgid(0, 0 [pid 20699] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20696] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20700] <... setpgid resumed>) = 0 [pid 20699] <... futex resumed>) = 1 [pid 20698] <... futex resumed>) = 1 [pid 20697] <... futex resumed>) = 0 [pid 20695] <... futex resumed>) = 0 [pid 20700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20699] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20698] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20697] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20696] <... clone resumed>, parent_tid=[20701], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20701 [pid 20695] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20700] <... openat resumed>) = 3 [pid 20699] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20698] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20697] <... futex resumed>) = 0 [pid 20696] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20695] <... futex resumed>) = 0 [pid 20700] write(3, "1000", 4 [pid 20699] dup(4 [pid 20698] write(5, NULL, 176 [pid 20697] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20696] <... futex resumed>) = 0 [pid 20695] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20700] <... write resumed>) = 4 [pid 20699] <... dup resumed>) = 5 [pid 20698] <... write resumed>) = -1 EFAULT (Bad address) [pid 20696] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20700] close(3 [pid 20699] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20698] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20700] <... close resumed>) = 0 [pid 20699] <... futex resumed>) = 1 [pid 20698] <... futex resumed>) = 1 [pid 20697] <... futex resumed>) = 0 [pid 20695] <... futex resumed>) = 0 [pid 20700] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20699] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20698] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20697] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20695] exit_group(0 [pid 20700] <... futex resumed>) = 0 [pid 20699] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20698] <... futex resumed>) = ? [pid 20697] <... futex resumed>) = 0 [pid 20695] <... exit_group resumed>) = ? [pid 20700] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20699] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20698] +++ exited with 0 +++ [pid 20697] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20700] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20700] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20700] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20695] +++ exited with 0 +++ [pid 20700] <... clone resumed>, parent_tid=[20702], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20702 [pid 20700] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20695, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20700] <... futex resumed>) = 0 [pid 20700] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20702 attached [pid 20702] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20702] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20702] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20702] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20700] <... futex resumed>) = 0 [pid 20700] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20700] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20702] <... futex resumed>) = 1 [pid 20702] pipe2([3, 4], 0) = 0 [pid 20702] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20700] <... futex resumed>) = 0 [pid 20700] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20700] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20702] <... futex resumed>) = 1 [pid 20702] dup(4) = 5 [pid 20702] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20700] <... futex resumed>) = 0 [pid 20700] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20700] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20702] <... futex resumed>) = 1 [pid 20702] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005"./strace-static-x86_64: Process 20701 attached [pid 20701] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20701] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20701] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20701] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20696] <... futex resumed>) = 0 [pid 20696] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20696] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20701] <... futex resumed>) = 1 [pid 20701] pipe2([3, 4], 0) = 0 [pid 20701] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20701] <... futex resumed>) = 1 [pid 20696] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20701] dup(4 [pid 20696] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20701] <... dup resumed>) = 5 [pid 20696] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20701] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20696] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20701] <... futex resumed>) = 0 [pid 20696] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20701] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20696] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 20701] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20696] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20701] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20696] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20703 attached [pid 20699] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20703] set_robust_list(0x555556ba76e0, 24 [pid 20699] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20703 [pid 20703] <... set_robust_list resumed>) = 0 [pid 20699] <... futex resumed>) = 1 [pid 20697] <... futex resumed>) = 0 [pid 20703] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20699] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20697] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20703] <... prctl resumed>) = 0 [pid 20699] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20697] <... futex resumed>) = 0 [pid 20703] setpgid(0, 0 [pid 20699] write(5, NULL, 176 [pid 20697] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20703] <... setpgid resumed>) = 0 [pid 20699] <... write resumed>) = -1 EFAULT (Bad address) [pid 20703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20699] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20703] <... openat resumed>) = 3 [pid 20699] <... futex resumed>) = 0 [pid 20703] write(3, "1000", 4 [pid 20699] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20697] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20703] <... write resumed>) = 4 [pid 20697] exit_group(0 [pid 20703] close(3 [pid 20699] <... futex resumed>) = ? [pid 20697] <... exit_group resumed>) = ? [pid 20703] <... close resumed>) = 0 [pid 20699] +++ exited with 0 +++ [pid 20703] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20697] +++ exited with 0 +++ [pid 20702] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20703] <... futex resumed>) = 0 [pid 20702] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20697, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20703] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20703] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20702] <... futex resumed>) = 1 [pid 20700] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20703] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20702] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20700] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20703] <... mprotect resumed>) = 0 [pid 20702] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20700] <... futex resumed>) = 0 [pid 20703] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20702] write(5, NULL, 176 [pid 20700] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20702] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20703] <... clone resumed>, parent_tid=[20704], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20704 [pid 20702] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20703] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20700] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20703] <... futex resumed>) = 0 [pid 20702] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20700] exit_group(0 [pid 20701] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20703] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20702] <... futex resumed>) = ? [pid 20701] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20700] <... exit_group resumed>) = ? [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20704 attached [pid 20702] +++ exited with 0 +++ [pid 20701] <... futex resumed>) = 1 [pid 20700] +++ exited with 0 +++ [pid 20696] <... futex resumed>) = 0 [pid 3604] close(3 [pid 20704] set_robust_list(0x7f61a3ef39e0, 24 [pid 20701] write(5, NULL, 176 [pid 20696] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 20704] <... set_robust_list resumed>) = 0 [pid 20701] <... write resumed>) = -1 EFAULT (Bad address) [pid 20696] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20700, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20704] mkdir("./file0", 0777 [pid 20701] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20696] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20696] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20701] <... futex resumed>) = 0 [pid 20704] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20696] exit_group(0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20704] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20696] <... exit_group resumed>) = ? [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20705 ./strace-static-x86_64: Process 20705 attached [pid 20704] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20701] +++ exited with 0 +++ [pid 20696] +++ exited with 0 +++ [pid 20705] set_robust_list(0x555556ba76e0, 24 [pid 20704] <... futex resumed>) = 1 [pid 20703] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20696, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20705] <... set_robust_list resumed>) = 0 [pid 20704] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20703] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3606] <... openat resumed>) = 3 [pid 20705] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20704] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20703] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20705] <... prctl resumed>) = 0 [pid 20704] pipe2( [pid 20703] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20705] setpgid(0, 0 [pid 20704] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3606] close(3 [pid 20705] <... setpgid resumed>) = 0 [pid 20704] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] <... close resumed>) = 0 [pid 20705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20704] <... futex resumed>) = 1 [pid 20703] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20705] <... openat resumed>) = 3 [pid 20704] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20703] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20705] write(3, "1000", 4 [pid 20704] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20703] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20706 [pid 20705] <... write resumed>) = 4 [pid 20704] dup(4 [pid 20703] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20705] close(3 [pid 20704] <... dup resumed>) = 5 [pid 20705] <... close resumed>) = 0 [pid 20704] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20705] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20704] <... futex resumed>) = 1 [pid 20703] <... futex resumed>) = 0 [pid 20705] <... futex resumed>) = 0 [pid 20704] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20703] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20705] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20704] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20703] <... futex resumed>) = 0 [pid 20705] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20704] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20703] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20705] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20705] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20705] <... clone resumed>, parent_tid=[20707], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20707 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20705] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 20705] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20705] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20708 attached ./strace-static-x86_64: Process 20707 attached ./strace-static-x86_64: Process 20706 attached [pid 20704] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20708 [pid 20708] set_robust_list(0x555556ba76e0, 24 [pid 20707] set_robust_list(0x7f61a3ef39e0, 24 [pid 20706] set_robust_list(0x555556ba76e0, 24 [pid 20704] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20708] <... set_robust_list resumed>) = 0 [pid 20707] <... set_robust_list resumed>) = 0 [pid 20706] <... set_robust_list resumed>) = 0 [pid 20704] <... futex resumed>) = 1 [pid 20703] <... futex resumed>) = 0 [pid 20708] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20707] mkdir("./file0", 0777 [pid 20706] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20704] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20703] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20708] <... prctl resumed>) = 0 [pid 20707] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20706] <... prctl resumed>) = 0 [pid 20704] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20703] <... futex resumed>) = 0 [pid 20708] setpgid(0, 0 [pid 20707] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20706] setpgid(0, 0 [pid 20704] write(5, NULL, 176 [pid 20703] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20708] <... setpgid resumed>) = 0 [pid 20707] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20706] <... setpgid resumed>) = 0 [pid 20704] <... write resumed>) = -1 EFAULT (Bad address) [pid 20708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20707] <... futex resumed>) = 1 [pid 20706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20705] <... futex resumed>) = 0 [pid 20704] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20708] <... openat resumed>) = 3 [pid 20707] pipe2( [pid 20706] <... openat resumed>) = 3 [pid 20705] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20704] <... futex resumed>) = 1 [pid 20703] <... futex resumed>) = 0 [pid 20708] write(3, "1000", 4 [pid 20707] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20706] write(3, "1000", 4 [pid 20705] <... futex resumed>) = 0 [pid 20704] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20703] exit_group(0 [pid 20705] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20704] <... futex resumed>) = ? [pid 20703] <... exit_group resumed>) = ? [pid 20708] <... write resumed>) = 4 [pid 20707] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20706] <... write resumed>) = 4 [pid 20704] +++ exited with 0 +++ [pid 20703] +++ exited with 0 +++ [pid 20708] close(3 [pid 20707] <... futex resumed>) = 1 [pid 20706] close(3 [pid 20705] <... futex resumed>) = 0 [pid 20708] <... close resumed>) = 0 [pid 20707] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20706] <... close resumed>) = 0 [pid 20705] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20703, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20708] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20707] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20706] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20705] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20708] <... futex resumed>) = 0 [pid 20707] dup(4 [pid 20706] <... futex resumed>) = 0 [pid 20705] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 20708] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20707] <... dup resumed>) = 5 [pid 20706] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20708] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20707] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20706] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20708] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20707] <... futex resumed>) = 1 [pid 20706] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20705] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20708] <... mprotect resumed>) = 0 [pid 20707] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20706] <... mprotect resumed>) = 0 [pid 20705] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20708] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20707] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20706] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20705] <... futex resumed>) = 0 [pid 20705] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20707] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20708] <... clone resumed>, parent_tid=[20709], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20709 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20711 [pid 20708] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20706] <... clone resumed>, parent_tid=[20710], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20710 ./strace-static-x86_64: Process 20709 attached [pid 20709] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20706] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20708] <... futex resumed>) = 0 [pid 20706] <... futex resumed>) = 0 [pid 20708] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20709] mkdir("./file0", 0777 [pid 20706] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20711 attached [pid 20709] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20711] set_robust_list(0x555556ba76e0, 24 [pid 20709] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 20710 attached [pid 20711] <... set_robust_list resumed>) = 0 [pid 20709] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20711] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20710] set_robust_list(0x7f61a3ef39e0, 24 [pid 20709] <... futex resumed>) = 1 [pid 20711] <... prctl resumed>) = 0 [pid 20710] <... set_robust_list resumed>) = 0 [pid 20709] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20711] setpgid(0, 0 [pid 20710] mkdir("./file0", 0777 [pid 20711] <... setpgid resumed>) = 0 [pid 20710] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20710] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20711] <... openat resumed>) = 3 [pid 20710] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20711] write(3, "1000", 4 [pid 20710] <... futex resumed>) = 1 [pid 20706] <... futex resumed>) = 0 [pid 20711] <... write resumed>) = 4 [pid 20710] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20708] <... futex resumed>) = 0 [pid 20706] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20711] close(3 [pid 20710] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20708] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20706] <... futex resumed>) = 0 [pid 20711] <... close resumed>) = 0 [pid 20710] pipe2( [pid 20709] <... futex resumed>) = 0 [pid 20708] <... futex resumed>) = 1 [pid 20706] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20711] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20710] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20709] pipe2( [pid 20708] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20711] <... futex resumed>) = 0 [pid 20710] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20709] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20711] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20710] <... futex resumed>) = 1 [pid 20709] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20706] <... futex resumed>) = 0 [pid 20711] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20710] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20709] <... futex resumed>) = 1 [pid 20708] <... futex resumed>) = 0 [pid 20706] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20711] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20710] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20709] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20708] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20707] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20706] <... futex resumed>) = 0 [pid 20711] <... mprotect resumed>) = 0 [pid 20710] dup(4 [pid 20709] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20708] <... futex resumed>) = 0 [pid 20707] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20706] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20711] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20710] <... dup resumed>) = 5 [pid 20709] dup(4 [pid 20708] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20707] <... futex resumed>) = 1 [pid 20705] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20712 attached [pid 20710] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20709] <... dup resumed>) = 5 [pid 20707] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20705] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20712] set_robust_list(0x7f61a3ef39e0, 24 [pid 20711] <... clone resumed>, parent_tid=[20712], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20712 [pid 20710] <... futex resumed>) = 1 [pid 20709] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20707] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20706] <... futex resumed>) = 0 [pid 20705] <... futex resumed>) = 0 [pid 20711] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20710] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20709] <... futex resumed>) = 1 [pid 20708] <... futex resumed>) = 0 [pid 20707] write(5, NULL, 176 [pid 20706] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20705] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20712] <... set_robust_list resumed>) = 0 [pid 20711] <... futex resumed>) = 0 [pid 20710] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20709] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20708] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20707] <... write resumed>) = -1 EFAULT (Bad address) [pid 20706] <... futex resumed>) = 0 [pid 20712] mkdir("./file0", 0777 [pid 20711] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20710] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20709] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20708] <... futex resumed>) = 0 [pid 20707] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20706] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20712] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20709] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20708] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20707] <... futex resumed>) = 1 [pid 20705] <... futex resumed>) = 0 [pid 20712] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20707] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20705] exit_group(0 [pid 20712] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20710] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20707] <... futex resumed>) = ? [pid 20705] <... exit_group resumed>) = ? [pid 20712] <... futex resumed>) = 1 [pid 20711] <... futex resumed>) = 0 [pid 20712] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20707] +++ exited with 0 +++ [pid 20711] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20710] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20712] <... futex resumed>) = 0 [pid 20711] <... futex resumed>) = 1 [pid 20710] <... futex resumed>) = 1 [pid 20706] <... futex resumed>) = 0 [pid 20705] +++ exited with 0 +++ [pid 20712] pipe2( [pid 20711] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20710] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20709] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20706] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20705, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20712] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20710] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20709] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20706] <... futex resumed>) = 0 [pid 20712] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20710] write(5, NULL, 176 [pid 20709] <... futex resumed>) = 1 [pid 20708] <... futex resumed>) = 0 [pid 20706] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20712] <... futex resumed>) = 1 [pid 20711] <... futex resumed>) = 0 [pid 20710] <... write resumed>) = -1 EFAULT (Bad address) [pid 20709] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20708] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20712] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20711] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20710] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20709] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20708] <... futex resumed>) = 0 [pid 20712] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20711] <... futex resumed>) = 0 [pid 20710] <... futex resumed>) = 1 [pid 20709] write(5, NULL, 176 [pid 20708] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20706] <... futex resumed>) = 0 [pid 20712] dup(4 [pid 20711] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20710] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20709] <... write resumed>) = -1 EFAULT (Bad address) [pid 20706] exit_group(0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20712] <... dup resumed>) = 5 [pid 20710] <... futex resumed>) = ? [pid 20709] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20706] <... exit_group resumed>) = ? [pid 3604] <... openat resumed>) = 3 [pid 20712] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20710] +++ exited with 0 +++ [pid 20709] <... futex resumed>) = 1 [pid 20708] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20712] <... futex resumed>) = 1 [pid 20711] <... futex resumed>) = 0 [pid 20709] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20712] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20711] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20708] exit_group(0 [pid 20706] +++ exited with 0 +++ [pid 3604] close(3 [pid 20712] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20711] <... futex resumed>) = 0 [pid 20709] <... futex resumed>) = ? [pid 20708] <... exit_group resumed>) = ? [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20706, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] <... close resumed>) = 0 [pid 20712] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20711] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20709] +++ exited with 0 +++ [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20708] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20708, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20713 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3./strace-static-x86_64: Process 20713 attached ) = 0 [pid 20713] set_robust_list(0x555556ba76e0, 24 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20713] <... set_robust_list resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20713] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20713] <... prctl resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20713] setpgid(0, 0 [pid 3606] close(3 [pid 20713] <... setpgid resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20713] <... openat resumed>) = 3 [pid 20713] write(3, "1000", 4 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20714 [pid 20713] <... write resumed>) = 4 [pid 20713] close(3) = 0 [pid 20713] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20715 [pid 20713] <... futex resumed>) = 0 [pid 20713] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20713] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 20714 attached [pid 20713] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20714] set_robust_list(0x555556ba76e0, 24./strace-static-x86_64: Process 20715 attached [pid 20713] <... clone resumed>, parent_tid=[20716], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20716 [pid 20715] set_robust_list(0x555556ba76e0, 24 [pid 20714] <... set_robust_list resumed>) = 0 [pid 20713] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20716 attached [pid 20715] <... set_robust_list resumed>) = 0 [pid 20714] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20713] <... futex resumed>) = 0 [pid 20716] set_robust_list(0x7f61a3ef39e0, 24 [pid 20714] <... prctl resumed>) = 0 [pid 20713] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20712] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20716] <... set_robust_list resumed>) = 0 [pid 20715] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20714] setpgid(0, 0 [pid 20712] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20716] mkdir("./file0", 0777 [pid 20715] <... prctl resumed>) = 0 [pid 20714] <... setpgid resumed>) = 0 [pid 20712] <... futex resumed>) = 1 [pid 20711] <... futex resumed>) = 0 [pid 20716] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20715] setpgid(0, 0 [pid 20714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20712] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20711] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20716] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20715] <... setpgid resumed>) = 0 [pid 20714] <... openat resumed>) = 3 [pid 20712] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20711] <... futex resumed>) = 0 [pid 20716] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20714] write(3, "1000", 4 [pid 20712] write(5, NULL, 176 [pid 20711] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20716] <... futex resumed>) = 1 [pid 20714] <... write resumed>) = 4 [pid 20713] <... futex resumed>) = 0 [pid 20716] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20714] close(3 [pid 20713] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20712] <... write resumed>) = -1 EFAULT (Bad address) [pid 20715] <... openat resumed>) = 3 [pid 20716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20714] <... close resumed>) = 0 [pid 20713] <... futex resumed>) = 0 [pid 20712] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20715] write(3, "1000", 4 [pid 20716] pipe2( [pid 20715] <... write resumed>) = 4 [pid 20714] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20713] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20712] <... futex resumed>) = 1 [pid 20711] <... futex resumed>) = 0 [pid 20716] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20715] close(3 [pid 20714] <... futex resumed>) = 0 [pid 20712] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20711] exit_group(0 [pid 20716] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20715] <... close resumed>) = 0 [pid 20714] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20712] <... futex resumed>) = ? [pid 20711] <... exit_group resumed>) = ? [pid 20716] <... futex resumed>) = 1 [pid 20715] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20714] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20713] <... futex resumed>) = 0 [pid 20712] +++ exited with 0 +++ [pid 20716] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20715] <... futex resumed>) = 0 [pid 20714] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20713] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20711] +++ exited with 0 +++ [pid 20716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20715] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20714] <... mprotect resumed>) = 0 [pid 20713] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20711, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20715] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20713] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20716] dup(4 [pid 20715] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20716] <... dup resumed>) = 5 [pid 20715] <... mprotect resumed>) = 0 [pid 20714] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20716] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20715] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20718 attached [pid 20716] <... futex resumed>) = 1 [pid 20714] <... clone resumed>, parent_tid=[20717], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20717 [pid 20713] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20716] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20715] <... clone resumed>, parent_tid=[20718], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20718 [pid 20714] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20713] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20715] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20714] <... futex resumed>) = 0 [pid 20713] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20716] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20715] <... futex resumed>) = 0 [pid 20714] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20713] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... close resumed>) = 0 [pid 20715] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20719 ./strace-static-x86_64: Process 20717 attached [pid 20717] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20717] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20717] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20717] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20714] <... futex resumed>) = 0 [pid 20714] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20717] pipe2( [pid 20714] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20717] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20717] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20714] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20719 attached [pid 20717] dup(4 [pid 20714] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20714] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20719] set_robust_list(0x555556ba76e0, 24 [pid 20717] <... dup resumed>) = 5 [pid 20716] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20719] <... set_robust_list resumed>) = 0 [pid 20717] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20716] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20719] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20718] set_robust_list(0x7f61a3ef39e0, 24 [pid 20717] <... futex resumed>) = 1 [pid 20716] <... futex resumed>) = 1 [pid 20714] <... futex resumed>) = 0 [pid 20713] <... futex resumed>) = 0 [pid 20719] <... prctl resumed>) = 0 [pid 20718] <... set_robust_list resumed>) = 0 [pid 20717] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20716] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20714] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20713] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20719] setpgid(0, 0 [pid 20718] mkdir("./file0", 0777 [pid 20717] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20716] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20714] <... futex resumed>) = 0 [pid 20713] <... futex resumed>) = 0 [pid 20719] <... setpgid resumed>) = 0 [pid 20718] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20717] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20716] write(5, NULL, 176 [pid 20714] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20713] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20718] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20716] <... write resumed>) = -1 EFAULT (Bad address) [pid 20719] <... openat resumed>) = 3 [pid 20718] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20716] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20719] write(3, "1000", 4 [pid 20718] <... futex resumed>) = 1 [pid 20716] <... futex resumed>) = 1 [pid 20715] <... futex resumed>) = 0 [pid 20713] <... futex resumed>) = 0 [pid 20719] <... write resumed>) = 4 [pid 20718] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20716] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20715] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20713] exit_group(0 [pid 20719] close(3 [pid 20718] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20717] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20715] <... futex resumed>) = 0 [pid 20716] <... futex resumed>) = ? [pid 20713] <... exit_group resumed>) = ? [pid 20719] <... close resumed>) = 0 [pid 20718] pipe2( [pid 20716] +++ exited with 0 +++ [pid 20715] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20719] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20719] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20713] +++ exited with 0 +++ [pid 20719] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20718] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20717] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20713, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20719] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20718] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20714] <... futex resumed>) = 0 [pid 20717] <... futex resumed>) = 1 [pid 20719] <... mprotect resumed>) = 0 [pid 20718] <... futex resumed>) = 1 [pid 20717] write(5, NULL, 176 [pid 20715] <... futex resumed>) = 0 [pid 20714] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20719] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20718] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20717] <... write resumed>) = -1 EFAULT (Bad address) [pid 20715] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20714] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20720 attached [pid 20718] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20717] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20715] <... futex resumed>) = 0 [pid 20714] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20719] <... clone resumed>, parent_tid=[20720], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20720 [pid 20718] dup(4 [pid 20717] <... futex resumed>) = 0 [pid 20715] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20714] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20719] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20718] <... dup resumed>) = 5 [pid 20717] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20714] exit_group(0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20719] <... futex resumed>) = 0 [pid 20718] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20717] <... futex resumed>) = ? [pid 20714] <... exit_group resumed>) = ? [pid 20719] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20718] <... futex resumed>) = 1 [pid 20717] +++ exited with 0 +++ [pid 20715] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20715] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20715] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20714] +++ exited with 0 +++ [pid 20718] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20714, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20720] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20720] mkdir("./file0", 0777 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20720] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20720] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3604] close(3 [pid 20720] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20720] <... futex resumed>) = 1 [pid 20719] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 3604] <... close resumed>) = 0 [pid 20720] pipe2( [pid 20719] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20720] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20719] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20720] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20719] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 20720] <... futex resumed>) = 0 [pid 20719] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20720] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20719] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20718] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20720] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20719] <... futex resumed>) = 0 [pid 20718] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20720] dup(4 [pid 20719] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20718] <... futex resumed>) = 1 [pid 20715] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20722 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20721 [pid 20720] <... dup resumed>) = 5 [pid 20718] write(5, NULL, 176 [pid 20715] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20720] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20718] <... write resumed>) = -1 EFAULT (Bad address) [pid 20715] <... futex resumed>) = 0 [pid 20720] <... futex resumed>) = 1 [pid 20719] <... futex resumed>) = 0 [pid 20718] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20715] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20720] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20719] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20718] <... futex resumed>) = 0 [pid 20715] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20720] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20719] <... futex resumed>) = 0 [pid 20718] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20715] exit_group(0 [pid 20720] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20719] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20718] <... futex resumed>) = ? [pid 20715] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20722 attached [pid 20722] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20722] setpgid(0, 0) = 0 [pid 20722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20718] +++ exited with 0 +++ [pid 20715] +++ exited with 0 +++ [pid 20722] write(3, "1000", 4) = 4 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20715, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20722] close(3 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20722] <... close resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20722] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20721 attached [pid 20722] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20722] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] close(3 [pid 20722] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] <... close resumed>) = 0 [pid 20721] set_robust_list(0x555556ba76e0, 24 [pid 20722] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20721] <... set_robust_list resumed>) = 0 [pid 20722] <... mprotect resumed>) = 0 [pid 20720] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20722] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20720] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20721] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20720] <... futex resumed>) = 1 [pid 20719] <... futex resumed>) = 0 [pid 20722] <... clone resumed>, parent_tid=[20724], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20724 [pid 20721] <... prctl resumed>) = 0 [pid 20720] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20719] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20723 [pid 20722] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20720] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20719] <... futex resumed>) = 0 [pid 20721] setpgid(0, 0 [pid 20722] <... futex resumed>) = 0 [pid 20720] write(5, NULL, 176 [pid 20719] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20721] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 20723 attached [pid 20722] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20720] <... write resumed>) = -1 EFAULT (Bad address) [pid 20723] set_robust_list(0x555556ba76e0, 24 [pid 20721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20720] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20723] <... set_robust_list resumed>) = 0 [pid 20720] <... futex resumed>) = 1 [pid 20721] <... openat resumed>) = 3 [pid 20719] <... futex resumed>) = 0 [pid 20723] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20721] write(3, "1000", 4 [pid 20720] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20719] exit_group(0 [pid 20723] <... prctl resumed>) = 0 [pid 20721] <... write resumed>) = 4 [pid 20720] <... futex resumed>) = ? [pid 20719] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20724 attached [pid 20723] setpgid(0, 0 [pid 20721] close(3 [pid 20720] +++ exited with 0 +++ [pid 20719] +++ exited with 0 +++ [pid 20723] <... setpgid resumed>) = 0 [pid 20721] <... close resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20719, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20724] set_robust_list(0x7f61a3ef39e0, 24 [pid 20723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20721] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20724] <... set_robust_list resumed>) = 0 [pid 20723] <... openat resumed>) = 3 [pid 20721] <... futex resumed>) = 0 [pid 20723] write(3, "1000", 4 [pid 20721] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20724] mkdir("./file0", 0777 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20724] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20723] <... write resumed>) = 4 [pid 20721] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] <... openat resumed>) = 3 [pid 20724] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20723] close(3 [pid 20721] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20724] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20723] <... close resumed>) = 0 [pid 20721] <... mprotect resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20724] <... futex resumed>) = 1 [pid 20723] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20722] <... futex resumed>) = 0 [pid 20721] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] close(3 [pid 20724] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20723] <... futex resumed>) = 0 [pid 20722] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20724] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20723] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20722] <... futex resumed>) = 0 [pid 20721] <... clone resumed>, parent_tid=[20725], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20725 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20724] pipe2( [pid 20723] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20722] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20721] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20724] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20723] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20721] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20726 [pid 20724] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20723] <... mprotect resumed>) = 0 [pid 20721] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20725 attached [pid 20724] <... futex resumed>) = 1 [pid 20723] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20722] <... futex resumed>) = 0 [pid 20725] set_robust_list(0x7f61a3ef39e0, 24 [pid 20724] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20722] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20725] <... set_robust_list resumed>) = 0 [pid 20723] <... clone resumed>, parent_tid=[20727], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20727 [pid 20722] <... futex resumed>) = 0 [pid 20724] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20725] mkdir("./file0", 0777 [pid 20723] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20722] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20725] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20723] <... futex resumed>) = 0 [pid 20725] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20723] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20725] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20721] <... futex resumed>) = 0 [pid 20725] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20721] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20725] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20725] pipe2(./strace-static-x86_64: Process 20727 attached [3, 4], 0) = 0 [pid 20724] dup(4 [pid 20721] <... futex resumed>) = 0 [pid 20727] set_robust_list(0x7f61a3ef39e0, 24 [pid 20725] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20724] <... dup resumed>) = 5 [pid 20721] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20727] <... set_robust_list resumed>) = 0 [pid 20725] <... futex resumed>) = 0 [pid 20724] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20721] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20727] mkdir("./file0", 0777 [pid 20725] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20724] <... futex resumed>) = 1 [pid 20722] <... futex resumed>) = 0 [pid 20721] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20727] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20725] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20724] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20722] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20721] <... futex resumed>) = 0 [pid 20727] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20725] dup(4 [pid 20724] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20722] <... futex resumed>) = 0 [pid 20721] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20727] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20725] <... dup resumed>) = 5 [pid 20724] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20722] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20727] <... futex resumed>) = 1 [pid 20725] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20723] <... futex resumed>) = 0 [pid 20727] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20725] <... futex resumed>) = 1 [pid 20723] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20721] <... futex resumed>) = 0 [pid 20727] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20725] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20723] <... futex resumed>) = 0 [pid 20721] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20727] pipe2( [pid 20725] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20723] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20721] <... futex resumed>) = 0 [pid 20727] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20725] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20721] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20727] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20723] <... futex resumed>) = 0 [pid 20727] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20723] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20727] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20723] <... futex resumed>) = 0 [pid 20727] dup(4 [pid 20723] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20727] <... dup resumed>) = 5 [pid 20727] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20723] <... futex resumed>) = 0 [pid 20727] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20723] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20727] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20723] <... futex resumed>) = 0 [pid 20727] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20723] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20726 attached [pid 20726] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20726] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20725] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20724] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20725] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20724] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20726] <... prctl resumed>) = 0 [pid 20725] <... futex resumed>) = 1 [pid 20724] <... futex resumed>) = 1 [pid 20722] <... futex resumed>) = 0 [pid 20721] <... futex resumed>) = 0 [pid 20725] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20724] write(5, NULL, 176 [pid 20722] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20721] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20726] setpgid(0, 0) = 0 [pid 20725] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20724] <... write resumed>) = -1 EFAULT (Bad address) [pid 20722] <... futex resumed>) = 0 [pid 20721] <... futex resumed>) = 0 [pid 20725] write(5, NULL, 176 [pid 20724] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20722] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20721] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20727] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20725] <... write resumed>) = -1 EFAULT (Bad address) [pid 20724] <... futex resumed>) = 0 [pid 20722] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20727] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20725] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20724] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20722] exit_group(0 [pid 20727] <... futex resumed>) = 1 [pid 20726] <... openat resumed>) = 3 [pid 20725] <... futex resumed>) = 1 [pid 20724] <... futex resumed>) = ? [pid 20723] <... futex resumed>) = 0 [pid 20722] <... exit_group resumed>) = ? [pid 20721] <... futex resumed>) = 0 [pid 20727] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20726] write(3, "1000", 4 [pid 20725] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20724] +++ exited with 0 +++ [pid 20723] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20727] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20726] <... write resumed>) = 4 [pid 20723] <... futex resumed>) = 0 [pid 20722] +++ exited with 0 +++ [pid 20721] exit_group(0 [pid 20727] write(5, NULL, 176 [pid 20726] close(3 [pid 20725] <... futex resumed>) = ? [pid 20723] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20721] <... exit_group resumed>) = ? [pid 20727] <... write resumed>) = -1 EFAULT (Bad address) [pid 20726] <... close resumed>) = 0 [pid 20725] +++ exited with 0 +++ [pid 20726] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20727] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20726] <... futex resumed>) = 0 [pid 20721] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20722, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20727] <... futex resumed>) = 1 [pid 20726] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20723] <... futex resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20721, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20727] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20726] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20723] exit_group(0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20727] <... futex resumed>) = ? [pid 20726] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20723] <... exit_group resumed>) = ? [pid 20727] +++ exited with 0 +++ [pid 20726] <... mprotect resumed>) = 0 [pid 20723] +++ exited with 0 +++ [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20726] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20723, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3606] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20726] <... clone resumed>, parent_tid=[20728], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20728 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20726] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] close(3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20726] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20729 ./strace-static-x86_64: Process 20728 attached [pid 20728] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20728] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20728] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20728] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20728] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20729 attached [pid 20729] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20729] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3604] <... openat resumed>) = 3 [pid 20726] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20726] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20726] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20728] <... futex resumed>) = 0 [pid 20726] <... futex resumed>) = 1 [pid 3607] close(3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20729] <... prctl resumed>) = 0 [pid 20728] pipe2( [pid 20726] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 3604] close(3 [pid 20729] setpgid(0, 0 [pid 20728] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... close resumed>) = 0 [pid 20729] <... setpgid resumed>) = 0 [pid 20728] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20728] <... futex resumed>) = 1 [pid 20729] <... openat resumed>) = 3 [pid 20728] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20726] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20729] write(3, "1000", 4 [pid 20726] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20730 [pid 20729] <... write resumed>) = 4 [pid 20729] close(3) = 0 [pid 20728] <... futex resumed>) = 0 [pid 20726] <... futex resumed>) = 1 [pid 20729] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20728] dup(4 [pid 20726] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20731 [pid 20729] <... futex resumed>) = 0 [pid 20728] <... dup resumed>) = 5 [pid 20729] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20728] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20729] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20728] <... futex resumed>) = 1 [pid 20726] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20731 attached [pid 20729] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20728] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20726] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20731] set_robust_list(0x555556ba76e0, 24 [pid 20729] <... mprotect resumed>) = 0 [pid 20728] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20731] <... set_robust_list resumed>) = 0 [pid 20729] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20728] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20731] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20726] <... futex resumed>) = 0 [pid 20731] <... prctl resumed>) = 0 [pid 20729] <... clone resumed>, parent_tid=[20732], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20732 [pid 20726] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20730 attached [pid 20731] setpgid(0, 0 [pid 20729] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20731] <... setpgid resumed>) = 0 [pid 20729] <... futex resumed>) = 0 [pid 20730] set_robust_list(0x555556ba76e0, 24 [pid 20731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20730] <... set_robust_list resumed>) = 0 [pid 20729] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20731] <... openat resumed>) = 3 [pid 20731] write(3, "1000", 4 [pid 20730] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 20732 attached [pid 20731] <... write resumed>) = 4 [pid 20730] <... prctl resumed>) = 0 [pid 20732] set_robust_list(0x7f61a3ef39e0, 24 [pid 20731] close(3 [pid 20730] setpgid(0, 0 [pid 20732] <... set_robust_list resumed>) = 0 [pid 20731] <... close resumed>) = 0 [pid 20730] <... setpgid resumed>) = 0 [pid 20728] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20732] mkdir("./file0", 0777 [pid 20731] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20728] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20732] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20731] <... futex resumed>) = 0 [pid 20728] <... futex resumed>) = 1 [pid 20726] <... futex resumed>) = 0 [pid 20732] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20731] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20730] <... openat resumed>) = 3 [pid 20728] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20726] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20732] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20731] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20730] write(3, "1000", 4 [pid 20728] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20726] <... futex resumed>) = 0 [pid 20732] <... futex resumed>) = 1 [pid 20731] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20730] <... write resumed>) = 4 [pid 20729] <... futex resumed>) = 0 [pid 20728] write(5, NULL, 176 [pid 20726] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20732] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20731] <... mprotect resumed>) = 0 [pid 20730] close(3 [pid 20729] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20728] <... write resumed>) = -1 EFAULT (Bad address) [pid 20732] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20731] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20730] <... close resumed>) = 0 [pid 20729] <... futex resumed>) = 0 [pid 20728] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20732] pipe2( [pid 20730] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20729] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20728] <... futex resumed>) = 1 [pid 20726] <... futex resumed>) = 0 [pid 20732] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20731] <... clone resumed>, parent_tid=[20733], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20733 [pid 20730] <... futex resumed>) = 0 [pid 20728] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20726] exit_group(0 [pid 20732] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20731] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20730] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20728] <... futex resumed>) = ? [pid 20726] <... exit_group resumed>) = ? [pid 20732] <... futex resumed>) = 1 [pid 20731] <... futex resumed>) = 0 [pid 20730] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20729] <... futex resumed>) = 0 [pid 20728] +++ exited with 0 +++ [pid 20732] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20731] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20729] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20732] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20729] <... futex resumed>) = 0 [pid 20732] dup(4 [pid 20730] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20729] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20726] +++ exited with 0 +++ [pid 20732] <... dup resumed>) = 5 [pid 20730] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 20733 attached [pid 20732] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20730] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20726, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20733] set_robust_list(0x7f61a3ef39e0, 24 [pid 20732] <... futex resumed>) = 1 [pid 20729] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20733] <... set_robust_list resumed>) = 0 [pid 20732] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20730] <... clone resumed>, parent_tid=[20734], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20734 [pid 20729] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20733] mkdir("./file0", 0777 [pid 20732] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20730] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20729] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20733] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20732] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20730] <... futex resumed>) = 0 [pid 20729] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20734 attached [pid 20733] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3601] close(3 [pid 20733] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20733] <... futex resumed>) = 1 [pid 20731] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20733] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20731] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20733] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20731] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20735 [pid 20733] pipe2( [pid 20731] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20733] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20733] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20731] <... futex resumed>) = 0 [pid 20733] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20731] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20733] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20731] <... futex resumed>) = 0 [pid 20733] dup(4 [pid 20731] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20730] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20734] set_robust_list(0x7f61a3ef39e0, 24 [pid 20733] <... dup resumed>) = 5 [pid 20734] <... set_robust_list resumed>) = 0 [pid 20733] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20732] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20735 attached [pid 20734] mkdir("./file0", 0777 [pid 20733] <... futex resumed>) = 1 [pid 20732] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20731] <... futex resumed>) = 0 [pid 20735] set_robust_list(0x555556ba76e0, 24 [pid 20734] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20733] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20732] <... futex resumed>) = 1 [pid 20731] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20729] <... futex resumed>) = 0 [pid 20735] <... set_robust_list resumed>) = 0 [pid 20734] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20733] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20732] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20731] <... futex resumed>) = 0 [pid 20729] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20735] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20734] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20733] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20732] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20731] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20729] <... futex resumed>) = 0 [pid 20735] <... prctl resumed>) = 0 [pid 20734] <... futex resumed>) = 1 [pid 20732] write(5, NULL, 176 [pid 20730] <... futex resumed>) = 0 [pid 20729] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20734] pipe2( [pid 20732] <... write resumed>) = -1 EFAULT (Bad address) [pid 20730] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20734] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20732] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20735] setpgid(0, 0 [pid 20730] <... futex resumed>) = 0 [pid 20735] <... setpgid resumed>) = 0 [pid 20734] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20733] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20732] <... futex resumed>) = 1 [pid 20730] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20729] <... futex resumed>) = 0 [pid 20735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20734] <... futex resumed>) = 0 [pid 20733] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20732] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20730] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20729] exit_group(0 [pid 20735] <... openat resumed>) = 3 [pid 20734] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20733] <... futex resumed>) = 1 [pid 20732] <... futex resumed>) = ? [pid 20731] <... futex resumed>) = 0 [pid 20730] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20729] <... exit_group resumed>) = ? [pid 20735] write(3, "1000", 4 [pid 20734] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20733] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20732] +++ exited with 0 +++ [pid 20731] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20730] <... futex resumed>) = 0 [pid 20729] +++ exited with 0 +++ [pid 20735] <... write resumed>) = 4 [pid 20734] dup(4 [pid 20733] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20731] <... futex resumed>) = 0 [pid 20730] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20735] close(3 [pid 20734] <... dup resumed>) = 5 [pid 20733] write(5, NULL, 176 [pid 20731] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20729, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20735] <... close resumed>) = 0 [pid 20734] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20733] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20735] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20734] <... futex resumed>) = 1 [pid 20733] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20730] <... futex resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20735] <... futex resumed>) = 0 [pid 20734] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20733] <... futex resumed>) = 1 [pid 20731] <... futex resumed>) = 0 [pid 20730] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20735] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20734] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20733] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20731] exit_group(0 [pid 20730] <... futex resumed>) = 0 [pid 20735] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20734] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20733] <... futex resumed>) = ? [pid 20731] <... exit_group resumed>) = ? [pid 20730] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20735] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20733] +++ exited with 0 +++ [pid 20731] +++ exited with 0 +++ [pid 3606] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 20735] <... mprotect resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20731, si_uid=0, si_status=0, si_utime=2, si_stime=0} --- [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20736 ./strace-static-x86_64: Process 20736 attached [pid 20736] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20736] setpgid(0, 0) = 0 [pid 20736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20736] write(3, "1000", 4) = 4 [pid 20736] close(3) = 0 [pid 20736] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20736] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20736] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20736] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20737], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20737 ./strace-static-x86_64: Process 20737 attached [pid 20735] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20734] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 20738 attached [pid 20737] set_robust_list(0x7f61a3ef39e0, 24 [pid 20736] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20734] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 20736] <... futex resumed>) = 0 [pid 20735] <... clone resumed>, parent_tid=[20738], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20738 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20736] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20735] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20737] <... set_robust_list resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20734] <... futex resumed>) = 1 [pid 20730] <... futex resumed>) = 0 [pid 20738] set_robust_list(0x7f61a3ef39e0, 24 [pid 20735] <... futex resumed>) = 0 [pid 3604] close(3 [pid 20735] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20738] <... set_robust_list resumed>) = 0 [pid 20737] mkdir("./file0", 0777 [pid 20734] write(5, NULL, 176 [pid 20730] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20739 attached [pid 20738] mkdir("./file0", 0777 [pid 20737] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20734] <... write resumed>) = -1 EFAULT (Bad address) [pid 20730] <... futex resumed>) = 0 [pid 20737] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20734] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20730] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20739 [pid 20737] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20734] <... futex resumed>) = 0 [pid 20730] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20737] <... futex resumed>) = 1 [pid 20736] <... futex resumed>) = 0 [pid 20734] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20730] exit_group(0 [pid 20737] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20736] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20734] <... futex resumed>) = ? [pid 20730] <... exit_group resumed>) = ? [pid 20739] set_robust_list(0x555556ba76e0, 24 [pid 20737] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20736] <... futex resumed>) = 0 [pid 20734] +++ exited with 0 +++ [pid 20739] <... set_robust_list resumed>) = 0 [pid 20738] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20739] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20737] pipe2( [pid 20736] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20730] +++ exited with 0 +++ [pid 20739] <... prctl resumed>) = 0 [pid 20738] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20737] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20730, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20739] setpgid(0, 0 [pid 20738] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20737] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20739] <... setpgid resumed>) = 0 [pid 20738] <... futex resumed>) = 1 [pid 20737] <... futex resumed>) = 1 [pid 20736] <... futex resumed>) = 0 [pid 20735] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20738] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20737] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20736] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20735] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20739] <... openat resumed>) = 3 [pid 20738] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20737] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20736] <... futex resumed>) = 0 [pid 20735] <... futex resumed>) = 0 [pid 20739] write(3, "1000", 4 [pid 20738] pipe2( [pid 20737] dup(4 [pid 20736] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20735] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20739] <... write resumed>) = 4 [pid 20738] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20737] <... dup resumed>) = 5 [pid 3607] <... openat resumed>) = 3 [pid 20739] close(3 [pid 20738] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20737] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20739] <... close resumed>) = 0 [pid 20738] <... futex resumed>) = 1 [pid 20737] <... futex resumed>) = 1 [pid 20736] <... futex resumed>) = 0 [pid 20735] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20739] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20738] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20737] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20736] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20735] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 20739] <... futex resumed>) = 0 [pid 20738] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20737] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20736] <... futex resumed>) = 0 [pid 20735] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20737] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20736] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20739] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20738] dup(4 [pid 20735] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20739] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20738] <... dup resumed>) = 5 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20740 ./strace-static-x86_64: Process 20740 attached [pid 20740] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20740] setpgid(0, 0) = 0 [pid 20740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20739] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20738] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20740] <... openat resumed>) = 3 [pid 20739] <... mprotect resumed>) = 0 [pid 20738] <... futex resumed>) = 1 [pid 20737] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20735] <... futex resumed>) = 0 [pid 20739] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20738] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20737] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20735] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20740] write(3, "1000", 4 [pid 20738] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20737] <... futex resumed>) = 1 [pid 20736] <... futex resumed>) = 0 [pid 20735] <... futex resumed>) = 0 [pid 20740] <... write resumed>) = 4 [pid 20739] <... clone resumed>, parent_tid=[20741], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20741 [pid 20738] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20737] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20736] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20735] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20740] close(3 [pid 20739] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20737] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20736] <... futex resumed>) = 0 [pid 20740] <... close resumed>) = 0 [pid 20737] write(5, NULL, 176 [pid 20736] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20740] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20739] <... futex resumed>) = 0 [pid 20737] <... write resumed>) = -1 EFAULT (Bad address) [pid 20740] <... futex resumed>) = 0 [pid 20739] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20737] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20741 attached [pid 20740] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20737] <... futex resumed>) = 1 [pid 20736] <... futex resumed>) = 0 [pid 20741] set_robust_list(0x7f61a3ef39e0, 24 [pid 20740] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20737] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20736] exit_group(0 [pid 20741] <... set_robust_list resumed>) = 0 [pid 20740] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20737] <... futex resumed>) = ? [pid 20736] <... exit_group resumed>) = ? [pid 20741] mkdir("./file0", 0777 [pid 20740] <... mprotect resumed>) = 0 [pid 20737] +++ exited with 0 +++ [pid 20736] +++ exited with 0 +++ [pid 20741] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20740] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20741] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20736, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20741] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20740] <... clone resumed>, parent_tid=[20742], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20742 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20741] <... futex resumed>) = 1 [pid 20740] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20739] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20741] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20740] <... futex resumed>) = 0 [pid 20739] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20740] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20739] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20741] pipe2( [pid 20739] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 20741] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3606] <... close resumed>) = 0 [pid 20741] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20742 attached [pid 20741] <... futex resumed>) = 1 [pid 20739] <... futex resumed>) = 0 [pid 20738] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20742] set_robust_list(0x7f61a3ef39e0, 24 [pid 20741] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20739] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20743 [pid 20742] <... set_robust_list resumed>) = 0 [pid 20741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20739] <... futex resumed>) = 0 [pid 20738] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20742] mkdir("./file0", 0777 [pid 20741] dup(4 [pid 20739] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20742] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20741] <... dup resumed>) = 5 [pid 20738] <... futex resumed>) = 1 [pid 20735] <... futex resumed>) = 0 [pid 20742] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20741] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20738] write(5, NULL, 176 [pid 20735] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20742] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20741] <... futex resumed>) = 1 [pid 20739] <... futex resumed>) = 0 [pid 20738] <... write resumed>) = -1 EFAULT (Bad address) [pid 20735] <... futex resumed>) = 0 [pid 20742] <... futex resumed>) = 1 [pid 20741] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20740] <... futex resumed>) = 0 [pid 20739] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20738] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20735] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20742] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20740] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20739] <... futex resumed>) = 0 [pid 20738] <... futex resumed>) = 0 [pid 20735] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20742] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20741] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20740] <... futex resumed>) = 0 [pid 20739] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20738] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20735] exit_group(0 [pid 20742] pipe2( [pid 20740] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20738] <... futex resumed>) = ? [pid 20735] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20743 attached [pid 20742] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20738] +++ exited with 0 +++ [pid 20742] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20740] <... futex resumed>) = 0 [pid 20742] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20740] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20742] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20740] <... futex resumed>) = 0 [pid 20735] +++ exited with 0 +++ [pid 20742] dup(4 [pid 20740] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20735, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20742] <... dup resumed>) = 5 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20743] set_robust_list(0x555556ba76e0, 24 [pid 20742] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20743] <... set_robust_list resumed>) = 0 [pid 20742] <... futex resumed>) = 1 [pid 20741] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20740] <... futex resumed>) = 0 [pid 20743] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20742] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20741] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20740] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20743] <... prctl resumed>) = 0 [pid 20742] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20741] <... futex resumed>) = 1 [pid 20740] <... futex resumed>) = 0 [pid 20739] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20743] setpgid(0, 0 [pid 20742] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20741] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20740] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20739] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20743] <... setpgid resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20741] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20739] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20743] write(3, "1000", 4) = 4 [pid 20741] write(5, NULL, 176 [pid 20739] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20743] close(3 [pid 20741] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] close(3 [pid 20743] <... close resumed>) = 0 [pid 20741] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20743] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20741] <... futex resumed>) = 1 [pid 20739] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20743] <... futex resumed>) = 0 [pid 20741] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20739] exit_group(0 [pid 20743] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20741] <... futex resumed>) = ? [pid 20739] <... exit_group resumed>) = ? [pid 20743] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20741] +++ exited with 0 +++ [pid 20743] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20739] +++ exited with 0 +++ [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20744 [pid 20743] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20739, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20743] <... clone resumed>, parent_tid=[20745], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20745 [pid 20743] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20743] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20743] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20744 attached ) = -1 ENXIO (No such device or address) [pid 20744] set_robust_list(0x555556ba76e0, 24 [pid 3604] close(3 [pid 20744] <... set_robust_list resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20744] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20744] <... prctl resumed>) = 0 [pid 20744] setpgid(0, 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20746 [pid 20744] <... setpgid resumed>) = 0 [pid 20744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20744] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 20745 attached [pid 20744] close(3) = 0 [pid 20744] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20742] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20746 attached [pid 20745] set_robust_list(0x7f61a3ef39e0, 24 [pid 20744] <... futex resumed>) = 0 [pid 20742] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20746] set_robust_list(0x555556ba76e0, 24 [pid 20745] <... set_robust_list resumed>) = 0 [pid 20744] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20742] <... futex resumed>) = 1 [pid 20740] <... futex resumed>) = 0 [pid 20746] <... set_robust_list resumed>) = 0 [pid 20745] mkdir("./file0", 0777 [pid 20744] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20742] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20740] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20746] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20745] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20744] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20742] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20740] <... futex resumed>) = 0 [pid 20746] <... prctl resumed>) = 0 [pid 20745] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20744] <... mprotect resumed>) = 0 [pid 20742] write(5, NULL, 176 [pid 20740] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20746] setpgid(0, 0 [pid 20745] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20744] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20742] <... write resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20747 attached [pid 20746] <... setpgid resumed>) = 0 [pid 20745] <... futex resumed>) = 1 [pid 20743] <... futex resumed>) = 0 [pid 20742] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20747] set_robust_list(0x7f61a3ef39e0, 24 [pid 20746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20745] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20744] <... clone resumed>, parent_tid=[20747], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20747 [pid 20743] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20742] <... futex resumed>) = 1 [pid 20740] <... futex resumed>) = 0 [pid 20747] <... set_robust_list resumed>) = 0 [pid 20746] <... openat resumed>) = 3 [pid 20745] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20744] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20743] <... futex resumed>) = 0 [pid 20742] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20740] exit_group(0 [pid 20747] mkdir("./file0", 0777 [pid 20746] write(3, "1000", 4 [pid 20745] pipe2( [pid 20744] <... futex resumed>) = 0 [pid 20743] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20742] <... futex resumed>) = ? [pid 20740] <... exit_group resumed>) = ? [pid 20747] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20746] <... write resumed>) = 4 [pid 20745] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20744] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20742] +++ exited with 0 +++ [pid 20740] +++ exited with 0 +++ [pid 20746] close(3 [pid 20745] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20747] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20747] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20746] <... close resumed>) = 0 [pid 20745] <... futex resumed>) = 1 [pid 20743] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20740, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20747] <... futex resumed>) = 1 [pid 20746] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20745] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20744] <... futex resumed>) = 0 [pid 20743] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20747] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20746] <... futex resumed>) = 0 [pid 20745] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20744] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20743] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20747] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20746] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20745] dup(4 [pid 20744] <... futex resumed>) = 0 [pid 20743] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20747] pipe2( [pid 20746] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20745] <... dup resumed>) = 5 [pid 20744] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20747] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20746] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20745] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20747] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20746] <... mprotect resumed>) = 0 [pid 20745] <... futex resumed>) = 1 [pid 20743] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20747] <... futex resumed>) = 1 [pid 20746] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20745] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20744] <... futex resumed>) = 0 [pid 20743] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20747] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20745] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20744] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20743] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20747] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20746] <... clone resumed>, parent_tid=[20748], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20748 [pid 20745] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20744] <... futex resumed>) = 0 [pid 20743] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20748 attached [pid 20747] dup(4 [pid 20746] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20744] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20748] set_robust_list(0x7f61a3ef39e0, 24 [pid 20746] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20748] <... set_robust_list resumed>) = 0 [pid 20746] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] close(3 [pid 20748] mkdir("./file0", 0777 [pid 20747] <... dup resumed>) = 5 [pid 3607] <... close resumed>) = 0 [pid 20748] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20748] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20748] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20749 [pid 20748] <... futex resumed>) = 1 [pid 20747] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20746] <... futex resumed>) = 0 [pid 20748] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20749 attached [pid 20749] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20749] setpgid(0, 0) = 0 [pid 20746] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20747] <... futex resumed>) = 1 [pid 20744] <... futex resumed>) = 0 [pid 20749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20748] <... futex resumed>) = 0 [pid 20747] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20746] <... futex resumed>) = 1 [pid 20744] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20749] <... openat resumed>) = 3 [pid 20748] pipe2( [pid 20747] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20746] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20744] <... futex resumed>) = 0 [pid 20749] write(3, "1000", 4 [pid 20748] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20749] <... write resumed>) = 4 [pid 20748] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20749] close(3 [pid 20748] <... futex resumed>) = 0 [pid 20749] <... close resumed>) = 0 [pid 20748] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20747] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20746] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20744] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20749] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20746] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20749] <... futex resumed>) = 0 [pid 20748] <... futex resumed>) = 0 [pid 20746] <... futex resumed>) = 1 [pid 20749] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20748] dup(4 [pid 20746] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20749] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20748] <... dup resumed>) = 5 [pid 20749] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20748] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20749] <... mprotect resumed>) = 0 [pid 20748] <... futex resumed>) = 1 [pid 20746] <... futex resumed>) = 0 [pid 20749] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20748] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20746] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20750 attached [pid 20748] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20746] <... futex resumed>) = 0 [pid 20750] set_robust_list(0x7f61a3ef39e0, 24 [pid 20749] <... clone resumed>, parent_tid=[20750], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20750 [pid 20748] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20746] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20750] <... set_robust_list resumed>) = 0 [pid 20749] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20749] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20745] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20750] mkdir("./file0", 0777 [pid 20745] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20743] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 20750] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20748] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20745] <... futex resumed>) = 0 [pid 20743] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20750] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20748] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20747] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20745] write(5, NULL, 176 [pid 20743] <... futex resumed>) = 0 [pid 20750] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20748] <... futex resumed>) = 1 [pid 20747] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20746] <... futex resumed>) = 0 [pid 20745] <... write resumed>) = -1 EFAULT (Bad address) [pid 20743] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20750] <... futex resumed>) = 1 [pid 20749] <... futex resumed>) = 0 [pid 20748] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20747] <... futex resumed>) = 1 [pid 20746] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20745] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20744] <... futex resumed>) = 0 [pid 20743] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20750] pipe2( [pid 20749] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20748] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20747] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20746] <... futex resumed>) = 0 [pid 20745] <... futex resumed>) = 0 [pid 20744] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20743] exit_group(0 [pid 20750] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20749] <... futex resumed>) = 0 [pid 20748] write(5, NULL, 176 [pid 20747] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20746] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20744] <... futex resumed>) = 0 [pid 20743] <... exit_group resumed>) = ? [pid 20750] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20749] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20748] <... write resumed>) = -1 EFAULT (Bad address) [pid 20747] write(5, NULL, 176 [pid 20745] +++ exited with 0 +++ [pid 20744] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20743] +++ exited with 0 +++ [pid 20750] <... futex resumed>) = 0 [pid 20749] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20748] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20747] <... write resumed>) = -1 EFAULT (Bad address) [pid 20750] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20749] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20748] <... futex resumed>) = 1 [pid 20747] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20746] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20743, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20750] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20749] <... futex resumed>) = 0 [pid 20748] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20747] <... futex resumed>) = 1 [pid 20746] exit_group(0 [pid 20744] <... futex resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20750] dup(4 [pid 20749] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20748] <... futex resumed>) = ? [pid 20747] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20746] <... exit_group resumed>) = ? [pid 20744] exit_group(0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20750] <... dup resumed>) = 5 [pid 20748] +++ exited with 0 +++ [pid 20746] +++ exited with 0 +++ [pid 20750] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20747] <... futex resumed>) = ? [pid 20744] <... exit_group resumed>) = ? [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20746, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20750] <... futex resumed>) = 1 [pid 20749] <... futex resumed>) = 0 [pid 20747] +++ exited with 0 +++ [pid 3606] <... openat resumed>) = 3 [pid 20749] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20744] +++ exited with 0 +++ [pid 20750] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20749] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20744, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20749] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 3606] <... close resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20751 [pid 3604] <... openat resumed>) = 3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] <... openat resumed>) = 3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3604] close(3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... close resumed>) = 0 [pid 3601] close(3 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... close resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20752 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20753 ./strace-static-x86_64: Process 20751 attached [pid 20751] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20751] setpgid(0, 0) = 0 [pid 20751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20751] write(3, "1000", 4./strace-static-x86_64: Process 20753 attached ) = 4 [pid 20753] set_robust_list(0x555556ba76e0, 24 [pid 20751] close(3 [pid 20750] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20753] <... set_robust_list resumed>) = 0 [pid 20751] <... close resumed>) = 0 [pid 20753] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20751] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20753] <... prctl resumed>) = 0 [pid 20751] <... futex resumed>) = 0 [pid 20753] setpgid(0, 0) = 0 [pid 20751] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20751] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20753] <... openat resumed>) = 3 [pid 20751] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20753] write(3, "1000", 4 [pid 20751] <... mprotect resumed>) = 0 [pid 20753] <... write resumed>) = 4 [pid 20751] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20750] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20753] close(3 [pid 20749] <... futex resumed>) = 0 [pid 20750] <... futex resumed>) = 1 [pid 20753] <... close resumed>) = 0 [pid 20751] <... clone resumed>, parent_tid=[20754], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20754 [pid 20750] write(5, NULL, 176 [pid 20749] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20753] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20751] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20750] <... write resumed>) = -1 EFAULT (Bad address) [pid 20749] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20752 attached [pid 20753] <... futex resumed>) = 0 [pid 20751] <... futex resumed>) = 0 [pid 20750] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20749] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20753] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20751] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20750] <... futex resumed>) = 0 [pid 20749] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20753] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20750] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20749] exit_group(0 [pid 20753] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20752] set_robust_list(0x555556ba76e0, 24 [pid 20750] <... futex resumed>) = ? [pid 20749] <... exit_group resumed>) = ? [pid 20753] <... mprotect resumed>) = 0 [pid 20750] +++ exited with 0 +++ ./strace-static-x86_64: Process 20754 attached [pid 20753] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20754] set_robust_list(0x7f61a3ef39e0, 24 [pid 20752] <... set_robust_list resumed>) = 0 [pid 20749] +++ exited with 0 +++ [pid 20754] <... set_robust_list resumed>) = 0 [pid 20753] <... clone resumed>, parent_tid=[20755], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20755 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20749, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20754] mkdir("./file0", 0777 [pid 20753] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20752] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20754] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20753] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 20755 attached [pid 20754] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20753] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20752] <... prctl resumed>) = 0 [pid 20754] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20752] setpgid(0, 0 [pid 20755] set_robust_list(0x7f61a3ef39e0, 24 [pid 20754] <... futex resumed>) = 1 [pid 20752] <... setpgid resumed>) = 0 [pid 20751] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20755] <... set_robust_list resumed>) = 0 [pid 20754] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20751] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20754] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20752] <... openat resumed>) = 3 [pid 20751] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20755] mkdir("./file0", 0777 [pid 20754] pipe2( [pid 20752] write(3, "1000", 4 [pid 20751] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20755] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20754] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20752] <... write resumed>) = 4 [pid 3607] close(3 [pid 20755] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20754] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20752] close(3 [pid 3607] <... close resumed>) = 0 [pid 20754] <... futex resumed>) = 1 [pid 20751] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20754] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20751] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20754] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20752] <... close resumed>) = 0 [pid 20751] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20756 [pid 20754] dup(4 [pid 20752] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20751] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20755] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20754] <... dup resumed>) = 5 [pid 20752] <... futex resumed>) = 0 [pid 20755] <... futex resumed>) = 1 [pid 20754] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20753] <... futex resumed>) = 0 [pid 20752] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20754] <... futex resumed>) = 1 [pid 20753] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20752] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20755] pipe2( [pid 20751] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20756 attached [pid 20755] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20754] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20753] <... futex resumed>) = 0 [pid 20752] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20751] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20756] set_robust_list(0x555556ba76e0, 24 [pid 20755] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20754] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20753] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20752] <... mprotect resumed>) = 0 [pid 20751] <... futex resumed>) = 0 [pid 20756] <... set_robust_list resumed>) = 0 [pid 20755] <... futex resumed>) = 0 [pid 20754] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20753] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20752] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20751] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20756] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20755] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20753] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20756] <... prctl resumed>) = 0 [pid 20753] <... futex resumed>) = 0 [pid 20756] setpgid(0, 0 [pid 20753] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20756] <... setpgid resumed>) = 0 [pid 20756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20756] write(3, "1000", 4) = 4 [pid 20756] close(3) = 0 [pid 20756] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20755] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20752] <... clone resumed>, parent_tid=[20757], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20757 [pid 20756] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20755] dup(4 [pid 20752] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20756] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20755] <... dup resumed>) = 5 [pid 20752] <... futex resumed>) = 0 [pid 20756] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20755] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20752] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20757 attached [pid 20756] <... mprotect resumed>) = 0 [pid 20755] <... futex resumed>) = 1 [pid 20754] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20753] <... futex resumed>) = 0 [pid 20757] set_robust_list(0x7f61a3ef39e0, 24 [pid 20756] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20755] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20754] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20753] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20758 attached [pid 20757] <... set_robust_list resumed>) = 0 [pid 20754] <... futex resumed>) = 1 [pid 20751] <... futex resumed>) = 0 [pid 20757] mkdir("./file0", 0777 [pid 20756] <... clone resumed>, parent_tid=[20758], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20758 [pid 20754] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20751] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20758] set_robust_list(0x7f61a3ef39e0, 24 [pid 20757] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20756] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20755] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20754] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20753] <... futex resumed>) = 0 [pid 20751] <... futex resumed>) = 0 [pid 20757] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20758] <... set_robust_list resumed>) = 0 [pid 20756] <... futex resumed>) = 0 [pid 20755] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20754] write(5, NULL, 176 [pid 20753] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20751] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20757] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20756] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20754] <... write resumed>) = -1 EFAULT (Bad address) [pid 20757] <... futex resumed>) = 1 [pid 20754] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20752] <... futex resumed>) = 0 [pid 20757] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20754] <... futex resumed>) = 1 [pid 20751] <... futex resumed>) = 0 [pid 20754] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20751] exit_group(0 [pid 20754] <... futex resumed>) = ? [pid 20752] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20751] <... exit_group resumed>) = ? [pid 20757] <... futex resumed>) = 0 [pid 20754] +++ exited with 0 +++ [pid 20752] <... futex resumed>) = 1 [pid 20751] +++ exited with 0 +++ [pid 20757] pipe2( [pid 20752] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20751, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20757] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20757] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20752] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20757] <... futex resumed>) = 0 [pid 20752] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20757] dup(4 [pid 20752] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20757] <... dup resumed>) = 5 [pid 20752] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20757] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20757] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20757] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20759 ./strace-static-x86_64: Process 20759 attached [pid 20759] set_robust_list(0x555556ba76e0, 24 [pid 20752] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20752] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20757] <... futex resumed>) = 0 [pid 20752] <... futex resumed>) = 1 [pid 20757] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20752] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20759] <... set_robust_list resumed>) = 0 [pid 20759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20759] setpgid(0, 0) = 0 [pid 20759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20759] write(3, "1000", 4) = 4 [pid 20759] close(3) = 0 [pid 20759] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20759] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20758] mkdir("./file0", 0777 [pid 20759] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20759] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20758] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20755] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20759] <... clone resumed>, parent_tid=[20760], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20760 [pid 20759] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20759] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20760 attached [pid 20760] set_robust_list(0x7f61a3ef39e0, 24 [pid 20758] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20758] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20755] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20758] <... futex resumed>) = 1 [pid 20757] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20756] <... futex resumed>) = 0 [pid 20755] <... futex resumed>) = 1 [pid 20753] <... futex resumed>) = 0 [pid 20758] pipe2( [pid 20757] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20756] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20755] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20753] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20760] <... set_robust_list resumed>) = 0 [pid 20757] <... futex resumed>) = 1 [pid 20756] <... futex resumed>) = 0 [pid 20760] mkdir("./file0", 0777 [pid 20758] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20757] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20756] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20755] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20753] <... futex resumed>) = 0 [pid 20752] <... futex resumed>) = 0 [pid 20760] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20758] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20756] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20755] write(5, NULL, 176 [pid 20753] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20752] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20760] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20758] <... futex resumed>) = 0 [pid 20757] <... futex resumed>) = 0 [pid 20756] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20755] <... write resumed>) = -1 EFAULT (Bad address) [pid 20752] <... futex resumed>) = 1 [pid 20760] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20758] dup(4 [pid 20757] write(5, NULL, 176 [pid 20756] <... futex resumed>) = 0 [pid 20755] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20752] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20760] <... futex resumed>) = 1 [pid 20759] <... futex resumed>) = 0 [pid 20758] <... dup resumed>) = 5 [pid 20757] <... write resumed>) = -1 EFAULT (Bad address) [pid 20756] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20755] <... futex resumed>) = 1 [pid 20753] <... futex resumed>) = 0 [pid 20760] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20759] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20758] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20757] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20756] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20755] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20753] exit_group(0 [pid 20760] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20759] <... futex resumed>) = 0 [pid 20758] <... futex resumed>) = 0 [pid 20757] <... futex resumed>) = 1 [pid 20756] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20755] <... futex resumed>) = ? [pid 20753] <... exit_group resumed>) = ? [pid 20752] <... futex resumed>) = 0 [pid 20760] pipe2( [pid 20759] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20758] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20757] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20756] <... futex resumed>) = 0 [pid 20755] +++ exited with 0 +++ [pid 20760] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20756] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20753] +++ exited with 0 +++ [pid 20752] exit_group(0 [pid 20760] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20757] <... futex resumed>) = ? [pid 20752] <... exit_group resumed>) = ? [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20753, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20760] <... futex resumed>) = 1 [pid 20759] <... futex resumed>) = 0 [pid 20757] +++ exited with 0 +++ [pid 20760] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20759] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20760] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20759] <... futex resumed>) = 0 [pid 20760] dup(4 [pid 20759] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20760] <... dup resumed>) = 5 [pid 20752] +++ exited with 0 +++ [pid 20760] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20759] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20752, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20760] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20759] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20760] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20759] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3601] <... openat resumed>) = 3 [pid 20760] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20759] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3 [pid 3601] close(3 [pid 3604] <... close resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20761 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20762 ./strace-static-x86_64: Process 20762 attached [pid 20758] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20758] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20760] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20760] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20758] <... futex resumed>) = 1 [pid 20756] <... futex resumed>) = 0 [pid 20760] <... futex resumed>) = 1 [pid 20759] <... futex resumed>) = 0 [pid 20758] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20756] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20760] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20759] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20758] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20756] <... futex resumed>) = 0 [pid 20762] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20760] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20759] <... futex resumed>) = 0 [pid 20758] write(5, NULL, 176 [pid 20756] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20762] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20760] write(5, NULL, 176 [pid 20759] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20758] <... write resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20761 attached [pid 20762] <... prctl resumed>) = 0 [pid 20760] <... write resumed>) = -1 EFAULT (Bad address) [pid 20758] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20762] setpgid(0, 0 [pid 20761] set_robust_list(0x555556ba76e0, 24 [pid 20760] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20758] <... futex resumed>) = 1 [pid 20756] <... futex resumed>) = 0 [pid 20762] <... setpgid resumed>) = 0 [pid 20761] <... set_robust_list resumed>) = 0 [pid 20760] <... futex resumed>) = 1 [pid 20759] <... futex resumed>) = 0 [pid 20758] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20756] exit_group(0 [pid 20762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20761] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20760] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20759] exit_group(0 [pid 20758] <... futex resumed>) = ? [pid 20756] <... exit_group resumed>) = ? [pid 20762] <... openat resumed>) = 3 [pid 20761] <... prctl resumed>) = 0 [pid 20760] <... futex resumed>) = ? [pid 20759] <... exit_group resumed>) = ? [pid 20758] +++ exited with 0 +++ [pid 20756] +++ exited with 0 +++ [pid 20762] write(3, "1000", 4 [pid 20761] setpgid(0, 0 [pid 20760] +++ exited with 0 +++ [pid 20759] +++ exited with 0 +++ [pid 20762] <... write resumed>) = 4 [pid 20761] <... setpgid resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20756, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20759, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20762] close(3 [pid 20761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20762] <... close resumed>) = 0 [pid 20761] <... openat resumed>) = 3 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20762] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20761] write(3, "1000", 4 [pid 20762] <... futex resumed>) = 0 [pid 20761] <... write resumed>) = 4 [pid 20762] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20761] close(3 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20762] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20761] <... close resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3606] <... openat resumed>) = 3 [pid 20762] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20761] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20762] <... mprotect resumed>) = 0 [pid 20761] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20762] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20761] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] close(3 [pid 3606] close(3 [pid 20761] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] <... close resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20761] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20761] <... mprotect resumed>) = 0 [pid 20761] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20764 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20765 [pid 20762] <... clone resumed>, parent_tid=[20763], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20763 [pid 20762] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20761] <... clone resumed>, parent_tid=[20766], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20766 [pid 20762] <... futex resumed>) = 0 [pid 20761] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20762] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20761] <... futex resumed>) = 0 [pid 20761] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20764 attached [pid 20764] set_robust_list(0x555556ba76e0, 24) = 0 ./strace-static-x86_64: Process 20765 attached [pid 20764] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20765] set_robust_list(0x555556ba76e0, 24 [pid 20764] <... prctl resumed>) = 0 [pid 20765] <... set_robust_list resumed>) = 0 [pid 20764] setpgid(0, 0 [pid 20765] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20764] <... setpgid resumed>) = 0 [pid 20765] <... prctl resumed>) = 0 [pid 20764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20765] setpgid(0, 0 [pid 20764] <... openat resumed>) = 3 [pid 20765] <... setpgid resumed>) = 0 [pid 20764] write(3, "1000", 4 [pid 20765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20764] <... write resumed>) = 4 [pid 20765] <... openat resumed>) = 3 [pid 20764] close(3 [pid 20765] write(3, "1000", 4 [pid 20764] <... close resumed>) = 0 [pid 20765] <... write resumed>) = 4 [pid 20764] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20766 attached [pid 20765] close(3 [pid 20764] <... futex resumed>) = 0 [pid 20765] <... close resumed>) = 0 [pid 20764] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20765] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20764] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20765] <... futex resumed>) = 0 [pid 20764] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20765] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20764] <... mprotect resumed>) = 0 [pid 20765] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20764] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20765] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20764] <... clone resumed>, parent_tid=[20767], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20767 [pid 20765] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20764] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20765] <... clone resumed>, parent_tid=[20768], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20768 [pid 20764] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20765] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20765] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20767 attached ./strace-static-x86_64: Process 20768 attached [pid 20767] set_robust_list(0x7f61a3ef39e0, 24 [pid 20768] set_robust_list(0x7f61a3ef39e0, 24./strace-static-x86_64: Process 20763 attached [pid 20767] <... set_robust_list resumed>) = 0 [pid 20766] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20763] set_robust_list(0x7f61a3ef39e0, 24 [pid 20768] <... set_robust_list resumed>) = 0 [pid 20767] mkdir("./file0", 0777 [pid 20766] mkdir("./file0", 0777 [pid 20763] <... set_robust_list resumed>) = 0 [pid 20768] mkdir("./file0", 0777 [pid 20767] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20766] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20763] mkdir("./file0", 0777 [pid 20768] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20767] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20768] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20767] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20768] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20767] <... futex resumed>) = 1 [pid 20764] <... futex resumed>) = 0 [pid 20768] <... futex resumed>) = 1 [pid 20767] pipe2( [pid 20765] <... futex resumed>) = 0 [pid 20764] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20768] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20767] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20765] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20764] <... futex resumed>) = 0 [pid 20768] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20767] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20765] <... futex resumed>) = 0 [pid 20764] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20768] pipe2( [pid 20767] <... futex resumed>) = 0 [pid 20765] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20764] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20768] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20767] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20766] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20764] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20763] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20768] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20767] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20764] <... futex resumed>) = 0 [pid 20768] <... futex resumed>) = 1 [pid 20767] dup(4 [pid 20766] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20765] <... futex resumed>) = 0 [pid 20764] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20763] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20768] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20767] <... dup resumed>) = 5 [pid 20766] <... futex resumed>) = 1 [pid 20765] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20763] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20761] <... futex resumed>) = 0 [pid 20768] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20767] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20766] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20765] <... futex resumed>) = 0 [pid 20763] <... futex resumed>) = 1 [pid 20762] <... futex resumed>) = 0 [pid 20761] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20768] dup(4 [pid 20767] <... futex resumed>) = 1 [pid 20766] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20765] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20764] <... futex resumed>) = 0 [pid 20763] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20762] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20761] <... futex resumed>) = 0 [pid 20768] <... dup resumed>) = 5 [pid 20767] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20766] pipe2( [pid 20764] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20763] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20762] <... futex resumed>) = 0 [pid 20761] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20768] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20767] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20766] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20764] <... futex resumed>) = 0 [pid 20763] pipe2( [pid 20762] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20768] <... futex resumed>) = 1 [pid 20767] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20766] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20765] <... futex resumed>) = 0 [pid 20764] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20763] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20768] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20766] <... futex resumed>) = 1 [pid 20765] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20763] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20761] <... futex resumed>) = 0 [pid 20768] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20767] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20766] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20765] <... futex resumed>) = 0 [pid 20763] <... futex resumed>) = 1 [pid 20762] <... futex resumed>) = 0 [pid 20761] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20768] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20767] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20766] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20765] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20763] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20762] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20761] <... futex resumed>) = 0 [pid 20767] <... futex resumed>) = 1 [pid 20766] dup(4 [pid 20764] <... futex resumed>) = 0 [pid 20763] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20762] <... futex resumed>) = 0 [pid 20767] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20766] <... dup resumed>) = 5 [pid 20764] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20763] dup(4 [pid 20762] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20761] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20768] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20767] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20766] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20764] <... futex resumed>) = 0 [pid 20763] <... dup resumed>) = 5 [pid 20761] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20768] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20767] write(5, NULL, 176 [pid 20766] <... futex resumed>) = 0 [pid 20764] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20763] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20761] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20768] <... futex resumed>) = 1 [pid 20767] <... write resumed>) = -1 EFAULT (Bad address) [pid 20766] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20765] <... futex resumed>) = 0 [pid 20763] <... futex resumed>) = 1 [pid 20762] <... futex resumed>) = 0 [pid 20761] <... futex resumed>) = 0 [pid 20768] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20767] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20765] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20763] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20762] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20761] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20768] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20767] <... futex resumed>) = 1 [pid 20765] <... futex resumed>) = 0 [pid 20764] <... futex resumed>) = 0 [pid 20763] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20762] <... futex resumed>) = 0 [pid 20767] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20765] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20764] exit_group(0 [pid 20768] write(5, NULL, 176 [pid 20767] <... futex resumed>) = ? [pid 20764] <... exit_group resumed>) = ? [pid 20763] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20762] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20768] <... write resumed>) = -1 EFAULT (Bad address) [pid 20767] +++ exited with 0 +++ [pid 20764] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20764, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20768] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20768] <... futex resumed>) = 1 [pid 20765] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20765] exit_group(0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20766] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20765] <... exit_group resumed>) = ? [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20768] +++ exited with 0 +++ [pid 20765] +++ exited with 0 +++ [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20769 [pid 20766] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20765, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20769 attached [pid 20766] <... futex resumed>) = 1 [pid 20761] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20770 attached [pid 20769] set_robust_list(0x555556ba76e0, 24 [pid 20766] write(5, NULL, 176 [pid 20761] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20770 [pid 20770] set_robust_list(0x555556ba76e0, 24 [pid 20769] <... set_robust_list resumed>) = 0 [pid 20766] <... write resumed>) = -1 EFAULT (Bad address) [pid 20763] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20761] <... futex resumed>) = 0 [pid 20770] <... set_robust_list resumed>) = 0 [pid 20769] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20766] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20763] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20761] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20770] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20769] <... prctl resumed>) = 0 [pid 20766] <... futex resumed>) = 0 [pid 20763] <... futex resumed>) = 1 [pid 20762] <... futex resumed>) = 0 [pid 20761] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20770] <... prctl resumed>) = 0 [pid 20769] setpgid(0, 0 [pid 20766] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20763] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20762] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20761] exit_group(0 [pid 20770] setpgid(0, 0 [pid 20769] <... setpgid resumed>) = 0 [pid 20766] <... futex resumed>) = ? [pid 20763] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20762] <... futex resumed>) = 0 [pid 20761] <... exit_group resumed>) = ? [pid 20770] <... setpgid resumed>) = 0 [pid 20769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20766] +++ exited with 0 +++ [pid 20763] write(5, NULL, 176 [pid 20762] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20761] +++ exited with 0 +++ [pid 20770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20769] <... openat resumed>) = 3 [pid 20763] <... write resumed>) = -1 EFAULT (Bad address) [pid 20770] <... openat resumed>) = 3 [pid 20769] write(3, "1000", 4 [pid 20763] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20761, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20770] write(3, "1000", 4 [pid 20769] <... write resumed>) = 4 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20769] close(3 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20770] <... write resumed>) = 4 [pid 20769] <... close resumed>) = 0 [pid 20763] <... futex resumed>) = 1 [pid 20762] <... futex resumed>) = 0 [pid 20770] close(3 [pid 20769] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20763] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20762] exit_group(0 [pid 20770] <... close resumed>) = 0 [pid 20769] <... futex resumed>) = 0 [pid 20763] <... futex resumed>) = ? [pid 20762] <... exit_group resumed>) = ? [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20770] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20769] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20763] +++ exited with 0 +++ [pid 3604] <... openat resumed>) = 3 [pid 20770] <... futex resumed>) = 0 [pid 20769] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20762] +++ exited with 0 +++ [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20770] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20769] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20762, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20770] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20769] <... mprotect resumed>) = 0 [pid 3604] close(3 [pid 20770] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20769] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] <... close resumed>) = 0 [pid 20770] <... mprotect resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20771 attached [pid 20770] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20769] <... clone resumed>, parent_tid=[20771], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20771 ./strace-static-x86_64: Process 20773 attached ./strace-static-x86_64: Process 20772 attached [pid 20771] set_robust_list(0x7f61a3ef39e0, 24 [pid 20769] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20771] <... set_robust_list resumed>) = 0 [pid 20770] <... clone resumed>, parent_tid=[20773], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20773 [pid 20769] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20772 [pid 20773] set_robust_list(0x7f61a3ef39e0, 24 [pid 20772] set_robust_list(0x555556ba76e0, 24 [pid 20771] mkdir("./file0", 0777 [pid 20770] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20769] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20773] <... set_robust_list resumed>) = 0 [pid 20771] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20770] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20773] mkdir("./file0", 0777 [pid 20772] <... set_robust_list resumed>) = 0 [pid 20771] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20770] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20773] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20772] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20771] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20773] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20772] <... prctl resumed>) = 0 [pid 20771] <... futex resumed>) = 1 [pid 20769] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20773] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20772] setpgid(0, 0 [pid 20771] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20769] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20773] <... futex resumed>) = 1 [pid 20772] <... setpgid resumed>) = 0 [pid 20771] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20770] <... futex resumed>) = 0 [pid 20769] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20773] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20771] pipe2( [pid 20770] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20769] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20773] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20771] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20770] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20773] pipe2( [pid 20771] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20770] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20773] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20772] <... openat resumed>) = 3 [pid 20771] <... futex resumed>) = 1 [pid 20769] <... futex resumed>) = 0 [pid 20771] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20773] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20769] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20772] write(3, "1000", 4./strace-static-x86_64: Process 20774 attached [pid 20773] <... futex resumed>) = 1 [pid 20772] <... write resumed>) = 4 [pid 20771] <... futex resumed>) = 0 [pid 20770] <... futex resumed>) = 0 [pid 20769] <... futex resumed>) = 1 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20774 [pid 20774] set_robust_list(0x555556ba76e0, 24 [pid 20773] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20772] close(3 [pid 20771] dup(4 [pid 20770] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20769] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20774] <... set_robust_list resumed>) = 0 [pid 20773] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20772] <... close resumed>) = 0 [pid 20771] <... dup resumed>) = 5 [pid 20770] <... futex resumed>) = 0 [pid 20774] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20773] dup(4 [pid 20772] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20771] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20770] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20774] <... prctl resumed>) = 0 [pid 20773] <... dup resumed>) = 5 [pid 20772] <... futex resumed>) = 0 [pid 20771] <... futex resumed>) = 1 [pid 20769] <... futex resumed>) = 0 [pid 20774] setpgid(0, 0 [pid 20773] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20772] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20771] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20769] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20774] <... setpgid resumed>) = 0 [pid 20773] <... futex resumed>) = 1 [pid 20772] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20771] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20770] <... futex resumed>) = 0 [pid 20769] <... futex resumed>) = 0 [pid 20774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20773] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20772] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20771] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20770] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20769] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20774] <... openat resumed>) = 3 [pid 20773] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20772] <... mprotect resumed>) = 0 [pid 20770] <... futex resumed>) = 0 [pid 20774] write(3, "1000", 4 [pid 20773] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20772] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20774] <... write resumed>) = 4 [pid 20770] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20774] close(3 [pid 20772] <... clone resumed>, parent_tid=[20775], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20775 [pid 20774] <... close resumed>) = 0 [pid 20772] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20774] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20772] <... futex resumed>) = 0 [pid 20774] <... futex resumed>) = 0 [pid 20772] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20774] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20774] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20774] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20776], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20776 [pid 20774] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20774] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20776 attached [pid 20776] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20776] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20776] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20776] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20774] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20775 attached [pid 20776] pipe2( [pid 20774] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20771] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20776] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20775] set_robust_list(0x7f61a3ef39e0, 24 [pid 20774] <... futex resumed>) = 0 [pid 20773] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20771] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20776] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20775] <... set_robust_list resumed>) = 0 [pid 20774] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20773] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20771] <... futex resumed>) = 1 [pid 20769] <... futex resumed>) = 0 [pid 20776] <... futex resumed>) = 0 [pid 20775] mkdir("./file0", 0777 [pid 20774] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20773] <... futex resumed>) = 1 [pid 20771] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20770] <... futex resumed>) = 0 [pid 20769] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20776] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20775] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20774] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20773] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20771] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20770] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20769] <... futex resumed>) = 0 [pid 20776] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20775] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20774] <... futex resumed>) = 0 [pid 20773] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20771] write(5, NULL, 176 [pid 20770] <... futex resumed>) = 0 [pid 20769] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20776] dup(4 [pid 20775] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20774] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20773] write(5, NULL, 176 [pid 20771] <... write resumed>) = -1 EFAULT (Bad address) [pid 20770] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20776] <... dup resumed>) = 5 [pid 20775] <... futex resumed>) = 1 [pid 20773] <... write resumed>) = -1 EFAULT (Bad address) [pid 20772] <... futex resumed>) = 0 [pid 20771] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20776] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20775] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20773] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20772] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20771] <... futex resumed>) = 1 [pid 20769] <... futex resumed>) = 0 [pid 20776] <... futex resumed>) = 1 [pid 20775] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20774] <... futex resumed>) = 0 [pid 20773] <... futex resumed>) = 1 [pid 20772] <... futex resumed>) = 0 [pid 20771] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20770] <... futex resumed>) = 0 [pid 20769] exit_group(0 [pid 20776] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20775] pipe2( [pid 20774] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20773] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20772] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20771] <... futex resumed>) = ? [pid 20770] exit_group(0 [pid 20769] <... exit_group resumed>) = ? [pid 20776] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20775] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20774] <... futex resumed>) = 0 [pid 20773] <... futex resumed>) = ? [pid 20771] +++ exited with 0 +++ [pid 20770] <... exit_group resumed>) = ? [pid 20769] +++ exited with 0 +++ [pid 20776] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20775] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20774] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20773] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20769, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20770] +++ exited with 0 +++ [pid 20775] <... futex resumed>) = 1 [pid 20775] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20772] <... futex resumed>) = 0 [pid 20772] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20775] <... futex resumed>) = 0 [pid 20772] <... futex resumed>) = 1 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20770, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20775] dup(4) = 5 [pid 20775] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20772] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20775] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20772] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] <... restart_syscall resumed>) = 0 [pid 20772] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20775] <... futex resumed>) = 0 [pid 20772] <... futex resumed>) = 1 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20772] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... openat resumed>) = 3 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] <... openat resumed>) = 3 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3607] close(3 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] <... close resumed>) = 0 [pid 3606] close(3 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20777 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20778 ./strace-static-x86_64: Process 20778 attached [pid 20778] set_robust_list(0x555556ba76e0, 24 [pid 20775] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20778] <... set_robust_list resumed>) = 0 [pid 20778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20778] setpgid(0, 0) = 0 [pid 20778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20778] write(3, "1000", 4./strace-static-x86_64: Process 20777 attached ) = 4 [pid 20778] close(3 [pid 20777] set_robust_list(0x555556ba76e0, 24 [pid 20778] <... close resumed>) = 0 [pid 20778] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20777] <... set_robust_list resumed>) = 0 [pid 20776] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20778] <... futex resumed>) = 0 [pid 20777] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20776] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20778] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20777] <... prctl resumed>) = 0 [pid 20776] <... futex resumed>) = 1 [pid 20774] <... futex resumed>) = 0 [pid 20778] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20777] setpgid(0, 0 [pid 20776] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20774] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20778] <... mprotect resumed>) = 0 [pid 20777] <... setpgid resumed>) = 0 [pid 20776] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20774] <... futex resumed>) = 0 [pid 20778] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20776] write(5, NULL, 176 [pid 20775] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20774] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20777] <... openat resumed>) = 3 [pid 20776] <... write resumed>) = -1 EFAULT (Bad address) [pid 20775] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20778] <... clone resumed>, parent_tid=[20779], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20779 [pid 20777] write(3, "1000", 4 [pid 20776] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20775] <... futex resumed>) = 1 [pid 20772] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20779 attached [pid 20778] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20777] <... write resumed>) = 4 [pid 20776] <... futex resumed>) = 1 [pid 20775] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20774] <... futex resumed>) = 0 [pid 20772] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20779] set_robust_list(0x7f61a3ef39e0, 24 [pid 20778] <... futex resumed>) = 0 [pid 20777] close(3 [pid 20776] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20775] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20774] exit_group(0 [pid 20772] <... futex resumed>) = 0 [pid 20779] <... set_robust_list resumed>) = 0 [pid 20778] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20777] <... close resumed>) = 0 [pid 20774] <... exit_group resumed>) = ? [pid 20772] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20777] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20776] <... futex resumed>) = ? [pid 20775] write(5, NULL, 176 [pid 20777] <... futex resumed>) = 0 [pid 20776] +++ exited with 0 +++ [pid 20775] <... write resumed>) = -1 EFAULT (Bad address) [pid 20774] +++ exited with 0 +++ [pid 20779] mkdir("./file0", 0777 [pid 20777] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20775] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20774, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20779] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20777] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20775] <... futex resumed>) = 1 [pid 20772] <... futex resumed>) = 0 [pid 20779] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20777] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20775] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20772] exit_group(0 [pid 20779] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20777] <... mprotect resumed>) = 0 [pid 20772] <... exit_group resumed>) = ? [pid 20779] <... futex resumed>) = 1 [pid 20778] <... futex resumed>) = 0 [pid 20777] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20775] <... futex resumed>) = ? [pid 20779] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20778] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20779] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20777] <... clone resumed>, parent_tid=[20780], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20780 [pid 20779] pipe2( [pid 20777] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20779] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20777] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20779] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20778] <... futex resumed>) = 0 [pid 20777] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20775] +++ exited with 0 +++ [pid 20772] +++ exited with 0 +++ [pid 3601] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20780 attached [pid 20779] <... futex resumed>) = 0 [pid 20778] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20780] set_robust_list(0x7f61a3ef39e0, 24 [pid 20779] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20778] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20772, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3601] close(3 [pid 20780] <... set_robust_list resumed>) = 0 [pid 20778] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20780] mkdir("./file0", 0777 [pid 20779] <... futex resumed>) = 0 [pid 20778] <... futex resumed>) = 1 [pid 3601] <... close resumed>) = 0 [pid 20780] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20779] dup(4 [pid 20778] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20780] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20779] <... dup resumed>) = 5 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20780] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20779] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20781 attached [pid 20780] <... futex resumed>) = 1 [pid 20779] <... futex resumed>) = 1 [pid 20778] <... futex resumed>) = 0 [pid 20777] <... futex resumed>) = 0 [pid 3604] close(3 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20781 [pid 20781] set_robust_list(0x555556ba76e0, 24 [pid 20780] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20779] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20778] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20777] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 20781] <... set_robust_list resumed>) = 0 [pid 20780] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20779] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20778] <... futex resumed>) = 0 [pid 20777] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20781] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20780] pipe2( [pid 20779] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20778] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20777] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20781] <... prctl resumed>) = 0 [pid 20780] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20780] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20777] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20782 [pid 20780] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20782 attached [pid 20782] set_robust_list(0x555556ba76e0, 24 [pid 20777] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20780] <... futex resumed>) = 0 [pid 20777] <... futex resumed>) = 1 [pid 20780] dup(4 [pid 20777] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20780] <... dup resumed>) = 5 [pid 20780] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20777] <... futex resumed>) = 0 [pid 20782] <... set_robust_list resumed>) = 0 [pid 20780] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20777] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20782] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20780] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20782] <... prctl resumed>) = 0 [pid 20780] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20777] <... futex resumed>) = 0 [pid 20782] setpgid(0, 0) = 0 [pid 20777] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20782] write(3, "1000", 4) = 4 [pid 20782] close(3 [pid 20781] setpgid(0, 0 [pid 20779] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20781] <... setpgid resumed>) = 0 [pid 20779] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20779] <... futex resumed>) = 1 [pid 20782] <... close resumed>) = 0 [pid 20778] <... futex resumed>) = 0 [pid 20781] <... openat resumed>) = 3 [pid 20779] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20778] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20781] write(3, "1000", 4 [pid 20779] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20778] <... futex resumed>) = 0 [pid 20782] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20781] <... write resumed>) = 4 [pid 20780] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20779] write(5, NULL, 176 [pid 20778] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20782] <... futex resumed>) = 0 [pid 20781] close(3 [pid 20780] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20779] <... write resumed>) = -1 EFAULT (Bad address) [pid 20781] <... close resumed>) = 0 [pid 20779] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20782] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20781] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20780] <... futex resumed>) = 1 [pid 20779] <... futex resumed>) = 1 [pid 20778] <... futex resumed>) = 0 [pid 20777] <... futex resumed>) = 0 [pid 20782] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20781] <... futex resumed>) = 0 [pid 20780] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20779] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20778] exit_group(0 [pid 20777] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20782] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20781] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20780] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20779] <... futex resumed>) = ? [pid 20778] <... exit_group resumed>) = ? [pid 20777] <... futex resumed>) = 0 [pid 20782] <... mprotect resumed>) = 0 [pid 20781] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20780] write(5, NULL, 176 [pid 20779] +++ exited with 0 +++ [pid 20781] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20781] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20780] <... write resumed>) = -1 EFAULT (Bad address) [pid 20782] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20778] +++ exited with 0 +++ [pid 20777] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20780] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20777] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20778, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20781] <... clone resumed>, parent_tid=[20783], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20783 [pid 20780] <... futex resumed>) = 0 [pid 20777] exit_group(0 [pid 20782] <... clone resumed>, parent_tid=[20784], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20784 [pid 20781] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20777] <... exit_group resumed>) = ? [pid 20782] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20781] <... futex resumed>) = 0 [pid 20780] +++ exited with 0 +++ [pid 20781] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20777] +++ exited with 0 +++ ./strace-static-x86_64: Process 20783 attached [pid 20782] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20784 attached [pid 20782] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20777, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20783] set_robust_list(0x7f61a3ef39e0, 24 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20784] set_robust_list(0x7f61a3ef39e0, 24 [pid 20783] <... set_robust_list resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3606] <... openat resumed>) = 3 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 20783] mkdir("./file0", 0777 [pid 3606] close(3 [pid 20784] <... set_robust_list resumed>) = 0 [pid 20783] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] <... close resumed>) = 0 [pid 20784] mkdir("./file0", 0777 [pid 20783] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3607] <... openat resumed>) = 3 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20784] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20783] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20785 [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20784] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20783] <... futex resumed>) = 1 [pid 20784] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20783] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20781] <... futex resumed>) = 0 [pid 20784] <... futex resumed>) = 1 [pid 20782] <... futex resumed>) = 0 [pid 20781] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20786 [pid 20784] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20783] <... futex resumed>) = 0 [pid 20782] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20781] <... futex resumed>) = 1 [pid 20784] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20783] pipe2( [pid 20782] <... futex resumed>) = 0 [pid 20784] pipe2( [pid 20783] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20782] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20784] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20783] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20784] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20783] <... futex resumed>) = 0 [pid 20784] <... futex resumed>) = 1 [pid 20783] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20782] <... futex resumed>) = 0 [pid 20784] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20782] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20781] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20784] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20782] <... futex resumed>) = 0 [pid 20781] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 20786 attached ./strace-static-x86_64: Process 20785 attached [pid 20784] dup(4 [pid 20782] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20781] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20786] set_robust_list(0x555556ba76e0, 24 [pid 20785] set_robust_list(0x555556ba76e0, 24 [pid 20784] <... dup resumed>) = 5 [pid 20783] <... futex resumed>) = 0 [pid 20781] <... futex resumed>) = 1 [pid 20786] <... set_robust_list resumed>) = 0 [pid 20785] <... set_robust_list resumed>) = 0 [pid 20784] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20783] dup(4 [pid 20781] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20786] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20785] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20784] <... futex resumed>) = 1 [pid 20783] <... dup resumed>) = 5 [pid 20782] <... futex resumed>) = 0 [pid 20786] <... prctl resumed>) = 0 [pid 20785] <... prctl resumed>) = 0 [pid 20784] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20783] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20782] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20786] setpgid(0, 0 [pid 20785] setpgid(0, 0 [pid 20784] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20783] <... futex resumed>) = 1 [pid 20782] <... futex resumed>) = 0 [pid 20781] <... futex resumed>) = 0 [pid 20786] <... setpgid resumed>) = 0 [pid 20785] <... setpgid resumed>) = 0 [pid 20784] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20783] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20782] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20781] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20783] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20781] <... futex resumed>) = 0 [pid 20786] <... openat resumed>) = 3 [pid 20785] <... openat resumed>) = 3 [pid 20783] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20781] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20786] write(3, "1000", 4 [pid 20785] write(3, "1000", 4 [pid 20786] <... write resumed>) = 4 [pid 20785] <... write resumed>) = 4 [pid 20786] close(3 [pid 20785] close(3 [pid 20786] <... close resumed>) = 0 [pid 20785] <... close resumed>) = 0 [pid 20786] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20785] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20784] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20786] <... futex resumed>) = 0 [pid 20785] <... futex resumed>) = 0 [pid 20784] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20786] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20785] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20784] <... futex resumed>) = 1 [pid 20782] <... futex resumed>) = 0 [pid 20786] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20785] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20784] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20783] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20782] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20786] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20785] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20784] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20783] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20782] <... futex resumed>) = 0 [pid 20786] <... mprotect resumed>) = 0 [pid 20785] <... mprotect resumed>) = 0 [pid 20784] write(5, NULL, 176 [pid 20783] <... futex resumed>) = 1 [pid 20782] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20781] <... futex resumed>) = 0 [pid 20786] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20785] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20784] <... write resumed>) = -1 EFAULT (Bad address) [pid 20783] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20781] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20784] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20783] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20781] <... futex resumed>) = 0 [pid 20786] <... clone resumed>, parent_tid=[20787], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20787 [pid 20785] <... clone resumed>, parent_tid=[20788], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20788 [pid 20784] <... futex resumed>) = 1 [pid 20783] write(5, NULL, 176 [pid 20782] <... futex resumed>) = 0 [pid 20781] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20786] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20785] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20784] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20783] <... write resumed>) = -1 EFAULT (Bad address) [pid 20782] exit_group(0./strace-static-x86_64: Process 20788 attached ./strace-static-x86_64: Process 20787 attached [pid 20786] <... futex resumed>) = 0 [pid 20785] <... futex resumed>) = 0 [pid 20784] <... futex resumed>) = ? [pid 20783] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20782] <... exit_group resumed>) = ? [pid 20788] set_robust_list(0x7f61a3ef39e0, 24 [pid 20787] set_robust_list(0x7f61a3ef39e0, 24 [pid 20786] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20785] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20784] +++ exited with 0 +++ [pid 20783] <... futex resumed>) = 1 [pid 20781] <... futex resumed>) = 0 [pid 20788] <... set_robust_list resumed>) = 0 [pid 20787] <... set_robust_list resumed>) = 0 [pid 20783] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20782] +++ exited with 0 +++ [pid 20781] exit_group(0 [pid 20788] mkdir("./file0", 0777 [pid 20787] mkdir("./file0", 0777 [pid 20783] <... futex resumed>) = ? [pid 20781] <... exit_group resumed>) = ? [pid 20788] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20787] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20783] +++ exited with 0 +++ [pid 20788] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20787] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20781] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20782, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20788] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20787] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20788] <... futex resumed>) = 1 [pid 20785] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20785] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20781, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20788] pipe2( [pid 20787] <... futex resumed>) = 1 [pid 20786] <... futex resumed>) = 0 [pid 20785] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20788] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20786] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20785] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20788] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20787] pipe2( [pid 20786] <... futex resumed>) = 0 [pid 20785] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... restart_syscall resumed>) = 0 [pid 20788] <... futex resumed>) = 0 [pid 20787] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20786] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20785] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20788] dup(4 [pid 20787] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20786] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20785] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20788] <... dup resumed>) = 5 [pid 20787] <... futex resumed>) = 0 [pid 20786] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20785] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20788] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20787] dup(4 [pid 20786] <... futex resumed>) = 0 [pid 20785] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20788] <... futex resumed>) = 0 [pid 20787] <... dup resumed>) = 5 [pid 20786] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20785] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20788] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20787] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20786] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20785] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20789 [pid 3601] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20789 attached [pid 20787] <... futex resumed>) = 0 [pid 20786] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20785] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20789] set_robust_list(0x555556ba76e0, 24 [pid 20787] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20786] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20789] <... set_robust_list resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20789] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20789] <... prctl resumed>) = 0 [pid 20786] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20789] setpgid(0, 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20790 [pid 20789] <... setpgid resumed>) = 0 [pid 20789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20789] write(3, "1000", 4) = 4 [pid 20789] close(3./strace-static-x86_64: Process 20790 attached ) = 0 [pid 20790] set_robust_list(0x555556ba76e0, 24 [pid 20789] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20790] <... set_robust_list resumed>) = 0 [pid 20789] <... futex resumed>) = 0 [pid 20790] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20789] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20790] <... prctl resumed>) = 0 [pid 20789] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20790] setpgid(0, 0 [pid 20789] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20790] <... setpgid resumed>) = 0 [pid 20789] <... mprotect resumed>) = 0 [pid 20790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20789] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20790] <... openat resumed>) = 3 [pid 20790] write(3, "1000", 4 [pid 20789] <... clone resumed>, parent_tid=[20791], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20791 [pid 20790] <... write resumed>) = 4 [pid 20789] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20790] close(3 [pid 20789] <... futex resumed>) = 0 [pid 20790] <... close resumed>) = 0 [pid 20789] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20790] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20790] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20790] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20790] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20788] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 20792 attached ./strace-static-x86_64: Process 20791 attached [pid 20790] <... clone resumed>, parent_tid=[20792], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20792 [pid 20792] set_robust_list(0x7f61a3ef39e0, 24 [pid 20791] set_robust_list(0x7f61a3ef39e0, 24 [pid 20790] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20788] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20792] <... set_robust_list resumed>) = 0 [pid 20791] <... set_robust_list resumed>) = 0 [pid 20790] <... futex resumed>) = 0 [pid 20788] <... futex resumed>) = 1 [pid 20787] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20785] <... futex resumed>) = 0 [pid 20792] mkdir("./file0", 0777 [pid 20791] mkdir("./file0", 0777 [pid 20790] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20788] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20787] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20785] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20792] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20791] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20788] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20787] <... futex resumed>) = 1 [pid 20786] <... futex resumed>) = 0 [pid 20785] <... futex resumed>) = 0 [pid 20792] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20791] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20788] write(5, NULL, 176 [pid 20787] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20786] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20785] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20792] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20791] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20788] <... write resumed>) = -1 EFAULT (Bad address) [pid 20787] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20786] <... futex resumed>) = 0 [pid 20792] <... futex resumed>) = 1 [pid 20791] <... futex resumed>) = 1 [pid 20790] <... futex resumed>) = 0 [pid 20789] <... futex resumed>) = 0 [pid 20788] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20787] write(5, NULL, 176 [pid 20786] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20792] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20791] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20790] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20789] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20788] <... futex resumed>) = 1 [pid 20787] <... write resumed>) = -1 EFAULT (Bad address) [pid 20785] <... futex resumed>) = 0 [pid 20792] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20791] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20790] <... futex resumed>) = 0 [pid 20789] <... futex resumed>) = 0 [pid 20788] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20787] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20785] exit_group(0 [pid 20792] pipe2( [pid 20791] pipe2( [pid 20790] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20789] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20788] <... futex resumed>) = ? [pid 20787] <... futex resumed>) = 1 [pid 20786] <... futex resumed>) = 0 [pid 20785] <... exit_group resumed>) = ? [pid 20792] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20791] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20788] +++ exited with 0 +++ [pid 20787] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20786] exit_group(0 [pid 20792] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20791] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20787] <... futex resumed>) = ? [pid 20786] <... exit_group resumed>) = ? [pid 20785] +++ exited with 0 +++ [pid 20792] <... futex resumed>) = 1 [pid 20791] <... futex resumed>) = 1 [pid 20790] <... futex resumed>) = 0 [pid 20789] <... futex resumed>) = 0 [pid 20787] +++ exited with 0 +++ [pid 20786] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20785, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20792] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20791] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20790] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20789] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20786, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20792] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20791] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20790] <... futex resumed>) = 0 [pid 20789] <... futex resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20792] dup(4 [pid 20791] dup(4 [pid 20790] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20789] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20792] <... dup resumed>) = 5 [pid 20791] <... dup resumed>) = 5 [pid 20792] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20791] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20792] <... futex resumed>) = 1 [pid 20791] <... futex resumed>) = 1 [pid 20790] <... futex resumed>) = 0 [pid 20789] <... futex resumed>) = 0 [pid 20792] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20791] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20790] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20789] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20792] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20791] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20790] <... futex resumed>) = 0 [pid 20789] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20792] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20791] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20790] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20789] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... openat resumed>) = 3 [pid 3607] close(3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3607] <... close resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] close(3) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20793 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20794 ./strace-static-x86_64: Process 20793 attached ./strace-static-x86_64: Process 20794 attached [pid 20793] set_robust_list(0x555556ba76e0, 24 [pid 20794] set_robust_list(0x555556ba76e0, 24 [pid 20793] <... set_robust_list resumed>) = 0 [pid 20794] <... set_robust_list resumed>) = 0 [pid 20793] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20793] setpgid(0, 0) = 0 [pid 20793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20793] write(3, "1000", 4 [pid 20794] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20793] <... write resumed>) = 4 [pid 20794] <... prctl resumed>) = 0 [pid 20793] close(3 [pid 20794] setpgid(0, 0 [pid 20793] <... close resumed>) = 0 [pid 20794] <... setpgid resumed>) = 0 [pid 20793] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20793] <... futex resumed>) = 0 [pid 20792] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20794] write(3, "1000", 4 [pid 20793] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20792] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20791] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20794] <... write resumed>) = 4 [pid 20793] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20792] <... futex resumed>) = 1 [pid 20791] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20790] <... futex resumed>) = 0 [pid 20794] close(3 [pid 20793] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20792] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20791] <... futex resumed>) = 1 [pid 20790] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20789] <... futex resumed>) = 0 [pid 20794] <... close resumed>) = 0 [pid 20793] <... mprotect resumed>) = 0 [pid 20792] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20791] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20790] <... futex resumed>) = 0 [pid 20789] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20794] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20792] write(5, NULL, 176 [pid 20791] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20794] <... futex resumed>) = 0 [pid 20793] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20792] <... write resumed>) = -1 EFAULT (Bad address) [pid 20791] write(5, NULL, 176 [pid 20790] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20789] <... futex resumed>) = 0 [pid 20794] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20792] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20791] <... write resumed>) = -1 EFAULT (Bad address) [pid 20790] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20789] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20794] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20793] <... clone resumed>, parent_tid=[20795], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20795 [pid 20792] <... futex resumed>) = 0 [pid 20791] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20790] exit_group(0 [pid 20789] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20794] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20793] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20791] <... futex resumed>) = 0 [pid 20790] <... exit_group resumed>) = ? [pid 20789] exit_group(0 [pid 20794] <... mprotect resumed>) = 0 [pid 20793] <... futex resumed>) = 0 [pid 20792] +++ exited with 0 +++ [pid 20791] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20794] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20796], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20796 ./strace-static-x86_64: Process 20795 attached [pid 20794] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20795] set_robust_list(0x7f61a3ef39e0, 24 [pid 20794] <... futex resumed>) = 0 [pid 20795] <... set_robust_list resumed>) = 0 [pid 20794] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20791] <... futex resumed>) = ? [pid 20793] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20790] +++ exited with 0 +++ [pid 20789] <... exit_group resumed>) = ? [pid 20795] mkdir("./file0", 0777 [pid 20791] +++ exited with 0 +++ [pid 20795] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20795] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20795] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20795] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20796 attached [pid 20789] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20789, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20790, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20793] <... futex resumed>) = 0 [pid 20793] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20796] set_robust_list(0x7f61a3ef39e0, 24 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20795] <... futex resumed>) = 0 [pid 20793] <... futex resumed>) = 1 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20795] pipe2( [pid 20793] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 3601] <... openat resumed>) = 3 [pid 20795] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20795] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20796] <... set_robust_list resumed>) = 0 [pid 20795] <... futex resumed>) = 1 [pid 20793] <... futex resumed>) = 0 [pid 3604] close(3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20795] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20793] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 3601] close(3 [pid 20795] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20793] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... close resumed>) = 0 [pid 20795] dup(4 [pid 20793] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20796] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20795] <... dup resumed>) = 5 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20797 [pid 20796] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20796] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20794] <... futex resumed>) = 0 [pid 20796] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20795] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20794] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20796] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20795] <... futex resumed>) = 1 [pid 20794] <... futex resumed>) = 0 [pid 20796] pipe2( [pid 20795] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20794] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20793] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20798 ./strace-static-x86_64: Process 20797 attached [pid 20796] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20793] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20797] set_robust_list(0x555556ba76e0, 24 [pid 20796] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20797] <... set_robust_list resumed>) = 0 [pid 20796] <... futex resumed>) = 1 [pid 20795] <... futex resumed>) = 0 [pid 20794] <... futex resumed>) = 0 [pid 20793] <... futex resumed>) = 1 [pid 20797] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20796] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20795] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20794] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20793] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20798 attached [pid 20797] <... prctl resumed>) = 0 [pid 20796] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20794] <... futex resumed>) = 0 [pid 20797] setpgid(0, 0 [pid 20796] dup(4 [pid 20794] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20797] <... setpgid resumed>) = 0 [pid 20796] <... dup resumed>) = 5 [pid 20797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20796] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20797] <... openat resumed>) = 3 [pid 20796] <... futex resumed>) = 1 [pid 20794] <... futex resumed>) = 0 [pid 20797] write(3, "1000", 4 [pid 20796] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20794] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20797] <... write resumed>) = 4 [pid 20796] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20794] <... futex resumed>) = 0 [pid 20797] close(3 [pid 20796] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20794] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20797] <... close resumed>) = 0 [pid 20797] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20797] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20797] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20797] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20799], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20799 [pid 20797] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20797] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20799 attached [pid 20799] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20799] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20799] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20799] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20797] <... futex resumed>) = 0 [pid 20797] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20797] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20799] <... futex resumed>) = 1 [pid 20799] pipe2([3, 4], 0) = 0 [pid 20799] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20797] <... futex resumed>) = 0 [pid 20797] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20797] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20799] <... futex resumed>) = 1 [pid 20799] dup(4) = 5 [pid 20799] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20797] <... futex resumed>) = 0 [pid 20797] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20797] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20799] <... futex resumed>) = 1 [pid 20799] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20798] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20798] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20798] setpgid(0, 0) = 0 [pid 20798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20798] write(3, "1000", 4) = 4 [pid 20798] close(3) = 0 [pid 20798] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20798] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20798] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20798] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20795] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20795] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20793] <... futex resumed>) = 0 [pid 20795] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20793] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20798] <... clone resumed>, parent_tid=[20800], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20800 [pid 20795] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20793] <... futex resumed>) = 0 [pid 20798] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20795] write(5, NULL, 176 [pid 20793] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20798] <... futex resumed>) = 0 [pid 20795] <... write resumed>) = -1 EFAULT (Bad address) [pid 20798] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20795] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20793] <... futex resumed>) = 0 [pid 20795] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20793] exit_group(0 [pid 20795] <... futex resumed>) = ? [pid 20793] <... exit_group resumed>) = ? [pid 20795] +++ exited with 0 +++ [pid 20793] +++ exited with 0 +++ ./strace-static-x86_64: Process 20800 attached [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20793, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20796] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20800] set_robust_list(0x7f61a3ef39e0, 24 [pid 20796] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20800] <... set_robust_list resumed>) = 0 [pid 20796] <... futex resumed>) = 1 [pid 20794] <... futex resumed>) = 0 [pid 20800] mkdir("./file0", 0777 [pid 20799] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20796] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20794] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20800] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20799] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20796] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20794] <... futex resumed>) = 0 [pid 20800] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20799] <... futex resumed>) = 1 [pid 20797] <... futex resumed>) = 0 [pid 20796] write(5, NULL, 176 [pid 20794] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20800] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20799] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20797] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20796] <... write resumed>) = -1 EFAULT (Bad address) [pid 20800] <... futex resumed>) = 1 [pid 20799] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20798] <... futex resumed>) = 0 [pid 20797] <... futex resumed>) = 0 [pid 20796] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20800] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20799] write(5, NULL, 176 [pid 20798] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20797] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20796] <... futex resumed>) = 1 [pid 20794] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20800] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20799] <... write resumed>) = -1 EFAULT (Bad address) [pid 20798] <... futex resumed>) = 0 [pid 20796] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20794] exit_group(0 [pid 20800] pipe2( [pid 20799] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20798] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20796] <... futex resumed>) = ? [pid 20794] <... exit_group resumed>) = ? [pid 3607] <... openat resumed>) = 3 [pid 20800] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20799] <... futex resumed>) = 1 [pid 20797] <... futex resumed>) = 0 [pid 20796] +++ exited with 0 +++ [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20800] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20799] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20797] exit_group(0 [pid 20794] +++ exited with 0 +++ [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20800] <... futex resumed>) = 1 [pid 20799] <... futex resumed>) = ? [pid 20798] <... futex resumed>) = 0 [pid 20797] <... exit_group resumed>) = ? [pid 3607] close(3 [pid 20800] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20799] +++ exited with 0 +++ [pid 20798] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20797] +++ exited with 0 +++ [pid 3607] <... close resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20794, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20800] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20798] <... futex resumed>) = 0 [pid 20800] dup(4 [pid 20798] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20800] <... dup resumed>) = 5 [pid 20800] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20798] <... futex resumed>) = 0 [pid 20800] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20798] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20800] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20798] <... futex resumed>) = 0 [pid 20800] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20798] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 20801 attached ) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20797, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20801] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20801] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20801] setpgid(0, 0) = 0 [pid 20801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20801] write(3, "1000", 4) = 4 [pid 20801] close(3) = 0 [pid 20801] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20801 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20801] <... futex resumed>) = 0 [pid 20800] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] <... openat resumed>) = 3 [pid 20801] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20800] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20801] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20800] <... futex resumed>) = 1 [pid 20798] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20801] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20800] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20798] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] close(3 [pid 20801] <... mprotect resumed>) = 0 [pid 20800] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20798] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... close resumed>) = 0 [pid 20801] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20800] write(5, NULL, 176 [pid 20798] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20800] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] <... close resumed>) = 0 [pid 20801] <... clone resumed>, parent_tid=[20802], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20802 [pid 20800] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20801] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20800] <... futex resumed>) = 1 [pid 20798] <... futex resumed>) = 0 [pid 20801] <... futex resumed>) = 0 [pid 20800] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20798] exit_group(0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20801] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20800] <... futex resumed>) = ? [pid 20798] <... exit_group resumed>) = ? [pid 20800] +++ exited with 0 +++ [pid 20798] +++ exited with 0 +++ [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20803 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20804 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20798, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 20803 attached [pid 20803] set_robust_list(0x555556ba76e0, 24 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20803] <... set_robust_list resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20803] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 ./strace-static-x86_64: Process 20804 attached [pid 20803] <... prctl resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20804] set_robust_list(0x555556ba76e0, 24 [pid 20803] setpgid(0, 0 [pid 20804] <... set_robust_list resumed>) = 0 [pid 20803] <... setpgid resumed>) = 0 [pid 20804] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20804] <... prctl resumed>) = 0 [pid 20803] <... openat resumed>) = 3 [pid 20804] setpgid(0, 0 [pid 20803] write(3, "1000", 4 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20805 [pid 20804] <... setpgid resumed>) = 0 [pid 20803] <... write resumed>) = 4 [pid 20804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20803] close(3 [pid 20804] <... openat resumed>) = 3 [pid 20803] <... close resumed>) = 0 [pid 20804] write(3, "1000", 4 [pid 20803] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20804] <... write resumed>) = 4 [pid 20803] <... futex resumed>) = 0 [pid 20804] close(3 [pid 20803] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20804] <... close resumed>) = 0 [pid 20803] <... mmap resumed>) = 0x7f61a3ed3000 ./strace-static-x86_64: Process 20805 attached [pid 20804] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20803] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20804] <... futex resumed>) = 0 [pid 20803] <... mprotect resumed>) = 0 [pid 20805] set_robust_list(0x555556ba76e0, 24 [pid 20804] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20803] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20804] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20805] <... set_robust_list resumed>) = 0 [pid 20804] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20803] <... clone resumed>, parent_tid=[20806], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20806 [pid 20805] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20804] <... mprotect resumed>) = 0 [pid 20803] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20804] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20803] <... futex resumed>) = 0 [pid 20805] <... prctl resumed>) = 0 [pid 20803] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20804] <... clone resumed>, parent_tid=[20807], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20807 [pid 20805] setpgid(0, 0 [pid 20804] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20804] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20805] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 20806 attached [pid 20806] set_robust_list(0x7f61a3ef39e0, 24 [pid 20805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20806] <... set_robust_list resumed>) = 0 [pid 20806] mkdir("./file0", 0777./strace-static-x86_64: Process 20807 attached ) = -1 EEXIST (File exists) [pid 20807] set_robust_list(0x7f61a3ef39e0, 24 [pid 20805] <... openat resumed>) = 3 [pid 20807] <... set_robust_list resumed>) = 0 [pid 20806] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20807] mkdir("./file0", 0777 [pid 20806] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20805] write(3, "1000", 4) = 4 [pid 20805] close(3./strace-static-x86_64: Process 20802 attached [pid 20807] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20806] <... futex resumed>) = 1 [pid 20805] <... close resumed>) = 0 [pid 20803] <... futex resumed>) = 0 [pid 20807] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20806] pipe2( [pid 20805] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20803] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20807] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20806] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20803] <... futex resumed>) = 0 [pid 20802] set_robust_list(0x7f61a3ef39e0, 24 [pid 20807] <... futex resumed>) = 1 [pid 20806] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20804] <... futex resumed>) = 0 [pid 20803] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20807] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20806] <... futex resumed>) = 0 [pid 20805] <... futex resumed>) = 0 [pid 20804] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20803] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20802] <... set_robust_list resumed>) = 0 [pid 20807] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20806] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20805] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20804] <... futex resumed>) = 0 [pid 20803] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20807] pipe2( [pid 20806] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20805] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20804] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20803] <... futex resumed>) = 0 [pid 20802] mkdir("./file0", 0777 [pid 20807] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20806] dup(4 [pid 20805] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20803] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20807] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20806] <... dup resumed>) = 5 [pid 20805] <... mprotect resumed>) = 0 [pid 20802] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20807] <... futex resumed>) = 1 [pid 20806] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20804] <... futex resumed>) = 0 [pid 20807] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20806] <... futex resumed>) = 1 [pid 20805] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20804] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20803] <... futex resumed>) = 0 [pid 20802] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20807] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20806] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20804] <... futex resumed>) = 0 [pid 20803] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20807] dup(4 [pid 20806] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20804] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20803] <... futex resumed>) = 0 [pid 20807] <... dup resumed>) = 5 [pid 20806] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20803] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20802] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20807] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20804] <... futex resumed>) = 0 [pid 20807] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20804] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20807] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20805] <... clone resumed>, parent_tid=[20808], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20808 [pid 20804] <... futex resumed>) = 0 [pid 20807] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20804] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20805] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20808 attached ) = 0 [pid 20802] <... futex resumed>) = 1 [pid 20801] <... futex resumed>) = 0 [pid 20808] set_robust_list(0x7f61a3ef39e0, 24 [pid 20806] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20805] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20802] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20801] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20806] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20802] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20801] <... futex resumed>) = 0 [pid 20808] <... set_robust_list resumed>) = 0 [pid 20806] <... futex resumed>) = 1 [pid 20803] <... futex resumed>) = 0 [pid 20802] pipe2( [pid 20801] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20808] mkdir("./file0", 0777 [pid 20807] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20806] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20803] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20802] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20807] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20806] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20803] <... futex resumed>) = 0 [pid 20802] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20808] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20807] <... futex resumed>) = 1 [pid 20806] write(5, NULL, 176 [pid 20804] <... futex resumed>) = 0 [pid 20803] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20802] <... futex resumed>) = 1 [pid 20801] <... futex resumed>) = 0 [pid 20807] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20806] <... write resumed>) = -1 EFAULT (Bad address) [pid 20804] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20802] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20801] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20808] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20807] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20806] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20804] <... futex resumed>) = 0 [pid 20802] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20801] <... futex resumed>) = 0 [pid 20808] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20807] write(5, NULL, 176 [pid 20806] <... futex resumed>) = 1 [pid 20804] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20803] <... futex resumed>) = 0 [pid 20802] dup(4 [pid 20801] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20808] <... futex resumed>) = 1 [pid 20807] <... write resumed>) = -1 EFAULT (Bad address) [pid 20806] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20805] <... futex resumed>) = 0 [pid 20803] exit_group(0 [pid 20802] <... dup resumed>) = 5 [pid 20808] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20807] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20806] <... futex resumed>) = ? [pid 20805] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20803] <... exit_group resumed>) = ? [pid 20802] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20808] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20807] <... futex resumed>) = 1 [pid 20806] +++ exited with 0 +++ [pid 20805] <... futex resumed>) = 0 [pid 20804] <... futex resumed>) = 0 [pid 20802] <... futex resumed>) = 1 [pid 20808] pipe2( [pid 20807] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20805] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20804] exit_group(0 [pid 20803] +++ exited with 0 +++ [pid 20802] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20801] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20803, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20808] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20807] <... futex resumed>) = ? [pid 20804] <... exit_group resumed>) = ? [pid 20801] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20808] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20807] +++ exited with 0 +++ [pid 20808] <... futex resumed>) = 1 [pid 20805] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20808] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20805] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20804] +++ exited with 0 +++ [pid 20802] <... futex resumed>) = 0 [pid 20801] <... futex resumed>) = 1 [pid 3604] <... openat resumed>) = 3 [pid 20808] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20805] <... futex resumed>) = 0 [pid 20802] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20801] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20804, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20808] dup(4 [pid 20805] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20808] <... dup resumed>) = 5 [pid 3604] close(3 [pid 20808] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 20808] <... futex resumed>) = 1 [pid 20805] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20808] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20805] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20808] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20805] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20809 [pid 20808] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20805] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20810 ./strace-static-x86_64: Process 20810 attached [pid 20810] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20810] setpgid(0, 0) = 0 [pid 20810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20810] write(3, "1000", 4) = 4 [pid 20810] close(3) = 0 [pid 20810] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20810] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20810] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20810] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20811], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20811 [pid 20810] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20810] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20811 attached ./strace-static-x86_64: Process 20809 attached [pid 20811] set_robust_list(0x7f61a3ef39e0, 24 [pid 20809] set_robust_list(0x555556ba76e0, 24 [pid 20811] <... set_robust_list resumed>) = 0 [pid 20809] <... set_robust_list resumed>) = 0 [pid 20802] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20811] mkdir("./file0", 0777 [pid 20809] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20808] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20811] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20809] <... prctl resumed>) = 0 [pid 20808] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20802] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20809] setpgid(0, 0 [pid 20808] <... futex resumed>) = 1 [pid 20805] <... futex resumed>) = 0 [pid 20802] <... futex resumed>) = 1 [pid 20801] <... futex resumed>) = 0 [pid 20811] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20809] <... setpgid resumed>) = 0 [pid 20808] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20805] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20802] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20801] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20809] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20808] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20805] <... futex resumed>) = 0 [pid 20802] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20801] <... futex resumed>) = 0 [pid 20809] <... openat resumed>) = 3 [pid 20808] write(5, NULL, 176 [pid 20805] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20802] write(5, NULL, 176 [pid 20801] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20811] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20809] write(3, "1000", 4 [pid 20808] <... write resumed>) = -1 EFAULT (Bad address) [pid 20802] <... write resumed>) = -1 EFAULT (Bad address) [pid 20811] <... futex resumed>) = 1 [pid 20810] <... futex resumed>) = 0 [pid 20809] <... write resumed>) = 4 [pid 20808] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20802] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20811] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20810] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20809] close(3 [pid 20808] <... futex resumed>) = 1 [pid 20805] <... futex resumed>) = 0 [pid 20802] <... futex resumed>) = 1 [pid 20801] <... futex resumed>) = 0 [pid 20811] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20810] <... futex resumed>) = 0 [pid 20809] <... close resumed>) = 0 [pid 20808] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20805] exit_group(0 [pid 20802] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20801] exit_group(0 [pid 20811] pipe2( [pid 20810] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20809] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20808] <... futex resumed>) = ? [pid 20805] <... exit_group resumed>) = ? [pid 20802] <... futex resumed>) = ? [pid 20801] <... exit_group resumed>) = ? [pid 20811] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20809] <... futex resumed>) = 0 [pid 20808] +++ exited with 0 +++ [pid 20811] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20809] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20805] +++ exited with 0 +++ [pid 20811] <... futex resumed>) = 1 [pid 20810] <... futex resumed>) = 0 [pid 20809] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20802] +++ exited with 0 +++ [pid 20801] +++ exited with 0 +++ [pid 20811] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20810] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20809] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20811] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20810] <... futex resumed>) = 0 [pid 20809] <... mprotect resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20805, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20801, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20811] dup(4 [pid 20810] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20809] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20811] <... dup resumed>) = 5 [pid 3607] <... openat resumed>) = 3 [pid 20811] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20809] <... clone resumed>, parent_tid=[20812], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20812 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3601] <... openat resumed>) = 3 [pid 20811] <... futex resumed>) = 1 [pid 20810] <... futex resumed>) = 0 [pid 20809] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20811] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20810] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20809] <... futex resumed>) = 0 [pid 3607] close(3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20812 attached [pid 20811] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20810] <... futex resumed>) = 0 [pid 20809] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] <... close resumed>) = 0 [pid 3601] close(3 [pid 20812] set_robust_list(0x7f61a3ef39e0, 24 [pid 20811] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20810] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... close resumed>) = 0 [pid 20812] <... set_robust_list resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20812] mkdir("./file0", 0777 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20813 [pid 20812] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20814 [pid 20812] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20812] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20809] <... futex resumed>) = 0 [pid 20812] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20809] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20812] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20809] <... futex resumed>) = 0 [pid 20812] pipe2( [pid 20809] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20812] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20812] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20811] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20812] <... futex resumed>) = 1 [pid 20811] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20809] <... futex resumed>) = 0 [pid 20812] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20811] <... futex resumed>) = 1 [pid 20810] <... futex resumed>) = 0 [pid 20809] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20812] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20811] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20810] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20809] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20813 attached ./strace-static-x86_64: Process 20814 attached [pid 20812] dup(4 [pid 20811] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20810] <... futex resumed>) = 0 [pid 20809] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20813] set_robust_list(0x555556ba76e0, 24 [pid 20812] <... dup resumed>) = 5 [pid 20811] write(5, NULL, 176 [pid 20810] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20812] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20809] <... futex resumed>) = 0 [pid 20812] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20809] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20812] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20809] <... futex resumed>) = 0 [pid 20812] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20809] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20814] set_robust_list(0x555556ba76e0, 24 [pid 20813] <... set_robust_list resumed>) = 0 [pid 20811] <... write resumed>) = -1 EFAULT (Bad address) [pid 20814] <... set_robust_list resumed>) = 0 [pid 20813] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20811] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20814] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20813] <... prctl resumed>) = 0 [pid 20811] <... futex resumed>) = 1 [pid 20810] <... futex resumed>) = 0 [pid 20814] <... prctl resumed>) = 0 [pid 20813] setpgid(0, 0 [pid 20812] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20811] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20810] exit_group(0 [pid 20814] setpgid(0, 0 [pid 20813] <... setpgid resumed>) = 0 [pid 20812] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20811] <... futex resumed>) = ? [pid 20810] <... exit_group resumed>) = ? [pid 20814] <... setpgid resumed>) = 0 [pid 20813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20812] <... futex resumed>) = 1 [pid 20811] +++ exited with 0 +++ [pid 20809] <... futex resumed>) = 0 [pid 20814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20813] <... openat resumed>) = 3 [pid 20812] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20810] +++ exited with 0 +++ [pid 20809] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20812] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20809] <... futex resumed>) = 0 [pid 20814] <... openat resumed>) = 3 [pid 20812] write(5, NULL, 176 [pid 20809] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20814] write(3, "1000", 4 [pid 20813] write(3, "1000", 4 [pid 20812] <... write resumed>) = -1 EFAULT (Bad address) [pid 20814] <... write resumed>) = 4 [pid 20813] <... write resumed>) = 4 [pid 20812] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20810, si_uid=0, si_status=0, si_utime=2, si_stime=1} --- [pid 20814] close(3 [pid 20813] close(3 [pid 20812] <... futex resumed>) = 1 [pid 20809] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20814] <... close resumed>) = 0 [pid 20813] <... close resumed>) = 0 [pid 20812] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20809] exit_group(0 [pid 3606] <... openat resumed>) = 3 [pid 20814] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20813] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20812] <... futex resumed>) = ? [pid 20809] <... exit_group resumed>) = ? [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20814] <... futex resumed>) = 0 [pid 20813] <... futex resumed>) = 0 [pid 20812] +++ exited with 0 +++ [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20814] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20813] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] close(3 [pid 20814] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20813] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20809] +++ exited with 0 +++ [pid 3606] <... close resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20809, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20814] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20813] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... openat resumed>) = 3 [pid 20814] <... mprotect resumed>) = 0 [pid 20813] <... mprotect resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20814] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20813] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20815 [pid 3604] close(3 [pid 20814] <... clone resumed>, parent_tid=[20816], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20816 [pid 20813] <... clone resumed>, parent_tid=[20817], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20817 [pid 3604] <... close resumed>) = 0 [pid 20814] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20813] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20814] <... futex resumed>) = 0 [pid 20813] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20818 ./strace-static-x86_64: Process 20816 attached [pid 20816] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20814] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20813] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20816] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 20817 attached [pid 20816] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 20818 attached ./strace-static-x86_64: Process 20815 attached [pid 20817] set_robust_list(0x7f61a3ef39e0, 24 [pid 20816] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20818] set_robust_list(0x555556ba76e0, 24 [pid 20817] <... set_robust_list resumed>) = 0 [pid 20816] <... futex resumed>) = 1 [pid 20815] set_robust_list(0x555556ba76e0, 24 [pid 20814] <... futex resumed>) = 0 [pid 20818] <... set_robust_list resumed>) = 0 [pid 20817] mkdir("./file0", 0777 [pid 20816] pipe2( [pid 20815] <... set_robust_list resumed>) = 0 [pid 20814] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20818] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20817] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20816] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20815] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20814] <... futex resumed>) = 0 [pid 20818] <... prctl resumed>) = 0 [pid 20817] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20816] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20815] <... prctl resumed>) = 0 [pid 20814] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20818] setpgid(0, 0 [pid 20817] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20816] <... futex resumed>) = 0 [pid 20815] setpgid(0, 0 [pid 20814] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20818] <... setpgid resumed>) = 0 [pid 20817] <... futex resumed>) = 1 [pid 20816] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20815] <... setpgid resumed>) = 0 [pid 20814] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20813] <... futex resumed>) = 0 [pid 20818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20817] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20816] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20814] <... futex resumed>) = 0 [pid 20813] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20818] <... openat resumed>) = 3 [pid 20817] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20816] dup(4 [pid 20815] <... openat resumed>) = 3 [pid 20814] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20813] <... futex resumed>) = 0 [pid 20818] write(3, "1000", 4 [pid 20817] pipe2( [pid 20816] <... dup resumed>) = 5 [pid 20815] write(3, "1000", 4 [pid 20813] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20818] <... write resumed>) = 4 [pid 20817] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20816] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20815] <... write resumed>) = 4 [pid 20818] close(3 [pid 20817] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20816] <... futex resumed>) = 1 [pid 20815] close(3 [pid 20814] <... futex resumed>) = 0 [pid 20818] <... close resumed>) = 0 [pid 20817] <... futex resumed>) = 1 [pid 20816] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20815] <... close resumed>) = 0 [pid 20814] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20813] <... futex resumed>) = 0 [pid 20818] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20817] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20816] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20815] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20814] <... futex resumed>) = 0 [pid 20813] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20818] <... futex resumed>) = 0 [pid 20817] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20816] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20815] <... futex resumed>) = 0 [pid 20814] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20813] <... futex resumed>) = 0 [pid 20818] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20817] dup(4 [pid 20815] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20813] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20818] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20817] <... dup resumed>) = 5 [pid 20815] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20818] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20817] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20815] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20818] <... mprotect resumed>) = 0 [pid 20817] <... futex resumed>) = 1 [pid 20815] <... mprotect resumed>) = 0 [pid 20813] <... futex resumed>) = 0 [pid 20818] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20817] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20815] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20813] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20817] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20813] <... futex resumed>) = 0 [pid 20818] <... clone resumed>, parent_tid=[20819], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20819 [pid 20817] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20815] <... clone resumed>, parent_tid=[20820], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20820 [pid 20813] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20818] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20815] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20818] <... futex resumed>) = 0 [pid 20815] <... futex resumed>) = 0 [pid 20818] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20815] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20820 attached ./strace-static-x86_64: Process 20819 attached [pid 20816] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20820] set_robust_list(0x7f61a3ef39e0, 24 [pid 20819] set_robust_list(0x7f61a3ef39e0, 24 [pid 20816] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20820] <... set_robust_list resumed>) = 0 [pid 20819] <... set_robust_list resumed>) = 0 [pid 20816] <... futex resumed>) = 1 [pid 20814] <... futex resumed>) = 0 [pid 20820] mkdir("./file0", 0777 [pid 20819] mkdir("./file0", 0777 [pid 20816] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20814] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20820] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20819] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20816] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20814] <... futex resumed>) = 0 [pid 20820] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20819] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20816] write(5, NULL, 176 [pid 20814] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20820] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20819] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20817] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20816] <... write resumed>) = -1 EFAULT (Bad address) [pid 20820] <... futex resumed>) = 1 [pid 20819] <... futex resumed>) = 1 [pid 20818] <... futex resumed>) = 0 [pid 20817] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20816] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20815] <... futex resumed>) = 0 [pid 20820] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20819] pipe2( [pid 20818] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20817] <... futex resumed>) = 1 [pid 20816] <... futex resumed>) = 1 [pid 20815] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20814] <... futex resumed>) = 0 [pid 20813] <... futex resumed>) = 0 [pid 20820] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20819] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20818] <... futex resumed>) = 0 [pid 20817] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20816] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20815] <... futex resumed>) = 0 [pid 20814] exit_group(0 [pid 20813] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20820] pipe2( [pid 20819] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20818] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20817] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20816] <... futex resumed>) = ? [pid 20815] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20814] <... exit_group resumed>) = ? [pid 20813] <... futex resumed>) = 0 [pid 20820] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20819] <... futex resumed>) = 0 [pid 20818] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20817] write(5, NULL, 176 [pid 20816] +++ exited with 0 +++ [pid 20813] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20818] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20817] <... write resumed>) = -1 EFAULT (Bad address) [pid 20818] <... futex resumed>) = 0 [pid 20817] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20814] +++ exited with 0 +++ [pid 20820] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20819] dup(4 [pid 20818] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20817] <... futex resumed>) = 1 [pid 20813] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20814, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20820] <... futex resumed>) = 1 [pid 20819] <... dup resumed>) = 5 [pid 20817] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20815] <... futex resumed>) = 0 [pid 20813] exit_group(0 [pid 20820] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20819] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20817] <... futex resumed>) = ? [pid 20815] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20813] <... exit_group resumed>) = ? [pid 20820] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20819] <... futex resumed>) = 1 [pid 20818] <... futex resumed>) = 0 [pid 20817] +++ exited with 0 +++ [pid 20815] <... futex resumed>) = 0 [pid 20820] dup(4 [pid 20819] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20818] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20815] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20813] +++ exited with 0 +++ [pid 20820] <... dup resumed>) = 5 [pid 20819] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20818] <... futex resumed>) = 0 [pid 20818] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20820] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20819] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20813, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20820] <... futex resumed>) = 1 [pid 20815] <... futex resumed>) = 0 [pid 20815] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20815] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20820] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3601] <... openat resumed>) = 3 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 3601] close(3 [pid 3607] <... close resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20821 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20822 ./strace-static-x86_64: Process 20822 attached [pid 20822] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20822] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20822] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 20821 attached [pid 20822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20821] set_robust_list(0x555556ba76e0, 24 [pid 20822] <... openat resumed>) = 3 [pid 20821] <... set_robust_list resumed>) = 0 [pid 20822] write(3, "1000", 4 [pid 20821] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20822] <... write resumed>) = 4 [pid 20821] <... prctl resumed>) = 0 [pid 20821] setpgid(0, 0 [pid 20822] close(3) = 0 [pid 20821] <... setpgid resumed>) = 0 [pid 20820] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20819] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20822] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20820] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20819] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20822] <... futex resumed>) = 0 [pid 20820] <... futex resumed>) = 1 [pid 20819] <... futex resumed>) = 1 [pid 20818] <... futex resumed>) = 0 [pid 20815] <... futex resumed>) = 0 [pid 20821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20822] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20820] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20819] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20818] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20815] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20822] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20820] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20819] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20818] <... futex resumed>) = 0 [pid 20815] <... futex resumed>) = 0 [pid 20822] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20820] write(5, NULL, 176 [pid 20819] write(5, NULL, 176 [pid 20818] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20815] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20822] <... mprotect resumed>) = 0 [pid 20820] <... write resumed>) = -1 EFAULT (Bad address) [pid 20819] <... write resumed>) = -1 EFAULT (Bad address) [pid 20822] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20820] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20819] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20823 attached [pid 20821] <... openat resumed>) = 3 [pid 20820] <... futex resumed>) = 1 [pid 20819] <... futex resumed>) = 1 [pid 20818] <... futex resumed>) = 0 [pid 20815] <... futex resumed>) = 0 [pid 20822] <... clone resumed>, parent_tid=[20823], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20823 [pid 20821] write(3, "1000", 4 [pid 20820] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20819] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20818] exit_group(0 [pid 20815] exit_group(0 [pid 20823] set_robust_list(0x7f61a3ef39e0, 24 [pid 20822] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20821] <... write resumed>) = 4 [pid 20820] <... futex resumed>) = ? [pid 20819] <... futex resumed>) = ? [pid 20818] <... exit_group resumed>) = ? [pid 20815] <... exit_group resumed>) = ? [pid 20822] <... futex resumed>) = 0 [pid 20821] close(3 [pid 20820] +++ exited with 0 +++ [pid 20819] +++ exited with 0 +++ [pid 20818] +++ exited with 0 +++ [pid 20823] <... set_robust_list resumed>) = 0 [pid 20815] +++ exited with 0 +++ [pid 20822] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20821] <... close resumed>) = 0 [pid 20821] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20815, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20818, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20821] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20821] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] <... openat resumed>) = 3 [pid 3604] <... openat resumed>) = 3 [pid 20823] mkdir("./file0", 0777 [pid 20821] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20823] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20821] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20823] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20821] <... mprotect resumed>) = 0 [pid 3606] close(3 [pid 3604] close(3 [pid 20823] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20821] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... close resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20824 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20824 attached [pid 20824] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20821] <... clone resumed>, parent_tid=[20825], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20825 [pid 20824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20824] setpgid(0, 0) = 0 [pid 20824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20824] write(3, "1000", 4) = 4 [pid 20824] close(3./strace-static-x86_64: Process 20826 attached ) = 0 [pid 20824] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20826] set_robust_list(0x555556ba76e0, 24 [pid 20824] <... futex resumed>) = 0 [pid 20826] <... set_robust_list resumed>) = 0 [pid 20824] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20826] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20824] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20821] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20826 [pid 20826] <... prctl resumed>) = 0 [pid 20824] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20821] <... futex resumed>) = 0 [pid 20826] setpgid(0, 0 [pid 20824] <... mprotect resumed>) = 0 [pid 20821] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20826] <... setpgid resumed>) = 0 [pid 20824] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20823] <... futex resumed>) = 1 [pid 20822] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20825 attached [pid 20826] <... openat resumed>) = 3 [pid 20824] <... clone resumed>, parent_tid=[20827], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20827 [pid 20822] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20826] write(3, "1000", 4 [pid 20824] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20823] pipe2( [pid 20822] <... futex resumed>) = 0 [pid 20826] <... write resumed>) = 4 [pid 20824] <... futex resumed>) = 0 [pid 20823] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20822] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20825] set_robust_list(0x7f61a3ef39e0, 24 [pid 20826] close(3 [pid 20825] <... set_robust_list resumed>) = 0 [pid 20824] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20823] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20822] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 20827 attached [pid 20826] <... close resumed>) = 0 [pid 20825] mkdir("./file0", 0777 [pid 20823] <... futex resumed>) = 0 [pid 20822] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20826] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20825] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20827] set_robust_list(0x7f61a3ef39e0, 24 [pid 20823] dup(4 [pid 20822] <... futex resumed>) = 0 [pid 20827] <... set_robust_list resumed>) = 0 [pid 20826] <... futex resumed>) = 0 [pid 20825] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20823] <... dup resumed>) = 5 [pid 20822] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20827] mkdir("./file0", 0777 [pid 20826] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20825] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20823] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20822] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20827] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20826] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20825] <... futex resumed>) = 1 [pid 20823] <... futex resumed>) = 0 [pid 20822] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20821] <... futex resumed>) = 0 [pid 20827] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20826] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20825] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20823] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20822] <... futex resumed>) = 0 [pid 20821] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20827] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20826] <... mprotect resumed>) = 0 [pid 20825] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20822] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20821] <... futex resumed>) = 0 [pid 20826] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20821] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20826] <... clone resumed>, parent_tid=[20828], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20828 [pid 20826] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20826] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20825] pipe2([3, 4], 0) = 0 ./strace-static-x86_64: Process 20828 attached [pid 20825] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20828] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20828] mkdir("./file0", 0777 [pid 20827] <... futex resumed>) = 1 [pid 20825] <... futex resumed>) = 1 [pid 20824] <... futex resumed>) = 0 [pid 20821] <... futex resumed>) = 0 [pid 20828] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20827] pipe2( [pid 20825] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20824] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20821] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20828] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20827] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20825] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20824] <... futex resumed>) = 0 [pid 20821] <... futex resumed>) = 0 [pid 20828] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20824] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20828] <... futex resumed>) = 1 [pid 20826] <... futex resumed>) = 0 [pid 20828] pipe2( [pid 20826] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20828] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20826] <... futex resumed>) = 0 [pid 20828] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20826] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20828] <... futex resumed>) = 0 [pid 20826] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20828] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20826] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20828] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20826] <... futex resumed>) = 0 [pid 20828] dup(4 [pid 20826] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20828] <... dup resumed>) = 5 [pid 20828] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20826] <... futex resumed>) = 0 [pid 20828] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20826] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20828] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20826] <... futex resumed>) = 0 [pid 20828] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20826] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20821] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20827] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20825] dup(4 [pid 20827] <... futex resumed>) = 1 [pid 20825] <... dup resumed>) = 5 [pid 20823] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20827] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20825] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20824] <... futex resumed>) = 0 [pid 20823] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20825] <... futex resumed>) = 1 [pid 20824] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20823] <... futex resumed>) = 1 [pid 20822] <... futex resumed>) = 0 [pid 20821] <... futex resumed>) = 0 [pid 20827] <... futex resumed>) = 0 [pid 20825] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20824] <... futex resumed>) = 1 [pid 20823] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20822] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20821] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20827] dup(4 [pid 20825] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20824] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20823] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20821] <... futex resumed>) = 0 [pid 20825] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20823] write(5, NULL, 176 [pid 20821] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20823] <... write resumed>) = -1 EFAULT (Bad address) [pid 20827] <... dup resumed>) = 5 [pid 20823] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20822] <... futex resumed>) = 0 [pid 20827] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20823] <... futex resumed>) = 0 [pid 20822] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20827] <... futex resumed>) = 1 [pid 20824] <... futex resumed>) = 0 [pid 20823] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20822] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20827] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20824] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20822] exit_group(0 [pid 20828] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20827] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20824] <... futex resumed>) = 0 [pid 20823] <... futex resumed>) = ? [pid 20822] <... exit_group resumed>) = ? [pid 20828] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20827] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20824] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20826] <... futex resumed>) = 0 [pid 20825] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20823] +++ exited with 0 +++ [pid 20822] +++ exited with 0 +++ [pid 20828] <... futex resumed>) = 1 [pid 20827] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20826] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20825] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20822, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20828] write(5, NULL, 176 [pid 20827] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20826] <... futex resumed>) = 0 [pid 20825] <... futex resumed>) = 1 [pid 20821] <... futex resumed>) = 0 [pid 20828] <... write resumed>) = -1 EFAULT (Bad address) [pid 20827] <... futex resumed>) = 1 [pid 20826] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20825] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20824] <... futex resumed>) = 0 [pid 20821] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20828] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20827] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20826] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20825] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20824] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20821] <... futex resumed>) = 0 [pid 20828] <... futex resumed>) = 0 [pid 20827] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20826] exit_group(0 [pid 20825] write(5, NULL, 176 [pid 20824] <... futex resumed>) = 0 [pid 20821] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20827] write(5, NULL, 176 [pid 20826] <... exit_group resumed>) = ? [pid 20825] <... write resumed>) = -1 EFAULT (Bad address) [pid 20824] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20828] +++ exited with 0 +++ [pid 20827] <... write resumed>) = -1 EFAULT (Bad address) [pid 20825] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20826] +++ exited with 0 +++ [pid 20825] <... futex resumed>) = 1 [pid 20821] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20827] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20825] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20821] exit_group(0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20826, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3601] <... openat resumed>) = 3 [pid 20827] <... futex resumed>) = 1 [pid 20825] <... futex resumed>) = ? [pid 20824] <... futex resumed>) = 0 [pid 20821] <... exit_group resumed>) = ? [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20827] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20825] +++ exited with 0 +++ [pid 20824] exit_group(0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20827] <... futex resumed>) = ? [pid 20824] <... exit_group resumed>) = ? [pid 3601] close(3 [pid 20827] +++ exited with 0 +++ [pid 20824] +++ exited with 0 +++ [pid 20821] +++ exited with 0 +++ [pid 3606] <... restart_syscall resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20821, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20824, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 ./strace-static-x86_64: Process 20829 attached [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20829 [pid 3607] <... openat resumed>) = 3 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... restart_syscall resumed>) = 0 [pid 20829] set_robust_list(0x555556ba76e0, 24 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] close(3 [pid 20829] <... set_robust_list resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20830 ./strace-static-x86_64: Process 20830 attached [pid 20830] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20830] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20830] setpgid(0, 0) = 0 [pid 20830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20830] write(3, "1000", 4) = 4 [pid 20830] close(3) = 0 [pid 20830] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20830] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20830] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20830] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20831], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20831 [pid 20830] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20830] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20831 attached [pid 20831] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 3607] close(3 [pid 20829] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3607] <... close resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20829] setpgid(0, 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20832 [pid 20829] <... setpgid resumed>) = 0 [pid 3604] close(3 [pid 20829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20829] <... openat resumed>) = 3 [pid 20829] write(3, "1000", 4 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20833 [pid 20829] <... write resumed>) = 4 [pid 20829] close(3 [pid 20831] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20831] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20829] <... close resumed>) = 0 [pid 20829] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20832 attached ) = 0 ./strace-static-x86_64: Process 20833 attached [pid 20831] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20832] set_robust_list(0x555556ba76e0, 24 [pid 20830] <... futex resumed>) = 0 [pid 20830] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20830] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20831] <... futex resumed>) = 1 [pid 20831] pipe2([3, 4], 0) = 0 [pid 20831] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20830] <... futex resumed>) = 0 [pid 20832] <... set_robust_list resumed>) = 0 [pid 20831] dup(4 [pid 20830] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20829] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20831] <... dup resumed>) = 5 [pid 20830] <... futex resumed>) = 0 [pid 20829] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20832] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20831] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20830] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20829] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20832] <... prctl resumed>) = 0 [pid 20831] <... futex resumed>) = 0 [pid 20830] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20829] <... mprotect resumed>) = 0 [pid 20832] setpgid(0, 0 [pid 20831] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20830] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20829] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20834 attached [pid 20833] set_robust_list(0x555556ba76e0, 24 [pid 20832] <... setpgid resumed>) = 0 [pid 20831] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20830] <... futex resumed>) = 0 [pid 20834] set_robust_list(0x7f61a3ef39e0, 24 [pid 20833] <... set_robust_list resumed>) = 0 [pid 20832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20831] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20830] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20829] <... clone resumed>, parent_tid=[20834], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20834 [pid 20834] <... set_robust_list resumed>) = 0 [pid 20833] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20832] <... openat resumed>) = 3 [pid 20829] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20834] mkdir("./file0", 0777 [pid 20832] write(3, "1000", 4 [pid 20829] <... futex resumed>) = 0 [pid 20834] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20833] <... prctl resumed>) = 0 [pid 20832] <... write resumed>) = 4 [pid 20829] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20834] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20833] setpgid(0, 0 [pid 20832] close(3 [pid 20834] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20833] <... setpgid resumed>) = 0 [pid 20832] <... close resumed>) = 0 [pid 20831] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20834] <... futex resumed>) = 1 [pid 20833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20832] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20831] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20829] <... futex resumed>) = 0 [pid 20834] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20833] <... openat resumed>) = 3 [pid 20832] <... futex resumed>) = 0 [pid 20831] <... futex resumed>) = 1 [pid 20830] <... futex resumed>) = 0 [pid 20829] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20834] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20833] write(3, "1000", 4 [pid 20832] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20831] write(5, NULL, 176 [pid 20830] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20829] <... futex resumed>) = 0 [pid 20834] pipe2( [pid 20833] <... write resumed>) = 4 [pid 20832] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20831] <... write resumed>) = -1 EFAULT (Bad address) [pid 20830] <... futex resumed>) = 0 [pid 20829] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20834] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20833] close(3 [pid 20832] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20831] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20830] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20834] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20833] <... close resumed>) = 0 [pid 20832] <... mprotect resumed>) = 0 [pid 20831] <... futex resumed>) = 0 [pid 20830] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20834] <... futex resumed>) = 1 [pid 20833] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20832] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20831] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20830] exit_group(0 [pid 20829] <... futex resumed>) = 0 [pid 20834] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20833] <... futex resumed>) = 0 [pid 20831] <... futex resumed>) = ? [pid 20830] <... exit_group resumed>) = ? [pid 20829] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20834] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20833] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20832] <... clone resumed>, parent_tid=[20835], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20835 [pid 20831] +++ exited with 0 +++ [pid 20829] <... futex resumed>) = 0 [pid 20834] dup(4 [pid 20832] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20829] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20834] <... dup resumed>) = 5 [pid 20832] <... futex resumed>) = 0 [pid 20830] +++ exited with 0 +++ [pid 20834] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20833] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20832] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20830, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 20835 attached [pid 20834] <... futex resumed>) = 1 [pid 20833] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20829] <... futex resumed>) = 0 [pid 20834] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20833] <... mprotect resumed>) = 0 [pid 20829] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20834] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20829] <... futex resumed>) = 0 [pid 20833] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20834] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20829] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 20836 attached [pid 20835] set_robust_list(0x7f61a3ef39e0, 24 [pid 20833] <... clone resumed>, parent_tid=[20836], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20836 [pid 3606] <... openat resumed>) = 3 [pid 20836] set_robust_list(0x7f61a3ef39e0, 24 [pid 20835] <... set_robust_list resumed>) = 0 [pid 20833] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20836] <... set_robust_list resumed>) = 0 [pid 20835] mkdir("./file0", 0777 [pid 20833] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20836] mkdir("./file0", 0777 [pid 20835] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20833] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20836] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20835] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3606] close(3 [pid 20836] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20835] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20836] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20835] <... futex resumed>) = 1 [pid 20832] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20836] <... futex resumed>) = 1 [pid 20835] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20833] <... futex resumed>) = 0 [pid 20832] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20836] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20835] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20833] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20832] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20837 [pid 20836] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20835] pipe2( [pid 20834] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20833] <... futex resumed>) = 0 [pid 20832] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20836] pipe2( [pid 20835] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20834] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20833] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20836] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20835] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20834] <... futex resumed>) = 1 [pid 20829] <... futex resumed>) = 0 [pid 20836] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20835] <... futex resumed>) = 1 [pid 20834] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20832] <... futex resumed>) = 0 [pid 20829] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20837 attached [pid 20836] <... futex resumed>) = 1 [pid 20835] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20834] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20833] <... futex resumed>) = 0 [pid 20832] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20829] <... futex resumed>) = 0 [pid 20837] set_robust_list(0x555556ba76e0, 24 [pid 20836] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20835] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20834] write(5, NULL, 176 [pid 20832] <... futex resumed>) = 0 [pid 20829] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20837] <... set_robust_list resumed>) = 0 [pid 20834] <... write resumed>) = -1 EFAULT (Bad address) [pid 20832] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20837] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20834] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20837] <... prctl resumed>) = 0 [pid 20834] <... futex resumed>) = 1 [pid 20829] <... futex resumed>) = 0 [pid 20837] setpgid(0, 0 [pid 20834] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20829] exit_group(0 [pid 20837] <... setpgid resumed>) = 0 [pid 20834] <... futex resumed>) = ? [pid 20829] <... exit_group resumed>) = ? [pid 20837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20836] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20835] dup(4 [pid 20834] +++ exited with 0 +++ [pid 20833] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20837] <... openat resumed>) = 3 [pid 20836] dup(4 [pid 20835] <... dup resumed>) = 5 [pid 20833] <... futex resumed>) = 0 [pid 20829] +++ exited with 0 +++ [pid 20837] write(3, "1000", 4 [pid 20836] <... dup resumed>) = 5 [pid 20835] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20833] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20829, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20837] <... write resumed>) = 4 [pid 20836] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20835] <... futex resumed>) = 1 [pid 20833] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20832] <... futex resumed>) = 0 [pid 20837] close(3 [pid 20836] <... futex resumed>) = 0 [pid 20835] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20833] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20832] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20837] <... close resumed>) = 0 [pid 20836] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20835] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20833] <... futex resumed>) = 0 [pid 20832] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20837] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20835] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20833] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20832] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 20837] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20837] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20837] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] close(3 [pid 20837] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] <... close resumed>) = 0 [pid 20837] <... mprotect resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20837] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20838 [pid 20837] <... clone resumed>, parent_tid=[20839], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20839 [pid 20837] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20837] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20838 attached [pid 20838] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20838] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20838] setpgid(0, 0) = 0 [pid 20838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20838] write(3, "1000", 4) = 4 [pid 20838] close(3) = 0 [pid 20838] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20838] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20838] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20838] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20840], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20840 [pid 20838] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20838] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20840 attached [pid 20840] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20840] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20840] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20840] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20839 attached ) = 1 [pid 20838] <... futex resumed>) = 0 [pid 20839] set_robust_list(0x7f61a3ef39e0, 24 [pid 20838] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20839] <... set_robust_list resumed>) = 0 [pid 20839] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20839] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20839] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20838] <... futex resumed>) = 0 [pid 20837] <... futex resumed>) = 0 [pid 20835] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20839] pipe2( [pid 20838] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20837] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20835] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20840] pipe2( [pid 20839] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20837] <... futex resumed>) = 0 [pid 20836] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20835] <... futex resumed>) = 1 [pid 20832] <... futex resumed>) = 0 [pid 20839] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20837] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20836] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20835] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20832] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20840] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20839] <... futex resumed>) = 0 [pid 20837] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20836] <... futex resumed>) = 1 [pid 20835] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20833] <... futex resumed>) = 0 [pid 20832] <... futex resumed>) = 0 [pid 20839] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20837] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20836] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20835] write(5, NULL, 176 [pid 20833] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20832] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20840] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20839] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20837] <... futex resumed>) = 0 [pid 20836] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20835] <... write resumed>) = -1 EFAULT (Bad address) [pid 20833] <... futex resumed>) = 0 [pid 20840] <... futex resumed>) = 1 [pid 20839] dup(4 [pid 20838] <... futex resumed>) = 0 [pid 20837] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20836] write(5, NULL, 176 [pid 20835] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20833] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20840] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20839] <... dup resumed>) = 5 [pid 20838] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20836] <... write resumed>) = -1 EFAULT (Bad address) [pid 20835] <... futex resumed>) = 1 [pid 20832] <... futex resumed>) = 0 [pid 20840] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20839] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20838] <... futex resumed>) = 0 [pid 20836] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20835] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20832] exit_group(0 [pid 20840] dup(4 [pid 20839] <... futex resumed>) = 1 [pid 20838] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20837] <... futex resumed>) = 0 [pid 20836] <... futex resumed>) = 1 [pid 20835] <... futex resumed>) = ? [pid 20833] <... futex resumed>) = 0 [pid 20832] <... exit_group resumed>) = ? [pid 20840] <... dup resumed>) = 5 [pid 20839] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20837] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20836] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20835] +++ exited with 0 +++ [pid 20833] exit_group(0 [pid 20832] +++ exited with 0 +++ [pid 20840] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20839] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20837] <... futex resumed>) = 0 [pid 20836] <... futex resumed>) = ? [pid 20833] <... exit_group resumed>) = ? [pid 20840] <... futex resumed>) = 1 [pid 20839] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20838] <... futex resumed>) = 0 [pid 20837] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20836] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20832, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20840] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20838] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20833] +++ exited with 0 +++ [pid 20840] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20839] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20838] <... futex resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20840] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20839] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20838] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20833, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3607] <... restart_syscall resumed>) = 0 [pid 20839] <... futex resumed>) = 1 [pid 20837] <... futex resumed>) = 0 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20839] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20837] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20839] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20837] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] <... restart_syscall resumed>) = 0 [pid 20839] write(5, NULL, 176 [pid 20837] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... openat resumed>) = 3 [pid 20839] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20839] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20839] <... futex resumed>) = 1 [pid 20837] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20839] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20837] exit_group(0 [pid 3607] <... close resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20839] <... futex resumed>) = ? [pid 20837] <... exit_group resumed>) = ? [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20839] +++ exited with 0 +++ [pid 20837] +++ exited with 0 +++ [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20841 ./strace-static-x86_64: Process 20841 attached [pid 20841] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20841] setpgid(0, 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20837, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20841] <... setpgid resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] close(3 [pid 20840] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] <... openat resumed>) = 3 [pid 20840] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... close resumed>) = 0 [pid 20840] <... futex resumed>) = 1 [pid 20838] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20840] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20838] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 20841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20838] <... futex resumed>) = 0 [pid 20840] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20838] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... close resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20842 [pid 20840] write(5, NULL, 176 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20841] <... openat resumed>) = 3 [pid 20840] <... write resumed>) = -1 EFAULT (Bad address) [pid 20841] write(3, "1000", 4) = 4 [pid 20841] close(3 [pid 20840] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20841] <... close resumed>) = 0 [pid 20840] <... futex resumed>) = 1 [pid 20838] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20843 attached ./strace-static-x86_64: Process 20842 attached [pid 20840] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20838] exit_group(0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20843 [pid 20841] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20842] set_robust_list(0x555556ba76e0, 24 [pid 20841] <... futex resumed>) = 0 [pid 20840] <... futex resumed>) = ? [pid 20838] <... exit_group resumed>) = ? [pid 20842] <... set_robust_list resumed>) = 0 [pid 