./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