20841] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20840] +++ exited with 0 +++ [pid 20842] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20841] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20842] <... prctl resumed>) = 0 [pid 20841] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20838] +++ exited with 0 +++ [pid 20843] set_robust_list(0x555556ba76e0, 24 [pid 20842] setpgid(0, 0 [pid 20841] <... mprotect resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20838, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20843] <... set_robust_list resumed>) = 0 [pid 20842] <... setpgid resumed>) = 0 [pid 20841] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20843] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3601] <... restart_syscall resumed>) = 0 [pid 20843] <... prctl resumed>) = 0 [pid 20842] <... openat resumed>) = 3 [pid 20841] <... clone resumed>, parent_tid=[20844], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20844 [pid 20843] setpgid(0, 0 [pid 20842] write(3, "1000", 4 [pid 20841] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20843] <... setpgid resumed>) = 0 [pid 20842] <... write resumed>) = 4 [pid 20841] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20842] close(3 [pid 20841] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] <... openat resumed>) = 3 [pid 20843] <... openat resumed>) = 3 [pid 20842] <... close resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20843] write(3, "1000", 4 [pid 20842] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20843] <... write resumed>) = 4 [pid 20842] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20843] close(3 [pid 20842] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] <... close resumed>) = 0 [pid 20843] <... close resumed>) = 0 [pid 20842] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20843] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20842] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20843] <... futex resumed>) = 0 [pid 20842] <... mprotect resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20845 [pid 20843] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20842] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20843] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20843] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20842] <... clone resumed>, parent_tid=[20846], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20846 [pid 20843] <... mprotect resumed>) = 0 [pid 20842] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20843] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20842] <... futex resumed>) = 0 [pid 20842] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20845 attached ./strace-static-x86_64: Process 20844 attached [pid 20843] <... clone resumed>, parent_tid=[20847], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20847 [pid 20845] set_robust_list(0x555556ba76e0, 24 [pid 20844] set_robust_list(0x7f61a3ef39e0, 24 [pid 20843] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20845] <... set_robust_list resumed>) = 0 [pid 20844] <... set_robust_list resumed>) = 0 [pid 20843] <... futex resumed>) = 0 [pid 20845] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20844] mkdir("./file0", 0777 [pid 20843] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20845] <... prctl resumed>) = 0 [pid 20845] setpgid(0, 0 [pid 20844] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20845] <... setpgid resumed>) = 0 [pid 20844] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 20847 attached ./strace-static-x86_64: Process 20846 attached [pid 20845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20844] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20847] set_robust_list(0x7f61a3ef39e0, 24 [pid 20846] set_robust_list(0x7f61a3ef39e0, 24 [pid 20845] <... openat resumed>) = 3 [pid 20844] <... futex resumed>) = 1 [pid 20841] <... futex resumed>) = 0 [pid 20847] <... set_robust_list resumed>) = 0 [pid 20845] write(3, "1000", 4 [pid 20846] <... set_robust_list resumed>) = 0 [pid 20844] pipe2( [pid 20841] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20847] mkdir("./file0", 0777 [pid 20846] mkdir("./file0", 0777 [pid 20845] <... write resumed>) = 4 [pid 20844] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20841] <... futex resumed>) = 0 [pid 20847] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20846] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20845] close(3 [pid 20844] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20841] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20847] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20846] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20845] <... close resumed>) = 0 [pid 20844] <... futex resumed>) = 0 [pid 20841] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20847] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20846] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20845] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20844] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20841] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20847] <... futex resumed>) = 1 [pid 20846] <... futex resumed>) = 1 [pid 20845] <... futex resumed>) = 0 [pid 20844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20843] <... futex resumed>) = 0 [pid 20842] <... futex resumed>) = 0 [pid 20841] <... futex resumed>) = 0 [pid 20847] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20846] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20845] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20844] dup(4 [pid 20843] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20842] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20841] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20847] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20846] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20845] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20844] <... dup resumed>) = 5 [pid 20843] <... futex resumed>) = 0 [pid 20842] <... futex resumed>) = 0 [pid 20847] pipe2( [pid 20845] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20843] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20842] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20847] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20845] <... mprotect resumed>) = 0 [pid 20847] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20845] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20847] <... futex resumed>) = 1 [pid 20843] <... futex resumed>) = 0 [pid 20847] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20845] <... clone resumed>, parent_tid=[20848], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20848 [pid 20843] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20847] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20845] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20843] <... futex resumed>) = 0 [pid 20847] dup(4 [pid 20845] <... futex resumed>) = 0 [pid 20843] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20847] <... dup resumed>) = 5 [pid 20845] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20847] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20843] <... futex resumed>) = 0 [pid 20847] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20846] pipe2( [pid 20844] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20843] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20847] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20846] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20844] <... futex resumed>) = 1 [pid 20843] <... futex resumed>) = 0 [pid 20841] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20848 attached [pid 20847] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20846] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20844] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20843] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20841] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20846] <... futex resumed>) = 1 [pid 20844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20842] <... futex resumed>) = 0 [pid 20841] <... futex resumed>) = 0 [pid 20848] set_robust_list(0x7f61a3ef39e0, 24 [pid 20846] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20842] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20841] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20842] <... futex resumed>) = 0 [pid 20848] <... set_robust_list resumed>) = 0 [pid 20846] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20844] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20842] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20848] mkdir("./file0", 0777 [pid 20846] dup(4 [pid 20848] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20846] <... dup resumed>) = 5 [pid 20848] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20846] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20848] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20846] <... futex resumed>) = 1 [pid 20842] <... futex resumed>) = 0 [pid 20848] <... futex resumed>) = 1 [pid 20847] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20845] <... futex resumed>) = 0 [pid 20842] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20847] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20845] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20842] <... futex resumed>) = 0 [pid 20848] pipe2( [pid 20847] <... futex resumed>) = 1 [pid 20846] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20845] <... futex resumed>) = 0 [pid 20844] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20843] <... futex resumed>) = 0 [pid 20842] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20847] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20845] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20844] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20843] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20847] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20844] <... futex resumed>) = 1 [pid 20843] <... futex resumed>) = 0 [pid 20841] <... futex resumed>) = 0 [pid 20847] write(5, NULL, 176 [pid 20844] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20843] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20841] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20847] <... write resumed>) = -1 EFAULT (Bad address) [pid 20844] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20841] <... futex resumed>) = 0 [pid 20847] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20844] write(5, NULL, 176 [pid 20841] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20847] <... futex resumed>) = 1 [pid 20844] <... write resumed>) = -1 EFAULT (Bad address) [pid 20843] <... futex resumed>) = 0 [pid 20847] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20844] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20843] exit_group(0 [pid 20847] <... futex resumed>) = ? [pid 20844] <... futex resumed>) = 1 [pid 20843] <... exit_group resumed>) = ? [pid 20841] <... futex resumed>) = 0 [pid 20847] +++ exited with 0 +++ [pid 20844] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20843] +++ exited with 0 +++ [pid 20841] exit_group(0 [pid 20844] <... futex resumed>) = ? [pid 20841] <... exit_group resumed>) = ? [pid 20844] +++ exited with 0 +++ [pid 20841] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20843, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20841, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3606] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 20848] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 3606] <... openat resumed>) = 3 [pid 3607] <... close resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20848] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20848] <... futex resumed>) = 1 [pid 20845] <... futex resumed>) = 0 [pid 3606] close(3 [pid 20846] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20845] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20849 [pid 20848] dup(4 [pid 20845] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20848] <... dup resumed>) = 5 [pid 20846] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20845] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20849 attached [pid 20849] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20848] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20846] <... futex resumed>) = 1 [pid 20842] <... futex resumed>) = 0 [pid 20848] <... futex resumed>) = 1 [pid 20845] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20850 [pid 20845] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20842] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20848] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20846] write(5, NULL, 176 [pid 20845] <... futex resumed>) = 0 [pid 20842] <... futex resumed>) = 0 [pid 20845] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20842] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20846] <... write resumed>) = -1 EFAULT (Bad address) [pid 20849] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20846] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20849] <... prctl resumed>) = 0 [pid 20846] <... futex resumed>) = 1 [pid 20842] <... futex resumed>) = 0 [pid 20849] setpgid(0, 0 [pid 20846] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20842] exit_group(0 [pid 20849] <... setpgid resumed>) = 0 [pid 20846] <... futex resumed>) = ? [pid 20842] <... exit_group resumed>) = ? [pid 20849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 ./strace-static-x86_64: Process 20850 attached [pid 20849] write(3, "1000", 4 [pid 20850] set_robust_list(0x555556ba76e0, 24 [pid 20849] <... write resumed>) = 4 [pid 20846] +++ exited with 0 +++ [pid 20842] +++ exited with 0 +++ [pid 20850] <... set_robust_list resumed>) = 0 [pid 20849] close(3 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20842, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20850] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20849] <... close resumed>) = 0 [pid 20850] <... prctl resumed>) = 0 [pid 20849] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20850] setpgid(0, 0 [pid 20849] <... futex resumed>) = 0 [pid 20850] <... setpgid resumed>) = 0 [pid 20849] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20849] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20850] <... openat resumed>) = 3 [pid 20849] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20850] write(3, "1000", 4 [pid 20849] <... mprotect resumed>) = 0 [pid 20850] <... write resumed>) = 4 [pid 20849] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20850] close(3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20850] <... close resumed>) = 0 [pid 20849] <... clone resumed>, parent_tid=[20851], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20851 [pid 20850] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20849] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 20850] <... futex resumed>) = 0 [pid 20849] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20850] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20849] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20851 attached [pid 20850] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3604] close(3 [pid 20850] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] <... close resumed>) = 0 [pid 20850] <... mprotect resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20850] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20852], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20852 [pid 20850] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20850] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20848] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20853 [pid 20848] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20851] set_robust_list(0x7f61a3ef39e0, 24 [pid 20848] <... futex resumed>) = 1 [pid 20845] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20853 attached ./strace-static-x86_64: Process 20852 attached [pid 20851] <... set_robust_list resumed>) = 0 [pid 20848] write(5, NULL, 176 [pid 20845] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20853] set_robust_list(0x555556ba76e0, 24 [pid 20852] set_robust_list(0x7f61a3ef39e0, 24 [pid 20851] mkdir("./file0", 0777 [pid 20848] <... write resumed>) = -1 EFAULT (Bad address) [pid 20845] <... futex resumed>) = 0 [pid 20853] <... set_robust_list resumed>) = 0 [pid 20852] <... set_robust_list resumed>) = 0 [pid 20851] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20848] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20845] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20853] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20852] mkdir("./file0", 0777 [pid 20851] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20848] <... futex resumed>) = 0 [pid 20845] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20853] <... prctl resumed>) = 0 [pid 20852] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20851] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20848] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20845] exit_group(0 [pid 20853] setpgid(0, 0 [pid 20852] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20851] <... futex resumed>) = 1 [pid 20849] <... futex resumed>) = 0 [pid 20848] <... futex resumed>) = ? [pid 20845] <... exit_group resumed>) = ? [pid 20853] <... setpgid resumed>) = 0 [pid 20852] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20851] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20849] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20848] +++ exited with 0 +++ [pid 20853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20852] <... futex resumed>) = 1 [pid 20851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20850] <... futex resumed>) = 0 [pid 20849] <... futex resumed>) = 0 [pid 20845] +++ exited with 0 +++ [pid 20853] <... openat resumed>) = 3 [pid 20852] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20851] pipe2( [pid 20850] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20849] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20853] write(3, "1000", 4 [pid 20852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20851] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20850] <... futex resumed>) = 0 [pid 20853] <... write resumed>) = 4 [pid 20852] pipe2( [pid 20851] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20850] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20845, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20853] close(3 [pid 20852] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20851] <... futex resumed>) = 1 [pid 20849] <... futex resumed>) = 0 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20853] <... close resumed>) = 0 [pid 20852] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20851] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20849] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20853] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20852] <... futex resumed>) = 1 [pid 20851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20850] <... futex resumed>) = 0 [pid 20849] <... futex resumed>) = 0 [pid 20853] <... futex resumed>) = 0 [pid 20852] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20853] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20853] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20853] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20854], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20854 [pid 20853] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20853] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20851] dup(4 [pid 20850] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20849] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20852] <... futex resumed>) = 0 [pid 20851] <... dup resumed>) = 5 [pid 20850] <... futex resumed>) = 1 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20852] dup(4 [pid 20851] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20850] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20852] <... dup resumed>) = 5 [pid 20851] <... futex resumed>) = 1 [pid 20849] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20852] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20851] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20849] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20852] <... futex resumed>) = 1 [pid 20851] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20850] <... futex resumed>) = 0 [pid 20849] <... futex resumed>) = 0 [pid 20852] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20851] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20850] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20849] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20850] <... futex resumed>) = 0 [pid 20852] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20850] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20854 attached [pid 20854] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20855 [pid 20854] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20851] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20854] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20852] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20851] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20854] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20852] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20851] <... futex resumed>) = 1 [pid 20849] <... futex resumed>) = 0 [pid 20854] <... futex resumed>) = 1 [pid 20853] <... futex resumed>) = 0 [pid 20852] <... futex resumed>) = 1 [pid 20851] write(5, NULL, 176 [pid 20850] <... futex resumed>) = 0 [pid 20849] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20854] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20853] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20852] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20851] <... write resumed>) = -1 EFAULT (Bad address) [pid 20850] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20849] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20855 attached [pid 20854] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20853] <... futex resumed>) = 0 [pid 20852] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20851] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20850] <... futex resumed>) = 0 [pid 20849] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20855] set_robust_list(0x555556ba76e0, 24 [pid 20854] pipe2( [pid 20853] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20852] write(5, NULL, 176 [pid 20851] <... futex resumed>) = 0 [pid 20850] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20849] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20855] <... set_robust_list resumed>) = 0 [pid 20854] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20852] <... write resumed>) = -1 EFAULT (Bad address) [pid 20851] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20849] exit_group(0 [pid 20855] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20854] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20852] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20851] <... futex resumed>) = ? [pid 20849] <... exit_group resumed>) = ? [pid 20855] <... prctl resumed>) = 0 [pid 20854] <... futex resumed>) = 1 [pid 20853] <... futex resumed>) = 0 [pid 20852] <... futex resumed>) = 1 [pid 20851] +++ exited with 0 +++ [pid 20850] <... futex resumed>) = 0 [pid 20855] setpgid(0, 0 [pid 20854] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20853] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20852] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20850] exit_group(0 [pid 20849] +++ exited with 0 +++ [pid 20855] <... setpgid resumed>) = 0 [pid 20854] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20853] <... futex resumed>) = 0 [pid 20852] <... futex resumed>) = ? [pid 20850] <... exit_group resumed>) = ? [pid 20855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20854] dup(4 [pid 20853] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20852] +++ exited with 0 +++ [pid 20850] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20849, si_uid=0, si_status=0, si_utime=2, si_stime=0} --- [pid 20855] <... openat resumed>) = 3 [pid 20854] <... dup resumed>) = 5 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20850, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20855] write(3, "1000", 4 [pid 20854] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20855] <... write resumed>) = 4 [pid 20854] <... futex resumed>) = 1 [pid 20853] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20855] close(3 [pid 20854] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20853] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20855] <... close resumed>) = 0 [pid 20854] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20853] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20855] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20854] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20853] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 20855] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20855] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... openat resumed>) = 3 [pid 20855] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20855] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20856 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20855] <... mprotect resumed>) = 0 [pid 3606] close(3 [pid 20855] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 20857 attached ./strace-static-x86_64: Process 20858 attached ./strace-static-x86_64: Process 20856 attached [pid 20855] <... clone resumed>, parent_tid=[20857], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20857 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20858 [pid 20855] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20854] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20854] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20853] <... futex resumed>) = 0 [pid 20854] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20853] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20854] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20853] <... futex resumed>) = 0 [pid 20854] write(5, NULL, 176 [pid 20853] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20855] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20854] <... write resumed>) = -1 EFAULT (Bad address) [pid 20854] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20853] <... futex resumed>) = 0 [pid 20854] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20853] exit_group(0 [pid 20857] set_robust_list(0x7f61a3ef39e0, 24 [pid 20854] <... futex resumed>) = ? [pid 20853] <... exit_group resumed>) = ? [pid 20857] <... set_robust_list resumed>) = 0 [pid 20854] +++ exited with 0 +++ [pid 20853] +++ exited with 0 +++ [pid 20857] mkdir("./file0", 0777 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20853, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20857] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20856] set_robust_list(0x555556ba76e0, 24 [pid 3604] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 20857] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20856] <... set_robust_list resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20857] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20856] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3604] <... openat resumed>) = 3 [pid 20857] <... futex resumed>) = 1 [pid 20856] <... prctl resumed>) = 0 [pid 20855] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20857] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20856] setpgid(0, 0 [pid 20855] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20857] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20856] <... setpgid resumed>) = 0 [pid 20855] <... futex resumed>) = 0 [pid 3604] close(3 [pid 20857] pipe2( [pid 20856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20855] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... close resumed>) = 0 [pid 20857] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20857] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20856] <... openat resumed>) = 3 [pid 20858] set_robust_list(0x555556ba76e0, 24 [pid 20857] <... futex resumed>) = 1 [pid 20856] write(3, "1000", 4 [pid 20855] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20859 [pid 20858] <... set_robust_list resumed>) = 0 [pid 20857] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20856] <... write resumed>) = 4 [pid 20855] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20857] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20856] close(3 [pid 20855] <... futex resumed>) = 0 [pid 20858] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 20859 attached [pid 20857] dup(4 [pid 20856] <... close resumed>) = 0 [pid 20855] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20859] set_robust_list(0x555556ba76e0, 24 [pid 20858] <... prctl resumed>) = 0 [pid 20857] <... dup resumed>) = 5 [pid 20856] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20859] <... set_robust_list resumed>) = 0 [pid 20857] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20858] setpgid(0, 0 [pid 20859] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20857] <... futex resumed>) = 1 [pid 20856] <... futex resumed>) = 0 [pid 20855] <... futex resumed>) = 0 [pid 20859] <... prctl resumed>) = 0 [pid 20858] <... setpgid resumed>) = 0 [pid 20857] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20856] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20855] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20859] setpgid(0, 0 [pid 20858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20857] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20856] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20855] <... futex resumed>) = 0 [pid 20859] <... setpgid resumed>) = 0 [pid 20857] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20856] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20855] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20858] <... openat resumed>) = 3 [pid 20859] <... openat resumed>) = 3 [pid 20859] write(3, "1000", 4) = 4 [pid 20858] write(3, "1000", 4 [pid 20856] <... mprotect resumed>) = 0 [pid 20858] <... write resumed>) = 4 [pid 20856] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20858] close(3) = 0 [pid 20856] <... clone resumed>, parent_tid=[20860], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20860 [pid 20858] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20856] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20858] <... futex resumed>) = 0 [pid 20856] <... futex resumed>) = 0 [pid 20858] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20856] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20858] <... mmap resumed>) = 0x7f61a3ed3000 ./strace-static-x86_64: Process 20860 attached [pid 20859] close(3 [pid 20858] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20860] set_robust_list(0x7f61a3ef39e0, 24 [pid 20859] <... close resumed>) = 0 [pid 20860] <... set_robust_list resumed>) = 0 [pid 20859] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20860] mkdir("./file0", 0777 [pid 20859] <... futex resumed>) = 0 [pid 20860] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20859] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20860] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20859] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20860] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20859] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20860] <... futex resumed>) = 1 [pid 20859] <... mprotect resumed>) = 0 [pid 20858] <... mprotect resumed>) = 0 [pid 20856] <... futex resumed>) = 0 [pid 20860] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20859] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20858] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20857] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20856] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20860] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20857] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20856] <... futex resumed>) = 0 [pid 20860] pipe2( [pid 20859] <... clone resumed>, parent_tid=[20861], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20861 [pid 20858] <... clone resumed>, parent_tid=[20862], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20862 [pid 20857] <... futex resumed>) = 1 [pid 20856] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20855] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20862 attached ./strace-static-x86_64: Process 20861 attached [pid 20860] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20859] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20858] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20857] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20855] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20862] set_robust_list(0x7f61a3ef39e0, 24 [pid 20861] set_robust_list(0x7f61a3ef39e0, 24 [pid 20860] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20859] <... futex resumed>) = 0 [pid 20858] <... futex resumed>) = 0 [pid 20857] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20855] <... futex resumed>) = 0 [pid 20860] <... futex resumed>) = 1 [pid 20859] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20858] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20857] write(5, NULL, 176 [pid 20856] <... futex resumed>) = 0 [pid 20855] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20860] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20857] <... write resumed>) = -1 EFAULT (Bad address) [pid 20856] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20861] <... set_robust_list resumed>) = 0 [pid 20860] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20857] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20856] <... futex resumed>) = 0 [pid 20861] mkdir("./file0", 0777 [pid 20860] dup(4 [pid 20857] <... futex resumed>) = 1 [pid 20856] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20855] <... futex resumed>) = 0 [pid 20861] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20860] <... dup resumed>) = 5 [pid 20857] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20855] exit_group(0 [pid 20861] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20860] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20857] <... futex resumed>) = ? [pid 20855] <... exit_group resumed>) = ? [pid 20862] <... set_robust_list resumed>) = 0 [pid 20861] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20860] <... futex resumed>) = 1 [pid 20857] +++ exited with 0 +++ [pid 20856] <... futex resumed>) = 0 [pid 20855] +++ exited with 0 +++ [pid 20862] mkdir("./file0", 0777 [pid 20861] <... futex resumed>) = 1 [pid 20860] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20859] <... futex resumed>) = 0 [pid 20856] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20855, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20862] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20861] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20860] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20859] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20856] <... futex resumed>) = 0 [pid 20862] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20861] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20860] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20859] <... futex resumed>) = 0 [pid 20856] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20859] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20862] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20862] <... futex resumed>) = 1 [pid 20858] <... futex resumed>) = 0 [pid 20862] pipe2( [pid 20858] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20862] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20858] <... futex resumed>) = 0 [pid 20862] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20858] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20862] <... futex resumed>) = 0 [pid 20858] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20862] dup(4 [pid 20858] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20862] <... dup resumed>) = 5 [pid 20858] <... futex resumed>) = 0 [pid 20862] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20858] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20862] <... futex resumed>) = 0 [pid 20858] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20862] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20858] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20862] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20858] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20862] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20861] pipe2( [pid 20858] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] close(3 [pid 20861] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20861] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20861] <... futex resumed>) = 1 [pid 20859] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20861] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20859] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20861] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20861] dup(4 [pid 20859] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20863 attached [pid 20861] <... dup resumed>) = 5 [pid 20860] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20859] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20863 [pid 20863] set_robust_list(0x555556ba76e0, 24 [pid 20860] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20863] <... set_robust_list resumed>) = 0 [pid 20861] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20860] <... futex resumed>) = 1 [pid 20863] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20861] <... futex resumed>) = 1 [pid 20860] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20859] <... futex resumed>) = 0 [pid 20856] <... futex resumed>) = 0 [pid 20863] <... prctl resumed>) = 0 [pid 20861] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20859] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20856] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20863] setpgid(0, 0 [pid 20860] <... futex resumed>) = 0 [pid 20859] <... futex resumed>) = 0 [pid 20856] <... futex resumed>) = 1 [pid 20863] <... setpgid resumed>) = 0 [pid 20860] write(5, NULL, 176 [pid 20859] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20856] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20860] <... write resumed>) = -1 EFAULT (Bad address) [pid 20863] <... openat resumed>) = 3 [pid 20860] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20863] write(3, "1000", 4 [pid 20860] <... futex resumed>) = 1 [pid 20856] <... futex resumed>) = 0 [pid 20863] <... write resumed>) = 4 [pid 20862] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20860] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20856] exit_group(0 [pid 20863] close(3 [pid 20862] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20860] <... futex resumed>) = ? [pid 20856] <... exit_group resumed>) = ? [pid 20861] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20863] <... close resumed>) = 0 [pid 20860] +++ exited with 0 +++ [pid 20863] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20863] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20856] +++ exited with 0 +++ [pid 20858] <... futex resumed>) = 0 [pid 20862] <... futex resumed>) = 1 [pid 20861] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20863] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20862] write(5, NULL, 176 [pid 20858] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20856, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- [pid 20863] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20862] <... write resumed>) = -1 EFAULT (Bad address) [pid 20861] <... futex resumed>) = 1 [pid 20859] <... futex resumed>) = 0 [pid 20858] <... futex resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20863] <... mprotect resumed>) = 0 [pid 20862] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20861] write(5, NULL, 176 [pid 20859] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20858] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... restart_syscall resumed>) = 0 [pid 20863] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20862] <... futex resumed>) = 0 [pid 20861] <... write resumed>) = -1 EFAULT (Bad address) [pid 20859] <... futex resumed>) = 0 [pid 20858] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 20864 attached [pid 20862] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20861] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20859] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20858] exit_group(0 [pid 20863] <... clone resumed>, parent_tid=[20864], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20864 [pid 20862] <... futex resumed>) = ? [pid 20861] <... futex resumed>) = 0 [pid 20859] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20858] <... exit_group resumed>) = ? [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20863] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20862] +++ exited with 0 +++ [pid 20861] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3607] <... openat resumed>) = 3 [pid 20863] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20863] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20859] exit_group(0 [pid 20858] +++ exited with 0 +++ [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20864] set_robust_list(0x7f61a3ef39e0, 24 [pid 20861] <... futex resumed>) = ? [pid 20859] <... exit_group resumed>) = ? [pid 3607] close(3 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20858, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20864] <... set_robust_list resumed>) = 0 [pid 20861] +++ exited with 0 +++ [pid 20859] +++ exited with 0 +++ [pid 3607] <... close resumed>) = 0 [pid 20864] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20864] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20864] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20863] <... futex resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20863] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... restart_syscall resumed>) = 0 [pid 20863] <... futex resumed>) = 0 [pid 20864] pipe2( [pid 20863] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20865 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20859, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20864] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20864] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] <... restart_syscall resumed>) = 0 [pid 20864] <... futex resumed>) = 1 [pid 20863] <... futex resumed>) = 0 [pid 20864] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20863] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 20864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20863] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20865 attached [pid 20864] dup(4 [pid 20863] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20865] set_robust_list(0x555556ba76e0, 24 [pid 20864] <... dup resumed>) = 5 [pid 20865] <... set_robust_list resumed>) = 0 [pid 20864] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20865] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20864] <... futex resumed>) = 0 [pid 20865] <... prctl resumed>) = 0 [pid 20864] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20865] setpgid(0, 0) = 0 [pid 20865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20863] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] close(3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20863] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20865] write(3, "1000", 4 [pid 20864] <... futex resumed>) = 0 [pid 20863] <... futex resumed>) = 1 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... openat resumed>) = 3 [pid 20865] <... write resumed>) = 4 [pid 20864] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20863] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20866 attached [pid 20865] close(3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20865] <... close resumed>) = 0 [pid 20864] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20866 [pid 20866] set_robust_list(0x555556ba76e0, 24 [pid 20865] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20866] <... set_robust_list resumed>) = 0 [pid 20865] <... futex resumed>) = 0 [pid 20864] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20866] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20865] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20864] <... futex resumed>) = 1 [pid 20863] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20866] <... prctl resumed>) = 0 [pid 20865] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20864] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20863] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20866] setpgid(0, 0 [pid 20865] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20864] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20863] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20867 attached [pid 20866] <... setpgid resumed>) = 0 [pid 20865] <... mprotect resumed>) = 0 [pid 20864] write(5, NULL, 176 [pid 20863] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20867] set_robust_list(0x555556ba76e0, 24 [pid 20866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20865] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20864] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20867 ./strace-static-x86_64: Process 20868 attached [pid 20867] <... set_robust_list resumed>) = 0 [pid 20866] <... openat resumed>) = 3 [pid 20864] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20868] set_robust_list(0x7f61a3ef39e0, 24 [pid 20867] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20866] write(3, "1000", 4 [pid 20865] <... clone resumed>, parent_tid=[20868], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20868 [pid 20864] <... futex resumed>) = 1 [pid 20863] <... futex resumed>) = 0 [pid 20868] <... set_robust_list resumed>) = 0 [pid 20867] <... prctl resumed>) = 0 [pid 20866] <... write resumed>) = 4 [pid 20865] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20864] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20863] exit_group(0 [pid 20868] mkdir("./file0", 0777 [pid 20867] setpgid(0, 0 [pid 20866] close(3 [pid 20865] <... futex resumed>) = 0 [pid 20864] <... futex resumed>) = ? [pid 20863] <... exit_group resumed>) = ? [pid 20868] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20867] <... setpgid resumed>) = 0 [pid 20866] <... close resumed>) = 0 [pid 20865] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20864] +++ exited with 0 +++ [pid 20863] +++ exited with 0 +++ [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20863, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20866] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20866] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20868] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20866] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20868] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20867] <... openat resumed>) = 3 [pid 20866] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20868] <... futex resumed>) = 1 [pid 20867] write(3, "1000", 4 [pid 20866] <... mprotect resumed>) = 0 [pid 20865] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20868] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20867] <... write resumed>) = 4 [pid 20866] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20865] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20868] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20867] close(3 [pid 20865] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20868] pipe2( [pid 20867] <... close resumed>) = 0 [pid 20866] <... clone resumed>, parent_tid=[20869], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20869 [pid 20865] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] close(3 [pid 20868] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20867] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20866] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20868] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20867] <... futex resumed>) = 0 [pid 20866] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 ./strace-static-x86_64: Process 20869 attached [pid 20868] <... futex resumed>) = 1 [pid 20867] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20866] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20865] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20868] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20867] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20865] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20868] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20867] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20868] dup(4 [pid 20867] <... mprotect resumed>) = 0 [pid 20865] <... futex resumed>) = 0 [pid 20868] <... dup resumed>) = 5 [pid 20867] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20865] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20870 [pid 20868] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20865] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20868] <... futex resumed>) = 0 [pid 20867] <... clone resumed>, parent_tid=[20871], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20871 [pid 20865] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20869] set_robust_list(0x7f61a3ef39e0, 24 [pid 20868] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20867] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20865] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20871 attached ./strace-static-x86_64: Process 20870 attached [pid 20869] <... set_robust_list resumed>) = 0 [pid 20865] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20871] set_robust_list(0x7f61a3ef39e0, 24 [pid 20870] set_robust_list(0x555556ba76e0, 24 [pid 20869] mkdir("./file0", 0777 [pid 20867] <... futex resumed>) = 0 [pid 20871] <... set_robust_list resumed>) = 0 [pid 20870] <... set_robust_list resumed>) = 0 [pid 20869] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20871] mkdir("./file0", 0777 [pid 20870] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20869] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20867] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20871] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20870] <... prctl resumed>) = 0 [pid 20869] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20871] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20870] setpgid(0, 0 [pid 20869] <... futex resumed>) = 1 [pid 20871] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20870] <... setpgid resumed>) = 0 [pid 20869] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20871] <... futex resumed>) = 1 [pid 20867] <... futex resumed>) = 0 [pid 20866] <... futex resumed>) = 0 [pid 20871] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20867] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20866] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20870] <... openat resumed>) = 3 [pid 20869] <... futex resumed>) = 0 [pid 20868] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20867] <... futex resumed>) = 0 [pid 20866] <... futex resumed>) = 1 [pid 20871] pipe2( [pid 20870] write(3, "1000", 4 [pid 20869] pipe2( [pid 20868] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20867] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20866] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20871] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20870] <... write resumed>) = 4 [pid 20869] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20868] <... futex resumed>) = 1 [pid 20865] <... futex resumed>) = 0 [pid 20871] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20870] close(3 [pid 20869] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20868] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20865] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20871] <... futex resumed>) = 1 [pid 20870] <... close resumed>) = 0 [pid 20869] <... futex resumed>) = 1 [pid 20868] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20867] <... futex resumed>) = 0 [pid 20866] <... futex resumed>) = 0 [pid 20865] <... futex resumed>) = 0 [pid 20871] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20870] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20869] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20868] write(5, NULL, 176 [pid 20867] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20866] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20865] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20870] <... futex resumed>) = 0 [pid 20869] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20868] <... write resumed>) = -1 EFAULT (Bad address) [pid 20867] <... futex resumed>) = 0 [pid 20866] <... futex resumed>) = 0 [pid 20871] dup(4 [pid 20870] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20869] dup(4 [pid 20868] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20867] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20866] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20871] <... dup resumed>) = 5 [pid 20870] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20869] <... dup resumed>) = 5 [pid 20868] <... futex resumed>) = 1 [pid 20865] <... futex resumed>) = 0 [pid 20871] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20870] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20869] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20868] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20865] exit_group(0 [pid 20871] <... futex resumed>) = 1 [pid 20870] <... mprotect resumed>) = 0 [pid 20869] <... futex resumed>) = 1 [pid 20868] <... futex resumed>) = ? [pid 20867] <... futex resumed>) = 0 [pid 20866] <... futex resumed>) = 0 [pid 20865] <... exit_group resumed>) = ? [pid 20871] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20870] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20869] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20868] +++ exited with 0 +++ [pid 20867] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20866] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20867] <... futex resumed>) = 0 [pid 20866] <... futex resumed>) = 0 [pid 20867] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20866] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20865] +++ exited with 0 +++ [pid 20871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20869] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20871] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20865, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20870] <... clone resumed>, parent_tid=[20872], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20872 [pid 20869] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20870] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20870] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 20870] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20873 ./strace-static-x86_64: Process 20872 attached [pid 20872] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20872] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20872] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20872] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20870] <... futex resumed>) = 0 [pid 20872] pipe2( [pid 20871] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20870] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20873 attached [pid 20872] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20871] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20870] <... futex resumed>) = 0 [pid 20869] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20871] <... futex resumed>) = 1 [pid 20870] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20869] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20867] <... futex resumed>) = 0 [pid 20871] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20869] <... futex resumed>) = 1 [pid 20867] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20866] <... futex resumed>) = 0 [pid 20872] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20871] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20869] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20867] <... futex resumed>) = 0 [pid 20866] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20873] set_robust_list(0x555556ba76e0, 24 [pid 20872] <... futex resumed>) = 1 [pid 20871] write(5, NULL, 176 [pid 20870] <... futex resumed>) = 0 [pid 20869] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20867] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20866] <... futex resumed>) = 0 [pid 20873] <... set_robust_list resumed>) = 0 [pid 20872] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20871] <... write resumed>) = -1 EFAULT (Bad address) [pid 20870] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20869] write(5, NULL, 176 [pid 20866] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20873] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20871] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20870] <... futex resumed>) = 0 [pid 20869] <... write resumed>) = -1 EFAULT (Bad address) [pid 20873] <... prctl resumed>) = 0 [pid 20872] dup(4 [pid 20871] <... futex resumed>) = 1 [pid 20870] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20869] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20867] <... futex resumed>) = 0 [pid 20873] setpgid(0, 0 [pid 20872] <... dup resumed>) = 5 [pid 20871] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20869] <... futex resumed>) = 1 [pid 20867] exit_group(0 [pid 20866] <... futex resumed>) = 0 [pid 20873] <... setpgid resumed>) = 0 [pid 20872] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20871] <... futex resumed>) = ? [pid 20869] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20867] <... exit_group resumed>) = ? [pid 20866] exit_group(0 [pid 20873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20872] <... futex resumed>) = 1 [pid 20871] +++ exited with 0 +++ [pid 20870] <... futex resumed>) = 0 [pid 20869] <... futex resumed>) = ? [pid 20867] +++ exited with 0 +++ [pid 20866] <... exit_group resumed>) = ? [pid 20873] <... openat resumed>) = 3 [pid 20872] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20870] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20869] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20867, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20873] write(3, "1000", 4 [pid 20870] <... futex resumed>) = 0 [pid 20866] +++ exited with 0 +++ [pid 20873] <... write resumed>) = 4 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20866, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20873] close(3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20873] <... close resumed>) = 0 [pid 20870] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 20873] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20873] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20873] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] close(3 [pid 20873] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3604] <... close resumed>) = 0 [pid 20873] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20873] <... mprotect resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20873] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20874 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20873] <... clone resumed>, parent_tid=[20875], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20875 [pid 20872] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] close(3./strace-static-x86_64: Process 20875 attached ./strace-static-x86_64: Process 20874 attached [pid 20873] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20872] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20875] set_robust_list(0x7f61a3ef39e0, 24 [pid 20874] set_robust_list(0x555556ba76e0, 24 [pid 20873] <... futex resumed>) = 0 [pid 20872] <... futex resumed>) = 1 [pid 20870] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20875] <... set_robust_list resumed>) = 0 [pid 20874] <... set_robust_list resumed>) = 0 [pid 20873] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20872] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20870] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20875] mkdir("./file0", 0777 [pid 20874] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20872] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20870] <... futex resumed>) = 0 [pid 20875] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20874] <... prctl resumed>) = 0 [pid 20872] write(5, NULL, 176 [pid 20870] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20876 ./strace-static-x86_64: Process 20876 attached [pid 20875] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20874] setpgid(0, 0 [pid 20872] <... write resumed>) = -1 EFAULT (Bad address) [pid 20876] set_robust_list(0x555556ba76e0, 24 [pid 20875] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20874] <... setpgid resumed>) = 0 [pid 20872] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20876] <... set_robust_list resumed>) = 0 [pid 20875] <... futex resumed>) = 1 [pid 20874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20873] <... futex resumed>) = 0 [pid 20872] <... futex resumed>) = 1 [pid 20870] <... futex resumed>) = 0 [pid 20876] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20875] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20874] <... openat resumed>) = 3 [pid 20873] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20872] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20870] exit_group(0 [pid 20876] <... prctl resumed>) = 0 [pid 20875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20874] write(3, "1000", 4 [pid 20873] <... futex resumed>) = 0 [pid 20872] <... futex resumed>) = ? [pid 20870] <... exit_group resumed>) = ? [pid 20876] setpgid(0, 0 [pid 20875] pipe2( [pid 20874] <... write resumed>) = 4 [pid 20873] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20872] +++ exited with 0 +++ [pid 20875] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20875] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20875] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20870] +++ exited with 0 +++ [pid 20876] <... setpgid resumed>) = 0 [pid 20874] close(3 [pid 20873] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20874] <... close resumed>) = 0 [pid 20873] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20870, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20875] <... futex resumed>) = 0 [pid 20874] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20873] <... futex resumed>) = 1 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20876] <... openat resumed>) = 3 [pid 20875] dup(4 [pid 20874] <... futex resumed>) = 0 [pid 20873] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... restart_syscall resumed>) = 0 [pid 20876] write(3, "1000", 4 [pid 20875] <... dup resumed>) = 5 [pid 20874] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20876] <... write resumed>) = 4 [pid 20875] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20874] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20876] close(3 [pid 20875] <... futex resumed>) = 1 [pid 20874] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20873] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20876] <... close resumed>) = 0 [pid 20875] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20874] <... mprotect resumed>) = 0 [pid 20873] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 20876] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20875] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20874] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20873] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20876] <... futex resumed>) = 0 [pid 20875] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20873] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20876] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20874] <... clone resumed>, parent_tid=[20877], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20877 [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20876] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20874] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20876] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20878 [pid 20874] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20877 attached [pid 20877] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20877] mkdir("./file0", 0777./strace-static-x86_64: Process 20878 attached [pid 20878] set_robust_list(0x555556ba76e0, 24 [pid 20877] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20877] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20876] <... mprotect resumed>) = 0 [pid 20877] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20878] <... set_robust_list resumed>) = 0 [pid 20876] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20877] <... futex resumed>) = 1 [pid 20874] <... futex resumed>) = 0 [pid 20876] <... clone resumed>, parent_tid=[20879], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20879 [pid 20874] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20878] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20877] pipe2( [pid 20876] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20874] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20878] <... prctl resumed>) = 0 [pid 20877] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20876] <... futex resumed>) = 0 [pid 20878] setpgid(0, 0 [pid 20877] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20878] <... setpgid resumed>) = 0 [pid 20877] <... futex resumed>) = 1 [pid 20874] <... futex resumed>) = 0 [pid 20878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20877] dup(4 [pid 20874] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20878] <... openat resumed>) = 3 [pid 20877] <... dup resumed>) = 5 [pid 20876] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20874] <... futex resumed>) = 0 [pid 20878] write(3, "1000", 4 [pid 20877] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20874] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20878] <... write resumed>) = 4 [pid 20877] <... futex resumed>) = 0 [pid 20874] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20878] close(3 [pid 20877] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20874] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20878] <... close resumed>) = 0 [pid 20877] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20874] <... futex resumed>) = 0 [pid 20878] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20877] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20874] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20878] <... futex resumed>) = 0 [pid 20878] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20878] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20878] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20880], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20880 [pid 20878] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20878] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20880 attached [pid 20880] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20880] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20880] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20880] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20878] <... futex resumed>) = 0 [pid 20878] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20878] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20880] <... futex resumed>) = 1 [pid 20880] pipe2([3, 4], 0) = 0 [pid 20880] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20878] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20879 attached [pid 20878] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20875] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20878] <... futex resumed>) = 0 [pid 20878] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20880] <... futex resumed>) = 1 [pid 20880] dup(4) = 5 [pid 20880] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20878] <... futex resumed>) = 0 [pid 20880] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20878] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20875] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20878] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20875] <... futex resumed>) = 1 [pid 20873] <... futex resumed>) = 0 [pid 20873] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20873] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20875] write(5, NULL, 176 [pid 20879] set_robust_list(0x7f61a3ef39e0, 24 [pid 20877] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20875] <... write resumed>) = -1 EFAULT (Bad address) [pid 20879] <... set_robust_list resumed>) = 0 [pid 20877] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20875] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20879] mkdir("./file0", 0777 [pid 20877] <... futex resumed>) = 1 [pid 20874] <... futex resumed>) = 0 [pid 20875] <... futex resumed>) = 1 [pid 20873] <... futex resumed>) = 0 [pid 20879] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20877] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20875] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20874] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20873] exit_group(0 [pid 20879] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20877] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20874] <... futex resumed>) = 0 [pid 20873] <... exit_group resumed>) = ? [pid 20875] <... futex resumed>) = ? [pid 20879] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20877] write(5, NULL, 176 [pid 20874] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20879] <... futex resumed>) = 1 [pid 20877] <... write resumed>) = -1 EFAULT (Bad address) [pid 20876] <... futex resumed>) = 0 [pid 20875] +++ exited with 0 +++ [pid 20873] +++ exited with 0 +++ [pid 20879] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20877] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20876] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20873, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20879] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20877] <... futex resumed>) = 1 [pid 20876] <... futex resumed>) = 0 [pid 20874] <... futex resumed>) = 0 [pid 20880] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20879] pipe2( [pid 20877] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20876] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20874] exit_group(0 [pid 20880] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20879] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20874] <... exit_group resumed>) = ? [pid 20877] <... futex resumed>) = ? [pid 20879] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20876] <... futex resumed>) = 0 [pid 20880] <... futex resumed>) = 1 [pid 20879] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20878] <... futex resumed>) = 0 [pid 20877] +++ exited with 0 +++ [pid 20876] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20874] +++ exited with 0 +++ [pid 20880] write(5, NULL, 176 [pid 20879] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20878] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20876] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20880] <... write resumed>) = -1 EFAULT (Bad address) [pid 20879] dup(4 [pid 20878] <... futex resumed>) = 0 [pid 20876] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... openat resumed>) = 3 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20874, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20880] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20879] <... dup resumed>) = 5 [pid 20878] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20880] <... futex resumed>) = 0 [pid 20879] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20878] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... restart_syscall resumed>) = 0 [pid 20880] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20879] <... futex resumed>) = 1 [pid 20878] exit_group(0 [pid 20876] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20880] <... futex resumed>) = ? [pid 20879] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20878] <... exit_group resumed>) = ? [pid 20876] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 20880] +++ exited with 0 +++ [pid 20879] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20878] +++ exited with 0 +++ [pid 20876] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20879] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20878, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20876] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20881 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3604] <... openat resumed>) = 3 [pid 3601] close(3) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20882 ./strace-static-x86_64: Process 20882 attached [pid 20882] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20882] setpgid(0, 0) = 0 [pid 3604] <... close resumed>) = 0 [pid 20882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20882] <... openat resumed>) = 3 [pid 20882] write(3, "1000", 4 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20883 [pid 20882] <... write resumed>) = 4 ./strace-static-x86_64: Process 20883 attached ./strace-static-x86_64: Process 20881 attached [pid 20882] close(3 [pid 20879] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20883] set_robust_list(0x555556ba76e0, 24 [pid 20882] <... close resumed>) = 0 [pid 20881] set_robust_list(0x555556ba76e0, 24 [pid 20879] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20883] <... set_robust_list resumed>) = 0 [pid 20882] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20881] <... set_robust_list resumed>) = 0 [pid 20879] <... futex resumed>) = 1 [pid 20876] <... futex resumed>) = 0 [pid 20883] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20882] <... futex resumed>) = 0 [pid 20881] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20879] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20876] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20883] <... prctl resumed>) = 0 [pid 20881] <... prctl resumed>) = 0 [pid 20879] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20876] <... futex resumed>) = 0 [pid 20883] setpgid(0, 0 [pid 20882] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20881] setpgid(0, 0 [pid 20879] write(5, NULL, 176 [pid 20876] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20883] <... setpgid resumed>) = 0 [pid 20882] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20879] <... write resumed>) = -1 EFAULT (Bad address) [pid 20883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20882] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20881] <... setpgid resumed>) = 0 [pid 20879] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20883] <... openat resumed>) = 3 [pid 20882] <... mprotect resumed>) = 0 [pid 20879] <... futex resumed>) = 1 [pid 20876] <... futex resumed>) = 0 [pid 20881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20883] write(3, "1000", 4 [pid 20882] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20879] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20876] exit_group(0 [pid 20883] <... write resumed>) = 4 [pid 20879] <... futex resumed>) = ? [pid 20876] <... exit_group resumed>) = ? [pid 20883] close(3 [pid 20881] <... openat resumed>) = 3 [pid 20879] +++ exited with 0 +++ [pid 20883] <... close resumed>) = 0 [pid 20883] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20883] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20882] <... clone resumed>, parent_tid=[20884], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20884 [pid 20881] write(3, "1000", 4 [pid 20876] +++ exited with 0 +++ [pid 20883] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20882] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20881] <... write resumed>) = 4 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20876, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20883] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20882] <... futex resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20881] close(3 [pid 20883] <... mprotect resumed>) = 0 [pid 20882] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... restart_syscall resumed>) = 0 [pid 20883] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20881] <... close resumed>) = 0 ./strace-static-x86_64: Process 20884 attached [pid 20881] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20883] <... clone resumed>, parent_tid=[20885], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20885 [pid 20881] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20883] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20881] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] <... openat resumed>) = 3 [pid 20884] set_robust_list(0x7f61a3ef39e0, 24 [pid 20883] <... futex resumed>) = 0 [pid 20881] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20884] <... set_robust_list resumed>) = 0 [pid 20883] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20881] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20884] mkdir("./file0", 0777 [pid 20881] <... mprotect resumed>) = 0 [pid 3606] close(3./strace-static-x86_64: Process 20885 attached [pid 20884] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20881] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... close resumed>) = 0 [pid 20885] set_robust_list(0x7f61a3ef39e0, 24 [pid 20884] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20885] <... set_robust_list resumed>) = 0 [pid 20884] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20881] <... clone resumed>, parent_tid=[20886], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20886 [pid 20885] mkdir("./file0", 0777 [pid 20884] <... futex resumed>) = 1 [pid 20882] <... futex resumed>) = 0 [pid 20881] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20885] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20884] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20882] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20881] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20887 [pid 20885] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20882] <... futex resumed>) = 0 [pid 20881] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20885] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20884] pipe2( [pid 20882] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20885] <... futex resumed>) = 1 [pid 20884] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20883] <... futex resumed>) = 0 [pid 20885] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20884] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20883] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20884] <... futex resumed>) = 1 [pid 20883] <... futex resumed>) = 0 [pid 20882] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20887 attached ./strace-static-x86_64: Process 20886 attached [pid 20885] pipe2( [pid 20884] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20883] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20882] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20887] set_robust_list(0x555556ba76e0, 24 [pid 20886] set_robust_list(0x7f61a3ef39e0, 24 [pid 20885] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20882] <... futex resumed>) = 0 [pid 20887] <... set_robust_list resumed>) = 0 [pid 20886] <... set_robust_list resumed>) = 0 [pid 20885] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20884] dup(4 [pid 20882] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20887] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20886] mkdir("./file0", 0777 [pid 20885] <... futex resumed>) = 1 [pid 20884] <... dup resumed>) = 5 [pid 20883] <... futex resumed>) = 0 [pid 20887] <... prctl resumed>) = 0 [pid 20886] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20885] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20884] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20883] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20887] setpgid(0, 0 [pid 20886] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20884] <... futex resumed>) = 1 [pid 20883] <... futex resumed>) = 0 [pid 20882] <... futex resumed>) = 0 [pid 20887] <... setpgid resumed>) = 0 [pid 20886] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20885] dup(4 [pid 20884] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20883] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20882] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20886] <... futex resumed>) = 1 [pid 20885] <... dup resumed>) = 5 [pid 20884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20882] <... futex resumed>) = 0 [pid 20881] <... futex resumed>) = 0 [pid 20887] <... openat resumed>) = 3 [pid 20886] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20885] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20884] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20882] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20881] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20887] write(3, "1000", 4 [pid 20886] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20885] <... futex resumed>) = 1 [pid 20883] <... futex resumed>) = 0 [pid 20881] <... futex resumed>) = 0 [pid 20885] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20881] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20883] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20887] <... write resumed>) = 4 [pid 20886] pipe2( [pid 20885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20885] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20887] close(3 [pid 20886] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20883] <... futex resumed>) = 0 [pid 20887] <... close resumed>) = 0 [pid 20886] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20883] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20887] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20886] <... futex resumed>) = 1 [pid 20884] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20881] <... futex resumed>) = 0 [pid 20887] <... futex resumed>) = 0 [pid 20886] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20885] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20884] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20881] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20887] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20886] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20885] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20884] <... futex resumed>) = 1 [pid 20882] <... futex resumed>) = 0 [pid 20881] <... futex resumed>) = 0 [pid 20887] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20886] dup(4 [pid 20885] <... futex resumed>) = 1 [pid 20884] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20883] <... futex resumed>) = 0 [pid 20882] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20881] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20887] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20886] <... dup resumed>) = 5 [pid 20885] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20884] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20883] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20882] <... futex resumed>) = 0 [pid 20887] <... mprotect resumed>) = 0 [pid 20886] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20885] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20884] write(5, NULL, 176 [pid 20883] <... futex resumed>) = 0 [pid 20882] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20887] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20886] <... futex resumed>) = 1 [pid 20885] write(5, NULL, 176 [pid 20884] <... write resumed>) = -1 EFAULT (Bad address) [pid 20883] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20881] <... futex resumed>) = 0 [pid 20885] <... write resumed>) = -1 EFAULT (Bad address) [pid 20884] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20881] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20886] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20885] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20884] <... futex resumed>) = 1 [pid 20883] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20882] <... futex resumed>) = 0 [pid 20881] <... futex resumed>) = 0 [pid 20887] <... clone resumed>, parent_tid=[20888], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20888 [pid 20885] <... futex resumed>) = 0 [pid 20884] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20883] exit_group(0 [pid 20882] exit_group(0 [pid 20881] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20885] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20884] <... futex resumed>) = ? [pid 20882] <... exit_group resumed>) = ? [pid 20887] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20885] +++ exited with 0 +++ [pid 20884] +++ exited with 0 +++ [pid 20883] <... exit_group resumed>) = ? [pid 20882] +++ exited with 0 +++ [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20882, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 20888 attached [pid 20888] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20888] mkdir("./file0", 0777 [pid 3601] <... restart_syscall resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20883] +++ exited with 0 +++ [pid 3601] <... openat resumed>) = 3 [pid 20887] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20883, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20887] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20888] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3601] close(3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20888] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3601] <... close resumed>) = 0 [pid 20888] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20888] <... futex resumed>) = 1 [pid 20887] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20888] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20889 ./strace-static-x86_64: Process 20889 attached [pid 20889] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20889] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20889] setpgid(0, 0) = 0 [pid 20889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20889] write(3, "1000", 4) = 4 [pid 20889] close(3) = 0 [pid 20889] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20887] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20886] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20888] <... futex resumed>) = 0 [pid 20887] <... futex resumed>) = 1 [pid 20886] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20888] pipe2( [pid 20887] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20886] <... futex resumed>) = 1 [pid 20881] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20889] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20888] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20886] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20881] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20889] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20888] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20886] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20881] <... futex resumed>) = 0 [pid 20889] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20888] <... futex resumed>) = 1 [pid 20889] <... mprotect resumed>) = 0 [pid 20888] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20887] <... futex resumed>) = 0 [pid 20886] write(5, NULL, 176 [pid 20881] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20890 attached [pid 20889] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20887] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20886] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20890 [pid 20888] <... futex resumed>) = 0 [pid 20887] <... futex resumed>) = 1 [pid 20886] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20890] set_robust_list(0x555556ba76e0, 24 [pid 20889] <... clone resumed>, parent_tid=[20891], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20891 [pid 20888] dup(4 [pid 20887] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20886] <... futex resumed>) = 1 [pid 20881] <... futex resumed>) = 0 [pid 20890] <... set_robust_list resumed>) = 0 [pid 20889] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20888] <... dup resumed>) = 5 [pid 20886] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20881] exit_group(0 [pid 20889] <... futex resumed>) = 0 [pid 20888] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20886] <... futex resumed>) = ? [pid 20881] <... exit_group resumed>) = ? [pid 20890] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20889] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20888] <... futex resumed>) = 1 [pid 20887] <... futex resumed>) = 0 [pid 20886] +++ exited with 0 +++ [pid 20888] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 20891 attached [pid 20881] +++ exited with 0 +++ [pid 20890] <... prctl resumed>) = 0 [pid 20887] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20881, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20890] setpgid(0, 0 [pid 20888] <... futex resumed>) = 0 [pid 20887] <... futex resumed>) = 1 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20891] set_robust_list(0x7f61a3ef39e0, 24 [pid 20890] <... setpgid resumed>) = 0 [pid 20888] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20887] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... restart_syscall resumed>) = 0 [pid 20890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20890] write(3, "1000", 4) = 4 [pid 20890] close(3) = 0 [pid 20890] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20890] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20890] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20891] <... set_robust_list resumed>) = 0 [pid 20890] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20890] <... clone resumed>, parent_tid=[20892], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20892 [pid 20890] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20890] <... futex resumed>) = 0 [pid 20890] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20892 attached [pid 20892] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20892] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20892] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20892] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20890] <... futex resumed>) = 0 [pid 20890] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20892] <... futex resumed>) = 1 [pid 20890] <... futex resumed>) = 0 [pid 20892] pipe2( [pid 20890] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20892] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3607] close(3 [pid 20892] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20891] mkdir("./file0", 0777 [pid 20892] <... futex resumed>) = 1 [pid 20890] <... futex resumed>) = 0 [pid 20892] dup(4 [pid 20890] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20888] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] <... close resumed>) = 0 [pid 20892] <... dup resumed>) = 5 [pid 20890] <... futex resumed>) = 0 [pid 20892] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20890] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20892] <... futex resumed>) = 0 [pid 20890] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20892] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20890] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20890] <... futex resumed>) = 0 [pid 20892] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20890] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20891] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20888] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20891] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20888] <... futex resumed>) = 1 [pid 20887] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20893 attached [pid 20891] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20888] write(5, NULL, 176 [pid 20887] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20893] set_robust_list(0x555556ba76e0, 24 [pid 20891] <... futex resumed>) = 1 [pid 20889] <... futex resumed>) = 0 [pid 20888] <... write resumed>) = -1 EFAULT (Bad address) [pid 20887] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20893 [pid 20893] <... set_robust_list resumed>) = 0 [pid 20891] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20889] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20888] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20887] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20893] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20892] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20891] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20889] <... futex resumed>) = 0 [pid 20888] <... futex resumed>) = 0 [pid 20887] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20893] <... prctl resumed>) = 0 [pid 20892] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20891] pipe2( [pid 20889] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20888] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20887] exit_group(0 [pid 20893] setpgid(0, 0 [pid 20892] <... futex resumed>) = 1 [pid 20891] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20890] <... futex resumed>) = 0 [pid 20888] <... futex resumed>) = ? [pid 20887] <... exit_group resumed>) = ? [pid 20893] <... setpgid resumed>) = 0 [pid 20892] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20891] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20890] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20888] +++ exited with 0 +++ [pid 20893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20891] <... futex resumed>) = 1 [pid 20889] <... futex resumed>) = 0 [pid 20893] <... openat resumed>) = 3 [pid 20892] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20891] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20890] <... futex resumed>) = 0 [pid 20889] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20887] +++ exited with 0 +++ [pid 20893] write(3, "1000", 4 [pid 20892] write(5, NULL, 176 [pid 20891] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20890] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20889] <... futex resumed>) = 0 [pid 20893] <... write resumed>) = 4 [pid 20892] <... write resumed>) = -1 EFAULT (Bad address) [pid 20891] dup(4 [pid 20889] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20887, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20893] close(3 [pid 20892] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20891] <... dup resumed>) = 5 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20893] <... close resumed>) = 0 [pid 20892] <... futex resumed>) = 1 [pid 20891] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20890] <... futex resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20893] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20892] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20891] <... futex resumed>) = 1 [pid 20890] exit_group(0 [pid 20889] <... futex resumed>) = 0 [pid 20893] <... futex resumed>) = 0 [pid 20892] <... futex resumed>) = ? [pid 20891] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20890] <... exit_group resumed>) = ? [pid 20889] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20893] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20892] +++ exited with 0 +++ [pid 20891] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20889] <... futex resumed>) = 0 [pid 20893] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20891] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20889] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20893] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20890] +++ exited with 0 +++ [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20893] <... mprotect resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20890, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20893] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... close resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20894 [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20895 ./strace-static-x86_64: Process 20894 attached [pid 20893] <... clone resumed>, parent_tid=[20896], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20896 [pid 20893] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 20895 attached [pid 20893] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20895] set_robust_list(0x555556ba76e0, 24 [pid 20894] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20891] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20895] <... set_robust_list resumed>) = 0 [pid 20894] setpgid(0, 0 [pid 20891] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20894] <... setpgid resumed>) = 0 [pid 20894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20894] write(3, "1000", 4) = 4 [pid 20894] close(3) = 0 [pid 20894] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20896 attached ) = 0 [pid 20891] <... futex resumed>) = 1 [pid 20889] <... futex resumed>) = 0 [pid 20896] set_robust_list(0x7f61a3ef39e0, 24 [pid 20895] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20894] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20891] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20889] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20896] <... set_robust_list resumed>) = 0 [pid 20895] <... prctl resumed>) = 0 [pid 20894] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20891] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20889] <... futex resumed>) = 0 [pid 20896] mkdir("./file0", 0777 [pid 20895] setpgid(0, 0 [pid 20894] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20891] write(5, NULL, 176 [pid 20889] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20896] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20895] <... setpgid resumed>) = 0 [pid 20894] <... mprotect resumed>) = 0 [pid 20891] <... write resumed>) = -1 EFAULT (Bad address) [pid 20896] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20894] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20891] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20896] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20895] <... openat resumed>) = 3 [pid 20891] <... futex resumed>) = 1 [pid 20889] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20897 attached [pid 20896] <... futex resumed>) = 1 [pid 20895] write(3, "1000", 4 [pid 20894] <... clone resumed>, parent_tid=[20897], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20897 [pid 20893] <... futex resumed>) = 0 [pid 20891] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20889] exit_group(0 [pid 20896] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20895] <... write resumed>) = 4 [pid 20894] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20893] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20891] <... futex resumed>) = ? [pid 20889] <... exit_group resumed>) = ? [pid 20897] set_robust_list(0x7f61a3ef39e0, 24 [pid 20896] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20895] close(3 [pid 20894] <... futex resumed>) = 0 [pid 20893] <... futex resumed>) = 0 [pid 20891] +++ exited with 0 +++ [pid 20889] +++ exited with 0 +++ [pid 20896] pipe2( [pid 20895] <... close resumed>) = 0 [pid 20894] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20893] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20889, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20896] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20895] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20896] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20895] <... futex resumed>) = 0 [pid 20896] <... futex resumed>) = 1 [pid 20895] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20893] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20897] <... set_robust_list resumed>) = 0 [pid 20896] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20895] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20893] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20897] mkdir("./file0", 0777 [pid 20896] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20895] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20893] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 20897] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20896] dup(4 [pid 20895] <... mprotect resumed>) = 0 [pid 20893] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20897] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20896] <... dup resumed>) = 5 [pid 20895] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20897] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20896] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 20897] <... futex resumed>) = 1 [pid 20896] <... futex resumed>) = 1 [pid 20895] <... clone resumed>, parent_tid=[20898], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20898 [pid 20894] <... futex resumed>) = 0 [pid 20893] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20897] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20896] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20895] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20894] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20893] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20897] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20896] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20895] <... futex resumed>) = 0 [pid 20894] <... futex resumed>) = 0 [pid 20893] <... futex resumed>) = 0 [pid 20895] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20898 attached [pid 20898] set_robust_list(0x7f61a3ef39e0, 24 [pid 20896] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20897] pipe2( [pid 20894] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20893] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20899 [pid 20898] <... set_robust_list resumed>) = 0 [pid 20898] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20898] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20898] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20895] <... futex resumed>) = 0 [pid 20895] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20895] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20898] <... futex resumed>) = 1 [pid 20898] pipe2([3, 4], 0) = 0 [pid 20898] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20895] <... futex resumed>) = 0 [pid 20895] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20895] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20898] <... futex resumed>) = 1 [pid 20898] dup(4) = 5 [pid 20898] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20895] <... futex resumed>) = 0 [pid 20898] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20895] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 20899 attached [pid 20895] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20899] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20897] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20899] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20897] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20894] <... futex resumed>) = 0 [pid 20897] <... futex resumed>) = 1 [pid 20894] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20899] <... prctl resumed>) = 0 [pid 20897] dup(4 [pid 20894] <... futex resumed>) = 0 [pid 20899] setpgid(0, 0 [pid 20897] <... dup resumed>) = 5 [pid 20894] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20899] <... setpgid resumed>) = 0 [pid 20897] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20896] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20894] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20897] <... futex resumed>) = 0 [pid 20896] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20894] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20897] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20896] <... futex resumed>) = 1 [pid 20894] <... futex resumed>) = 0 [pid 20893] <... futex resumed>) = 0 [pid 20899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20896] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20894] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20893] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20899] <... openat resumed>) = 3 [pid 20896] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20893] <... futex resumed>) = 0 [pid 20899] write(3, "1000", 4 [pid 20896] write(5, NULL, 176 [pid 20893] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20896] <... write resumed>) = -1 EFAULT (Bad address) [pid 20896] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20893] <... futex resumed>) = 0 [pid 20896] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20893] exit_group(0 [pid 20896] <... futex resumed>) = ? [pid 20893] <... exit_group resumed>) = ? [pid 20899] <... write resumed>) = 4 [pid 20896] +++ exited with 0 +++ [pid 20893] +++ exited with 0 +++ [pid 20899] close(3) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20893, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20899] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20899] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20899] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20898] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20899] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20898] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20899] <... mprotect resumed>) = 0 [pid 20898] <... futex resumed>) = 1 [pid 20897] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20895] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 20899] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20898] write(5, NULL, 176 [pid 20897] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20895] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 20900 attached [pid 20898] <... write resumed>) = -1 EFAULT (Bad address) [pid 20897] <... futex resumed>) = 1 [pid 20895] <... futex resumed>) = 0 [pid 20894] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20899] <... clone resumed>, parent_tid=[20900], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20900 [pid 20898] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20897] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20895] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20894] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 20900] set_robust_list(0x7f61a3ef39e0, 24 [pid 20899] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20898] <... futex resumed>) = 0 [pid 20897] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20895] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20894] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 20900] <... set_robust_list resumed>) = 0 [pid 20897] write(5, NULL, 176 [pid 20894] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20900] mkdir("./file0", 0777 [pid 20897] <... write resumed>) = -1 EFAULT (Bad address) [pid 20900] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20897] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20900] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20897] <... futex resumed>) = 1 [pid 20894] <... futex resumed>) = 0 [pid 20900] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20897] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20894] exit_group(0 [pid 20900] <... futex resumed>) = 0 [pid 20897] <... futex resumed>) = ? [pid 20894] <... exit_group resumed>) = ? [pid 20900] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20897] +++ exited with 0 +++ [pid 20894] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20894, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20895] exit_group(0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20900] <... futex resumed>) = 0 [pid 20899] <... futex resumed>) = 1 [pid 20895] <... exit_group resumed>) = ? [pid 3606] close(3 [pid 20900] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20899] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20901 [pid 3606] <... close resumed>) = 0 [pid 20899] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20899] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20898] +++ exited with 0 +++ [pid 20895] +++ exited with 0 +++ [pid 20900] <... futex resumed>) = 0 [pid 20899] <... futex resumed>) = 1 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20902 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20895, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20900] pipe2( [pid 20899] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20901 attached [pid 20900] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20901] set_robust_list(0x555556ba76e0, 24 [pid 20900] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20901] <... set_robust_list resumed>) = 0 [pid 20900] <... futex resumed>) = 1 [pid 20899] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20902 attached [pid 20901] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20900] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20899] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20902] set_robust_list(0x555556ba76e0, 24 [pid 20901] <... prctl resumed>) = 0 [pid 20900] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20899] <... futex resumed>) = 0 [pid 20902] <... set_robust_list resumed>) = 0 [pid 20901] setpgid(0, 0 [pid 20900] dup(4 [pid 20899] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20902] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20901] <... setpgid resumed>) = 0 [pid 20900] <... dup resumed>) = 5 [pid 3604] <... openat resumed>) = 3 [pid 20902] <... prctl resumed>) = 0 [pid 20901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20900] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20902] setpgid(0, 0 [pid 20901] <... openat resumed>) = 3 [pid 20902] <... setpgid resumed>) = 0 [pid 20901] write(3, "1000", 4 [pid 20902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20901] <... write resumed>) = 4 [pid 20902] <... openat resumed>) = 3 [pid 20901] close(3 [pid 20902] write(3, "1000", 4 [pid 20901] <... close resumed>) = 0 [pid 20902] <... write resumed>) = 4 [pid 20901] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20902] close(3 [pid 20901] <... futex resumed>) = 0 [pid 20900] <... futex resumed>) = 1 [pid 20899] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20902] <... close resumed>) = 0 [pid 20901] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20900] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20899] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 20902] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20901] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20900] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20899] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20902] <... futex resumed>) = 0 [pid 20901] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20900] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20899] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20902] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20901] <... mprotect resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20902] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20901] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20902] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20901] <... clone resumed>, parent_tid=[20903], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20903 [pid 20902] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20901] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20904 [pid 20902] <... clone resumed>, parent_tid=[20905], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20905 [pid 20901] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20902] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20902] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20905 attached [pid 20905] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20905] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20905] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20905] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20903 attached ) = 1 [pid 20902] <... futex resumed>) = 0 [pid 20905] pipe2( [pid 20903] set_robust_list(0x7f61a3ef39e0, 24 [pid 20902] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20905] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20903] <... set_robust_list resumed>) = 0 [pid 20902] <... futex resumed>) = 0 [pid 20905] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20903] mkdir("./file0", 0777 [pid 20902] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20905] <... futex resumed>) = 0 [pid 20903] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20905] dup(4 [pid 20903] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20902] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20905] <... dup resumed>) = 5 [pid 20903] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20902] <... futex resumed>) = 0 [pid 20905] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20903] <... futex resumed>) = 1 [pid 20902] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20901] <... futex resumed>) = 0 [pid 20905] <... futex resumed>) = 0 [pid 20903] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20902] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20901] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20905] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20903] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20902] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20901] <... futex resumed>) = 0 [pid 20905] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20903] pipe2( [pid 20902] <... futex resumed>) = 0 [pid 20901] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20905] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20903] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20902] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20903] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20901] <... futex resumed>) = 0 [pid 20903] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20901] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20903] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20901] <... futex resumed>) = 0 [pid 20903] dup(4 [pid 20901] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20903] <... dup resumed>) = 5 [pid 20903] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20901] <... futex resumed>) = 0 [pid 20903] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20901] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20903] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20901] <... futex resumed>) = 0 [pid 20903] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20901] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20904 attached [pid 20904] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20904] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20904] setpgid(0, 0) = 0 [pid 20904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20904] write(3, "1000", 4) = 4 [pid 20904] close(3) = 0 [pid 20904] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20904] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20904] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20904] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20906 attached , parent_tid=[20906], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20906 [pid 20904] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20904] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20906] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20906] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20906] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20906] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20904] <... futex resumed>) = 0 [pid 20906] pipe2( [pid 20904] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20906] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20904] <... futex resumed>) = 0 [pid 20906] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20904] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20906] <... futex resumed>) = 0 [pid 20904] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20900] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20900] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20899] <... futex resumed>) = 0 [pid 20904] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20900] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20899] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20900] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20899] <... futex resumed>) = 0 [pid 20906] dup(4 [pid 20904] <... futex resumed>) = 0 [pid 20900] write(5, NULL, 176 [pid 20899] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20905] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20906] <... dup resumed>) = 5 [pid 20905] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20904] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20903] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20900] <... write resumed>) = -1 EFAULT (Bad address) [pid 20906] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20905] <... futex resumed>) = 1 [pid 20903] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20902] <... futex resumed>) = 0 [pid 20900] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20906] <... futex resumed>) = 1 [pid 20905] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20904] <... futex resumed>) = 0 [pid 20903] <... futex resumed>) = 1 [pid 20902] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20901] <... futex resumed>) = 0 [pid 20900] <... futex resumed>) = 1 [pid 20899] <... futex resumed>) = 0 [pid 20906] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20905] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20904] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20903] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20902] <... futex resumed>) = 0 [pid 20901] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20900] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20899] exit_group(0 [pid 20905] write(5, NULL, 176 [pid 20904] <... futex resumed>) = 0 [pid 20903] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20902] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20901] <... futex resumed>) = 0 [pid 20900] <... futex resumed>) = ? [pid 20899] <... exit_group resumed>) = ? [pid 20905] <... write resumed>) = -1 EFAULT (Bad address) [pid 20904] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20903] write(5, NULL, 176 [pid 20901] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20900] +++ exited with 0 +++ [pid 20899] +++ exited with 0 +++ [pid 20905] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20903] <... write resumed>) = -1 EFAULT (Bad address) [pid 20905] <... futex resumed>) = 1 [pid 20903] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20902] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20899, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20905] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20902] exit_group(0 [pid 20901] <... futex resumed>) = 0 [pid 20903] <... futex resumed>) = 1 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20905] <... futex resumed>) = ? [pid 20902] <... exit_group resumed>) = ? [pid 20901] exit_group(0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20901] <... exit_group resumed>) = ? [pid 20905] +++ exited with 0 +++ [pid 20902] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20902, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 20903] +++ exited with 0 +++ [pid 20901] +++ exited with 0 +++ [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20901, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] close(3 [pid 20906] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] <... close resumed>) = 0 [pid 20906] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20906] <... futex resumed>) = 1 [pid 20904] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20907 attached [pid 20906] write(5, NULL, 176 [pid 20904] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20907] set_robust_list(0x555556ba76e0, 24 [pid 20906] <... write resumed>) = -1 EFAULT (Bad address) [pid 20904] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20907 [pid 20907] <... set_robust_list resumed>) = 0 [pid 20906] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20904] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 20907] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20906] <... futex resumed>) = 0 [pid 20904] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... openat resumed>) = 3 [pid 3606] <... close resumed>) = 0 [pid 20907] <... prctl resumed>) = 0 [pid 20906] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20904] exit_group(0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20907] setpgid(0, 0 [pid 20906] <... futex resumed>) = ? [pid 20904] <... exit_group resumed>) = ? [pid 20907] <... setpgid resumed>) = 0 [pid 20906] +++ exited with 0 +++ [pid 20904] +++ exited with 0 +++ [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20908 [pid 20907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20907] write(3, "1000", 4) = 4 [pid 20907] close(3) = 0 [pid 20907] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20907] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20907] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20907] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20909], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20909 [pid 20907] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20907] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20909 attached [pid 20909] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20909] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20909] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20909] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20907] <... futex resumed>) = 0 [pid 20907] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20907] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20910 [pid 20909] <... futex resumed>) = 1 [pid 20909] pipe2( [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20904, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20909] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 20909] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20907] <... futex resumed>) = 0 [pid 20909] dup(4 [pid 20907] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20909] <... dup resumed>) = 5 [pid 20907] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20909] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20907] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20909] <... futex resumed>) = 0 [pid 20907] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] <... openat resumed>) = 3 [pid 20909] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20907] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20909] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20907] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20910 attached [pid 20909] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20907] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] close(3./strace-static-x86_64: Process 20908 attached [pid 20910] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20910] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3604] <... close resumed>) = 0 [pid 20910] <... prctl resumed>) = 0 [pid 20908] set_robust_list(0x555556ba76e0, 24 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20910] setpgid(0, 0) = 0 [pid 20910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20910] write(3, "1000", 4) = 4 [pid 20910] close(3 [pid 20908] <... set_robust_list resumed>) = 0 [pid 20910] <... close resumed>) = 0 [pid 20910] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20910] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20910] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20908] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20911 [pid 20910] <... mprotect resumed>) = 0 [pid 20908] <... prctl resumed>) = 0 [pid 20910] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20908] setpgid(0, 0./strace-static-x86_64: Process 20911 attached [pid 20910] <... clone resumed>, parent_tid=[20912], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20912 [pid 20908] <... setpgid resumed>) = 0 [pid 20911] set_robust_list(0x555556ba76e0, 24 [pid 20910] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20911] <... set_robust_list resumed>) = 0 [pid 20910] <... futex resumed>) = 0 [pid 20911] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20910] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20908] <... openat resumed>) = 3 [pid 20911] <... prctl resumed>) = 0 [pid 20908] write(3, "1000", 4 [pid 20911] setpgid(0, 0 [pid 20908] <... write resumed>) = 4 [pid 20908] close(3) = 0 [pid 20908] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20911] <... setpgid resumed>) = 0 [pid 20908] <... futex resumed>) = 0 [pid 20911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20908] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20911] <... openat resumed>) = 3 [pid 20908] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20911] write(3, "1000", 4 [pid 20908] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20911] <... write resumed>) = 4 [pid 20908] <... mprotect resumed>) = 0 [pid 20911] close(3) = 0 [pid 20908] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20911] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20911] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20908] <... clone resumed>, parent_tid=[20913], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20913 [pid 20911] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20908] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20911] <... mprotect resumed>) = 0 [pid 20908] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20913 attached ./strace-static-x86_64: Process 20912 attached [pid 20911] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20908] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20911] <... clone resumed>, parent_tid=[20914], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20914 [pid 20911] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20913] set_robust_list(0x7f61a3ef39e0, 24 [pid 20911] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20914 attached [pid 20913] <... set_robust_list resumed>) = 0 [pid 20912] set_robust_list(0x7f61a3ef39e0, 24 [pid 20911] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20913] mkdir("./file0", 0777 [pid 20912] <... set_robust_list resumed>) = 0 [pid 20913] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20913] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20912] mkdir("./file0", 0777 [pid 20914] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20913] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20912] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20914] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20914] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20913] <... futex resumed>) = 1 [pid 20912] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20908] <... futex resumed>) = 0 [pid 20914] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20913] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20912] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20908] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20914] <... futex resumed>) = 1 [pid 20913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20912] <... futex resumed>) = 1 [pid 20911] <... futex resumed>) = 0 [pid 20910] <... futex resumed>) = 0 [pid 20908] <... futex resumed>) = 0 [pid 20914] pipe2( [pid 20913] pipe2( [pid 20912] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20911] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20910] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20908] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20913] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20912] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20909] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20914] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20913] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20912] pipe2( [pid 20911] <... futex resumed>) = 0 [pid 20910] <... futex resumed>) = 0 [pid 20909] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20914] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20913] <... futex resumed>) = 1 [pid 20912] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20911] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20910] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20909] <... futex resumed>) = 1 [pid 20908] <... futex resumed>) = 0 [pid 20907] <... futex resumed>) = 0 [pid 20914] <... futex resumed>) = 0 [pid 20913] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20912] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20911] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20909] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20908] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20907] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20914] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20912] <... futex resumed>) = 0 [pid 20911] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20910] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20909] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20908] <... futex resumed>) = 0 [pid 20907] <... futex resumed>) = 0 [pid 20914] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20913] dup(4 [pid 20912] dup(4 [pid 20911] <... futex resumed>) = 0 [pid 20910] <... futex resumed>) = 0 [pid 20909] write(5, NULL, 176 [pid 20908] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20907] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20914] dup(4 [pid 20913] <... dup resumed>) = 5 [pid 20912] <... dup resumed>) = 5 [pid 20911] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20910] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20909] <... write resumed>) = -1 EFAULT (Bad address) [pid 20914] <... dup resumed>) = 5 [pid 20913] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20912] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20909] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20914] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20913] <... futex resumed>) = 1 [pid 20912] <... futex resumed>) = 0 [pid 20910] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20909] <... futex resumed>) = 1 [pid 20908] <... futex resumed>) = 0 [pid 20907] <... futex resumed>) = 0 [pid 20914] <... futex resumed>) = 1 [pid 20913] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20912] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20911] <... futex resumed>) = 0 [pid 20910] <... futex resumed>) = 0 [pid 20909] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20908] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20907] exit_group(0 [pid 20914] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20911] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20910] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20909] <... futex resumed>) = ? [pid 20908] <... futex resumed>) = 0 [pid 20907] <... exit_group resumed>) = ? [pid 20914] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20913] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20911] <... futex resumed>) = 0 [pid 20909] +++ exited with 0 +++ [pid 20908] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20907] +++ exited with 0 +++ [pid 20914] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20911] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20907, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20914] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20914] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20914] <... futex resumed>) = 1 [pid 20912] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20911] <... futex resumed>) = 0 [pid 20913] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20914] write(5, NULL, 176 [pid 20912] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20911] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20914] <... write resumed>) = -1 EFAULT (Bad address) [pid 20913] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20912] <... futex resumed>) = 1 [pid 20911] <... futex resumed>) = 0 [pid 20910] <... futex resumed>) = 0 [pid 3601] close(3 [pid 20914] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20913] <... futex resumed>) = 1 [pid 20912] write(5, NULL, 176 [pid 20911] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20910] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20908] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 20914] <... futex resumed>) = 0 [pid 20913] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20912] <... write resumed>) = -1 EFAULT (Bad address) [pid 20911] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20910] <... futex resumed>) = 0 [pid 20908] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20914] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20913] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20912] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20911] exit_group(0 [pid 20910] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20908] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20915 attached [pid 20914] <... futex resumed>) = ? [pid 20913] write(5, NULL, 176 [pid 20912] <... futex resumed>) = 0 [pid 20911] <... exit_group resumed>) = ? [pid 20910] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20908] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20915] set_robust_list(0x555556ba76e0, 24 [pid 20914] +++ exited with 0 +++ [pid 20913] <... write resumed>) = -1 EFAULT (Bad address) [pid 20912] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20915] <... set_robust_list resumed>) = 0 [pid 20913] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20911] +++ exited with 0 +++ [pid 20910] exit_group(0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20915 [pid 20915] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20913] <... futex resumed>) = 1 [pid 20912] <... futex resumed>) = ? [pid 20910] <... exit_group resumed>) = ? [pid 20908] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20911, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20915] <... prctl resumed>) = 0 [pid 20913] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20912] +++ exited with 0 +++ [pid 20908] exit_group(0 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20915] setpgid(0, 0 [pid 20913] <... futex resumed>) = ? [pid 20910] +++ exited with 0 +++ [pid 20908] <... exit_group resumed>) = ? [pid 3604] <... restart_syscall resumed>) = 0 [pid 20915] <... setpgid resumed>) = 0 [pid 20913] +++ exited with 0 +++ [pid 20908] +++ exited with 0 +++ [pid 20915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20910, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20908, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20915] <... openat resumed>) = 3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20915] write(3, "1000", 4 [pid 3607] <... openat resumed>) = 3 [pid 3604] <... openat resumed>) = 3 [pid 20915] <... write resumed>) = 4 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20915] close(3 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20915] <... close resumed>) = 0 [pid 3607] close(3 [pid 3604] close(3 [pid 20915] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20915] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... openat resumed>) = 3 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20916 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20917 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] close(3) = 0 ./strace-static-x86_64: Process 20917 attached ./strace-static-x86_64: Process 20916 attached [pid 20915] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20917] set_robust_list(0x555556ba76e0, 24 [pid 20916] set_robust_list(0x555556ba76e0, 24 [pid 20915] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20917] <... set_robust_list resumed>) = 0 [pid 20916] <... set_robust_list resumed>) = 0 [pid 20915] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20918 ./strace-static-x86_64: Process 20918 attached [pid 20917] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20916] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20915] <... mprotect resumed>) = 0 [pid 20917] <... prctl resumed>) = 0 [pid 20916] <... prctl resumed>) = 0 [pid 20915] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20917] setpgid(0, 0 [pid 20916] setpgid(0, 0 [pid 20917] <... setpgid resumed>) = 0 [pid 20916] <... setpgid resumed>) = 0 [pid 20915] <... clone resumed>, parent_tid=[20919], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20919 [pid 20917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20918] set_robust_list(0x555556ba76e0, 24 [pid 20916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20915] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20919 attached [pid 20918] <... set_robust_list resumed>) = 0 [pid 20917] <... openat resumed>) = 3 [pid 20916] <... openat resumed>) = 3 [pid 20915] <... futex resumed>) = 0 [pid 20919] set_robust_list(0x7f61a3ef39e0, 24 [pid 20918] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20917] write(3, "1000", 4 [pid 20916] write(3, "1000", 4 [pid 20915] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20919] <... set_robust_list resumed>) = 0 [pid 20918] <... prctl resumed>) = 0 [pid 20917] <... write resumed>) = 4 [pid 20916] <... write resumed>) = 4 [pid 20919] mkdir("./file0", 0777 [pid 20918] setpgid(0, 0 [pid 20917] close(3 [pid 20916] close(3 [pid 20919] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20918] <... setpgid resumed>) = 0 [pid 20917] <... close resumed>) = 0 [pid 20916] <... close resumed>) = 0 [pid 20919] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20917] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20916] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20919] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20918] <... openat resumed>) = 3 [pid 20917] <... futex resumed>) = 0 [pid 20916] <... futex resumed>) = 0 [pid 20919] <... futex resumed>) = 1 [pid 20918] write(3, "1000", 4 [pid 20917] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20916] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20915] <... futex resumed>) = 0 [pid 20919] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20918] <... write resumed>) = 4 [pid 20917] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20916] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20915] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20919] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20918] close(3 [pid 20917] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20916] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20915] <... futex resumed>) = 0 [pid 20919] pipe2( [pid 20918] <... close resumed>) = 0 [pid 20917] <... mprotect resumed>) = 0 [pid 20916] <... mprotect resumed>) = 0 [pid 20915] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20919] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20918] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20917] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20916] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20919] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20918] <... futex resumed>) = 0 [pid 20919] <... futex resumed>) = 1 [pid 20918] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20915] <... futex resumed>) = 0 [pid 20919] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20918] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20917] <... clone resumed>, parent_tid=[20920], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20920 [pid 20916] <... clone resumed>, parent_tid=[20921], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20921 [pid 20915] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20919] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20918] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20917] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20916] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20915] <... futex resumed>) = 0 [pid 20919] dup(4 [pid 20918] <... mprotect resumed>) = 0 [pid 20917] <... futex resumed>) = 0 [pid 20916] <... futex resumed>) = 0 [pid 20915] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20921 attached ./strace-static-x86_64: Process 20920 attached [pid 20919] <... dup resumed>) = 5 [pid 20918] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20917] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20916] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20922 attached [pid 20921] set_robust_list(0x7f61a3ef39e0, 24 [pid 20920] set_robust_list(0x7f61a3ef39e0, 24 [pid 20919] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20922] set_robust_list(0x7f61a3ef39e0, 24 [pid 20921] <... set_robust_list resumed>) = 0 [pid 20920] <... set_robust_list resumed>) = 0 [pid 20919] <... futex resumed>) = 1 [pid 20918] <... clone resumed>, parent_tid=[20922], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20922 [pid 20915] <... futex resumed>) = 0 [pid 20922] <... set_robust_list resumed>) = 0 [pid 20921] mkdir("./file0", 0777 [pid 20920] mkdir("./file0", 0777 [pid 20919] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20918] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20915] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20922] mkdir("./file0", 0777 [pid 20921] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20920] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20919] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20918] <... futex resumed>) = 0 [pid 20915] <... futex resumed>) = 0 [pid 20922] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20921] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20920] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20919] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20918] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20915] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20922] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20921] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20920] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20921] <... futex resumed>) = 1 [pid 20916] <... futex resumed>) = 0 [pid 20921] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20916] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20921] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20920] <... futex resumed>) = 1 [pid 20917] <... futex resumed>) = 0 [pid 20916] <... futex resumed>) = 0 [pid 20921] pipe2( [pid 20917] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20916] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20921] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20917] <... futex resumed>) = 0 [pid 20921] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20917] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20921] <... futex resumed>) = 1 [pid 20916] <... futex resumed>) = 0 [pid 20921] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20916] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20921] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20920] pipe2( [pid 20916] <... futex resumed>) = 0 [pid 20921] dup(4 [pid 20920] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20916] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20921] <... dup resumed>) = 5 [pid 20920] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20921] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20920] <... futex resumed>) = 1 [pid 20917] <... futex resumed>) = 0 [pid 20921] <... futex resumed>) = 1 [pid 20920] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20917] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20916] <... futex resumed>) = 0 [pid 20921] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20920] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20917] <... futex resumed>) = 0 [pid 20916] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20921] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20920] dup(4 [pid 20917] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20916] <... futex resumed>) = 0 [pid 20921] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20920] <... dup resumed>) = 5 [pid 20916] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20922] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20918] <... futex resumed>) = 0 [pid 20920] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20922] pipe2( [pid 20920] <... futex resumed>) = 1 [pid 20918] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20917] <... futex resumed>) = 0 [pid 20922] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20920] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20918] <... futex resumed>) = 0 [pid 20917] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20922] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20920] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20919] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20918] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20917] <... futex resumed>) = 0 [pid 20920] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20919] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20918] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20917] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20922] <... futex resumed>) = 0 [pid 20919] <... futex resumed>) = 1 [pid 20918] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20915] <... futex resumed>) = 0 [pid 20922] dup(4 [pid 20919] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20918] <... futex resumed>) = 0 [pid 20915] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20919] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20918] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20915] <... futex resumed>) = 0 [pid 20922] <... dup resumed>) = 5 [pid 20922] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20921] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20919] write(5, NULL, 176 [pid 20915] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20922] <... futex resumed>) = 1 [pid 20921] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20918] <... futex resumed>) = 0 [pid 20922] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20921] <... futex resumed>) = 1 [pid 20916] <... futex resumed>) = 0 [pid 20921] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20918] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20916] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20922] <... futex resumed>) = 0 [pid 20921] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20918] <... futex resumed>) = 1 [pid 20916] <... futex resumed>) = 0 [pid 20922] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20921] write(5, NULL, 176 [pid 20918] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20916] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20921] <... write resumed>) = -1 EFAULT (Bad address) [pid 20921] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20919] <... write resumed>) = -1 EFAULT (Bad address) [pid 20916] <... futex resumed>) = 0 [pid 20921] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20919] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20916] exit_group(0 [pid 20920] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20919] <... futex resumed>) = 1 [pid 20920] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20919] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20920] <... futex resumed>) = 1 [pid 20917] <... futex resumed>) = 0 [pid 20916] <... exit_group resumed>) = ? [pid 20915] <... futex resumed>) = 0 [pid 20921] <... futex resumed>) = ? [pid 20920] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20917] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20920] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20917] <... futex resumed>) = 0 [pid 20921] +++ exited with 0 +++ [pid 20920] write(5, NULL, 176 [pid 20917] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20916] +++ exited with 0 +++ [pid 20915] exit_group(0 [pid 20920] <... write resumed>) = -1 EFAULT (Bad address) [pid 20920] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20917] <... futex resumed>) = 0 [pid 20920] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20917] exit_group(0 [pid 20920] <... futex resumed>) = ? [pid 20917] <... exit_group resumed>) = ? [pid 20920] +++ exited with 0 +++ [pid 20917] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20917, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20923 ./strace-static-x86_64: Process 20923 attached [pid 20919] <... futex resumed>) = ? [pid 20915] <... exit_group resumed>) = ? [pid 20919] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20916, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20923] set_robust_list(0x555556ba76e0, 24 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20923] <... set_robust_list resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20923] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20915] +++ exited with 0 +++ [pid 20923] <... prctl resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20915, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20923] setpgid(0, 0 [pid 20922] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20923] <... setpgid resumed>) = 0 [pid 20922] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 3601] <... restart_syscall resumed>) = 0 [pid 20923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20922] <... futex resumed>) = 1 [pid 20918] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20923] <... openat resumed>) = 3 [pid 20922] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20918] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20922] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20923] write(3, "1000", 4 [pid 20918] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20923] <... write resumed>) = 4 [pid 20922] write(5, NULL, 176 [pid 20918] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20923] close(3 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... openat resumed>) = 3 [pid 20923] <... close resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20923] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20924 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20923] <... futex resumed>) = 0 [pid 20922] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] close(3 [pid 20923] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20922] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 20923] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20922] <... futex resumed>) = 1 [pid 20918] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20923] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20922] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20918] exit_group(0 [pid 20923] <... mprotect resumed>) = 0 [pid 20922] <... futex resumed>) = ? [pid 20918] <... exit_group resumed>) = ? [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20925 [pid 20923] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20922] +++ exited with 0 +++ [pid 20918] +++ exited with 0 +++ [pid 20923] <... clone resumed>, parent_tid=[20926], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20926 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20918, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- ./strace-static-x86_64: Process 20924 attached [pid 20923] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20923] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20925 attached [pid 20925] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20925] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20924] set_robust_list(0x555556ba76e0, 24./strace-static-x86_64: Process 20926 attached [pid 20925] <... prctl resumed>) = 0 [pid 20924] <... set_robust_list resumed>) = 0 [pid 20925] setpgid(0, 0) = 0 [pid 20926] set_robust_list(0x7f61a3ef39e0, 24 [pid 20925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20924] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20926] <... set_robust_list resumed>) = 0 [pid 20924] <... prctl resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20925] <... openat resumed>) = 3 [pid 20924] setpgid(0, 0 [pid 3606] <... openat resumed>) = 3 [pid 20926] mkdir("./file0", 0777 [pid 20925] write(3, "1000", 4 [pid 20924] <... setpgid resumed>) = 0 [pid 20926] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20926] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20925] <... write resumed>) = 4 [pid 20924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20925] close(3 [pid 3606] close(3 [pid 20926] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20925] <... close resumed>) = 0 [pid 20924] <... openat resumed>) = 3 [pid 3606] <... close resumed>) = 0 [pid 20925] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20924] write(3, "1000", 4 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20925] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20925] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20924] <... write resumed>) = 4 [pid 20925] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20924] close(3 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20927 [pid 20924] <... close resumed>) = 0 [pid 20926] <... futex resumed>) = 1 [pid 20925] <... clone resumed>, parent_tid=[20928], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20928 [pid 20923] <... futex resumed>) = 0 [pid 20925] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20923] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20924] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20926] pipe2(./strace-static-x86_64: Process 20927 attached [pid 20925] <... futex resumed>) = 0 [pid 20923] <... futex resumed>) = 0 [pid 20927] set_robust_list(0x555556ba76e0, 24 [pid 20926] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20925] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20924] <... futex resumed>) = 0 [pid 20923] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20927] <... set_robust_list resumed>) = 0 [pid 20926] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20924] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20923] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20927] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20926] <... futex resumed>) = 0 [pid 20924] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20923] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20928 attached [pid 20927] <... prctl resumed>) = 0 [pid 20926] dup(4 [pid 20924] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20923] <... futex resumed>) = 0 [pid 20928] set_robust_list(0x7f61a3ef39e0, 24 [pid 20927] setpgid(0, 0 [pid 20926] <... dup resumed>) = 5 [pid 20923] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20924] <... mprotect resumed>) = 0 [pid 20928] <... set_robust_list resumed>) = 0 [pid 20927] <... setpgid resumed>) = 0 [pid 20926] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20923] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20928] mkdir("./file0", 0777 [pid 20927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20926] <... futex resumed>) = 0 [pid 20924] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20923] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20928] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20927] <... openat resumed>) = 3 [pid 20926] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20923] <... futex resumed>) = 0 [pid 20928] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20927] write(3, "1000", 4 [pid 20924] <... clone resumed>, parent_tid=[20929], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20929 [pid 20923] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20928] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20927] <... write resumed>) = 4 [pid 20924] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20928] <... futex resumed>) = 1 [pid 20927] close(3 [pid 20925] <... futex resumed>) = 0 [pid 20924] <... futex resumed>) = 0 [pid 20928] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20927] <... close resumed>) = 0 [pid 20925] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20928] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20927] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20925] <... futex resumed>) = 0 [pid 20924] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20928] pipe2( [pid 20927] <... futex resumed>) = 0 [pid 20925] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20929 attached [pid 20928] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20927] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20929] set_robust_list(0x7f61a3ef39e0, 24 [pid 20928] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20927] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20929] <... set_robust_list resumed>) = 0 [pid 20928] <... futex resumed>) = 1 [pid 20927] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20925] <... futex resumed>) = 0 [pid 20929] mkdir("./file0", 0777 [pid 20928] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20927] <... mprotect resumed>) = 0 [pid 20925] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20929] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20928] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20927] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20925] <... futex resumed>) = 0 [pid 20929] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20928] dup(4 [pid 20925] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20929] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20928] <... dup resumed>) = 5 [pid 20927] <... clone resumed>, parent_tid=[20930], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20930 [pid 20929] <... futex resumed>) = 1 [pid 20928] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20927] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20929] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20928] <... futex resumed>) = 1 [pid 20927] <... futex resumed>) = 0 [pid 20925] <... futex resumed>) = 0 [pid 20928] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20927] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20925] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20928] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20925] <... futex resumed>) = 0 [pid 20928] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20925] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20924] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20930 attached [pid 20924] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20930] set_robust_list(0x7f61a3ef39e0, 24 [pid 20929] <... futex resumed>) = 0 [pid 20924] <... futex resumed>) = 1 [pid 20930] <... set_robust_list resumed>) = 0 [pid 20929] pipe2( [pid 20924] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20930] mkdir("./file0", 0777 [pid 20929] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20929] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20929] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20930] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20930] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20930] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20927] <... futex resumed>) = 0 [pid 20930] pipe2( [pid 20927] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20930] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20927] <... futex resumed>) = 0 [pid 20924] <... futex resumed>) = 0 [pid 20930] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20927] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20930] <... futex resumed>) = 0 [pid 20927] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20924] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20930] dup(4 [pid 20927] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20930] <... dup resumed>) = 5 [pid 20927] <... futex resumed>) = 0 [pid 20926] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20930] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20929] <... futex resumed>) = 0 [pid 20927] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20924] <... futex resumed>) = 1 [pid 20930] <... futex resumed>) = 0 [pid 20929] dup(4 [pid 20927] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20926] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20924] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20930] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20929] <... dup resumed>) = 5 [pid 20927] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20926] <... futex resumed>) = 1 [pid 20923] <... futex resumed>) = 0 [pid 20930] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20929] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20927] <... futex resumed>) = 0 [pid 20923] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20926] write(5, NULL, 176 [pid 20930] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20929] <... futex resumed>) = 1 [pid 20928] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20927] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20926] <... write resumed>) = -1 EFAULT (Bad address) [pid 20924] <... futex resumed>) = 0 [pid 20923] <... futex resumed>) = 0 [pid 20929] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20928] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20926] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20924] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20923] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20929] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20928] <... futex resumed>) = 1 [pid 20926] <... futex resumed>) = 0 [pid 20925] <... futex resumed>) = 0 [pid 20924] <... futex resumed>) = 0 [pid 20929] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20928] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20926] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20925] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20924] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20923] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20928] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20925] <... futex resumed>) = 0 [pid 20923] exit_group(0 [pid 20928] write(5, NULL, 176) = -1 EFAULT (Bad address) [pid 20928] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20928] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20926] <... futex resumed>) = ? [pid 20925] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20923] <... exit_group resumed>) = ? [pid 20926] +++ exited with 0 +++ [pid 20925] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20923] +++ exited with 0 +++ [pid 20925] exit_group(0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20923, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20928] <... futex resumed>) = ? [pid 20925] <... exit_group resumed>) = ? [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20928] +++ exited with 0 +++ [pid 3604] <... restart_syscall resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20925] +++ exited with 0 +++ [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20925, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20931 [pid 3601] <... openat resumed>) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 ./strace-static-x86_64: Process 20931 attached [pid 20931] set_robust_list(0x555556ba76e0, 24 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20931] <... set_robust_list resumed>) = 0 [pid 20930] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20930] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20929] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20932 [pid 20930] <... futex resumed>) = 1 [pid 20929] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20927] <... futex resumed>) = 0 [pid 20930] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20929] <... futex resumed>) = 1 [pid 20927] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20924] <... futex resumed>) = 0 [pid 20930] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20929] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20927] <... futex resumed>) = 0 [pid 20924] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20930] write(5, NULL, 176 [pid 20929] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20927] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20924] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20932 attached [pid 20930] <... write resumed>) = -1 EFAULT (Bad address) [pid 20929] write(5, NULL, 176 [pid 20924] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20932] set_robust_list(0x555556ba76e0, 24 [pid 20931] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20930] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20929] <... write resumed>) = -1 EFAULT (Bad address) [pid 20932] <... set_robust_list resumed>) = 0 [pid 20931] <... prctl resumed>) = 0 [pid 20930] <... futex resumed>) = 1 [pid 20929] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20927] <... futex resumed>) = 0 [pid 20932] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20931] setpgid(0, 0 [pid 20930] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20929] <... futex resumed>) = 1 [pid 20927] exit_group(0 [pid 20924] <... futex resumed>) = 0 [pid 20932] <... prctl resumed>) = 0 [pid 20931] <... setpgid resumed>) = 0 [pid 20930] <... futex resumed>) = ? [pid 20929] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20927] <... exit_group resumed>) = ? [pid 20924] exit_group(0 [pid 20932] setpgid(0, 0 [pid 20931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20930] +++ exited with 0 +++ [pid 20924] <... exit_group resumed>) = ? [pid 20932] <... setpgid resumed>) = 0 [pid 20931] <... openat resumed>) = 3 [pid 20929] <... futex resumed>) = ? [pid 20927] +++ exited with 0 +++ [pid 20931] write(3, "1000", 4) = 4 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20927, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20931] close(3 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20931] <... close resumed>) = 0 [pid 20931] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20929] +++ exited with 0 +++ [pid 20924] +++ exited with 0 +++ [pid 20932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3606] <... restart_syscall resumed>) = 0 [pid 20932] <... openat resumed>) = 3 [pid 20931] <... futex resumed>) = 0 [pid 20932] write(3, "1000", 4 [pid 20931] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20924, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20932] <... write resumed>) = 4 [pid 20931] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20932] close(3 [pid 20931] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] <... restart_syscall resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20932] <... close resumed>) = 0 [pid 20931] <... mprotect resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20932] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20931] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20932] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] close(3./strace-static-x86_64: Process 20933 attached [pid 20932] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20931] <... clone resumed>, parent_tid=[20933], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20933 [pid 3607] <... openat resumed>) = 3 [pid 3606] <... close resumed>) = 0 [pid 20933] set_robust_list(0x7f61a3ef39e0, 24 [pid 20932] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20931] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20933] <... set_robust_list resumed>) = 0 [pid 20932] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20931] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20933] mkdir("./file0", 0777 [pid 20932] <... mprotect resumed>) = 0 [pid 20931] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] close(3 [pid 20933] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20932] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... close resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20934 [pid 20933] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20933] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20932] <... clone resumed>, parent_tid=[20935], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20935 [pid 20933] <... futex resumed>) = 1 [pid 20932] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20936 [pid 20933] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20932] <... futex resumed>) = 0 [pid 20932] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20936 attached [pid 20931] <... futex resumed>) = 0 [pid 20931] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20933] <... futex resumed>) = 0 [pid 20933] pipe2( [pid 20931] <... futex resumed>) = 1 ./strace-static-x86_64: Process 20934 attached [pid 20933] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20931] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20936] set_robust_list(0x555556ba76e0, 24 [pid 20933] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20931] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 20935 attached [pid 20936] <... set_robust_list resumed>) = 0 [pid 20934] set_robust_list(0x555556ba76e0, 24 [pid 20933] <... futex resumed>) = 0 [pid 20931] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20936] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20935] set_robust_list(0x7f61a3ef39e0, 24 [pid 20934] <... set_robust_list resumed>) = 0 [pid 20933] dup(4 [pid 20931] <... futex resumed>) = 0 [pid 20936] <... prctl resumed>) = 0 [pid 20935] <... set_robust_list resumed>) = 0 [pid 20934] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20933] <... dup resumed>) = 5 [pid 20931] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20936] setpgid(0, 0 [pid 20935] mkdir("./file0", 0777 [pid 20934] <... prctl resumed>) = 0 [pid 20933] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20931] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20936] <... setpgid resumed>) = 0 [pid 20935] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20934] setpgid(0, 0 [pid 20933] <... futex resumed>) = 0 [pid 20931] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20935] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20934] <... setpgid resumed>) = 0 [pid 20933] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20936] <... openat resumed>) = 3 [pid 20931] <... futex resumed>) = 0 [pid 20936] write(3, "1000", 4 [pid 20935] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20931] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20936] <... write resumed>) = 4 [pid 20935] <... futex resumed>) = 1 [pid 20934] <... openat resumed>) = 3 [pid 20932] <... futex resumed>) = 0 [pid 20936] close(3 [pid 20935] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20934] write(3, "1000", 4 [pid 20932] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20936] <... close resumed>) = 0 [pid 20935] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20934] <... write resumed>) = 4 [pid 20933] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20932] <... futex resumed>) = 0 [pid 20936] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20935] pipe2( [pid 20934] close(3 [pid 20933] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20932] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20936] <... futex resumed>) = 0 [pid 20935] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20934] <... close resumed>) = 0 [pid 20933] <... futex resumed>) = 1 [pid 20931] <... futex resumed>) = 0 [pid 20936] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20935] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20934] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20933] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20931] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20936] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20935] <... futex resumed>) = 1 [pid 20934] <... futex resumed>) = 0 [pid 20933] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20932] <... futex resumed>) = 0 [pid 20931] <... futex resumed>) = 0 [pid 20936] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20935] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20934] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20933] write(5, NULL, 176 [pid 20932] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20931] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20936] <... mprotect resumed>) = 0 [pid 20935] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20934] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20933] <... write resumed>) = -1 EFAULT (Bad address) [pid 20932] <... futex resumed>) = 0 [pid 20936] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20935] dup(4 [pid 20934] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20933] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20932] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20937 attached [pid 20935] <... dup resumed>) = 5 [pid 20934] <... mprotect resumed>) = 0 [pid 20933] <... futex resumed>) = 1 [pid 20931] <... futex resumed>) = 0 [pid 20936] <... clone resumed>, parent_tid=[20937], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20937 [pid 20935] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20934] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20933] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20931] exit_group(0 [pid 20936] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20935] <... futex resumed>) = 1 [pid 20933] <... futex resumed>) = ? [pid 20932] <... futex resumed>) = 0 [pid 20931] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 20938 attached [pid 20937] set_robust_list(0x7f61a3ef39e0, 24 [pid 20936] <... futex resumed>) = 0 [pid 20935] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20934] <... clone resumed>, parent_tid=[20938], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20938 [pid 20933] +++ exited with 0 +++ [pid 20932] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20931] +++ exited with 0 +++ [pid 20938] set_robust_list(0x7f61a3ef39e0, 24 [pid 20937] <... set_robust_list resumed>) = 0 [pid 20936] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20934] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20932] <... futex resumed>) = 0 [pid 20935] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20931, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20937] mkdir("./file0", 0777 [pid 20935] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20934] <... futex resumed>) = 0 [pid 20932] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20937] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20935] <... futex resumed>) = 0 [pid 20934] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20932] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20937] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20935] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20932] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20935] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20932] <... futex resumed>) = 0 [pid 20937] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20935] write(5, NULL, 176 [pid 20932] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20937] <... futex resumed>) = 1 [pid 20936] <... futex resumed>) = 0 [pid 20935] <... write resumed>) = -1 EFAULT (Bad address) [pid 20937] pipe2( [pid 20936] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20935] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20938] <... set_robust_list resumed>) = 0 [pid 20937] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20936] <... futex resumed>) = 0 [pid 20935] <... futex resumed>) = 1 [pid 20932] <... futex resumed>) = 0 [pid 20938] mkdir("./file0", 0777 [pid 20937] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20936] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20935] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20932] exit_group(0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20938] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20937] <... futex resumed>) = 0 [pid 20936] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20935] <... futex resumed>) = ? [pid 20932] <... exit_group resumed>) = ? [pid 20938] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20937] dup(4 [pid 20936] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20935] +++ exited with 0 +++ [pid 3604] <... openat resumed>) = 3 [pid 20938] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20937] <... dup resumed>) = 5 [pid 20936] <... futex resumed>) = 0 [pid 20932] +++ exited with 0 +++ [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20938] <... futex resumed>) = 1 [pid 20937] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20936] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20934] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20932, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20938] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20937] <... futex resumed>) = 0 [pid 20936] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20934] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 20938] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20937] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20936] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20934] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20938] pipe2( [pid 20937] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20936] <... futex resumed>) = 0 [pid 20934] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... restart_syscall resumed>) = 0 [pid 20938] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20937] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20936] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20938] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20939 [pid 3601] <... openat resumed>) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20940 [pid 20934] <... futex resumed>) = 0 [pid 20938] <... futex resumed>) = 1 [pid 20934] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20938] dup(4./strace-static-x86_64: Process 20940 attached [pid 20940] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20940] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20940] setpgid(0, 0 [pid 20934] <... futex resumed>) = 0 [pid 20940] <... setpgid resumed>) = 0 [pid 20934] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20938] <... dup resumed>) = 5 ./strace-static-x86_64: Process 20939 attached [pid 20940] <... openat resumed>) = 3 [pid 20938] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20937] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20939] set_robust_list(0x555556ba76e0, 24 [pid 20938] <... futex resumed>) = 1 [pid 20937] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20940] write(3, "1000", 4 [pid 20934] <... futex resumed>) = 0 [pid 20940] <... write resumed>) = 4 [pid 20939] <... set_robust_list resumed>) = 0 [pid 20938] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20937] <... futex resumed>) = 1 [pid 20936] <... futex resumed>) = 0 [pid 20934] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20940] close(3 [pid 20939] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20938] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20937] write(5, NULL, 176 [pid 20936] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20934] <... futex resumed>) = 0 [pid 20940] <... close resumed>) = 0 [pid 20939] <... prctl resumed>) = 0 [pid 20938] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20937] <... write resumed>) = -1 EFAULT (Bad address) [pid 20936] <... futex resumed>) = 0 [pid 20934] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20940] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20937] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20936] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20940] <... futex resumed>) = 0 [pid 20936] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20940] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20937] <... futex resumed>) = 0 [pid 20936] exit_group(0 [pid 20940] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20936] <... exit_group resumed>) = ? [pid 20940] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20940] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20941], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20941 [pid 20940] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20940] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20941 attached [pid 20941] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20941] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20941] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20937] +++ exited with 0 +++ [pid 20936] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20936, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20939] setpgid(0, 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20941] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20942 [pid 20941] <... futex resumed>) = 1 [pid 20940] <... futex resumed>) = 0 [pid 20941] pipe2( [pid 20940] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20941] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20940] <... futex resumed>) = 0 [pid 20941] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20940] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20941] <... futex resumed>) = 0 [pid 20940] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20941] dup(4 [pid 20940] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20941] <... dup resumed>) = 5 [pid 20940] <... futex resumed>) = 0 [pid 20939] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 20942 attached [pid 20941] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20940] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20942] set_robust_list(0x555556ba76e0, 24 [pid 20941] <... futex resumed>) = 0 [pid 20940] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20938] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20942] <... set_robust_list resumed>) = 0 [pid 20941] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20940] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20942] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20940] <... futex resumed>) = 0 [pid 20939] <... openat resumed>) = 3 [pid 20938] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20942] <... prctl resumed>) = 0 [pid 20941] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20940] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20939] write(3, "1000", 4 [pid 20938] <... futex resumed>) = 1 [pid 20934] <... futex resumed>) = 0 [pid 20942] setpgid(0, 0 [pid 20939] <... write resumed>) = 4 [pid 20938] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20934] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20942] <... setpgid resumed>) = 0 [pid 20939] close(3 [pid 20938] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20934] <... futex resumed>) = 0 [pid 20942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20939] <... close resumed>) = 0 [pid 20938] write(5, NULL, 176 [pid 20934] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20942] <... openat resumed>) = 3 [pid 20941] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20939] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20938] <... write resumed>) = -1 EFAULT (Bad address) [pid 20942] write(3, "1000", 4 [pid 20941] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20939] <... futex resumed>) = 0 [pid 20938] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20942] <... write resumed>) = 4 [pid 20941] <... futex resumed>) = 1 [pid 20940] <... futex resumed>) = 0 [pid 20939] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20938] <... futex resumed>) = 1 [pid 20934] <... futex resumed>) = 0 [pid 20942] close(3 [pid 20941] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20940] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20939] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20938] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20934] exit_group(0 [pid 20942] <... close resumed>) = 0 [pid 20941] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20940] <... futex resumed>) = 0 [pid 20939] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20938] <... futex resumed>) = ? [pid 20934] <... exit_group resumed>) = ? [pid 20942] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20941] write(5, NULL, 176 [pid 20940] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20939] <... mprotect resumed>) = 0 [pid 20942] <... futex resumed>) = 0 [pid 20941] <... write resumed>) = -1 EFAULT (Bad address) [pid 20942] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20941] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20938] +++ exited with 0 +++ [pid 20934] +++ exited with 0 +++ [pid 20942] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20941] <... futex resumed>) = 1 [pid 20940] <... futex resumed>) = 0 [pid 20939] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20934, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20942] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20941] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20940] exit_group(0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20942] <... mprotect resumed>) = 0 [pid 20941] <... futex resumed>) = ? [pid 20940] <... exit_group resumed>) = ? [pid 20939] <... clone resumed>, parent_tid=[20943], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20943 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20942] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20941] +++ exited with 0 +++ [pid 20939] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20939] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20943 attached [pid 20943] set_robust_list(0x7f61a3ef39e0, 24 [pid 20940] +++ exited with 0 +++ [pid 20943] <... set_robust_list resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20940, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20943] mkdir("./file0", 0777 [pid 3606] <... openat resumed>) = 3 [pid 20942] <... clone resumed>, parent_tid=[20944], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20944 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20942] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20942] <... futex resumed>) = 0 [pid 3606] close(3 [pid 3601] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20944 attached [pid 20943] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20942] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... close resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] close(3 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20945 [pid 3601] <... close resumed>) = 0 [pid 20944] set_robust_list(0x7f61a3ef39e0, 24 [pid 20943] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20944] <... set_robust_list resumed>) = 0 [pid 20943] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20944] mkdir("./file0", 0777 [pid 20943] <... futex resumed>) = 1 [pid 20939] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20946 ./strace-static-x86_64: Process 20945 attached [pid 20944] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20943] pipe2( [pid 20939] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20946 attached [pid 20945] set_robust_list(0x555556ba76e0, 24 [pid 20944] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20943] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20939] <... futex resumed>) = 0 [pid 20944] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20943] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20944] <... futex resumed>) = 1 [pid 20943] <... futex resumed>) = 0 [pid 20942] <... futex resumed>) = 0 [pid 20944] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20943] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20942] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20944] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20942] <... futex resumed>) = 0 [pid 20944] pipe2( [pid 20942] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20946] set_robust_list(0x555556ba76e0, 24 [pid 20945] <... set_robust_list resumed>) = 0 [pid 20944] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20939] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20946] <... set_robust_list resumed>) = 0 [pid 20945] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20944] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20939] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20946] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20945] <... prctl resumed>) = 0 [pid 20944] <... futex resumed>) = 1 [pid 20942] <... futex resumed>) = 0 [pid 20939] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20946] <... prctl resumed>) = 0 [pid 20945] setpgid(0, 0 [pid 20944] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20943] <... futex resumed>) = 0 [pid 20942] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20939] <... futex resumed>) = 1 [pid 20946] setpgid(0, 0 [pid 20945] <... setpgid resumed>) = 0 [pid 20944] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20943] dup(4 [pid 20942] <... futex resumed>) = 0 [pid 20939] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20946] <... setpgid resumed>) = 0 [pid 20945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20944] dup(4 [pid 20943] <... dup resumed>) = 5 [pid 20942] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20945] <... openat resumed>) = 3 [pid 20944] <... dup resumed>) = 5 [pid 20943] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20946] <... openat resumed>) = 3 [pid 20945] write(3, "1000", 4 [pid 20944] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20943] <... futex resumed>) = 1 [pid 20939] <... futex resumed>) = 0 [pid 20946] write(3, "1000", 4 [pid 20945] <... write resumed>) = 4 [pid 20944] <... futex resumed>) = 1 [pid 20943] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20942] <... futex resumed>) = 0 [pid 20939] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20946] <... write resumed>) = 4 [pid 20945] close(3 [pid 20944] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20943] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20942] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20939] <... futex resumed>) = 0 [pid 20946] close(3 [pid 20945] <... close resumed>) = 0 [pid 20944] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20943] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20942] <... futex resumed>) = 0 [pid 20939] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20946] <... close resumed>) = 0 [pid 20945] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20944] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20946] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20945] <... futex resumed>) = 0 [pid 20942] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20946] <... futex resumed>) = 0 [pid 20945] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20946] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20945] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20946] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20945] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20946] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20945] <... mprotect resumed>) = 0 [pid 20946] <... mprotect resumed>) = 0 [pid 20945] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20946] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20945] <... clone resumed>, parent_tid=[20947], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20947 [pid 20946] <... clone resumed>, parent_tid=[20948], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20948 [pid 20945] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20946] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20945] <... futex resumed>) = 0 [pid 20946] <... futex resumed>) = 0 [pid 20945] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20946] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20948 attached [pid 20948] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20948] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20948] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20948] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20946] <... futex resumed>) = 0 [pid 20946] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20946] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20948] <... futex resumed>) = 1 [pid 20948] pipe2([3, 4], 0) = 0 [pid 20948] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20947 attached [pid 20944] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20943] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20944] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20943] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20948] <... futex resumed>) = 1 [pid 20947] set_robust_list(0x7f61a3ef39e0, 24 [pid 20946] <... futex resumed>) = 0 [pid 20946] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20948] dup(4 [pid 20946] <... futex resumed>) = 0 [pid 20946] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20948] <... dup resumed>) = 5 [pid 20948] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20946] <... futex resumed>) = 0 [pid 20948] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20946] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20939] <... futex resumed>) = 0 [pid 20943] <... futex resumed>) = 1 [pid 20948] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20946] <... futex resumed>) = 0 [pid 20939] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20948] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20946] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20943] write(5, NULL, 176 [pid 20939] <... futex resumed>) = 0 [pid 20939] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20944] <... futex resumed>) = 1 [pid 20942] <... futex resumed>) = 0 [pid 20943] <... write resumed>) = -1 EFAULT (Bad address) [pid 20942] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20944] write(5, NULL, 176 [pid 20943] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20942] <... futex resumed>) = 0 [pid 20944] <... write resumed>) = -1 EFAULT (Bad address) [pid 20942] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20944] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20947] <... set_robust_list resumed>) = 0 [pid 20944] <... futex resumed>) = 1 [pid 20943] <... futex resumed>) = 1 [pid 20942] <... futex resumed>) = 0 [pid 20939] <... futex resumed>) = 0 [pid 20947] mkdir("./file0", 0777 [pid 20944] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20943] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20942] exit_group(0 [pid 20939] exit_group(0 [pid 20947] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20944] <... futex resumed>) = ? [pid 20942] <... exit_group resumed>) = ? [pid 20939] <... exit_group resumed>) = ? [pid 20947] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20944] +++ exited with 0 +++ [pid 20943] <... futex resumed>) = ? [pid 20947] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20945] <... futex resumed>) = 0 [pid 20947] pipe2( [pid 20945] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20947] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20945] <... futex resumed>) = 0 [pid 20947] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20945] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20942] +++ exited with 0 +++ [pid 20947] <... futex resumed>) = 0 [pid 20945] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20942, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20947] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20945] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20947] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20945] <... futex resumed>) = 0 [pid 20947] dup(4 [pid 20945] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20947] <... dup resumed>) = 5 [pid 20947] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20945] <... futex resumed>) = 0 [pid 20947] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20945] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20947] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20945] <... futex resumed>) = 0 [pid 20947] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20945] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20943] +++ exited with 0 +++ [pid 20939] +++ exited with 0 +++ [pid 20948] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20948] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 20948] <... futex resumed>) = 1 [pid 20946] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 20948] write(5, NULL, 176 [pid 20946] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20939, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20948] <... write resumed>) = -1 EFAULT (Bad address) [pid 20946] <... futex resumed>) = 0 [pid 3607] close(3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20948] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20946] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20948] <... futex resumed>) = 0 [pid 20946] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20948] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20946] exit_group(0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20948] <... futex resumed>) = ? [pid 20946] <... exit_group resumed>) = ? [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20949 [pid 3604] close(3 [pid 20948] +++ exited with 0 +++ [pid 20946] +++ exited with 0 +++ [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20946, si_uid=0, si_status=0, si_utime=1, si_stime=1} --- [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3604] <... close resumed>) = 0 [pid 3601] close(3 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... close resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20950 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20951 ./strace-static-x86_64: Process 20951 attached [pid 20947] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20947] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20945] <... futex resumed>) = 0 [pid 20947] <... futex resumed>) = 1 [pid 20945] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20951] set_robust_list(0x555556ba76e0, 24 [pid 20947] write(5, NULL, 176 [pid 20945] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20950 attached ./strace-static-x86_64: Process 20949 attached [pid 20951] <... set_robust_list resumed>) = 0 [pid 20947] <... write resumed>) = -1 EFAULT (Bad address) [pid 20945] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20951] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20950] set_robust_list(0x555556ba76e0, 24 [pid 20949] set_robust_list(0x555556ba76e0, 24 [pid 20947] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20945] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20951] <... prctl resumed>) = 0 [pid 20950] <... set_robust_list resumed>) = 0 [pid 20949] <... set_robust_list resumed>) = 0 [pid 20947] <... futex resumed>) = 0 [pid 20945] exit_group(0 [pid 20951] setpgid(0, 0 [pid 20950] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20951] <... setpgid resumed>) = 0 [pid 20950] <... prctl resumed>) = 0 [pid 20951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20950] setpgid(0, 0 [pid 20951] <... openat resumed>) = 3 [pid 20950] <... setpgid resumed>) = 0 [pid 20951] write(3, "1000", 4 [pid 20950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20949] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20945] <... exit_group resumed>) = ? [pid 20951] <... write resumed>) = 4 [pid 20950] <... openat resumed>) = 3 [pid 20949] <... prctl resumed>) = 0 [pid 20947] +++ exited with 0 +++ [pid 20951] close(3 [pid 20950] write(3, "1000", 4 [pid 20949] setpgid(0, 0 [pid 20945] +++ exited with 0 +++ [pid 20951] <... close resumed>) = 0 [pid 20950] <... write resumed>) = 4 [pid 20949] <... setpgid resumed>) = 0 [pid 20951] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20950] close(3 [pid 20949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20945, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20951] <... futex resumed>) = 0 [pid 20950] <... close resumed>) = 0 [pid 20949] <... openat resumed>) = 3 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 20951] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20950] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20949] write(3, "1000", 4 [pid 3606] <... restart_syscall resumed>) = 0 [pid 20951] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20950] <... futex resumed>) = 0 [pid 20949] <... write resumed>) = 4 [pid 20951] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20950] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20949] close(3 [pid 20951] <... mprotect resumed>) = 0 [pid 20950] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20949] <... close resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20951] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20950] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20949] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20950] <... mprotect resumed>) = 0 [pid 20949] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20951] <... clone resumed>, parent_tid=[20952], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20952 [pid 20950] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20949] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20951] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20949] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20951] <... futex resumed>) = 0 [pid 20950] <... clone resumed>, parent_tid=[20953], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20953 [pid 20949] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] close(3./strace-static-x86_64: Process 20953 attached ./strace-static-x86_64: Process 20952 attached [pid 20951] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20950] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20949] <... mprotect resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20953] set_robust_list(0x7f61a3ef39e0, 24 [pid 20952] set_robust_list(0x7f61a3ef39e0, 24 [pid 20950] <... futex resumed>) = 0 [pid 20949] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20953] <... set_robust_list resumed>) = 0 [pid 20952] <... set_robust_list resumed>) = 0 [pid 20950] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20953] mkdir("./file0", 0777 [pid 20952] mkdir("./file0", 0777 [pid 20949] <... clone resumed>, parent_tid=[20954], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20954 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20955 [pid 20953] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20952] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20949] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20953] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20952] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20953] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20952] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20953] <... futex resumed>) = 1 [pid 20952] <... futex resumed>) = 1 [pid 20951] <... futex resumed>) = 0 [pid 20950] <... futex resumed>) = 0 [pid 20953] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20952] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20951] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20950] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20949] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20955 attached ./strace-static-x86_64: Process 20954 attached [pid 20953] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20952] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20951] <... futex resumed>) = 0 [pid 20950] <... futex resumed>) = 0 [pid 20949] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20955] set_robust_list(0x555556ba76e0, 24 [pid 20954] set_robust_list(0x7f61a3ef39e0, 24 [pid 20953] pipe2( [pid 20952] pipe2( [pid 20951] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20950] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20953] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20952] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20953] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20952] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20953] <... futex resumed>) = 1 [pid 20952] <... futex resumed>) = 1 [pid 20950] <... futex resumed>) = 0 [pid 20953] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20952] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20951] <... futex resumed>) = 0 [pid 20950] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20953] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20951] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20950] <... futex resumed>) = 0 [pid 20953] dup(4 [pid 20952] <... futex resumed>) = 0 [pid 20951] <... futex resumed>) = 1 [pid 20950] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20953] <... dup resumed>) = 5 [pid 20952] dup(4 [pid 20951] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20953] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20952] <... dup resumed>) = 5 [pid 20953] <... futex resumed>) = 1 [pid 20952] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20950] <... futex resumed>) = 0 [pid 20953] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20952] <... futex resumed>) = 1 [pid 20951] <... futex resumed>) = 0 [pid 20950] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20953] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20952] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20951] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20950] <... futex resumed>) = 0 [pid 20953] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20952] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20951] <... futex resumed>) = 0 [pid 20950] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20955] <... set_robust_list resumed>) = 0 [pid 20954] <... set_robust_list resumed>) = 0 [pid 20955] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20954] mkdir("./file0", 0777 [pid 20952] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20951] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20955] <... prctl resumed>) = 0 [pid 20954] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20955] setpgid(0, 0 [pid 20954] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20955] <... setpgid resumed>) = 0 [pid 20954] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20954] <... futex resumed>) = 1 [pid 20949] <... futex resumed>) = 0 [pid 20955] <... openat resumed>) = 3 [pid 20954] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20949] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20955] write(3, "1000", 4 [pid 20954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20949] <... futex resumed>) = 0 [pid 20955] <... write resumed>) = 4 [pid 20954] pipe2( [pid 20949] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20955] close(3 [pid 20954] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20955] <... close resumed>) = 0 [pid 20954] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20955] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20954] <... futex resumed>) = 1 [pid 20949] <... futex resumed>) = 0 [pid 20955] <... futex resumed>) = 0 [pid 20954] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20949] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20955] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20949] <... futex resumed>) = 0 [pid 20955] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20954] dup(4 [pid 20949] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20955] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20954] <... dup resumed>) = 5 [pid 20955] <... mprotect resumed>) = 0 [pid 20954] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20955] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20954] <... futex resumed>) = 1 [pid 20949] <... futex resumed>) = 0 [pid 20954] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20949] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20955] <... clone resumed>, parent_tid=[20956], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20956 [pid 20954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20949] <... futex resumed>) = 0 [pid 20955] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20954] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20949] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20955] <... futex resumed>) = 0 [pid 20952] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20955] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20956 attached [pid 20956] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20956] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20956] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20956] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20955] <... futex resumed>) = 0 [pid 20955] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20955] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20956] <... futex resumed>) = 1 [pid 20956] pipe2( [pid 20953] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20952] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20956] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20954] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20953] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20952] <... futex resumed>) = 1 [pid 20951] <... futex resumed>) = 0 [pid 20956] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20954] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20951] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20954] <... futex resumed>) = 1 [pid 20953] <... futex resumed>) = 1 [pid 20952] write(5, NULL, 176 [pid 20951] <... futex resumed>) = 0 [pid 20950] <... futex resumed>) = 0 [pid 20949] <... futex resumed>) = 0 [pid 20956] <... futex resumed>) = 1 [pid 20955] <... futex resumed>) = 0 [pid 20954] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20953] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20952] <... write resumed>) = -1 EFAULT (Bad address) [pid 20951] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20950] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20949] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20955] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20956] dup(4 [pid 20955] <... futex resumed>) = 0 [pid 20954] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20953] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20952] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20950] <... futex resumed>) = 0 [pid 20949] <... futex resumed>) = 0 [pid 20956] <... dup resumed>) = 5 [pid 20955] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20954] write(5, NULL, 176 [pid 20953] write(5, NULL, 176 [pid 20952] <... futex resumed>) = 1 [pid 20951] <... futex resumed>) = 0 [pid 20950] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20949] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20956] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20954] <... write resumed>) = -1 EFAULT (Bad address) [pid 20953] <... write resumed>) = -1 EFAULT (Bad address) [pid 20952] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20951] exit_group(0 [pid 20956] <... futex resumed>) = 1 [pid 20955] <... futex resumed>) = 0 [pid 20954] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20953] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20952] <... futex resumed>) = ? [pid 20951] <... exit_group resumed>) = ? [pid 20956] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20955] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20954] <... futex resumed>) = 1 [pid 20953] <... futex resumed>) = 1 [pid 20952] +++ exited with 0 +++ [pid 20950] <... futex resumed>) = 0 [pid 20949] <... futex resumed>) = 0 [pid 20956] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20955] <... futex resumed>) = 0 [pid 20954] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20953] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20951] +++ exited with 0 +++ [pid 20950] exit_group(0 [pid 20949] exit_group(0 [pid 20956] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20955] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20954] <... futex resumed>) = ? [pid 20953] <... futex resumed>) = ? [pid 20950] <... exit_group resumed>) = ? [pid 20949] <... exit_group resumed>) = ? [pid 20954] +++ exited with 0 +++ [pid 20953] +++ exited with 0 +++ [pid 20950] +++ exited with 0 +++ [pid 20949] +++ exited with 0 +++ [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20951, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20949, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20950, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3601] <... openat resumed>) = 3 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3607] <... restart_syscall resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... openat resumed>) = 3 [pid 3604] <... openat resumed>) = 3 ./strace-static-x86_64: Process 20957 attached [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20957] set_robust_list(0x555556ba76e0, 24 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20957 [pid 20957] <... set_robust_list resumed>) = 0 [pid 3607] close(3 [pid 3604] close(3 [pid 20957] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3607] <... close resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 20957] <... prctl resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20957] setpgid(0, 0) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20958 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20959 [pid 20957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20957] write(3, "1000", 4) = 4 [pid 20957] close(3) = 0 [pid 20957] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20957] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20957] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 20958 attached [pid 20957] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20958] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20957] <... clone resumed>, parent_tid=[20960], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20960 [pid 20958] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20957] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20958] <... prctl resumed>) = 0 [pid 20957] <... futex resumed>) = 0 [pid 20958] setpgid(0, 0 [pid 20957] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20958] <... setpgid resumed>) = 0 [pid 20958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20958] write(3, "1000", 4) = 4 [pid 20958] close(3) = 0 ./strace-static-x86_64: Process 20960 attached [pid 20958] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20960] set_robust_list(0x7f61a3ef39e0, 24 [pid 20958] <... futex resumed>) = 0 [pid 20960] <... set_robust_list resumed>) = 0 [pid 20958] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20960] mkdir("./file0", 0777 [pid 20958] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20960] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20958] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20960] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20958] <... mprotect resumed>) = 0 [pid 20960] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20958] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20960] <... futex resumed>) = 1 [pid 20957] <... futex resumed>) = 0 [pid 20960] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20958] <... clone resumed>, parent_tid=[20961], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20961 [pid 20957] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20960] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20958] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20957] <... futex resumed>) = 0 [pid 20960] pipe2( [pid 20958] <... futex resumed>) = 0 [pid 20957] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20960] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20958] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20960] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20957] <... futex resumed>) = 0 [pid 20960] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20957] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20960] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20957] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20961 attached [pid 20960] dup(4 [pid 20957] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20961] set_robust_list(0x7f61a3ef39e0, 24 [pid 20960] <... dup resumed>) = 5 [pid 20961] <... set_robust_list resumed>) = 0 [pid 20960] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20961] mkdir("./file0", 0777 [pid 20960] <... futex resumed>) = 1 [pid 20957] <... futex resumed>) = 0 [pid 20961] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20960] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20957] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20961] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20960] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20957] <... futex resumed>) = 0 [pid 20961] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20960] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20957] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20959 attached [pid 20961] <... futex resumed>) = 1 [pid 20958] <... futex resumed>) = 0 [pid 20961] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20958] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20961] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20958] <... futex resumed>) = 0 [pid 20961] pipe2( [pid 20958] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20961] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20961] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20958] <... futex resumed>) = 0 [pid 20961] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20958] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20961] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20958] <... futex resumed>) = 0 [pid 20961] dup(4 [pid 20958] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20961] <... dup resumed>) = 5 [pid 20961] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20959] set_robust_list(0x555556ba76e0, 24 [pid 20961] <... futex resumed>) = 1 [pid 20959] <... set_robust_list resumed>) = 0 [pid 20958] <... futex resumed>) = 0 [pid 20961] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20958] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20961] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20959] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20958] <... futex resumed>) = 0 [pid 20961] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20958] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20959] <... prctl resumed>) = 0 [pid 20956] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20959] setpgid(0, 0 [pid 20956] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20959] <... setpgid resumed>) = 0 [pid 20956] <... futex resumed>) = 1 [pid 20955] <... futex resumed>) = 0 [pid 20959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20956] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20955] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20959] <... openat resumed>) = 3 [pid 20956] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20955] <... futex resumed>) = 0 [pid 20959] write(3, "1000", 4 [pid 20956] write(5, NULL, 176 [pid 20955] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20959] <... write resumed>) = 4 [pid 20956] <... write resumed>) = -1 EFAULT (Bad address) [pid 20959] close(3 [pid 20956] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20959] <... close resumed>) = 0 [pid 20956] <... futex resumed>) = 1 [pid 20955] <... futex resumed>) = 0 [pid 20959] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20956] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20955] exit_group(0 [pid 20959] <... futex resumed>) = 0 [pid 20956] <... futex resumed>) = ? [pid 20955] <... exit_group resumed>) = ? [pid 20959] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20956] +++ exited with 0 +++ [pid 20955] +++ exited with 0 +++ [pid 20959] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20959] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20959] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 20962 attached [pid 20962] set_robust_list(0x7f61a3ef39e0, 24 [pid 20961] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20959] <... clone resumed>, parent_tid=[20962], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20962 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20955, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20962] <... set_robust_list resumed>) = 0 [pid 20961] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20960] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20959] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20962] mkdir("./file0", 0777 [pid 20961] <... futex resumed>) = 1 [pid 20960] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20959] <... futex resumed>) = 0 [pid 20958] <... futex resumed>) = 0 [pid 20962] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20961] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20960] <... futex resumed>) = 1 [pid 20959] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20958] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20957] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20962] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20961] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20960] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20958] <... futex resumed>) = 0 [pid 20957] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20962] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20961] write(5, NULL, 176 [pid 20960] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20958] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20957] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20962] <... futex resumed>) = 1 [pid 20961] <... write resumed>) = -1 EFAULT (Bad address) [pid 20960] write(5, NULL, 176 [pid 20959] <... futex resumed>) = 0 [pid 20957] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 20962] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20961] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20960] <... write resumed>) = -1 EFAULT (Bad address) [pid 20959] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 20962] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20961] <... futex resumed>) = 1 [pid 20960] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20958] <... futex resumed>) = 0 [pid 20962] pipe2( [pid 20961] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20960] <... futex resumed>) = 1 [pid 20958] exit_group(0 [pid 20957] <... futex resumed>) = 0 [pid 20962] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20961] <... futex resumed>) = ? [pid 20960] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20958] <... exit_group resumed>) = ? [pid 20957] exit_group(0 [pid 20962] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20961] +++ exited with 0 +++ [pid 20960] <... futex resumed>) = ? [pid 20958] +++ exited with 0 +++ [pid 20957] <... exit_group resumed>) = ? [pid 20962] <... futex resumed>) = 0 [pid 20960] +++ exited with 0 +++ [pid 20957] +++ exited with 0 +++ [pid 20962] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 20959] <... futex resumed>) = 1 [pid 20962] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20959] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 20959] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20962] <... futex resumed>) = 0 [pid 20959] <... futex resumed>) = 1 [pid 20962] dup(4 [pid 20959] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20962] <... dup resumed>) = 5 [pid 20962] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20959] <... futex resumed>) = 0 [pid 20962] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20959] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20962] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20959] <... futex resumed>) = 0 [pid 20962] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20959] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20957, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 20963 attached [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20958, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20963 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20963] set_robust_list(0x555556ba76e0, 24 [pid 20962] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] <... openat resumed>) = 3 [pid 20963] <... set_robust_list resumed>) = 0 [pid 20962] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20959] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20963] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20962] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20959] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20963] <... prctl resumed>) = 0 [pid 20962] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20959] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3601] close(3 [pid 20963] setpgid(0, 0 [pid 20962] write(5, NULL, 176 [pid 20959] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... close resumed>) = 0 [pid 20963] <... setpgid resumed>) = 0 [pid 20962] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] close(3 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20962] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 20963] <... openat resumed>) = 3 [pid 20962] <... futex resumed>) = 1 [pid 20959] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20963] write(3, "1000", 4 [pid 20962] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20959] exit_group(0 [pid 20963] <... write resumed>) = 4 [pid 20962] <... futex resumed>) = ? [pid 20959] <... exit_group resumed>) = ? [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20964 [pid 20963] close(3 [pid 20962] +++ exited with 0 +++ [pid 20959] +++ exited with 0 +++ [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20965 [pid 20963] <... close resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20959, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20963] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 20963] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 20963] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20963] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 20965 attached ./strace-static-x86_64: Process 20964 attached [pid 20963] <... mprotect resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20963] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20965] set_robust_list(0x555556ba76e0, 24 [pid 20964] set_robust_list(0x555556ba76e0, 24 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20963] <... clone resumed>, parent_tid=[20966], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20966 [pid 3604] close(3 [pid 20963] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 20963] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20963] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20967 ./strace-static-x86_64: Process 20966 attached [pid 20966] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20965] <... set_robust_list resumed>) = 0 [pid 20964] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 20967 attached [pid 20966] mkdir("./file0", 0777 [pid 20965] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20964] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20965] <... prctl resumed>) = 0 [pid 20964] <... prctl resumed>) = 0 [pid 20966] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20967] set_robust_list(0x555556ba76e0, 24 [pid 20965] setpgid(0, 0 [pid 20966] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20964] setpgid(0, 0 [pid 20967] <... set_robust_list resumed>) = 0 [pid 20966] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20965] <... setpgid resumed>) = 0 [pid 20964] <... setpgid resumed>) = 0 [pid 20967] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20966] <... futex resumed>) = 1 [pid 20965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20963] <... futex resumed>) = 0 [pid 20967] <... prctl resumed>) = 0 [pid 20966] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20965] <... openat resumed>) = 3 [pid 20964] <... openat resumed>) = 3 [pid 20963] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20967] setpgid(0, 0 [pid 20966] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20965] write(3, "1000", 4 [pid 20964] write(3, "1000", 4 [pid 20963] <... futex resumed>) = 0 [pid 20967] <... setpgid resumed>) = 0 [pid 20966] pipe2( [pid 20965] <... write resumed>) = 4 [pid 20964] <... write resumed>) = 4 [pid 20963] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20966] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20965] close(3 [pid 20964] close(3 [pid 20967] <... openat resumed>) = 3 [pid 20966] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20965] <... close resumed>) = 0 [pid 20964] <... close resumed>) = 0 [pid 20967] write(3, "1000", 4 [pid 20966] <... futex resumed>) = 1 [pid 20965] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20964] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20963] <... futex resumed>) = 0 [pid 20967] <... write resumed>) = 4 [pid 20966] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20965] <... futex resumed>) = 0 [pid 20964] <... futex resumed>) = 0 [pid 20963] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20967] close(3 [pid 20966] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20965] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20964] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20963] <... futex resumed>) = 0 [pid 20967] <... close resumed>) = 0 [pid 20966] dup(4 [pid 20965] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20964] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20963] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20967] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20966] <... dup resumed>) = 5 [pid 20965] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20964] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20967] <... futex resumed>) = 0 [pid 20966] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20965] <... mprotect resumed>) = 0 [pid 20964] <... mprotect resumed>) = 0 [pid 20967] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20966] <... futex resumed>) = 1 [pid 20965] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20964] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20963] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20968 attached [pid 20967] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20966] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20963] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20969 attached [pid 20967] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20966] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20965] <... clone resumed>, parent_tid=[20968], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20968 [pid 20964] <... clone resumed>, parent_tid=[20969], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20969 [pid 20963] <... futex resumed>) = 0 [pid 20968] set_robust_list(0x7f61a3ef39e0, 24 [pid 20965] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20964] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20965] <... futex resumed>) = 0 [pid 20964] <... futex resumed>) = 0 [pid 20965] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20964] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20969] set_robust_list(0x7f61a3ef39e0, 24 [pid 20968] <... set_robust_list resumed>) = 0 [pid 20967] <... mprotect resumed>) = 0 [pid 20966] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20963] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20969] <... set_robust_list resumed>) = 0 [pid 20968] mkdir("./file0", 0777 [pid 20967] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20969] mkdir("./file0", 0777 [pid 20968] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20969] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20968] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20967] <... clone resumed>, parent_tid=[20970], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20970 [pid 20969] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20968] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20967] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20969] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20968] <... futex resumed>) = 1 [pid 20967] <... futex resumed>) = 0 [pid 20965] <... futex resumed>) = 0 [pid 20969] <... futex resumed>) = 1 [pid 20968] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20967] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20965] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20964] <... futex resumed>) = 0 [pid 20969] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20965] <... futex resumed>) = 0 [pid 20964] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20970 attached [pid 20969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20968] pipe2( [pid 20966] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20965] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20964] <... futex resumed>) = 0 [pid 20970] set_robust_list(0x7f61a3ef39e0, 24 [pid 20969] pipe2( [pid 20968] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20966] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20964] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20970] <... set_robust_list resumed>) = 0 [pid 20969] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20968] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20966] <... futex resumed>) = 1 [pid 20963] <... futex resumed>) = 0 [pid 20970] mkdir("./file0", 0777 [pid 20969] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20968] <... futex resumed>) = 1 [pid 20966] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20965] <... futex resumed>) = 0 [pid 20963] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20970] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20969] <... futex resumed>) = 1 [pid 20968] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20966] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20965] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20964] <... futex resumed>) = 0 [pid 20963] <... futex resumed>) = 0 [pid 20970] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20969] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20966] write(5, NULL, 176 [pid 20965] <... futex resumed>) = 0 [pid 20964] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20963] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20970] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20968] dup(4 [pid 20966] <... write resumed>) = -1 EFAULT (Bad address) [pid 20965] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20964] <... futex resumed>) = 0 [pid 20970] <... futex resumed>) = 1 [pid 20969] dup(4 [pid 20968] <... dup resumed>) = 5 [pid 20967] <... futex resumed>) = 0 [pid 20966] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20964] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20970] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20969] <... dup resumed>) = 5 [pid 20968] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20967] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20966] <... futex resumed>) = 1 [pid 20963] <... futex resumed>) = 0 [pid 20970] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20969] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20968] <... futex resumed>) = 1 [pid 20967] <... futex resumed>) = 0 [pid 20966] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20965] <... futex resumed>) = 0 [pid 20963] exit_group(0 [pid 20970] pipe2( [pid 20969] <... futex resumed>) = 1 [pid 20968] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20967] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20966] <... futex resumed>) = ? [pid 20965] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20964] <... futex resumed>) = 0 [pid 20963] <... exit_group resumed>) = ? [pid 20970] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20969] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20968] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20966] +++ exited with 0 +++ [pid 20965] <... futex resumed>) = 0 [pid 20964] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20970] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20964] <... futex resumed>) = 0 [pid 20970] <... futex resumed>) = 1 [pid 20964] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20963] +++ exited with 0 +++ [pid 20969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20970] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20969] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20968] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20967] <... futex resumed>) = 0 [pid 20965] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20963, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3606] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 20967] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 20970] <... futex resumed>) = 0 [pid 20967] <... futex resumed>) = 1 [pid 3606] <... close resumed>) = 0 [pid 20970] dup(4 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20970] <... dup resumed>) = 5 [pid 20967] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20970] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20967] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20971 [pid 20970] <... futex resumed>) = 0 [pid 20967] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20970] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20967] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20971 attached [pid 20970] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20969] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20968] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20967] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20970] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20969] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20968] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20967] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20970] <... futex resumed>) = 0 [pid 20969] <... futex resumed>) = 1 [pid 20968] <... futex resumed>) = 1 [pid 20967] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20965] <... futex resumed>) = 0 [pid 20964] <... futex resumed>) = 0 [pid 20971] set_robust_list(0x555556ba76e0, 24 [pid 20970] write(5, NULL, 176 [pid 20969] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20964] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20970] <... write resumed>) = -1 EFAULT (Bad address) [pid 20964] <... futex resumed>) = 0 [pid 20970] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20964] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20970] <... futex resumed>) = 0 [pid 20970] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL) = 0 [pid 20969] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20968] write(5, NULL, 176 [pid 20967] <... futex resumed>) = 1 [pid 20965] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20971] <... set_robust_list resumed>) = 0 [pid 20970] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20969] write(5, NULL, 176 [pid 20968] <... write resumed>) = -1 EFAULT (Bad address) [pid 20967] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20965] <... futex resumed>) = 0 [pid 20971] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20969] <... write resumed>) = -1 EFAULT (Bad address) [pid 20968] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20967] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20965] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20971] <... prctl resumed>) = 0 [pid 20969] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20968] <... futex resumed>) = 0 [pid 20967] exit_group(0 [pid 20965] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20971] setpgid(0, 0 [pid 20970] <... futex resumed>) = ? [pid 20969] <... futex resumed>) = 1 [pid 20968] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20967] <... exit_group resumed>) = ? [pid 20965] exit_group(0 [pid 20964] <... futex resumed>) = 0 [pid 20971] <... setpgid resumed>) = 0 [pid 20970] +++ exited with 0 +++ [pid 20969] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20964] exit_group(0) = ? [pid 20967] +++ exited with 0 +++ [pid 20965] <... exit_group resumed>) = ? [pid 20968] <... futex resumed>) = ? [pid 20969] <... futex resumed>) = ? [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20967, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 20968] +++ exited with 0 +++ [pid 20965] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20965, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20969] +++ exited with 0 +++ [pid 20964] +++ exited with 0 +++ [pid 3607] <... restart_syscall resumed>) = 0 [pid 20971] <... openat resumed>) = 3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20964, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20971] write(3, "1000", 4 [pid 3604] <... openat resumed>) = 3 [pid 20971] <... write resumed>) = 4 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20971] close(3 [pid 3607] <... openat resumed>) = 3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20971] <... close resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] close(3 [pid 3601] <... openat resumed>) = 3 [pid 20971] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... close resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20971] <... futex resumed>) = 0 [pid 3607] close(3 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20971] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3607] <... close resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20971] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] close(3 [pid 20971] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20972 [pid 3601] <... close resumed>) = 0 [pid 20971] <... mprotect resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20973 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20971] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20974 [pid 20971] <... clone resumed>, parent_tid=[20975], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20975 [pid 20971] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 20972 attached [pid 20971] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20972] set_robust_list(0x555556ba76e0, 24./strace-static-x86_64: Process 20974 attached ./strace-static-x86_64: Process 20973 attached ) = 0 [pid 20972] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20974] set_robust_list(0x555556ba76e0, 24 [pid 20973] set_robust_list(0x555556ba76e0, 24 [pid 20972] <... prctl resumed>) = 0 [pid 20974] <... set_robust_list resumed>) = 0 [pid 20973] <... set_robust_list resumed>) = 0 [pid 20972] setpgid(0, 0 [pid 20974] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20973] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20972] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 20975 attached [pid 20974] <... prctl resumed>) = 0 [pid 20973] <... prctl resumed>) = 0 [pid 20972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20975] set_robust_list(0x7f61a3ef39e0, 24 [pid 20974] setpgid(0, 0 [pid 20973] setpgid(0, 0 [pid 20975] <... set_robust_list resumed>) = 0 [pid 20974] <... setpgid resumed>) = 0 [pid 20973] <... setpgid resumed>) = 0 [pid 20975] mkdir("./file0", 0777 [pid 20974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20975] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20974] <... openat resumed>) = 3 [pid 20973] <... openat resumed>) = 3 [pid 20975] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20974] write(3, "1000", 4 [pid 20973] write(3, "1000", 4 [pid 20975] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20974] <... write resumed>) = 4 [pid 20973] <... write resumed>) = 4 [pid 20972] <... openat resumed>) = 3 [pid 20975] <... futex resumed>) = 1 [pid 20974] close(3 [pid 20973] close(3 [pid 20972] write(3, "1000", 4 [pid 20971] <... futex resumed>) = 0 [pid 20975] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20974] <... close resumed>) = 0 [pid 20973] <... close resumed>) = 0 [pid 20971] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20972] <... write resumed>) = 4 [pid 20975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20974] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20973] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20972] close(3 [pid 20971] <... futex resumed>) = 0 [pid 20975] pipe2( [pid 20974] <... futex resumed>) = 0 [pid 20973] <... futex resumed>) = 0 [pid 20972] <... close resumed>) = 0 [pid 20971] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20975] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20974] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20973] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20972] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20975] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20974] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20973] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20972] <... futex resumed>) = 0 [pid 20975] <... futex resumed>) = 1 [pid 20974] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20973] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20972] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20971] <... futex resumed>) = 0 [pid 20975] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20974] <... mprotect resumed>) = 0 [pid 20973] <... mprotect resumed>) = 0 [pid 20972] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20971] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20974] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20973] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20972] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20971] <... futex resumed>) = 0 [pid 20975] dup(4 [pid 20972] <... mprotect resumed>) = 0 [pid 20971] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20976 attached [pid 20975] <... dup resumed>) = 5 [pid 20974] <... clone resumed>, parent_tid=[20976], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20976 [pid 20973] <... clone resumed>, parent_tid=[20977], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20977 [pid 20972] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20975] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20974] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20973] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20976] set_robust_list(0x7f61a3ef39e0, 24./strace-static-x86_64: Process 20977 attached [pid 20975] <... futex resumed>) = 1 [pid 20974] <... futex resumed>) = 0 [pid 20973] <... futex resumed>) = 0 [pid 20972] <... clone resumed>, parent_tid=[20978], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20978 [pid 20971] <... futex resumed>) = 0 [pid 20975] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20974] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20973] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20972] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20971] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20972] <... futex resumed>) = 0 [pid 20971] <... futex resumed>) = 0 [pid 20976] <... set_robust_list resumed>) = 0 [pid 20975] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20972] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20971] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20976] mkdir("./file0", 0777./strace-static-x86_64: Process 20978 attached [pid 20978] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20978] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20978] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20978] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20972] <... futex resumed>) = 0 [pid 20978] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20972] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20978] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20972] <... futex resumed>) = 0 [pid 20978] pipe2( [pid 20972] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20978] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20976] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20978] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20976] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20972] <... futex resumed>) = 0 [pid 20978] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20972] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20976] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20978] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20972] <... futex resumed>) = 0 [pid 20978] dup(4 [pid 20972] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20978] <... dup resumed>) = 5 [pid 20978] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20972] <... futex resumed>) = 0 [pid 20978] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20972] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20978] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20972] <... futex resumed>) = 0 [pid 20978] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20972] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20977] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 20977] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 20977] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20977] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20973] <... futex resumed>) = 0 [pid 20977] pipe2( [pid 20976] <... futex resumed>) = 1 [pid 20974] <... futex resumed>) = 0 [pid 20973] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20977] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20976] pipe2( [pid 20974] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20973] <... futex resumed>) = 0 [pid 20977] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20976] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20974] <... futex resumed>) = 0 [pid 20973] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20977] <... futex resumed>) = 0 [pid 20976] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20974] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20973] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20977] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20976] <... futex resumed>) = 0 [pid 20974] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20976] dup(4 [pid 20975] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20974] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20973] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20976] <... dup resumed>) = 5 [pid 20975] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20974] <... futex resumed>) = 0 [pid 20973] <... futex resumed>) = 0 [pid 20977] dup(4 [pid 20976] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20975] <... futex resumed>) = 1 [pid 20974] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20973] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20971] <... futex resumed>) = 0 [pid 20977] <... dup resumed>) = 5 [pid 20976] <... futex resumed>) = 0 [pid 20975] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20974] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20971] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20977] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20976] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20974] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20971] <... futex resumed>) = 0 [pid 20977] <... futex resumed>) = 1 [pid 20974] <... futex resumed>) = 0 [pid 20973] <... futex resumed>) = 0 [pid 20971] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20977] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20975] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20974] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20973] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20975] write(5, NULL, 176 [pid 20973] <... futex resumed>) = 0 [pid 20977] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20973] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20978] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20975] <... write resumed>) = -1 EFAULT (Bad address) [pid 20978] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20975] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20978] <... futex resumed>) = 1 [pid 20975] <... futex resumed>) = 1 [pid 20972] <... futex resumed>) = 0 [pid 20971] <... futex resumed>) = 0 [pid 20978] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20977] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20975] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20972] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20971] exit_group(0 [pid 20978] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20977] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20976] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20975] <... futex resumed>) = ? [pid 20972] <... futex resumed>) = 0 [pid 20971] <... exit_group resumed>) = ? [pid 20978] write(5, NULL, 176 [pid 20977] <... futex resumed>) = 1 [pid 20976] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20975] +++ exited with 0 +++ [pid 20973] <... futex resumed>) = 0 [pid 20972] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20977] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20976] <... futex resumed>) = 1 [pid 20973] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20978] <... write resumed>) = -1 EFAULT (Bad address) [pid 20977] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20976] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20974] <... futex resumed>) = 0 [pid 20973] <... futex resumed>) = 0 [pid 20971] +++ exited with 0 +++ [pid 20978] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20977] write(5, NULL, 176 [pid 20974] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20973] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20971, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20978] <... futex resumed>) = 1 [pid 20977] <... write resumed>) = -1 EFAULT (Bad address) [pid 20976] <... futex resumed>) = 0 [pid 20974] <... futex resumed>) = 1 [pid 20972] <... futex resumed>) = 0 [pid 20978] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20977] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20976] write(5, NULL, 176 [pid 20974] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20972] exit_group(0 [pid 20977] <... futex resumed>) = 1 [pid 20978] <... futex resumed>) = ? [pid 20976] <... write resumed>) = -1 EFAULT (Bad address) [pid 20973] <... futex resumed>) = 0 [pid 20972] <... exit_group resumed>) = ? [pid 20978] +++ exited with 0 +++ [pid 20977] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20976] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20973] exit_group(0 [pid 20977] <... futex resumed>) = ? [pid 20976] <... futex resumed>) = 1 [pid 20973] <... exit_group resumed>) = ? [pid 20977] +++ exited with 0 +++ [pid 20976] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20974] <... futex resumed>) = 0 [pid 20972] +++ exited with 0 +++ [pid 20974] exit_group(0 [pid 20973] +++ exited with 0 +++ [pid 20976] <... futex resumed>) = ? [pid 20974] <... exit_group resumed>) = ? [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20973, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20972, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20976] +++ exited with 0 +++ [pid 3606] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20974] +++ exited with 0 +++ [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] <... openat resumed>) = 3 [pid 3606] close(3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] <... close resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] close(3) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20979 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 20980 ./strace-static-x86_64: Process 20979 attached [pid 20979] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20979] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20979] setpgid(0, 0) = 0 [pid 20979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20979] write(3, "1000", 4) = 4 [pid 20979] close(3) = 0 [pid 20979] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20979] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20979] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20979] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] <... openat resumed>) = 3 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20974, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20979] <... clone resumed>, parent_tid=[20981], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20981 [pid 20979] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20979] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20981 attached [pid 20981] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... restart_syscall resumed>) = 0 [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20981] mkdir("./file0", 0777 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20982 [pid 3601] <... openat resumed>) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 20981] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20981] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20981] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20979] <... futex resumed>) = 0 [pid 20979] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20979] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20983 [pid 20981] <... futex resumed>) = 1 ./strace-static-x86_64: Process 20980 attached [pid 20981] pipe2([3, 4], 0) = 0 [pid 20980] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20981] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20979] <... futex resumed>) = 0 [pid 20981] dup(4 [pid 20979] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20981] <... dup resumed>) = 5 [pid 20979] <... futex resumed>) = 0 [pid 20981] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20980] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20979] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20981] <... futex resumed>) = 0 [pid 20979] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20980] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 20982 attached [pid 20981] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20979] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20980] setpgid(0, 0./strace-static-x86_64: Process 20983 attached [pid 20982] set_robust_list(0x555556ba76e0, 24 [pid 20979] <... futex resumed>) = 0 [pid 20983] set_robust_list(0x555556ba76e0, 24 [pid 20982] <... set_robust_list resumed>) = 0 [pid 20980] <... setpgid resumed>) = 0 [pid 20979] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20983] <... set_robust_list resumed>) = 0 [pid 20982] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20982] <... prctl resumed>) = 0 [pid 20983] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20982] setpgid(0, 0 [pid 20980] <... openat resumed>) = 3 [pid 20983] <... prctl resumed>) = 0 [pid 20982] <... setpgid resumed>) = 0 [pid 20980] write(3, "1000", 4 [pid 20983] setpgid(0, 0 [pid 20982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20980] <... write resumed>) = 4 [pid 20983] <... setpgid resumed>) = 0 [pid 20982] <... openat resumed>) = 3 [pid 20980] close(3 [pid 20982] write(3, "1000", 4 [pid 20981] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20982] <... write resumed>) = 4 [pid 20981] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20982] close(3 [pid 20981] <... futex resumed>) = 1 [pid 20980] <... close resumed>) = 0 [pid 20979] <... futex resumed>) = 0 [pid 20982] <... close resumed>) = 0 [pid 20981] write(5, NULL, 176 [pid 20980] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20979] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20983] <... openat resumed>) = 3 [pid 20982] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20981] <... write resumed>) = -1 EFAULT (Bad address) [pid 20980] <... futex resumed>) = 0 [pid 20979] <... futex resumed>) = 0 [pid 20983] write(3, "1000", 4 [pid 20982] <... futex resumed>) = 0 [pid 20981] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20980] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20979] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20983] <... write resumed>) = 4 [pid 20982] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20981] <... futex resumed>) = 0 [pid 20980] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20979] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20983] close(3 [pid 20982] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20981] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20980] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20979] exit_group(0 [pid 20983] <... close resumed>) = 0 [pid 20982] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20981] <... futex resumed>) = ? [pid 20980] <... mprotect resumed>) = 0 [pid 20979] <... exit_group resumed>) = ? [pid 20983] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20982] <... mprotect resumed>) = 0 [pid 20981] +++ exited with 0 +++ [pid 20980] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20979] +++ exited with 0 +++ [pid 20983] <... futex resumed>) = 0 [pid 20982] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20979, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 20983] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20980] <... clone resumed>, parent_tid=[20984], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20984 [pid 20983] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20982] <... clone resumed>, parent_tid=[20985], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20985 [pid 20980] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20983] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20982] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20980] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20983] <... mprotect resumed>) = 0 [pid 20982] <... futex resumed>) = 0 [pid 20980] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... openat resumed>) = 3 [pid 20983] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20982] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 20983] <... clone resumed>, parent_tid=[20986], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20986 [pid 3606] close(3./strace-static-x86_64: Process 20984 attached [pid 20983] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 ./strace-static-x86_64: Process 20985 attached [pid 20984] set_robust_list(0x7f61a3ef39e0, 24 [pid 20983] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20985] set_robust_list(0x7f61a3ef39e0, 24 [pid 20984] <... set_robust_list resumed>) = 0 [pid 20983] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20985] <... set_robust_list resumed>) = 0 [pid 20984] mkdir("./file0", 0777 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20987 [pid 20985] mkdir("./file0", 0777 [pid 20984] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20985] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20984] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20985] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20984] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 20987 attached [pid 20985] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20984] <... futex resumed>) = 1 [pid 20980] <... futex resumed>) = 0 [pid 20987] set_robust_list(0x555556ba76e0, 24 [pid 20985] <... futex resumed>) = 1 [pid 20984] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20982] <... futex resumed>) = 0 [pid 20980] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20987] <... set_robust_list resumed>) = 0 [pid 20985] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20984] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20982] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20980] <... futex resumed>) = 0 [pid 20987] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20984] pipe2( [pid 20982] <... futex resumed>) = 0 [pid 20980] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 20986 attached [pid 20987] <... prctl resumed>) = 0 [pid 20985] pipe2( [pid 20984] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20982] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20987] setpgid(0, 0 [pid 20985] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20984] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20986] set_robust_list(0x7f61a3ef39e0, 24 [pid 20987] <... setpgid resumed>) = 0 [pid 20985] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20984] <... futex resumed>) = 1 [pid 20980] <... futex resumed>) = 0 [pid 20986] <... set_robust_list resumed>) = 0 [pid 20987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20985] <... futex resumed>) = 1 [pid 20984] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20982] <... futex resumed>) = 0 [pid 20980] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20986] mkdir("./file0", 0777 [pid 20987] <... openat resumed>) = 3 [pid 20985] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20984] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20982] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20980] <... futex resumed>) = 0 [pid 20986] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20987] write(3, "1000", 4 [pid 20986] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20984] dup(4 [pid 20982] <... futex resumed>) = 0 [pid 20980] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20987] <... write resumed>) = 4 [pid 20986] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20985] dup(4 [pid 20984] <... dup resumed>) = 5 [pid 20982] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20987] close(3 [pid 20986] <... futex resumed>) = 1 [pid 20985] <... dup resumed>) = 5 [pid 20984] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20983] <... futex resumed>) = 0 [pid 20987] <... close resumed>) = 0 [pid 20986] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20985] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20984] <... futex resumed>) = 1 [pid 20983] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20980] <... futex resumed>) = 0 [pid 20987] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20986] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20985] <... futex resumed>) = 1 [pid 20984] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20983] <... futex resumed>) = 0 [pid 20982] <... futex resumed>) = 0 [pid 20980] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20987] <... futex resumed>) = 0 [pid 20986] pipe2( [pid 20985] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20984] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20982] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20987] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20984] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20982] <... futex resumed>) = 0 [pid 20987] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20985] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20983] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20982] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20980] <... futex resumed>) = 0 [pid 20986] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20987] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20986] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20980] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20987] <... mprotect resumed>) = 0 [pid 20986] <... futex resumed>) = 1 [pid 20983] <... futex resumed>) = 0 [pid 20987] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20986] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20983] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20986] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20984] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20983] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20988 attached [pid 20987] <... clone resumed>, parent_tid=[20988], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20988 [pid 20986] dup(4 [pid 20985] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20984] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20983] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20988] set_robust_list(0x7f61a3ef39e0, 24 [pid 20987] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20986] <... dup resumed>) = 5 [pid 20985] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20984] <... futex resumed>) = 1 [pid 20980] <... futex resumed>) = 0 [pid 20988] <... set_robust_list resumed>) = 0 [pid 20987] <... futex resumed>) = 0 [pid 20986] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20985] <... futex resumed>) = 1 [pid 20984] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20982] <... futex resumed>) = 0 [pid 20980] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20988] mkdir("./file0", 0777 [pid 20987] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20986] <... futex resumed>) = 1 [pid 20985] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20984] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20983] <... futex resumed>) = 0 [pid 20982] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20980] <... futex resumed>) = 0 [pid 20988] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20986] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20985] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20984] write(5, NULL, 176 [pid 20983] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20982] <... futex resumed>) = 0 [pid 20980] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20988] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20986] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20985] write(5, NULL, 176 [pid 20984] <... write resumed>) = -1 EFAULT (Bad address) [pid 20983] <... futex resumed>) = 0 [pid 20982] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20988] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20986] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20985] <... write resumed>) = -1 EFAULT (Bad address) [pid 20984] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20983] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20988] <... futex resumed>) = 1 [pid 20987] <... futex resumed>) = 0 [pid 20985] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20984] <... futex resumed>) = 1 [pid 20980] <... futex resumed>) = 0 [pid 20988] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20987] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20985] <... futex resumed>) = 1 [pid 20984] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20982] <... futex resumed>) = 0 [pid 20980] exit_group(0 [pid 20988] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20987] <... futex resumed>) = 0 [pid 20985] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20982] exit_group(0 [pid 20988] pipe2( [pid 20987] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20985] <... futex resumed>) = ? [pid 20984] <... futex resumed>) = ? [pid 20982] <... exit_group resumed>) = ? [pid 20980] <... exit_group resumed>) = ? [pid 20988] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20985] +++ exited with 0 +++ [pid 20982] +++ exited with 0 +++ [pid 20988] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20987] <... futex resumed>) = 0 [pid 20988] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20987] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20984] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20982, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20988] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20987] <... futex resumed>) = 0 [pid 20980] +++ exited with 0 +++ [pid 20988] dup(4 [pid 20987] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20980, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20988] <... dup resumed>) = 5 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 20988] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 20988] <... futex resumed>) = 1 [pid 20987] <... futex resumed>) = 0 [pid 20986] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20988] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20987] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20986] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20988] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20987] <... futex resumed>) = 0 [pid 20986] <... futex resumed>) = 1 [pid 20983] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 20988] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20987] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20986] write(5, NULL, 176 [pid 20983] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 20986] <... write resumed>) = -1 EFAULT (Bad address) [pid 20983] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 20986] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20983] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] ioctl(3, LOOP_CLR_FD [pid 20986] <... futex resumed>) = 0 [pid 20983] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 20986] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20983] exit_group(0 [pid 3604] close(3 [pid 20986] <... futex resumed>) = ? [pid 20983] <... exit_group resumed>) = ? [pid 3604] <... close resumed>) = 0 [pid 20986] +++ exited with 0 +++ [pid 20983] +++ exited with 0 +++ [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20983, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20989 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] close(3) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20990 ./strace-static-x86_64: Process 20990 attached ./strace-static-x86_64: Process 20989 attached [pid 20988] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20990] set_robust_list(0x555556ba76e0, 24 [pid 20989] set_robust_list(0x555556ba76e0, 24 [pid 20988] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20990] <... set_robust_list resumed>) = 0 [pid 20989] <... set_robust_list resumed>) = 0 [pid 20988] <... futex resumed>) = 1 [pid 20987] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20991 [pid 20990] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20989] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20988] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20987] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20990] <... prctl resumed>) = 0 [pid 20989] <... prctl resumed>) = 0 [pid 20988] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20987] <... futex resumed>) = 0 ./strace-static-x86_64: Process 20991 attached [pid 20990] setpgid(0, 0 [pid 20989] setpgid(0, 0 [pid 20988] write(5, NULL, 176 [pid 20987] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20991] set_robust_list(0x555556ba76e0, 24 [pid 20990] <... setpgid resumed>) = 0 [pid 20989] <... setpgid resumed>) = 0 [pid 20988] <... write resumed>) = -1 EFAULT (Bad address) [pid 20991] <... set_robust_list resumed>) = 0 [pid 20990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20991] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20990] <... openat resumed>) = 3 [pid 20988] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20990] write(3, "1000", 4 [pid 20989] <... openat resumed>) = 3 [pid 20988] <... futex resumed>) = 1 [pid 20987] <... futex resumed>) = 0 [pid 20991] <... prctl resumed>) = 0 [pid 20990] <... write resumed>) = 4 [pid 20989] write(3, "1000", 4 [pid 20988] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20987] exit_group(0 [pid 20991] setpgid(0, 0 [pid 20990] close(3 [pid 20987] <... exit_group resumed>) = ? [pid 20988] <... futex resumed>) = ? [pid 20989] <... write resumed>) = 4 [pid 20991] <... setpgid resumed>) = 0 [pid 20990] <... close resumed>) = 0 [pid 20991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 20991] write(3, "1000", 4) = 4 [pid 20988] +++ exited with 0 +++ [pid 20987] +++ exited with 0 +++ [pid 20991] close(3) = 0 [pid 20990] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20989] close(3 [pid 20991] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20990] <... futex resumed>) = 0 [pid 20991] <... futex resumed>) = 0 [pid 20990] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20989] <... close resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20987, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20991] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20990] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20989] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 20991] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20990] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20989] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 20991] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20990] <... mprotect resumed>) = 0 [pid 20989] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 20991] <... mprotect resumed>) = 0 [pid 20990] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20989] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 20992 attached [pid 20991] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20989] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] close(3 [pid 20992] set_robust_list(0x7f61a3ef39e0, 24 [pid 20990] <... clone resumed>, parent_tid=[20992], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20992 [pid 20989] <... mprotect resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 20990] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20989] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 20990] <... futex resumed>) = 0 [pid 20990] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20989] <... clone resumed>, parent_tid=[20994], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20994 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20995 [pid 20989] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20989] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20995 attached [pid 20995] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20995] setpgid(0, 0./strace-static-x86_64: Process 20993 attached ) = 0 [pid 20995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20993] set_robust_list(0x7f61a3ef39e0, 24 [pid 20995] <... openat resumed>) = 3 [pid 20993] <... set_robust_list resumed>) = 0 [pid 20995] write(3, "1000", 4 [pid 20993] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20995] <... write resumed>) = 4 [pid 20995] close(3) = 0 [pid 20995] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20991] <... clone resumed>, parent_tid=[20993], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20993 [pid 20995] <... futex resumed>) = 0 [pid 20995] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 20995] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 20995] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[20996], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 20996 [pid 20995] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 20995] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 20996 attached ./strace-static-x86_64: Process 20994 attached [pid 20992] <... set_robust_list resumed>) = 0 [pid 20991] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20993] <... futex resumed>) = 0 [pid 20991] <... futex resumed>) = 1 [pid 20992] mkdir("./file0", 0777 [pid 20993] mkdir("./file0", 0777 [pid 20991] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20993] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20992] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20993] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20992] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20993] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20992] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20993] <... futex resumed>) = 1 [pid 20993] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20992] <... futex resumed>) = 1 [pid 20991] <... futex resumed>) = 0 [pid 20990] <... futex resumed>) = 0 [pid 20992] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20991] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20990] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20996] set_robust_list(0x7f61a3ef39e0, 24 [pid 20994] set_robust_list(0x7f61a3ef39e0, 24 [pid 20993] <... futex resumed>) = 0 [pid 20992] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20991] <... futex resumed>) = 1 [pid 20990] <... futex resumed>) = 0 [pid 20996] <... set_robust_list resumed>) = 0 [pid 20994] <... set_robust_list resumed>) = 0 [pid 20993] pipe2( [pid 20992] pipe2( [pid 20991] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20990] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20996] mkdir("./file0", 0777 [pid 20994] mkdir("./file0", 0777 [pid 20993] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20992] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20996] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20994] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20993] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20992] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20996] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20994] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20993] <... futex resumed>) = 1 [pid 20992] <... futex resumed>) = 1 [pid 20991] <... futex resumed>) = 0 [pid 20990] <... futex resumed>) = 0 [pid 20996] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20994] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20993] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20992] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20991] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20990] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20996] <... futex resumed>) = 1 [pid 20995] <... futex resumed>) = 0 [pid 20994] <... futex resumed>) = 1 [pid 20993] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20992] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20991] <... futex resumed>) = 0 [pid 20990] <... futex resumed>) = 0 [pid 20989] <... futex resumed>) = 0 [pid 20996] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20995] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20994] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20993] dup(4 [pid 20992] dup(4 [pid 20991] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20990] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20989] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20995] <... futex resumed>) = 0 [pid 20994] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20993] <... dup resumed>) = 5 [pid 20992] <... dup resumed>) = 5 [pid 20989] <... futex resumed>) = 0 [pid 20996] pipe2( [pid 20995] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20994] pipe2( [pid 20993] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20992] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20989] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20996] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20994] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20993] <... futex resumed>) = 1 [pid 20992] <... futex resumed>) = 1 [pid 20991] <... futex resumed>) = 0 [pid 20990] <... futex resumed>) = 0 [pid 20996] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20994] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20993] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20992] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20991] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20990] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20996] <... futex resumed>) = 1 [pid 20995] <... futex resumed>) = 0 [pid 20994] <... futex resumed>) = 1 [pid 20993] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20992] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20991] <... futex resumed>) = 0 [pid 20990] <... futex resumed>) = 0 [pid 20989] <... futex resumed>) = 0 [pid 20996] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20995] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20994] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20993] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20992] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20991] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20990] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20989] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20995] <... futex resumed>) = 0 [pid 20994] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20989] <... futex resumed>) = 0 [pid 20996] dup(4 [pid 20995] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20994] dup(4 [pid 20989] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20996] <... dup resumed>) = 5 [pid 20994] <... dup resumed>) = 5 [pid 20996] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20994] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20996] <... futex resumed>) = 1 [pid 20995] <... futex resumed>) = 0 [pid 20994] <... futex resumed>) = 1 [pid 20989] <... futex resumed>) = 0 [pid 20996] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20995] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20994] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20989] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20996] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20995] <... futex resumed>) = 0 [pid 20994] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20989] <... futex resumed>) = 0 [pid 20996] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20995] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20994] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20989] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20996] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20996] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 20996] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20995] <... futex resumed>) = 0 [pid 20994] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20995] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20992] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20996] <... futex resumed>) = 0 [pid 20995] <... futex resumed>) = 1 [pid 20994] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20996] write(5, NULL, 176 [pid 20995] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20994] <... futex resumed>) = 1 [pid 20993] <... mount resumed>) = -1 EFAULT (Bad address) [pid 20992] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20989] <... futex resumed>) = 0 [pid 20996] <... write resumed>) = -1 EFAULT (Bad address) [pid 20994] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20993] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20992] <... futex resumed>) = 1 [pid 20990] <... futex resumed>) = 0 [pid 20989] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20996] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20994] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20993] <... futex resumed>) = 1 [pid 20992] write(5, NULL, 176 [pid 20991] <... futex resumed>) = 0 [pid 20990] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20989] <... futex resumed>) = 0 [pid 20996] <... futex resumed>) = 1 [pid 20995] <... futex resumed>) = 0 [pid 20994] write(5, NULL, 176 [pid 20993] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20992] <... write resumed>) = -1 EFAULT (Bad address) [pid 20991] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20990] <... futex resumed>) = 0 [pid 20989] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20996] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20995] exit_group(0 [pid 20994] <... write resumed>) = -1 EFAULT (Bad address) [pid 20993] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20992] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20991] <... futex resumed>) = 0 [pid 20990] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20996] <... futex resumed>) = ? [pid 20995] <... exit_group resumed>) = ? [pid 20994] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20993] write(5, NULL, 176 [pid 20992] <... futex resumed>) = 0 [pid 20991] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20990] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20996] +++ exited with 0 +++ [pid 20995] +++ exited with 0 +++ [pid 20994] <... futex resumed>) = 1 [pid 20993] <... write resumed>) = -1 EFAULT (Bad address) [pid 20992] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20990] exit_group(0 [pid 20989] <... futex resumed>) = 0 [pid 20994] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20993] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20992] <... futex resumed>) = ? [pid 20990] <... exit_group resumed>) = ? [pid 20989] exit_group(0 [pid 20993] <... futex resumed>) = 1 [pid 20992] +++ exited with 0 +++ [pid 20991] <... futex resumed>) = 0 [pid 20991] exit_group(0) = ? [pid 20990] +++ exited with 0 +++ [pid 20994] <... futex resumed>) = ? [pid 20989] <... exit_group resumed>) = ? [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20995, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 20994] +++ exited with 0 +++ [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20990, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3601] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 20989] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20989, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 20993] +++ exited with 0 +++ [pid 20991] +++ exited with 0 +++ [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] <... openat resumed>) = 3 [pid 3606] <... restart_syscall resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20991, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] <... openat resumed>) = 3 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] close(3 [pid 3601] close(3 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] <... openat resumed>) = 3 [pid 3604] <... close resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] close(3 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] <... close resumed>) = 0 [pid 3606] close(3 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20999 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21000 ./strace-static-x86_64: Process 20997 attached [pid 20997] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20997] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 20997] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 20999 attached [pid 20997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20999] set_robust_list(0x555556ba76e0, 24) = 0 [pid 20999] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20997] <... openat resumed>) = 3 [pid 20999] <... prctl resumed>) = 0 [pid 20997] write(3, "1000", 4 [pid 20999] setpgid(0, 0 [pid 20997] <... write resumed>) = 4 [pid 20999] <... setpgid resumed>) = 0 [pid 20997] close(3 [pid 20999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20997] <... close resumed>) = 0 [pid 20999] <... openat resumed>) = 3 [pid 20997] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20999] write(3, "1000", 4 [pid 20997] <... futex resumed>) = 0 [pid 20999] <... write resumed>) = 4 [pid 20997] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20999] close(3 [pid 20997] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20999] <... close resumed>) = 0 [pid 20997] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20997 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 20998 [pid 20999] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20997] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 21000 attached ./strace-static-x86_64: Process 20998 attached [pid 20999] <... futex resumed>) = 0 [pid 20997] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21000] set_robust_list(0x555556ba76e0, 24 [pid 20999] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20998] set_robust_list(0x555556ba76e0, 24 [pid 20999] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20997] <... clone resumed>, parent_tid=[21001], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21001 [pid 21000] <... set_robust_list resumed>) = 0 [pid 20998] <... set_robust_list resumed>) = 0 [pid 20999] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20997] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21000] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20999] <... mprotect resumed>) = 0 [pid 20998] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 20997] <... futex resumed>) = 0 [pid 21000] <... prctl resumed>) = 0 [pid 20999] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20997] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20998] <... prctl resumed>) = 0 [pid 21000] setpgid(0, 0 [pid 20998] setpgid(0, 0 [pid 21000] <... setpgid resumed>) = 0 [pid 20999] <... clone resumed>, parent_tid=[21002], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21002 [pid 20998] <... setpgid resumed>) = 0 [pid 21000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 20999] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21000] <... openat resumed>) = 3 [pid 20999] <... futex resumed>) = 0 [pid 21000] write(3, "1000", 4 [pid 20999] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20998] <... openat resumed>) = 3 [pid 21000] <... write resumed>) = 4 [pid 20998] write(3, "1000", 4 [pid 21000] close(3 [pid 20998] <... write resumed>) = 4 [pid 21000] <... close resumed>) = 0 [pid 20998] close(3 [pid 21000] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20998] <... close resumed>) = 0 [pid 21000] <... futex resumed>) = 0 [pid 20998] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21002 attached [pid 21000] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 20998] <... futex resumed>) = 0 [pid 21002] set_robust_list(0x7f61a3ef39e0, 24 [pid 21000] <... mmap resumed>) = 0x7f61a3ed3000 [pid 20998] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21002] <... set_robust_list resumed>) = 0 [pid 21000] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 20998] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21002] mkdir("./file0", 0777 [pid 21000] <... mprotect resumed>) = 0 [pid 20998] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21002] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21000] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 20998] <... mprotect resumed>) = 0 [pid 21002] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21002] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21000] <... clone resumed>, parent_tid=[21003], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21003 [pid 20998] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21002] <... futex resumed>) = 1 [pid 21000] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20999] <... futex resumed>) = 0 [pid 21002] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21000] <... futex resumed>) = 0 [pid 20999] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20998] <... clone resumed>, parent_tid=[21004], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21004 [pid 21002] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21000] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 20999] <... futex resumed>) = 0 [pid 20998] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21002] pipe2( [pid 20999] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20998] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21004 attached ./strace-static-x86_64: Process 21001 attached [pid 21002] <... pipe2 resumed>[3, 4], 0) = 0 [pid 20998] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21003 attached [pid 21004] set_robust_list(0x7f61a3ef39e0, 24 [pid 21002] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21001] set_robust_list(0x7f61a3ef39e0, 24 [pid 21004] <... set_robust_list resumed>) = 0 [pid 21002] <... futex resumed>) = 1 [pid 20999] <... futex resumed>) = 0 [pid 21004] mkdir("./file0", 0777 [pid 21002] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20999] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21004] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21002] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20999] <... futex resumed>) = 0 [pid 21004] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21002] dup(4 [pid 20999] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21004] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21002] <... dup resumed>) = 5 [pid 21004] <... futex resumed>) = 1 [pid 21002] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20998] <... futex resumed>) = 0 [pid 21004] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21002] <... futex resumed>) = 1 [pid 20999] <... futex resumed>) = 0 [pid 20998] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21004] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21002] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20999] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20998] <... futex resumed>) = 0 [pid 21004] pipe2( [pid 21002] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21001] <... set_robust_list resumed>) = 0 [pid 20999] <... futex resumed>) = 0 [pid 20998] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21003] set_robust_list(0x7f61a3ef39e0, 24 [pid 21004] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21002] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21001] mkdir("./file0", 0777 [pid 20999] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21004] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21003] <... set_robust_list resumed>) = 0 [pid 21004] <... futex resumed>) = 1 [pid 21003] mkdir("./file0", 0777 [pid 21001] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 20998] <... futex resumed>) = 0 [pid 21004] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21003] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21002] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21001] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 20998] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21004] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21003] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21001] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20998] <... futex resumed>) = 0 [pid 21002] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21004] dup(4 [pid 21003] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21001] <... futex resumed>) = 1 [pid 20998] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20997] <... futex resumed>) = 0 [pid 21004] <... dup resumed>) = 5 [pid 21003] <... futex resumed>) = 1 [pid 21002] <... futex resumed>) = 1 [pid 21001] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21000] <... futex resumed>) = 0 [pid 20999] <... futex resumed>) = 0 [pid 20997] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21004] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21003] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21000] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20999] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20997] <... futex resumed>) = 0 [pid 21002] write(5, NULL, 176 [pid 21004] <... futex resumed>) = 1 [pid 21003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21001] pipe2( [pid 21000] <... futex resumed>) = 0 [pid 20999] <... futex resumed>) = 0 [pid 20998] <... futex resumed>) = 0 [pid 20997] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21002] <... write resumed>) = -1 EFAULT (Bad address) [pid 21004] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21003] pipe2( [pid 21001] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21000] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20999] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20998] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21002] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21004] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21003] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21002] <... futex resumed>) = 0 [pid 21001] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20999] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20998] <... futex resumed>) = 0 [pid 21004] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21003] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21001] <... futex resumed>) = 1 [pid 20999] exit_group(0 [pid 20998] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20997] <... futex resumed>) = 0 [pid 21003] <... futex resumed>) = 1 [pid 21002] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21001] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21000] <... futex resumed>) = 0 [pid 21003] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21000] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21000] <... futex resumed>) = 0 [pid 21003] dup(4 [pid 21000] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20997] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21003] <... dup resumed>) = 5 [pid 21002] <... futex resumed>) = ? [pid 20999] <... exit_group resumed>) = ? [pid 21003] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21000] <... futex resumed>) = 0 [pid 21003] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21000] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21000] <... futex resumed>) = 0 [pid 21003] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21001] <... futex resumed>) = 0 [pid 21000] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 20997] <... futex resumed>) = 1 [pid 21004] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21002] +++ exited with 0 +++ [pid 21001] dup(4 [pid 20999] +++ exited with 0 +++ [pid 20997] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21004] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21001] <... dup resumed>) = 5 [pid 21004] <... futex resumed>) = 1 [pid 21001] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 20998] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20999, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21004] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21001] <... futex resumed>) = 1 [pid 20998] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 20997] <... futex resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 21004] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 20998] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 21004] write(5, NULL, 176 [pid 20998] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21004] <... write resumed>) = -1 EFAULT (Bad address) [pid 21004] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21004] <... futex resumed>) = 1 [pid 20998] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 21004] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20998] exit_group(0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21004] <... futex resumed>) = ? [pid 21001] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 20998] <... exit_group resumed>) = ? [pid 20997] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21004] +++ exited with 0 +++ [pid 20998] +++ exited with 0 +++ [pid 20997] <... futex resumed>) = 0 [pid 3607] close(3 [pid 20997] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20998, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 21005 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 21003] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21003] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 21005 attached [pid 21003] <... futex resumed>) = 1 [pid 21000] <... futex resumed>) = 0 [pid 3601] close(3 [pid 21005] set_robust_list(0x555556ba76e0, 24 [pid 21003] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21000] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 21005] <... set_robust_list resumed>) = 0 [pid 21003] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21001] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21000] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21005] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21003] write(5, NULL, 176 [pid 21001] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21000] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21005] <... prctl resumed>) = 0 [pid 21003] <... write resumed>) = -1 EFAULT (Bad address) [pid 21001] <... futex resumed>) = 1 [pid 20997] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21006 [pid 21005] setpgid(0, 0 [pid 21003] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21001] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20997] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21005] <... setpgid resumed>) = 0 [pid 21005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21005] write(3, "1000", 4) = 4 [pid 21003] <... futex resumed>) = 1 [pid 21001] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21000] <... futex resumed>) = 0 [pid 20997] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21006 attached [pid 21005] close(3 [pid 21003] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21001] write(5, NULL, 176 [pid 21000] exit_group(0 [pid 20997] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21006] set_robust_list(0x555556ba76e0, 24 [pid 21005] <... close resumed>) = 0 [pid 21003] <... futex resumed>) = ? [pid 21001] <... write resumed>) = -1 EFAULT (Bad address) [pid 21000] <... exit_group resumed>) = ? [pid 21006] <... set_robust_list resumed>) = 0 [pid 21005] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21003] +++ exited with 0 +++ [pid 21001] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21006] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21005] <... futex resumed>) = 0 [pid 21001] <... futex resumed>) = 1 [pid 21000] +++ exited with 0 +++ [pid 20997] <... futex resumed>) = 0 [pid 21006] <... prctl resumed>) = 0 [pid 21005] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21001] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 20997] exit_group(0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21000, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21006] setpgid(0, 0 [pid 21005] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21001] <... futex resumed>) = ? [pid 20997] <... exit_group resumed>) = ? [pid 21006] <... setpgid resumed>) = 0 [pid 21005] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21001] +++ exited with 0 +++ [pid 21006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21005] <... mprotect resumed>) = 0 [pid 20997] +++ exited with 0 +++ [pid 21006] <... openat resumed>) = 3 [pid 21005] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=20997, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 21007 attached [pid 21006] write(3, "1000", 4 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 21006] <... write resumed>) = 4 [pid 21005] <... clone resumed>, parent_tid=[21007], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21007 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] <... restart_syscall resumed>) = 0 [pid 21007] set_robust_list(0x7f61a3ef39e0, 24 [pid 21006] close(3 [pid 21005] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 21007] <... set_robust_list resumed>) = 0 [pid 21006] <... close resumed>) = 0 [pid 21005] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21006] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21005] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21006] <... futex resumed>) = 0 [pid 3606] close(3 [pid 3604] <... openat resumed>) = 3 [pid 21007] mkdir("./file0", 0777 [pid 21006] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] <... close resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] close(3 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21008 [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 21009 ./strace-static-x86_64: Process 21008 attached [pid 21008] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21008] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21008] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 21009 attached [pid 21008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21009] set_robust_list(0x555556ba76e0, 24 [pid 21008] <... openat resumed>) = 3 [pid 21009] <... set_robust_list resumed>) = 0 [pid 21008] write(3, "1000", 4 [pid 21009] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21008] <... write resumed>) = 4 [pid 21009] <... prctl resumed>) = 0 [pid 21008] close(3 [pid 21009] setpgid(0, 0 [pid 21008] <... close resumed>) = 0 [pid 21009] <... setpgid resumed>) = 0 [pid 21008] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21008] <... futex resumed>) = 0 [pid 21009] <... openat resumed>) = 3 [pid 21008] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21007] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21006] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21009] write(3, "1000", 4 [pid 21008] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21007] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21006] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21009] <... write resumed>) = 4 [pid 21008] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21007] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21006] <... mprotect resumed>) = 0 [pid 21009] close(3 [pid 21008] <... mprotect resumed>) = 0 [pid 21007] <... futex resumed>) = 1 [pid 21006] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21005] <... futex resumed>) = 0 [pid 21009] <... close resumed>) = 0 [pid 21008] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21007] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21005] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21011 attached [pid 21009] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21007] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21006] <... clone resumed>, parent_tid=[21010], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21010 [pid 21005] <... futex resumed>) = 0 [pid 21011] set_robust_list(0x7f61a3ef39e0, 24 [pid 21009] <... futex resumed>) = 0 [pid 21008] <... clone resumed>, parent_tid=[21011], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21011 [pid 21007] pipe2( [pid 21006] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21005] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21011] <... set_robust_list resumed>) = 0 [pid 21009] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21008] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21007] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21006] <... futex resumed>) = 0 [pid 21011] mkdir("./file0", 0777 [pid 21009] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21008] <... futex resumed>) = 0 [pid 21007] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21006] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21009] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21008] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21007] <... futex resumed>) = 1 [pid 21005] <... futex resumed>) = 0 [pid 21011] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21009] <... mprotect resumed>) = 0 [pid 21007] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21005] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21010 attached [pid 21011] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21009] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21007] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21005] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21012 attached [pid 21011] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21010] set_robust_list(0x7f61a3ef39e0, 24 [pid 21007] dup(4 [pid 21005] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21012] set_robust_list(0x7f61a3ef39e0, 24 [pid 21011] <... futex resumed>) = 1 [pid 21010] <... set_robust_list resumed>) = 0 [pid 21009] <... clone resumed>, parent_tid=[21012], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21012 [pid 21008] <... futex resumed>) = 0 [pid 21007] <... dup resumed>) = 5 [pid 21011] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21010] mkdir("./file0", 0777 [pid 21009] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21008] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21007] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21012] <... set_robust_list resumed>) = 0 [pid 21011] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21010] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21009] <... futex resumed>) = 0 [pid 21008] <... futex resumed>) = 0 [pid 21007] <... futex resumed>) = 1 [pid 21005] <... futex resumed>) = 0 [pid 21012] mkdir("./file0", 0777 [pid 21011] pipe2( [pid 21010] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21009] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21008] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21007] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21005] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21012] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21011] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21010] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21007] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21005] <... futex resumed>) = 0 [pid 21012] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21011] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21010] <... futex resumed>) = 1 [pid 21007] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21006] <... futex resumed>) = 0 [pid 21005] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21012] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21011] <... futex resumed>) = 1 [pid 21010] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21008] <... futex resumed>) = 0 [pid 21006] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21008] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21010] pipe2( [pid 21008] <... futex resumed>) = 0 [pid 21011] dup(4 [pid 21010] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21008] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21006] <... futex resumed>) = 0 [pid 21010] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21010] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21011] <... dup resumed>) = 5 [pid 21006] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21011] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21006] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21011] <... futex resumed>) = 1 [pid 21008] <... futex resumed>) = 0 [pid 21006] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21012] <... futex resumed>) = 1 [pid 21009] <... futex resumed>) = 0 [pid 21011] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21010] <... futex resumed>) = 0 [pid 21009] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21008] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21006] <... futex resumed>) = 1 [pid 21011] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21010] dup(4 [pid 21009] <... futex resumed>) = 0 [pid 21008] <... futex resumed>) = 0 [pid 21006] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21011] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21010] <... dup resumed>) = 5 [pid 21009] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21008] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21012] pipe2( [pid 21010] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21012] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21010] <... futex resumed>) = 1 [pid 21006] <... futex resumed>) = 0 [pid 21012] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21010] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21006] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21012] <... futex resumed>) = 1 [pid 21010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21009] <... futex resumed>) = 0 [pid 21010] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21009] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21006] <... futex resumed>) = 0 [pid 21012] dup(4 [pid 21009] <... futex resumed>) = 0 [pid 21007] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21006] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21012] <... dup resumed>) = 5 [pid 21009] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21007] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21012] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21009] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21007] <... futex resumed>) = 1 [pid 21005] <... futex resumed>) = 0 [pid 21012] <... futex resumed>) = 0 [pid 21009] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21007] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21005] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21012] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21009] <... futex resumed>) = 0 [pid 21007] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21005] <... futex resumed>) = 0 [pid 21009] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21007] write(5, NULL, 176 [pid 21005] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21007] <... write resumed>) = -1 EFAULT (Bad address) [pid 21007] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21005] <... futex resumed>) = 0 [pid 21007] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21005] exit_group(0 [pid 21007] <... futex resumed>) = ? [pid 21005] <... exit_group resumed>) = ? [pid 21007] +++ exited with 0 +++ [pid 21005] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21005, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3607] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21010] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] <... openat resumed>) = 3 [pid 21011] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21011] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21010] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21012] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21011] <... futex resumed>) = 1 [pid 21010] <... futex resumed>) = 1 [pid 21008] <... futex resumed>) = 0 [pid 21006] <... futex resumed>) = 0 [pid 3607] close(3 [pid 21012] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21011] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21010] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21008] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21006] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 21012] <... futex resumed>) = 1 [pid 21011] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21010] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21009] <... futex resumed>) = 0 [pid 21008] <... futex resumed>) = 0 [pid 21006] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21012] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21011] write(5, NULL, 176 [pid 21010] write(5, NULL, 176 [pid 21009] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21008] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21006] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21012] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21011] <... write resumed>) = -1 EFAULT (Bad address) [pid 21010] <... write resumed>) = -1 EFAULT (Bad address) [pid 21009] <... futex resumed>) = 0 [pid 21012] write(5, NULL, 176 [pid 21011] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21010] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21009] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21013 [pid 21012] <... write resumed>) = -1 EFAULT (Bad address) [pid 21011] <... futex resumed>) = 1 [pid 21010] <... futex resumed>) = 1 [pid 21008] <... futex resumed>) = 0 [pid 21006] <... futex resumed>) = 0 [pid 21012] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21011] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21010] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21008] exit_group(0 [pid 21006] exit_group(0 [pid 21012] <... futex resumed>) = 1 [pid 21011] <... futex resumed>) = ? [pid 21010] <... futex resumed>) = ? [pid 21009] <... futex resumed>) = 0 [pid 21008] <... exit_group resumed>) = ? [pid 21006] <... exit_group resumed>) = ? [pid 21012] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21011] +++ exited with 0 +++ [pid 21010] +++ exited with 0 +++ [pid 21009] exit_group(0 [pid 21008] +++ exited with 0 +++ [pid 21006] +++ exited with 0 +++ [pid 21012] <... futex resumed>) = ? [pid 21009] <... exit_group resumed>) = ? [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21008, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21006, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21012] +++ exited with 0 +++ [pid 21009] +++ exited with 0 +++ [pid 3606] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21009, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 21013 attached ) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21013] set_robust_list(0x555556ba76e0, 24 [pid 3606] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21013] <... set_robust_list resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21013] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... openat resumed>) = 3 [pid 3606] close(3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3606] <... close resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... openat resumed>) = 3 [pid 3604] close(3 [pid 21013] <... prctl resumed>) = 0 [pid 21013] setpgid(0, 0) = 0 [pid 21013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3604] <... close resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21014 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21013] <... openat resumed>) = 3 [pid 21013] write(3, "1000", 4 [pid 3601] close(3 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21015 [pid 3601] <... close resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21014 attached [pid 21013] <... write resumed>) = 4 [pid 21014] set_robust_list(0x555556ba76e0, 24 [pid 21013] close(3 [pid 21014] <... set_robust_list resumed>) = 0 [pid 21013] <... close resumed>) = 0 [pid 21014] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21013] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21014] <... prctl resumed>) = 0 [pid 21013] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21016 [pid 21014] setpgid(0, 0 [pid 21013] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21014] <... setpgid resumed>) = 0 [pid 21013] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21013] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 21016 attached [pid 21014] <... openat resumed>) = 3 [pid 21013] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 21015 attached [pid 21016] set_robust_list(0x555556ba76e0, 24 [pid 21014] write(3, "1000", 4 [pid 21013] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21016] <... set_robust_list resumed>) = 0 [pid 21014] <... write resumed>) = 4 [pid 21016] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21015] set_robust_list(0x555556ba76e0, 24 [pid 21014] close(3 [pid 21013] <... clone resumed>, parent_tid=[21017], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21017 [pid 21016] <... prctl resumed>) = 0 [pid 21014] <... close resumed>) = 0 [pid 21013] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21016] setpgid(0, 0 [pid 21014] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21013] <... futex resumed>) = 0 [pid 21016] <... setpgid resumed>) = 0 [pid 21014] <... futex resumed>) = 0 [pid 21013] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21014] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21016] <... openat resumed>) = 3 [pid 21014] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21016] write(3, "1000", 4 [pid 21014] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21016] <... write resumed>) = 4 [pid 21014] <... mprotect resumed>) = 0 [pid 21016] close(3 [pid 21014] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21016] <... close resumed>) = 0 [pid 21016] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21014] <... clone resumed>, parent_tid=[21018], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21018 [pid 21016] <... futex resumed>) = 0 [pid 21014] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21016] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21014] <... futex resumed>) = 0 [pid 21016] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21014] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21016] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21016] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21015] <... set_robust_list resumed>) = 0 [pid 21016] <... clone resumed>, parent_tid=[21019], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21019 [pid 21016] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21015] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21016] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21015] <... prctl resumed>) = 0 [pid 21015] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 21018 attached [pid 21018] set_robust_list(0x7f61a3ef39e0, 24 [pid 21015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21018] <... set_robust_list resumed>) = 0 [pid 21018] mkdir("./file0", 0777./strace-static-x86_64: Process 21019 attached ) = -1 EEXIST (File exists) [pid 21015] <... openat resumed>) = 3 [pid 21019] set_robust_list(0x7f61a3ef39e0, 24 [pid 21018] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21015] write(3, "1000", 4 [pid 21019] <... set_robust_list resumed>) = 0 [pid 21018] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21015] <... write resumed>) = 4 [pid 21015] close(3) = 0 [pid 21015] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21019] mkdir("./file0", 0777 [pid 21018] <... futex resumed>) = 1 [pid 21015] <... futex resumed>) = 0 [pid 21014] <... futex resumed>) = 0 [pid 21019] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21018] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21014] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21019] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21015] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21014] <... futex resumed>) = 0 [pid 21019] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21018] pipe2( [pid 21014] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21019] <... futex resumed>) = 1 [pid 21018] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21016] <... futex resumed>) = 0 [pid 21015] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21019] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21018] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21016] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21015] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21018] <... futex resumed>) = 1 [pid 21016] <... futex resumed>) = 0 [pid 21015] <... mprotect resumed>) = 0 [pid 21014] <... futex resumed>) = 0 [pid 21019] pipe2( [pid 21018] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21016] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21014] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21015] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21019] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21014] <... futex resumed>) = 0 [pid 21019] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21018] dup(4 [pid 21014] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21019] <... futex resumed>) = 1 [pid 21018] <... dup resumed>) = 5 [pid 21016] <... futex resumed>) = 0 [pid 21015] <... clone resumed>, parent_tid=[21020], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21020 ./strace-static-x86_64: Process 21017 attached [pid 21019] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21018] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21016] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21015] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21018] <... futex resumed>) = 1 [pid 21017] set_robust_list(0x7f61a3ef39e0, 24 [pid 21016] <... futex resumed>) = 0 [pid 21015] <... futex resumed>) = 0 [pid 21014] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21020 attached [pid 21019] dup(4 [pid 21018] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21017] <... set_robust_list resumed>) = 0 [pid 21016] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21015] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21014] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21020] set_robust_list(0x7f61a3ef39e0, 24 [pid 21019] <... dup resumed>) = 5 [pid 21018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21014] <... futex resumed>) = 0 [pid 21017] mkdir("./file0", 0777 [pid 21020] <... set_robust_list resumed>) = 0 [pid 21019] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21018] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21014] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21017] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21020] mkdir("./file0", 0777 [pid 21019] <... futex resumed>) = 1 [pid 21016] <... futex resumed>) = 0 [pid 21020] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21019] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21017] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21016] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21020] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21018] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21017] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21016] <... futex resumed>) = 0 [pid 21020] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21019] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21018] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21017] <... futex resumed>) = 1 [pid 21016] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21013] <... futex resumed>) = 0 [pid 21020] <... futex resumed>) = 1 [pid 21018] <... futex resumed>) = 1 [pid 21017] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21015] <... futex resumed>) = 0 [pid 21014] <... futex resumed>) = 0 [pid 21013] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21020] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21018] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21017] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21015] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21014] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21013] <... futex resumed>) = 0 [pid 21020] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21018] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21017] pipe2( [pid 21015] <... futex resumed>) = 0 [pid 21014] <... futex resumed>) = 0 [pid 21013] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21020] pipe2( [pid 21018] write(5, NULL, 176 [pid 21017] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21015] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21014] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21020] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21019] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21018] <... write resumed>) = -1 EFAULT (Bad address) [pid 21017] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21020] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21019] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21018] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21017] <... futex resumed>) = 1 [pid 21013] <... futex resumed>) = 0 [pid 21020] <... futex resumed>) = 1 [pid 21019] <... futex resumed>) = 1 [pid 21018] <... futex resumed>) = 1 [pid 21017] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21016] <... futex resumed>) = 0 [pid 21015] <... futex resumed>) = 0 [pid 21014] <... futex resumed>) = 0 [pid 21013] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21020] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21019] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21018] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21017] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21016] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21015] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21014] exit_group(0 [pid 21013] <... futex resumed>) = 0 [pid 21020] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21019] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21018] <... futex resumed>) = ? [pid 21017] dup(4 [pid 21016] <... futex resumed>) = 0 [pid 21015] <... futex resumed>) = 0 [pid 21014] <... exit_group resumed>) = ? [pid 21013] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21020] dup(4 [pid 21019] write(5, NULL, 176 [pid 21018] +++ exited with 0 +++ [pid 21017] <... dup resumed>) = 5 [pid 21016] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21015] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21020] <... dup resumed>) = 5 [pid 21019] <... write resumed>) = -1 EFAULT (Bad address) [pid 21017] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21014] +++ exited with 0 +++ [pid 21020] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21019] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21017] <... futex resumed>) = 1 [pid 21013] <... futex resumed>) = 0 [pid 21020] <... futex resumed>) = 1 [pid 21019] <... futex resumed>) = 1 [pid 21017] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21016] <... futex resumed>) = 0 [pid 21015] <... futex resumed>) = 0 [pid 21013] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21020] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21019] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21017] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21016] exit_group(0 [pid 21015] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21013] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21014, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21020] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21019] <... futex resumed>) = ? [pid 21017] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21016] <... exit_group resumed>) = ? [pid 21015] <... futex resumed>) = 0 [pid 21013] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21020] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21019] +++ exited with 0 +++ [pid 21016] +++ exited with 0 +++ [pid 21015] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... openat resumed>) = 3 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21016, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3606] <... close resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 21021 attached ) = -1 ENXIO (No such device or address) [pid 21021] set_robust_list(0x555556ba76e0, 24 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21021 [pid 3601] close(3 [pid 21021] <... set_robust_list resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 21021] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21021] <... prctl resumed>) = 0 [pid 21021] setpgid(0, 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21022 [pid 21021] <... setpgid resumed>) = 0 [pid 21021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21021] write(3, "1000", 4) = 4 [pid 21021] close(3) = 0 [pid 21021] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21021] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21021] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 21022 attached [pid 21021] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 21023 attached [pid 21022] set_robust_list(0x555556ba76e0, 24 [pid 21021] <... clone resumed>, parent_tid=[21023], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21023 [pid 21023] set_robust_list(0x7f61a3ef39e0, 24 [pid 21022] <... set_robust_list resumed>) = 0 [pid 21021] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21020] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21023] <... set_robust_list resumed>) = 0 [pid 21022] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21020] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21017] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21023] mkdir("./file0", 0777 [pid 21022] <... prctl resumed>) = 0 [pid 21020] <... futex resumed>) = 1 [pid 21015] <... futex resumed>) = 0 [pid 21023] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21022] setpgid(0, 0 [pid 21020] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21017] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21015] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21023] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21022] <... setpgid resumed>) = 0 [pid 21021] <... futex resumed>) = 0 [pid 21020] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21015] <... futex resumed>) = 0 [pid 21017] <... futex resumed>) = 1 [pid 21013] <... futex resumed>) = 0 [pid 21023] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21020] write(5, NULL, 176 [pid 21021] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21017] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21015] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21013] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21023] <... futex resumed>) = 0 [pid 21022] <... openat resumed>) = 3 [pid 21021] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21020] <... write resumed>) = -1 EFAULT (Bad address) [pid 21017] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21013] <... futex resumed>) = 0 [pid 21023] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21022] write(3, "1000", 4 [pid 21021] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21020] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21017] write(5, NULL, 176 [pid 21013] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21023] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21022] <... write resumed>) = 4 [pid 21021] <... futex resumed>) = 0 [pid 21020] <... futex resumed>) = 1 [pid 21017] <... write resumed>) = -1 EFAULT (Bad address) [pid 21015] <... futex resumed>) = 0 [pid 21023] pipe2( [pid 21022] close(3 [pid 21021] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21020] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21017] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21015] exit_group(0 [pid 21023] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21022] <... close resumed>) = 0 [pid 21020] <... futex resumed>) = ? [pid 21017] <... futex resumed>) = 1 [pid 21015] <... exit_group resumed>) = ? [pid 21013] <... futex resumed>) = 0 [pid 21023] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21022] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21020] +++ exited with 0 +++ [pid 21017] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21013] exit_group(0 [pid 21017] <... futex resumed>) = ? [pid 21013] <... exit_group resumed>) = ? [pid 21023] <... futex resumed>) = 1 [pid 21022] <... futex resumed>) = 0 [pid 21021] <... futex resumed>) = 0 [pid 21017] +++ exited with 0 +++ [pid 21015] +++ exited with 0 +++ [pid 21023] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21022] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21021] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21013] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21015, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21023] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21022] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21021] <... futex resumed>) = 0 [pid 21023] dup(4 [pid 21022] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21021] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21023] <... dup resumed>) = 5 [pid 21022] <... mprotect resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21013, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21023] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21022] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21023] <... futex resumed>) = 1 [pid 21021] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 21023] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21022] <... clone resumed>, parent_tid=[21024], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21024 [pid 21021] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21023] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21022] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21021] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21023] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21022] <... futex resumed>) = 0 [pid 21021] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] close(3./strace-static-x86_64: Process 21024 attached [pid 21022] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] <... close resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21024] set_robust_list(0x7f61a3ef39e0, 24 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... openat resumed>) = 3 [pid 21024] <... set_robust_list resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21024] mkdir("./file0", 0777 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21025 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21024] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3604] close(3 [pid 21024] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3604] <... close resumed>) = 0 [pid 21024] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21024] <... futex resumed>) = 1 [pid 21022] <... futex resumed>) = 0 [pid 21024] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21026 ./strace-static-x86_64: Process 21026 attached [pid 21026] set_robust_list(0x555556ba76e0, 24 [pid 21022] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21024] <... futex resumed>) = 0 [pid 21022] <... futex resumed>) = 1 [pid 21026] <... set_robust_list resumed>) = 0 [pid 21024] pipe2( [pid 21022] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21026] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21024] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21023] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 21025 attached [pid 21026] <... prctl resumed>) = 0 [pid 21024] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21023] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21026] setpgid(0, 0 [pid 21025] set_robust_list(0x555556ba76e0, 24 [pid 21024] <... futex resumed>) = 1 [pid 21023] <... futex resumed>) = 1 [pid 21022] <... futex resumed>) = 0 [pid 21021] <... futex resumed>) = 0 [pid 21026] <... setpgid resumed>) = 0 [pid 21025] <... set_robust_list resumed>) = 0 [pid 21024] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21023] write(5, NULL, 176 [pid 21022] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21021] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21024] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21021] <... futex resumed>) = 0 [pid 21026] <... openat resumed>) = 3 [pid 21024] dup(4 [pid 21023] <... write resumed>) = -1 EFAULT (Bad address) [pid 21022] <... futex resumed>) = 0 [pid 21021] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21026] write(3, "1000", 4 [pid 21025] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21024] <... dup resumed>) = 5 [pid 21023] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21022] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21021] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21026] <... write resumed>) = 4 [pid 21025] <... prctl resumed>) = 0 [pid 21024] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21023] <... futex resumed>) = 0 [pid 21022] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21021] exit_group(0 [pid 21026] close(3 [pid 21025] setpgid(0, 0 [pid 21024] <... futex resumed>) = 0 [pid 21022] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21021] <... exit_group resumed>) = ? [pid 21026] <... close resumed>) = 0 [pid 21025] <... setpgid resumed>) = 0 [pid 21024] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21023] +++ exited with 0 +++ [pid 21022] <... futex resumed>) = 0 [pid 21025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21022] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21025] <... openat resumed>) = 3 [pid 21025] write(3, "1000", 4 [pid 21021] +++ exited with 0 +++ [pid 21025] <... write resumed>) = 4 [pid 21025] close(3) = 0 [pid 21025] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21021, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21025] <... futex resumed>) = 0 [pid 21025] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21025] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21025] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21027], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21027 [pid 21025] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21026] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21025] <... futex resumed>) = 0 [pid 21025] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21027 attached [pid 21027] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21027] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21027] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21027] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21025] <... futex resumed>) = 0 [pid 21025] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21025] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21027] <... futex resumed>) = 1 [pid 21027] pipe2([3, 4], 0) = 0 [pid 21027] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21025] <... futex resumed>) = 0 [pid 21025] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21025] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21027] <... futex resumed>) = 1 [pid 21027] dup(4) = 5 [pid 21027] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21025] <... futex resumed>) = 0 [pid 21025] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21025] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21027] <... futex resumed>) = 1 [pid 21027] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21026] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21026] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 3606] <... openat resumed>) = 3 [pid 21026] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 21026] <... mprotect resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 21026] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21026] <... clone resumed>, parent_tid=[21028], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21028 [pid 21024] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21026] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21024] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21026] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21029 [pid 21024] <... futex resumed>) = 1 [pid 21022] <... futex resumed>) = 0 [pid 21024] write(5, NULL, 176 [pid 21022] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21024] <... write resumed>) = -1 EFAULT (Bad address) [pid 21022] <... futex resumed>) = 0 [pid 21024] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21022] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21024] <... futex resumed>) = 0 [pid 21022] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21024] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21022] exit_group(0./strace-static-x86_64: Process 21029 attached ./strace-static-x86_64: Process 21028 attached ) = ? [pid 21029] set_robust_list(0x555556ba76e0, 24 [pid 21028] set_robust_list(0x7f61a3ef39e0, 24 [pid 21024] <... futex resumed>) = ? [pid 21029] <... set_robust_list resumed>) = 0 [pid 21028] <... set_robust_list resumed>) = 0 [pid 21027] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21028] mkdir("./file0", 0777 [pid 21027] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21028] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21027] <... futex resumed>) = 1 [pid 21025] <... futex resumed>) = 0 [pid 21028] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21027] write(5, NULL, 176 [pid 21025] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21029] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21028] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21027] <... write resumed>) = -1 EFAULT (Bad address) [pid 21025] <... futex resumed>) = 0 [pid 21024] +++ exited with 0 +++ [pid 21022] +++ exited with 0 +++ [pid 21028] <... futex resumed>) = 1 [pid 21027] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21026] <... futex resumed>) = 0 [pid 21025] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21029] <... prctl resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21022, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21028] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21027] <... futex resumed>) = 0 [pid 21026] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21025] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21029] setpgid(0, 0 [pid 21028] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21027] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21026] <... futex resumed>) = 0 [pid 21025] exit_group(0 [pid 21029] <... setpgid resumed>) = 0 [pid 21028] pipe2( [pid 21027] <... futex resumed>) = ? [pid 21026] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21025] <... exit_group resumed>) = ? [pid 21029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21028] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21027] +++ exited with 0 +++ [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21029] <... openat resumed>) = 3 [pid 21028] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21025] +++ exited with 0 +++ [pid 3601] <... openat resumed>) = 3 [pid 21029] write(3, "1000", 4 [pid 21028] <... futex resumed>) = 1 [pid 21026] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21025, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21029] <... write resumed>) = 4 [pid 21028] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21026] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21029] close(3 [pid 21028] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21026] <... futex resumed>) = 0 [pid 3601] close(3 [pid 21029] <... close resumed>) = 0 [pid 21028] dup(4 [pid 21026] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... close resumed>) = 0 [pid 21029] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21028] <... dup resumed>) = 5 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21029] <... futex resumed>) = 0 [pid 21028] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21026] <... futex resumed>) = 0 [pid 21028] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21026] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21028] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21026] <... futex resumed>) = 0 [pid 21029] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21028] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21026] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21030 ./strace-static-x86_64: Process 21030 attached [pid 21029] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21030] set_robust_list(0x555556ba76e0, 24 [pid 21029] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] <... openat resumed>) = 3 [pid 21030] <... set_robust_list resumed>) = 0 [pid 21029] <... mprotect resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21030] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21029] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21030] <... prctl resumed>) = 0 [pid 3607] close(3./strace-static-x86_64: Process 21031 attached [pid 21030] setpgid(0, 0 [pid 21029] <... clone resumed>, parent_tid=[21031], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21031 [pid 3607] <... close resumed>) = 0 [pid 21030] <... setpgid resumed>) = 0 [pid 21029] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21028] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21029] <... futex resumed>) = 0 [pid 21028] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21031] set_robust_list(0x7f61a3ef39e0, 24 [pid 21030] <... openat resumed>) = 3 [pid 21029] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21032 [pid 21030] write(3, "1000", 4 [pid 21028] <... futex resumed>) = 1 [pid 21026] <... futex resumed>) = 0 [pid 21030] <... write resumed>) = 4 [pid 21028] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21026] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21030] close(3 [pid 21028] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21026] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21032 attached [pid 21031] <... set_robust_list resumed>) = 0 [pid 21030] <... close resumed>) = 0 [pid 21028] write(5, NULL, 176 [pid 21026] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21031] mkdir("./file0", 0777 [pid 21030] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21028] <... write resumed>) = -1 EFAULT (Bad address) [pid 21031] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21030] <... futex resumed>) = 0 [pid 21028] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21030] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21031] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21028] <... futex resumed>) = 1 [pid 21026] <... futex resumed>) = 0 [pid 21032] set_robust_list(0x555556ba76e0, 24 [pid 21031] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21030] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21028] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21026] exit_group(0 [pid 21032] <... set_robust_list resumed>) = 0 [pid 21031] <... futex resumed>) = 1 [pid 21030] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21029] <... futex resumed>) = 0 [pid 21028] <... futex resumed>) = ? [pid 21026] <... exit_group resumed>) = ? [pid 21032] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21030] <... mprotect resumed>) = 0 [pid 21029] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21028] +++ exited with 0 +++ [pid 21032] <... prctl resumed>) = 0 [pid 21030] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21029] <... futex resumed>) = 0 [pid 21032] setpgid(0, 0 [pid 21031] pipe2( [pid 21029] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21026] +++ exited with 0 +++ [pid 21032] <... setpgid resumed>) = 0 [pid 21031] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21030] <... clone resumed>, parent_tid=[21033], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21033 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21026, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21031] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21030] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 21033 attached [pid 21031] <... futex resumed>) = 1 [pid 21033] set_robust_list(0x7f61a3ef39e0, 24 [pid 21031] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21033] <... set_robust_list resumed>) = 0 [pid 21033] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21032] <... openat resumed>) = 3 [pid 21030] <... futex resumed>) = 0 [pid 21029] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 21032] write(3, "1000", 4 [pid 21030] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21029] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21033] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21032] <... write resumed>) = 4 [pid 21031] <... futex resumed>) = 0 [pid 21029] <... futex resumed>) = 1 [pid 21033] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21032] close(3 [pid 21031] dup(4 [pid 21029] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21033] <... futex resumed>) = 1 [pid 21032] <... close resumed>) = 0 [pid 21031] <... dup resumed>) = 5 [pid 21030] <... futex resumed>) = 0 [pid 21033] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21032] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21031] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21030] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 21033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21032] <... futex resumed>) = 0 [pid 21031] <... futex resumed>) = 1 [pid 21030] <... futex resumed>) = 0 [pid 21029] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21033] pipe2( [pid 21032] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21031] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21030] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21029] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21033] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21032] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21031] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21029] <... futex resumed>) = 0 [pid 3604] close(3 [pid 21033] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21032] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21031] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21029] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... close resumed>) = 0 [pid 21033] <... futex resumed>) = 1 [pid 21032] <... mprotect resumed>) = 0 [pid 21030] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21034 attached [pid 21033] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21032] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21030] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21034] set_robust_list(0x555556ba76e0, 24 [pid 21033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21030] <... futex resumed>) = 0 [pid 21034] <... set_robust_list resumed>) = 0 [pid 21033] dup(4 [pid 21030] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21034 ./strace-static-x86_64: Process 21035 attached [pid 21034] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21033] <... dup resumed>) = 5 [pid 21032] <... clone resumed>, parent_tid=[21035], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21035 [pid 21034] <... prctl resumed>) = 0 [pid 21033] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21032] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21031] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21034] setpgid(0, 0 [pid 21033] <... futex resumed>) = 1 [pid 21032] <... futex resumed>) = 0 [pid 21031] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21030] <... futex resumed>) = 0 [pid 21035] set_robust_list(0x7f61a3ef39e0, 24 [pid 21034] <... setpgid resumed>) = 0 [pid 21033] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21032] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21031] <... futex resumed>) = 1 [pid 21030] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21029] <... futex resumed>) = 0 [pid 21035] <... set_robust_list resumed>) = 0 [pid 21034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21031] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21030] <... futex resumed>) = 0 [pid 21029] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21035] mkdir("./file0", 0777 [pid 21034] <... openat resumed>) = 3 [pid 21033] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21031] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21030] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21029] <... futex resumed>) = 0 [pid 21035] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21034] write(3, "1000", 4 [pid 21031] write(5, NULL, 176 [pid 21029] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21035] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21034] <... write resumed>) = 4 [pid 21031] <... write resumed>) = -1 EFAULT (Bad address) [pid 21035] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21031] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21035] <... futex resumed>) = 1 [pid 21034] close(3 [pid 21032] <... futex resumed>) = 0 [pid 21031] <... futex resumed>) = 1 [pid 21029] <... futex resumed>) = 0 [pid 21035] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21034] <... close resumed>) = 0 [pid 21032] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21031] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21029] exit_group(0 [pid 21035] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21034] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21033] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21032] <... futex resumed>) = 0 [pid 21031] <... futex resumed>) = ? [pid 21029] <... exit_group resumed>) = ? [pid 21035] pipe2( [pid 21034] <... futex resumed>) = 0 [pid 21033] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21032] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21031] +++ exited with 0 +++ [pid 21035] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21034] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21033] <... futex resumed>) = 1 [pid 21030] <... futex resumed>) = 0 [pid 21029] +++ exited with 0 +++ [pid 21035] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21034] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21033] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21030] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21029, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21035] <... futex resumed>) = 1 [pid 21034] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21033] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21032] <... futex resumed>) = 0 [pid 21030] <... futex resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 21035] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21034] <... mprotect resumed>) = 0 [pid 21033] write(5, NULL, 176 [pid 21032] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21030] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... restart_syscall resumed>) = 0 [pid 21035] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21034] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21033] <... write resumed>) = -1 EFAULT (Bad address) [pid 21035] dup(4 [pid 21033] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21032] <... futex resumed>) = 0 [pid 21035] <... dup resumed>) = 5 [pid 21034] <... clone resumed>, parent_tid=[21036], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21036 [pid 21033] <... futex resumed>) = 1 [pid 21032] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21030] <... futex resumed>) = 0 [pid 21035] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21034] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21033] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21032] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21030] exit_group(0 [pid 21035] <... futex resumed>) = 0 [pid 21034] <... futex resumed>) = 0 [pid 21033] <... futex resumed>) = ? [pid 21032] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21030] <... exit_group resumed>) = ? [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 21036 attached [pid 21035] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21034] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21033] +++ exited with 0 +++ [pid 21032] <... futex resumed>) = 0 [pid 21030] +++ exited with 0 +++ [pid 3606] <... openat resumed>) = 3 [pid 21036] set_robust_list(0x7f61a3ef39e0, 24 [pid 21032] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21036] <... set_robust_list resumed>) = 0 [pid 21036] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21036] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21036] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21034] <... futex resumed>) = 0 [pid 21036] pipe2( [pid 21034] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21030, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21036] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21034] <... futex resumed>) = 0 [pid 3606] close(3 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 21036] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21034] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21036] <... futex resumed>) = 0 [pid 21034] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] <... close resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 21036] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21034] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21034] <... futex resumed>) = 0 [pid 21036] dup(4 [pid 21034] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21036] <... dup resumed>) = 5 [pid 21036] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21034] <... futex resumed>) = 0 [pid 21036] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21034] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21034] <... futex resumed>) = 0 [pid 21036] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21034] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21037 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 21037 attached ) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21037] set_robust_list(0x555556ba76e0, 24 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21038 [pid 21037] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 21038 attached [pid 21037] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21035] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21035] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21038] set_robust_list(0x555556ba76e0, 24 [pid 21035] <... futex resumed>) = 1 [pid 21032] <... futex resumed>) = 0 [pid 21038] <... set_robust_list resumed>) = 0 [pid 21035] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21032] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21038] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21035] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21032] <... futex resumed>) = 0 [pid 21038] <... prctl resumed>) = 0 [pid 21035] write(5, NULL, 176 [pid 21032] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21038] setpgid(0, 0 [pid 21035] <... write resumed>) = -1 EFAULT (Bad address) [pid 21038] <... setpgid resumed>) = 0 [pid 21035] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21035] <... futex resumed>) = 1 [pid 21032] <... futex resumed>) = 0 [pid 21038] <... openat resumed>) = 3 [pid 21037] <... prctl resumed>) = 0 [pid 21036] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21035] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21032] exit_group(0 [pid 21037] setpgid(0, 0 [pid 21036] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21032] <... exit_group resumed>) = ? [pid 21035] <... futex resumed>) = ? [pid 21038] write(3, "1000", 4 [pid 21037] <... setpgid resumed>) = 0 [pid 21036] <... futex resumed>) = 1 [pid 21034] <... futex resumed>) = 0 [pid 21037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21036] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21035] +++ exited with 0 +++ [pid 21034] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21032] +++ exited with 0 +++ [pid 21038] <... write resumed>) = 4 [pid 21038] close(3 [pid 21037] <... openat resumed>) = 3 [pid 21036] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21034] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21032, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21038] <... close resumed>) = 0 [pid 21037] write(3, "1000", 4 [pid 21036] write(5, NULL, 176 [pid 21034] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 21038] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21037] <... write resumed>) = 4 [pid 21036] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] <... restart_syscall resumed>) = 0 [pid 21038] <... futex resumed>) = 0 [pid 21037] close(3 [pid 21036] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21038] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21037] <... close resumed>) = 0 [pid 21036] <... futex resumed>) = 1 [pid 21034] <... futex resumed>) = 0 [pid 21038] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21037] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21036] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21034] exit_group(0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21038] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21037] <... futex resumed>) = 0 [pid 21036] <... futex resumed>) = ? [pid 21034] <... exit_group resumed>) = ? [pid 21038] <... mprotect resumed>) = 0 [pid 21037] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21036] +++ exited with 0 +++ [pid 3607] <... openat resumed>) = 3 [pid 21038] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21037] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21034] +++ exited with 0 +++ [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21037] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21034, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21038] <... clone resumed>, parent_tid=[21039], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21039 [pid 21037] <... mprotect resumed>) = 0 [pid 3607] close(3 [pid 21038] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21037] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... close resumed>) = 0 [pid 21038] <... futex resumed>) = 0 [pid 21037] <... clone resumed>, parent_tid=[21040], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21040 [pid 21037] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21037] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21039 attached [pid 21039] set_robust_list(0x7f61a3ef39e0, 24 [pid 21038] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21039] <... set_robust_list resumed>) = 0 [pid 21039] mkdir("./file0", 0777./strace-static-x86_64: Process 21040 attached [pid 3604] <... openat resumed>) = 3 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21041 [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3604] close(3 [pid 21039] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3604] <... close resumed>) = 0 [pid 21040] set_robust_list(0x7f61a3ef39e0, 24 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21040] <... set_robust_list resumed>) = 0 [pid 21040] mkdir("./file0", 0777 [pid 21039] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21040] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21039] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21040] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21039] <... futex resumed>) = 1 [pid 21038] <... futex resumed>) = 0 [pid 21038] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21042 [pid 21038] <... futex resumed>) = 0 [pid 21038] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21040] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21039] pipe2( [pid 21040] <... futex resumed>) = 1 [pid 21039] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21037] <... futex resumed>) = 0 [pid 21040] pipe2( [pid 21039] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21037] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21040] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21039] <... futex resumed>) = 1 [pid 21038] <... futex resumed>) = 0 [pid 21037] <... futex resumed>) = 0 [pid 21040] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21039] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21038] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21037] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21040] <... futex resumed>) = 0 [pid 21039] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21038] <... futex resumed>) = 0 [pid 21037] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21040] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21039] dup(4 [pid 21038] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21037] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21040] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21039] <... dup resumed>) = 5 [pid 21037] <... futex resumed>) = 0 [pid 21040] dup(4 [pid 21039] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21037] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21040] <... dup resumed>) = 5 [pid 21039] <... futex resumed>) = 1 [pid 21038] <... futex resumed>) = 0 [pid 21040] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21039] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21038] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21040] <... futex resumed>) = 1 [pid 21039] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21038] <... futex resumed>) = 0 [pid 21037] <... futex resumed>) = 0 [pid 21040] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21039] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21038] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21037] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21042 attached ./strace-static-x86_64: Process 21041 attached [pid 21040] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21037] <... futex resumed>) = 0 [pid 21040] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21037] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21042] set_robust_list(0x555556ba76e0, 24 [pid 21041] set_robust_list(0x555556ba76e0, 24 [pid 21042] <... set_robust_list resumed>) = 0 [pid 21041] <... set_robust_list resumed>) = 0 [pid 21039] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21039] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21042] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21039] <... futex resumed>) = 1 [pid 21038] <... futex resumed>) = 0 [pid 21042] <... prctl resumed>) = 0 [pid 21039] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21038] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21042] setpgid(0, 0 [pid 21041] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21039] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21038] <... futex resumed>) = 0 [pid 21039] write(5, NULL, 176 [pid 21038] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21042] <... setpgid resumed>) = 0 [pid 21041] <... prctl resumed>) = 0 [pid 21039] <... write resumed>) = -1 EFAULT (Bad address) [pid 21039] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21038] <... futex resumed>) = 0 [pid 21042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21041] setpgid(0, 0 [pid 21040] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21039] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21038] exit_group(0 [pid 21040] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21039] <... futex resumed>) = ? [pid 21038] <... exit_group resumed>) = ? [pid 21042] <... openat resumed>) = 3 [pid 21041] <... setpgid resumed>) = 0 [pid 21040] <... futex resumed>) = 1 [pid 21039] +++ exited with 0 +++ [pid 21038] +++ exited with 0 +++ [pid 21037] <... futex resumed>) = 0 [pid 21042] write(3, "1000", 4 [pid 21041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21040] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21037] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21042] <... write resumed>) = 4 [pid 21040] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21037] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21038, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21042] close(3 [pid 21041] <... openat resumed>) = 3 [pid 21040] write(5, NULL, 176 [pid 21037] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 21042] <... close resumed>) = 0 [pid 21041] write(3, "1000", 4 [pid 21040] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] <... restart_syscall resumed>) = 0 [pid 21042] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21041] <... write resumed>) = 4 [pid 21040] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21042] <... futex resumed>) = 0 [pid 21041] close(3 [pid 21040] <... futex resumed>) = 1 [pid 21037] <... futex resumed>) = 0 [pid 21042] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21041] <... close resumed>) = 0 [pid 21040] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21037] exit_group(0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21042] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21041] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21040] <... futex resumed>) = ? [pid 21037] <... exit_group resumed>) = ? [pid 3601] <... openat resumed>) = 3 [pid 21042] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21041] <... futex resumed>) = 0 [pid 21040] +++ exited with 0 +++ [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21042] <... mprotect resumed>) = 0 [pid 21041] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21037] +++ exited with 0 +++ [pid 21042] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21041] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21037, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] close(3 [pid 21041] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] <... close resumed>) = 0 [pid 21042] <... clone resumed>, parent_tid=[21043], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21043 [pid 21041] <... mprotect resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21043 attached [pid 21042] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21041] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 21044 attached ./strace-static-x86_64: Process 21045 attached [pid 21043] set_robust_list(0x7f61a3ef39e0, 24 [pid 21042] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21044 [pid 21042] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21041] <... clone resumed>, parent_tid=[21045], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21045 [pid 21043] <... set_robust_list resumed>) = 0 [pid 21044] set_robust_list(0x555556ba76e0, 24 [pid 21041] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21043] mkdir("./file0", 0777 [pid 21041] <... futex resumed>) = 0 [pid 21044] <... set_robust_list resumed>) = 0 [pid 21043] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21041] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... openat resumed>) = 3 [pid 21043] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21045] set_robust_list(0x7f61a3ef39e0, 24 [pid 21044] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21043] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21044] <... prctl resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21043] <... futex resumed>) = 1 [pid 21042] <... futex resumed>) = 0 [pid 21044] setpgid(0, 0 [pid 21043] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21042] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21044] <... setpgid resumed>) = 0 [pid 21043] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21042] <... futex resumed>) = 0 [pid 3606] close(3 [pid 21044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21043] pipe2( [pid 21042] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... close resumed>) = 0 [pid 21044] <... openat resumed>) = 3 [pid 21043] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21044] write(3, "1000", 4 [pid 21043] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21044] <... write resumed>) = 4 [pid 21043] <... futex resumed>) = 1 [pid 21042] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21046 [pid 21044] close(3 [pid 21043] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21042] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21044] <... close resumed>) = 0 [pid 21043] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21042] <... futex resumed>) = 0 [pid 21044] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21043] dup(4 [pid 21042] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21044] <... futex resumed>) = 0 [pid 21043] <... dup resumed>) = 5 [pid 21044] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21043] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21044] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21043] <... futex resumed>) = 1 [pid 21042] <... futex resumed>) = 0 [pid 21044] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21043] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21042] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21045] <... set_robust_list resumed>) = 0 [pid 21044] <... mprotect resumed>) = 0 [pid 21043] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21042] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21046 attached [pid 21045] mkdir("./file0", 0777 [pid 21044] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21043] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21042] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21047 attached [pid 21046] set_robust_list(0x555556ba76e0, 24 [pid 21045] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21047] set_robust_list(0x7f61a3ef39e0, 24 [pid 21046] <... set_robust_list resumed>) = 0 [pid 21045] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21044] <... clone resumed>, parent_tid=[21047], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21047 [pid 21047] <... set_robust_list resumed>) = 0 [pid 21046] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21045] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21044] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21047] mkdir("./file0", 0777 [pid 21046] <... prctl resumed>) = 0 [pid 21045] <... futex resumed>) = 1 [pid 21044] <... futex resumed>) = 0 [pid 21043] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21041] <... futex resumed>) = 0 [pid 21046] setpgid(0, 0 [pid 21045] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21044] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21043] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21041] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21046] <... setpgid resumed>) = 0 [pid 21045] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21043] <... futex resumed>) = 1 [pid 21042] <... futex resumed>) = 0 [pid 21041] <... futex resumed>) = 0 [pid 21047] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21045] pipe2( [pid 21043] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21042] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21041] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21047] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21046] <... openat resumed>) = 3 [pid 21045] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21043] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21042] <... futex resumed>) = 0 [pid 21047] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21046] write(3, "1000", 4 [pid 21045] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21043] write(5, NULL, 176 [pid 21042] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21047] <... futex resumed>) = 1 [pid 21046] <... write resumed>) = 4 [pid 21045] <... futex resumed>) = 1 [pid 21044] <... futex resumed>) = 0 [pid 21043] <... write resumed>) = -1 EFAULT (Bad address) [pid 21041] <... futex resumed>) = 0 [pid 21047] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21046] close(3 [pid 21045] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21044] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21043] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21041] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21047] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21046] <... close resumed>) = 0 [pid 21045] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21044] <... futex resumed>) = 0 [pid 21043] <... futex resumed>) = 1 [pid 21042] <... futex resumed>) = 0 [pid 21041] <... futex resumed>) = 0 [pid 21047] pipe2( [pid 21046] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21045] dup(4 [pid 21044] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21043] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21042] exit_group(0 [pid 21041] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21047] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21046] <... futex resumed>) = 0 [pid 21045] <... dup resumed>) = 5 [pid 21043] <... futex resumed>) = ? [pid 21042] <... exit_group resumed>) = ? [pid 21047] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21046] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21045] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21043] +++ exited with 0 +++ [pid 21047] <... futex resumed>) = 1 [pid 21046] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21045] <... futex resumed>) = 1 [pid 21047] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21046] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21045] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21046] <... mprotect resumed>) = 0 [pid 21042] +++ exited with 0 +++ [pid 21044] <... futex resumed>) = 0 [pid 21046] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21044] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21041] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21042, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 21048 attached [pid 21047] <... futex resumed>) = 0 [pid 21044] <... futex resumed>) = 1 [pid 21041] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21047] dup(4 [pid 21046] <... clone resumed>, parent_tid=[21048], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21048 [pid 21045] <... futex resumed>) = 0 [pid 21044] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21041] <... futex resumed>) = 1 [pid 21047] <... dup resumed>) = 5 [pid 21046] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21045] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21041] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21047] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21046] <... futex resumed>) = 0 [pid 21047] <... futex resumed>) = 1 [pid 21046] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21047] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21044] <... futex resumed>) = 0 [pid 21048] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21048] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21044] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21048] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21047] <... futex resumed>) = 0 [pid 21044] <... futex resumed>) = 1 [pid 21048] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21047] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21044] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21048] <... futex resumed>) = 1 [pid 21046] <... futex resumed>) = 0 [pid 21048] pipe2( [pid 21046] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21048] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21046] <... futex resumed>) = 0 [pid 21048] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21046] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21048] <... futex resumed>) = 0 [pid 21046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21048] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21046] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 21048] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21046] <... futex resumed>) = 0 [pid 21048] dup(4 [pid 21046] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21048] <... dup resumed>) = 5 [pid 21048] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21046] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21048] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21046] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 21048] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21046] <... futex resumed>) = 0 [pid 21048] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21046] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 21049 ./strace-static-x86_64: Process 21049 attached [pid 21045] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21049] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21045] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21041] <... futex resumed>) = 0 [pid 21047] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21045] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21041] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21047] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21045] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21041] <... futex resumed>) = 0 [pid 21047] <... futex resumed>) = 1 [pid 21045] write(5, NULL, 176 [pid 21044] <... futex resumed>) = 0 [pid 21041] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21048] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21047] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21045] <... write resumed>) = -1 EFAULT (Bad address) [pid 21044] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21047] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21044] <... futex resumed>) = 0 [pid 21048] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21049] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21047] write(5, NULL, 176 [pid 21045] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21044] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21049] <... prctl resumed>) = 0 [pid 21048] <... futex resumed>) = 1 [pid 21047] <... write resumed>) = -1 EFAULT (Bad address) [pid 21046] <... futex resumed>) = 0 [pid 21045] <... futex resumed>) = 1 [pid 21041] <... futex resumed>) = 0 [pid 21049] setpgid(0, 0 [pid 21048] write(5, NULL, 176 [pid 21047] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21046] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21045] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21041] exit_group(0 [pid 21049] <... setpgid resumed>) = 0 [pid 21048] <... write resumed>) = -1 EFAULT (Bad address) [pid 21047] <... futex resumed>) = 1 [pid 21046] <... futex resumed>) = 0 [pid 21045] <... futex resumed>) = ? [pid 21044] <... futex resumed>) = 0 [pid 21041] <... exit_group resumed>) = ? [pid 21049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21048] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21047] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21046] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21045] +++ exited with 0 +++ [pid 21044] exit_group(0 [pid 21049] <... openat resumed>) = 3 [pid 21046] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21049] write(3, "1000", 4 [pid 21046] exit_group(0 [pid 21044] <... exit_group resumed>) = ? [pid 21041] +++ exited with 0 +++ [pid 21047] <... futex resumed>) = ? [pid 21049] <... write resumed>) = 4 [pid 21048] <... futex resumed>) = ? [pid 21046] <... exit_group resumed>) = ? [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21041, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21049] close(3) = 0 [pid 21049] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21049] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21047] +++ exited with 0 +++ [pid 21044] +++ exited with 0 +++ [pid 21049] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 21049] <... mprotect resumed>) = 0 [pid 21049] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... restart_syscall resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21044, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21049] <... clone resumed>, parent_tid=[21050], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21050 [pid 21049] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21049] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21048] +++ exited with 0 +++ [pid 21046] +++ exited with 0 +++ [pid 3607] <... openat resumed>) = 3 [pid 3601] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21046, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... restart_syscall resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 3601] close(3 [pid 3607] <... close resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3./strace-static-x86_64: Process 21052 attached ./strace-static-x86_64: Process 21051 attached ./strace-static-x86_64: Process 21050 attached [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21051 [pid 3606] <... close resumed>) = 0 [pid 21052] set_robust_list(0x555556ba76e0, 24 [pid 21051] set_robust_list(0x555556ba76e0, 24 [pid 21050] set_robust_list(0x7f61a3ef39e0, 24 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21052 ./strace-static-x86_64: Process 21053 attached [pid 21052] <... set_robust_list resumed>) = 0 [pid 21051] <... set_robust_list resumed>) = 0 [pid 21050] <... set_robust_list resumed>) = 0 [pid 21053] set_robust_list(0x555556ba76e0, 24 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21053 [pid 21053] <... set_robust_list resumed>) = 0 [pid 21052] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21053] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21052] <... prctl resumed>) = 0 [pid 21053] <... prctl resumed>) = 0 [pid 21052] setpgid(0, 0 [pid 21053] setpgid(0, 0 [pid 21052] <... setpgid resumed>) = 0 [pid 21051] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21050] mkdir("./file0", 0777 [pid 21053] <... setpgid resumed>) = 0 [pid 21053] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21052] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21051] <... prctl resumed>) = 0 [pid 21050] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21053] <... openat resumed>) = 3 [pid 21053] write(3, "1000", 4) = 4 [pid 21052] <... openat resumed>) = 3 [pid 21051] setpgid(0, 0 [pid 21050] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21053] close(3 [pid 21052] write(3, "1000", 4 [pid 21051] <... setpgid resumed>) = 0 [pid 21053] <... close resumed>) = 0 [pid 21052] <... write resumed>) = 4 [pid 21050] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21053] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21052] close(3 [pid 21051] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21050] <... futex resumed>) = 1 [pid 21049] <... futex resumed>) = 0 [pid 21053] <... futex resumed>) = 0 [pid 21052] <... close resumed>) = 0 [pid 21051] <... openat resumed>) = 3 [pid 21050] pipe2( [pid 21049] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21053] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21052] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21051] write(3, "1000", 4 [pid 21050] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21049] <... futex resumed>) = 0 [pid 21053] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21052] <... futex resumed>) = 0 [pid 21051] <... write resumed>) = 4 [pid 21050] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21049] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21053] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21052] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21051] close(3 [pid 21050] <... futex resumed>) = 0 [pid 21049] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21053] <... mprotect resumed>) = 0 [pid 21052] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21051] <... close resumed>) = 0 [pid 21050] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21049] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21053] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21052] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21051] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21050] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21049] <... futex resumed>) = 0 [pid 21052] <... mprotect resumed>) = 0 [pid 21051] <... futex resumed>) = 0 [pid 21050] dup(4 [pid 21049] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21053] <... clone resumed>, parent_tid=[21054], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21054 [pid 21052] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21051] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21050] <... dup resumed>) = 5 [pid 21053] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21050] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21051] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21053] <... futex resumed>) = 0 [pid 21052] <... clone resumed>, parent_tid=[21055], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21055 [pid 21051] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21050] <... futex resumed>) = 1 [pid 21049] <... futex resumed>) = 0 [pid 21053] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21052] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21051] <... mprotect resumed>) = 0 [pid 21049] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21052] <... futex resumed>) = 0 [pid 21050] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21049] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21054 attached [pid 21052] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21051] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21049] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21054] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21054] mkdir("./file0", 0777 [pid 21051] <... clone resumed>, parent_tid=[21056], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21056 [pid 21051] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21055 attached [pid 21054] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21051] <... futex resumed>) = 0 [pid 21055] set_robust_list(0x7f61a3ef39e0, 24 [pid 21054] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21051] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21055] <... set_robust_list resumed>) = 0 [pid 21054] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21055] mkdir("./file0", 0777 [pid 21054] <... futex resumed>) = 1 [pid 21053] <... futex resumed>) = 0 [pid 21055] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21054] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21053] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21055] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21053] <... futex resumed>) = 0 [pid 21055] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21054] pipe2( [pid 21053] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21055] <... futex resumed>) = 1 [pid 21054] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21052] <... futex resumed>) = 0 [pid 21055] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21054] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21052] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21054] <... futex resumed>) = 1 [pid 21053] <... futex resumed>) = 0 [pid 21052] <... futex resumed>) = 0 [pid 21055] pipe2( [pid 21054] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21053] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21052] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21055] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21053] <... futex resumed>) = 0 [pid 21055] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21054] dup(4 [pid 21053] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21055] <... futex resumed>) = 1 [pid 21054] <... dup resumed>) = 5 [pid 21052] <... futex resumed>) = 0 [pid 21055] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21054] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21052] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21054] <... futex resumed>) = 1 [pid 21053] <... futex resumed>) = 0 [pid 21052] <... futex resumed>) = 0 [pid 21055] dup(4 [pid 21054] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21053] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21052] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21050] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21055] <... dup resumed>) = 5 [pid 21054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21053] <... futex resumed>) = 0 [pid 21050] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21055] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21054] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21053] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21050] <... futex resumed>) = 1 [pid 21049] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21056 attached [pid 21055] <... futex resumed>) = 1 [pid 21052] <... futex resumed>) = 0 [pid 21050] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21056] set_robust_list(0x7f61a3ef39e0, 24 [pid 21055] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21052] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21049] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21056] <... set_robust_list resumed>) = 0 [pid 21056] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21056] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21056] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21051] <... futex resumed>) = 0 [pid 21056] pipe2( [pid 21051] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21056] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21052] <... futex resumed>) = 0 [pid 21051] <... futex resumed>) = 0 [pid 21050] <... futex resumed>) = 0 [pid 21049] <... futex resumed>) = 1 [pid 21056] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21055] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21052] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21051] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21050] write(5, NULL, 176 [pid 21049] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21056] <... futex resumed>) = 0 [pid 21051] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21050] <... write resumed>) = -1 EFAULT (Bad address) [pid 21056] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21051] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21050] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21056] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21051] <... futex resumed>) = 0 [pid 21050] <... futex resumed>) = 1 [pid 21049] <... futex resumed>) = 0 [pid 21056] dup(4 [pid 21051] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21050] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21049] exit_group(0 [pid 21056] <... dup resumed>) = 5 [pid 21050] <... futex resumed>) = ? [pid 21049] <... exit_group resumed>) = ? [pid 21056] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21050] +++ exited with 0 +++ [pid 21056] <... futex resumed>) = 1 [pid 21051] <... futex resumed>) = 0 [pid 21056] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21051] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21056] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21051] <... futex resumed>) = 0 [pid 21056] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21051] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21049] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21049, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3604] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 21056] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21056] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21051] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21056] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21051] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 21056] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21051] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21056] write(5, NULL, 176 [pid 21051] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21056] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] close(3 [pid 21056] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 21056] <... futex resumed>) = 1 [pid 21051] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21056] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21051] exit_group(0 [pid 21056] <... futex resumed>) = ? [pid 21051] <... exit_group resumed>) = ? [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21057 ./strace-static-x86_64: Process 21057 attached [pid 21056] +++ exited with 0 +++ [pid 21055] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21054] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21051] +++ exited with 0 +++ [pid 21055] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21054] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21051, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21057] set_robust_list(0x555556ba76e0, 24 [pid 21055] <... futex resumed>) = 1 [pid 21054] <... futex resumed>) = 1 [pid 21053] <... futex resumed>) = 0 [pid 21052] <... futex resumed>) = 0 [pid 21057] <... set_robust_list resumed>) = 0 [pid 21055] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21054] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21053] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21052] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21057] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21055] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21054] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21053] <... futex resumed>) = 0 [pid 21052] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21057] <... prctl resumed>) = 0 [pid 21055] write(5, NULL, 176 [pid 21054] write(5, NULL, 176 [pid 21053] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21052] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... openat resumed>) = 3 [pid 21057] setpgid(0, 0 [pid 21055] <... write resumed>) = -1 EFAULT (Bad address) [pid 21054] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21057] <... setpgid resumed>) = 0 [pid 21055] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21054] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21057] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21055] <... futex resumed>) = 1 [pid 21054] <... futex resumed>) = 1 [pid 21053] <... futex resumed>) = 0 [pid 21052] <... futex resumed>) = 0 [pid 3607] close(3 [pid 21055] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21054] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21053] exit_group(0 [pid 21052] exit_group(0 [pid 3607] <... close resumed>) = 0 [pid 21053] <... exit_group resumed>) = ? [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 21058 ./strace-static-x86_64: Process 21058 attached [pid 21058] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21058] setpgid(0, 0) = 0 [pid 21058] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21058] write(3, "1000", 4) = 4 [pid 21058] close(3) = 0 [pid 21058] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21058] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21058] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21058] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21055] <... futex resumed>) = ? [pid 21054] <... futex resumed>) = ? [pid 21052] <... exit_group resumed>) = ? [pid 21055] +++ exited with 0 +++ [pid 21058] <... clone resumed>, parent_tid=[21059], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21059 [pid 21054] +++ exited with 0 +++ [pid 21053] +++ exited with 0 +++ [pid 21058] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21052] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21053, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21058] <... futex resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21052, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21058] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... restart_syscall resumed>) = 0 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 21057] <... openat resumed>) = 3 [pid 3601] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 21059 attached [pid 21057] write(3, "1000", 4 [pid 21059] set_robust_list(0x7f61a3ef39e0, 24 [pid 21057] <... write resumed>) = 4 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21059] <... set_robust_list resumed>) = 0 [pid 21057] close(3 [pid 3606] <... openat resumed>) = 3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21059] mkdir("./file0", 0777 [pid 21057] <... close resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3601] <... openat resumed>) = 3 [pid 21059] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21057] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21059] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21057] <... futex resumed>) = 0 [pid 3606] close(3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21057] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] <... close resumed>) = 0 [pid 3601] close(3 [pid 21057] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... close resumed>) = 0 [pid 21057] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21059] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21057] <... mprotect resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21060 [pid 21059] <... futex resumed>) = 1 [pid 21058] <... futex resumed>) = 0 [pid 21057] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21061 [pid 21059] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21058] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21058] <... futex resumed>) = 0 [pid 21057] <... clone resumed>, parent_tid=[21062], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21062 [pid 21059] pipe2( [pid 21058] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21057] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21059] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21057] <... futex resumed>) = 0 [pid 21059] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21057] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21060 attached [pid 21059] <... futex resumed>) = 1 [pid 21058] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21061 attached [pid 21060] set_robust_list(0x555556ba76e0, 24 [pid 21059] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21058] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21061] set_robust_list(0x555556ba76e0, 24 [pid 21060] <... set_robust_list resumed>) = 0 [pid 21059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21058] <... futex resumed>) = 0 [pid 21061] <... set_robust_list resumed>) = 0 [pid 21060] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21059] dup(4 [pid 21058] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21061] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21060] <... prctl resumed>) = 0 [pid 21059] <... dup resumed>) = 5 ./strace-static-x86_64: Process 21062 attached [pid 21061] <... prctl resumed>) = 0 [pid 21060] setpgid(0, 0 [pid 21059] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21061] setpgid(0, 0 [pid 21060] <... setpgid resumed>) = 0 [pid 21059] <... futex resumed>) = 1 [pid 21058] <... futex resumed>) = 0 [pid 21062] set_robust_list(0x7f61a3ef39e0, 24 [pid 21061] <... setpgid resumed>) = 0 [pid 21060] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21059] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21058] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21062] <... set_robust_list resumed>) = 0 [pid 21061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21060] <... openat resumed>) = 3 [pid 21059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21058] <... futex resumed>) = 0 [pid 21061] <... openat resumed>) = 3 [pid 21060] write(3, "1000", 4 [pid 21058] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21061] write(3, "1000", 4 [pid 21060] <... write resumed>) = 4 [pid 21061] <... write resumed>) = 4 [pid 21060] close(3 [pid 21061] close(3 [pid 21060] <... close resumed>) = 0 [pid 21061] <... close resumed>) = 0 [pid 21060] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21062] mkdir("./file0", 0777 [pid 21061] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21060] <... futex resumed>) = 0 [pid 21059] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21062] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21061] <... futex resumed>) = 0 [pid 21060] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21061] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21060] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21061] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21060] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21061] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21060] <... mprotect resumed>) = 0 [pid 21061] <... mprotect resumed>) = 0 [pid 21060] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21062] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21061] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21060] <... clone resumed>, parent_tid=[21063], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21063 [pid 21061] <... clone resumed>, parent_tid=[21064], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21064 [pid 21060] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21061] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21060] <... futex resumed>) = 0 [pid 21061] <... futex resumed>) = 0 [pid 21060] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21061] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21063 attached [pid 21063] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21063] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21063] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21063] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21060] <... futex resumed>) = 0 [pid 21063] pipe2( [pid 21060] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21063] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21060] <... futex resumed>) = 0 [pid 21063] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21060] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21063] <... futex resumed>) = 0 [pid 21060] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21063] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21060] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21063] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21060] <... futex resumed>) = 0 [pid 21063] dup(4 [pid 21060] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21063] <... dup resumed>) = 5 [pid 21063] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21060] <... futex resumed>) = 0 [pid 21063] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21060] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21063] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21060] <... futex resumed>) = 0 [pid 21063] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21062] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21060] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21062] <... futex resumed>) = 1 [pid 21057] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21064 attached [pid 21062] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21057] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21062] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21057] <... futex resumed>) = 0 [pid 21062] pipe2( [pid 21064] set_robust_list(0x7f61a3ef39e0, 24 [pid 21062] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21057] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21062] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21064] <... set_robust_list resumed>) = 0 [pid 21062] <... futex resumed>) = 0 [pid 21057] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21062] dup(4 [pid 21057] <... futex resumed>) = 0 [pid 21062] <... dup resumed>) = 5 [pid 21057] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21062] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21057] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21062] <... futex resumed>) = 0 [pid 21057] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21064] mkdir("./file0", 0777 [pid 21062] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21057] <... futex resumed>) = 0 [pid 21064] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21064] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21057] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21064] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21061] <... futex resumed>) = 0 [pid 21064] pipe2( [pid 21061] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21064] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21061] <... futex resumed>) = 0 [pid 21064] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21061] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21064] <... futex resumed>) = 0 [pid 21061] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21064] dup(4 [pid 21061] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21064] <... dup resumed>) = 5 [pid 21061] <... futex resumed>) = 0 [pid 21064] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21061] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21064] <... futex resumed>) = 0 [pid 21061] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21059] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21064] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21061] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21064] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21061] <... futex resumed>) = 0 [pid 21064] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21061] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21059] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21058] <... futex resumed>) = 0 [pid 21063] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21059] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21058] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21063] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21059] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21058] <... futex resumed>) = 0 [pid 21063] <... futex resumed>) = 1 [pid 21060] <... futex resumed>) = 0 [pid 21059] write(5, NULL, 176 [pid 21058] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21063] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21060] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21059] <... write resumed>) = -1 EFAULT (Bad address) [pid 21063] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21060] <... futex resumed>) = 0 [pid 21060] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21063] write(5, NULL, 176 [pid 21062] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21059] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21063] <... write resumed>) = -1 EFAULT (Bad address) [pid 21062] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21063] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21062] <... futex resumed>) = 1 [pid 21059] <... futex resumed>) = 1 [pid 21058] <... futex resumed>) = 0 [pid 21057] <... futex resumed>) = 0 [pid 21063] <... futex resumed>) = 1 [pid 21062] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21060] <... futex resumed>) = 0 [pid 21059] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21058] exit_group(0 [pid 21057] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21063] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21062] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21060] exit_group(0 [pid 21059] <... futex resumed>) = ? [pid 21058] <... exit_group resumed>) = ? [pid 21057] <... futex resumed>) = 0 [pid 21063] <... futex resumed>) = ? [pid 21062] write(5, NULL, 176 [pid 21060] <... exit_group resumed>) = ? [pid 21059] +++ exited with 0 +++ [pid 21057] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21063] +++ exited with 0 +++ [pid 21062] <... write resumed>) = -1 EFAULT (Bad address) [pid 21062] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21057] <... futex resumed>) = 0 [pid 21062] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21058] +++ exited with 0 +++ [pid 21057] exit_group(0 [pid 21062] <... futex resumed>) = ? [pid 21057] <... exit_group resumed>) = ? [pid 21064] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21062] +++ exited with 0 +++ [pid 21060] +++ exited with 0 +++ [pid 21057] +++ exited with 0 +++ [pid 21064] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21058, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21061] <... futex resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21060, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21057, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21064] <... futex resumed>) = 1 [pid 21064] write(5, NULL, 176 [pid 21061] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 21064] <... write resumed>) = -1 EFAULT (Bad address) [pid 21061] <... futex resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 21064] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21061] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21064] <... futex resumed>) = 0 [pid 21061] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21064] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21061] exit_group(0 [pid 3607] <... openat resumed>) = 3 [pid 21061] <... exit_group resumed>) = ? [pid 21064] <... futex resumed>) = ? [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... openat resumed>) = 3 [pid 3607] close(3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... openat resumed>) = 3 [pid 21064] +++ exited with 0 +++ [pid 21061] +++ exited with 0 +++ [pid 3607] <... close resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] close(3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21061, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] <... close resumed>) = 0 [pid 3604] close(3 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21065 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21066 [pid 3601] <... openat resumed>) = 3 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21067 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 21068 ./strace-static-x86_64: Process 21067 attached ./strace-static-x86_64: Process 21066 attached ./strace-static-x86_64: Process 21065 attached [pid 21067] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21067] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 21068 attached ) = 0 [pid 21068] set_robust_list(0x555556ba76e0, 24 [pid 21067] setpgid(0, 0 [pid 21068] <... set_robust_list resumed>) = 0 [pid 21067] <... setpgid resumed>) = 0 [pid 21068] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21067] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21068] <... prctl resumed>) = 0 [pid 21067] <... openat resumed>) = 3 [pid 21068] setpgid(0, 0 [pid 21067] write(3, "1000", 4 [pid 21068] <... setpgid resumed>) = 0 [pid 21067] <... write resumed>) = 4 [pid 21066] set_robust_list(0x555556ba76e0, 24 [pid 21065] set_robust_list(0x555556ba76e0, 24 [pid 21068] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21067] close(3 [pid 21068] <... openat resumed>) = 3 [pid 21067] <... close resumed>) = 0 [pid 21068] write(3, "1000", 4 [pid 21067] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21068] <... write resumed>) = 4 [pid 21067] <... futex resumed>) = 0 [pid 21068] close(3 [pid 21067] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21066] <... set_robust_list resumed>) = 0 [pid 21065] <... set_robust_list resumed>) = 0 [pid 21068] <... close resumed>) = 0 [pid 21067] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21066] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21065] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21068] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21067] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21066] <... prctl resumed>) = 0 [pid 21065] <... prctl resumed>) = 0 [pid 21068] <... futex resumed>) = 0 [pid 21067] <... mprotect resumed>) = 0 [pid 21066] setpgid(0, 0 [pid 21065] setpgid(0, 0 [pid 21068] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21067] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21066] <... setpgid resumed>) = 0 [pid 21065] <... setpgid resumed>) = 0 [pid 21068] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 21069 attached [pid 21068] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21067] <... clone resumed>, parent_tid=[21069], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21069 [pid 21066] <... openat resumed>) = 3 [pid 21065] <... openat resumed>) = 3 [pid 21069] set_robust_list(0x7f61a3ef39e0, 24 [pid 21068] <... mprotect resumed>) = 0 [pid 21067] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21066] write(3, "1000", 4 [pid 21065] write(3, "1000", 4 [pid 21068] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21067] <... futex resumed>) = 0 [pid 21066] <... write resumed>) = 4 [pid 21065] <... write resumed>) = 4 [pid 21067] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21066] close(3 [pid 21065] close(3 [pid 21068] <... clone resumed>, parent_tid=[21070], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21070 [pid 21066] <... close resumed>) = 0 [pid 21065] <... close resumed>) = 0 [pid 21069] <... set_robust_list resumed>) = 0 [pid 21068] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21066] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21065] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21069] mkdir("./file0", 0777 [pid 21068] <... futex resumed>) = 0 [pid 21066] <... futex resumed>) = 0 [pid 21065] <... futex resumed>) = 0 [pid 21069] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21068] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21066] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21065] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 21070 attached [pid 21069] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21066] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21065] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21066] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21065] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21069] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21066] <... mprotect resumed>) = 0 [pid 21065] <... mprotect resumed>) = 0 [pid 21070] set_robust_list(0x7f61a3ef39e0, 24 [pid 21069] <... futex resumed>) = 1 [pid 21067] <... futex resumed>) = 0 [pid 21066] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21065] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21070] <... set_robust_list resumed>) = 0 [pid 21069] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21067] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21070] mkdir("./file0", 0777 [pid 21069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21067] <... futex resumed>) = 0 [pid 21066] <... clone resumed>, parent_tid=[21071], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21071 [pid 21065] <... clone resumed>, parent_tid=[21072], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21072 [pid 21070] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21069] pipe2( [pid 21067] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21066] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21065] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21070] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21069] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21066] <... futex resumed>) = 0 [pid 21065] <... futex resumed>) = 0 [pid 21070] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21069] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21066] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21065] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21070] <... futex resumed>) = 1 [pid 21069] <... futex resumed>) = 1 [pid 21068] <... futex resumed>) = 0 [pid 21067] <... futex resumed>) = 0 [pid 21070] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21069] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21068] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21067] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21068] <... futex resumed>) = 0 [pid 21067] <... futex resumed>) = 0 [pid 21070] pipe2( [pid 21069] dup(4 [pid 21068] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21067] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21070] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21069] <... dup resumed>) = 5 [pid 21070] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21069] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21067] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21072 attached ./strace-static-x86_64: Process 21071 attached [pid 21070] <... futex resumed>) = 1 [pid 21069] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21068] <... futex resumed>) = 0 [pid 21067] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21072] set_robust_list(0x7f61a3ef39e0, 24 [pid 21071] set_robust_list(0x7f61a3ef39e0, 24 [pid 21070] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21068] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21067] <... futex resumed>) = 0 [pid 21072] <... set_robust_list resumed>) = 0 [pid 21071] <... set_robust_list resumed>) = 0 [pid 21070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21069] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21068] <... futex resumed>) = 0 [pid 21067] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21072] mkdir("./file0", 0777 [pid 21070] dup(4 [pid 21072] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21068] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21072] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21072] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21065] <... futex resumed>) = 0 [pid 21072] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21065] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21072] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21070] <... dup resumed>) = 5 [pid 21065] <... futex resumed>) = 0 [pid 21072] pipe2( [pid 21065] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21071] mkdir("./file0", 0777 [pid 21070] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21072] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21071] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21070] <... futex resumed>) = 1 [pid 21068] <... futex resumed>) = 0 [pid 21072] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21071] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21070] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21068] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21072] <... futex resumed>) = 1 [pid 21071] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21068] <... futex resumed>) = 0 [pid 21065] <... futex resumed>) = 0 [pid 21071] <... futex resumed>) = 1 [pid 21070] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21068] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21071] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21072] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21066] <... futex resumed>) = 0 [pid 21072] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21065] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21066] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21072] dup(4) = 5 [pid 21065] <... futex resumed>) = 0 [pid 21072] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21071] <... futex resumed>) = 0 [pid 21066] <... futex resumed>) = 1 [pid 21072] <... futex resumed>) = 0 [pid 21071] pipe2( [pid 21066] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21065] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21072] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21071] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21071] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21065] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21072] <... futex resumed>) = 0 [pid 21071] <... futex resumed>) = 1 [pid 21066] <... futex resumed>) = 0 [pid 21065] <... futex resumed>) = 1 [pid 21072] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21071] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21066] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21065] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21066] <... futex resumed>) = 0 [pid 21071] dup(4 [pid 21070] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21069] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21066] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21071] <... dup resumed>) = 5 [pid 21070] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21069] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21070] <... futex resumed>) = 1 [pid 21069] <... futex resumed>) = 1 [pid 21071] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21068] <... futex resumed>) = 0 [pid 21067] <... futex resumed>) = 0 [pid 21071] <... futex resumed>) = 1 [pid 21070] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21069] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21068] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21067] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21066] <... futex resumed>) = 0 [pid 21071] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21070] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21069] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21070] write(5, NULL, 176 [pid 21069] write(5, NULL, 176 [pid 21070] <... write resumed>) = -1 EFAULT (Bad address) [pid 21069] <... write resumed>) = -1 EFAULT (Bad address) [pid 21070] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21069] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21070] <... futex resumed>) = 0 [pid 21069] <... futex resumed>) = 0 [pid 21070] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21069] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21070] <... futex resumed>) = 0 [pid 21068] <... futex resumed>) = 1 [pid 21067] <... futex resumed>) = 1 [pid 21071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21066] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21069] <... futex resumed>) = 0 [pid 21071] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21070] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21069] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21068] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21067] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21066] <... futex resumed>) = 0 [pid 21072] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21068] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21067] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21066] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21068] exit_group(0 [pid 21070] <... futex resumed>) = ? [pid 21068] <... exit_group resumed>) = ? [pid 21072] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21070] +++ exited with 0 +++ [pid 21068] +++ exited with 0 +++ [pid 21067] exit_group(0 [pid 21072] <... futex resumed>) = 1 [pid 21069] <... futex resumed>) = ? [pid 21067] <... exit_group resumed>) = ? [pid 21065] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21068, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21072] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21069] +++ exited with 0 +++ [pid 21067] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21067, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 21065] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21072] <... futex resumed>) = 0 [pid 21065] <... futex resumed>) = 1 [pid 3604] <... openat resumed>) = 3 [pid 21072] write(5, NULL, 176 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21073 ./strace-static-x86_64: Process 21073 attached [pid 21072] <... write resumed>) = -1 EFAULT (Bad address) [pid 21071] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21065] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21073] set_robust_list(0x555556ba76e0, 24 [pid 21072] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21071] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21065] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] close(3 [pid 21073] <... set_robust_list resumed>) = 0 [pid 21072] <... futex resumed>) = 0 [pid 21071] <... futex resumed>) = 1 [pid 21066] <... futex resumed>) = 0 [pid 21065] exit_group(0 [pid 3604] <... close resumed>) = 0 [pid 21073] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21071] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21066] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21065] <... exit_group resumed>) = ? [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21073] <... prctl resumed>) = 0 [pid 21072] +++ exited with 0 +++ [pid 21071] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21066] <... futex resumed>) = 0 [pid 21065] +++ exited with 0 +++ [pid 21073] setpgid(0, 0 [pid 21071] write(5, NULL, 176 [pid 21066] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21073] <... setpgid resumed>) = 0 [pid 21071] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21065, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21074 ./strace-static-x86_64: Process 21074 attached [pid 21073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21071] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21074] set_robust_list(0x555556ba76e0, 24 [pid 21073] <... openat resumed>) = 3 [pid 21071] <... futex resumed>) = 1 [pid 21066] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 21073] write(3, "1000", 4 [pid 21071] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21066] exit_group(0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21074] <... set_robust_list resumed>) = 0 [pid 21073] <... write resumed>) = 4 [pid 21071] <... futex resumed>) = ? [pid 21066] <... exit_group resumed>) = ? [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21073] close(3 [pid 21071] +++ exited with 0 +++ [pid 21073] <... close resumed>) = 0 [pid 21073] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21073] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21073] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21066] +++ exited with 0 +++ [pid 21074] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21073] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] close(3 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21066, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 21075 attached [pid 21074] <... prctl resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 21075] set_robust_list(0x7f61a3ef39e0, 24 [pid 21074] setpgid(0, 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21075] <... set_robust_list resumed>) = 0 [pid 21074] <... setpgid resumed>) = 0 [pid 21073] <... clone resumed>, parent_tid=[21075], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21075 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 21075] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21074] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21073] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21076 [pid 3606] <... restart_syscall resumed>) = 0 [pid 21075] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21074] <... openat resumed>) = 3 [pid 21073] <... futex resumed>) = 0 [pid 21075] mkdir("./file0", 0777 [pid 21074] write(3, "1000", 4 [pid 21073] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21075] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21074] <... write resumed>) = 4 [pid 21075] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21074] close(3 [pid 21075] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21074] <... close resumed>) = 0 [pid 21073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21075] <... futex resumed>) = 0 [pid 21074] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21073] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 21075] pipe2( [pid 21074] <... futex resumed>) = 0 [pid 21073] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 21076 attached [pid 21075] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21074] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21073] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21075] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21074] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21076] set_robust_list(0x555556ba76e0, 24 [pid 21073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] close(3 [pid 21076] <... set_robust_list resumed>) = 0 [pid 21075] <... futex resumed>) = 0 [pid 21074] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21073] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21075] dup(4 [pid 21074] <... mprotect resumed>) = 0 [pid 21073] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 21075] <... dup resumed>) = 5 [pid 21074] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21073] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21076] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21075] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21075] <... futex resumed>) = 0 [pid 21074] <... clone resumed>, parent_tid=[21077], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21077 [pid 21073] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21076] <... prctl resumed>) = 0 [pid 21075] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21074] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21073] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21078 ./strace-static-x86_64: Process 21078 attached [pid 21076] setpgid(0, 0 [pid 21074] <... futex resumed>) = 0 [pid 21073] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21076] <... setpgid resumed>) = 0 [pid 21074] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21076] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 21077 attached ) = 3 [pid 21077] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21077] mkdir("./file0", 0777 [pid 21076] write(3, "1000", 4 [pid 21078] set_robust_list(0x555556ba76e0, 24 [pid 21076] <... write resumed>) = 4 [pid 21078] <... set_robust_list resumed>) = 0 [pid 21076] close(3 [pid 21077] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21076] <... close resumed>) = 0 [pid 21078] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21077] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21078] <... prctl resumed>) = 0 [pid 21076] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21078] setpgid(0, 0 [pid 21077] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21076] <... futex resumed>) = 0 [pid 21078] <... setpgid resumed>) = 0 [pid 21077] <... futex resumed>) = 1 [pid 21076] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21074] <... futex resumed>) = 0 [pid 21077] pipe2( [pid 21076] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21074] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21078] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21077] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21076] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21074] <... futex resumed>) = 0 [pid 21078] <... openat resumed>) = 3 [pid 21077] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21076] <... mprotect resumed>) = 0 [pid 21074] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21078] write(3, "1000", 4 [pid 21077] <... futex resumed>) = 0 [pid 21076] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21074] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21078] <... write resumed>) = 4 [pid 21077] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21074] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21078] close(3 [pid 21077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21076] <... clone resumed>, parent_tid=[21079], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21079 [pid 21075] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21074] <... futex resumed>) = 0 [pid 21078] <... close resumed>) = 0 [pid 21077] dup(4 [pid 21076] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21075] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21074] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21078] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21077] <... dup resumed>) = 5 [pid 21076] <... futex resumed>) = 0 [pid 21075] <... futex resumed>) = 1 [pid 21073] <... futex resumed>) = 0 [pid 21078] <... futex resumed>) = 0 [pid 21077] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21076] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21075] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21073] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21079 attached [pid 21078] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21077] <... futex resumed>) = 1 [pid 21075] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21074] <... futex resumed>) = 0 [pid 21073] <... futex resumed>) = 0 [pid 21079] set_robust_list(0x7f61a3ef39e0, 24 [pid 21078] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21077] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21075] write(5, NULL, 176 [pid 21074] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21079] <... set_robust_list resumed>) = 0 [pid 21078] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21075] <... write resumed>) = -1 EFAULT (Bad address) [pid 21074] <... futex resumed>) = 0 [pid 21073] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21079] mkdir("./file0", 0777 [pid 21078] <... mprotect resumed>) = 0 [pid 21077] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21075] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21074] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21073] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21079] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21078] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21075] <... futex resumed>) = 0 [pid 21079] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21075] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21079] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21076] <... futex resumed>) = 0 [pid 21079] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21076] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21073] exit_group(0 [pid 21079] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21079] pipe2( [pid 21076] <... futex resumed>) = 0 [pid 21075] <... futex resumed>) = ? [pid 21073] <... exit_group resumed>) = ? [pid 21078] <... clone resumed>, parent_tid=[21080], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21080 [pid 21079] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21076] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21075] +++ exited with 0 +++ [pid 21079] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21073] +++ exited with 0 +++ [pid 21079] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21078] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21076] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) ./strace-static-x86_64: Process 21080 attached [pid 21078] <... futex resumed>) = 0 [pid 21076] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21073, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21080] set_robust_list(0x7f61a3ef39e0, 24 [pid 21079] <... futex resumed>) = 0 [pid 21078] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21076] <... futex resumed>) = 1 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 21080] <... set_robust_list resumed>) = 0 [pid 21079] dup(4 [pid 21076] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... restart_syscall resumed>) = 0 [pid 21080] mkdir("./file0", 0777 [pid 21079] <... dup resumed>) = 5 [pid 21080] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21079] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21080] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21079] <... futex resumed>) = 1 [pid 21076] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21080] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21079] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21076] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 21080] <... futex resumed>) = 1 [pid 21079] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21078] <... futex resumed>) = 0 [pid 21077] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21076] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21080] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21079] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21078] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21077] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21076] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21078] <... futex resumed>) = 0 [pid 21077] <... futex resumed>) = 1 [pid 21074] <... futex resumed>) = 0 [pid 21080] pipe2( [pid 21078] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21077] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21074] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 21080] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21077] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21074] <... futex resumed>) = 0 [pid 21080] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21077] write(5, NULL, 176 [pid 21074] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... close resumed>) = 0 [pid 21080] <... futex resumed>) = 1 [pid 21078] <... futex resumed>) = 0 [pid 21077] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21080] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21079] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21078] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21077] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21078] <... futex resumed>) = 0 [pid 21080] dup(4 [pid 21078] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21077] <... futex resumed>) = 1 [pid 21074] <... futex resumed>) = 0 [pid 21079] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21080] <... dup resumed>) = 5 [pid 21077] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21074] exit_group(0 [pid 21076] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21081 [pid 21079] <... futex resumed>) = 1 [pid 21080] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21077] <... futex resumed>) = ? [pid 21076] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21074] <... exit_group resumed>) = ? [pid 21079] write(5, NULL, 176./strace-static-x86_64: Process 21081 attached [pid 21080] <... futex resumed>) = 1 [pid 21078] <... futex resumed>) = 0 [pid 21077] +++ exited with 0 +++ [pid 21076] <... futex resumed>) = 0 [pid 21081] set_robust_list(0x555556ba76e0, 24 [pid 21080] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21078] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21081] <... set_robust_list resumed>) = 0 [pid 21080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21078] <... futex resumed>) = 0 [pid 21076] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21074] +++ exited with 0 +++ [pid 21079] <... write resumed>) = -1 EFAULT (Bad address) [pid 21081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21080] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21079] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21078] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21074, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21081] <... prctl resumed>) = 0 [pid 21079] <... futex resumed>) = 1 [pid 21076] <... futex resumed>) = 0 [pid 21079] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21076] exit_group(0 [pid 21079] <... futex resumed>) = ? [pid 21076] <... exit_group resumed>) = ? [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21079] +++ exited with 0 +++ [pid 21076] +++ exited with 0 +++ [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21076, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21081] setpgid(0, 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21081] <... setpgid resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21082 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3./strace-static-x86_64: Process 21082 attached [pid 21081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] <... close resumed>) = 0 [pid 21081] <... openat resumed>) = 3 [pid 21080] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21082] set_robust_list(0x555556ba76e0, 24 [pid 21081] write(3, "1000", 4 [pid 21080] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21081] <... write resumed>) = 4 [pid 21082] <... set_robust_list resumed>) = 0 [pid 21081] close(3 [pid 21080] <... futex resumed>) = 1 [pid 21078] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21083 [pid 21082] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21081] <... close resumed>) = 0 [pid 21080] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21078] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21081] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21078] <... futex resumed>) = 0 [pid 21081] <... futex resumed>) = 0 [pid 21078] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21081] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21081] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21080] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21081] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21080] write(5, NULL, 176 [pid 21082] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 21084 attached ./strace-static-x86_64: Process 21083 attached [pid 21082] setpgid(0, 0 [pid 21080] <... write resumed>) = -1 EFAULT (Bad address) [pid 21084] set_robust_list(0x7f61a3ef39e0, 24 [pid 21083] set_robust_list(0x555556ba76e0, 24 [pid 21082] <... setpgid resumed>) = 0 [pid 21081] <... clone resumed>, parent_tid=[21084], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21084 [pid 21080] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21084] <... set_robust_list resumed>) = 0 [pid 21083] <... set_robust_list resumed>) = 0 [pid 21082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21081] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21080] <... futex resumed>) = 1 [pid 21078] <... futex resumed>) = 0 [pid 21084] mkdir("./file0", 0777 [pid 21083] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21082] <... openat resumed>) = 3 [pid 21081] <... futex resumed>) = 0 [pid 21080] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21078] exit_group(0 [pid 21084] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21083] <... prctl resumed>) = 0 [pid 21082] write(3, "1000", 4 [pid 21081] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21080] <... futex resumed>) = ? [pid 21078] <... exit_group resumed>) = ? [pid 21084] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21083] setpgid(0, 0 [pid 21082] <... write resumed>) = 4 [pid 21080] +++ exited with 0 +++ [pid 21084] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21083] <... setpgid resumed>) = 0 [pid 21082] close(3 [pid 21084] <... futex resumed>) = 1 [pid 21083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21082] <... close resumed>) = 0 [pid 21078] +++ exited with 0 +++ [pid 21084] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21083] <... openat resumed>) = 3 [pid 21082] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21081] <... futex resumed>) = 0 [pid 21083] write(3, "1000", 4 [pid 21082] <... futex resumed>) = 0 [pid 21081] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21078, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21083] <... write resumed>) = 4 [pid 21082] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21081] <... futex resumed>) = 1 [pid 21084] <... futex resumed>) = 0 [pid 21083] close(3 [pid 21082] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21081] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21084] pipe2( [pid 21083] <... close resumed>) = 0 [pid 21082] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21084] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21083] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21082] <... mprotect resumed>) = 0 [pid 21084] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21083] <... futex resumed>) = 0 [pid 21082] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21084] <... futex resumed>) = 1 [pid 21083] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21081] <... futex resumed>) = 0 [pid 21084] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21083] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21082] <... clone resumed>, parent_tid=[21085], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21085 [pid 21081] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21083] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21082] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21081] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21084] dup(4 [pid 21083] <... mprotect resumed>) = 0 [pid 21082] <... futex resumed>) = 0 [pid 21081] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21084] <... dup resumed>) = 5 [pid 21083] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21082] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] <... openat resumed>) = 3 [pid 21084] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21084] <... futex resumed>) = 1 [pid 21083] <... clone resumed>, parent_tid=[21086], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21086 [pid 21081] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21084] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21083] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21081] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3./strace-static-x86_64: Process 21086 attached ./strace-static-x86_64: Process 21085 attached [pid 21084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21083] <... futex resumed>) = 0 [pid 21081] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 21086] set_robust_list(0x7f61a3ef39e0, 24 [pid 21085] set_robust_list(0x7f61a3ef39e0, 24 [pid 21084] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21083] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21081] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21086] <... set_robust_list resumed>) = 0 [pid 21085] <... set_robust_list resumed>) = 0 [pid 21085] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21087 [pid 21085] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21085] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21082] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21087 attached [pid 21085] pipe2( [pid 21082] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21087] set_robust_list(0x555556ba76e0, 24 [pid 21082] <... futex resumed>) = 0 [pid 21087] <... set_robust_list resumed>) = 0 [pid 21082] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21087] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21086] mkdir("./file0", 0777 [pid 21085] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21084] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21087] <... prctl resumed>) = 0 [pid 21086] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21085] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21084] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21087] setpgid(0, 0 [pid 21086] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21085] <... futex resumed>) = 1 [pid 21084] <... futex resumed>) = 1 [pid 21082] <... futex resumed>) = 0 [pid 21081] <... futex resumed>) = 0 [pid 21087] <... setpgid resumed>) = 0 [pid 21086] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21085] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21084] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21082] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21081] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21086] <... futex resumed>) = 1 [pid 21085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21084] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21083] <... futex resumed>) = 0 [pid 21082] <... futex resumed>) = 0 [pid 21081] <... futex resumed>) = 0 [pid 21087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21086] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21085] dup(4 [pid 21084] write(5, NULL, 176 [pid 21083] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21082] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21081] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21087] <... openat resumed>) = 3 [pid 21086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21085] <... dup resumed>) = 5 [pid 21084] <... write resumed>) = -1 EFAULT (Bad address) [pid 21083] <... futex resumed>) = 0 [pid 21086] pipe2( [pid 21085] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21087] write(3, "1000", 4 [pid 21084] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21083] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21087] <... write resumed>) = 4 [pid 21086] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21085] <... futex resumed>) = 1 [pid 21084] <... futex resumed>) = 1 [pid 21082] <... futex resumed>) = 0 [pid 21081] <... futex resumed>) = 0 [pid 21087] close(3 [pid 21086] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21085] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21084] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21082] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21081] exit_group(0 [pid 21087] <... close resumed>) = 0 [pid 21086] <... futex resumed>) = 1 [pid 21085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21084] <... futex resumed>) = ? [pid 21083] <... futex resumed>) = 0 [pid 21082] <... futex resumed>) = 0 [pid 21081] <... exit_group resumed>) = ? [pid 21087] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21086] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21085] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21084] +++ exited with 0 +++ [pid 21083] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21082] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21081] +++ exited with 0 +++ [pid 21087] <... futex resumed>) = 0 [pid 21086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21083] <... futex resumed>) = 0 [pid 21087] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21086] dup(4 [pid 21083] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21081, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21087] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21086] <... dup resumed>) = 5 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 21087] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21086] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21085] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] <... restart_syscall resumed>) = 0 [pid 21087] <... mprotect resumed>) = 0 [pid 21086] <... futex resumed>) = 1 [pid 21085] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21083] <... futex resumed>) = 0 [pid 21087] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21086] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21085] <... futex resumed>) = 1 [pid 21083] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21082] <... futex resumed>) = 0 [pid 21086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21085] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21083] <... futex resumed>) = 0 [pid 21082] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21088 attached [pid 21087] <... clone resumed>, parent_tid=[21088], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21088 [pid 21086] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21085] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21083] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21082] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21087] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21082] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 21088] set_robust_list(0x7f61a3ef39e0, 24 [pid 21086] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21085] write(5, NULL, 176 [pid 21087] <... futex resumed>) = 0 [pid 21086] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21085] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21088] <... set_robust_list resumed>) = 0 [pid 21087] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21086] <... futex resumed>) = 1 [pid 21085] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21083] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21088] mkdir("./file0", 0777 [pid 21086] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21085] <... futex resumed>) = 1 [pid 21083] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21082] <... futex resumed>) = 0 [pid 3601] close(3 [pid 21086] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21085] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21083] <... futex resumed>) = 0 [pid 21082] exit_group(0 [pid 3601] <... close resumed>) = 0 [pid 21088] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21086] write(5, NULL, 176 [pid 21085] <... futex resumed>) = ? [pid 21083] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21082] <... exit_group resumed>) = ? [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21086] <... write resumed>) = -1 EFAULT (Bad address) [pid 21085] +++ exited with 0 +++ [pid 21086] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21083] <... futex resumed>) = 0 [pid 21086] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21083] exit_group(0 [pid 21086] <... futex resumed>) = ? [pid 21083] <... exit_group resumed>) = ? [pid 21082] +++ exited with 0 +++ ./strace-static-x86_64: Process 21089 attached [pid 21088] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21086] +++ exited with 0 +++ [pid 21083] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21082, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21088] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21089 [pid 21088] <... futex resumed>) = 1 [pid 21087] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21083, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3604] <... restart_syscall resumed>) = 0 [pid 21089] set_robust_list(0x555556ba76e0, 24 [pid 21088] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21087] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 21089] <... set_robust_list resumed>) = 0 [pid 21088] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21087] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 21088] pipe2( [pid 21087] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21088] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] <... openat resumed>) = 3 [pid 21089] <... prctl resumed>) = 0 [pid 21088] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21089] setpgid(0, 0 [pid 21088] <... futex resumed>) = 1 [pid 21087] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21089] <... setpgid resumed>) = 0 [pid 21088] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21087] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] close(3 [pid 21089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21088] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21087] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] <... close resumed>) = 0 [pid 21088] dup(4 [pid 21087] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] close(3 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21089] <... openat resumed>) = 3 [pid 21088] <... dup resumed>) = 5 [pid 3607] <... close resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21090 ./strace-static-x86_64: Process 21090 attached [pid 21090] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21090] setpgid(0, 0) = 0 [pid 21090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21090] write(3, "1000", 4) = 4 [pid 21090] close(3) = 0 [pid 21089] write(3, "1000", 4 [pid 21088] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21090] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21089] <... write resumed>) = 4 [pid 21088] <... futex resumed>) = 1 [pid 21087] <... futex resumed>) = 0 [pid 21090] <... futex resumed>) = 0 [pid 21090] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21087] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21090] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21089] close(3 [pid 21088] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21087] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21091 [pid 21089] <... close resumed>) = 0 [pid 21090] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21087] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21090] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 21091 attached , parent_tid=[21092], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21092 [pid 21089] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21091] set_robust_list(0x555556ba76e0, 24 [pid 21090] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21091] <... set_robust_list resumed>) = 0 [pid 21090] <... futex resumed>) = 0 [pid 21089] <... futex resumed>) = 0 [pid 21091] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21090] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21089] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21091] <... prctl resumed>) = 0 [pid 21089] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21091] setpgid(0, 0 [pid 21089] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21091] <... setpgid resumed>) = 0 [pid 21089] <... mprotect resumed>) = 0 [pid 21091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21089] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21091] <... openat resumed>) = 3 [pid 21091] write(3, "1000", 4./strace-static-x86_64: Process 21092 attached [pid 21092] set_robust_list(0x7f61a3ef39e0, 24 [pid 21091] <... write resumed>) = 4 [pid 21092] <... set_robust_list resumed>) = 0 [pid 21091] close(3 [pid 21092] mkdir("./file0", 0777 [pid 21091] <... close resumed>) = 0 [pid 21092] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21091] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21092] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21091] <... futex resumed>) = 0 [pid 21092] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21091] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21092] <... futex resumed>) = 1 [pid 21091] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21090] <... futex resumed>) = 0 [pid 21092] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21091] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21090] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21092] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21091] <... mprotect resumed>) = 0 [pid 21090] <... futex resumed>) = 0 [pid 21092] pipe2( [pid 21091] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21090] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21092] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21092] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21091] <... clone resumed>, parent_tid=[21093], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21093 [pid 21092] <... futex resumed>) = 1 [pid 21091] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21090] <... futex resumed>) = 0 [pid 21092] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21091] <... futex resumed>) = 0 [pid 21090] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21092] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21091] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21090] <... futex resumed>) = 0 [pid 21092] dup(4 [pid 21090] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21092] <... dup resumed>) = 5 [pid 21092] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21090] <... futex resumed>) = 0 [pid 21089] <... clone resumed>, parent_tid=[21094], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21094 [pid 21092] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21090] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21092] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21090] <... futex resumed>) = 0 [pid 21092] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21090] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21089] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21089] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21093 attached [pid 21093] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21093] mkdir("./file0", 0777./strace-static-x86_64: Process 21094 attached ) = -1 EEXIST (File exists) [pid 21093] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21093] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21094] set_robust_list(0x7f61a3ef39e0, 24 [pid 21091] <... futex resumed>) = 0 [pid 21088] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21094] <... set_robust_list resumed>) = 0 [pid 21091] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21088] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21093] pipe2( [pid 21091] <... futex resumed>) = 0 [pid 21088] <... futex resumed>) = 1 [pid 21087] <... futex resumed>) = 0 [pid 21093] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21091] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21094] mkdir("./file0", 0777 [pid 21093] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21092] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21091] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21088] write(5, NULL, 176 [pid 21087] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21094] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21093] <... futex resumed>) = 0 [pid 21092] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21091] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21088] <... write resumed>) = -1 EFAULT (Bad address) [pid 21087] <... futex resumed>) = 0 [pid 21094] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21093] dup(4 [pid 21092] <... futex resumed>) = 1 [pid 21091] <... futex resumed>) = 0 [pid 21090] <... futex resumed>) = 0 [pid 21088] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21087] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21094] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21093] <... dup resumed>) = 5 [pid 21092] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21091] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21090] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21088] <... futex resumed>) = 0 [pid 21087] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21094] <... futex resumed>) = 1 [pid 21093] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21092] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21091] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21090] <... futex resumed>) = 0 [pid 21089] <... futex resumed>) = 0 [pid 21088] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21087] exit_group(0 [pid 21094] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21093] <... futex resumed>) = 0 [pid 21092] write(5, NULL, 176 [pid 21091] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21090] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21089] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21088] <... futex resumed>) = ? [pid 21087] <... exit_group resumed>) = ? [pid 21094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21093] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21092] <... write resumed>) = -1 EFAULT (Bad address) [pid 21091] <... futex resumed>) = 0 [pid 21089] <... futex resumed>) = 0 [pid 21088] +++ exited with 0 +++ [pid 21094] pipe2( [pid 21089] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21087] +++ exited with 0 +++ [pid 21094] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21092] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21091] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21094] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21092] <... futex resumed>) = 1 [pid 21090] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21087, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21094] <... futex resumed>) = 1 [pid 21093] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21092] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21090] exit_group(0 [pid 21089] <... futex resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 21094] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21093] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21092] <... futex resumed>) = ? [pid 21090] <... exit_group resumed>) = ? [pid 21089] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... restart_syscall resumed>) = 0 [pid 21094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21092] +++ exited with 0 +++ [pid 21091] <... futex resumed>) = 0 [pid 21089] <... futex resumed>) = 0 [pid 21094] dup(4 [pid 21089] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21094] <... dup resumed>) = 5 [pid 21094] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21090] +++ exited with 0 +++ [pid 21094] <... futex resumed>) = 1 [pid 21089] <... futex resumed>) = 0 [pid 21094] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21093] <... futex resumed>) = 1 [pid 21091] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21089] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21093] write(5, NULL, 176 [pid 21091] <... futex resumed>) = 0 [pid 21089] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21090, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21094] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21093] <... write resumed>) = -1 EFAULT (Bad address) [pid 21091] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21089] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... openat resumed>) = 3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21093] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21091] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... openat resumed>) = 3 [pid 21093] <... futex resumed>) = 0 [pid 21091] exit_group(0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21091] <... exit_group resumed>) = ? [pid 3606] close(3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21093] +++ exited with 0 +++ [pid 21091] +++ exited with 0 +++ [pid 3606] <... close resumed>) = 0 [pid 3604] close(3 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21095 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21096 ./strace-static-x86_64: Process 21095 attached [pid 21095] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21095] setpgid(0, 0) = 0 [pid 21095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21095] write(3, "1000", 4) = 4 [pid 21095] close(3) = 0 [pid 21095] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21095] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21095] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21095] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21097], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21097 [pid 21095] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21095] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21097 attached [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21091, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 21096 attached [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 21097] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21094] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] <... restart_syscall resumed>) = 0 [pid 21094] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21097] mkdir("./file0", 0777 [pid 21096] set_robust_list(0x555556ba76e0, 24 [pid 21094] <... futex resumed>) = 1 [pid 21089] <... futex resumed>) = 0 [pid 21097] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21096] <... set_robust_list resumed>) = 0 [pid 21094] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21089] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21097] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21096] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21094] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21089] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 21097] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21096] <... prctl resumed>) = 0 [pid 21094] write(5, NULL, 176 [pid 21089] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21097] <... futex resumed>) = 1 [pid 21096] setpgid(0, 0 [pid 21095] <... futex resumed>) = 0 [pid 21094] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21097] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21096] <... setpgid resumed>) = 0 [pid 21095] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21094] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 21097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21095] <... futex resumed>) = 0 [pid 21094] <... futex resumed>) = 1 [pid 21089] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 21097] pipe2( [pid 21096] <... openat resumed>) = 3 [pid 21095] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21094] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21089] exit_group(0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21097] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21096] write(3, "1000", 4 [pid 21094] <... futex resumed>) = ? [pid 21089] <... exit_group resumed>) = ? [pid 21097] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21094] +++ exited with 0 +++ [pid 21097] <... futex resumed>) = 1 [pid 21095] <... futex resumed>) = 0 [pid 21097] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21096] <... write resumed>) = 4 [pid 21095] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21089] +++ exited with 0 +++ [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21098 [pid 21097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21096] close(3 [pid 21095] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21089, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 21098 attached [pid 21097] dup(4 [pid 21096] <... close resumed>) = 0 [pid 21095] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21098] set_robust_list(0x555556ba76e0, 24 [pid 21097] <... dup resumed>) = 5 [pid 21096] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21098] <... set_robust_list resumed>) = 0 [pid 21097] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21096] <... futex resumed>) = 0 [pid 21098] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21097] <... futex resumed>) = 1 [pid 21095] <... futex resumed>) = 0 [pid 21098] <... prctl resumed>) = 0 [pid 21097] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21095] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21098] setpgid(0, 0 [pid 21097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21095] <... futex resumed>) = 0 [pid 21098] <... setpgid resumed>) = 0 [pid 21097] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21095] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21096] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21096] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] <... openat resumed>) = 3 [pid 21098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21096] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21096] <... mprotect resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21096] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] close(3) = 0 [pid 21096] <... clone resumed>, parent_tid=[21099], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21099 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21096] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21100 [pid 21096] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21100 attached [pid 21100] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21100] setpgid(0, 0) = 0 [pid 21100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21100] write(3, "1000", 4) = 4 [pid 21100] close(3) = 0 [pid 21100] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21100] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21100] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21100] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21098] <... openat resumed>) = 3 [pid 21098] write(3, "1000", 4 [pid 21100] <... clone resumed>, parent_tid=[21101], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21101 [pid 21098] <... write resumed>) = 4 [pid 21100] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21098] close(3) = 0 [pid 21098] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21100] <... futex resumed>) = 0 [pid 21098] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21100] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21098] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21098] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 21101 attached [pid 21098] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21101] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21098] <... clone resumed>, parent_tid=[21102], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21102 [pid 21098] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21098] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21099 attached ./strace-static-x86_64: Process 21102 attached [pid 21101] mkdir("./file0", 0777 [pid 21099] set_robust_list(0x7f61a3ef39e0, 24 [pid 21101] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21101] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21102] set_robust_list(0x7f61a3ef39e0, 24 [pid 21099] <... set_robust_list resumed>) = 0 [pid 21101] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21102] <... set_robust_list resumed>) = 0 [pid 21099] mkdir("./file0", 0777 [pid 21102] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21099] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21099] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21099] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21096] <... futex resumed>) = 0 [pid 21102] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21096] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21102] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21096] <... futex resumed>) = 0 [pid 21102] <... futex resumed>) = 1 [pid 21096] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21102] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21101] <... futex resumed>) = 1 [pid 21100] <... futex resumed>) = 0 [pid 21097] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21098] <... futex resumed>) = 0 [pid 21099] pipe2( [pid 21101] pipe2( [pid 21100] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21099] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21098] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21097] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21102] <... futex resumed>) = 0 [pid 21101] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21100] <... futex resumed>) = 0 [pid 21099] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21098] <... futex resumed>) = 1 [pid 21097] <... futex resumed>) = 1 [pid 21095] <... futex resumed>) = 0 [pid 21102] pipe2( [pid 21101] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21100] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21099] <... futex resumed>) = 1 [pid 21098] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21097] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21096] <... futex resumed>) = 0 [pid 21095] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21102] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21101] <... futex resumed>) = 0 [pid 21100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21099] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21097] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21096] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21095] <... futex resumed>) = 0 [pid 21102] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21101] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21100] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21097] write(5, NULL, 176 [pid 21096] <... futex resumed>) = 0 [pid 21095] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21102] <... futex resumed>) = 1 [pid 21101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21100] <... futex resumed>) = 0 [pid 21099] dup(4 [pid 21098] <... futex resumed>) = 0 [pid 21097] <... write resumed>) = -1 EFAULT (Bad address) [pid 21096] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21102] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21101] dup(4 [pid 21100] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21099] <... dup resumed>) = 5 [pid 21098] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21097] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21101] <... dup resumed>) = 5 [pid 21099] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21098] <... futex resumed>) = 0 [pid 21097] <... futex resumed>) = 1 [pid 21095] <... futex resumed>) = 0 [pid 21102] dup(4 [pid 21101] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21099] <... futex resumed>) = 1 [pid 21098] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21097] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21096] <... futex resumed>) = 0 [pid 21095] exit_group(0 [pid 21102] <... dup resumed>) = 5 [pid 21101] <... futex resumed>) = 1 [pid 21100] <... futex resumed>) = 0 [pid 21099] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21097] <... futex resumed>) = ? [pid 21096] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21095] <... exit_group resumed>) = ? [pid 21102] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21101] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21100] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21097] +++ exited with 0 +++ [pid 21096] <... futex resumed>) = 0 [pid 21102] <... futex resumed>) = 1 [pid 21101] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21100] <... futex resumed>) = 0 [pid 21102] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21101] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21100] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21095] +++ exited with 0 +++ [pid 21099] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21098] <... futex resumed>) = 0 [pid 21096] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21098] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21095, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21098] <... futex resumed>) = 1 [pid 21102] <... futex resumed>) = 0 [pid 21098] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21102] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21101] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21099] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] <... openat resumed>) = 3 [pid 21101] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21099] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21101] <... futex resumed>) = 1 [pid 21099] <... futex resumed>) = 1 [pid 21096] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21101] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21100] <... futex resumed>) = 0 [pid 21099] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21096] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 21100] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21099] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21096] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 21101] <... futex resumed>) = 0 [pid 21100] <... futex resumed>) = 1 [pid 21099] write(5, NULL, 176 [pid 21096] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21101] write(5, NULL, 176 [pid 21099] <... write resumed>) = -1 EFAULT (Bad address) [pid 21101] <... write resumed>) = -1 EFAULT (Bad address) [pid 21100] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21099] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21103 [pid 21101] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21100] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21099] <... futex resumed>) = 1 [pid 21096] <... futex resumed>) = 0 [pid 21101] <... futex resumed>) = 0 [pid 21100] exit_group(0 [pid 21099] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21096] exit_group(0 [pid 21100] <... exit_group resumed>) = ? [pid 21099] <... futex resumed>) = ? [pid 21096] <... exit_group resumed>) = ? [pid 21101] +++ exited with 0 +++ [pid 21100] +++ exited with 0 +++ [pid 21099] +++ exited with 0 +++ [pid 21096] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21096, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21100, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] <... restart_syscall resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 21103 attached [pid 3604] close(3 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21103] set_robust_list(0x555556ba76e0, 24 [pid 3604] <... close resumed>) = 0 [pid 21103] <... set_robust_list resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21104 [pid 21103] setpgid(0, 0) = 0 [pid 21103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21103] write(3, "1000", 4) = 4 [pid 21103] close(3) = 0 [pid 21103] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21103] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21103] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21103] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21105], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21105 [pid 21103] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21103] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21104 attached [pid 21104] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21104] setpgid(0, 0) = 0 [pid 21104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21104] write(3, "1000", 4 [pid 3601] <... openat resumed>) = 3 [pid 21104] <... write resumed>) = 4 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21104] close(3) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21104] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 21104] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 21104] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21104] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21104] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21104] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21106 [pid 21104] <... clone resumed>, parent_tid=[21107], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21107 [pid 21104] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21104] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21106 attached [pid 21106] set_robust_list(0x555556ba76e0, 24) = 0 ./strace-static-x86_64: Process 21105 attached [pid 21106] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 21107 attached ) = 0 [pid 21105] set_robust_list(0x7f61a3ef39e0, 24 [pid 21107] set_robust_list(0x7f61a3ef39e0, 24 [pid 21106] setpgid(0, 0 [pid 21105] <... set_robust_list resumed>) = 0 [pid 21107] <... set_robust_list resumed>) = 0 [pid 21106] <... setpgid resumed>) = 0 [pid 21105] mkdir("./file0", 0777 [pid 21107] mkdir("./file0", 0777 [pid 21106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21107] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21106] <... openat resumed>) = 3 [pid 21105] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21107] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21106] write(3, "1000", 4 [pid 21105] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21107] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21106] <... write resumed>) = 4 [pid 21105] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21107] <... futex resumed>) = 1 [pid 21106] close(3 [pid 21105] <... futex resumed>) = 1 [pid 21104] <... futex resumed>) = 0 [pid 21103] <... futex resumed>) = 0 [pid 21107] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21106] <... close resumed>) = 0 [pid 21104] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21103] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21107] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21106] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21104] <... futex resumed>) = 0 [pid 21103] <... futex resumed>) = 0 [pid 21102] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21107] pipe2( [pid 21106] <... futex resumed>) = 0 [pid 21105] pipe2( [pid 21104] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21103] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21102] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21107] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21106] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21105] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21102] <... futex resumed>) = 1 [pid 21098] <... futex resumed>) = 0 [pid 21107] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21106] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21105] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21102] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21098] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21107] <... futex resumed>) = 1 [pid 21106] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21105] <... futex resumed>) = 1 [pid 21104] <... futex resumed>) = 0 [pid 21103] <... futex resumed>) = 0 [pid 21102] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21098] <... futex resumed>) = 0 [pid 21107] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21106] <... mprotect resumed>) = 0 [pid 21105] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21104] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21103] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21102] write(5, NULL, 176 [pid 21098] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21107] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21106] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21104] <... futex resumed>) = 0 [pid 21103] <... futex resumed>) = 0 [pid 21107] dup(4 [pid 21104] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21103] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21107] <... dup resumed>) = 5 [pid 21106] <... clone resumed>, parent_tid=[21108], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21108 [pid 21107] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21106] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21107] <... futex resumed>) = 1 [pid 21106] <... futex resumed>) = 0 [pid 21104] <... futex resumed>) = 0 [pid 21107] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21106] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21104] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21107] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21104] <... futex resumed>) = 0 [pid 21107] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21104] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21108 attached [pid 21105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21102] <... write resumed>) = -1 EFAULT (Bad address) [pid 21105] dup(4 [pid 21102] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21105] <... dup resumed>) = 5 [pid 21102] <... futex resumed>) = 1 [pid 21098] <... futex resumed>) = 0 [pid 21105] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21102] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21098] exit_group(0 [pid 21105] <... futex resumed>) = 1 [pid 21103] <... futex resumed>) = 0 [pid 21102] <... futex resumed>) = ? [pid 21098] <... exit_group resumed>) = ? [pid 21108] set_robust_list(0x7f61a3ef39e0, 24 [pid 21105] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21103] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21102] +++ exited with 0 +++ [pid 21108] <... set_robust_list resumed>) = 0 [pid 21105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21103] <... futex resumed>) = 0 [pid 21098] +++ exited with 0 +++ [pid 21107] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21108] mkdir("./file0", 0777 [pid 21107] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21105] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21103] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21098, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21107] <... futex resumed>) = 1 [pid 21104] <... futex resumed>) = 0 [pid 21107] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21104] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21107] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21104] <... futex resumed>) = 0 [pid 21107] write(5, NULL, 176 [pid 21104] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21107] <... write resumed>) = -1 EFAULT (Bad address) [pid 21107] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21104] <... futex resumed>) = 0 [pid 21107] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21104] exit_group(0 [pid 21107] <... futex resumed>) = ? [pid 21104] <... exit_group resumed>) = ? [pid 21107] +++ exited with 0 +++ [pid 21104] +++ exited with 0 +++ [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21104, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21108] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3607] <... openat resumed>) = 3 [pid 3604] <... restart_syscall resumed>) = 0 [pid 21108] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21108] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21108] <... futex resumed>) = 1 [pid 21106] <... futex resumed>) = 0 [pid 3607] close(3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21108] pipe2( [pid 21106] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 21108] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21106] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21108] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21106] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21108] <... futex resumed>) = 0 [pid 21106] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] close(3 [pid 21108] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21106] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 21108] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21106] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21108] dup(4 [pid 21106] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21108] <... dup resumed>) = 5 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21109 [pid 21108] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21106] <... futex resumed>) = 0 [pid 21108] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21106] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21108] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21106] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 21108] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21106] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21105] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21105] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21109 attached ) = 1 [pid 21103] <... futex resumed>) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21110 [pid 21105] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21103] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21105] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21103] <... futex resumed>) = 0 [pid 21105] write(5, NULL, 176 [pid 21103] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21110 attached [pid 21105] <... write resumed>) = -1 EFAULT (Bad address) [pid 21109] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21110] set_robust_list(0x555556ba76e0, 24 [pid 21109] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21105] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21109] <... prctl resumed>) = 0 [pid 21105] <... futex resumed>) = 1 [pid 21103] <... futex resumed>) = 0 [pid 21110] <... set_robust_list resumed>) = 0 [pid 21109] setpgid(0, 0 [pid 21105] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21103] exit_group(0 [pid 21110] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21109] <... setpgid resumed>) = 0 [pid 21103] <... exit_group resumed>) = ? [pid 21105] <... futex resumed>) = ? [pid 21109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21109] write(3, "1000", 4) = 4 [pid 21109] close(3) = 0 [pid 21105] +++ exited with 0 +++ [pid 21103] +++ exited with 0 +++ [pid 21110] <... prctl resumed>) = 0 [pid 21109] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21103, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21109] <... futex resumed>) = 0 [pid 21109] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21110] setpgid(0, 0 [pid 21109] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21110] <... setpgid resumed>) = 0 [pid 21109] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] <... openat resumed>) = 3 [pid 21110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21109] <... mprotect resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21110] <... openat resumed>) = 3 [pid 21109] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21110] write(3, "1000", 4 [pid 3606] close(3 [pid 21110] <... write resumed>) = 4 [pid 21109] <... clone resumed>, parent_tid=[21111], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21111 [pid 21108] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] <... close resumed>) = 0 [pid 21110] close(3 [pid 21109] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21108] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21110] <... close resumed>) = 0 [pid 21109] <... futex resumed>) = 0 [pid 21108] <... futex resumed>) = 1 [pid 21106] <... futex resumed>) = 0 [pid 21110] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21109] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21108] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21106] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21112 [pid 21110] <... futex resumed>) = 0 [pid 21108] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21106] <... futex resumed>) = 0 [pid 21110] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21108] write(5, NULL, 176 [pid 21106] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21110] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21108] <... write resumed>) = -1 EFAULT (Bad address) [pid 21110] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21108] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21111 attached [pid 21110] <... mprotect resumed>) = 0 [pid 21108] <... futex resumed>) = 1 [pid 21106] <... futex resumed>) = 0 [pid 21111] set_robust_list(0x7f61a3ef39e0, 24 [pid 21110] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21108] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21106] exit_group(0 [pid 21111] <... set_robust_list resumed>) = 0 [pid 21108] <... futex resumed>) = ? [pid 21106] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 21112 attached [pid 21111] mkdir("./file0", 0777 [pid 21110] <... clone resumed>, parent_tid=[21113], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21113 [pid 21108] +++ exited with 0 +++ [pid 21106] +++ exited with 0 +++ [pid 21111] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21110] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21106, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21112] set_robust_list(0x555556ba76e0, 24 [pid 21111] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21110] <... futex resumed>) = 0 [pid 21112] <... set_robust_list resumed>) = 0 [pid 21111] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21110] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21111] <... futex resumed>) = 1 [pid 21109] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21113 attached [pid 21112] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21111] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21109] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21113] set_robust_list(0x7f61a3ef39e0, 24 [pid 21111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21109] <... futex resumed>) = 0 [pid 21113] <... set_robust_list resumed>) = 0 [pid 21112] <... prctl resumed>) = 0 [pid 21111] pipe2( [pid 21109] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21113] mkdir("./file0", 0777 [pid 21112] setpgid(0, 0 [pid 21111] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21113] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21112] <... setpgid resumed>) = 0 [pid 21111] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21113] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21111] <... futex resumed>) = 1 [pid 21109] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21113] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21111] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21109] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21113] <... futex resumed>) = 1 [pid 21112] <... openat resumed>) = 3 [pid 21111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21110] <... futex resumed>) = 0 [pid 21109] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 21113] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21112] write(3, "1000", 4 [pid 21111] dup(4 [pid 21110] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21109] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21112] <... write resumed>) = 4 [pid 21111] <... dup resumed>) = 5 [pid 21110] <... futex resumed>) = 0 [pid 21113] pipe2( [pid 21112] close(3 [pid 21111] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21110] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21113] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21112] <... close resumed>) = 0 [pid 21111] <... futex resumed>) = 1 [pid 21109] <... futex resumed>) = 0 [pid 3601] close(3 [pid 21113] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21112] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21111] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21109] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 21113] <... futex resumed>) = 1 [pid 21112] <... futex resumed>) = 0 [pid 21111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21110] <... futex resumed>) = 0 [pid 21109] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21113] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21112] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21111] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21110] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21109] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21112] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21113] dup(4 [pid 21110] <... futex resumed>) = 0 [pid 21113] <... dup resumed>) = 5 [pid 21113] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21112] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21110] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21114 [pid 21113] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21112] <... mprotect resumed>) = 0 [pid 21110] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21110] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21112] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21113] <... futex resumed>) = 0 [pid 21110] <... futex resumed>) = 1 [pid 21113] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21110] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21114 attached [pid 21112] <... clone resumed>, parent_tid=[21115], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21115 [pid 21111] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21112] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21111] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21112] <... futex resumed>) = 0 [pid 21111] <... futex resumed>) = 1 [pid 21109] <... futex resumed>) = 0 [pid 21112] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21111] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21109] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21115 attached [pid 21114] set_robust_list(0x555556ba76e0, 24 [pid 21111] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21109] <... futex resumed>) = 0 [pid 21115] set_robust_list(0x7f61a3ef39e0, 24 [pid 21114] <... set_robust_list resumed>) = 0 [pid 21111] write(5, NULL, 176 [pid 21109] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21115] <... set_robust_list resumed>) = 0 [pid 21114] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21111] <... write resumed>) = -1 EFAULT (Bad address) [pid 21114] <... prctl resumed>) = 0 [pid 21111] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21115] mkdir("./file0", 0777 [pid 21114] setpgid(0, 0 [pid 21111] <... futex resumed>) = 1 [pid 21109] <... futex resumed>) = 0 [pid 21115] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21114] <... setpgid resumed>) = 0 [pid 21111] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21109] exit_group(0 [pid 21115] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21111] <... futex resumed>) = ? [pid 21109] <... exit_group resumed>) = ? [pid 21115] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21114] <... openat resumed>) = 3 [pid 21111] +++ exited with 0 +++ [pid 21115] <... futex resumed>) = 1 [pid 21114] write(3, "1000", 4 [pid 21112] <... futex resumed>) = 0 [pid 21109] +++ exited with 0 +++ [pid 21115] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21114] <... write resumed>) = 4 [pid 21112] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21109, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21114] close(3 [pid 21112] <... futex resumed>) = 0 [pid 21115] pipe2( [pid 21114] <... close resumed>) = 0 [pid 21112] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21114] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21115] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21114] <... futex resumed>) = 0 [pid 21113] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21115] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21114] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21113] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 21115] <... futex resumed>) = 1 [pid 21114] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21113] <... futex resumed>) = 1 [pid 21112] <... futex resumed>) = 0 [pid 21110] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21115] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21114] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21113] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21112] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21110] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21114] <... mprotect resumed>) = 0 [pid 21113] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21112] <... futex resumed>) = 0 [pid 21110] <... futex resumed>) = 0 [pid 3604] close(3 [pid 21115] dup(4 [pid 21114] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21113] write(5, NULL, 176 [pid 21112] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21110] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... close resumed>) = 0 [pid 21115] <... dup resumed>) = 5 [pid 21113] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21116 attached [pid 21115] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21114] <... clone resumed>, parent_tid=[21116], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21116 [pid 21113] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21117 attached [pid 21116] set_robust_list(0x7f61a3ef39e0, 24 [pid 21115] <... futex resumed>) = 1 [pid 21114] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21113] <... futex resumed>) = 1 [pid 21112] <... futex resumed>) = 0 [pid 21110] <... futex resumed>) = 0 [pid 21117] set_robust_list(0x555556ba76e0, 24 [pid 21116] <... set_robust_list resumed>) = 0 [pid 21115] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21114] <... futex resumed>) = 0 [pid 21113] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21112] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21110] exit_group(0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21117 [pid 21117] <... set_robust_list resumed>) = 0 [pid 21115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21114] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21113] <... futex resumed>) = ? [pid 21112] <... futex resumed>) = 0 [pid 21110] <... exit_group resumed>) = ? [pid 21117] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21116] mkdir("./file0", 0777 [pid 21115] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21113] +++ exited with 0 +++ [pid 21112] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21117] <... prctl resumed>) = 0 [pid 21116] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21110] +++ exited with 0 +++ [pid 21116] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21117] setpgid(0, 0 [pid 21116] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21110, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21116] <... futex resumed>) = 1 [pid 21114] <... futex resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 21116] pipe2( [pid 21114] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 21116] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21114] <... futex resumed>) = 0 [pid 21117] <... setpgid resumed>) = 0 [pid 21116] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21114] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21116] <... futex resumed>) = 0 [pid 21114] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21116] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21114] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 21115] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21116] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21114] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21117] <... openat resumed>) = 3 [pid 21116] dup(4 [pid 21115] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21114] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21117] write(3, "1000", 4 [pid 21116] <... dup resumed>) = 5 [pid 21115] <... futex resumed>) = 1 [pid 21112] <... futex resumed>) = 0 [pid 3607] close(3 [pid 21117] <... write resumed>) = 4 [pid 21116] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21115] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21112] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 21117] close(3 [pid 21116] <... futex resumed>) = 1 [pid 21115] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21114] <... futex resumed>) = 0 [pid 21112] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21117] <... close resumed>) = 0 [pid 21116] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21115] write(5, NULL, 176 [pid 21114] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21112] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21117] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21116] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21115] <... write resumed>) = -1 EFAULT (Bad address) [pid 21114] <... futex resumed>) = 0 [pid 21117] <... futex resumed>) = 0 [pid 21116] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21115] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21114] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21118 [pid 21117] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21115] <... futex resumed>) = 1 [pid 21112] <... futex resumed>) = 0 [pid 21117] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21115] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21112] exit_group(0 [pid 21117] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21115] <... futex resumed>) = ? [pid 21112] <... exit_group resumed>) = ? [pid 21117] <... mprotect resumed>) = 0 [pid 21115] +++ exited with 0 +++ [pid 21112] +++ exited with 0 +++ [pid 21117] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21112, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21117] <... clone resumed>, parent_tid=[21119], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21119 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 21117] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... restart_syscall resumed>) = 0 [pid 21117] <... futex resumed>) = 0 [pid 21117] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 21120 ./strace-static-x86_64: Process 21119 attached [pid 21119] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21119] mkdir("./file0", 0777) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 21120 attached [pid 21119] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21119] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21120] set_robust_list(0x555556ba76e0, 24 [pid 21119] <... futex resumed>) = 1 [pid 21117] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21118 attached [pid 21120] <... set_robust_list resumed>) = 0 [pid 21119] pipe2( [pid 21117] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21119] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21117] <... futex resumed>) = 0 [pid 21120] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21119] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21118] set_robust_list(0x555556ba76e0, 24 [pid 21117] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21120] <... prctl resumed>) = 0 [pid 21119] <... futex resumed>) = 0 [pid 21118] <... set_robust_list resumed>) = 0 [pid 21117] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21120] setpgid(0, 0 [pid 21119] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21118] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21117] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21120] <... setpgid resumed>) = 0 [pid 21119] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21118] <... prctl resumed>) = 0 [pid 21117] <... futex resumed>) = 0 [pid 21116] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21119] dup(4 [pid 21118] setpgid(0, 0 [pid 21117] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21116] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21120] <... openat resumed>) = 3 [pid 21119] <... dup resumed>) = 5 [pid 21118] <... setpgid resumed>) = 0 [pid 21116] <... futex resumed>) = 1 [pid 21114] <... futex resumed>) = 0 [pid 21120] write(3, "1000", 4 [pid 21119] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21116] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21114] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21120] <... write resumed>) = 4 [pid 21119] <... futex resumed>) = 1 [pid 21118] <... openat resumed>) = 3 [pid 21117] <... futex resumed>) = 0 [pid 21116] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21114] <... futex resumed>) = 0 [pid 21119] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21117] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21119] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21117] <... futex resumed>) = 0 [pid 21119] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21117] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21120] close(3 [pid 21118] write(3, "1000", 4 [pid 21116] write(5, NULL, 176 [pid 21114] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21120] <... close resumed>) = 0 [pid 21118] <... write resumed>) = 4 [pid 21116] <... write resumed>) = -1 EFAULT (Bad address) [pid 21120] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21118] close(3 [pid 21116] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21120] <... futex resumed>) = 0 [pid 21118] <... close resumed>) = 0 [pid 21116] <... futex resumed>) = 1 [pid 21114] <... futex resumed>) = 0 [pid 21120] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21118] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21116] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21114] exit_group(0 [pid 21120] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21116] <... futex resumed>) = ? [pid 21114] <... exit_group resumed>) = ? [pid 21118] <... futex resumed>) = 0 [pid 21116] +++ exited with 0 +++ [pid 21114] +++ exited with 0 +++ [pid 21120] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21118] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21114, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21120] <... mprotect resumed>) = 0 [pid 21119] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21118] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21120] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21119] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21118] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21119] <... futex resumed>) = 1 [pid 21118] <... mprotect resumed>) = 0 [pid 21117] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 21121 attached [pid 21120] <... clone resumed>, parent_tid=[21121], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21121 [pid 21119] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21118] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21117] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 21120] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21119] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21117] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21120] <... futex resumed>) = 0 [pid 21119] write(5, NULL, 176 [pid 21118] <... clone resumed>, parent_tid=[21122], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21122 [pid 21117] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21120] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21119] <... write resumed>) = -1 EFAULT (Bad address) [pid 21118] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] close(3 [pid 21119] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21118] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 21119] <... futex resumed>) = 1 [pid 21118] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21117] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21122 attached [pid 21121] set_robust_list(0x7f61a3ef39e0, 24 [pid 21119] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21117] exit_group(0 [pid 21122] set_robust_list(0x7f61a3ef39e0, 24 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21123 [pid 21121] <... set_robust_list resumed>) = 0 [pid 21119] <... futex resumed>) = ? [pid 21117] <... exit_group resumed>) = ? [pid 21122] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 21123 attached [pid 21119] +++ exited with 0 +++ [pid 21121] mkdir("./file0", 0777 [pid 21117] +++ exited with 0 +++ [pid 21122] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21122] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21121] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21122] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21121] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21118] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21117, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21122] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21118] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21121] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21118] <... futex resumed>) = 0 [pid 21122] pipe2( [pid 21121] <... futex resumed>) = 1 [pid 21120] <... futex resumed>) = 0 [pid 21118] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 21122] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21121] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21120] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21122] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21120] <... futex resumed>) = 0 [pid 21122] <... futex resumed>) = 1 [pid 21121] pipe2( [pid 21120] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21118] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21122] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21121] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21118] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 21122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21121] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21118] <... futex resumed>) = 0 [pid 21122] dup(4 [pid 21121] <... futex resumed>) = 1 [pid 21120] <... futex resumed>) = 0 [pid 21118] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... close resumed>) = 0 [pid 21122] <... dup resumed>) = 5 [pid 21121] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21120] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21122] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21120] <... futex resumed>) = 0 [pid 21122] <... futex resumed>) = 1 [pid 21118] <... futex resumed>) = 0 [pid 21122] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21121] dup(4 [pid 21120] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21118] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21124 attached [pid 21123] set_robust_list(0x555556ba76e0, 24 [pid 21122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21121] <... dup resumed>) = 5 [pid 21118] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21124 [pid 21123] <... set_robust_list resumed>) = 0 [pid 21122] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21121] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21118] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21124] set_robust_list(0x555556ba76e0, 24 [pid 21123] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21121] <... futex resumed>) = 1 [pid 21120] <... futex resumed>) = 0 [pid 21124] <... set_robust_list resumed>) = 0 [pid 21123] <... prctl resumed>) = 0 [pid 21121] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21120] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21124] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21123] setpgid(0, 0 [pid 21121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21120] <... futex resumed>) = 0 [pid 21124] <... prctl resumed>) = 0 [pid 21123] <... setpgid resumed>) = 0 [pid 21121] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21120] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21124] setpgid(0, 0 [pid 21123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21124] <... setpgid resumed>) = 0 [pid 21123] <... openat resumed>) = 3 [pid 21124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21123] write(3, "1000", 4 [pid 21124] <... openat resumed>) = 3 [pid 21123] <... write resumed>) = 4 [pid 21124] write(3, "1000", 4 [pid 21123] close(3 [pid 21124] <... write resumed>) = 4 [pid 21123] <... close resumed>) = 0 [pid 21124] close(3 [pid 21123] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21124] <... close resumed>) = 0 [pid 21123] <... futex resumed>) = 0 [pid 21124] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21123] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21122] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21121] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21124] <... futex resumed>) = 0 [pid 21123] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21122] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21121] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21124] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21123] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21122] <... futex resumed>) = 1 [pid 21121] <... futex resumed>) = 1 [pid 21120] <... futex resumed>) = 0 [pid 21118] <... futex resumed>) = 0 [pid 21124] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21123] <... mprotect resumed>) = 0 [pid 21122] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21121] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21120] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21118] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21124] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21123] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21122] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21121] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21120] <... futex resumed>) = 0 [pid 21118] <... futex resumed>) = 0 [pid 21124] <... mprotect resumed>) = 0 [pid 21122] write(5, NULL, 176 [pid 21121] write(5, NULL, 176 [pid 21120] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21118] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21125 attached [pid 21124] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21123] <... clone resumed>, parent_tid=[21125], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21125 [pid 21122] <... write resumed>) = -1 EFAULT (Bad address) [pid 21121] <... write resumed>) = -1 EFAULT (Bad address) [pid 21123] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21122] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21121] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21124] <... clone resumed>, parent_tid=[21126], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21126 [pid 21123] <... futex resumed>) = 0 [pid 21122] <... futex resumed>) = 1 [pid 21121] <... futex resumed>) = 1 [pid 21120] <... futex resumed>) = 0 [pid 21118] <... futex resumed>) = 0 [pid 21124] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21123] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21122] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21121] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21120] exit_group(0 [pid 21118] exit_group(0 [pid 21124] <... futex resumed>) = 0 [pid 21122] <... futex resumed>) = ? [pid 21121] <... futex resumed>) = ? [pid 21120] <... exit_group resumed>) = ? [pid 21118] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 21126 attached [pid 21124] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21122] +++ exited with 0 +++ [pid 21121] +++ exited with 0 +++ [pid 21120] +++ exited with 0 +++ [pid 21118] +++ exited with 0 +++ [pid 21126] set_robust_list(0x7f61a3ef39e0, 24 [pid 21125] set_robust_list(0x7f61a3ef39e0, 24 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21118, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21126] <... set_robust_list resumed>) = 0 [pid 21125] <... set_robust_list resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21120, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21126] mkdir("./file0", 0777 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 21126] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21125] mkdir("./file0", 0777 [pid 3606] <... restart_syscall resumed>) = 0 [pid 21126] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21125] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21126] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21125] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21124] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21126] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21125] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21124] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] <... openat resumed>) = 3 [pid 21126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21125] <... futex resumed>) = 1 [pid 21124] <... futex resumed>) = 0 [pid 21123] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21126] pipe2( [pid 21125] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21124] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21123] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21126] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21123] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 21126] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21125] pipe2( [pid 21123] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] close(3 [pid 3606] <... close resumed>) = 0 [pid 21126] <... futex resumed>) = 1 [pid 21125] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21124] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21126] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21125] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21124] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21125] <... futex resumed>) = 1 [pid 21124] <... futex resumed>) = 0 [pid 21123] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21127 [pid 21126] dup(4 [pid 21125] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21124] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21123] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21128 ./strace-static-x86_64: Process 21128 attached ./strace-static-x86_64: Process 21127 attached [pid 21126] <... dup resumed>) = 5 [pid 21125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21123] <... futex resumed>) = 0 [pid 21127] set_robust_list(0x555556ba76e0, 24 [pid 21126] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21125] dup(4 [pid 21123] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21128] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21127] <... set_robust_list resumed>) = 0 [pid 21126] <... futex resumed>) = 1 [pid 21125] <... dup resumed>) = 5 [pid 21124] <... futex resumed>) = 0 [pid 21128] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21127] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21126] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21125] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21124] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21128] <... prctl resumed>) = 0 [pid 21127] <... prctl resumed>) = 0 [pid 21126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21125] <... futex resumed>) = 1 [pid 21124] <... futex resumed>) = 0 [pid 21123] <... futex resumed>) = 0 [pid 21128] setpgid(0, 0 [pid 21127] setpgid(0, 0 [pid 21126] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21125] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21124] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21123] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21128] <... setpgid resumed>) = 0 [pid 21127] <... setpgid resumed>) = 0 [pid 21125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21123] <... futex resumed>) = 0 [pid 21128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21125] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21123] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21128] <... openat resumed>) = 3 [pid 21127] <... openat resumed>) = 3 [pid 21128] write(3, "1000", 4 [pid 21127] write(3, "1000", 4 [pid 21128] <... write resumed>) = 4 [pid 21127] <... write resumed>) = 4 [pid 21128] close(3 [pid 21127] close(3 [pid 21128] <... close resumed>) = 0 [pid 21127] <... close resumed>) = 0 [pid 21128] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21127] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21128] <... futex resumed>) = 0 [pid 21127] <... futex resumed>) = 0 [pid 21128] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21127] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21128] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21127] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21128] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21127] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21128] <... mprotect resumed>) = 0 [pid 21127] <... mprotect resumed>) = 0 [pid 21128] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21127] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21126] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21128] <... clone resumed>, parent_tid=[21129], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21129 [pid 21127] <... clone resumed>, parent_tid=[21130], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21130 [pid 21128] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21127] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21126] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21125] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21128] <... futex resumed>) = 0 [pid 21127] <... futex resumed>) = 0 [pid 21125] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21128] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21127] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21126] <... futex resumed>) = 1 [pid 21124] <... futex resumed>) = 0 [pid 21126] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21125] <... futex resumed>) = 1 [pid 21124] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21123] <... futex resumed>) = 0 [pid 21126] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21125] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21124] <... futex resumed>) = 0 [pid 21123] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21126] write(5, NULL, 176 [pid 21125] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21124] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21123] <... futex resumed>) = 0 [pid 21126] <... write resumed>) = -1 EFAULT (Bad address) [pid 21125] write(5, NULL, 176 [pid 21123] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21129 attached ./strace-static-x86_64: Process 21130 attached [pid 21126] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21125] <... write resumed>) = -1 EFAULT (Bad address) [pid 21129] set_robust_list(0x7f61a3ef39e0, 24 [pid 21126] <... futex resumed>) = 1 [pid 21125] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21124] <... futex resumed>) = 0 [pid 21130] set_robust_list(0x7f61a3ef39e0, 24 [pid 21129] <... set_robust_list resumed>) = 0 [pid 21126] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21125] <... futex resumed>) = 1 [pid 21124] exit_group(0 [pid 21123] <... futex resumed>) = 0 [pid 21130] <... set_robust_list resumed>) = 0 [pid 21129] mkdir("./file0", 0777 [pid 21126] <... futex resumed>) = ? [pid 21125] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21124] <... exit_group resumed>) = ? [pid 21123] exit_group(0 [pid 21130] mkdir("./file0", 0777 [pid 21129] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21126] +++ exited with 0 +++ [pid 21123] <... exit_group resumed>) = ? [pid 21129] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21124] +++ exited with 0 +++ [pid 21130] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21129] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21125] <... futex resumed>) = ? [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21124, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21129] <... futex resumed>) = 1 [pid 21128] <... futex resumed>) = 0 [pid 21129] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21128] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21129] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21128] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21130] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21129] pipe2( [pid 21128] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21125] +++ exited with 0 +++ [pid 21123] +++ exited with 0 +++ [pid 3604] <... openat resumed>) = 3 [pid 21129] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21123, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21130] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21129] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21130] <... futex resumed>) = 1 [pid 21127] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 21130] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21129] <... futex resumed>) = 1 [pid 21128] <... futex resumed>) = 0 [pid 21127] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 3601] <... restart_syscall resumed>) = 0 [pid 21130] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21129] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21128] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21127] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 21130] pipe2( [pid 21129] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21128] <... futex resumed>) = 0 [pid 21127] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21131 attached [pid 21130] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21129] dup(4 [pid 21128] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21130] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21129] <... dup resumed>) = 5 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21131 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21130] <... futex resumed>) = 1 [pid 21129] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21127] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 21130] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21129] <... futex resumed>) = 1 [pid 21128] <... futex resumed>) = 0 [pid 21127] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21130] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21129] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21128] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21127] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21130] dup(4 [pid 21129] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21128] <... futex resumed>) = 0 [pid 21127] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] close(3 [pid 21130] <... dup resumed>) = 5 [pid 21129] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21128] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... close resumed>) = 0 [pid 21131] set_robust_list(0x555556ba76e0, 24 [pid 21130] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21131] <... set_robust_list resumed>) = 0 [pid 21130] <... futex resumed>) = 1 [pid 21131] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21130] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21132 [pid 21131] <... prctl resumed>) = 0 [pid 21131] setpgid(0, 0) = 0 [pid 21131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21131] write(3, "1000", 4) = 4 [pid 21131] close(3) = 0 [pid 21131] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21127] <... futex resumed>) = 0 [pid 21131] <... futex resumed>) = 0 [pid 21131] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21129] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 21132 attached [pid 21131] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21129] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21127] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21132] set_robust_list(0x555556ba76e0, 24 [pid 21131] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21130] <... futex resumed>) = 0 [pid 21129] <... futex resumed>) = 1 [pid 21128] <... futex resumed>) = 0 [pid 21127] <... futex resumed>) = 1 [pid 21132] <... set_robust_list resumed>) = 0 [pid 21131] <... mprotect resumed>) = 0 [pid 21130] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21129] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21128] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21127] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21132] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21131] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21129] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21128] <... futex resumed>) = 0 [pid 21132] <... prctl resumed>) = 0 [pid 21129] write(5, NULL, 176 [pid 21128] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21132] setpgid(0, 0 [pid 21129] <... write resumed>) = -1 EFAULT (Bad address) [pid 21132] <... setpgid resumed>) = 0 [pid 21129] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21129] <... futex resumed>) = 1 [pid 21128] <... futex resumed>) = 0 [pid 21132] <... openat resumed>) = 3 [pid 21129] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21128] exit_group(0 [pid 21132] write(3, "1000", 4 [pid 21131] <... clone resumed>, parent_tid=[21133], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21133 [pid 21129] <... futex resumed>) = ? [pid 21128] <... exit_group resumed>) = ? [pid 21132] <... write resumed>) = 4 [pid 21131] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21129] +++ exited with 0 +++ [pid 21128] +++ exited with 0 +++ [pid 21132] close(3 [pid 21131] <... futex resumed>) = 0 [pid 21132] <... close resumed>) = 0 [pid 21131] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21128, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21132] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 21132] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 21132] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21132] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21132] <... clone resumed>, parent_tid=[21134], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21134 [pid 21132] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21130] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] <... openat resumed>) = 3 [pid 21132] <... futex resumed>) = 0 [pid 21130] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21132] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21130] <... futex resumed>) = 1 [pid 21127] <... futex resumed>) = 0 [pid 3607] close(3./strace-static-x86_64: Process 21134 attached ./strace-static-x86_64: Process 21133 attached [pid 21130] write(5, NULL, 176 [pid 21127] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 21134] set_robust_list(0x7f61a3ef39e0, 24 [pid 21133] set_robust_list(0x7f61a3ef39e0, 24 [pid 21130] <... write resumed>) = -1 EFAULT (Bad address) [pid 21127] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21134] <... set_robust_list resumed>) = 0 [pid 21133] <... set_robust_list resumed>) = 0 [pid 21130] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21127] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21134] mkdir("./file0", 0777 [pid 21133] mkdir("./file0", 0777 [pid 21130] <... futex resumed>) = 0 [pid 21127] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21135 [pid 21134] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21133] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21130] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21127] exit_group(0./strace-static-x86_64: Process 21135 attached [pid 21134] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21133] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21127] <... exit_group resumed>) = ? [pid 21135] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21135] setpgid(0, 0) = 0 [pid 21135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21135] write(3, "1000", 4) = 4 [pid 21135] close(3) = 0 [pid 21135] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21135] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21135] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21130] <... futex resumed>) = ? [pid 21135] <... mprotect resumed>) = 0 [pid 21134] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21133] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21135] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21136], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21136 [pid 21135] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21133] <... futex resumed>) = 1 [pid 21130] +++ exited with 0 +++ [pid 21131] <... futex resumed>) = 0 [pid 21127] +++ exited with 0 +++ [pid 21134] <... futex resumed>) = 1 [pid 21132] <... futex resumed>) = 0 [pid 21135] <... futex resumed>) = 0 [pid 21134] pipe2( [pid 21133] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21132] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21131] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21127, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- ./strace-static-x86_64: Process 21136 attached [pid 21135] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21134] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21133] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21132] <... futex resumed>) = 0 [pid 21131] <... futex resumed>) = 0 [pid 21134] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21133] pipe2( [pid 21132] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21131] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21134] <... futex resumed>) = 0 [pid 21133] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21134] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21133] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21132] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21133] <... futex resumed>) = 1 [pid 21132] <... futex resumed>) = 0 [pid 21131] <... futex resumed>) = 0 [pid 21134] dup(4 [pid 21133] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21132] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21131] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21134] <... dup resumed>) = 5 [pid 21133] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21131] <... futex resumed>) = 0 [pid 21134] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21133] dup(4 [pid 21131] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21136] set_robust_list(0x7f61a3ef39e0, 24 [pid 21134] <... futex resumed>) = 1 [pid 21133] <... dup resumed>) = 5 [pid 21132] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 21136] <... set_robust_list resumed>) = 0 [pid 21134] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21133] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21132] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21136] mkdir("./file0", 0777 [pid 21134] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21133] <... futex resumed>) = 1 [pid 21132] <... futex resumed>) = 0 [pid 21131] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21136] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21134] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21133] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21132] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21131] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 21136] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21136] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21135] <... futex resumed>) = 0 [pid 21136] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21135] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21135] <... futex resumed>) = 0 [pid 21133] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21131] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 21136] pipe2( [pid 21135] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21136] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21136] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21135] <... futex resumed>) = 0 [pid 21136] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21135] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21135] <... futex resumed>) = 0 [pid 21136] dup(4 [pid 21135] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21136] <... dup resumed>) = 5 [pid 21136] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21135] <... futex resumed>) = 0 [pid 21136] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21135] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21135] <... futex resumed>) = 0 [pid 21136] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21135] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21133] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21131] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 21137 ./strace-static-x86_64: Process 21137 attached [pid 21137] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21137] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21134] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21137] <... prctl resumed>) = 0 [pid 21134] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21137] setpgid(0, 0 [pid 21134] <... futex resumed>) = 1 [pid 21132] <... futex resumed>) = 0 [pid 21137] <... setpgid resumed>) = 0 [pid 21134] write(5, NULL, 176 [pid 21132] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21136] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21134] <... write resumed>) = -1 EFAULT (Bad address) [pid 21132] <... futex resumed>) = 0 [pid 21137] <... openat resumed>) = 3 [pid 21136] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21134] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21133] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21132] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21137] write(3, "1000", 4 [pid 21136] <... futex resumed>) = 1 [pid 21135] <... futex resumed>) = 0 [pid 21134] <... futex resumed>) = 0 [pid 21133] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21132] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21137] <... write resumed>) = 4 [pid 21136] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21135] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21134] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21133] <... futex resumed>) = 1 [pid 21132] exit_group(0 [pid 21131] <... futex resumed>) = 0 [pid 21137] close(3 [pid 21136] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21135] <... futex resumed>) = 0 [pid 21134] <... futex resumed>) = ? [pid 21133] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21132] <... exit_group resumed>) = ? [pid 21131] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21137] <... close resumed>) = 0 [pid 21136] write(5, NULL, 176 [pid 21135] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21134] +++ exited with 0 +++ [pid 21133] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21131] <... futex resumed>) = 0 [pid 21133] write(5, NULL, 176 [pid 21131] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21132] +++ exited with 0 +++ [pid 21137] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21136] <... write resumed>) = -1 EFAULT (Bad address) [pid 21133] <... write resumed>) = -1 EFAULT (Bad address) [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21132, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21137] <... futex resumed>) = 0 [pid 21136] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21133] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21137] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21136] <... futex resumed>) = 1 [pid 21135] <... futex resumed>) = 0 [pid 21133] <... futex resumed>) = 1 [pid 21131] <... futex resumed>) = 0 [pid 21137] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21136] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21135] exit_group(0 [pid 21133] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21131] exit_group(0 [pid 21137] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21136] <... futex resumed>) = ? [pid 21135] <... exit_group resumed>) = ? [pid 21133] <... futex resumed>) = ? [pid 21131] <... exit_group resumed>) = ? [pid 21137] <... mprotect resumed>) = 0 [pid 21136] +++ exited with 0 +++ [pid 21135] +++ exited with 0 +++ [pid 21133] +++ exited with 0 +++ [pid 21131] +++ exited with 0 +++ [pid 21137] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21135, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21131, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21137] <... clone resumed>, parent_tid=[21138], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21138 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] <... openat resumed>) = 3 [pid 21137] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 3604] <... openat resumed>) = 3 [pid 21137] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21137] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] close(3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... close resumed>) = 0 ./strace-static-x86_64: Process 21138 attached [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3604] close(3 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21138] set_robust_list(0x7f61a3ef39e0, 24 [pid 3607] <... openat resumed>) = 3 [pid 3604] <... close resumed>) = 0 ./strace-static-x86_64: Process 21139 attached [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21139] set_robust_list(0x555556ba76e0, 24 [pid 21138] <... set_robust_list resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21139 [pid 21139] <... set_robust_list resumed>) = 0 [pid 3607] close(3 [pid 21139] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3607] <... close resumed>) = 0 [pid 21139] <... prctl resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21139] setpgid(0, 0) = 0 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21141 [pid 21139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21139] write(3, "1000", 4) = 4 [pid 21139] close(3) = 0 [pid 21139] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21139] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21139] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 21140 attached [pid 21139] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21140] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21139] <... clone resumed>, parent_tid=[21142], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21142 [pid 21140] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21139] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21140] <... prctl resumed>) = 0 [pid 21139] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21142 attached ./strace-static-x86_64: Process 21141 attached [pid 21140] setpgid(0, 0 [pid 21139] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21138] mkdir("./file0", 0777 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21140 [pid 21142] set_robust_list(0x7f61a3ef39e0, 24 [pid 21141] set_robust_list(0x555556ba76e0, 24 [pid 21140] <... setpgid resumed>) = 0 [pid 21138] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21138] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21142] <... set_robust_list resumed>) = 0 [pid 21141] <... set_robust_list resumed>) = 0 [pid 21140] <... openat resumed>) = 3 [pid 21138] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21140] write(3, "1000", 4 [pid 21138] <... futex resumed>) = 1 [pid 21137] <... futex resumed>) = 0 [pid 21141] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21140] <... write resumed>) = 4 [pid 21138] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21137] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21141] <... prctl resumed>) = 0 [pid 21140] close(3 [pid 21138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21137] <... futex resumed>) = 0 [pid 21141] setpgid(0, 0 [pid 21140] <... close resumed>) = 0 [pid 21138] pipe2( [pid 21137] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21141] <... setpgid resumed>) = 0 [pid 21140] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21138] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21140] <... futex resumed>) = 0 [pid 21138] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21140] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21138] <... futex resumed>) = 1 [pid 21137] <... futex resumed>) = 0 [pid 21141] <... openat resumed>) = 3 [pid 21140] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21138] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21137] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21142] mkdir("./file0", 0777 [pid 21141] write(3, "1000", 4 [pid 21140] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21137] <... futex resumed>) = 0 [pid 21141] <... write resumed>) = 4 [pid 21140] <... mprotect resumed>) = 0 [pid 21138] dup(4 [pid 21137] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21142] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21141] close(3 [pid 21140] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21138] <... dup resumed>) = 5 [pid 21142] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- ./strace-static-x86_64: Process 21143 attached [pid 21142] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21141] <... close resumed>) = 0 [pid 21138] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21142] <... futex resumed>) = 1 [pid 21141] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21140] <... clone resumed>, parent_tid=[21143], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21143 [pid 21139] <... futex resumed>) = 0 [pid 21138] <... futex resumed>) = 1 [pid 21137] <... futex resumed>) = 0 [pid 21142] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21141] <... futex resumed>) = 0 [pid 21140] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21139] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21138] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21137] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21141] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21140] <... futex resumed>) = 0 [pid 21139] <... futex resumed>) = 0 [pid 21138] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21137] <... futex resumed>) = 0 [pid 21142] pipe2( [pid 21141] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21140] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21139] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21138] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21137] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21142] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21141] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21143] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21143] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21143] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21142] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21141] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21143] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21140] <... futex resumed>) = 0 [pid 21143] pipe2( [pid 21142] <... futex resumed>) = 1 [pid 21140] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21139] <... futex resumed>) = 0 [pid 21143] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21142] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21141] <... clone resumed>, parent_tid=[21144], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21144 [pid 21140] <... futex resumed>) = 0 [pid 21139] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21143] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21141] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21140] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21139] <... futex resumed>) = 0 [pid 21143] <... futex resumed>) = 0 [pid 21142] dup(4 [pid 21141] <... futex resumed>) = 0 [pid 21140] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21139] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21143] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21140] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21140] <... futex resumed>) = 0 [pid 21143] dup(4 [pid 21140] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21143] <... dup resumed>) = 5 [pid 21143] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21140] <... futex resumed>) = 0 [pid 21143] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21140] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21140] <... futex resumed>) = 0 [pid 21143] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21140] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21142] <... dup resumed>) = 5 [pid 21141] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21142] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21139] <... futex resumed>) = 0 [pid 21142] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21139] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21139] <... futex resumed>) = 0 [pid 21142] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21139] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21144 attached [pid 21144] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21138] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21144] mkdir("./file0", 0777 [pid 21138] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21137] <... futex resumed>) = 0 [pid 21138] write(5, NULL, 176 [pid 21137] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21138] <... write resumed>) = -1 EFAULT (Bad address) [pid 21137] <... futex resumed>) = 0 [pid 21138] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21137] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21138] <... futex resumed>) = 0 [pid 21137] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21144] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21138] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21137] exit_group(0 [pid 21143] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21144] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21138] <... futex resumed>) = ? [pid 21137] <... exit_group resumed>) = ? [pid 21144] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21143] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21142] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21138] +++ exited with 0 +++ [pid 21137] +++ exited with 0 +++ [pid 21144] <... futex resumed>) = 1 [pid 21143] <... futex resumed>) = 1 [pid 21142] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21141] <... futex resumed>) = 0 [pid 21140] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21137, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21144] pipe2( [pid 21143] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21142] <... futex resumed>) = 1 [pid 21141] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21140] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21139] <... futex resumed>) = 0 [pid 21144] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21143] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21142] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21141] <... futex resumed>) = 0 [pid 21140] <... futex resumed>) = 0 [pid 21139] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21144] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21143] write(5, NULL, 176 [pid 21142] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21141] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21140] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21139] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21144] <... futex resumed>) = 0 [pid 21143] <... write resumed>) = -1 EFAULT (Bad address) [pid 21142] write(5, NULL, 176 [pid 21141] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21139] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... openat resumed>) = 3 [pid 21144] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21143] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21142] <... write resumed>) = -1 EFAULT (Bad address) [pid 21141] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21143] <... futex resumed>) = 1 [pid 21142] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21141] <... futex resumed>) = 0 [pid 21140] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21144] dup(4 [pid 21143] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21142] <... futex resumed>) = 1 [pid 21141] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21140] exit_group(0 [pid 21139] <... futex resumed>) = 0 [pid 3606] close(3 [pid 21144] <... dup resumed>) = 5 [pid 21143] <... futex resumed>) = ? [pid 21142] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21140] <... exit_group resumed>) = ? [pid 21139] exit_group(0 [pid 3606] <... close resumed>) = 0 [pid 21144] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21143] +++ exited with 0 +++ [pid 21142] <... futex resumed>) = ? [pid 21140] +++ exited with 0 +++ [pid 21139] <... exit_group resumed>) = ? [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21144] <... futex resumed>) = 1 [pid 21142] +++ exited with 0 +++ [pid 21141] <... futex resumed>) = 0 [pid 21139] +++ exited with 0 +++ [pid 21144] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21141] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21145 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21140, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21141] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21139, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21144] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21141] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 3601] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 [pid 3604] close(3 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21146 ./strace-static-x86_64: Process 21145 attached [pid 21145] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21145] setpgid(0, 0) = 0 [pid 21145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21145] write(3, "1000", 4) = 4 [pid 21145] close(3) = 0 [pid 21145] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21145] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 ./strace-static-x86_64: Process 21146 attached [pid 21145] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21146] set_robust_list(0x555556ba76e0, 24 [pid 21145] <... mprotect resumed>) = 0 [pid 21146] <... set_robust_list resumed>) = 0 [pid 21145] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21145] <... clone resumed>, parent_tid=[21148], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21148 [pid 21146] setpgid(0, 0 [pid 21145] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21146] <... setpgid resumed>) = 0 [pid 21145] <... futex resumed>) = 0 [pid 21146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21145] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21146] <... openat resumed>) = 3 [pid 21146] write(3, "1000", 4) = 4 [pid 21146] close(3) = 0 [pid 21146] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21146] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21146] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21147 [pid 21146] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 21148 attached [pid 21146] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21148] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21146] <... clone resumed>, parent_tid=[21149], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21149 [pid 21148] mkdir("./file0", 0777 [pid 21146] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21148] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21146] <... futex resumed>) = 0 [pid 21148] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21146] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21148] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21145] <... futex resumed>) = 0 [pid 21148] pipe2( [pid 21145] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21148] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21145] <... futex resumed>) = 0 [pid 21148] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21145] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21149 attached ./strace-static-x86_64: Process 21147 attached [pid 21148] <... futex resumed>) = 0 [pid 21145] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21148] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21147] set_robust_list(0x555556ba76e0, 24 [pid 21145] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21144] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21149] set_robust_list(0x7f61a3ef39e0, 24 [pid 21148] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21147] <... set_robust_list resumed>) = 0 [pid 21145] <... futex resumed>) = 0 [pid 21144] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21149] <... set_robust_list resumed>) = 0 [pid 21148] dup(4 [pid 21147] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21145] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21144] <... futex resumed>) = 1 [pid 21141] <... futex resumed>) = 0 [pid 21149] mkdir("./file0", 0777 [pid 21148] <... dup resumed>) = 5 [pid 21147] <... prctl resumed>) = 0 [pid 21144] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21141] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21149] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21148] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21147] setpgid(0, 0 [pid 21144] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21141] <... futex resumed>) = 0 [pid 21149] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21148] <... futex resumed>) = 1 [pid 21147] <... setpgid resumed>) = 0 [pid 21145] <... futex resumed>) = 0 [pid 21144] write(5, NULL, 176 [pid 21141] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21149] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21148] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21145] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21144] <... write resumed>) = -1 EFAULT (Bad address) [pid 21149] <... futex resumed>) = 1 [pid 21148] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21146] <... futex resumed>) = 0 [pid 21145] <... futex resumed>) = 0 [pid 21144] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21149] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21148] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21147] <... openat resumed>) = 3 [pid 21146] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21145] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21144] <... futex resumed>) = 1 [pid 21141] <... futex resumed>) = 0 [pid 21149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21147] write(3, "1000", 4 [pid 21146] <... futex resumed>) = 0 [pid 21144] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21141] exit_group(0 [pid 21149] pipe2( [pid 21147] <... write resumed>) = 4 [pid 21146] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21144] <... futex resumed>) = ? [pid 21141] <... exit_group resumed>) = ? [pid 21147] close(3 [pid 21144] +++ exited with 0 +++ [pid 21141] +++ exited with 0 +++ [pid 21149] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21147] <... close resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21141, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21149] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21147] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21149] <... futex resumed>) = 1 [pid 21147] <... futex resumed>) = 0 [pid 21146] <... futex resumed>) = 0 [pid 21149] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21147] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21146] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21147] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21146] <... futex resumed>) = 0 [pid 21149] dup(4 [pid 21147] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21146] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21149] <... dup resumed>) = 5 [pid 21148] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21147] <... mprotect resumed>) = 0 [pid 21149] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21148] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21147] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21149] <... futex resumed>) = 1 [pid 21148] <... futex resumed>) = 1 [pid 21146] <... futex resumed>) = 0 [pid 21145] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21150 attached [pid 21149] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21148] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21147] <... clone resumed>, parent_tid=[21150], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21150 [pid 21146] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21145] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21148] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21147] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21146] <... futex resumed>) = 0 [pid 21145] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 21149] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21148] write(5, NULL, 176 [pid 21147] <... futex resumed>) = 0 [pid 21146] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21145] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21147] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21148] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21150] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21150] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21150] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21148] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 21150] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21148] <... futex resumed>) = 1 [pid 21145] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 21150] <... futex resumed>) = 1 [pid 21148] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21147] <... futex resumed>) = 0 [pid 21145] exit_group(0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21150] pipe2( [pid 21148] <... futex resumed>) = ? [pid 21147] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21145] <... exit_group resumed>) = ? [pid 21150] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21147] <... futex resumed>) = 0 [pid 21150] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21147] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21150] <... futex resumed>) = 0 [pid 21147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21150] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21147] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21150] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21147] <... futex resumed>) = 0 [pid 21150] dup(4 [pid 21147] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21150] <... dup resumed>) = 5 [pid 21150] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21148] +++ exited with 0 +++ [pid 21145] +++ exited with 0 +++ [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21151 [pid 21150] <... futex resumed>) = 1 [pid 21147] <... futex resumed>) = 0 [pid 21150] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21147] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21150] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21147] <... futex resumed>) = 0 [pid 21150] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21147] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21151 attached [pid 21151] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21145, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 21151] setpgid(0, 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 21151] <... setpgid resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 21151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3606] <... close resumed>) = 0 [pid 21151] <... openat resumed>) = 3 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21152 attached [pid 21151] write(3, "1000", 4 [pid 21150] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21149] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21152] set_robust_list(0x555556ba76e0, 24 [pid 21151] <... write resumed>) = 4 [pid 21150] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21149] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21152 [pid 21152] <... set_robust_list resumed>) = 0 [pid 21151] close(3 [pid 21150] <... futex resumed>) = 1 [pid 21149] <... futex resumed>) = 1 [pid 21147] <... futex resumed>) = 0 [pid 21146] <... futex resumed>) = 0 [pid 21152] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21151] <... close resumed>) = 0 [pid 21150] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21149] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21147] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21146] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21152] <... prctl resumed>) = 0 [pid 21151] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21150] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21149] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21147] <... futex resumed>) = 0 [pid 21146] <... futex resumed>) = 0 [pid 21152] setpgid(0, 0 [pid 21151] <... futex resumed>) = 0 [pid 21150] write(5, NULL, 176 [pid 21149] write(5, NULL, 176 [pid 21146] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21152] <... setpgid resumed>) = 0 [pid 21151] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21150] <... write resumed>) = -1 EFAULT (Bad address) [pid 21149] <... write resumed>) = -1 EFAULT (Bad address) [pid 21147] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21151] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21150] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21149] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21147] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21152] <... openat resumed>) = 3 [pid 21151] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21150] <... futex resumed>) = 0 [pid 21149] <... futex resumed>) = 1 [pid 21147] exit_group(0 [pid 21146] <... futex resumed>) = 0 [pid 21152] write(3, "1000", 4 [pid 21151] <... mprotect resumed>) = 0 [pid 21149] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21147] <... exit_group resumed>) = ? [pid 21146] exit_group(0 [pid 21152] <... write resumed>) = 4 [pid 21151] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21150] +++ exited with 0 +++ [pid 21149] <... futex resumed>) = ? [pid 21146] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 21153 attached [pid 21152] close(3 [pid 21149] +++ exited with 0 +++ [pid 21147] +++ exited with 0 +++ [pid 21153] set_robust_list(0x7f61a3ef39e0, 24 [pid 21151] <... clone resumed>, parent_tid=[21153], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21153 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21147, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21153] <... set_robust_list resumed>) = 0 [pid 21151] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21153] mkdir("./file0", 0777 [pid 21151] <... futex resumed>) = 0 [pid 21146] +++ exited with 0 +++ [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21146, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21153] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21152] <... close resumed>) = 0 [pid 21151] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21153] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21152] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 21153] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21152] <... futex resumed>) = 0 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21153] <... futex resumed>) = 1 [pid 21152] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21151] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21153] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21152] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21151] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 21153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21152] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21151] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 21153] pipe2( [pid 21152] <... mprotect resumed>) = 0 [pid 21151] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 21154 attached [pid 21153] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21152] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 21155 attached [pid 21154] set_robust_list(0x555556ba76e0, 24 [pid 21153] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21154 [pid 3601] close(3 [pid 21154] <... set_robust_list resumed>) = 0 [pid 21153] <... futex resumed>) = 1 [pid 21152] <... clone resumed>, parent_tid=[21155], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21155 [pid 21151] <... futex resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 21155] set_robust_list(0x7f61a3ef39e0, 24 [pid 21154] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21153] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21152] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21151] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21154] <... prctl resumed>) = 0 [pid 21153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21152] <... futex resumed>) = 0 [pid 21151] <... futex resumed>) = 0 [pid 21154] setpgid(0, 0 [pid 21153] dup(4 [pid 21151] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21152] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21154] <... setpgid resumed>) = 0 [pid 21153] <... dup resumed>) = 5 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21156 [pid 21155] <... set_robust_list resumed>) = 0 [pid 21154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21153] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21156 attached [pid 21155] mkdir("./file0", 0777 [pid 21154] <... openat resumed>) = 3 [pid 21153] <... futex resumed>) = 1 [pid 21151] <... futex resumed>) = 0 [pid 21155] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21154] write(3, "1000", 4 [pid 21153] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21151] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21155] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21154] <... write resumed>) = 4 [pid 21153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21151] <... futex resumed>) = 0 [pid 21155] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21154] close(3 [pid 21153] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21151] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21156] set_robust_list(0x555556ba76e0, 24 [pid 21155] <... futex resumed>) = 1 [pid 21154] <... close resumed>) = 0 [pid 21152] <... futex resumed>) = 0 [pid 21156] <... set_robust_list resumed>) = 0 [pid 21155] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21152] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21156] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21155] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21154] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21152] <... futex resumed>) = 0 [pid 21156] <... prctl resumed>) = 0 [pid 21155] pipe2( [pid 21152] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21156] setpgid(0, 0 [pid 21155] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21154] <... futex resumed>) = 0 [pid 21156] <... setpgid resumed>) = 0 [pid 21155] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21154] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21155] <... futex resumed>) = 1 [pid 21152] <... futex resumed>) = 0 [pid 21156] <... openat resumed>) = 3 [pid 21155] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21154] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21152] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21156] write(3, "1000", 4 [pid 21155] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21152] <... futex resumed>) = 0 [pid 21156] <... write resumed>) = 4 [pid 21155] dup(4 [pid 21152] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21156] close(3 [pid 21155] <... dup resumed>) = 5 [pid 21156] <... close resumed>) = 0 [pid 21155] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21156] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21155] <... futex resumed>) = 1 [pid 21152] <... futex resumed>) = 0 [pid 21156] <... futex resumed>) = 0 [pid 21155] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21152] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21156] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21155] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21152] <... futex resumed>) = 0 [pid 21156] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21155] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21152] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21156] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21156] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21154] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21156] <... clone resumed>, parent_tid=[21157], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21157 ./strace-static-x86_64: Process 21157 attached [pid 21154] <... mprotect resumed>) = 0 [pid 21153] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21157] set_robust_list(0x7f61a3ef39e0, 24 [pid 21156] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21154] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21153] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21157] <... set_robust_list resumed>) = 0 [pid 21153] <... futex resumed>) = 1 [pid 21151] <... futex resumed>) = 0 [pid 21157] mkdir("./file0", 0777 [pid 21156] <... futex resumed>) = 0 [pid 21154] <... clone resumed>, parent_tid=[21158], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21158 [pid 21153] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21151] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21158 attached [pid 21157] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21156] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21154] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21153] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21151] <... futex resumed>) = 0 [pid 21157] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21154] <... futex resumed>) = 0 [pid 21153] write(5, NULL, 176 [pid 21151] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21157] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21156] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21154] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21153] <... write resumed>) = -1 EFAULT (Bad address) [pid 21158] set_robust_list(0x7f61a3ef39e0, 24 [pid 21157] <... futex resumed>) = 0 [pid 21156] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21155] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21153] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21158] <... set_robust_list resumed>) = 0 [pid 21157] pipe2( [pid 21156] <... futex resumed>) = 0 [pid 21155] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21153] <... futex resumed>) = 1 [pid 21151] <... futex resumed>) = 0 [pid 21158] mkdir("./file0", 0777 [pid 21157] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21156] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21155] <... futex resumed>) = 1 [pid 21153] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21152] <... futex resumed>) = 0 [pid 21151] exit_group(0 [pid 21158] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21157] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21156] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21155] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21153] <... futex resumed>) = ? [pid 21152] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21151] <... exit_group resumed>) = ? [pid 21158] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21157] <... futex resumed>) = 0 [pid 21156] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21155] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21153] +++ exited with 0 +++ [pid 21152] <... futex resumed>) = 0 [pid 21151] +++ exited with 0 +++ [pid 21158] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21157] dup(4 [pid 21156] <... futex resumed>) = 0 [pid 21155] write(5, NULL, 176 [pid 21152] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21151, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21158] <... futex resumed>) = 1 [pid 21157] <... dup resumed>) = 5 [pid 21156] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21155] <... write resumed>) = -1 EFAULT (Bad address) [pid 21154] <... futex resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 21158] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21157] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21156] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21155] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21154] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... restart_syscall resumed>) = 0 [pid 21158] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21157] <... futex resumed>) = 0 [pid 21156] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21155] <... futex resumed>) = 1 [pid 21154] <... futex resumed>) = 0 [pid 21152] <... futex resumed>) = 0 [pid 21158] pipe2( [pid 21157] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21156] <... futex resumed>) = 0 [pid 21155] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21154] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21152] exit_group(0 [pid 21158] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21156] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21155] <... futex resumed>) = ? [pid 21152] <... exit_group resumed>) = ? [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21158] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21155] +++ exited with 0 +++ [pid 21152] +++ exited with 0 +++ [pid 3607] <... openat resumed>) = 3 [pid 21157] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21158] <... futex resumed>) = 1 [pid 21157] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21154] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21158] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21157] <... futex resumed>) = 1 [pid 21156] <... futex resumed>) = 0 [pid 21154] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21152, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21158] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21157] write(5, NULL, 176 [pid 21156] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21154] <... futex resumed>) = 0 [pid 3607] close(3 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 21158] dup(4 [pid 21157] <... write resumed>) = -1 EFAULT (Bad address) [pid 21156] <... futex resumed>) = 0 [pid 21154] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... close resumed>) = 0 [pid 21157] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21156] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... restart_syscall resumed>) = 0 [pid 21157] <... futex resumed>) = 0 [pid 21156] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21157] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21156] exit_group(0 [pid 21158] <... dup resumed>) = 5 [pid 21157] <... futex resumed>) = ? [pid 21156] <... exit_group resumed>) = ? [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21159 [pid 21158] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21157] +++ exited with 0 +++ ./strace-static-x86_64: Process 21159 attached [pid 21156] +++ exited with 0 +++ [pid 21154] <... futex resumed>) = 0 [pid 21158] <... futex resumed>) = 1 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21154] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21158] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21154] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21156, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21154] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21159] set_robust_list(0x555556ba76e0, 24 [pid 3601] <... openat resumed>) = 3 [pid 21159] <... set_robust_list resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21160 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21159] setpgid(0, 0 [pid 3601] close(3 [pid 21159] <... setpgid resumed>) = 0 [pid 3601] <... close resumed>) = 0 [pid 21159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21159] <... openat resumed>) = 3 [pid 21159] write(3, "1000", 4) = 4 [pid 21159] close(3) = 0 [pid 21159] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21159] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21159] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21159] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21161 [pid 21159] <... clone resumed>, parent_tid=[21162], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21162 ./strace-static-x86_64: Process 21161 attached [pid 21159] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21161] set_robust_list(0x555556ba76e0, 24 [pid 21159] <... futex resumed>) = 0 [pid 21161] <... set_robust_list resumed>) = 0 [pid 21159] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21161] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21158] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21161] <... prctl resumed>) = 0 [pid 21158] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21160 attached [pid 21161] setpgid(0, 0 [pid 21158] <... futex resumed>) = 1 [pid 21154] <... futex resumed>) = 0 [pid 21161] <... setpgid resumed>) = 0 [pid 21154] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21162 attached [pid 21161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21160] set_robust_list(0x555556ba76e0, 24 [pid 21158] write(5, NULL, 176 [pid 21154] <... futex resumed>) = 0 [pid 21162] set_robust_list(0x7f61a3ef39e0, 24 [pid 21161] <... openat resumed>) = 3 [pid 21160] <... set_robust_list resumed>) = 0 [pid 21158] <... write resumed>) = -1 EFAULT (Bad address) [pid 21154] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21162] <... set_robust_list resumed>) = 0 [pid 21161] write(3, "1000", 4 [pid 21160] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21158] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21162] mkdir("./file0", 0777 [pid 21161] <... write resumed>) = 4 [pid 21160] <... prctl resumed>) = 0 [pid 21158] <... futex resumed>) = 1 [pid 21154] <... futex resumed>) = 0 [pid 21162] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21161] close(3 [pid 21160] setpgid(0, 0 [pid 21158] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21154] exit_group(0 [pid 21162] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21161] <... close resumed>) = 0 [pid 21160] <... setpgid resumed>) = 0 [pid 21158] <... futex resumed>) = ? [pid 21154] <... exit_group resumed>) = ? [pid 21162] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21161] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21161] <... futex resumed>) = 0 [pid 21158] +++ exited with 0 +++ [pid 21161] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21154] +++ exited with 0 +++ [pid 21162] <... futex resumed>) = 1 [pid 21161] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21160] <... openat resumed>) = 3 [pid 21159] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21154, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21162] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21161] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21160] write(3, "1000", 4 [pid 21159] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21161] <... mprotect resumed>) = 0 [pid 21160] <... write resumed>) = 4 [pid 21159] <... futex resumed>) = 0 [pid 21162] pipe2( [pid 21161] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21160] close(3 [pid 21159] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21161] <... clone resumed>, parent_tid=[21163], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21163 [pid 21161] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21161] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 21161] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21162] <... pipe2 resumed>[3, 4], 0) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21160] <... close resumed>) = 0 [pid 21162] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21160] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 21162] <... futex resumed>) = 1 [pid 21160] <... futex resumed>) = 0 [pid 21159] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 21162] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21160] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21159] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21160] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21159] <... futex resumed>) = 0 [pid 21162] dup(4 [pid 21160] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21159] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21164 [pid 21162] <... dup resumed>) = 5 [pid 21160] <... mprotect resumed>) = 0 [pid 21162] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21160] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 21163 attached [pid 21162] <... futex resumed>) = 1 [pid 21159] <... futex resumed>) = 0 [pid 21163] set_robust_list(0x7f61a3ef39e0, 24 [pid 21162] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21160] <... clone resumed>, parent_tid=[21165], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21165 [pid 21159] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21165 attached ./strace-static-x86_64: Process 21164 attached [pid 21163] <... set_robust_list resumed>) = 0 [pid 21162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21160] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21159] <... futex resumed>) = 0 [pid 21162] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21160] <... futex resumed>) = 0 [pid 21159] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21163] mkdir("./file0", 0777 [pid 21165] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21165] mkdir("./file0", 0777 [pid 21160] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21165] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21165] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21165] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21164] set_robust_list(0x555556ba76e0, 24 [pid 21160] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21165] pipe2( [pid 21164] <... set_robust_list resumed>) = 0 [pid 21160] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21165] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21164] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21165] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21164] <... prctl resumed>) = 0 [pid 21160] <... futex resumed>) = 0 [pid 21165] <... futex resumed>) = 0 [pid 21160] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21165] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21164] setpgid(0, 0 [pid 21160] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21164] <... setpgid resumed>) = 0 [pid 21163] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21160] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21165] <... futex resumed>) = 0 [pid 21164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21163] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21160] <... futex resumed>) = 1 [pid 21165] dup(4 [pid 21164] <... openat resumed>) = 3 [pid 21165] <... dup resumed>) = 5 [pid 21164] write(3, "1000", 4 [pid 21165] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21164] <... write resumed>) = 4 [pid 21165] <... futex resumed>) = 0 [pid 21164] close(3 [pid 21165] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21164] <... close resumed>) = 0 [pid 21164] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21164] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21164] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21164] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21166], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21166 [pid 21164] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21164] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21166 attached [pid 21166] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21166] mkdir("./file0", 0777 [pid 21160] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 21163] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21160] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21165] <... futex resumed>) = 0 [pid 21163] <... futex resumed>) = 1 [pid 21161] <... futex resumed>) = 0 [pid 21160] <... futex resumed>) = 1 [pid 21165] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21163] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21161] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21160] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21161] <... futex resumed>) = 0 [pid 21163] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21161] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21163] pipe2([3, 4], 0) = 0 [pid 21166] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21163] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21166] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21166] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21163] <... futex resumed>) = 1 [pid 21161] <... futex resumed>) = 0 [pid 21166] <... futex resumed>) = 1 [pid 21164] <... futex resumed>) = 0 [pid 21161] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21166] pipe2( [pid 21164] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21163] dup(4 [pid 21162] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21161] <... futex resumed>) = 0 [pid 21164] <... futex resumed>) = 0 [pid 21163] <... dup resumed>) = 5 [pid 21162] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21161] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21164] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21163] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21162] <... futex resumed>) = 1 [pid 21161] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21159] <... futex resumed>) = 0 [pid 21163] <... futex resumed>) = 0 [pid 21162] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21161] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21159] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21166] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21165] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21163] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21162] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21161] <... futex resumed>) = 0 [pid 21159] <... futex resumed>) = 0 [pid 21166] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21165] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21162] write(5, NULL, 176 [pid 21161] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21159] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21166] <... futex resumed>) = 1 [pid 21165] <... futex resumed>) = 1 [pid 21164] <... futex resumed>) = 0 [pid 21166] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21165] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21164] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21162] <... write resumed>) = -1 EFAULT (Bad address) [pid 21160] <... futex resumed>) = 0 [pid 21166] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21164] <... futex resumed>) = 0 [pid 21162] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21160] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21166] dup(4 [pid 21164] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21166] <... dup resumed>) = 5 [pid 21166] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21164] <... futex resumed>) = 0 [pid 21166] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21164] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21166] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21165] <... futex resumed>) = 0 [pid 21164] <... futex resumed>) = 0 [pid 21162] <... futex resumed>) = 1 [pid 21160] <... futex resumed>) = 1 [pid 21159] <... futex resumed>) = 0 [pid 21166] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21165] write(5, NULL, 176 [pid 21164] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21162] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21160] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21159] exit_group(0 [pid 21165] <... write resumed>) = -1 EFAULT (Bad address) [pid 21159] <... exit_group resumed>) = ? [pid 21165] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21162] <... futex resumed>) = ? [pid 21160] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21165] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21160] exit_group(0 [pid 21165] <... futex resumed>) = ? [pid 21160] <... exit_group resumed>) = ? [pid 21165] +++ exited with 0 +++ [pid 21160] +++ exited with 0 +++ [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21160, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 21162] +++ exited with 0 +++ [pid 21159] +++ exited with 0 +++ [pid 3606] <... restart_syscall resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21159, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21163] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] <... openat resumed>) = 3 [pid 21163] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... openat resumed>) = 3 [pid 21163] <... futex resumed>) = 1 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21166] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21163] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21161] <... futex resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21166] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21161] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21166] <... futex resumed>) = 1 [pid 21164] <... futex resumed>) = 0 [pid 21163] <... futex resumed>) = 0 [pid 21161] <... futex resumed>) = 1 [pid 3607] <... close resumed>) = 0 [pid 3606] close(3 [pid 21166] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21164] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21163] write(5, NULL, 176 [pid 21161] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] <... close resumed>) = 0 [pid 21166] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21164] <... futex resumed>) = 0 [pid 21163] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21166] write(5, NULL, 176 [pid 21164] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21163] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21167 [pid 21166] <... write resumed>) = -1 EFAULT (Bad address) [pid 21163] <... futex resumed>) = 1 [pid 21161] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21168 ./strace-static-x86_64: Process 21168 attached [pid 21166] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21163] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21161] exit_group(0./strace-static-x86_64: Process 21167 attached [pid 21168] set_robust_list(0x555556ba76e0, 24 [pid 21166] <... futex resumed>) = 1 [pid 21164] <... futex resumed>) = 0 [pid 21163] <... futex resumed>) = ? [pid 21161] <... exit_group resumed>) = ? [pid 21166] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21164] exit_group(0 [pid 21166] <... futex resumed>) = ? [pid 21164] <... exit_group resumed>) = ? [pid 21168] <... set_robust_list resumed>) = 0 [pid 21167] set_robust_list(0x555556ba76e0, 24 [pid 21166] +++ exited with 0 +++ [pid 21164] +++ exited with 0 +++ [pid 21163] +++ exited with 0 +++ [pid 21161] +++ exited with 0 +++ [pid 21168] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21167] <... set_robust_list resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21161, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21168] <... prctl resumed>) = 0 [pid 21167] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21164, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21168] setpgid(0, 0 [pid 21167] <... prctl resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21168] <... setpgid resumed>) = 0 [pid 21167] setpgid(0, 0 [pid 21168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21167] <... setpgid resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 21168] <... openat resumed>) = 3 [pid 21167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21168] write(3, "1000", 4 [pid 21167] <... openat resumed>) = 3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21168] <... write resumed>) = 4 [pid 21167] write(3, "1000", 4 [pid 3604] close(3 [pid 3601] <... openat resumed>) = 3 [pid 21168] close(3 [pid 21167] <... write resumed>) = 4 [pid 3604] <... close resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21168] <... close resumed>) = 0 [pid 21167] close(3 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21168] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21167] <... close resumed>) = 0 [pid 3601] close(3 [pid 21168] <... futex resumed>) = 0 [pid 21167] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 ./strace-static-x86_64: Process 21169 attached [pid 21168] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21167] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21169 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21169] set_robust_list(0x555556ba76e0, 24 [pid 21168] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21167] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21169] <... set_robust_list resumed>) = 0 [pid 21169] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21168] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21167] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21169] <... prctl resumed>) = 0 [pid 21168] <... mprotect resumed>) = 0 [pid 21167] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21170 ./strace-static-x86_64: Process 21170 attached [pid 21169] setpgid(0, 0 [pid 21168] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21167] <... mprotect resumed>) = 0 [pid 21169] <... setpgid resumed>) = 0 [pid 21167] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21168] <... clone resumed>, parent_tid=[21171], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21171 [pid 21169] <... openat resumed>) = 3 [pid 21168] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21169] write(3, "1000", 4 [pid 21168] <... futex resumed>) = 0 [pid 21167] <... clone resumed>, parent_tid=[21172], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21172 [pid 21170] set_robust_list(0x555556ba76e0, 24 [pid 21169] <... write resumed>) = 4 [pid 21168] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21167] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21170] <... set_robust_list resumed>) = 0 [pid 21169] close(3 [pid 21167] <... futex resumed>) = 0 [pid 21169] <... close resumed>) = 0 [pid 21167] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21170] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21169] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21172 attached ./strace-static-x86_64: Process 21171 attached ) = 0 [pid 21170] <... prctl resumed>) = 0 [pid 21172] set_robust_list(0x7f61a3ef39e0, 24 [pid 21169] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21172] <... set_robust_list resumed>) = 0 [pid 21171] set_robust_list(0x7f61a3ef39e0, 24 [pid 21170] setpgid(0, 0 [pid 21169] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21172] mkdir("./file0", 0777 [pid 21171] <... set_robust_list resumed>) = 0 [pid 21170] <... setpgid resumed>) = 0 [pid 21169] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21172] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21171] mkdir("./file0", 0777 [pid 21170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21169] <... mprotect resumed>) = 0 [pid 21172] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21171] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21170] <... openat resumed>) = 3 [pid 21169] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 21173 attached [pid 21172] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21171] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21170] write(3, "1000", 4 [pid 21172] <... futex resumed>) = 1 [pid 21171] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21170] <... write resumed>) = 4 [pid 21169] <... clone resumed>, parent_tid=[21173], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21173 [pid 21167] <... futex resumed>) = 0 [pid 21172] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21171] <... futex resumed>) = 1 [pid 21170] close(3 [pid 21169] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21168] <... futex resumed>) = 0 [pid 21167] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21173] set_robust_list(0x7f61a3ef39e0, 24 [pid 21172] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21171] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21170] <... close resumed>) = 0 [pid 21169] <... futex resumed>) = 0 [pid 21168] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21167] <... futex resumed>) = 0 [pid 21172] pipe2( [pid 21171] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21170] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21169] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21168] <... futex resumed>) = 0 [pid 21167] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21173] <... set_robust_list resumed>) = 0 [pid 21172] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21171] pipe2( [pid 21170] <... futex resumed>) = 0 [pid 21168] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21172] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21171] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21170] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21173] mkdir("./file0", 0777 [pid 21172] <... futex resumed>) = 1 [pid 21171] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21170] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21167] <... futex resumed>) = 0 [pid 21173] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21172] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21171] <... futex resumed>) = 1 [pid 21170] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21168] <... futex resumed>) = 0 [pid 21167] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21173] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21172] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21171] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21170] <... mprotect resumed>) = 0 [pid 21168] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21167] <... futex resumed>) = 0 [pid 21173] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21172] dup(4 [pid 21171] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21170] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21168] <... futex resumed>) = 0 [pid 21167] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21173] <... futex resumed>) = 1 [pid 21172] <... dup resumed>) = 5 [pid 21171] dup(4 [pid 21169] <... futex resumed>) = 0 [pid 21168] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21173] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21172] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21171] <... dup resumed>) = 5 [pid 21170] <... clone resumed>, parent_tid=[21174], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21174 [pid 21169] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21173] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21172] <... futex resumed>) = 1 [pid 21171] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21170] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21169] <... futex resumed>) = 0 [pid 21167] <... futex resumed>) = 0 [pid 21173] pipe2( [pid 21172] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21171] <... futex resumed>) = 1 [pid 21170] <... futex resumed>) = 0 [pid 21169] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21168] <... futex resumed>) = 0 [pid 21167] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21174 attached [pid 21173] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21172] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21171] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21170] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21168] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21167] <... futex resumed>) = 0 [pid 21174] set_robust_list(0x7f61a3ef39e0, 24 [pid 21173] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21172] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21171] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21168] <... futex resumed>) = 0 [pid 21167] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21174] <... set_robust_list resumed>) = 0 [pid 21173] <... futex resumed>) = 1 [pid 21171] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21169] <... futex resumed>) = 0 [pid 21168] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21173] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21174] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21174] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21174] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21170] <... futex resumed>) = 0 [pid 21174] pipe2( [pid 21170] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21169] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21174] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21173] <... futex resumed>) = 0 [pid 21172] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21170] <... futex resumed>) = 0 [pid 21169] <... futex resumed>) = 1 [pid 21173] dup(4 [pid 21172] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21169] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21173] <... dup resumed>) = 5 [pid 21172] <... futex resumed>) = 1 [pid 21167] <... futex resumed>) = 0 [pid 21173] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21172] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21170] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21167] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21173] <... futex resumed>) = 1 [pid 21172] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21169] <... futex resumed>) = 0 [pid 21167] <... futex resumed>) = 0 [pid 21173] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21172] write(5, NULL, 176 [pid 21169] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21167] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21173] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21172] <... write resumed>) = -1 EFAULT (Bad address) [pid 21169] <... futex resumed>) = 0 [pid 21173] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21172] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21169] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21174] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21172] <... futex resumed>) = 1 [pid 21167] <... futex resumed>) = 0 [pid 21172] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21167] exit_group(0 [pid 21172] <... futex resumed>) = ? [pid 21167] <... exit_group resumed>) = ? [pid 21174] <... futex resumed>) = 1 [pid 21172] +++ exited with 0 +++ [pid 21171] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21170] <... futex resumed>) = 0 [pid 21174] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21171] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21170] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21167] +++ exited with 0 +++ [pid 21174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21171] <... futex resumed>) = 1 [pid 21170] <... futex resumed>) = 0 [pid 21168] <... futex resumed>) = 0 [pid 21174] dup(4 [pid 21171] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21170] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21168] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21167, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21174] <... dup resumed>) = 5 [pid 21171] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21168] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21174] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21171] write(5, NULL, 176 [pid 21168] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... openat resumed>) = 3 [pid 21174] <... futex resumed>) = 1 [pid 21171] <... write resumed>) = -1 EFAULT (Bad address) [pid 21170] <... futex resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21174] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21171] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21170] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21171] <... futex resumed>) = 1 [pid 21170] <... futex resumed>) = 0 [pid 21168] <... futex resumed>) = 0 [pid 3607] close(3 [pid 21174] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21171] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21170] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21168] exit_group(0 [pid 3607] <... close resumed>) = 0 [pid 21171] <... futex resumed>) = ? [pid 21168] <... exit_group resumed>) = ? [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21171] +++ exited with 0 +++ [pid 21168] +++ exited with 0 +++ [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21175 ./strace-static-x86_64: Process 21175 attached [pid 21173] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21168, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21175] set_robust_list(0x555556ba76e0, 24 [pid 21173] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21175] <... set_robust_list resumed>) = 0 [pid 21173] <... futex resumed>) = 1 [pid 21169] <... futex resumed>) = 0 [pid 21175] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21173] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21169] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21175] <... prctl resumed>) = 0 [pid 21173] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21169] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 21175] setpgid(0, 0 [pid 21173] write(5, NULL, 176 [pid 21169] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21175] <... setpgid resumed>) = 0 [pid 21173] <... write resumed>) = -1 EFAULT (Bad address) [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21173] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] close(3 [pid 21175] <... openat resumed>) = 3 [pid 21173] <... futex resumed>) = 1 [pid 21169] <... futex resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 21175] write(3, "1000", 4 [pid 21173] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21169] exit_group(0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21175] <... write resumed>) = 4 [pid 21173] <... futex resumed>) = ? [pid 21169] <... exit_group resumed>) = ? [pid 21175] close(3 [pid 21173] +++ exited with 0 +++ [pid 21169] +++ exited with 0 +++ [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21176 ./strace-static-x86_64: Process 21176 attached [pid 21175] <... close resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21169, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21176] set_robust_list(0x555556ba76e0, 24 [pid 21175] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21174] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21176] <... set_robust_list resumed>) = 0 [pid 21175] <... futex resumed>) = 0 [pid 21174] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21176] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21175] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21174] <... futex resumed>) = 1 [pid 21170] <... futex resumed>) = 0 [pid 21176] <... prctl resumed>) = 0 [pid 21175] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21174] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21170] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21176] setpgid(0, 0 [pid 21175] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21174] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21170] <... futex resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 21176] <... setpgid resumed>) = 0 [pid 21175] <... mprotect resumed>) = 0 [pid 21174] write(5, NULL, 176 [pid 21170] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21175] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21174] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21176] <... openat resumed>) = 3 [pid 21174] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 21176] write(3, "1000", 4 [pid 21175] <... clone resumed>, parent_tid=[21177], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21177 [pid 21174] <... futex resumed>) = 1 [pid 21170] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 21176] <... write resumed>) = 4 [pid 21175] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21174] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21170] exit_group(0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21177 attached [pid 21176] close(3 [pid 21175] <... futex resumed>) = 0 [pid 21174] <... futex resumed>) = ? [pid 21170] <... exit_group resumed>) = ? [pid 21177] set_robust_list(0x7f61a3ef39e0, 24 [pid 21176] <... close resumed>) = 0 [pid 21175] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21174] +++ exited with 0 +++ [pid 21170] +++ exited with 0 +++ [pid 21177] <... set_robust_list resumed>) = 0 [pid 21176] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21170, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21176] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21176] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3601] <... openat resumed>) = 3 [pid 21176] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21176] <... mprotect resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21176] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3601] close(3) = 0 [pid 21176] <... clone resumed>, parent_tid=[21179], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21179 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21178 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21177] mkdir("./file0", 0777 [pid 21176] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21180 ./strace-static-x86_64: Process 21178 attached [pid 21177] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21176] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21178] set_robust_list(0x555556ba76e0, 24 [pid 21177] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21178] <... set_robust_list resumed>) = 0 [pid 21177] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21175] <... futex resumed>) = 0 [pid 21178] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21177] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21175] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21178] <... prctl resumed>) = 0 [pid 21177] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21175] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21180 attached ./strace-static-x86_64: Process 21179 attached [pid 21178] setpgid(0, 0 [pid 21177] pipe2( [pid 21175] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21180] set_robust_list(0x555556ba76e0, 24 [pid 21179] set_robust_list(0x7f61a3ef39e0, 24 [pid 21178] <... setpgid resumed>) = 0 [pid 21177] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21180] <... set_robust_list resumed>) = 0 [pid 21179] <... set_robust_list resumed>) = 0 [pid 21178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21177] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21180] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21179] mkdir("./file0", 0777 [pid 21178] <... openat resumed>) = 3 [pid 21177] <... futex resumed>) = 1 [pid 21175] <... futex resumed>) = 0 [pid 21178] write(3, "1000", 4 [pid 21177] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21175] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21180] <... prctl resumed>) = 0 [pid 21179] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21178] <... write resumed>) = 4 [pid 21177] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21175] <... futex resumed>) = 0 [pid 21180] setpgid(0, 0 [pid 21179] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21178] close(3 [pid 21177] dup(4 [pid 21175] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21180] <... setpgid resumed>) = 0 [pid 21179] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21178] <... close resumed>) = 0 [pid 21177] <... dup resumed>) = 5 [pid 21180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21179] <... futex resumed>) = 1 [pid 21178] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21177] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21176] <... futex resumed>) = 0 [pid 21180] <... openat resumed>) = 3 [pid 21179] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21178] <... futex resumed>) = 0 [pid 21177] <... futex resumed>) = 1 [pid 21176] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21175] <... futex resumed>) = 0 [pid 21180] write(3, "1000", 4 [pid 21179] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21178] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21177] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21176] <... futex resumed>) = 0 [pid 21175] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21180] <... write resumed>) = 4 [pid 21179] pipe2( [pid 21178] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21177] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21176] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21175] <... futex resumed>) = 0 [pid 21180] close(3 [pid 21179] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21178] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21177] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21175] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21180] <... close resumed>) = 0 [pid 21179] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21178] <... mprotect resumed>) = 0 [pid 21180] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21179] <... futex resumed>) = 1 [pid 21176] <... futex resumed>) = 0 [pid 21180] <... futex resumed>) = 0 [pid 21179] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21176] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21180] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21179] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21176] <... futex resumed>) = 0 [pid 21180] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21179] dup(4 [pid 21176] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21180] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21179] <... dup resumed>) = 5 [pid 21178] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21180] <... mprotect resumed>) = 0 [pid 21179] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21180] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21179] <... futex resumed>) = 1 [pid 21176] <... futex resumed>) = 0 [pid 21179] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21178] <... clone resumed>, parent_tid=[21181], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21181 [pid 21176] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21182 attached ./strace-static-x86_64: Process 21181 attached [pid 21180] <... clone resumed>, parent_tid=[21182], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21182 [pid 21179] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21178] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21177] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21176] <... futex resumed>) = 0 [pid 21182] set_robust_list(0x7f61a3ef39e0, 24 [pid 21181] set_robust_list(0x7f61a3ef39e0, 24 [pid 21180] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21179] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21178] <... futex resumed>) = 0 [pid 21177] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21176] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21182] <... set_robust_list resumed>) = 0 [pid 21181] <... set_robust_list resumed>) = 0 [pid 21180] <... futex resumed>) = 0 [pid 21178] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21177] <... futex resumed>) = 1 [pid 21175] <... futex resumed>) = 0 [pid 21181] mkdir("./file0", 0777 [pid 21177] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21175] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21181] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21180] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21177] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21175] <... futex resumed>) = 0 [pid 21181] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21177] write(5, NULL, 176 [pid 21175] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21181] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21177] <... write resumed>) = -1 EFAULT (Bad address) [pid 21181] <... futex resumed>) = 1 [pid 21178] <... futex resumed>) = 0 [pid 21177] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21181] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21178] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21177] <... futex resumed>) = 1 [pid 21175] <... futex resumed>) = 0 [pid 21181] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21178] <... futex resumed>) = 0 [pid 21177] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21175] exit_group(0 [pid 21181] pipe2( [pid 21178] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21177] <... futex resumed>) = ? [pid 21175] <... exit_group resumed>) = ? [pid 21182] mkdir("./file0", 0777 [pid 21181] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21179] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21177] +++ exited with 0 +++ [pid 21182] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21181] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21179] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21175] +++ exited with 0 +++ [pid 21181] <... futex resumed>) = 1 [pid 21179] <... futex resumed>) = 1 [pid 21178] <... futex resumed>) = 0 [pid 21176] <... futex resumed>) = 0 [pid 21182] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21182] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21181] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21179] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21178] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21176] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21175, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21182] <... futex resumed>) = 1 [pid 21181] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21180] <... futex resumed>) = 0 [pid 21179] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21178] <... futex resumed>) = 0 [pid 21176] <... futex resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21182] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21181] dup(4 [pid 21180] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21179] write(5, NULL, 176 [pid 21178] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21176] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... openat resumed>) = 3 [pid 21182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21181] <... dup resumed>) = 5 [pid 21180] <... futex resumed>) = 0 [pid 21179] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21182] pipe2( [pid 21181] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21180] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21179] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21182] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21181] <... futex resumed>) = 1 [pid 21179] <... futex resumed>) = 1 [pid 21178] <... futex resumed>) = 0 [pid 21176] <... futex resumed>) = 0 [pid 3607] close(3 [pid 21182] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21181] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21179] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21178] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21176] exit_group(0 [pid 3607] <... close resumed>) = 0 [pid 21182] <... futex resumed>) = 1 [pid 21180] <... futex resumed>) = 0 [pid 21179] <... futex resumed>) = ? [pid 21176] <... exit_group resumed>) = ? [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21182] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21181] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21180] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21179] +++ exited with 0 +++ [pid 21178] <... futex resumed>) = 0 [pid 21176] +++ exited with 0 +++ [pid 21182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21181] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21180] <... futex resumed>) = 0 [pid 21178] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21183 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21176, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21182] dup(4 [pid 21180] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21182] <... dup resumed>) = 5 [pid 21182] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21180] <... futex resumed>) = 0 [pid 21182] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21180] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21180] <... futex resumed>) = 0 [pid 21182] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21180] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 21183 attached ) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21183] set_robust_list(0x555556ba76e0, 24 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21184 [pid 21183] <... set_robust_list resumed>) = 0 [pid 21183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21183] setpgid(0, 0) = 0 [pid 21181] <... mount resumed>) = -1 EFAULT (Bad address) ./strace-static-x86_64: Process 21184 attached [pid 21183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21181] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21183] <... openat resumed>) = 3 [pid 21183] write(3, "1000", 4) = 4 [pid 21183] close(3) = 0 [pid 21183] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21183] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21184] set_robust_list(0x555556ba76e0, 24 [pid 21183] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21182] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21181] <... futex resumed>) = 1 [pid 21178] <... futex resumed>) = 0 [pid 21184] <... set_robust_list resumed>) = 0 [pid 21182] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21181] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21178] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21184] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21182] <... futex resumed>) = 1 [pid 21181] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21180] <... futex resumed>) = 0 [pid 21178] <... futex resumed>) = 0 [pid 21184] <... prctl resumed>) = 0 [pid 21183] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21182] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21181] write(5, NULL, 176 [pid 21180] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21178] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21184] setpgid(0, 0 [pid 21183] <... mprotect resumed>) = 0 [pid 21182] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21181] <... write resumed>) = -1 EFAULT (Bad address) [pid 21180] <... futex resumed>) = 0 [pid 21184] <... setpgid resumed>) = 0 [pid 21183] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21182] write(5, NULL, 176 [pid 21181] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21180] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21185 attached [pid 21184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21182] <... write resumed>) = -1 EFAULT (Bad address) [pid 21181] <... futex resumed>) = 1 [pid 21178] <... futex resumed>) = 0 [pid 21185] set_robust_list(0x7f61a3ef39e0, 24 [pid 21184] <... openat resumed>) = 3 [pid 21183] <... clone resumed>, parent_tid=[21185], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21185 [pid 21182] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21181] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21178] exit_group(0 [pid 21184] write(3, "1000", 4 [pid 21183] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21182] <... futex resumed>) = 1 [pid 21181] <... futex resumed>) = ? [pid 21180] <... futex resumed>) = 0 [pid 21185] <... set_robust_list resumed>) = 0 [pid 21178] <... exit_group resumed>) = ? [pid 21185] mkdir("./file0", 0777 [pid 21184] <... write resumed>) = 4 [pid 21183] <... futex resumed>) = 0 [pid 21182] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21181] +++ exited with 0 +++ [pid 21180] exit_group(0 [pid 21178] +++ exited with 0 +++ [pid 21184] close(3 [pid 21183] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21182] <... futex resumed>) = ? [pid 21180] <... exit_group resumed>) = ? [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21178, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21185] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21184] <... close resumed>) = 0 [pid 21182] +++ exited with 0 +++ [pid 21184] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21184] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21180] +++ exited with 0 +++ [pid 3604] <... openat resumed>) = 3 [pid 21185] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21184] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21180, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21185] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21184] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21185] <... futex resumed>) = 1 [pid 21184] <... mprotect resumed>) = 0 [pid 21183] <... futex resumed>) = 0 [pid 3604] close(3 [pid 21185] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21184] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21183] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 ./strace-static-x86_64: Process 21186 attached [pid 21185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21183] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21187 attached [pid 21186] set_robust_list(0x7f61a3ef39e0, 24 [pid 21185] pipe2( [pid 21184] <... clone resumed>, parent_tid=[21186], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21186 [pid 21183] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21186] <... set_robust_list resumed>) = 0 [pid 21185] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21184] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21187 [pid 21187] set_robust_list(0x555556ba76e0, 24 [pid 21184] <... futex resumed>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21185] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21184] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3601] <... openat resumed>) = 3 [pid 21185] <... futex resumed>) = 1 [pid 21183] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21185] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21183] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21187] <... set_robust_list resumed>) = 0 [pid 21186] mkdir("./file0", 0777 [pid 21185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21183] <... futex resumed>) = 0 [pid 3601] close(3 [pid 21187] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21186] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21185] dup(4 [pid 21183] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... close resumed>) = 0 [pid 21187] <... prctl resumed>) = 0 [pid 21186] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21185] <... dup resumed>) = 5 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21188 attached [pid 21187] setpgid(0, 0 [pid 21186] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21185] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21187] <... setpgid resumed>) = 0 [pid 21186] <... futex resumed>) = 1 [pid 21185] <... futex resumed>) = 1 [pid 21184] <... futex resumed>) = 0 [pid 21183] <... futex resumed>) = 0 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21188 [pid 21187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21186] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21185] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21184] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21183] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21188] set_robust_list(0x555556ba76e0, 24 [pid 21187] <... openat resumed>) = 3 [pid 21186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21185] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21184] <... futex resumed>) = 0 [pid 21183] <... futex resumed>) = 0 [pid 21187] write(3, "1000", 4 [pid 21186] pipe2( [pid 21185] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21184] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21183] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21187] <... write resumed>) = 4 [pid 21186] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21187] close(3) = 0 [pid 21187] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21187] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21187] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21186] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21187] <... mprotect resumed>) = 0 [pid 21186] <... futex resumed>) = 1 [pid 21184] <... futex resumed>) = 0 [pid 21187] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21184] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21186] dup(4) = 5 [pid 21184] <... futex resumed>) = 0 [pid 21187] <... clone resumed>, parent_tid=[21189], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21189 [pid 21186] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21184] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21187] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21186] <... futex resumed>) = 0 [pid 21184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21187] <... futex resumed>) = 0 [pid 21186] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21184] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21187] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21186] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21184] <... futex resumed>) = 0 [pid 21186] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21185] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21184] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21189 attached [pid 21189] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21189] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21185] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21188] <... set_robust_list resumed>) = 0 [pid 21186] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21189] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21185] <... futex resumed>) = 1 [pid 21183] <... futex resumed>) = 0 [pid 21189] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21186] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21185] write(5, NULL, 176 [pid 21188] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21183] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21189] <... futex resumed>) = 1 [pid 21188] <... prctl resumed>) = 0 [pid 21187] <... futex resumed>) = 0 [pid 21186] <... futex resumed>) = 1 [pid 21185] <... write resumed>) = -1 EFAULT (Bad address) [pid 21184] <... futex resumed>) = 0 [pid 21183] <... futex resumed>) = 0 [pid 21189] pipe2( [pid 21188] setpgid(0, 0 [pid 21187] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21186] write(5, NULL, 176 [pid 21185] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21184] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21183] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21189] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21188] <... setpgid resumed>) = 0 [pid 21187] <... futex resumed>) = 0 [pid 21186] <... write resumed>) = -1 EFAULT (Bad address) [pid 21185] <... futex resumed>) = 0 [pid 21184] <... futex resumed>) = 0 [pid 21183] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21189] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21187] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21186] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21185] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21184] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21183] exit_group(0 [pid 21189] <... futex resumed>) = 0 [pid 21188] <... openat resumed>) = 3 [pid 21187] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21186] <... futex resumed>) = 0 [pid 21185] <... futex resumed>) = ? [pid 21184] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21183] <... exit_group resumed>) = ? [pid 21189] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21188] write(3, "1000", 4 [pid 21187] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21186] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21185] +++ exited with 0 +++ [pid 21184] exit_group(0 [pid 21189] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21187] <... futex resumed>) = 0 [pid 21184] <... exit_group resumed>) = ? [pid 21183] +++ exited with 0 +++ [pid 21186] <... futex resumed>) = ? [pid 21188] <... write resumed>) = 4 [pid 21189] dup(4 [pid 21187] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21189] <... dup resumed>) = 5 [pid 21189] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21186] +++ exited with 0 +++ [pid 21188] close(3 [pid 21184] +++ exited with 0 +++ [pid 21189] <... futex resumed>) = 1 [pid 21188] <... close resumed>) = 0 [pid 21187] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21183, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21184, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21189] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21188] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21187] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 21189] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21188] <... futex resumed>) = 0 [pid 21187] <... futex resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 21189] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21188] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21187] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3606] close(3) = 0 [pid 21188] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21188] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21190 attached [pid 21188] <... mprotect resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21190] set_robust_list(0x555556ba76e0, 24 [pid 21188] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3607] <... openat resumed>) = 3 [pid 21190] <... set_robust_list resumed>) = 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21190] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21188] <... clone resumed>, parent_tid=[21191], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21191 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 21191 attached [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21190 [pid 21191] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21189] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21188] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 21190] <... prctl resumed>) = 0 [pid 21189] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21188] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 21190] setpgid(0, 0 [pid 21189] <... futex resumed>) = 1 [pid 21188] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21190] <... setpgid resumed>) = 0 [pid 21189] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21192 [pid 21190] <... openat resumed>) = 3 [pid 21190] write(3, "1000", 4) = 4 [pid 21190] close(3) = 0 [pid 21190] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21190] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21190] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21190] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21193], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21193 [pid 21190] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21190] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21193 attached [pid 21193] set_robust_list(0x7f61a3ef39e0, 24 [pid 21187] <... futex resumed>) = 0 [pid 21191] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21187] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21192 attached [pid 21191] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21189] <... futex resumed>) = 0 [pid 21187] <... futex resumed>) = 1 [pid 21193] <... set_robust_list resumed>) = 0 [pid 21191] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21189] write(5, NULL, 176 [pid 21187] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21191] <... futex resumed>) = 1 [pid 21189] <... write resumed>) = -1 EFAULT (Bad address) [pid 21188] <... futex resumed>) = 0 [pid 21191] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21189] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21188] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21189] <... futex resumed>) = 1 [pid 21188] <... futex resumed>) = 0 [pid 21187] <... futex resumed>) = 0 [pid 21192] set_robust_list(0x555556ba76e0, 24 [pid 21191] pipe2( [pid 21189] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21188] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21187] exit_group(0 [pid 21193] mkdir("./file0", 0777 [pid 21192] <... set_robust_list resumed>) = 0 [pid 21191] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21189] <... futex resumed>) = ? [pid 21187] <... exit_group resumed>) = ? [pid 21193] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21192] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21191] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21189] +++ exited with 0 +++ [pid 21193] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21192] <... prctl resumed>) = 0 [pid 21191] <... futex resumed>) = 1 [pid 21188] <... futex resumed>) = 0 [pid 21187] +++ exited with 0 +++ [pid 21193] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21192] setpgid(0, 0 [pid 21191] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21188] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21187, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21193] <... futex resumed>) = 1 [pid 21192] <... setpgid resumed>) = 0 [pid 21191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21190] <... futex resumed>) = 0 [pid 21188] <... futex resumed>) = 0 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 21191] dup(4 [pid 21190] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21188] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21193] pipe2( [pid 21192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21191] <... dup resumed>) = 5 [pid 21190] <... futex resumed>) = 0 [pid 3604] <... restart_syscall resumed>) = 0 [pid 21193] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21191] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21190] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21193] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21192] <... openat resumed>) = 3 [pid 21191] <... futex resumed>) = 1 [pid 21190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21188] <... futex resumed>) = 0 [pid 21193] <... futex resumed>) = 0 [pid 21192] write(3, "1000", 4 [pid 21191] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21190] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21188] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21193] dup(4 [pid 21192] <... write resumed>) = 4 [pid 21191] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21190] <... futex resumed>) = 0 [pid 21188] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21193] <... dup resumed>) = 5 [pid 21192] close(3 [pid 21191] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21190] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21188] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21193] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21192] <... close resumed>) = 0 [pid 21190] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3604] <... openat resumed>) = 3 [pid 21190] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21190] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 21194 [pid 21193] <... futex resumed>) = 1 [pid 21190] <... futex resumed>) = 0 [pid 21190] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=45000000}./strace-static-x86_64: Process 21194 attached [pid 21194] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21194] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21193] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21194] <... prctl resumed>) = 0 [pid 21194] setpgid(0, 0) = 0 [pid 21192] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21192] <... futex resumed>) = 0 [pid 21194] <... openat resumed>) = 3 [pid 21192] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21194] write(3, "1000", 4 [pid 21191] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21192] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21194] <... write resumed>) = 4 [pid 21192] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21194] close(3) = 0 [pid 21192] <... mprotect resumed>) = 0 [pid 21191] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21194] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21192] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21194] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21191] <... futex resumed>) = 1 [pid 21188] <... futex resumed>) = 0 [pid 21194] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21191] write(5, NULL, 176 [pid 21188] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21195 attached [pid 21194] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21192] <... clone resumed>, parent_tid=[21195], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21195 [pid 21191] <... write resumed>) = -1 EFAULT (Bad address) [pid 21188] <... futex resumed>) = 0 [pid 21194] <... mprotect resumed>) = 0 [pid 21192] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21191] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21188] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21194] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21188] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21192] <... futex resumed>) = 0 [pid 21191] <... futex resumed>) = 0 [pid 21192] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21188] exit_group(0 [pid 21194] <... clone resumed>, parent_tid=[21196], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21196 [pid 21188] <... exit_group resumed>) = ? [pid 21191] +++ exited with 0 +++ ./strace-static-x86_64: Process 21196 attached [pid 21195] set_robust_list(0x7f61a3ef39e0, 24 [pid 21194] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21193] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21196] set_robust_list(0x7f61a3ef39e0, 24 [pid 21195] <... set_robust_list resumed>) = 0 [pid 21193] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21196] <... set_robust_list resumed>) = 0 [pid 21195] mkdir("./file0", 0777 [pid 21193] <... futex resumed>) = 1 [pid 21188] +++ exited with 0 +++ [pid 21196] mkdir("./file0", 0777 [pid 21195] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21194] <... futex resumed>) = 0 [pid 21193] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21190] <... futex resumed>) = 0 [pid 21196] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21195] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21194] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21190] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21188, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21196] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21195] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21193] <... futex resumed>) = 0 [pid 21190] <... futex resumed>) = 1 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21196] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21195] <... futex resumed>) = 1 [pid 21193] write(5, NULL, 176 [pid 21192] <... futex resumed>) = 0 [pid 21190] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 21196] <... futex resumed>) = 1 [pid 21195] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21194] <... futex resumed>) = 0 [pid 21193] <... write resumed>) = -1 EFAULT (Bad address) [pid 21192] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21196] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21195] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21194] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21193] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21192] <... futex resumed>) = 0 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21196] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21195] pipe2( [pid 21194] <... futex resumed>) = 0 [pid 21193] <... futex resumed>) = 1 [pid 21192] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21190] <... futex resumed>) = 0 [pid 3601] close(3 [pid 21196] pipe2( [pid 21195] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21194] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21193] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21190] exit_group(0 [pid 3601] <... close resumed>) = 0 [pid 21196] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21195] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21193] <... futex resumed>) = ? [pid 21190] <... exit_group resumed>) = ? [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21196] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21195] <... futex resumed>) = 1 [pid 21193] +++ exited with 0 +++ [pid 21192] <... futex resumed>) = 0 [pid 21196] <... futex resumed>) = 1 [pid 21195] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21192] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21190] +++ exited with 0 +++ [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21197 ./strace-static-x86_64: Process 21197 attached [pid 21196] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21195] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21194] <... futex resumed>) = 0 [pid 21192] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21190, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21195] dup(4 [pid 21194] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21192] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21196] <... futex resumed>) = 0 [pid 21195] <... dup resumed>) = 5 [pid 21194] <... futex resumed>) = 1 [pid 21196] dup(4 [pid 21195] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21194] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21196] <... dup resumed>) = 5 [pid 21195] <... futex resumed>) = 1 [pid 21192] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21196] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21195] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21192] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21196] <... futex resumed>) = 1 [pid 21195] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21194] <... futex resumed>) = 0 [pid 21192] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 21196] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21195] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21194] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21192] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21197] set_robust_list(0x555556ba76e0, 24 [pid 21196] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21194] <... futex resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21197] <... set_robust_list resumed>) = 0 [pid 21196] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21194] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] close(3 [pid 21197] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3606] <... close resumed>) = 0 [pid 21197] <... prctl resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21197] setpgid(0, 0) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21198 [pid 21197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21197] write(3, "1000", 4) = 4 [pid 21197] close(3) = 0 [pid 21197] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21197] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21197] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21197] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21199], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21199 [pid 21197] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21197] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21199 attached [pid 21199] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21199] mkdir("./file0", 0777 [pid 21195] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21199] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21195] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21199] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21195] <... futex resumed>) = 1 [pid 21192] <... futex resumed>) = 0 [pid 21199] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21195] write(5, NULL, 176 [pid 21192] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21196] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21199] <... futex resumed>) = 1 [pid 21197] <... futex resumed>) = 0 [pid 21196] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21195] <... write resumed>) = -1 EFAULT (Bad address) [pid 21192] <... futex resumed>) = 0 [pid 21199] pipe2( [pid 21197] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21196] <... futex resumed>) = 1 [pid 21195] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21194] <... futex resumed>) = 0 [pid 21192] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21198 attached [pid 21199] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21197] <... futex resumed>) = 0 [pid 21196] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21195] <... futex resumed>) = 0 [pid 21194] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21192] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21199] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21198] set_robust_list(0x555556ba76e0, 24 [pid 21197] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21196] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21195] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21194] <... futex resumed>) = 0 [pid 21199] <... futex resumed>) = 0 [pid 21198] <... set_robust_list resumed>) = 0 [pid 21197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21196] write(5, NULL, 176 [pid 21194] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21192] exit_group(0 [pid 21199] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21198] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21197] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21196] <... write resumed>) = -1 EFAULT (Bad address) [pid 21195] <... futex resumed>) = ? [pid 21192] <... exit_group resumed>) = ? [pid 21199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21197] <... futex resumed>) = 0 [pid 21199] dup(4 [pid 21197] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21199] <... dup resumed>) = 5 [pid 21199] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21197] <... futex resumed>) = 0 [pid 21199] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21197] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21196] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21195] +++ exited with 0 +++ [pid 21199] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21197] <... futex resumed>) = 0 [pid 21192] +++ exited with 0 +++ [pid 21199] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21198] <... prctl resumed>) = 0 [pid 21197] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21196] <... futex resumed>) = 1 [pid 21194] <... futex resumed>) = 0 [pid 21198] setpgid(0, 0 [pid 21196] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21194] exit_group(0 [pid 21198] <... setpgid resumed>) = 0 [pid 21196] <... futex resumed>) = ? [pid 21194] <... exit_group resumed>) = ? [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21192, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21196] +++ exited with 0 +++ [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 21198] <... openat resumed>) = 3 [pid 21198] write(3, "1000", 4) = 4 [pid 21198] close(3 [pid 21194] +++ exited with 0 +++ [pid 21198] <... close resumed>) = 0 [pid 3607] <... restart_syscall resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21194, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 21198] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21198] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21198] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21198] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21200], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21200 [pid 21198] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21198] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21200 attached [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 21199] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3607] close(3) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21201 [pid 3604] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3604] close(3) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21199] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21202 [pid 21199] <... futex resumed>) = 1 [pid 21197] <... futex resumed>) = 0 [pid 21199] write(5, NULL, 176 [pid 21197] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21199] <... write resumed>) = -1 EFAULT (Bad address) [pid 21197] <... futex resumed>) = 0 [pid 21199] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21197] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21199] <... futex resumed>) = 0 [pid 21197] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21199] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21197] exit_group(0 [pid 21200] set_robust_list(0x7f61a3ef39e0, 24 [pid 21199] <... futex resumed>) = ? [pid 21197] <... exit_group resumed>) = ? [pid 21200] <... set_robust_list resumed>) = 0 [pid 21199] +++ exited with 0 +++ [pid 21200] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21200] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21197] +++ exited with 0 +++ [pid 21200] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21200] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21198] <... futex resumed>) = 0 [pid 21198] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21202 attached [pid 21200] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21198] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21197, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21202] set_robust_list(0x555556ba76e0, 24 [pid 21200] pipe2( [pid 21198] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21202] <... set_robust_list resumed>) = 0 [pid 21200] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21202] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21200] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... openat resumed>) = 3 [pid 21202] <... prctl resumed>) = 0 [pid 21200] <... futex resumed>) = 1 [pid 21198] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 21201 attached [pid 21202] setpgid(0, 0 [pid 21200] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21198] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21202] <... setpgid resumed>) = 0 [pid 21201] set_robust_list(0x555556ba76e0, 24 [pid 21200] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21198] <... futex resumed>) = 0 [pid 3601] close(3 [pid 21202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21201] <... set_robust_list resumed>) = 0 [pid 21200] dup(4 [pid 21198] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... close resumed>) = 0 [pid 21202] <... openat resumed>) = 3 [pid 21201] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21200] <... dup resumed>) = 5 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21202] write(3, "1000", 4 [pid 21201] <... prctl resumed>) = 0 [pid 21200] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21202] <... write resumed>) = 4 [pid 21201] setpgid(0, 0 [pid 21200] <... futex resumed>) = 1 [pid 21198] <... futex resumed>) = 0 [pid 21202] close(3 [pid 21201] <... setpgid resumed>) = 0 [pid 21200] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21198] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21203 [pid 21202] <... close resumed>) = 0 [pid 21201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21200] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21198] <... futex resumed>) = 0 [pid 21202] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21201] <... openat resumed>) = 3 [pid 21200] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21198] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21202] <... futex resumed>) = 0 [pid 21201] write(3, "1000", 4 [pid 21202] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21201] <... write resumed>) = 4 ./strace-static-x86_64: Process 21203 attached [pid 21202] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21201] close(3 [pid 21203] set_robust_list(0x555556ba76e0, 24 [pid 21202] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21201] <... close resumed>) = 0 [pid 21203] <... set_robust_list resumed>) = 0 [pid 21202] <... mprotect resumed>) = 0 [pid 21201] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21203] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21202] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21201] <... futex resumed>) = 0 [pid 21203] <... prctl resumed>) = 0 [pid 21201] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21203] setpgid(0, 0 [pid 21202] <... clone resumed>, parent_tid=[21204], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21204 [pid 21201] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21203] <... setpgid resumed>) = 0 [pid 21202] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21201] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21202] <... futex resumed>) = 0 [pid 21201] <... mprotect resumed>) = 0 [pid 21203] <... openat resumed>) = 3 [pid 21202] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21201] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21203] write(3, "1000", 4) = 4 [pid 21201] <... clone resumed>, parent_tid=[21205], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21205 [pid 21203] close(3 [pid 21201] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21204 attached [pid 21203] <... close resumed>) = 0 [pid 21201] <... futex resumed>) = 0 [pid 21204] set_robust_list(0x7f61a3ef39e0, 24 [pid 21203] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21201] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21204] <... set_robust_list resumed>) = 0 [pid 21203] <... futex resumed>) = 0 [pid 21204] mkdir("./file0", 0777 [pid 21203] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21204] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21203] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21204] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21203] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21200] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21204] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21203] <... mprotect resumed>) = 0 [pid 21200] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21204] <... futex resumed>) = 1 [pid 21203] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21202] <... futex resumed>) = 0 [pid 21200] <... futex resumed>) = 1 [pid 21198] <... futex resumed>) = 0 [pid 21204] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21202] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21198] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21200] write(5, NULL, 176 [pid 21204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21203] <... clone resumed>, parent_tid=[21206], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21206 [pid 21202] <... futex resumed>) = 0 [pid 21198] <... futex resumed>) = 0 [pid 21204] pipe2( [pid 21203] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21202] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21200] <... write resumed>) = -1 EFAULT (Bad address) [pid 21198] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21204] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21203] <... futex resumed>) = 0 [pid 21200] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21204] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21203] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21200] <... futex resumed>) = 1 [pid 21198] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21206 attached [pid 21204] <... futex resumed>) = 1 [pid 21202] <... futex resumed>) = 0 [pid 21200] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21198] exit_group(0 [pid 21206] set_robust_list(0x7f61a3ef39e0, 24 [pid 21204] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21202] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21198] <... exit_group resumed>) = ? [pid 21200] <... futex resumed>) = ? [pid 21206] <... set_robust_list resumed>) = 0 [pid 21204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21202] <... futex resumed>) = 0 [pid 21206] mkdir("./file0", 0777 [pid 21204] dup(4 [pid 21202] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21206] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21204] <... dup resumed>) = 5 [pid 21206] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21204] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21200] +++ exited with 0 +++ [pid 21198] +++ exited with 0 +++ ./strace-static-x86_64: Process 21205 attached [pid 21206] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21204] <... futex resumed>) = 1 [pid 21202] <... futex resumed>) = 0 [pid 21206] <... futex resumed>) = 1 [pid 21204] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21203] <... futex resumed>) = 0 [pid 21202] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21205] set_robust_list(0x7f61a3ef39e0, 24 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21198, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21206] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21203] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21202] <... futex resumed>) = 0 [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 21206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21205] <... set_robust_list resumed>) = 0 [pid 21204] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21203] <... futex resumed>) = 0 [pid 21202] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... restart_syscall resumed>) = 0 [pid 21206] pipe2( [pid 21205] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21203] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21206] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21205] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21206] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21205] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21206] <... futex resumed>) = 1 [pid 21205] <... futex resumed>) = 1 [pid 21203] <... futex resumed>) = 0 [pid 21201] <... futex resumed>) = 0 [pid 21206] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21205] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21203] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21201] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 21206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21205] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21204] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21203] <... futex resumed>) = 0 [pid 21201] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21206] dup(4 [pid 21205] pipe2( [pid 21204] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21203] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21201] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21206] <... dup resumed>) = 5 [pid 21205] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21204] <... futex resumed>) = 1 [pid 21202] <... futex resumed>) = 0 [pid 3606] close(3 [pid 21206] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21205] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21204] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21202] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 21206] <... futex resumed>) = 1 [pid 21204] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21203] <... futex resumed>) = 0 [pid 21202] <... futex resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21206] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21204] write(5, NULL, 176 [pid 21203] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21202] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21205] <... futex resumed>) = 1 [pid 21204] <... write resumed>) = -1 EFAULT (Bad address) [pid 21203] <... futex resumed>) = 0 [pid 21201] <... futex resumed>) = 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21207 [pid 21206] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21205] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21204] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21203] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21201] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21205] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21204] <... futex resumed>) = 1 [pid 21202] <... futex resumed>) = 0 [pid 21201] <... futex resumed>) = 0 [pid 21205] dup(4 [pid 21204] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21202] exit_group(0 [pid 21201] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21205] <... dup resumed>) = 5 [pid 21204] <... futex resumed>) = ? [pid 21202] <... exit_group resumed>) = ? [pid 21206] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21205] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21204] +++ exited with 0 +++ [pid 21202] +++ exited with 0 +++ [pid 21206] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21205] <... futex resumed>) = 1 [pid 21201] <... futex resumed>) = 0 [pid 21206] <... futex resumed>) = 1 [pid 21205] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21203] <... futex resumed>) = 0 [pid 21201] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21202, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21206] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21205] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21203] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21201] <... futex resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21206] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21205] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21203] <... futex resumed>) = 0 [pid 21201] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] <... openat resumed>) = 3 [pid 21206] write(5, NULL, 176 [pid 21203] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21206] <... write resumed>) = -1 EFAULT (Bad address) [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21206] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] close(3 [pid 21206] <... futex resumed>) = 1 [pid 21203] <... futex resumed>) = 0 [pid 3604] <... close resumed>) = 0 [pid 21206] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21203] exit_group(0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21206] <... futex resumed>) = ? [pid 21203] <... exit_group resumed>) = ? [pid 21206] +++ exited with 0 +++ [pid 21203] +++ exited with 0 +++ [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21208 ./strace-static-x86_64: Process 21208 attached [pid 21208] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21208] setpgid(0, 0) = 0 [pid 21208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21208] write(3, "1000", 4) = 4 [pid 21208] close(3) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21203, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21208] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21208] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 21207 attached [pid 21208] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21207] set_robust_list(0x555556ba76e0, 24 [pid 3601] <... openat resumed>) = 3 [pid 21208] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21207] <... set_robust_list resumed>) = 0 [pid 21207] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 21209 attached [pid 21208] <... clone resumed>, parent_tid=[21209], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21209 [pid 21207] <... prctl resumed>) = 0 [pid 21205] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21209] set_robust_list(0x7f61a3ef39e0, 24 [pid 21208] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21207] setpgid(0, 0 [pid 21205] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21209] <... set_robust_list resumed>) = 0 [pid 21208] <... futex resumed>) = 0 [pid 21207] <... setpgid resumed>) = 0 [pid 21205] <... futex resumed>) = 1 [pid 21201] <... futex resumed>) = 0 [pid 3601] close(3 [pid 21209] mkdir("./file0", 0777 [pid 21208] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21205] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21201] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 21209] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21207] <... openat resumed>) = 3 [pid 21205] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21201] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21209] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21207] write(3, "1000", 4 [pid 21205] write(5, NULL, 176 [pid 21201] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21209] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21207] <... write resumed>) = 4 [pid 21205] <... write resumed>) = -1 EFAULT (Bad address) [pid 21209] <... futex resumed>) = 1 [pid 21208] <... futex resumed>) = 0 [pid 21207] close(3 [pid 21205] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21210 [pid 21209] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21208] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21207] <... close resumed>) = 0 [pid 21205] <... futex resumed>) = 1 [pid 21201] <... futex resumed>) = 0 [pid 21209] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21208] <... futex resumed>) = 0 [pid 21207] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21205] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21201] exit_group(0 [pid 21209] pipe2( [pid 21208] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21207] <... futex resumed>) = 0 [pid 21205] <... futex resumed>) = ? [pid 21201] <... exit_group resumed>) = ? [pid 21209] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21207] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21205] +++ exited with 0 +++ [pid 21209] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21208] <... futex resumed>) = 0 [pid 21209] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21208] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21209] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21208] <... futex resumed>) = 0 [pid 21209] dup(4 [pid 21208] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21201] +++ exited with 0 +++ [pid 21209] <... dup resumed>) = 5 [pid 21207] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21209] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21207] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21201, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21209] <... futex resumed>) = 1 [pid 21208] <... futex resumed>) = 0 [pid 21207] <... mprotect resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21209] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21208] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21207] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 21210 attached [pid 21209] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21208] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 21210] set_robust_list(0x555556ba76e0, 24 [pid 21209] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21208] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 21211 attached [pid 21210] <... set_robust_list resumed>) = 0 [pid 21207] <... clone resumed>, parent_tid=[21211], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21211 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21211] set_robust_list(0x7f61a3ef39e0, 24 [pid 21210] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21207] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] close(3 [pid 21211] <... set_robust_list resumed>) = 0 [pid 21210] <... prctl resumed>) = 0 [pid 21207] <... futex resumed>) = 0 [pid 3607] <... close resumed>) = 0 [pid 21211] mkdir("./file0", 0777 [pid 21210] setpgid(0, 0 [pid 21207] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21211] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21210] <... setpgid resumed>) = 0 [pid 21211] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21212 [pid 21211] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21210] <... openat resumed>) = 3 [pid 21211] <... futex resumed>) = 1 [pid 21210] write(3, "1000", 4 [pid 21207] <... futex resumed>) = 0 [pid 21211] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21210] <... write resumed>) = 4 [pid 21207] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21210] close(3 [pid 21207] <... futex resumed>) = 0 [pid 21211] pipe2( [pid 21210] <... close resumed>) = 0 [pid 21207] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21211] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21210] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21211] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21210] <... futex resumed>) = 0 [pid 21211] <... futex resumed>) = 1 [pid 21210] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21207] <... futex resumed>) = 0 [pid 21211] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21210] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21207] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21210] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21207] <... futex resumed>) = 0 [pid 21211] dup(4 [pid 21210] <... mprotect resumed>) = 0 [pid 21209] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21207] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21211] <... dup resumed>) = 5 [pid 21210] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21209] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21212 attached [pid 21211] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21209] <... futex resumed>) = 1 [pid 21208] <... futex resumed>) = 0 [pid 21211] <... futex resumed>) = 1 [pid 21210] <... clone resumed>, parent_tid=[21213], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21213 [pid 21209] write(5, NULL, 176 [pid 21208] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21207] <... futex resumed>) = 0 [pid 21212] set_robust_list(0x555556ba76e0, 24 [pid 21211] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21210] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21207] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21210] <... futex resumed>) = 0 [pid 21207] <... futex resumed>) = 0 [pid 21211] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21210] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21207] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21213 attached [pid 21212] <... set_robust_list resumed>) = 0 [pid 21209] <... write resumed>) = -1 EFAULT (Bad address) [pid 21208] <... futex resumed>) = 0 [pid 21213] set_robust_list(0x7f61a3ef39e0, 24 [pid 21212] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21209] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21208] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21213] <... set_robust_list resumed>) = 0 [pid 21212] <... prctl resumed>) = 0 [pid 21211] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21209] <... futex resumed>) = 0 [pid 21208] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21213] mkdir("./file0", 0777 [pid 21212] setpgid(0, 0 [pid 21211] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21209] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21208] exit_group(0 [pid 21213] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21212] <... setpgid resumed>) = 0 [pid 21211] <... futex resumed>) = 1 [pid 21209] <... futex resumed>) = ? [pid 21208] <... exit_group resumed>) = ? [pid 21207] <... futex resumed>) = 0 [pid 21212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21211] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21209] +++ exited with 0 +++ [pid 21207] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21211] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21207] <... futex resumed>) = 0 [pid 21211] write(5, NULL, 176 [pid 21207] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21211] <... write resumed>) = -1 EFAULT (Bad address) [pid 21208] +++ exited with 0 +++ [pid 21212] <... openat resumed>) = 3 [pid 21211] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21208, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 21213] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21212] write(3, "1000", 4 [pid 21211] <... futex resumed>) = 1 [pid 21207] <... futex resumed>) = 0 [pid 21213] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21212] <... write resumed>) = 4 [pid 21211] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21207] exit_group(0 [pid 21213] <... futex resumed>) = 1 [pid 21212] close(3 [pid 21211] <... futex resumed>) = ? [pid 21210] <... futex resumed>) = 0 [pid 21207] <... exit_group resumed>) = ? [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21213] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21212] <... close resumed>) = 0 [pid 21211] +++ exited with 0 +++ [pid 21210] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21210] <... futex resumed>) = 0 [pid 21207] +++ exited with 0 +++ [pid 3604] <... openat resumed>) = 3 [pid 21213] pipe2( [pid 21212] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21210] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21207, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21213] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21212] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21213] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21212] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3604] close(3 [pid 21213] <... futex resumed>) = 1 [pid 21212] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21210] <... futex resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] <... close resumed>) = 0 [pid 21213] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21212] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21210] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... openat resumed>) = 3 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21212] <... mprotect resumed>) = 0 [pid 21210] <... futex resumed>) = 0 [pid 3606] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 21214 attached [pid 21213] dup(4 [pid 21212] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21210] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21214] set_robust_list(0x555556ba76e0, 24 [pid 21213] <... dup resumed>) = 5 [pid 3606] close(3 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21214 [pid 21214] <... set_robust_list resumed>) = 0 [pid 21213] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21212] <... clone resumed>, parent_tid=[21215], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21215 [pid 3606] <... close resumed>) = 0 [pid 21214] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21214] <... prctl resumed>) = 0 [pid 21214] setpgid(0, 0 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21216 [pid 21214] <... setpgid resumed>) = 0 [pid 21214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21214] write(3, "1000", 4) = 4 [pid 21214] close(3) = 0 [pid 21214] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21214] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21214] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 21215 attached ) = 0 [pid 21215] set_robust_list(0x7f61a3ef39e0, 24 [pid 21214] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 21216 attached [pid 21215] <... set_robust_list resumed>) = 0 [pid 21216] set_robust_list(0x555556ba76e0, 24 [pid 21215] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21214] <... clone resumed>, parent_tid=[21217], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21217 [pid 21216] <... set_robust_list resumed>) = 0 [pid 21214] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21216] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21214] <... futex resumed>) = 0 [pid 21216] <... prctl resumed>) = 0 [pid 21214] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21216] setpgid(0, 0) = 0 [pid 21216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21216] write(3, "1000", 4 [pid 21213] <... futex resumed>) = 1 [pid 21212] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21210] <... futex resumed>) = 0 [pid 21216] <... write resumed>) = 4 [pid 21215] <... futex resumed>) = 0 [pid 21213] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21212] <... futex resumed>) = 1 [pid 21210] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21216] close(3 [pid 21215] mkdir("./file0", 0777 [pid 21213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21212] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21210] <... futex resumed>) = 0 [pid 21216] <... close resumed>) = 0 [pid 21215] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21213] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21210] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21216] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21215] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21216] <... futex resumed>) = 0 [pid 21215] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21216] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21215] <... futex resumed>) = 1 [pid 21216] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21215] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21216] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21212] <... futex resumed>) = 0 [pid 21216] <... mprotect resumed>) = 0 [pid 21216] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21212] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21216] <... clone resumed>, parent_tid=[21218], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21218 [pid 21215] <... futex resumed>) = 0 [pid 21212] <... futex resumed>) = 1 [pid 21216] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21215] pipe2( [pid 21212] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21216] <... futex resumed>) = 0 [pid 21215] <... pipe2 resumed>[3, 4], 0) = 0 ./strace-static-x86_64: Process 21217 attached [pid 21216] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21215] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21212] <... futex resumed>) = 0 [pid 21217] set_robust_list(0x7f61a3ef39e0, 24 [pid 21215] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21212] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21215] <... futex resumed>) = 0 [pid 21212] <... futex resumed>) = 1 [pid 21215] dup(4 [pid 21212] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21218 attached [pid 21215] <... dup resumed>) = 5 [pid 21218] set_robust_list(0x7f61a3ef39e0, 24 [pid 21215] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21218] <... set_robust_list resumed>) = 0 [pid 21217] <... set_robust_list resumed>) = 0 [pid 21215] <... futex resumed>) = 1 [pid 21213] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21212] <... futex resumed>) = 0 [pid 21218] mkdir("./file0", 0777 [pid 21215] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21213] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21212] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21218] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21217] mkdir("./file0", 0777 [pid 21215] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21213] <... futex resumed>) = 1 [pid 21212] <... futex resumed>) = 0 [pid 21210] <... futex resumed>) = 0 [pid 21218] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21217] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21215] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21213] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21212] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21210] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21218] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21217] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21213] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21210] <... futex resumed>) = 0 [pid 21218] <... futex resumed>) = 1 [pid 21216] <... futex resumed>) = 0 [pid 21213] write(5, NULL, 176 [pid 21210] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21217] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21218] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21217] <... futex resumed>) = 1 [pid 21216] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21214] <... futex resumed>) = 0 [pid 21213] <... write resumed>) = -1 EFAULT (Bad address) [pid 21218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21217] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21216] <... futex resumed>) = 0 [pid 21214] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21213] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21218] pipe2( [pid 21217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21216] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21214] <... futex resumed>) = 0 [pid 21213] <... futex resumed>) = 1 [pid 21210] <... futex resumed>) = 0 [pid 21215] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21218] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21217] pipe2( [pid 21215] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21214] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21213] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21210] exit_group(0 [pid 21218] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21217] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21215] <... futex resumed>) = 1 [pid 21213] <... futex resumed>) = ? [pid 21212] <... futex resumed>) = 0 [pid 21210] <... exit_group resumed>) = ? [pid 21218] <... futex resumed>) = 1 [pid 21217] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21216] <... futex resumed>) = 0 [pid 21215] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21213] +++ exited with 0 +++ [pid 21212] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21217] <... futex resumed>) = 1 [pid 21216] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21212] <... futex resumed>) = 0 [pid 21215] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21218] dup(4 [pid 21214] <... futex resumed>) = 0 [pid 21210] +++ exited with 0 +++ [pid 21218] <... dup resumed>) = 5 [pid 21217] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21216] <... futex resumed>) = 0 [pid 21215] write(5, NULL, 176 [pid 21214] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21212] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21218] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21216] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21215] <... write resumed>) = -1 EFAULT (Bad address) [pid 21214] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21210, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21218] <... futex resumed>) = 0 [pid 21217] dup(4 [pid 21216] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21215] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21214] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 21218] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21217] <... dup resumed>) = 5 [pid 21216] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21215] <... futex resumed>) = 1 [pid 21212] <... futex resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 21218] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21217] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21216] <... futex resumed>) = 0 [pid 21215] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21212] exit_group(0 [pid 21218] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21217] <... futex resumed>) = 1 [pid 21216] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21215] <... futex resumed>) = ? [pid 21214] <... futex resumed>) = 0 [pid 21212] <... exit_group resumed>) = ? [pid 21217] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21214] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21214] <... futex resumed>) = 0 [pid 3601] <... openat resumed>) = 3 [pid 21217] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21214] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21215] +++ exited with 0 +++ [pid 21212] +++ exited with 0 +++ [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21212, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] close(3) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 21219 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR./strace-static-x86_64: Process 21219 attached ) = 3 [pid 21219] set_robust_list(0x555556ba76e0, 24 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21218] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21217] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21219] <... set_robust_list resumed>) = 0 [pid 21218] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21217] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21219] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21218] <... futex resumed>) = 1 [pid 21217] <... futex resumed>) = 1 [pid 21216] <... futex resumed>) = 0 [pid 21214] <... futex resumed>) = 0 [pid 3607] close(3 [pid 21219] <... prctl resumed>) = 0 [pid 21218] write(5, NULL, 176 [pid 21217] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21216] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21214] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 21218] <... write resumed>) = -1 EFAULT (Bad address) [pid 21217] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21216] <... futex resumed>) = 0 [pid 21214] <... futex resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21219] setpgid(0, 0 [pid 21218] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21217] write(5, NULL, 176 [pid 21216] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21214] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21219] <... setpgid resumed>) = 0 [pid 21218] <... futex resumed>) = 0 [pid 21217] <... write resumed>) = -1 EFAULT (Bad address) [pid 21216] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21220 [pid 21218] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21216] exit_group(0 [pid 21218] <... futex resumed>) = ? [pid 21216] <... exit_group resumed>) = ? [pid 21219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21218] +++ exited with 0 +++ [pid 21217] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21216] +++ exited with 0 +++ [pid 21219] <... openat resumed>) = 3 [pid 21217] <... futex resumed>) = 1 [pid 21214] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21216, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21219] write(3, "1000", 4 [pid 21217] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21214] exit_group(0 [pid 3606] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 21220 attached [pid 21219] <... write resumed>) = 4 [pid 21217] <... futex resumed>) = ? [pid 21214] <... exit_group resumed>) = ? [pid 3606] <... restart_syscall resumed>) = 0 [pid 21220] set_robust_list(0x555556ba76e0, 24 [pid 21219] close(3 [pid 21217] +++ exited with 0 +++ [pid 21220] <... set_robust_list resumed>) = 0 [pid 21219] <... close resumed>) = 0 [pid 21214] +++ exited with 0 +++ [pid 21220] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21219] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21214, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21220] <... prctl resumed>) = 0 [pid 21219] <... futex resumed>) = 0 [pid 3606] <... openat resumed>) = 3 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 21220] setpgid(0, 0 [pid 21219] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21220] <... setpgid resumed>) = 0 [pid 21219] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3604] <... restart_syscall resumed>) = 0 [pid 21220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21219] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21220] <... openat resumed>) = 3 [pid 21219] <... mprotect resumed>) = 0 [pid 3606] close(3 [pid 21220] write(3, "1000", 4 [pid 21219] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3606] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21219] <... clone resumed>, parent_tid=[21221], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21221 [pid 3604] <... openat resumed>) = 3 [pid 21220] <... write resumed>) = 4 [pid 21219] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21222 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21220] close(3 [pid 21219] <... futex resumed>) = 0 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21220] <... close resumed>) = 0 [pid 21219] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] close(3 [pid 21220] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... close resumed>) = 0 [pid 21220] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21220] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0./strace-static-x86_64: Process 21222 attached ./strace-static-x86_64: Process 21221 attached ) = 0x7f61a3ed3000 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21223 [pid 21222] set_robust_list(0x555556ba76e0, 24 [pid 21221] set_robust_list(0x7f61a3ef39e0, 24 [pid 21220] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21222] <... set_robust_list resumed>) = 0 [pid 21221] <... set_robust_list resumed>) = 0 [pid 21222] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21221] mkdir("./file0", 0777 [pid 21222] <... prctl resumed>) = 0 [pid 21221] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21222] setpgid(0, 0 [pid 21221] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21222] <... setpgid resumed>) = 0 [pid 21221] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21223 attached [pid 21222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21221] <... futex resumed>) = 1 [pid 21220] <... mprotect resumed>) = 0 [pid 21219] <... futex resumed>) = 0 [pid 21223] set_robust_list(0x555556ba76e0, 24 [pid 21222] <... openat resumed>) = 3 [pid 21221] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21220] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21219] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21223] <... set_robust_list resumed>) = 0 [pid 21222] write(3, "1000", 4 [pid 21221] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21219] <... futex resumed>) = 0 [pid 21222] <... write resumed>) = 4 [pid 21221] pipe2( [pid 21220] <... clone resumed>, parent_tid=[21224], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21224 [pid 21219] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21223] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21222] close(3 [pid 21221] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21220] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21222] <... close resumed>) = 0 [pid 21221] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21223] <... prctl resumed>) = 0 [pid 21222] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21221] <... futex resumed>) = 1 [pid 21220] <... futex resumed>) = 0 [pid 21219] <... futex resumed>) = 0 [pid 21223] setpgid(0, 0 [pid 21222] <... futex resumed>) = 0 [pid 21221] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21220] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21219] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21224 attached [pid 21223] <... setpgid resumed>) = 0 [pid 21222] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21221] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21219] <... futex resumed>) = 0 [pid 21224] set_robust_list(0x7f61a3ef39e0, 24 [pid 21223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21222] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21221] dup(4 [pid 21219] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21224] <... set_robust_list resumed>) = 0 [pid 21223] <... openat resumed>) = 3 [pid 21222] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21221] <... dup resumed>) = 5 [pid 21224] mkdir("./file0", 0777 [pid 21223] write(3, "1000", 4 [pid 21222] <... mprotect resumed>) = 0 [pid 21221] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21224] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21223] <... write resumed>) = 4 [pid 21222] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21221] <... futex resumed>) = 1 [pid 21219] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21225 attached [pid 21224] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21223] close(3 [pid 21221] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21219] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21225] set_robust_list(0x7f61a3ef39e0, 24 [pid 21224] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21223] <... close resumed>) = 0 [pid 21222] <... clone resumed>, parent_tid=[21225], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21225 [pid 21221] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21225] <... set_robust_list resumed>) = 0 [pid 21224] <... futex resumed>) = 1 [pid 21223] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21222] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21221] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21220] <... futex resumed>) = 0 [pid 21219] <... futex resumed>) = 0 [pid 21225] mkdir("./file0", 0777 [pid 21224] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21223] <... futex resumed>) = 0 [pid 21222] <... futex resumed>) = 0 [pid 21220] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21219] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21225] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21224] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21223] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21222] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21220] <... futex resumed>) = 0 [pid 21224] pipe2( [pid 21223] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21220] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21225] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21224] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21223] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21221] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21225] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21224] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21223] <... mprotect resumed>) = 0 [pid 21221] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21225] <... futex resumed>) = 1 [pid 21224] <... futex resumed>) = 1 [pid 21222] <... futex resumed>) = 0 [pid 21221] <... futex resumed>) = 1 [pid 21220] <... futex resumed>) = 0 [pid 21223] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21225] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21224] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21222] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21221] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21220] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21219] <... futex resumed>) = 0 [pid 21225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21224] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21222] <... futex resumed>) = 0 [pid 21220] <... futex resumed>) = 0 [pid 21219] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21223] <... clone resumed>, parent_tid=[21226], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21226 ./strace-static-x86_64: Process 21226 attached [pid 21225] pipe2( [pid 21224] dup(4 [pid 21223] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21222] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21221] <... futex resumed>) = 0 [pid 21220] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21219] <... futex resumed>) = 1 [pid 21225] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21224] <... dup resumed>) = 5 [pid 21223] <... futex resumed>) = 0 [pid 21221] write(5, NULL, 176 [pid 21219] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21225] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21224] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21223] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21221] <... write resumed>) = -1 EFAULT (Bad address) [pid 21225] <... futex resumed>) = 1 [pid 21224] <... futex resumed>) = 1 [pid 21222] <... futex resumed>) = 0 [pid 21221] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21220] <... futex resumed>) = 0 [pid 21225] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21224] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21222] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21221] <... futex resumed>) = 1 [pid 21220] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21219] <... futex resumed>) = 0 [pid 21226] set_robust_list(0x7f61a3ef39e0, 24 [pid 21225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21224] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21222] <... futex resumed>) = 0 [pid 21221] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21220] <... futex resumed>) = 0 [pid 21219] exit_group(0 [pid 21226] <... set_robust_list resumed>) = 0 [pid 21225] dup(4 [pid 21224] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21222] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21221] <... futex resumed>) = ? [pid 21220] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21219] <... exit_group resumed>) = ? [pid 21226] mkdir("./file0", 0777 [pid 21225] <... dup resumed>) = 5 [pid 21221] +++ exited with 0 +++ [pid 21219] +++ exited with 0 +++ [pid 21226] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21225] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21226] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21225] <... futex resumed>) = 1 [pid 21222] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21219, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21226] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21225] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21222] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21226] <... futex resumed>) = 1 [pid 21225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21224] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21223] <... futex resumed>) = 0 [pid 21222] <... futex resumed>) = 0 [pid 21226] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21225] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21224] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21223] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21222] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... openat resumed>) = 3 [pid 21226] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21223] <... futex resumed>) = 0 [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21226] pipe2( [pid 21223] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21226] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21224] <... futex resumed>) = 1 [pid 21220] <... futex resumed>) = 0 [pid 3601] close(3 [pid 21226] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21220] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 21226] <... futex resumed>) = 1 [pid 21224] write(5, NULL, 176 [pid 21223] <... futex resumed>) = 0 [pid 21220] <... futex resumed>) = 0 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21226] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21225] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21224] <... write resumed>) = -1 EFAULT (Bad address) [pid 21223] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21220] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21226] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21225] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21224] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21223] <... futex resumed>) = 0 [pid 21220] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21227 [pid 21226] dup(4 [pid 21225] <... futex resumed>) = 1 [pid 21224] <... futex resumed>) = 0 [pid 21223] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21222] <... futex resumed>) = 0 [pid 21220] exit_group(0 [pid 21226] <... dup resumed>) = 5 [pid 21225] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21222] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21220] <... exit_group resumed>) = ? [pid 21226] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21225] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21224] +++ exited with 0 +++ [pid 21222] <... futex resumed>) = 0 [pid 21226] <... futex resumed>) = 1 [pid 21223] <... futex resumed>) = 0 [pid 21226] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21223] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21226] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21223] <... futex resumed>) = 0 [pid 21226] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21223] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21220] +++ exited with 0 +++ ./strace-static-x86_64: Process 21227 attached [pid 21225] write(5, NULL, 176 [pid 21222] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21227] set_robust_list(0x555556ba76e0, 24 [pid 21225] <... write resumed>) = -1 EFAULT (Bad address) [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21220, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21227] <... set_robust_list resumed>) = 0 [pid 21225] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 21227] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21225] <... futex resumed>) = 1 [pid 21222] <... futex resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 21227] <... prctl resumed>) = 0 [pid 21226] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21225] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21222] exit_group(0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 21227] setpgid(0, 0 [pid 21225] <... futex resumed>) = ? [pid 21222] <... exit_group resumed>) = ? [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21226] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21227] <... setpgid resumed>) = 0 [pid 21226] <... futex resumed>) = 1 [pid 21225] +++ exited with 0 +++ [pid 21223] <... futex resumed>) = 0 [pid 21222] +++ exited with 0 +++ [pid 3607] close(3 [pid 21227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21226] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21223] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... close resumed>) = 0 [pid 21226] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21223] <... futex resumed>) = 0 [pid 21226] write(5, NULL, 176 [pid 21223] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21226] <... write resumed>) = -1 EFAULT (Bad address) [pid 21226] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21223] <... futex resumed>) = 0 [pid 21226] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21223] exit_group(0 [pid 21226] <... futex resumed>) = ? [pid 21223] <... exit_group resumed>) = ? [pid 21226] +++ exited with 0 +++ [pid 21223] +++ exited with 0 +++ [pid 21227] <... openat resumed>) = 3 [pid 21227] write(3, "1000", 4) = 4 [pid 21227] close(3) = 0 [pid 21227] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21227] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21227] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21227] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21228], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21228 [pid 21227] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21227] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21222, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21229 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21223, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 21229 attached ./strace-static-x86_64: Process 21228 attached [pid 3606] <... openat resumed>) = 3 [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 21229] set_robust_list(0x555556ba76e0, 24 [pid 21228] set_robust_list(0x7f61a3ef39e0, 24 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3604] <... restart_syscall resumed>) = 0 [pid 21229] <... set_robust_list resumed>) = 0 [pid 21228] <... set_robust_list resumed>) = 0 [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21229] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21228] mkdir("./file0", 0777 [pid 3606] close(3 [pid 21229] <... prctl resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21230 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) ./strace-static-x86_64: Process 21230 attached [pid 3604] close(3) = 0 [pid 21229] setpgid(0, 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21230] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21229] <... setpgid resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21231 [pid 21230] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21229] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21228] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21230] <... prctl resumed>) = 0 [pid 21230] setpgid(0, 0 [pid 21229] <... openat resumed>) = 3 [pid 21228] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21230] <... setpgid resumed>) = 0 [pid 21230] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21229] write(3, "1000", 4 [pid 21228] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21231 attached [pid 21230] <... openat resumed>) = 3 [pid 21229] <... write resumed>) = 4 [pid 21228] <... futex resumed>) = 1 [pid 21227] <... futex resumed>) = 0 [pid 21231] set_robust_list(0x555556ba76e0, 24 [pid 21230] write(3, "1000", 4 [pid 21229] close(3 [pid 21228] pipe2( [pid 21227] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21231] <... set_robust_list resumed>) = 0 [pid 21230] <... write resumed>) = 4 [pid 21229] <... close resumed>) = 0 [pid 21228] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21227] <... futex resumed>) = 0 [pid 21231] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21230] close(3 [pid 21229] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21228] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21227] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21231] <... prctl resumed>) = 0 [pid 21230] <... close resumed>) = 0 [pid 21229] <... futex resumed>) = 0 [pid 21228] <... futex resumed>) = 0 [pid 21227] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21231] setpgid(0, 0 [pid 21230] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21229] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21228] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21227] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21231] <... setpgid resumed>) = 0 [pid 21230] <... futex resumed>) = 0 [pid 21229] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21227] <... futex resumed>) = 0 [pid 21231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21230] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21229] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21228] dup(4 [pid 21227] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21231] <... openat resumed>) = 3 [pid 21230] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21229] <... mprotect resumed>) = 0 [pid 21228] <... dup resumed>) = 5 [pid 21231] write(3, "1000", 4 [pid 21230] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21229] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21228] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21231] <... write resumed>) = 4 [pid 21230] <... mprotect resumed>) = 0 [pid 21231] close(3 [pid 21230] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21229] <... clone resumed>, parent_tid=[21232], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21232 [pid 21228] <... futex resumed>) = 1 [pid 21227] <... futex resumed>) = 0 [pid 21231] <... close resumed>) = 0 [pid 21229] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21228] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21227] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21231] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21230] <... clone resumed>, parent_tid=[21233], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21233 [pid 21229] <... futex resumed>) = 0 [pid 21228] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21227] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21232 attached [pid 21231] <... futex resumed>) = 0 [pid 21230] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21229] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21228] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21227] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21232] set_robust_list(0x7f61a3ef39e0, 24 [pid 21231] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21230] <... futex resumed>) = 0 [pid 21232] <... set_robust_list resumed>) = 0 [pid 21231] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21230] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21232] mkdir("./file0", 0777 [pid 21231] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 21233 attached [pid 21232] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21231] <... mprotect resumed>) = 0 [pid 21233] set_robust_list(0x7f61a3ef39e0, 24 [pid 21232] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21231] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21233] <... set_robust_list resumed>) = 0 [pid 21232] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21233] mkdir("./file0", 0777 [pid 21232] <... futex resumed>) = 1 [pid 21231] <... clone resumed>, parent_tid=[21234], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21234 [pid 21229] <... futex resumed>) = 0 [pid 21233] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21232] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21231] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21229] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21233] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21232] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21231] <... futex resumed>) = 0 [pid 21229] <... futex resumed>) = 0 [pid 21233] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21232] pipe2( [pid 21231] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21229] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21233] <... futex resumed>) = 1 [pid 21232] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21230] <... futex resumed>) = 0 [pid 21233] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21232] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21230] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21233] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21232] <... futex resumed>) = 0 [pid 21230] <... futex resumed>) = 0 [pid 21233] pipe2( [pid 21232] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21230] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21233] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21233] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21230] <... futex resumed>) = 0 [pid 21233] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21230] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21233] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21230] <... futex resumed>) = 0 [pid 21233] dup(4 [pid 21230] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21233] <... dup resumed>) = 5 [pid 21229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21233] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21229] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21233] <... futex resumed>) = 1 [pid 21232] <... futex resumed>) = 0 [pid 21230] <... futex resumed>) = 0 [pid 21229] <... futex resumed>) = 1 [pid 21233] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21232] dup(4 [pid 21230] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21229] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21228] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21233] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21232] <... dup resumed>) = 5 [pid 21230] <... futex resumed>) = 0 [pid 21233] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21232] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21230] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21232] <... futex resumed>) = 1 [pid 21229] <... futex resumed>) = 0 [pid 21232] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21229] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21228] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21232] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21229] <... futex resumed>) = 0 [pid 21227] <... futex resumed>) = 0 [pid 21228] <... futex resumed>) = 1 [pid 21232] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21229] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21228] write(5, NULL, 176 [pid 21227] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21234 attached [pid 21228] <... write resumed>) = -1 EFAULT (Bad address) [pid 21227] <... futex resumed>) = 0 [pid 21234] set_robust_list(0x7f61a3ef39e0, 24 [pid 21228] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21227] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21234] <... set_robust_list resumed>) = 0 [pid 21228] <... futex resumed>) = 0 [pid 21227] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21234] mkdir("./file0", 0777 [pid 21233] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21228] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21227] exit_group(0 [pid 21234] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21228] <... futex resumed>) = ? [pid 21227] <... exit_group resumed>) = ? [pid 21234] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21228] +++ exited with 0 +++ [pid 21227] +++ exited with 0 +++ [pid 21234] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21231] <... futex resumed>) = 0 [pid 21234] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21233] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21231] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21233] <... futex resumed>) = 1 [pid 21231] <... futex resumed>) = 0 [pid 21230] <... futex resumed>) = 0 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21227, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21234] pipe2( [pid 21233] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21232] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21231] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21230] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 21234] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21233] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21232] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21230] <... futex resumed>) = 0 [pid 21234] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21233] write(5, NULL, 176 [pid 21232] <... futex resumed>) = 1 [pid 21229] <... futex resumed>) = 0 [pid 3601] <... restart_syscall resumed>) = 0 [pid 21234] <... futex resumed>) = 1 [pid 21233] <... write resumed>) = -1 EFAULT (Bad address) [pid 21232] write(5, NULL, 176 [pid 21231] <... futex resumed>) = 0 [pid 21230] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21229] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21234] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21233] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21232] <... write resumed>) = -1 EFAULT (Bad address) [pid 21231] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21230] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21229] <... futex resumed>) = 0 [pid 21234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21233] <... futex resumed>) = 0 [pid 21232] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21231] <... futex resumed>) = 0 [pid 21230] exit_group(0 [pid 21229] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21234] dup(4 [pid 21232] <... futex resumed>) = 0 [pid 21231] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21230] <... exit_group resumed>) = ? [pid 21229] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 21234] <... dup resumed>) = 5 [pid 21233] +++ exited with 0 +++ [pid 21232] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21229] exit_group(0 [pid 21234] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21232] <... futex resumed>) = ? [pid 21230] +++ exited with 0 +++ [pid 21229] <... exit_group resumed>) = ? [pid 3601] <... openat resumed>) = 3 [pid 21234] <... futex resumed>) = 1 [pid 21232] +++ exited with 0 +++ [pid 21231] <... futex resumed>) = 0 [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21230, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3 [pid 21229] +++ exited with 0 +++ [pid 21234] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21231] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3601] <... close resumed>) = 0 [pid 21234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21231] <... futex resumed>) = 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21229, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21234] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21231] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 3607] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 21235 attached ) = 0 [pid 21235] set_robust_list(0x555556ba76e0, 24 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21235 [pid 21235] <... set_robust_list resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21235] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] <... openat resumed>) = 3 [pid 21235] <... prctl resumed>) = 0 [pid 3607] <... openat resumed>) = 3 [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21235] setpgid(0, 0 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21235] <... setpgid resumed>) = 0 [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] close(3 [pid 21235] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] close(3 [pid 3606] <... close resumed>) = 0 [pid 21235] <... openat resumed>) = 3 [pid 3607] <... close resumed>) = 0 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21235] write(3, "1000", 4 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 21237 attached ./strace-static-x86_64: Process 21236 attached [pid 21235] <... write resumed>) = 4 [pid 21234] <... mount resumed>) = -1 EFAULT (Bad address) [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21236 [pid 21237] set_robust_list(0x555556ba76e0, 24 [pid 21236] set_robust_list(0x555556ba76e0, 24 [pid 21235] close(3 [pid 21234] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21237 [pid 21237] <... set_robust_list resumed>) = 0 [pid 21236] <... set_robust_list resumed>) = 0 [pid 21235] <... close resumed>) = 0 [pid 21234] <... futex resumed>) = 1 [pid 21231] <... futex resumed>) = 0 [pid 21237] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21236] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21235] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21234] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21231] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21237] <... prctl resumed>) = 0 [pid 21236] <... prctl resumed>) = 0 [pid 21235] <... futex resumed>) = 0 [pid 21234] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21231] <... futex resumed>) = 0 [pid 21237] setpgid(0, 0 [pid 21236] setpgid(0, 0 [pid 21235] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21234] write(5, NULL, 176 [pid 21231] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21237] <... setpgid resumed>) = 0 [pid 21236] <... setpgid resumed>) = 0 [pid 21235] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21234] <... write resumed>) = -1 EFAULT (Bad address) [pid 21237] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21235] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21234] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21237] <... openat resumed>) = 3 [pid 21236] <... openat resumed>) = 3 [pid 21235] <... mprotect resumed>) = 0 [pid 21234] <... futex resumed>) = 1 [pid 21231] <... futex resumed>) = 0 [pid 21237] write(3, "1000", 4 [pid 21236] write(3, "1000", 4 [pid 21235] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21237] <... write resumed>) = 4 [pid 21236] <... write resumed>) = 4 [pid 21237] close(3 [pid 21236] close(3 [pid 21235] <... clone resumed>, parent_tid=[21238], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21238 [pid 21237] <... close resumed>) = 0 [pid 21236] <... close resumed>) = 0 [pid 21235] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21237] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21236] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21235] <... futex resumed>) = 0 [pid 21237] <... futex resumed>) = 0 [pid 21236] <... futex resumed>) = 0 [pid 21235] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21237] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21236] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21237] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21236] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21237] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21236] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21237] <... mprotect resumed>) = 0 [pid 21236] <... mprotect resumed>) = 0 [pid 21237] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21236] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21234] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21231] exit_group(0) = ? [pid 21234] <... futex resumed>) = ? [pid 21237] <... clone resumed>, parent_tid=[21239], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21239 [pid 21236] <... clone resumed>, parent_tid=[21240], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21240 [pid 21237] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21236] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21237] <... futex resumed>) = 0 [pid 21236] <... futex resumed>) = 0 [pid 21237] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21236] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21234] +++ exited with 0 +++ [pid 21231] +++ exited with 0 +++ ./strace-static-x86_64: Process 21239 attached [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21231, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21239] set_robust_list(0x7f61a3ef39e0, 24 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 21240 attached [pid 21239] <... set_robust_list resumed>) = 0 [pid 3604] <... openat resumed>) = 3 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21240] set_robust_list(0x7f61a3ef39e0, 24 [pid 21239] mkdir("./file0", 0777 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21240] <... set_robust_list resumed>) = 0 [pid 21240] mkdir("./file0", 0777 [pid 21239] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 3604] close(3 [pid 21240] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21239] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3604] <... close resumed>) = 0 [pid 21240] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21239] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21240] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21239] <... futex resumed>) = 1 [pid 21237] <... futex resumed>) = 0 [pid 21240] <... futex resumed>) = 1 [pid 21239] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21237] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21236] <... futex resumed>) = 0 [pid 21240] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21239] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21237] <... futex resumed>) = 0 [pid 21236] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21240] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21239] pipe2( [pid 21237] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21236] <... futex resumed>) = 0 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21241 [pid 21240] pipe2( [pid 21239] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21236] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21238 attached [pid 21240] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21239] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21240] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21239] <... futex resumed>) = 1 [pid 21237] <... futex resumed>) = 0 [pid 21238] set_robust_list(0x7f61a3ef39e0, 24./strace-static-x86_64: Process 21241 attached [pid 21240] <... futex resumed>) = 1 [pid 21239] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21238] <... set_robust_list resumed>) = 0 [pid 21237] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21236] <... futex resumed>) = 0 [pid 21240] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21239] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21237] <... futex resumed>) = 0 [pid 21236] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21241] set_robust_list(0x555556ba76e0, 24 [pid 21240] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21239] dup(4 [pid 21238] mkdir("./file0", 0777 [pid 21237] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21236] <... futex resumed>) = 0 [pid 21240] dup(4 [pid 21239] <... dup resumed>) = 5 [pid 21236] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21241] <... set_robust_list resumed>) = 0 [pid 21240] <... dup resumed>) = 5 [pid 21239] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21238] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21240] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21239] <... futex resumed>) = 1 [pid 21238] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21237] <... futex resumed>) = 0 [pid 21241] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21240] <... futex resumed>) = 1 [pid 21239] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21237] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21236] <... futex resumed>) = 0 [pid 21238] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21240] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21239] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21237] <... futex resumed>) = 0 [pid 21236] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21241] <... prctl resumed>) = 0 [pid 21240] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21239] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21238] <... futex resumed>) = 1 [pid 21237] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21236] <... futex resumed>) = 0 [pid 21235] <... futex resumed>) = 0 [pid 21241] setpgid(0, 0 [pid 21240] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21236] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21235] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21241] <... setpgid resumed>) = 0 [pid 21238] pipe2( [pid 21235] <... futex resumed>) = 0 [pid 21241] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21238] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21235] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21238] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21241] <... openat resumed>) = 3 [pid 21238] <... futex resumed>) = 1 [pid 21235] <... futex resumed>) = 0 [pid 21241] write(3, "1000", 4 [pid 21238] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21235] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21241] <... write resumed>) = 4 [pid 21238] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21235] <... futex resumed>) = 0 [pid 21241] close(3 [pid 21238] dup(4 [pid 21235] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21241] <... close resumed>) = 0 [pid 21238] <... dup resumed>) = 5 [pid 21241] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21238] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21241] <... futex resumed>) = 0 [pid 21238] <... futex resumed>) = 1 [pid 21235] <... futex resumed>) = 0 [pid 21241] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21238] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21235] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21241] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21238] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21235] <... futex resumed>) = 0 [pid 21241] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21238] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21235] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21241] <... mprotect resumed>) = 0 [pid 21241] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID./strace-static-x86_64: Process 21242 attached , parent_tid=[21242], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21242 [pid 21241] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21242] set_robust_list(0x7f61a3ef39e0, 24 [pid 21241] <... futex resumed>) = 0 [pid 21242] <... set_robust_list resumed>) = 0 [pid 21241] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21242] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21242] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21242] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21241] <... futex resumed>) = 0 [pid 21242] pipe2( [pid 21241] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21242] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21241] <... futex resumed>) = 0 [pid 21239] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21242] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21241] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21242] <... futex resumed>) = 0 [pid 21241] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21242] dup(4 [pid 21241] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21240] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21242] <... dup resumed>) = 5 [pid 21241] <... futex resumed>) = 0 [pid 21242] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21241] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21240] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21239] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21242] <... futex resumed>) = 0 [pid 21241] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21242] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21241] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21240] <... futex resumed>) = 1 [pid 21239] <... futex resumed>) = 1 [pid 21238] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21237] <... futex resumed>) = 0 [pid 21236] <... futex resumed>) = 0 [pid 21242] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21241] <... futex resumed>) = 0 [pid 21240] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21239] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21238] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21237] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21236] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21242] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21241] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21240] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21239] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21238] <... futex resumed>) = 1 [pid 21237] <... futex resumed>) = 0 [pid 21236] <... futex resumed>) = 0 [pid 21235] <... futex resumed>) = 0 [pid 21240] write(5, NULL, 176 [pid 21239] write(5, NULL, 176 [pid 21238] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21237] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21236] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21235] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21240] <... write resumed>) = -1 EFAULT (Bad address) [pid 21239] <... write resumed>) = -1 EFAULT (Bad address) [pid 21238] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21240] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21239] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21238] write(5, NULL, 176 [pid 21235] <... futex resumed>) = 0 [pid 21240] <... futex resumed>) = 1 [pid 21239] <... futex resumed>) = 1 [pid 21238] <... write resumed>) = -1 EFAULT (Bad address) [pid 21237] <... futex resumed>) = 0 [pid 21236] <... futex resumed>) = 0 [pid 21235] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21240] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21239] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21238] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21237] exit_group(0 [pid 21236] exit_group(0 [pid 21240] <... futex resumed>) = ? [pid 21239] <... futex resumed>) = ? [pid 21238] <... futex resumed>) = 0 [pid 21237] <... exit_group resumed>) = ? [pid 21236] <... exit_group resumed>) = ? [pid 21240] +++ exited with 0 +++ [pid 21239] +++ exited with 0 +++ [pid 21238] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21237] +++ exited with 0 +++ [pid 21236] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21237, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21236, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 3607] <... restart_syscall resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3607] <... openat resumed>) = 3 [pid 3606] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21235] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21235] exit_group(0 [pid 3607] close(3 [pid 3606] close(3 [pid 21238] <... futex resumed>) = ? [pid 21235] <... exit_group resumed>) = ? [pid 3607] <... close resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 21238] +++ exited with 0 +++ [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21235] +++ exited with 0 +++ [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21243 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21244 [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21235, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 21243 attached [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3601] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3601] close(3) = 0 ./strace-static-x86_64: Process 21244 attached [pid 21243] set_robust_list(0x555556ba76e0, 24 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21243] <... set_robust_list resumed>) = 0 [pid 21244] set_robust_list(0x555556ba76e0, 24 [pid 21243] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21243] setpgid(0, 0) = 0 [pid 21243] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21243] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 21245 attached [pid 21244] <... set_robust_list resumed>) = 0 [pid 21243] close(3 [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21245 [pid 21243] <... close resumed>) = 0 [pid 21242] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21245] set_robust_list(0x555556ba76e0, 24 [pid 21244] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21243] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21242] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21245] <... set_robust_list resumed>) = 0 [pid 21244] <... prctl resumed>) = 0 [pid 21243] <... futex resumed>) = 0 [pid 21242] <... futex resumed>) = 1 [pid 21241] <... futex resumed>) = 0 [pid 21245] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21244] setpgid(0, 0 [pid 21243] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21242] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21241] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21245] <... prctl resumed>) = 0 [pid 21244] <... setpgid resumed>) = 0 [pid 21242] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21241] <... futex resumed>) = 0 [pid 21245] setpgid(0, 0 [pid 21244] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21243] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21242] write(5, NULL, 176 [pid 21241] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21245] <... setpgid resumed>) = 0 [pid 21244] <... openat resumed>) = 3 [pid 21243] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21242] <... write resumed>) = -1 EFAULT (Bad address) [pid 21245] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21244] write(3, "1000", 4 [pid 21243] <... mprotect resumed>) = 0 [pid 21242] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21245] <... openat resumed>) = 3 [pid 21244] <... write resumed>) = 4 [pid 21243] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21242] <... futex resumed>) = 1 [pid 21241] <... futex resumed>) = 0 [pid 21245] write(3, "1000", 4 [pid 21244] close(3 [pid 21242] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21241] exit_group(0 [pid 21245] <... write resumed>) = 4 [pid 21244] <... close resumed>) = 0 [pid 21242] <... futex resumed>) = ? [pid 21241] <... exit_group resumed>) = ? [pid 21243] <... clone resumed>, parent_tid=[21246], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21246 [pid 21245] close(3 [pid 21244] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21243] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21242] +++ exited with 0 +++ [pid 21241] +++ exited with 0 +++ [pid 21245] <... close resumed>) = 0 [pid 21244] <... futex resumed>) = 0 [pid 21243] <... futex resumed>) = 0 [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21241, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21245] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21244] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21243] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] restart_syscall(<... resuming interrupted clone ...> [pid 21245] <... futex resumed>) = 0 [pid 21244] <... mmap resumed>) = 0x7f61a3ed3000 [pid 3604] <... restart_syscall resumed>) = 0 [pid 21245] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21244] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21245] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21244] <... mprotect resumed>) = 0 [pid 21245] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21244] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 21245] <... mprotect resumed>) = 0 [pid 3604] <... openat resumed>) = 3 ./strace-static-x86_64: Process 21246 attached [pid 21245] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21244] <... clone resumed>, parent_tid=[21247], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21247 [pid 3604] ioctl(3, LOOP_CLR_FD [pid 21246] set_robust_list(0x7f61a3ef39e0, 24 [pid 21244] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21246] <... set_robust_list resumed>) = 0 [pid 21245] <... clone resumed>, parent_tid=[21248], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21248 [pid 21244] <... futex resumed>) = 0 [pid 3604] close(3 [pid 21245] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21244] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3604] <... close resumed>) = 0 [pid 21246] mkdir("./file0", 0777 [pid 21245] <... futex resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21246] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21245] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21246] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21249 [pid 21246] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21243] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21247 attached [pid 21246] pipe2( [pid 21243] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21247] set_robust_list(0x7f61a3ef39e0, 24 [pid 21246] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21243] <... futex resumed>) = 0 [pid 21246] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21243] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21247] <... set_robust_list resumed>) = 0 [pid 21246] <... futex resumed>) = 0 [pid 21247] mkdir("./file0", 0777 [pid 21246] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21243] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21247] <... mkdir resumed>) = -1 EEXIST (File exists) ./strace-static-x86_64: Process 21249 attached [pid 21247] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21249] set_robust_list(0x555556ba76e0, 24 [pid 21247] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21249] <... set_robust_list resumed>) = 0 [pid 21247] <... futex resumed>) = 1 [pid 21244] <... futex resumed>) = 0 [pid 21249] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21247] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21244] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21249] <... prctl resumed>) = 0 [pid 21247] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21244] <... futex resumed>) = 0 [pid 21249] setpgid(0, 0 [pid 21247] pipe2( [pid 21244] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21249] <... setpgid resumed>) = 0 [pid 21247] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21249] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21247] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21249] <... openat resumed>) = 3 [pid 21247] <... futex resumed>) = 1 [pid 21246] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21244] <... futex resumed>) = 0 [pid 21243] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21249] write(3, "1000", 4 [pid 21247] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21246] dup(4 [pid 21244] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21243] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21248 attached [pid 21249] <... write resumed>) = 4 [pid 21247] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21246] <... dup resumed>) = 5 [pid 21244] <... futex resumed>) = 0 [pid 21243] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21249] close(3 [pid 21248] set_robust_list(0x7f61a3ef39e0, 24 [pid 21247] dup(4 [pid 21246] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21244] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21243] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21249] <... close resumed>) = 0 [pid 21248] <... set_robust_list resumed>) = 0 [pid 21247] <... dup resumed>) = 5 [pid 21246] <... futex resumed>) = 0 [pid 21243] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21249] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21248] mkdir("./file0", 0777 [pid 21247] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21246] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21243] <... futex resumed>) = 0 [pid 21249] <... futex resumed>) = 0 [pid 21247] <... futex resumed>) = 1 [pid 21244] <... futex resumed>) = 0 [pid 21249] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21247] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21244] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21243] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21249] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21247] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21244] <... futex resumed>) = 0 [pid 21249] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21247] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21244] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21249] <... mprotect resumed>) = 0 [pid 21248] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21249] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21248] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21249] <... clone resumed>, parent_tid=[21250], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21250 [pid 21249] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21249] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21250 attached [pid 21250] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21250] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21250] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21248] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21245] <... futex resumed>) = 0 [pid 21248] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21245] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21250] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21248] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21245] <... futex resumed>) = 0 [pid 21250] <... futex resumed>) = 1 [pid 21249] <... futex resumed>) = 0 [pid 21245] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21248] pipe2( [pid 21246] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21250] pipe2( [pid 21249] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21248] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21250] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21249] <... futex resumed>) = 0 [pid 21246] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21248] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21250] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21249] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21247] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21246] <... futex resumed>) = 1 [pid 21243] <... futex resumed>) = 0 [pid 21250] <... futex resumed>) = 0 [pid 21249] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21248] <... futex resumed>) = 1 [pid 21247] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21246] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21245] <... futex resumed>) = 0 [pid 21243] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21250] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21249] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21248] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21247] <... futex resumed>) = 1 [pid 21246] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21245] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21244] <... futex resumed>) = 0 [pid 21243] <... futex resumed>) = 0 [pid 21250] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21249] <... futex resumed>) = 0 [pid 21248] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21247] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21246] write(5, NULL, 176 [pid 21245] <... futex resumed>) = 0 [pid 21244] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21243] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21250] dup(4 [pid 21249] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21248] dup(4 [pid 21247] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21246] <... write resumed>) = -1 EFAULT (Bad address) [pid 21245] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21244] <... futex resumed>) = 0 [pid 21250] <... dup resumed>) = 5 [pid 21248] <... dup resumed>) = 5 [pid 21247] write(5, NULL, 176 [pid 21246] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21244] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21250] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21248] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21247] <... write resumed>) = -1 EFAULT (Bad address) [pid 21246] <... futex resumed>) = 1 [pid 21243] <... futex resumed>) = 0 [pid 21250] <... futex resumed>) = 1 [pid 21249] <... futex resumed>) = 0 [pid 21248] <... futex resumed>) = 1 [pid 21247] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21246] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21245] <... futex resumed>) = 0 [pid 21243] exit_group(0 [pid 21250] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21249] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21248] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21247] <... futex resumed>) = 1 [pid 21246] <... futex resumed>) = ? [pid 21245] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21244] <... futex resumed>) = 0 [pid 21243] <... exit_group resumed>) = ? [pid 21250] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21249] <... futex resumed>) = 0 [pid 21248] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21247] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21246] +++ exited with 0 +++ [pid 21245] <... futex resumed>) = 0 [pid 21244] exit_group(0 [pid 21250] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21249] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21247] <... futex resumed>) = ? [pid 21245] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21244] <... exit_group resumed>) = ? [pid 21243] +++ exited with 0 +++ [pid 21248] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21247] +++ exited with 0 +++ [pid 21244] +++ exited with 0 +++ [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21243, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21244, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 3607] <... openat resumed>) = 3 [pid 3606] <... openat resumed>) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD [pid 3606] ioctl(3, LOOP_CLR_FD [pid 3607] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 3606] close(3 [pid 3607] <... close resumed>) = 0 [pid 3606] <... close resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3607] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21251 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21252 ./strace-static-x86_64: Process 21252 attached [pid 21252] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21252] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21252] setpgid(0, 0) = 0 [pid 21252] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 21251 attached ) = 3 [pid 21252] write(3, "1000", 4 [pid 21251] set_robust_list(0x555556ba76e0, 24 [pid 21252] <... write resumed>) = 4 [pid 21251] <... set_robust_list resumed>) = 0 [pid 21252] close(3 [pid 21251] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21252] <... close resumed>) = 0 [pid 21251] <... prctl resumed>) = 0 [pid 21252] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21251] setpgid(0, 0 [pid 21252] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21251] <... setpgid resumed>) = 0 [pid 21252] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21251] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 21252] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21251] <... openat resumed>) = 3 [pid 21252] <... mprotect resumed>) = 0 [pid 21251] write(3, "1000", 4 [pid 21252] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21251] <... write resumed>) = 4 [pid 21251] close(3 [pid 21252] <... clone resumed>, parent_tid=[21253], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21253 [pid 21251] <... close resumed>) = 0 [pid 21252] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21251] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21252] <... futex resumed>) = 0 [pid 21251] <... futex resumed>) = 0 [pid 21252] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21251] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21251] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21251] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21254], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21254 [pid 21251] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21251] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21253 attached [pid 21253] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21253] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 21253] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21253] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21252] <... futex resumed>) = 0 ./strace-static-x86_64: Process 21254 attached [pid 21253] pipe2( [pid 21252] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21254] set_robust_list(0x7f61a3ef39e0, 24 [pid 21253] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21252] <... futex resumed>) = 0 [pid 21254] <... set_robust_list resumed>) = 0 [pid 21253] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21252] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21254] mkdir("./file0", 0777 [pid 21253] <... futex resumed>) = 0 [pid 21252] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21250] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21254] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21253] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21252] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21250] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21254] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21252] <... futex resumed>) = 0 [pid 21254] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21253] dup(4 [pid 21252] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21250] <... futex resumed>) = 1 [pid 21249] <... futex resumed>) = 0 [pid 21248] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21254] <... futex resumed>) = 1 [pid 21253] <... dup resumed>) = 5 [pid 21251] <... futex resumed>) = 0 [pid 21250] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21249] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21248] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21254] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21253] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21251] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21250] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21249] <... futex resumed>) = 0 [pid 21248] <... futex resumed>) = 1 [pid 21245] <... futex resumed>) = 0 [pid 21254] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21253] <... futex resumed>) = 1 [pid 21252] <... futex resumed>) = 0 [pid 21251] <... futex resumed>) = 0 [pid 21250] write(5, NULL, 176 [pid 21249] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21248] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21245] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21254] pipe2( [pid 21253] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21252] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21251] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21250] <... write resumed>) = -1 EFAULT (Bad address) [pid 21248] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21245] <... futex resumed>) = 0 [pid 21254] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21252] <... futex resumed>) = 0 [pid 21250] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21248] write(5, NULL, 176 [pid 21245] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21254] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21253] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21252] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21250] <... futex resumed>) = 1 [pid 21249] <... futex resumed>) = 0 [pid 21248] <... write resumed>) = -1 EFAULT (Bad address) [pid 21254] <... futex resumed>) = 1 [pid 21251] <... futex resumed>) = 0 [pid 21254] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21251] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21254] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21251] <... futex resumed>) = 0 [pid 21254] dup(4 [pid 21251] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21254] <... dup resumed>) = 5 [pid 21254] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21251] <... futex resumed>) = 0 [pid 21254] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21251] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21254] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21251] <... futex resumed>) = 0 [pid 21254] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21251] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21253] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21250] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21249] exit_group(0 [pid 21248] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21254] <... mount resumed>) = -1 EFAULT (Bad address) [pid 21253] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21254] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21253] <... futex resumed>) = 1 [pid 21252] <... futex resumed>) = 0 [pid 21250] <... futex resumed>) = ? [pid 21249] <... exit_group resumed>) = ? [pid 21248] <... futex resumed>) = 1 [pid 21245] <... futex resumed>) = 0 [pid 21254] <... futex resumed>) = 1 [pid 21253] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21252] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21251] <... futex resumed>) = 0 [pid 21245] exit_group(0 [pid 21254] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21253] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21252] <... futex resumed>) = 0 [pid 21251] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21254] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21253] write(5, NULL, 176 [pid 21252] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21251] <... futex resumed>) = 0 [pid 21250] +++ exited with 0 +++ [pid 21249] +++ exited with 0 +++ [pid 21245] <... exit_group resumed>) = ? [pid 21254] write(5, NULL, 176 [pid 21253] <... write resumed>) = -1 EFAULT (Bad address) [pid 21251] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21248] +++ exited with 0 +++ [pid 21245] +++ exited with 0 +++ [pid 3601] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21245, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] restart_syscall(<... resuming interrupted clone ...> [pid 3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21249, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3601] <... restart_syscall resumed>) = 0 [pid 3604] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 3601] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 3604] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 3601] ioctl(3, LOOP_CLR_FD [pid 21254] <... write resumed>) = -1 EFAULT (Bad address) [pid 21253] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3604] <... openat resumed>) = 3 [pid 3601] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3604] ioctl(3, LOOP_CLR_FD [pid 3601] close(3 [pid 3604] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 3601] <... close resumed>) = 0 [pid 3604] close(3 [pid 3601] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3604] <... close resumed>) = 0 [pid 3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 3601] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21255 [pid 3604] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21256 ./strace-static-x86_64: Process 21256 attached [pid 21254] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21256] set_robust_list(0x555556ba76e0, 24./strace-static-x86_64: Process 21255 attached [pid 21254] <... futex resumed>) = 1 [pid 21253] <... futex resumed>) = 1 [pid 21252] <... futex resumed>) = 0 [pid 21251] <... futex resumed>) = 0 [pid 21256] <... set_robust_list resumed>) = 0 [pid 21256] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21256] setpgid(0, 0) = 0 [pid 21256] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21256] write(3, "1000", 4) = 4 [pid 21256] close(3 [pid 21254] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21253] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21252] exit_group(0 [pid 21256] <... close resumed>) = 0 [pid 21255] set_robust_list(0x555556ba76e0, 24 [pid 21251] exit_group(0 [pid 21256] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21256] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21256] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21257], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21257 [pid 21256] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21256] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000}./strace-static-x86_64: Process 21257 attached [pid 21257] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21255] <... set_robust_list resumed>) = 0 [pid 21252] <... exit_group resumed>) = ? [pid 21251] <... exit_group resumed>) = ? [pid 21254] <... futex resumed>) = ? [pid 21253] <... futex resumed>) = ? [pid 21255] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 21254] +++ exited with 0 +++ [pid 21251] +++ exited with 0 +++ [pid 21253] +++ exited with 0 +++ [pid 21257] mkdir("./file0", 0777 [pid 21252] +++ exited with 0 +++ [pid 21257] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21255] <... prctl resumed>) = 0 [pid 21257] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21257] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21256] <... futex resumed>) = 0 [pid 21257] pipe2( [pid 21256] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21257] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21256] <... futex resumed>) = 0 [pid 21255] setpgid(0, 0 [pid 3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21251, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=21252, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 21257] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21256] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21257] <... futex resumed>) = 0 [pid 21256] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21257] dup(4 [pid 21256] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21257] <... dup resumed>) = 5 [pid 21256] <... futex resumed>) = 0 [pid 21257] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21256] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21255] <... setpgid resumed>) = 0 [pid 3607] restart_syscall(<... resuming interrupted clone ...> [pid 3606] restart_syscall(<... resuming interrupted clone ...> [pid 21257] <... futex resumed>) = 0 [pid 21256] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21257] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21256] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21257] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 285.642089][ T28] INFO: task syz-executor415:3645 blocked for more than 143 seconds. [ 285.650708][ T28] Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0 [ 285.659241][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 285.668732][ T28] task:syz-executor415 state:D stack:27480 pid: 3645 ppid: 3603 flags:0x00004004 [ 285.681842][ T28] Call Trace: [ 285.685846][ T28] [pid 21256] <... futex resumed>) = 0 [pid 21257] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21256] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21255] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 3607] <... restart_syscall resumed>) = 0 [pid 3606] <... restart_syscall resumed>) = 0 [pid 21255] <... openat resumed>) = 3 [pid 21255] write(3, "1000", 4) = 4 [pid 21255] close(3) = 0 [pid 21255] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21255] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21255] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21258], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21258 [pid 21255] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 21258 attached ) = 0 [pid 21255] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 3607] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 3607] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 3607] close(3 [pid 21258] set_robust_list(0x7f61a3ef39e0, 24 [pid 3607] <... close resumed>) = 0 [pid 3606] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 21258] <... set_robust_list resumed>) = 0 [pid 3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556ba76d0) = 21259 [pid 3606] <... openat resumed>) = 3 [pid 21258] mkdir("./file0", 0777./strace-static-x86_64: Process 21259 attached ) = -1 EEXIST (File exists) [pid 3606] ioctl(3, LOOP_CLR_FD [pid 21259] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21259] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21259] setpgid(0, 0) = 0 [pid 21258] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 3606] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 21258] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21259] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21259] write(3, "1000", 4 [pid 21258] <... futex resumed>) = 1 [ 285.689127][ T28] __schedule+0xa00/0x4c10 [ 285.694300][ T28] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 285.700414][ T28] ? io_schedule_timeout+0x140/0x140 [ 285.706521][ T28] schedule+0xda/0x1b0 [ 285.710700][ T28] schedule_timeout+0x1db/0x2a0 [ 285.716212][ T28] ? usleep_range_state+0x1b0/0x1b0 [ 285.725542][ T28] ? __wait_for_common+0x36f/0x530 [ 285.731771][ T28] ? lock_downgrade+0x6e0/0x6e0 [ 285.737169][ T28] ? do_raw_spin_lock+0x120/0x2a0 [pid 3606] close(3 [pid 21258] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21255] <... futex resumed>) = 0 [pid 21259] <... write resumed>) = 4 [pid 21259] close(3) = 0 [pid 21259] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21256] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 21255] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... close resumed>) = 0 [pid 21259] <... futex resumed>) = 0 [pid 21256] futex(0x7f61a3fcb4dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21256] <... futex resumed>) = 0 [pid 21259] <... mmap resumed>) = 0x7f61a3ed3000 [pid 21256] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 21259] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE [pid 21258] <... futex resumed>) = 0 [pid 21256] <... mmap resumed>) = 0x7f61a3eb2000 [pid 21255] <... futex resumed>) = 1 [pid 3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 21259] <... mprotect resumed>) = 0 [pid 21256] mprotect(0x7f61a3eb3000, 131072, PROT_READ|PROT_WRITE [pid 21259] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21256] <... mprotect resumed>) = 0 [pid 21256] clone(child_stack=0x7f61a3ed22f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 21259] <... clone resumed>, parent_tid=[21260], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21260 [pid 21259] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21258] pipe2( [pid 21256] <... clone resumed>, parent_tid=[21261], tls=0x7f61a3ed2700, child_tidptr=0x7f61a3ed29d0) = 21261 [pid 21255] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21259] <... futex resumed>) = 0 [pid 21258] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21256] futex(0x7f61a3fcb4d8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21259] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21256] <... futex resumed>) = 0 [pid 21256] futex(0x7f61a3fcb4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21261 attached [pid 21261] set_robust_list(0x7f61a3ed29e0, 24) = 0 [pid 21261] write(5, NULL, 176) = -1 EFAULT (Bad address) [pid 21261] futex(0x7f61a3fcb4dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21258] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 3606] <... clone resumed>, child_tidptr=0x555556ba76d0) = 21262 ./strace-static-x86_64: Process 21262 attached ./strace-static-x86_64: Process 21260 attached [pid 21261] <... futex resumed>) = 1 [pid 21256] <... futex resumed>) = 0 [pid 21261] futex(0x7f61a3fcb4d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21258] <... futex resumed>) = 1 [pid 21258] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21262] set_robust_list(0x555556ba76e0, 24) = 0 [pid 21260] set_robust_list(0x7f61a3ef39e0, 24 [pid 21255] <... futex resumed>) = 0 [pid 21262] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 21262] setpgid(0, 0) = 0 [pid 21262] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 21260] <... set_robust_list resumed>) = 0 [pid 21255] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21262] write(3, "1000", 4) = 4 [pid 21262] close(3) = 0 [pid 21262] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21255] <... futex resumed>) = 1 [pid 21262] <... futex resumed>) = 0 [ 285.742881][ T28] ? rwlock_bug.part.0+0x90/0x90 [ 285.748109][ T28] ? _raw_spin_unlock_irq+0x1f/0x40 [ 285.753749][ T28] ? _raw_spin_unlock_irq+0x1f/0x40 [ 285.758973][ T28] __wait_for_common+0x378/0x530 [ 285.764354][ T28] ? usleep_range_state+0x1b0/0x1b0 [ 285.770476][ T28] ? out_of_line_wait_on_bit_timeout+0x170/0x170 [ 285.777382][ T28] ? _raw_spin_unlock_irq+0x1f/0x40 [ 285.782882][ T28] ? _raw_spin_unlock_irq+0x1f/0x40 [ 285.788167][ T28] __flush_work+0x56c/0xb10 [pid 21260] mkdir("./file0", 0777 [pid 21258] <... futex resumed>) = 0 [pid 21255] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21262] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3ed3000 [pid 21262] mprotect(0x7f61a3ed4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21262] clone(child_stack=0x7f61a3ef32f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21263], tls=0x7f61a3ef3700, child_tidptr=0x7f61a3ef39d0) = 21263 ./strace-static-x86_64: Process 21263 attached [pid 21262] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21260] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21258] dup(4 [pid 21262] <... futex resumed>) = 0 [pid 21262] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=100000000} [pid 21263] set_robust_list(0x7f61a3ef39e0, 24) = 0 [pid 21263] mkdir("./file0", 0777 [pid 21260] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21258] <... dup resumed>) = 5 [pid 21263] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 21263] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 21263] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21262] <... futex resumed>) = 0 [pid 21263] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21262] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21263] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21262] <... futex resumed>) = 0 [pid 21263] pipe2( [pid 21262] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21260] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21258] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21263] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21263] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21262] <... futex resumed>) = 0 [pid 21263] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21262] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21263] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21262] <... futex resumed>) = 0 [pid 21258] <... futex resumed>) = 1 [pid 21255] <... futex resumed>) = 0 [pid 21263] dup(4 [pid 21262] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21260] <... futex resumed>) = 1 [pid 21259] <... futex resumed>) = 0 [pid 21263] <... dup resumed>) = 5 [pid 21263] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21262] <... futex resumed>) = 0 [pid 21263] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21262] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21263] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21262] <... futex resumed>) = 0 [pid 21260] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21259] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21258] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21255] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21263] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21262] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21260] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21259] <... futex resumed>) = 0 [pid 21258] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21255] <... futex resumed>) = 0 [pid 21260] pipe2( [pid 21259] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21258] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21255] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21260] <... pipe2 resumed>[3, 4], 0) = 0 [pid 21260] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21260] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21259] <... futex resumed>) = 0 [ 285.793821][ T28] ? queue_delayed_work_on+0x120/0x120 [ 285.799641][ T28] ? lock_downgrade+0x6e0/0x6e0 [ 285.804984][ T28] ? flush_workqueue_prep_pwqs+0x4f0/0x4f0 [ 285.810933][ T28] ? try_to_grab_pending+0xbd/0xd0 [ 285.816562][ T28] ? __cancel_work_timer+0x408/0x570 [ 285.822421][ T28] __cancel_work_timer+0x3f9/0x570 [ 285.827663][ T28] ? try_to_grab_pending+0xd0/0xd0 [ 285.833551][ T28] ? p9_fd_close+0x280/0x520 [ 285.838225][ T28] ? lock_downgrade+0x6e0/0x6e0 [pid 21259] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21260] <... futex resumed>) = 0 [pid 21259] <... futex resumed>) = 1 [pid 21260] dup(4 [pid 21259] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21260] <... dup resumed>) = 5 [pid 21260] futex(0x7f61a3fcb4cc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21259] <... futex resumed>) = 0 [pid 21260] futex(0x7f61a3fcb4c8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21259] futex(0x7f61a3fcb4c8, FUTEX_WAKE_PRIVATE, 1000000 [pid 21260] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 21259] <... futex resumed>) = 0 [pid 21260] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000005" [pid 21259] futex(0x7f61a3fcb4cc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21262] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 21262] futex(0x7f61a3fcb4dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21262] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3eb2000 [pid 21262] mprotect(0x7f61a3eb3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21262] clone(child_stack=0x7f61a3ed22f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21264], tls=0x7f61a3ed2700, child_tidptr=0x7f61a3ed29d0) = 21264 [pid 21262] futex(0x7f61a3fcb4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21262] futex(0x7f61a3fcb4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 21255] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) ./strace-static-x86_64: Process 21264 attached [pid 21264] set_robust_list(0x7f61a3ed29e0, 24) = 0 [ 285.843467][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 285.849303][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 285.855475][ T28] p9_fd_close+0x29c/0x520 [ 285.859923][ T28] p9_client_destroy+0xbe/0x370 [ 285.864835][ T28] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 285.870674][ T28] ? p9_tag_remove+0x250/0x250 [ 285.875562][ T28] ? ida_destroy+0x3b0/0x3b0 [ 285.880188][ T28] v9fs_session_close+0x45/0x2d0 [ 285.885319][ T28] v9fs_kill_super+0x49/0x90 [pid 21264] write(5, NULL, 176) = -1 EFAULT (Bad address) [pid 21255] futex(0x7f61a3fcb4dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21255] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3eb2000 [pid 21255] mprotect(0x7f61a3eb3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21255] clone(child_stack=0x7f61a3ed22f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21265], tls=0x7f61a3ed2700, child_tidptr=0x7f61a3ed29d0) = 21265 [pid 21255] futex(0x7f61a3fcb4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21255] futex(0x7f61a3fcb4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21265 attached [pid 21265] set_robust_list(0x7f61a3ed29e0, 24) = 0 [pid 21265] write(5, NULL, 176) = -1 EFAULT (Bad address) [pid 21265] futex(0x7f61a3fcb4dc, FUTEX_WAKE_PRIVATE, 1000000 [pid 21255] <... futex resumed>) = 0 [pid 21265] <... futex resumed>) = 1 [pid 21265] futex(0x7f61a3fcb4d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21264] futex(0x7f61a3fcb4dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21264] futex(0x7f61a3fcb4d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21262] <... futex resumed>) = 0 [pid 21259] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 21259] futex(0x7f61a3fcb4dc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21259] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f61a3eb2000 [pid 21259] mprotect(0x7f61a3eb3000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 21259] clone(child_stack=0x7f61a3ed22f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[21266], tls=0x7f61a3ed2700, child_tidptr=0x7f61a3ed29d0) = 21266 [pid 21259] futex(0x7f61a3fcb4d8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 21259] futex(0x7f61a3fcb4dc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 21266 attached [pid 21266] set_robust_list(0x7f61a3ed29e0, 24) = 0 [pid 21266] write(5, NULL, 176) = -1 EFAULT (Bad address) [pid 21266] futex(0x7f61a3fcb4dc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 21259] <... futex resumed>) = 0 [ 285.890004][ T28] deactivate_locked_super+0x94/0x160 [ 285.895603][ T28] v9fs_mount+0x69f/0xa80 [ 285.900574][ T28] ? v9fs_write_inode_dotl+0x140/0x140 [ 285.906366][ T28] legacy_get_tree+0x105/0x220 [ 285.911230][ T28] vfs_get_tree+0x89/0x2f0 [ 285.916593][ T28] path_mount+0x1320/0x1fa0 [ 285.921517][ T28] ? putname+0xfe/0x140 [ 285.926593][ T28] ? kmem_cache_free+0xed/0x5b0 [ 285.931572][ T28] ? finish_automount+0xaf0/0xaf0 [ 285.937447][ T28] ? putname+0xfe/0x140 [ 285.941642][ T28] __x64_sys_mount+0x27f/0x300 [ 285.946869][ T28] ? copy_mnt_ns+0xae0/0xae0 [ 285.951508][ T28] ? lockdep_hardirqs_on+0x79/0x100 [ 285.957069][ T28] ? _raw_spin_unlock_irq+0x2a/0x40 [ 285.962535][ T28] ? ptrace_notify+0xfa/0x140 [ 285.967494][ T28] do_syscall_64+0x35/0xb0 [ 285.972233][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 285.978156][ T28] RIP: 0033:0x7f61a3f46759 [ 285.983099][ T28] RSP: 002b:00007f61a3ef3208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [pid 21266] futex(0x7f61a3fcb4d8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 21256] exit_group(0) = ? [pid 21261] <... futex resumed>) = ? [pid 21261] +++ exited with 0 +++ [ 285.991711][ T28] RAX: ffffffffffffffda RBX: 00007f61a3fcb4c8 RCX: 00007f61a3f46759 [ 286.000138][ T28] RDX: 00000000200001c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 286.008911][ T28] RBP: 00007f61a3fcb4c0 R08: 00000000200003c0 R09: 0000000000000000 [ 286.017484][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f61a3fcb4cc [ 286.026026][ T28] R13: 00007ffe328c3e9f R14: 00007f61a3ef3300 R15: 0000000000022000 [ 286.034566][ T28] [pid 21262] exit_group(0 [pid 21264] <... futex resumed>) = ? [pid 21262] <... exit_group resumed>) = ? [pid 21264] +++ exited with 0 +++ [pid 21255] exit_group(0 [pid 21265] <... futex resumed>) = ? [pid 21255] <... exit_group resumed>) = ? [pid 21265] +++ exited with 0 +++ [ 286.044722][ T28] INFO: task syz-executor415:3893 blocked for more than 143 seconds. [ 286.055665][ T28] Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0 [ 286.063356][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.072282][ T28] task:syz-executor415 state:D stack:27480 pid: 3893 ppid: 3602 flags:0x00004004 [ 286.081514][ T28] Call Trace: [ 286.085190][ T28] [ 286.088667][ T28] __schedule+0xa00/0x4c10 [pid 21259] exit_group(0) = ? [pid 21266] <... futex resumed>) = ? [pid 21266] +++ exited with 0 +++ [ 286.093462][ T28] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 286.099708][ T28] ? io_schedule_timeout+0x140/0x140 [ 286.105621][ T28] schedule+0xda/0x1b0 [ 286.109905][ T28] schedule_timeout+0x1db/0x2a0 [ 286.114877][ T28] ? usleep_range_state+0x1b0/0x1b0 [ 286.120106][ T28] ? __wait_for_common+0x36f/0x530 [ 286.125644][ T28] ? lock_downgrade+0x6e0/0x6e0 [ 286.130523][ T28] ? do_raw_spin_lock+0x120/0x2a0 [ 286.135955][ T28] ? rwlock_bug.part.0+0x90/0x90 [ 286.141011][ T28] ? _raw_spin_unlock_irq+0x1f/0x40 [ 286.146872][ T28] ? _raw_spin_unlock_irq+0x1f/0x40 [ 286.152422][ T28] __wait_for_common+0x378/0x530 [ 286.157389][ T28] ? usleep_range_state+0x1b0/0x1b0 [ 286.162982][ T28] ? out_of_line_wait_on_bit_timeout+0x170/0x170 [ 286.169356][ T28] ? _raw_spin_unlock_irq+0x1f/0x40 [ 286.174992][ T28] ? _raw_spin_unlock_irq+0x1f/0x40 [ 286.180231][ T28] __flush_work+0x56c/0xb10 [ 286.184820][ T28] ? queue_delayed_work_on+0x120/0x120 [ 286.190297][ T28] ? lock_downgrade+0x6e0/0x6e0 [ 286.195351][ T28] ? flush_workqueue_prep_pwqs+0x4f0/0x4f0 [ 286.201317][ T28] ? try_to_grab_pending+0xbd/0xd0 [ 286.206813][ T28] ? __cancel_work_timer+0x408/0x570 [ 286.212404][ T28] __cancel_work_timer+0x3f9/0x570 [ 286.217555][ T28] ? try_to_grab_pending+0xd0/0xd0 [ 286.222746][ T28] ? p9_fd_close+0x280/0x520 [ 286.227555][ T28] ? lock_downgrade+0x6e0/0x6e0 [ 286.232774][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 286.238618][ T28] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 286.244833][ T28] p9_fd_close+0x29c/0x520 [ 286.249275][ T28] p9_client_destroy+0xbe/0x370 [ 286.255014][ T28] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 286.260858][ T28] ? p9_tag_remove+0x250/0x250 [ 286.266002][ T28] ? ida_destroy+0x3b0/0x3b0 [ 286.270771][ T28] v9fs_session_close+0x45/0x2d0 [ 286.275848][ T28] v9fs_kill_super+0x49/0x90 [ 286.280467][ T28] deactivate_locked_super+0x94/0x160 [ 286.285997][ T28] v9fs_mount+0x69f/0xa80 [ 286.290539][ T28] ? v9fs_write_inode_dotl+0x140/0x140 [ 286.296091][ T28] legacy_get_tree+0x105/0x220 [ 286.300966][ T28] vfs_get_tree+0x89/0x2f0 [ 286.305824][ T28] path_mount+0x1320/0x1fa0 [ 286.310351][ T28] ? putname+0xfe/0x140 [ 286.314862][ T28] ? kmem_cache_free+0xed/0x5b0 [ 286.319819][ T28] ? finish_automount+0xaf0/0xaf0 [ 286.325230][ T28] ? putname+0xfe/0x140 [ 286.329415][ T28] __x64_sys_mount+0x27f/0x300 [ 286.334521][ T28] ? copy_mnt_ns+0xae0/0xae0 [ 286.339132][ T28] ? lockdep_hardirqs_on+0x79/0x100 [ 286.344383][ T28] ? _raw_spin_unlock_irq+0x2a/0x40 [ 286.349600][ T28] ? ptrace_notify+0xfa/0x140 [ 286.354338][ T28] do_syscall_64+0x35/0xb0 [ 286.358785][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.364757][ T28] RIP: 0033:0x7f61a3f46759 [ 286.369192][ T28] RSP: 002b:00007f61a3ef3208 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 286.377862][ T28] RAX: ffffffffffffffda RBX: 00007f61a3fcb4c8 RCX: 00007f61a3f46759 [ 286.386092][ T28] RDX: 00000000200001c0 RSI: 0000000020000080 RDI: 0000000000000000 [ 286.394389][ T28] RBP: 00007f61a3fcb4c0 R08: 00000000200003c0 R09: 0000000000000000 [ 286.402614][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f61a3fcb4cc [ 286.410779][ T28] R13: 00007ffe328c3e9f R14: 00007f61a3ef3300 R15: 0000000000022000 [ 286.419114][ T28] [ 286.422211][ T28] [ 286.422211][ T28] Showing all locks held in the system: [ 286.429938][ T28] 2 locks held by kworker/0:0/6: [ 286.435023][ T28] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 [ 286.445569][ T28] #1: ffffc900000b7da8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 [ 286.456637][ T28] 1 lock held by rcu_tasks_kthre/12: [ 286.461964][ T28] #0: ffffffff8bd86870 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 [ 286.472454][ T28] 1 lock held by rcu_tasks_trace/13: [ 286.477734][ T28] #0: ffffffff8bd86570 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 [ 286.489128][ T28] 2 locks held by kworker/1:0/22: [ 286.494220][ T28] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 [ 286.504691][ T28] #1: ffffc900001c7da8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 [ 286.515870][ T28] 1 lock held by khungtaskd/28: [ 286.520737][ T28] #0: ffffffff8bd873c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 286.530965][ T28] 2 locks held by kworker/1:2/143: [ 286.536195][ T28] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 [ 286.546929][ T28] #1: ffffc9000295fda8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 [ 286.557927][ T28] 2 locks held by getty/3278: [ 286.562844][ T28] #0: ffff88814aab7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 [ 286.572878][ T28] #1: ffffc90002d262e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 [ 286.583235][ T28] 2 locks held by kworker/1:4/3672: [ 286.588443][ T28] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 [ 286.599256][ T28] #1: ffffc9000307fda8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 [ 286.610238][ T28] 2 locks held by kworker/0:3/3825: [ 286.615670][ T28] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 [ 286.626525][ T28] #1: ffffc9000348fda8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 [ 286.637800][ T28] 2 locks held by kworker/1:5/4117: [ 286.643532][ T28] #0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 [ 286.654289][ T28] #1: ffffc9000393fda8 ((work_completion)(&m->rq)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 [ 286.665304][ T28] [ 286.667638][ T28] ============================================= [ 286.667638][ T28] [ 286.676539][ T28] NMI backtrace for cpu 1 [ 286.680876][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0 [ 286.690425][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 286.700465][ T28] Call Trace: [ 286.703742][ T28] [ 286.706683][ T28] dump_stack_lvl+0xcd/0x134 [ 286.711280][ T28] nmi_cpu_backtrace.cold+0x47/0x144 [ 286.716588][ T28] ? lapic_can_unplug_cpu+0x80/0x80 [ 286.721808][ T28] nmi_trigger_cpumask_backtrace+0x1e6/0x230 [ 286.727804][ T28] watchdog+0xc1d/0xf50 [ 286.731961][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 286.737944][ T28] kthread+0x2e9/0x3a0 [ 286.742005][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 286.747632][ T28] ret_from_fork+0x1f/0x30 [ 286.752063][ T28] [ 286.755180][ T28] Sending NMI from CPU 1 to CPUs 0: [ 286.760413][ C0] NMI backtrace for cpu 0 [ 286.760422][ C0] CPU: 0 PID: 3607 Comm: syz-executor415 Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0 [ 286.760437][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 286.760445][ C0] RIP: 0010:kasan_check_range+0x12c/0x180 [ 286.760468][ C0] Code: 00 74 ef 49 8d 04 2c 48 85 d2 75 0b 48 89 da 48 29 c2 e9 55 ff ff ff 49 39 d2 75 17 49 0f be 02 41 83 e1 07 49 39 c1 7d 0a 5b 01 00 00 00 5d 41 5c c3 44 89 c2 e8 c3 ef ff ff 5b 83 f0 01 5d [ 286.760480][ C0] RSP: 0018:ffffc90002f5f8a8 EFLAGS: 00000046 [ 286.760495][ C0] RAX: fffffbfff1b78183 RBX: 0000000000000000 RCX: ffffffff815e9871 [ 286.760504][ C0] RDX: fffffbfff1b78183 RSI: 0000000000000008 RDI: ffffffff8dbc0c10 [ 286.760513][ C0] RBP: fffffbfff1b78182 R08: 0000000000000000 R09: ffffffff8dbc0c17 [ 286.760524][ C0] R10: fffffbfff1b78182 R11: 0000000000000001 R12: ffffffff8bd873c0 [ 286.760532][ C0] R13: 0000000000000000 R14: ffff8880b9a27900 R15: ffff88807c0a8000 [ 286.760543][ C0] FS: 0000555556ba7400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 286.760556][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.760565][ C0] CR2: 00007f61a3f973c8 CR3: 000000001bd38000 CR4: 0000000000350ef0 [ 286.760573][ C0] Call Trace: [ 286.760577][ C0] [ 286.760581][ C0] lock_release+0xa1/0x780 [ 286.760594][ C0] ? mark_lock.part.0+0xee/0x1910 [ 286.760606][ C0] ? select_task_rq_fair+0x45a/0x39e0 [ 286.760622][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 286.760637][ C0] select_task_rq_fair+0x472/0x39e0 [ 286.760658][ C0] try_to_wake_up+0x3d6/0x17e0 [ 286.760672][ C0] ? sched_core_balance+0x9c0/0x9c0 [ 286.760686][ C0] ? lock_release+0x780/0x780 [ 286.760698][ C0] child_wait_callback+0x1d5/0x280 [ 286.760716][ C0] __wake_up_common+0x147/0x650 [ 286.760731][ C0] __wake_up_common_lock+0xd0/0x130 [ 286.760744][ C0] ? __wake_up_common+0x650/0x650 [ 286.760756][ C0] ? rcu_read_lock_sched_held+0x3a/0x70 [ 286.760774][ C0] ? __send_signal_locked+0x39e/0x1060 [ 286.760793][ C0] do_notify_parent_cldstop+0x55e/0xa40 [ 286.760807][ C0] ? force_sigsegv+0x150/0x150 [ 286.760819][ C0] ? lock_release+0x780/0x780 [ 286.760830][ C0] ? ptrace_stop.part.0+0x2f1/0xa80 [ 286.760843][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 286.760856][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 286.760873][ C0] ptrace_stop.part.0+0x834/0xa80 [ 286.760887][ C0] ptrace_do_notify+0x215/0x2b0 [ 286.760899][ C0] ? ptrace_stop.part.0+0xa80/0xa80 [ 286.760913][ C0] ? _raw_spin_lock_irq+0x41/0x50 [ 286.760929][ C0] ptrace_notify+0xc4/0x140 [ 286.760941][ C0] syscall_exit_to_user_mode_prepare+0x129/0x280 [ 286.760957][ C0] syscall_exit_to_user_mode+0x9/0x50 [ 286.760971][ C0] do_syscall_64+0x42/0xb0 [ 286.760986][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.761001][ C0] RIP: 0033:0x7f61a3f6ba2a [ 286.761016][ C0] Code: 83 ff 03 74 3b 48 83 ec 28 b8 fa ff ff ff 83 ff 02 49 89 ca 0f 44 f8 64 8b 04 25 18 00 00 00 85 c0 75 2d b8 e6 00 00 00 0f 05 <89> c2 f7 da 3d 00 f0 ff ff b8 00 00 00 00 0f 47 c2 48 83 c4 28 c3 [ 286.761028][ C0] RSP: 002b:00007ffe328c3eb0 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6 [ 286.761040][ C0] RAX: 0000000000000000 RBX: 00007ffe328c3fa0 RCX: 00007f61a3f6ba2a [ 286.761049][ C0] RDX: 00007ffe328c3ef0 RSI: 0000000000000000 RDI: 0000000000000000 [ 286.761056][ C0] RBP: 0000000000045c0a R08: 000000000000011e R09: 00007ffe329bd080 [ 286.761065][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240 [ 286.761072][ C0] R13: 000000000000530b R14: 00007ffe328c3f90 R15: 00007ffe328c3f44 [ 286.761085][ C0] [ 286.761413][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 287.116545][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0 [ 287.126085][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 287.136133][ T28] Call Trace: [ 287.139402][ T28] [ 287.142323][ T28] dump_stack_lvl+0xcd/0x134 [ 287.146913][ T28] panic+0x2d7/0x636 [ 287.150800][ T28] ? panic_print_sys_info.part.0+0x10b/0x10b [ 287.156780][ T28] ? lapic_can_unplug_cpu+0x80/0x80 [ 287.161977][ T28] ? preempt_schedule_thunk+0x16/0x18 [ 287.167343][ T28] ? watchdog.cold+0x130/0x158 [ 287.172104][ T28] watchdog.cold+0x141/0x158 [ 287.176690][ T28] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 287.182672][ T28] kthread+0x2e9/0x3a0 [ 287.186734][ T28] ? kthread_complete_and_exit+0x40/0x40 [ 287.192367][ T28] ret_from_fork+0x1f/0x30 [ 287.196786][ T28] [ 287.200838][ T28] Kernel Offset: disabled [ 287.205380][ T28] Rebooting in 86400 seconds..