./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2589209836 <...> [ 3.491888][ T99] udevd[99]: starting eudev-3.2.11 [ 3.494084][ T98] udevd (98) used greatest stack depth: 23312 bytes left [ 4.156915][ T122] touch (122) used greatest stack depth: 22960 bytes left [ 7.094034][ T108] udevd (108) used greatest stack depth: 22352 bytes left [ 10.727620][ T28] kauditd_printk_skb: 50 callbacks suppressed [ 10.727629][ T28] audit: type=1400 audit(1686415226.713:61): avc: denied { transition } for pid=222 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 10.736346][ T28] audit: type=1400 audit(1686415226.713:62): avc: denied { noatsecure } for pid=222 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 10.743219][ T28] audit: type=1400 audit(1686415226.713:63): avc: denied { write } for pid=222 comm="sh" path="pipe:[14107]" dev="pipefs" ino=14107 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 10.746208][ T28] audit: type=1400 audit(1686415226.713:64): avc: denied { rlimitinh } for pid=222 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 10.748816][ T28] audit: type=1400 audit(1686415226.713:65): avc: denied { siginh } for pid=222 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.232' (ECDSA) to the list of known hosts. execve("./syz-executor2589209836", ["./syz-executor2589209836"], 0x7fff3f05e9a0 /* 10 vars */) = 0 brk(NULL) = 0x555557364000 brk(0x555557364c40) = 0x555557364c40 arch_prctl(ARCH_SET_FS, 0x555557364300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 set_tid_address(0x5555573645d0) = 290 set_robust_list(0x5555573645e0, 24) = 0 rt_sigaction(SIGRTMIN, {sa_handler=0x7f562f36b220, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x7f562f36b8f0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f562f36b2c0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f562f36b8f0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2589209836", 4096) = 28 brk(0x555557385c40) = 0x555557385c40 brk(0x555557386000) = 0x555557386000 mprotect(0x7f562f42c000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 291 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 292 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 293 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 294 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 295 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 296 ./strace-static-x86_64: Process 296 attached ./strace-static-x86_64: Process 291 attached [pid 296] set_robust_list(0x5555573645e0, 24 [pid 291] set_robust_list(0x5555573645e0, 24 [pid 296] <... set_robust_list resumed>) = 0 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 291] <... set_robust_list resumed>) = 0 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 296] <... openat resumed>) = 3 [pid 291] <... openat resumed>) = 3 [pid 291] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 291] close(3) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [pid 296] close(3) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 299 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 300 ./strace-static-x86_64: Process 300 attached [pid 300] set_robust_list(0x5555573645e0, 24) = 0 [pid 300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] setpgid(0, 0) = 0 [pid 300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 300] write(3, "1000", 4) = 4 [pid 300] close(3) = 0 [pid 300] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 293 attached ./strace-static-x86_64: Process 292 attached ./strace-static-x86_64: Process 295 attached ./strace-static-x86_64: Process 294 attached [pid 293] set_robust_list(0x5555573645e0, 24 [pid 300] <... futex resumed>) = 0 [pid 300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 294] set_robust_list(0x5555573645e0, 24 [pid 300] <... mmap resumed>) = 0x7f562f33a000 [pid 300] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 299 attached [pid 295] set_robust_list(0x5555573645e0, 24 [pid 294] <... set_robust_list resumed>) = 0 [pid 293] <... set_robust_list resumed>) = 0 [pid 292] set_robust_list(0x5555573645e0, 24 [pid 295] <... set_robust_list resumed>) = 0 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 292] <... set_robust_list resumed>) = 0 [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 300] <... mprotect resumed>) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 293] <... openat resumed>) = 3 [pid 294] <... openat resumed>) = 3 [pid 292] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 294] ioctl(3, LOOP_CLR_FD [pid 293] ioctl(3, LOOP_CLR_FD [pid 292] ioctl(3, LOOP_CLR_FD [pid 295] ioctl(3, LOOP_CLR_FD [pid 294] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 293] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 292] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 299] set_robust_list(0x5555573645e0, 24 [pid 295] <... ioctl resumed>) = -1 ENXIO (No such device or address) [pid 300] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 299] <... set_robust_list resumed>) = 0 [pid 295] close(3 [pid 294] close(3 [pid 293] close(3 [pid 292] close(3 [pid 294] <... close resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 299] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 302 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 301 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 303 [pid 299] <... prctl resumed>) = 0 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 304 [pid 299] setpgid(0, 0) = 0 [pid 300] <... clone resumed>, parent_tid=[305], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 305 [pid 299] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 299] <... openat resumed>) = 3 [pid 299] write(3, "1000", 4) = 4 [pid 300] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 299] close(3) = 0 [pid 299] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 299] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 299] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[306], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 306 [pid 299] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 299] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 304 attached [pid 304] set_robust_list(0x5555573645e0, 24./strace-static-x86_64: Process 302 attached ) = 0 [pid 302] set_robust_list(0x5555573645e0, 24 [pid 304] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 302] <... set_robust_list resumed>) = 0 [pid 304] <... prctl resumed>) = 0 [pid 304] setpgid(0, 0 [pid 302] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 303 attached [pid 304] <... setpgid resumed>) = 0 [pid 302] <... prctl resumed>) = 0 [pid 304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 302] setpgid(0, 0./strace-static-x86_64: Process 306 attached [pid 304] <... openat resumed>) = 3 [pid 302] <... setpgid resumed>) = 0 [pid 304] write(3, "1000", 4 [pid 303] set_robust_list(0x5555573645e0, 24) = 0 [pid 304] <... write resumed>) = 4 [pid 302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 304] close(3) = 0 [pid 302] <... openat resumed>) = 3 [pid 304] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 303] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 306] set_robust_list(0x7f562f35a9e0, 24 [pid 302] write(3, "1000", 4./strace-static-x86_64: Process 305 attached ./strace-static-x86_64: Process 301 attached [pid 306] <... set_robust_list resumed>) = 0 [pid 304] <... futex resumed>) = 0 [pid 302] <... write resumed>) = 4 [pid 304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 302] close(3 [pid 303] <... prctl resumed>) = 0 [pid 303] setpgid(0, 0) = 0 [pid 303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 304] <... mmap resumed>) = 0x7f562f33a000 [pid 303] <... openat resumed>) = 3 [pid 302] <... close resumed>) = 0 [pid 306] memfd_create("syzkaller", 0 [pid 303] write(3, "1000", 4) = 4 [pid 303] close(3) = 0 [pid 303] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 304] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 302] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 304] <... mprotect resumed>) = 0 [pid 302] <... futex resumed>) = 0 [pid 306] <... memfd_create resumed>) = 3 [pid 303] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 303] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[307], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 307 [pid 303] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 303] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 304] clone(child_stack=0x7f562f35a3f0, 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 307 attached [pid 307] set_robust_list(0x7f562f35a9e0, 24 [pid 302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 306] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 304] <... clone resumed>, parent_tid=[308], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 308 [pid 301] set_robust_list(0x5555573645e0, 24 [pid 307] <... set_robust_list resumed>) = 0 [pid 302] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 304] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... mmap resumed>) = 0x7f5626f3a000 [pid 302] <... mprotect resumed>) = 0 [pid 307] memfd_create("syzkaller", 0) = 3 [pid 302] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 304] <... futex resumed>) = 0 [pid 307] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 304] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 302] <... clone resumed>, parent_tid=[309], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 309 [pid 301] <... set_robust_list resumed>) = 0 [pid 302] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 302] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 301] setpgid(0, 0 [pid 305] set_robust_list(0x7f562f35a9e0, 24./strace-static-x86_64: Process 308 attached [pid 308] set_robust_list(0x7f562f35a9e0, 24 [pid 301] <... setpgid resumed>) = 0 [pid 301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 305] <... set_robust_list resumed>) = 0 [pid 308] <... set_robust_list resumed>) = 0 [pid 308] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 309 attached [pid 309] set_robust_list(0x7f562f35a9e0, 24 [pid 301] write(3, "1000", 4) = 4 [pid 301] close(3 [pid 309] <... set_robust_list resumed>) = 0 [pid 305] memfd_create("syzkaller", 0 [pid 301] <... close resumed>) = 0 [pid 309] memfd_create("syzkaller", 0 [pid 301] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 305] <... memfd_create resumed>) = 3 [pid 301] <... futex resumed>) = 0 [pid 305] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 305] <... mmap resumed>) = 0x7f5626f3a000 [pid 308] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 301] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 309] <... memfd_create resumed>) = 3 [pid 309] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 301] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 309] <... mmap resumed>) = 0x7f5626f3a000 [pid 301] <... clone resumed>, parent_tid=[310], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 310 [pid 301] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 307] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 306] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [ 19.519220][ T28] audit: type=1400 audit(1686415235.503:66): avc: denied { execmem } for pid=290 comm="syz-executor258" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 19.523157][ T28] audit: type=1400 audit(1686415235.503:67): avc: denied { read write } for pid=296 comm="syz-executor258" name="loop5" dev="devtmpfs" ino=118 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 19.528002][ T28] audit: type=1400 audit(1686415235.503:68): avc: denied { open } for pid=296 comm="syz-executor258" path="/dev/loop5" dev="devtmpfs" ino=118 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 19.532257][ T28] audit: type=1400 audit(1686415235.503:69): avc: denied { ioctl } for pid=291 comm="syz-executor258" path="/dev/loop0" dev="devtmpfs" ino=113 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 305] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 310 attached [pid 310] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 310] memfd_create("syzkaller", 0) = 3 [pid 310] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 309] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 306] <... write resumed>) = 1048576 [pid 306] munmap(0x7f5626f3a000, 1048576 [pid 305] <... write resumed>) = 1048576 [pid 308] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 306] <... munmap resumed>) = 0 [pid 305] munmap(0x7f5626f3a000, 1048576 [pid 306] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 305] <... munmap resumed>) = 0 [pid 306] <... openat resumed>) = 4 [pid 305] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 306] ioctl(4, LOOP_SET_FD, 3 [pid 305] <... openat resumed>) = 4 [pid 309] <... write resumed>) = 1048576 [pid 310] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 307] <... write resumed>) = 1048576 [pid 307] munmap(0x7f5626f3a000, 1048576) = 0 [pid 307] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 307] ioctl(4, LOOP_SET_FD, 3 [pid 310] <... write resumed>) = 1048576 [pid 309] munmap(0x7f5626f3a000, 1048576 [pid 308] <... write resumed>) = 1048576 [pid 306] <... ioctl resumed>) = 0 [pid 305] ioctl(4, LOOP_SET_FD, 3 [pid 310] munmap(0x7f5626f3a000, 1048576 [pid 309] <... munmap resumed>) = 0 [pid 308] munmap(0x7f5626f3a000, 1048576 [pid 307] <... ioctl resumed>) = 0 [pid 306] close(3 [pid 307] close(3) = 0 [pid 307] mkdir("./file0", 0777 [pid 308] <... munmap resumed>) = 0 [pid 308] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 308] ioctl(4, LOOP_SET_FD, 3 [pid 310] <... munmap resumed>) = 0 [pid 309] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 307] <... mkdir resumed>) = 0 [pid 306] <... close resumed>) = 0 [pid 305] <... ioctl resumed>) = 0 [pid 310] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 309] <... openat resumed>) = 4 [pid 307] mount("/dev/loop1", "./file0", "ext4", 0, ",errors=continue" [pid 306] mkdir("./file0", 0777 [pid 305] close(3 [pid 310] <... openat resumed>) = 4 [pid 309] ioctl(4, LOOP_SET_FD, 3 [pid 308] <... ioctl resumed>) = 0 [pid 308] close(3) = 0 [pid 308] mkdir("./file0", 0777) = -1 EEXIST (File exists) [ 19.592217][ T306] loop0: detected capacity change from 0 to 2048 [ 19.598911][ T307] loop1: detected capacity change from 0 to 2048 [ 19.604419][ T305] loop5: detected capacity change from 0 to 2048 [ 19.607391][ T308] loop4: detected capacity change from 0 to 2048 [ 19.613815][ T28] audit: type=1400 audit(1686415235.593:70): avc: denied { mounton } for pid=303 comm="syz-executor258" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [pid 308] mount("/dev/loop4", "./file0", "ext4", 0, ",errors=continue" [pid 306] <... mkdir resumed>) = -1 EEXIST (File exists) [pid 305] <... close resumed>) = 0 [pid 305] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 305] mount("/dev/loop5", "./file0", "ext4", 0, ",errors=continue" [pid 310] ioctl(4, LOOP_SET_FD, 3 [pid 309] <... ioctl resumed>) = 0 [pid 306] mount("/dev/loop0", "./file0", "ext4", 0, ",errors=continue" [pid 309] close(3) = 0 [pid 309] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 309] mount("/dev/loop2", "./file0", "ext4", 0, ",errors=continue" [pid 310] <... ioctl resumed>) = 0 [pid 310] close(3) = 0 [pid 310] mkdir("./file0", 0777) = -1 EEXIST (File exists) [pid 310] mount("/dev/loop3", "./file0", "ext4", 0, ",errors=continue" [pid 305] <... mount resumed>) = 0 [pid 305] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 305] chdir("./file0") = 0 [pid 305] ioctl(4, LOOP_CLR_FD) = 0 [pid 305] close(4) = 0 [pid 305] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 305] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 308] <... mount resumed>) = 0 [pid 308] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 308] chdir("./file0") = 0 [pid 308] ioctl(4, LOOP_CLR_FD) = 0 [pid 308] close(4) = 0 [pid 308] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 304] <... futex resumed>) = 0 [pid 304] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 304] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 308] <... futex resumed>) = 1 [pid 308] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 300] <... futex resumed>) = 0 [pid 300] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 305] <... futex resumed>) = 0 [pid 300] <... futex resumed>) = 1 [ 19.640443][ T309] loop2: detected capacity change from 0 to 2048 [ 19.641937][ T310] loop3: detected capacity change from 0 to 2048 [ 19.658700][ T308] EXT4-fs (loop4): mounted filesystem without journal. Quota mode: none. [ 19.659006][ T305] EXT4-fs (loop5): mounted filesystem without journal. Quota mode: none. [ 19.667707][ T310] EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. [pid 305] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [ 19.683771][ T28] audit: type=1400 audit(1686415235.663:71): avc: denied { mount } for pid=300 comm="syz-executor258" name="/" dev="loop5" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 19.695025][ T307] EXT4-fs (loop1): mounted filesystem without journal. Quota mode: none. [ 19.716050][ T28] audit: type=1400 audit(1686415235.673:72): avc: denied { write } for pid=304 comm="syz-executor258" name="/" dev="loop4" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 19.716789][ T309] EXT4-fs (loop2): mounted filesystem without journal. Quota mode: none. [ 19.737985][ T28] audit: type=1400 audit(1686415235.673:73): avc: denied { add_name } for pid=304 comm="syz-executor258" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 19.746583][ T306] EXT4-fs (loop0): mounted filesystem without journal. Quota mode: none. [pid 300] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 308] <... open resumed>) = 4 [pid 307] <... mount resumed>) = 0 [pid 305] <... open resumed>) = 4 [pid 304] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 300] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 304] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 304] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 304] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 304] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[326], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 326 [pid 304] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 304] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 310] <... mount resumed>) = 0 [pid 310] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 310] chdir("./file0") = 0 [pid 310] ioctl(4, LOOP_CLR_FD) = 0 [pid 310] close(4) = 0 [pid 310] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... futex resumed>) = 0 [pid 301] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 310] <... futex resumed>) = 1 [pid 310] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 4 [pid 310] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... futex resumed>) = 0 [pid 301] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 310] <... futex resumed>) = 1 [pid 310] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 5 [pid 310] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... futex resumed>) = 0 [pid 301] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 310] <... futex resumed>) = 1 [pid 310] ftruncate(5, 33587195) = 0 [pid 310] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... futex resumed>) = 0 [pid 301] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 310] <... futex resumed>) = 1 [pid 310] sendfile(4, 5, NULL, 4) = 4 [pid 310] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... futex resumed>) = 0 [pid 301] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 310] <... futex resumed>) = 1 [pid 310] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0 [pid 308] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 305] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 308] <... futex resumed>) = 0 [pid 307] <... openat resumed>) = 3 [pid 308] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 307] chdir("./file0" [pid 305] <... futex resumed>) = 0 ./strace-static-x86_64: Process 326 attached [pid 326] set_robust_list(0x7f56270399e0, 24) = 0 [pid 326] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 307] <... chdir resumed>) = 0 [pid 305] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 326] <... open resumed>) = 5 [pid 326] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] ioctl(4, LOOP_CLR_FD [pid 304] <... futex resumed>) = 0 [pid 304] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 304] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 308] <... futex resumed>) = 0 [pid 307] <... ioctl resumed>) = 0 [pid 309] <... mount resumed>) = 0 [pid 326] <... futex resumed>) = 1 [pid 326] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 300] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 309] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 308] ftruncate(5, 33587195 [pid 307] close(4 [pid 305] <... futex resumed>) = 0 [pid 306] <... mount resumed>) = 0 [pid 300] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 309] <... openat resumed>) = 3 [pid 308] <... ftruncate resumed>) = 0 [pid 307] <... close resumed>) = 0 [pid 306] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY [pid 305] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 307] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] chdir("./file0" [pid 308] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] <... chdir resumed>) = 0 [pid 308] <... futex resumed>) = 1 [pid 307] <... futex resumed>) = 1 [pid 306] <... openat resumed>) = 3 [pid 305] <... open resumed>) = 5 [pid 304] <... futex resumed>) = 0 [pid 303] <... futex resumed>) = 0 [pid 304] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 303] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 304] <... futex resumed>) = 0 [pid 303] <... futex resumed>) = 0 [pid 304] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 303] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 309] ioctl(4, LOOP_CLR_FD [pid 308] sendfile(4, 5, NULL, 4 [pid 307] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 306] chdir("./file0" [pid 305] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] <... ioctl resumed>) = 0 [pid 308] <... sendfile resumed>) = 4 [pid 307] <... open resumed>) = 4 [pid 306] <... chdir resumed>) = 0 [pid 305] <... futex resumed>) = 1 [pid 305] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 300] <... futex resumed>) = 0 [pid 306] ioctl(4, LOOP_CLR_FD [pid 309] close(4 [pid 308] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 300] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 300] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 309] <... close resumed>) = 0 [pid 308] <... futex resumed>) = 1 [pid 307] <... futex resumed>) = 1 [pid 306] <... ioctl resumed>) = 0 [pid 305] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 304] <... futex resumed>) = 0 [pid 303] <... futex resumed>) = 0 [pid 304] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 303] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 304] <... futex resumed>) = 0 [pid 303] <... futex resumed>) = 0 [pid 304] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 303] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 309] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 306] close(4 [pid 305] ftruncate(5, 33587195 [pid 308] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0 [pid 309] <... futex resumed>) = 1 [pid 307] <... open resumed>) = 5 [pid 306] <... close resumed>) = 0 [pid 305] <... ftruncate resumed>) = 0 [pid 302] <... futex resumed>) = 0 [pid 309] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 307] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] <... futex resumed>) = 1 [pid 303] <... futex resumed>) = 0 [pid 302] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... futex resumed>) = 1 [pid 305] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 303] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... futex resumed>) = 0 [pid 299] <... futex resumed>) = 0 [pid 309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 307] ftruncate(5, 33587195 [pid 309] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 306] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 307] <... ftruncate resumed>) = 0 [pid 305] <... futex resumed>) = 1 [pid 303] <... futex resumed>) = 0 [pid 302] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 300] <... futex resumed>) = 0 [pid 299] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 305] sendfile(4, 5, NULL, 4 [pid 303] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 300] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] <... futex resumed>) = 0 [pid 307] <... futex resumed>) = 0 [pid 306] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 303] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 300] <... futex resumed>) = 0 [pid 307] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 305] <... sendfile resumed>) = 4 [pid 303] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 300] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 307] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 305] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 303] <... futex resumed>) = 0 [pid 300] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 307] sendfile(4, 5, NULL, 4 [pid 305] <... futex resumed>) = 0 [pid 303] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 300] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] <... sendfile resumed>) = 4 [pid 305] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0 [pid 300] <... futex resumed>) = 0 [pid 307] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 300] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 309] <... open resumed>) = 4 [pid 307] <... futex resumed>) = 1 [pid 306] <... open resumed>) = 4 [pid 303] <... futex resumed>) = 0 [pid 301] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 309] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 307] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 306] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 303] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] <... futex resumed>) = 1 [pid 307] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 306] <... futex resumed>) = 1 [pid 303] <... futex resumed>) = 0 [pid 302] <... futex resumed>) = 0 [pid 301] <... futex resumed>) = 0 [pid 299] <... futex resumed>) = 0 [pid 309] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 307] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0 [pid 306] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 303] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 299] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 302] <... futex resumed>) = 0 [pid 301] <... mmap resumed>) = 0x7f5627019000 [pid 299] <... futex resumed>) = 0 [pid 309] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 306] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 302] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 301] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 299] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 309] <... open resumed>) = 5 [pid 306] <... open resumed>) = 5 [pid 301] <... mprotect resumed>) = 0 [pid 309] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 309] <... futex resumed>) = 1 [pid 306] <... futex resumed>) = 1 [pid 302] <... futex resumed>) = 0 [pid 299] <... futex resumed>) = 0 [pid 309] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 306] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 302] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... clone resumed>, parent_tid=[328], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 328 [pid 299] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 302] <... futex resumed>) = 0 [pid 301] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] <... futex resumed>) = 0 [pid 309] ftruncate(5, 33587195 [pid 306] ftruncate(5, 33587195 [pid 302] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 301] <... futex resumed>) = 0 [pid 299] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 309] <... ftruncate resumed>) = 0 [pid 306] <... ftruncate resumed>) = 0 [pid 301] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 309] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] <... futex resumed>) = 1 [pid 306] <... futex resumed>) = 1 [pid 302] <... futex resumed>) = 0 [pid 299] <... futex resumed>) = 0 [pid 309] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 306] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 302] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 302] <... futex resumed>) = 0 [pid 299] <... futex resumed>) = 0 [ 19.766814][ T28] audit: type=1400 audit(1686415235.673:74): avc: denied { create } for pid=304 comm="syz-executor258" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 19.795983][ T28] audit: type=1400 audit(1686415235.673:75): avc: denied { read write open } for pid=304 comm="syz-executor258" path="/root/file0/bus" dev="loop4" ino=18 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [pid 309] sendfile(4, 5, NULL, 4 [pid 306] sendfile(4, 5, NULL, 4 [pid 302] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 328 attached [pid 309] <... sendfile resumed>) = 4 [pid 328] set_robust_list(0x7f56270399e0, 24 [pid 309] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 306] <... sendfile resumed>) = 4 [pid 309] <... futex resumed>) = 1 [pid 306] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 302] <... futex resumed>) = 0 [pid 309] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 306] <... futex resumed>) = 1 [pid 302] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] <... futex resumed>) = 0 [pid 309] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 306] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 309] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0 [pid 306] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 302] <... futex resumed>) = 0 [pid 299] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 328] <... set_robust_list resumed>) = 0 [pid 328] madvise(0x20000000, 6291467, MADV_REMOVE [pid 306] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 5, 0 [pid 302] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] <... futex resumed>) = 0 [pid 304] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 304] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 304] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 304] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 326] <... futex resumed>) = 0 [pid 304] <... futex resumed>) = 1 [pid 326] madvise(0x20000000, 6291467, MADV_REMOVE [pid 304] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 299] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 300] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 300] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 300] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 300] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[329], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 329 [pid 300] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 300] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 329 attached [pid 329] set_robust_list(0x7f56270399e0, 24) = 0 [ 19.861139][ T328] EXT4-fs error (device loop3): ext4_mb_generate_buddy:1098: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [ 19.883414][ T326] EXT4-fs error (device loop4): ext4_mb_generate_buddy:1098: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [pid 329] madvise(0x20000000, 6291467, MADV_REMOVE [pid 326] <... madvise resumed>) = -1 ENOSPC (No space left on device) [pid 303] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 301] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 303] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] futex(0x7f562f43270c, FUTEX_WAKE_PRIVATE, 1000000 [pid 303] <... futex resumed>) = 0 [pid 301] <... futex resumed>) = 0 [pid 303] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 326] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 303] <... mmap resumed>) = 0x7f5627019000 [pid 301] <... mmap resumed>) = 0x7f5626ff8000 [pid 303] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 301] mprotect(0x7f5626ff9000, 131072, PROT_READ|PROT_WRITE [pid 303] <... mprotect resumed>) = 0 [pid 301] <... mprotect resumed>) = 0 [pid 304] <... futex resumed>) = 0 [pid 326] <... futex resumed>) = 1 [pid 303] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 301] clone(child_stack=0x7f56270183f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 304] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 326] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000000} --- [pid 304] <... futex resumed>) = 0 [pid 303] <... clone resumed>, parent_tid=[331], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 331 [pid 301] <... clone resumed>, parent_tid=[330], tls=0x7f5627018700, child_tidptr=0x7f56270189d0) = 330 [pid 304] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 303] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] futex(0x7f562f432708, FUTEX_WAKE_PRIVATE, 1000000 [pid 303] <... futex resumed>) = 0 [pid 301] <... futex resumed>) = 0 [pid 303] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 301] futex(0x7f562f43270c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 304] <... futex resumed>) = ? ./strace-static-x86_64: Process 331 attached [pid 308] <... mmap resumed>) = ? [pid 326] +++ killed by SIGBUS +++ [pid 308] +++ killed by SIGBUS +++ [pid 304] +++ killed by SIGBUS +++ [pid 331] set_robust_list(0x7f56270399e0, 24./strace-static-x86_64: Process 330 attached [pid 330] set_robust_list(0x7f56270189e0, 24) = 0 [pid 331] <... set_robust_list resumed>) = 0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=304, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=9} --- [pid 331] madvise(0x20000000, 6291467, MADV_REMOVE [pid 295] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 302] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 295] ioctl(3, LOOP_CLR_FD [pid 302] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... ioctl resumed>) = 0 [pid 302] <... futex resumed>) = 0 [pid 295] close(3 [pid 302] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 295] <... close resumed>) = 0 [pid 302] <... mmap resumed>) = 0x7f5627019000 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 302] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 332 [pid 302] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[333], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 333 [pid 302] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 302] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 333 attached ./strace-static-x86_64: Process 332 attached [pid 333] set_robust_list(0x7f56270399e0, 24 [pid 332] set_robust_list(0x5555573645e0, 24 [pid 299] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 333] <... set_robust_list resumed>) = 0 [pid 332] <... set_robust_list resumed>) = 0 [pid 332] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 299] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 333] madvise(0x20000000, 6291467, MADV_REMOVE [pid 299] <... futex resumed>) = 0 [pid 332] <... prctl resumed>) = 0 [pid 299] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 332] setpgid(0, 0) = 0 [pid 299] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [ 19.904543][ T329] EXT4-fs error (device loop5): ext4_mb_generate_buddy:1098: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [pid 299] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 332] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 300] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 300] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 300] futex(0x7f562f43270c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 300] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5626ff8000 [pid 300] mprotect(0x7f5626ff9000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 300] clone(child_stack=0x7f56270183f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[335], tls=0x7f5627018700, child_tidptr=0x7f56270189d0) = 335 [pid 300] futex(0x7f562f432708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 300] futex(0x7f562f43270c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 330] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 6 [pid 330] futex(0x7f562f43270c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 301] <... futex resumed>) = 0 [pid 330] futex(0x7f562f432708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 328] <... madvise resumed>) = -1 ENOSPC (No space left on device) [pid 328] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 328] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 335 attached [pid 335] set_robust_list(0x7f56270189e0, 24) = 0 [pid 331] <... madvise resumed>) = -1 ENOSPC (No space left on device) [pid 331] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] <... clone resumed>, parent_tid=[334], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 334 [pid 332] <... openat resumed>) = 3 [pid 331] <... futex resumed>) = 1 [pid 299] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 303] <... futex resumed>) = 0 [pid 303] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 303] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 331] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000000} --- [pid 299] <... futex resumed>) = 0 [pid 332] write(3, "1000", 4 [pid 299] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 332] <... write resumed>) = 4 [pid 332] close(3) = 0 [pid 332] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 332] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 332] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[336], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 336 [pid 332] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 332] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 303] <... futex resumed>) = ? [pid 331] +++ killed by SIGBUS +++ [pid 307] <... mmap resumed>) = ? [pid 307] +++ killed by SIGBUS +++ [pid 303] +++ killed by SIGBUS +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=303, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=4} --- [pid 292] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 292] ioctl(3, LOOP_CLR_FD) = 0 [pid 292] close(3./strace-static-x86_64: Process 334 attached ) = 0 [pid 334] set_robust_list(0x7f56270399e0, 24 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 334] <... set_robust_list resumed>) = 0 [pid 334] madvise(0x20000000, 6291467, MADV_REMOVE [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 337 ./strace-static-x86_64: Process 336 attached [pid 336] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 336] memfd_create("syzkaller", 0) = 3 [pid 336] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 337 attached [pid 337] set_robust_list(0x5555573645e0, 24 [pid 334] <... madvise resumed>) = -1 ENOSPC (No space left on device) [pid 333] <... madvise resumed>) = -1 ENOSPC (No space left on device) [pid 337] <... set_robust_list resumed>) = 0 [pid 334] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 333] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 337] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 334] <... futex resumed>) = 1 [pid 333] <... futex resumed>) = 1 [pid 302] <... futex resumed>) = 0 [pid 299] <... futex resumed>) = 0 [pid 337] <... prctl resumed>) = 0 [pid 334] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 333] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000000} --- [pid 302] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 299] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 337] setpgid(0, 0 [pid 334] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 299] <... futex resumed>) = 0 [pid 337] <... setpgid resumed>) = 0 [pid 335] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 334] --- SIGBUS {si_signo=SIGBUS, si_code=BUS_ADRERR, si_addr=0x20000000} --- [pid 299] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 335] <... openat resumed>) = 6 [pid 335] futex(0x7f562f43270c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 300] <... futex resumed>) = 0 [pid 337] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 335] futex(0x7f562f432708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] <... openat resumed>) = 3 [pid 302] <... futex resumed>) = ? [pid 329] <... madvise resumed>) = -1 ENOSPC (No space left on device) [pid 329] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 329] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 309] <... mmap resumed>) = ? [pid 337] write(3, "1000", 4 [pid 309] +++ killed by SIGBUS +++ [pid 337] <... write resumed>) = 4 [ 19.950653][ T333] EXT4-fs error (device loop0): ext4_mb_generate_buddy:1098: group 0, block bitmap and bg descriptor inconsistent: 25 vs 150994969 free clusters [pid 337] close(3 [pid 299] <... futex resumed>) = ? [pid 306] <... mmap resumed>) = ? [pid 306] +++ killed by SIGBUS +++ [pid 337] <... close resumed>) = 0 [pid 334] +++ killed by SIGBUS +++ [pid 299] +++ killed by SIGBUS +++ [pid 337] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 333] +++ killed by SIGBUS +++ [pid 302] +++ killed by SIGBUS +++ [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=299, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=3} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=302, si_uid=0, si_status=SIGBUS, si_utime=0, si_stime=7} --- [pid 337] <... futex resumed>) = 0 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 291] restart_syscall(<... resuming interrupted clone ...> [pid 337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 291] <... restart_syscall resumed>) = 0 [pid 337] <... mmap resumed>) = 0x7f562f33a000 [pid 336] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 337] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 293] <... openat resumed>) = 3 [pid 291] <... openat resumed>) = 3 [pid 337] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 293] ioctl(3, LOOP_CLR_FD [pid 291] ioctl(3, LOOP_CLR_FD [pid 293] <... ioctl resumed>) = 0 [pid 291] <... ioctl resumed>) = 0 [pid 337] <... clone resumed>, parent_tid=[338], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 338 [pid 337] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] close(3 [pid 291] close(3./strace-static-x86_64: Process 338 attached [pid 337] <... futex resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 291] <... close resumed>) = 0 [pid 338] set_robust_list(0x7f562f35a9e0, 24 [pid 337] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 338] <... set_robust_list resumed>) = 0 [pid 338] memfd_create("syzkaller", 0 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 339 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 340 [pid 338] <... memfd_create resumed>) = 3 [pid 338] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 336] <... write resumed>) = 1048576 [pid 336] munmap(0x7f5626f3a000, 1048576) = 0 [pid 338] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 336] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 336] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 336] ioctl(4, LOOP_CLR_FD) = 0 [pid 336] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 336] close(4) = 0 [pid 336] close(3) = 0 ./strace-static-x86_64: Process 340 attached ./strace-static-x86_64: Process 339 attached [pid 338] <... write resumed>) = 1048576 [pid 338] munmap(0x7f5626f3a000, 1048576 [pid 336] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 340] set_robust_list(0x5555573645e0, 24 [pid 336] <... futex resumed>) = 1 [pid 336] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 332] <... futex resumed>) = 0 [pid 332] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 336] <... futex resumed>) = 0 [pid 332] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 340] <... set_robust_list resumed>) = 0 [pid 339] set_robust_list(0x5555573645e0, 24 [pid 338] <... munmap resumed>) = 0 [pid 336] <... open resumed>) = 3 [pid 336] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 332] <... futex resumed>) = 0 [pid 332] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 332] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] <... futex resumed>) = 1 [pid 340] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 339] <... set_robust_list resumed>) = 0 [pid 338] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 336] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 338] <... openat resumed>) = 4 [pid 336] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 332] <... futex resumed>) = 0 [pid 332] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 332] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 336] <... futex resumed>) = 1 [pid 336] ftruncate(4, 33587195) = 0 [pid 340] <... prctl resumed>) = 0 [pid 339] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 338] ioctl(4, LOOP_SET_FD, 3 [pid 336] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 332] <... futex resumed>) = 0 [pid 332] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 332] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 340] setpgid(0, 0 [pid 339] <... prctl resumed>) = 0 [pid 338] ioctl(4, LOOP_CLR_FD [pid 336] <... futex resumed>) = 1 [pid 336] sendfile(3, 4, NULL, 4 [pid 339] setpgid(0, 0 [pid 338] <... ioctl resumed>) = 0 [pid 340] <... setpgid resumed>) = 0 [pid 340] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 339] <... setpgid resumed>) = 0 [pid 336] <... sendfile resumed>) = 4 [pid 310] <... mmap resumed>) = 0x20000000 [pid 340] <... openat resumed>) = 3 [pid 339] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 336] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 310] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 340] write(3, "1000", 4 [pid 339] <... openat resumed>) = 3 [pid 336] <... futex resumed>) = 1 [pid 332] <... futex resumed>) = 0 [pid 310] <... futex resumed>) = 0 [pid 340] <... write resumed>) = 4 [pid 339] write(3, "1000", 4 [pid 338] ioctl(4, LOOP_SET_FD, 3 [pid 336] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 332] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 310] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 340] close(3 [pid 339] <... write resumed>) = 4 [pid 338] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 336] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 332] <... futex resumed>) = 0 [pid 301] exit_group(0 [pid 340] <... close resumed>) = 0 [pid 339] close(3 [pid 338] close(4 [pid 336] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 332] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 310] <... futex resumed>) = ? [pid 301] <... exit_group resumed>) = ? [pid 328] <... futex resumed>) = ? [pid 330] <... futex resumed>) = ? [pid 340] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 339] <... close resumed>) = 0 [pid 338] <... close resumed>) = 0 [pid 310] +++ exited with 0 +++ [pid 340] <... futex resumed>) = 0 [pid 339] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] close(3 [pid 340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 339] <... futex resumed>) = 0 [pid 338] <... close resumed>) = 0 [pid 328] +++ exited with 0 +++ [pid 340] <... mmap resumed>) = 0x7f562f33a000 [pid 339] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 338] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 340] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 339] <... mmap resumed>) = 0x7f562f33a000 [pid 338] <... futex resumed>) = 1 [pid 337] <... futex resumed>) = 0 [pid 340] <... mprotect resumed>) = 0 [pid 339] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 338] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 340] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 339] <... mprotect resumed>) = 0 [pid 338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] <... futex resumed>) = 0 [pid 339] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 338] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 337] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 340] <... clone resumed>, parent_tid=[341], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 341 [pid 338] <... open resumed>) = 3 [pid 340] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 339] <... clone resumed>, parent_tid=[342], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 342 [pid 338] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 330] +++ exited with 0 +++ [pid 301] +++ exited with 0 +++ [pid 340] <... futex resumed>) = 0 [pid 339] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = 1 [pid 337] <... futex resumed>) = 0 [pid 340] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 339] <... futex resumed>) = 0 [pid 338] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=301, si_uid=0, si_status=0, si_utime=0, si_stime=9} --- [pid 339] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] <... futex resumed>) = 0 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 338] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 337] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... restart_syscall resumed>) = 0 [pid 338] <... open resumed>) = 4 [pid 338] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 337] <... futex resumed>) = 0 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 338] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... openat resumed>) = 3 [pid 338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] <... futex resumed>) = 0 [pid 294] ioctl(3, LOOP_CLR_FD [pid 338] ftruncate(4, 33587195 [pid 337] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... ioctl resumed>) = 0 [pid 338] <... ftruncate resumed>) = 0 [pid 294] close(3 [pid 338] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... close resumed>) = 0 [pid 338] <... futex resumed>) = 1 [pid 337] <... futex resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 338] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] <... futex resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 343 [pid 338] sendfile(3, 4, NULL, 4 [pid 337] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 341 attached [pid 338] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 341] set_robust_list(0x7f562f35a9e0, 24 [pid 338] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... set_robust_list resumed>) = 0 [pid 338] <... futex resumed>) = 1 [pid 337] <... futex resumed>) = 0 [pid 341] memfd_create("syzkaller", 0 [pid 338] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 337] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... memfd_create resumed>) = 3 [pid 338] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 337] <... futex resumed>) = 0 [pid 341] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 338] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 337] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] <... mmap resumed>) = 0x7f5626f3a000 ./strace-static-x86_64: Process 343 attached [pid 343] set_robust_list(0x5555573645e0, 24) = 0 [pid 343] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 343] setpgid(0, 0) = 0 [pid 343] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 343] write(3, "1000", 4) = 4 [pid 343] close(3) = 0 [pid 343] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 343] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 343] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 341] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 343] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[344], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 344 [pid 343] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 343] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 344 attached [pid 344] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 344] memfd_create("syzkaller", 0) = 3 [pid 344] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 342 attached [pid 342] set_robust_list(0x7f562f35a9e0, 24 [pid 341] <... write resumed>) = 1048576 [pid 342] <... set_robust_list resumed>) = 0 [pid 342] memfd_create("syzkaller", 0) = 3 [pid 341] munmap(0x7f5626f3a000, 1048576 [pid 342] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 341] <... munmap resumed>) = 0 [pid 342] <... mmap resumed>) = 0x7f5626f3a000 [pid 341] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 344] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 341] <... openat resumed>) = 4 [pid 341] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 341] ioctl(4, LOOP_CLR_FD) = 0 [pid 341] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 341] close(4) = 0 [pid 341] close(3) = 0 [pid 341] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 340] <... futex resumed>) = 0 [pid 340] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 332] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 340] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 332] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 341] <... futex resumed>) = 1 [pid 332] <... mmap resumed>) = 0x7f5627019000 [pid 341] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 332] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 341] <... open resumed>) = 3 [pid 332] <... mprotect resumed>) = 0 [pid 341] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 332] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 341] <... futex resumed>) = 1 [pid 340] <... futex resumed>) = 0 [pid 341] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 340] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 332] <... clone resumed>, parent_tid=[345], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 345 [pid 341] <... open resumed>) = 4 [pid 340] <... futex resumed>) = 0 [pid 332] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 340] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 332] <... futex resumed>) = 0 [pid 344] <... write resumed>) = 1048576 [pid 341] <... futex resumed>) = 0 [pid 340] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 332] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] ftruncate(4, 33587195 [pid 340] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 340] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 345 attached [pid 345] set_robust_list(0x7f56270399e0, 24) = 0 [pid 341] <... ftruncate resumed>) = 0 [pid 341] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 340] <... futex resumed>) = 0 [pid 341] sendfile(3, 4, NULL, 4 [pid 340] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 340] <... futex resumed>) = 0 [pid 341] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 340] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] <... futex resumed>) = 0 [pid 340] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 341] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 340] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 340] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 345] madvise(0x20000000, 6291467, MADV_REMOVE [pid 344] munmap(0x7f5626f3a000, 1048576) = 0 [pid 344] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 337] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 337] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 337] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 342] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 344] <... openat resumed>) = 4 [pid 344] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 344] ioctl(4, LOOP_CLR_FD) = 0 [pid 344] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 344] close(4) = 0 [pid 344] close(3) = 0 [pid 342] <... write resumed>) = 1048576 [pid 344] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 343] <... futex resumed>) = 0 [pid 343] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 343] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 344] <... futex resumed>) = 1 [pid 342] munmap(0x7f5626f3a000, 1048576 [pid 344] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 344] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] <... munmap resumed>) = 0 [pid 344] <... futex resumed>) = 1 [pid 343] <... futex resumed>) = 0 [pid 342] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 344] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 343] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... open resumed>) = 4 [pid 343] <... futex resumed>) = 0 [pid 342] <... openat resumed>) = 4 [pid 344] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 343] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 342] ioctl(4, LOOP_SET_FD, 3 [pid 344] <... futex resumed>) = 0 [pid 343] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 342] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 344] ftruncate(4, 33587195 [pid 343] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] ioctl(4, LOOP_CLR_FD [pid 343] <... futex resumed>) = 0 [pid 342] <... ioctl resumed>) = 0 [pid 343] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 342] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 342] close(4) = 0 [pid 342] close(3) = 0 [pid 342] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 339] <... futex resumed>) = 0 [pid 342] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL) = -1 EAGAIN (Resource temporarily unavailable) [pid 339] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 339] <... futex resumed>) = 0 [pid 339] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 342] <... open resumed>) = 3 [pid 342] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 339] <... futex resumed>) = 0 [pid 339] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 342] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 339] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 342] <... open resumed>) = 4 [pid 342] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 339] <... futex resumed>) = 0 [pid 342] ftruncate(4, 33587195 [pid 339] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 339] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 337] <... mmap resumed>) = 0x7f5627019000 [pid 337] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 337] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 332] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 337] <... clone resumed>, parent_tid=[346], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 346 [pid 337] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 332] futex(0x7f562f43270c, FUTEX_WAKE_PRIVATE, 1000000 [pid 337] <... futex resumed>) = 0 [pid 332] <... futex resumed>) = 0 [pid 337] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 332] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5626ff8000 [pid 332] mprotect(0x7f5626ff9000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 332] clone(child_stack=0x7f56270183f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[347], tls=0x7f5627018700, child_tidptr=0x7f56270189d0) = 347 [pid 332] futex(0x7f562f432708, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 340] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 332] futex(0x7f562f43270c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 340] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 340] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 340] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 340] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[348], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 348 [pid 340] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 340] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 347 attached [pid 345] <... madvise resumed>) = 0 [pid 347] set_robust_list(0x7f56270189e0, 24) = 0 [pid 344] <... ftruncate resumed>) = 0 [pid 344] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 343] <... futex resumed>) = 0 [pid 342] <... ftruncate resumed>) = 0 [pid 345] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 343] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 345] <... futex resumed>) = 0 [pid 344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 343] <... futex resumed>) = 0 [pid 338] <... mmap resumed>) = 0x20000000 [pid 336] <... mmap resumed>) = 0x20000000 [pid 347] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 345] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 344] sendfile(3, 4, NULL, 4 [pid 343] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 342] <... futex resumed>) = 1 [pid 339] <... futex resumed>) = 0 [pid 338] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 336] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 347] <... openat resumed>) = 5 [pid 342] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 341] <... mmap resumed>) = 0x20000000 [pid 339] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = 0 [pid 336] <... futex resumed>) = 0 [pid 347] futex(0x7f562f43270c, FUTEX_WAKE_PRIVATE, 1000000 [pid 344] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 342] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 341] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 339] <... futex resumed>) = 0 [pid 338] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 336] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 347] <... futex resumed>) = 1 [pid 344] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] sendfile(3, 4, NULL, 4 [pid 341] <... futex resumed>) = 0 [pid 339] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 332] <... futex resumed>) = 0 [pid 347] futex(0x7f562f432708, FUTEX_WAIT_PRIVATE, 0, NULL [pid 344] <... futex resumed>) = 1 [pid 343] <... futex resumed>) = 0 [pid 342] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 341] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 332] exit_group(0 [pid 347] <... futex resumed>) = ? [pid 345] <... futex resumed>) = ? [pid 344] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 343] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 336] <... futex resumed>) = ? [pid 332] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 348 attached [pid 347] +++ exited with 0 +++ [pid 345] +++ exited with 0 +++ [pid 344] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 343] <... futex resumed>) = 0 [pid 342] <... futex resumed>) = 1 [pid 339] <... futex resumed>) = 0 [pid 336] +++ exited with 0 +++ [pid 348] set_robust_list(0x7f56270399e0, 24 [pid 344] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 343] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 348] <... set_robust_list resumed>) = 0 [pid 342] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 339] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 332] +++ exited with 0 +++ [pid 348] madvise(0x20000000, 6291467, MADV_REMOVE [pid 342] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 339] <... futex resumed>) = 0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=332, si_uid=0, si_status=0, si_utime=0, si_stime=7} --- [pid 342] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 339] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 346 attached [pid 346] set_robust_list(0x7f56270399e0, 24 [pid 295] <... restart_syscall resumed>) = 0 [pid 346] <... set_robust_list resumed>) = 0 [pid 346] madvise(0x20000000, 6291467, MADV_REMOVE [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 295] ioctl(3, LOOP_CLR_FD) = 0 [pid 295] close(3) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 349 ./strace-static-x86_64: Process 349 attached [pid 349] set_robust_list(0x5555573645e0, 24) = 0 [pid 349] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 349] setpgid(0, 0) = 0 [pid 349] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 349] write(3, "1000", 4) = 4 [pid 349] close(3) = 0 [pid 349] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 349] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 349] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[350], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 350 [pid 349] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 349] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 337] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 337] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 337] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = 0 [pid 337] <... futex resumed>) = 1 [pid 337] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 300] exit_group(0./strace-static-x86_64: Process 350 attached [pid 335] <... futex resumed>) = ? [pid 329] <... futex resumed>) = ? [pid 305] <... mmap resumed>) = ? [pid 300] <... exit_group resumed>) = ? [pid 335] +++ exited with 0 +++ [pid 329] +++ exited with 0 +++ [pid 350] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 350] memfd_create("syzkaller", 0) = 3 [pid 350] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 338] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5 [pid 340] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 338] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 340] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] <... futex resumed>) = 1 [pid 337] <... futex resumed>) = 0 [pid 341] <... futex resumed>) = 0 [pid 340] <... futex resumed>) = 1 [pid 338] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 341] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 340] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 341] <... openat resumed>) = 5 [pid 341] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 340] <... futex resumed>) = 0 [pid 341] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 305] +++ exited with 0 +++ [pid 300] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=300, si_uid=0, si_status=0, si_utime=0, si_stime=18} --- [pid 348] <... madvise resumed>) = 0 [pid 350] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 344] <... mmap resumed>) = 0x20000000 [pid 342] <... mmap resumed>) = 0x20000000 [pid 348] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 346] <... madvise resumed>) = 0 [pid 342] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 348] <... futex resumed>) = 0 [pid 346] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] <... futex resumed>) = 1 [pid 339] <... futex resumed>) = 0 [pid 348] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 346] <... futex resumed>) = 0 [pid 342] madvise(0x20000000, 6291467, MADV_REMOVE [pid 340] exit_group(0 [pid 339] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 337] exit_group(0 [pid 348] <... futex resumed>) = ? [pid 344] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] <... madvise resumed>) = 0 [pid 341] <... futex resumed>) = ? [pid 340] <... exit_group resumed>) = ? [pid 339] <... futex resumed>) = 0 [pid 338] <... futex resumed>) = ? [pid 337] <... exit_group resumed>) = ? [pid 350] <... write resumed>) = 1048576 [pid 348] +++ exited with 0 +++ [pid 346] +++ exited with 0 +++ [pid 344] <... futex resumed>) = 1 [pid 342] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 341] +++ exited with 0 +++ [pid 339] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 350] munmap(0x7f5626f3a000, 1048576 [pid 344] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 342] <... futex resumed>) = 0 [pid 339] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 296] <... openat resumed>) = 3 [pid 350] <... munmap resumed>) = 0 [pid 343] <... futex resumed>) = 0 [pid 342] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 340] +++ exited with 0 +++ [pid 339] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 338] +++ exited with 0 +++ [pid 296] ioctl(3, LOOP_CLR_FD [pid 350] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 342] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 339] <... futex resumed>) = 0 [pid 296] <... ioctl resumed>) = 0 [pid 350] <... openat resumed>) = 4 [pid 342] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 339] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] close(3 [pid 350] ioctl(4, LOOP_SET_FD, 3 [pid 343] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 342] <... openat resumed>) = 5 [pid 337] +++ exited with 0 +++ [pid 296] <... close resumed>) = 0 [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=340, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 343] <... futex resumed>) = 1 [pid 343] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=337, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 292] <... openat resumed>) = 3 [pid 291] <... openat resumed>) = 3 [pid 292] ioctl(3, LOOP_CLR_FD [pid 291] ioctl(3, LOOP_CLR_FD [pid 292] <... ioctl resumed>) = 0 [pid 291] <... ioctl resumed>) = 0 [pid 292] close(3 [pid 291] close(3 [pid 292] <... close resumed>) = 0 [pid 291] <... close resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 351 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 352 ./strace-static-x86_64: Process 352 attached [pid 352] set_robust_list(0x5555573645e0, 24) = 0 [pid 352] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 342] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 339] <... futex resumed>) = 0 [pid 342] <... futex resumed>) = 1 [pid 342] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 339] exit_group(0 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 353 [pid 342] <... futex resumed>) = ? [pid 339] <... exit_group resumed>) = ? [pid 352] setpgid(0, 0) = 0 [pid 352] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 352] write(3, "1000", 4) = 4 [pid 352] close(3) = 0 [pid 342] +++ exited with 0 +++ [pid 339] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=339, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 293] ioctl(3, LOOP_CLR_FD [pid 344] <... futex resumed>) = 0 [pid 293] <... ioctl resumed>) = 0 [pid 344] madvise(0x20000000, 6291467, MADV_REMOVE [pid 293] close(3) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 354 [pid 352] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 344] <... madvise resumed>) = 0 [pid 352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 352] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 344] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 351 attached [pid 352] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 344] <... futex resumed>) = 1 [pid 343] <... futex resumed>) = 0 [pid 351] set_robust_list(0x5555573645e0, 24 [pid 343] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 352] <... clone resumed>, parent_tid=[355], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 355 [pid 351] <... set_robust_list resumed>) = 0 [pid 350] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 344] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 343] <... futex resumed>) = 0 [pid 352] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 351] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 350] ioctl(4, LOOP_CLR_FD [pid 344] <... openat resumed>) = 5 [pid 343] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 352] <... futex resumed>) = 0 [pid 351] <... prctl resumed>) = 0 [pid 350] <... ioctl resumed>) = 0 [pid 344] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 352] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 351] setpgid(0, 0) = 0 [pid 351] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 344] <... futex resumed>) = 1 [pid 343] <... futex resumed>) = 0 [pid 351] <... openat resumed>) = 3 [pid 344] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 343] exit_group(0 [pid 351] write(3, "1000", 4 [pid 344] <... futex resumed>) = ? [pid 343] <... exit_group resumed>) = ? [pid 351] <... write resumed>) = 4 [pid 351] close(3) = 0 [pid 351] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 351] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 351] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 351] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[356], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 356 ./strace-static-x86_64: Process 354 attached [pid 351] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 354] set_robust_list(0x5555573645e0, 24 [pid 351] <... futex resumed>) = 0 [pid 354] <... set_robust_list resumed>) = 0 [pid 351] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 354] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 354] setpgid(0, 0) = 0 [pid 354] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 354] write(3, "1000", 4 [pid 350] ioctl(4, LOOP_SET_FD, 3 [pid 354] <... write resumed>) = 4 [pid 354] close(3) = 0 [pid 354] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 354] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 350] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 344] +++ exited with 0 +++ [pid 343] +++ exited with 0 +++ [pid 354] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 350] close(4 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=343, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 354] <... mprotect resumed>) = 0 [pid 350] <... close resumed>) = 0 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 354] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 350] close(3 [pid 294] <... restart_syscall resumed>) = 0 [pid 354] <... clone resumed>, parent_tid=[357], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 357 [pid 354] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 354] <... futex resumed>) = 0 [pid 294] <... openat resumed>) = 3 [pid 354] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 294] ioctl(3, LOOP_CLR_FD) = 0 [pid 294] close(3) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 356 attached [pid 350] <... close resumed>) = 0 [pid 356] set_robust_list(0x7f562f35a9e0, 24 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 358 [pid 356] <... set_robust_list resumed>) = 0 [pid 356] memfd_create("syzkaller", 0) = 3 [pid 356] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 350] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 356] <... mmap resumed>) = 0x7f5626f3a000 [pid 350] <... futex resumed>) = 1 [pid 349] <... futex resumed>) = 0 [pid 350] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 349] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 353 attached [pid 350] <... open resumed>) = 3 [pid 349] <... futex resumed>) = 0 ./strace-static-x86_64: Process 358 attached [pid 356] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 353] set_robust_list(0x5555573645e0, 24 [pid 350] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 349] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 355 attached [pid 358] set_robust_list(0x5555573645e0, 24 [pid 353] <... set_robust_list resumed>) = 0 [pid 350] <... futex resumed>) = 0 [pid 349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 358] <... set_robust_list resumed>) = 0 [pid 355] set_robust_list(0x7f562f35a9e0, 24 [pid 353] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 350] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 349] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 358] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 355] <... set_robust_list resumed>) = 0 [pid 353] <... prctl resumed>) = 0 [pid 350] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 349] <... futex resumed>) = 0 [pid 358] <... prctl resumed>) = 0 [pid 350] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 349] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 353] setpgid(0, 0 [pid 355] memfd_create("syzkaller", 0 [pid 353] <... setpgid resumed>) = 0 [pid 350] <... open resumed>) = 4 [pid 358] setpgid(0, 0./strace-static-x86_64: Process 357 attached [pid 355] <... memfd_create resumed>) = 3 [pid 353] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 350] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 358] <... setpgid resumed>) = 0 [pid 357] set_robust_list(0x7f562f35a9e0, 24 [pid 355] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 353] <... openat resumed>) = 3 [pid 350] <... futex resumed>) = 1 [pid 349] <... futex resumed>) = 0 [pid 358] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 357] <... set_robust_list resumed>) = 0 [pid 355] <... mmap resumed>) = 0x7f5626f3a000 [pid 353] write(3, "1000", 4 [pid 350] ftruncate(4, 33587195 [pid 349] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 358] <... openat resumed>) = 3 [pid 357] memfd_create("syzkaller", 0 [pid 353] <... write resumed>) = 4 [pid 350] <... ftruncate resumed>) = 0 [pid 349] <... futex resumed>) = 0 [pid 358] write(3, "1000", 4 [pid 357] <... memfd_create resumed>) = 3 [pid 353] close(3 [pid 350] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 349] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] <... write resumed>) = 4 [pid 357] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 353] <... close resumed>) = 0 [pid 350] <... futex resumed>) = 0 [pid 349] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 353] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 349] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 358] close(3 [pid 353] <... futex resumed>) = 0 [pid 350] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 349] <... futex resumed>) = 0 [pid 353] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 350] sendfile(3, 4, NULL, 4 [pid 349] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 358] <... close resumed>) = 0 [pid 353] <... mmap resumed>) = 0x7f562f33a000 [pid 357] <... mmap resumed>) = 0x7f5626f3a000 [pid 358] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 357] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 355] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 353] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 350] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 358] <... futex resumed>) = 0 [pid 353] <... mprotect resumed>) = 0 [pid 350] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 358] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 353] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 350] <... futex resumed>) = 1 [pid 349] <... futex resumed>) = 0 [pid 358] <... mmap resumed>) = 0x7f562f33a000 [pid 350] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 349] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 358] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 353] <... clone resumed>, parent_tid=[359], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 359 [pid 356] <... write resumed>) = 1048576 [pid 356] munmap(0x7f5626f3a000, 1048576) = 0 [pid 356] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 356] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 356] ioctl(4, LOOP_CLR_FD) = 0 [pid 358] <... mprotect resumed>) = 0 [pid 353] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 349] <... futex resumed>) = 0 [pid 358] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 353] <... futex resumed>) = 0 [pid 349] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 353] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 358] <... clone resumed>, parent_tid=[360], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 360 [pid 358] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 358] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 357] <... write resumed>) = 1048576 [pid 356] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 356] close(4) = 0 [pid 356] close(3 [pid 357] munmap(0x7f5626f3a000, 1048576) = 0 [pid 356] <... close resumed>) = 0 [pid 357] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 357] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 357] ioctl(4, LOOP_CLR_FD) = 0 [pid 356] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 351] <... futex resumed>) = 0 [pid 356] <... futex resumed>) = 1 [pid 351] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 356] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 351] <... futex resumed>) = 0 ./strace-static-x86_64: Process 360 attached [pid 356] <... open resumed>) = 3 [pid 351] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] set_robust_list(0x7f562f35a9e0, 24 [pid 356] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] <... set_robust_list resumed>) = 0 [pid 357] ioctl(4, LOOP_SET_FD, 3 [pid 356] <... futex resumed>) = 1 [pid 351] <... futex resumed>) = 0 [pid 360] memfd_create("syzkaller", 0 [pid 357] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 356] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 351] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] <... memfd_create resumed>) = 3 [pid 357] close(4 [pid 356] <... open resumed>) = 4 [pid 351] <... futex resumed>) = 0 [pid 360] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 357] <... close resumed>) = 0 [pid 356] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 351] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... mmap resumed>) = 0x7f5626f3a000 [pid 357] close(3 [pid 356] <... futex resumed>) = 0 [pid 351] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 360] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 357] <... close resumed>) = 0 [pid 356] ftruncate(4, 33587195 [pid 355] <... write resumed>) = 1048576 [pid 351] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 357] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 351] <... futex resumed>) = 0 [pid 357] <... futex resumed>) = 1 [pid 354] <... futex resumed>) = 0 [pid 351] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 357] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 354] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 357] <... open resumed>) = 3 [pid 355] munmap(0x7f5626f3a000, 1048576 [pid 354] <... futex resumed>) = 0 [pid 357] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 354] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 357] <... futex resumed>) = 0 [pid 354] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 357] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 355] <... munmap resumed>) = 0 [pid 354] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 357] <... open resumed>) = 4 [pid 355] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 354] <... futex resumed>) = 0 [pid 357] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 354] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 355] <... openat resumed>) = 4 ./strace-static-x86_64: Process 359 attached [pid 357] <... futex resumed>) = 0 [pid 356] <... ftruncate resumed>) = 0 [pid 355] ioctl(4, LOOP_SET_FD, 3 [pid 354] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 357] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 356] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 354] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] set_robust_list(0x7f562f35a9e0, 24 [pid 357] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 356] <... futex resumed>) = 1 [pid 355] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 354] <... futex resumed>) = 0 [pid 351] <... futex resumed>) = 0 [pid 357] ftruncate(4, 33587195 [pid 356] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 354] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... set_robust_list resumed>) = 0 [pid 357] <... ftruncate resumed>) = 0 [pid 356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 355] ioctl(4, LOOP_CLR_FD [pid 351] <... futex resumed>) = 0 [pid 357] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 356] sendfile(3, 4, NULL, 4 [pid 355] <... ioctl resumed>) = 0 [pid 351] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 359] memfd_create("syzkaller", 0 [pid 357] <... futex resumed>) = 1 [pid 356] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 354] <... futex resumed>) = 0 [pid 357] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 356] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 354] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... memfd_create resumed>) = 3 [pid 357] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 356] <... futex resumed>) = 1 [pid 354] <... futex resumed>) = 0 [pid 351] <... futex resumed>) = 0 [pid 359] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 357] sendfile(3, 4, NULL, 4 [pid 356] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 354] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... mmap resumed>) = 0x7f5626f3a000 [pid 357] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 355] ioctl(4, LOOP_SET_FD, 3 [pid 351] <... futex resumed>) = 0 [pid 357] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 356] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 351] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 355] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 357] <... futex resumed>) = 1 [pid 355] close(4 [pid 354] <... futex resumed>) = 0 [pid 357] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 355] <... close resumed>) = 0 [pid 354] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 357] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 354] <... futex resumed>) = 0 [pid 357] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 355] close(3 [pid 354] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... write resumed>) = 1048576 [pid 359] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 355] <... close resumed>) = 0 [pid 360] munmap(0x7f5626f3a000, 1048576 [pid 359] <... write resumed>) = 1048576 [pid 355] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] <... munmap resumed>) = 0 [pid 359] munmap(0x7f5626f3a000, 1048576 [pid 355] <... futex resumed>) = 1 [pid 352] <... futex resumed>) = 0 [pid 360] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 359] <... munmap resumed>) = 0 [pid 355] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 352] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 349] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 360] <... openat resumed>) = 4 [pid 359] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 352] <... futex resumed>) = 0 [pid 349] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] ioctl(4, LOOP_SET_FD, 3 [pid 359] <... openat resumed>) = 4 [pid 355] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 352] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] <... futex resumed>) = 0 [pid 360] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 359] ioctl(4, LOOP_SET_FD, 3 [pid 355] <... open resumed>) = 3 [pid 349] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 360] ioctl(4, LOOP_CLR_FD [pid 359] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 355] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] <... ioctl resumed>) = 0 [pid 359] ioctl(4, LOOP_CLR_FD [pid 355] <... futex resumed>) = 1 [pid 352] <... futex resumed>) = 0 [pid 359] <... ioctl resumed>) = 0 [pid 355] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 352] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 352] <... futex resumed>) = 0 [pid 355] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 352] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 355] <... open resumed>) = 4 [pid 355] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 352] <... futex resumed>) = 0 [pid 355] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 352] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = 0 [pid 352] <... futex resumed>) = 1 [pid 360] ioctl(4, LOOP_SET_FD, 3 [pid 355] ftruncate(4, 33587195 [pid 352] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 359] ioctl(4, LOOP_SET_FD, 3 [pid 360] close(4 [pid 359] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 355] <... ftruncate resumed>) = 0 [pid 357] <... mmap resumed>) = 0x20000000 [pid 356] <... mmap resumed>) = 0x20000000 [pid 355] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... mmap resumed>) = 0x20000000 [pid 349] <... mmap resumed>) = 0x7f5627019000 [pid 355] <... futex resumed>) = 1 [pid 352] <... futex resumed>) = 0 [pid 349] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 355] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 352] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 349] <... mprotect resumed>) = 0 [pid 356] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 352] <... futex resumed>) = 0 [pid 349] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 359] close(4 [pid 360] <... close resumed>) = 0 [pid 356] <... futex resumed>) = 1 [pid 355] sendfile(3, 4, NULL, 4 [pid 352] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 351] <... futex resumed>) = 0 [pid 350] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... close resumed>) = 0 [pid 356] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 355] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 351] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = 0 [pid 349] <... clone resumed>, parent_tid=[361], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 361 [pid 359] close(3 [pid 356] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 355] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 351] <... futex resumed>) = 0 [pid 350] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 349] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 357] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 356] madvise(0x20000000, 6291467, MADV_REMOVE [pid 355] <... futex resumed>) = 1 [pid 352] <... futex resumed>) = 0 [pid 351] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] <... futex resumed>) = 0 ./strace-static-x86_64: Process 361 attached [pid 360] close(3 [pid 359] <... close resumed>) = 0 [pid 357] <... futex resumed>) = 1 [pid 355] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 354] <... futex resumed>) = 0 [pid 352] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 349] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 361] set_robust_list(0x7f56270399e0, 24 [pid 357] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 355] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 354] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 352] <... futex resumed>) = 0 [pid 357] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 355] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 354] <... futex resumed>) = 0 [pid 352] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 357] madvise(0x20000000, 6291467, MADV_REMOVE [pid 354] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 361] <... set_robust_list resumed>) = 0 [pid 360] <... close resumed>) = 0 [pid 359] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 361] madvise(0x20000000, 6291467, MADV_REMOVE [pid 360] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... futex resumed>) = 1 [pid 353] <... futex resumed>) = 0 [pid 360] <... futex resumed>) = 1 [pid 359] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 358] <... futex resumed>) = 0 [pid 353] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 358] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 353] <... futex resumed>) = 0 [pid 360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 359] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 358] <... futex resumed>) = 0 [pid 353] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 359] <... open resumed>) = 3 [pid 358] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... open resumed>) = 3 [pid 359] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... futex resumed>) = 1 [pid 353] <... futex resumed>) = 0 [pid 360] <... futex resumed>) = 1 [pid 359] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 358] <... futex resumed>) = 0 [pid 353] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 358] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 353] <... futex resumed>) = 0 [pid 360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 359] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 358] <... futex resumed>) = 0 [pid 353] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 359] <... open resumed>) = 4 [pid 358] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... open resumed>) = 4 [pid 359] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... futex resumed>) = 1 [pid 353] <... futex resumed>) = 0 [pid 360] <... futex resumed>) = 1 [pid 359] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 358] <... futex resumed>) = 0 [pid 353] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 358] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 353] <... futex resumed>) = 0 [pid 360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 359] ftruncate(4, 33587195 [pid 358] <... futex resumed>) = 0 [pid 353] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] ftruncate(4, 33587195 [pid 358] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] <... madvise resumed>) = 0 [pid 356] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 356] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 351] <... futex resumed>) = 0 [pid 351] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 356] <... futex resumed>) = 0 [pid 351] <... futex resumed>) = 1 [pid 351] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 361] <... madvise resumed>) = 0 [pid 361] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... ftruncate resumed>) = 0 [pid 361] <... futex resumed>) = 1 [pid 359] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 349] <... futex resumed>) = 0 [pid 361] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] <... futex resumed>) = 1 [pid 353] <... futex resumed>) = 0 [pid 349] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] <... ftruncate resumed>) = 0 [pid 359] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 356] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 353] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 349] <... futex resumed>) = 1 [pid 360] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 356] <... openat resumed>) = 5 [pid 353] <... futex resumed>) = 0 [pid 349] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 360] <... futex resumed>) = 1 [pid 359] sendfile(3, 4, NULL, 4 [pid 358] <... futex resumed>) = 0 [pid 356] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 353] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 350] <... futex resumed>) = 0 [pid 360] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 358] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 356] <... futex resumed>) = 1 [pid 351] <... futex resumed>) = 0 [pid 360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 358] <... futex resumed>) = 0 [pid 356] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 351] exit_group(0 [pid 360] sendfile(3, 4, NULL, 4 [pid 358] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 356] <... futex resumed>) = ? [pid 351] <... exit_group resumed>) = ? [pid 356] +++ exited with 0 +++ [pid 351] +++ exited with 0 +++ [pid 350] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 357] <... madvise resumed>) = 0 [pid 350] <... openat resumed>) = 5 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=351, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 360] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 359] <... sendfile resumed>) = 4 [pid 357] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 360] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 357] <... futex resumed>) = 1 [pid 354] <... futex resumed>) = 0 [pid 350] <... futex resumed>) = 1 [pid 349] <... futex resumed>) = 0 [pid 292] <... openat resumed>) = 3 [pid 360] <... futex resumed>) = 1 [pid 359] <... futex resumed>) = 1 [pid 358] <... futex resumed>) = 0 [pid 357] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 354] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 353] <... futex resumed>) = 0 [pid 350] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 349] exit_group(0 [pid 292] ioctl(3, LOOP_CLR_FD [pid 361] <... futex resumed>) = ? [pid 360] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 358] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 357] <... openat resumed>) = 5 [pid 354] <... futex resumed>) = 0 [pid 353] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 350] <... futex resumed>) = ? [pid 349] <... exit_group resumed>) = ? [pid 292] <... ioctl resumed>) = 0 [pid 361] +++ exited with 0 +++ [pid 360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 358] <... futex resumed>) = 0 [pid 357] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 354] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 353] <... futex resumed>) = 0 [pid 350] +++ exited with 0 +++ [pid 292] close(3 [pid 360] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 359] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 358] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 357] <... futex resumed>) = 0 [pid 354] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 353] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 349] +++ exited with 0 +++ [pid 292] <... close resumed>) = 0 [pid 357] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 354] exit_group(0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=349, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 357] <... futex resumed>) = ? [pid 354] <... exit_group resumed>) = ? [pid 357] +++ exited with 0 +++ [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 362 [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 295] ioctl(3, LOOP_CLR_FD [pid 354] +++ exited with 0 +++ [pid 295] <... ioctl resumed>) = 0 [pid 295] close(3 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=354, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 360] <... mmap resumed>) = 0x20000000 [pid 295] <... close resumed>) = 0 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... restart_syscall resumed>) = 0 ./strace-static-x86_64: Process 363 attached ./strace-static-x86_64: Process 362 attached [pid 360] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... mmap resumed>) = 0x20000000 [pid 363] set_robust_list(0x5555573645e0, 24 [pid 362] set_robust_list(0x5555573645e0, 24 [pid 360] <... futex resumed>) = 1 [pid 359] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 358] <... futex resumed>) = 0 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 363 [pid 363] <... set_robust_list resumed>) = 0 [pid 362] <... set_robust_list resumed>) = 0 [pid 360] madvise(0x20000000, 6291467, MADV_REMOVE [pid 359] <... futex resumed>) = 1 [pid 358] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 353] <... futex resumed>) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 363] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 362] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 359] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 358] <... futex resumed>) = 0 [pid 353] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] <... openat resumed>) = 3 [pid 363] <... prctl resumed>) = 0 [pid 362] <... prctl resumed>) = 0 [pid 359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 358] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 353] <... futex resumed>) = 0 [pid 293] ioctl(3, LOOP_CLR_FD [pid 363] setpgid(0, 0 [pid 362] setpgid(0, 0 [pid 359] madvise(0x20000000, 6291467, MADV_REMOVE [pid 353] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 293] <... ioctl resumed>) = 0 [pid 363] <... setpgid resumed>) = 0 [pid 362] <... setpgid resumed>) = 0 [pid 293] close(3 [pid 363] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 362] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 355] <... mmap resumed>) = 0x20000000 [pid 352] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 293] <... close resumed>) = 0 [pid 363] <... openat resumed>) = 3 [pid 362] <... openat resumed>) = 3 [pid 355] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 352] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 363] write(3, "1000", 4 [pid 362] write(3, "1000", 4 [pid 355] <... futex resumed>) = 0 [pid 352] <... futex resumed>) = 0 [pid 363] <... write resumed>) = 4 [pid 362] <... write resumed>) = 4 [pid 355] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 352] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 364 [pid 363] close(3 [pid 362] close(3 [pid 352] <... mmap resumed>) = 0x7f5627019000 [pid 363] <... close resumed>) = 0 [pid 362] <... close resumed>) = 0 [pid 352] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 363] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 352] <... mprotect resumed>) = 0 [pid 363] <... futex resumed>) = 0 [pid 362] <... futex resumed>) = 0 [pid 352] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 363] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 362] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 363] <... mmap resumed>) = 0x7f562f33a000 [pid 362] <... mmap resumed>) = 0x7f562f33a000 [pid 352] <... clone resumed>, parent_tid=[365], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 365 [pid 363] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 362] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 352] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 364 attached [pid 363] <... mprotect resumed>) = 0 [pid 362] <... mprotect resumed>) = 0 [pid 352] <... futex resumed>) = 0 [pid 364] set_robust_list(0x5555573645e0, 24 [pid 363] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 362] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 352] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] <... set_robust_list resumed>) = 0 [pid 364] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 363] <... clone resumed>, parent_tid=[366], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 366 [pid 362] <... clone resumed>, parent_tid=[367], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 367 [pid 364] <... prctl resumed>) = 0 [pid 363] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 364] setpgid(0, 0 [pid 363] <... futex resumed>) = 0 [pid 362] <... futex resumed>) = 0 [pid 364] <... setpgid resumed>) = 0 [pid 363] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 362] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 366 attached ./strace-static-x86_64: Process 367 attached ./strace-static-x86_64: Process 365 attached [pid 364] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 360] <... madvise resumed>) = 0 [pid 359] <... madvise resumed>) = 0 [pid 366] set_robust_list(0x7f562f35a9e0, 24 [pid 364] <... openat resumed>) = 3 [pid 359] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] <... set_robust_list resumed>) = 0 [pid 365] set_robust_list(0x7f56270399e0, 24 [pid 364] write(3, "1000", 4 [pid 360] <... futex resumed>) = 1 [pid 359] <... futex resumed>) = 1 [pid 358] <... futex resumed>) = 0 [pid 353] <... futex resumed>) = 0 [pid 366] memfd_create("syzkaller", 0 [pid 365] <... set_robust_list resumed>) = 0 [pid 364] <... write resumed>) = 4 [pid 360] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 358] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 353] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] <... memfd_create resumed>) = 3 [pid 365] madvise(0x20000000, 6291467, MADV_REMOVE [pid 364] close(3 [pid 360] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 359] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 367] set_robust_list(0x7f562f35a9e0, 24 [pid 358] <... futex resumed>) = 0 [pid 353] <... futex resumed>) = 0 [pid 366] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 364] <... close resumed>) = 0 [pid 367] <... set_robust_list resumed>) = 0 [pid 366] <... mmap resumed>) = 0x7f5626f3a000 [pid 364] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 360] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 359] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 358] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 353] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] <... futex resumed>) = 0 [pid 359] <... openat resumed>) = 5 [pid 360] <... openat resumed>) = 5 [pid 364] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 359] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 365] <... madvise resumed>) = 0 [pid 364] <... mmap resumed>) = 0x7f562f33a000 [pid 360] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 359] <... futex resumed>) = 1 [pid 353] <... futex resumed>) = 0 [pid 365] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 364] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 360] <... futex resumed>) = 1 [pid 359] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 358] <... futex resumed>) = 0 [pid 353] exit_group(0 [pid 365] <... futex resumed>) = 1 [pid 364] <... mprotect resumed>) = 0 [pid 360] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 359] <... futex resumed>) = ? [pid 358] exit_group(0 [pid 353] <... exit_group resumed>) = ? [pid 352] <... futex resumed>) = 0 [pid 365] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 364] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 358] <... exit_group resumed>) = ? [pid 352] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 352] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] memfd_create("syzkaller", 0) = 3 [pid 367] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 359] +++ exited with 0 +++ [pid 353] +++ exited with 0 +++ [pid 355] <... futex resumed>) = 0 [pid 367] <... mmap resumed>) = 0x7f5626f3a000 ./strace-static-x86_64: Process 368 attached [pid 366] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 364] <... clone resumed>, parent_tid=[368], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 368 [pid 360] <... futex resumed>) = ? [pid 355] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=353, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 368] set_robust_list(0x7f562f35a9e0, 24 [pid 367] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 366] <... write resumed>) = 1048576 [pid 364] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 368] <... set_robust_list resumed>) = 0 [pid 366] munmap(0x7f5626f3a000, 1048576 [pid 364] <... futex resumed>) = 0 [pid 360] +++ exited with 0 +++ [pid 358] +++ exited with 0 +++ [pid 355] <... openat resumed>) = 5 [pid 296] <... openat resumed>) = 3 [pid 368] memfd_create("syzkaller", 0 [pid 366] <... munmap resumed>) = 0 [pid 364] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 355] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] ioctl(3, LOOP_CLR_FD [pid 368] <... memfd_create resumed>) = 3 [pid 366] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 355] <... futex resumed>) = 1 [pid 352] <... futex resumed>) = 0 [pid 296] <... ioctl resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=358, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 368] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 367] <... write resumed>) = 1048576 [pid 366] <... openat resumed>) = 4 [pid 355] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 352] exit_group(0 [pid 296] close(3 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 368] <... mmap resumed>) = 0x7f5626f3a000 [pid 367] munmap(0x7f5626f3a000, 1048576 [pid 366] ioctl(4, LOOP_SET_FD, 3 [pid 365] <... futex resumed>) = ? [pid 355] <... futex resumed>) = ? [pid 352] <... exit_group resumed>) = ? [pid 296] <... close resumed>) = 0 [pid 368] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 367] <... munmap resumed>) = 0 [pid 366] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 355] +++ exited with 0 +++ [pid 294] <... openat resumed>) = 3 [pid 368] <... write resumed>) = 1048576 [pid 367] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 366] ioctl(4, LOOP_CLR_FD [pid 365] +++ exited with 0 +++ [pid 367] <... openat resumed>) = 4 [pid 366] <... ioctl resumed>) = 0 [pid 367] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 367] ioctl(4, LOOP_CLR_FD) = 0 [pid 368] munmap(0x7f5626f3a000, 1048576) = 0 [pid 368] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 368] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 368] ioctl(4, LOOP_CLR_FD) = 0 [pid 352] +++ exited with 0 +++ [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] ioctl(3, LOOP_CLR_FD [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=352, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 366] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 366] close(4 [pid 367] ioctl(4, LOOP_SET_FD, 3 [pid 366] <... close resumed>) = 0 [pid 367] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 366] close(3 [pid 367] close(4 [pid 366] <... close resumed>) = 0 [pid 294] <... ioctl resumed>) = 0 [pid 367] <... close resumed>) = 0 [pid 366] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 369 [pid 294] close(3 [pid 367] close(3 [pid 366] <... futex resumed>) = 1 [pid 363] <... futex resumed>) = 0 [pid 367] <... close resumed>) = 0 [pid 366] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 363] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... close resumed>) = 0 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 363] <... futex resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 366] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 363] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] <... openat resumed>) = 3 [pid 367] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] <... open resumed>) = 3 [pid 367] <... futex resumed>) = 1 [pid 366] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] <... futex resumed>) = 0 [pid 291] ioctl(3, LOOP_CLR_FD [pid 367] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 366] <... futex resumed>) = 1 [pid 363] <... futex resumed>) = 0 [pid 362] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 370 [pid 291] <... ioctl resumed>) = 0 [pid 367] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 366] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 363] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] <... futex resumed>) = 0 [pid 367] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 363] <... futex resumed>) = 0 [pid 362] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] close(3 [pid 367] <... open resumed>) = 3 [pid 366] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 363] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] <... open resumed>) = 4 [pid 291] <... close resumed>) = 0 [pid 367] <... futex resumed>) = 1 [pid 366] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] <... futex resumed>) = 0 [pid 367] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 366] <... futex resumed>) = 1 [pid 363] <... futex resumed>) = 0 [pid 362] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 367] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 366] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 363] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] <... futex resumed>) = 0 [pid 367] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 363] <... futex resumed>) = 0 [pid 362] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] <... open resumed>) = 4 [pid 366] ftruncate(4, 33587195 [pid 363] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 368] ioctl(4, LOOP_SET_FD, 3 [pid 367] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] <... ftruncate resumed>) = 0 [pid 368] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 367] <... futex resumed>) = 1 [pid 366] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] <... futex resumed>) = 0 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 371 [pid 368] close(4 [pid 367] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 366] <... futex resumed>) = 1 [pid 363] <... futex resumed>) = 0 [pid 362] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 368] <... close resumed>) = 0 [pid 367] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 366] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 363] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] <... futex resumed>) = 0 [pid 368] close(3 [pid 367] ftruncate(4, 33587195 [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 363] <... futex resumed>) = 0 [pid 362] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 368] <... close resumed>) = 0 [pid 367] <... ftruncate resumed>) = 0 [pid 366] sendfile(3, 4, NULL, 4 [pid 363] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 367] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 362] <... futex resumed>) = 0 [pid 367] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 362] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 362] <... futex resumed>) = 0 [pid 367] sendfile(3, 4, NULL, 4 [pid 362] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 371 attached ./strace-static-x86_64: Process 370 attached ./strace-static-x86_64: Process 369 attached [pid 367] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 366] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 367] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 371] set_robust_list(0x5555573645e0, 24 [pid 367] <... futex resumed>) = 1 [pid 366] <... futex resumed>) = 1 [pid 363] <... futex resumed>) = 0 [pid 362] <... futex resumed>) = 0 [pid 371] <... set_robust_list resumed>) = 0 [pid 369] set_robust_list(0x5555573645e0, 24 [pid 368] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 366] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 363] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] set_robust_list(0x5555573645e0, 24 [pid 368] <... futex resumed>) = 1 [pid 367] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 364] <... futex resumed>) = 0 [pid 363] <... futex resumed>) = 0 [pid 362] <... futex resumed>) = 0 [pid 371] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 369] <... set_robust_list resumed>) = 0 [pid 368] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 367] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 366] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 364] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 363] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... prctl resumed>) = 0 [pid 370] <... set_robust_list resumed>) = 0 [pid 369] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 368] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 364] <... futex resumed>) = 0 [pid 371] setpgid(0, 0 [pid 370] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 369] <... prctl resumed>) = 0 [pid 368] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 364] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... setpgid resumed>) = 0 [pid 370] <... prctl resumed>) = 0 [pid 369] setpgid(0, 0 [pid 368] <... open resumed>) = 3 [pid 371] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 370] setpgid(0, 0 [pid 369] <... setpgid resumed>) = 0 [pid 368] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 371] <... openat resumed>) = 3 [pid 370] <... setpgid resumed>) = 0 [pid 368] <... futex resumed>) = 1 [pid 364] <... futex resumed>) = 0 [pid 371] write(3, "1000", 4 [pid 370] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 369] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 368] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 364] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 371] <... write resumed>) = 4 [pid 370] <... openat resumed>) = 3 [pid 369] <... openat resumed>) = 3 [pid 368] <... open resumed>) = 4 [pid 364] <... futex resumed>) = 0 [pid 371] close(3 [pid 370] write(3, "1000", 4 [pid 369] write(3, "1000", 4 [pid 368] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 364] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... close resumed>) = 0 [pid 370] <... write resumed>) = 4 [pid 369] <... write resumed>) = 4 [pid 368] <... futex resumed>) = 0 [pid 364] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 371] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] close(3 [pid 369] close(3 [pid 368] ftruncate(4, 33587195 [pid 364] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 371] <... futex resumed>) = 0 [pid 370] <... close resumed>) = 0 [pid 369] <... close resumed>) = 0 [pid 368] <... ftruncate resumed>) = 0 [pid 364] <... futex resumed>) = 0 [pid 371] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 370] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 369] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 368] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 364] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 371] <... mmap resumed>) = 0x7f562f33a000 [pid 370] <... futex resumed>) = 0 [pid 369] <... futex resumed>) = 0 [pid 368] <... futex resumed>) = 0 [pid 364] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 371] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 370] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 369] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 368] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 364] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 371] <... mprotect resumed>) = 0 [pid 370] <... mmap resumed>) = 0x7f562f33a000 [pid 369] <... mmap resumed>) = 0x7f562f33a000 [pid 368] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 364] <... futex resumed>) = 0 [pid 371] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 370] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 369] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 368] sendfile(3, 4, NULL, 4 [pid 364] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 370] <... mprotect resumed>) = 0 [pid 369] <... mprotect resumed>) = 0 [pid 368] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 370] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 368] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 369] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 368] <... futex resumed>) = 1 [pid 364] <... futex resumed>) = 0 [pid 371] <... clone resumed>, parent_tid=[372], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 372 [pid 368] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 364] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 371] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... clone resumed>, parent_tid=[373], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 373 [pid 369] <... clone resumed>, parent_tid=[374], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 374 [pid 368] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 364] <... futex resumed>) = 0 [pid 371] <... futex resumed>) = 0 [pid 370] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 369] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 368] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 364] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 374 attached ./strace-static-x86_64: Process 373 attached ./strace-static-x86_64: Process 372 attached [pid 371] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 370] <... futex resumed>) = 0 [pid 369] <... futex resumed>) = 0 [pid 367] <... mmap resumed>) = 0x20000000 [pid 366] <... mmap resumed>) = 0x20000000 [pid 374] set_robust_list(0x7f562f35a9e0, 24 [pid 373] set_robust_list(0x7f562f35a9e0, 24 [pid 372] set_robust_list(0x7f562f35a9e0, 24 [pid 370] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 369] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 367] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] <... set_robust_list resumed>) = 0 [pid 373] <... set_robust_list resumed>) = 0 [pid 372] <... set_robust_list resumed>) = 0 [pid 367] <... futex resumed>) = 1 [pid 366] <... futex resumed>) = 1 [pid 363] <... futex resumed>) = 0 [pid 362] <... futex resumed>) = 0 [pid 374] memfd_create("syzkaller", 0 [pid 373] memfd_create("syzkaller", 0 [pid 372] memfd_create("syzkaller", 0 [pid 367] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 366] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 363] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] <... memfd_create resumed>) = 3 [pid 373] <... memfd_create resumed>) = 3 [pid 372] <... memfd_create resumed>) = 3 [pid 368] <... mmap resumed>) = 0x20000000 [pid 367] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 363] <... futex resumed>) = 0 [pid 362] <... futex resumed>) = 0 [pid 374] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 373] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 372] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 368] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] madvise(0x20000000, 6291467, MADV_REMOVE [pid 366] madvise(0x20000000, 6291467, MADV_REMOVE [pid 363] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 362] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 374] <... mmap resumed>) = 0x7f5626f3a000 [pid 373] <... mmap resumed>) = 0x7f5626f3a000 [pid 368] <... futex resumed>) = 1 [pid 364] <... futex resumed>) = 0 [pid 368] madvise(0x20000000, 6291467, MADV_REMOVE [pid 364] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 372] <... mmap resumed>) = 0x7f5626f3a000 [pid 364] <... futex resumed>) = 0 [pid 373] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 372] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 364] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 374] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 372] <... write resumed>) = 1048576 [pid 372] munmap(0x7f5626f3a000, 1048576) = 0 [pid 372] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 372] ioctl(4, LOOP_SET_FD, 3 [pid 373] <... write resumed>) = 1048576 [pid 372] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 372] ioctl(4, LOOP_CLR_FD) = 0 [pid 372] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 372] close(4) = 0 [pid 372] close(3) = 0 [pid 372] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 372] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 371] <... futex resumed>) = 0 [pid 371] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 371] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] munmap(0x7f5626f3a000, 1048576 [pid 372] <... futex resumed>) = 0 [pid 372] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 372] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 371] <... futex resumed>) = 0 [pid 371] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] <... munmap resumed>) = 0 [pid 371] <... futex resumed>) = 0 [pid 373] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 371] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] <... openat resumed>) = 4 [pid 373] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 373] ioctl(4, LOOP_CLR_FD [pid 372] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 373] <... ioctl resumed>) = 0 [pid 372] <... open resumed>) = 4 [pid 372] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 371] <... futex resumed>) = 0 [pid 372] ftruncate(4, 33587195 [pid 371] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 371] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 373] close(4) = 0 [pid 374] <... write resumed>) = 1048576 [pid 374] munmap(0x7f5626f3a000, 1048576) = 0 [pid 374] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 374] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 374] ioctl(4, LOOP_CLR_FD) = 0 [pid 374] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 374] close(4) = 0 [pid 374] close(3 [pid 373] close(3) = 0 [pid 372] <... ftruncate resumed>) = 0 [pid 368] <... madvise resumed>) = 0 [pid 366] <... madvise resumed>) = 0 [pid 372] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 368] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 372] <... futex resumed>) = 1 [pid 371] <... futex resumed>) = 0 [pid 368] <... futex resumed>) = 1 [pid 366] <... futex resumed>) = 1 [pid 364] <... futex resumed>) = 0 [pid 363] <... futex resumed>) = 0 [pid 373] <... futex resumed>) = 1 [pid 372] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 371] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 0 [pid 368] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 366] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 364] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 363] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 372] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 371] <... futex resumed>) = 0 [pid 370] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 368] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 366] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 364] <... futex resumed>) = 0 [pid 363] <... futex resumed>) = 0 [pid 374] <... close resumed>) = 0 [pid 373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 372] sendfile(3, 4, NULL, 4 [pid 371] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 370] <... futex resumed>) = 0 [pid 367] <... madvise resumed>) = 0 [pid 374] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 370] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 374] <... futex resumed>) = 1 [pid 373] <... open resumed>) = 3 [pid 369] <... futex resumed>) = 0 [pid 368] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 367] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 366] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 364] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 363] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 374] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 373] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 369] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 368] <... openat resumed>) = 5 [pid 366] <... openat resumed>) = 5 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 373] <... futex resumed>) = 1 [pid 370] <... futex resumed>) = 0 [pid 369] <... futex resumed>) = 0 [pid 368] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 367] <... futex resumed>) = 1 [pid 366] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] <... futex resumed>) = 0 [pid 374] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 373] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 370] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 369] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 368] <... futex resumed>) = 1 [pid 366] <... futex resumed>) = 1 [pid 364] <... futex resumed>) = 0 [pid 363] <... futex resumed>) = 0 [pid 362] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] <... open resumed>) = 3 [pid 373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 372] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 370] <... futex resumed>) = 0 [pid 368] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 367] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 366] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 364] exit_group(0 [pid 363] exit_group(0 [pid 362] <... futex resumed>) = 0 [pid 374] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 372] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 368] <... futex resumed>) = ? [pid 366] <... futex resumed>) = ? [pid 364] <... exit_group resumed>) = ? [pid 363] <... exit_group resumed>) = ? [pid 362] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 374] <... futex resumed>) = 1 [pid 373] <... open resumed>) = 4 [pid 372] <... futex resumed>) = 1 [pid 371] <... futex resumed>) = 0 [pid 369] <... futex resumed>) = 0 [pid 368] +++ exited with 0 +++ [pid 367] <... openat resumed>) = 5 [pid 366] +++ exited with 0 +++ [pid 374] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 373] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 371] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 369] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 373] <... futex resumed>) = 1 [pid 371] <... futex resumed>) = 0 [pid 370] <... futex resumed>) = 0 [pid 369] <... futex resumed>) = 0 [pid 367] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 373] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 371] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 370] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 369] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 364] +++ exited with 0 +++ [pid 374] <... open resumed>) = 4 [pid 373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 370] <... futex resumed>) = 0 [pid 367] <... futex resumed>) = 0 [pid 374] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] ftruncate(4, 33587195 [pid 370] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 363] +++ exited with 0 +++ [pid 374] <... futex resumed>) = 1 [pid 372] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 369] <... futex resumed>) = 0 [pid 367] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 362] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 374] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 373] <... ftruncate resumed>) = 0 [pid 369] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 373] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 369] <... futex resumed>) = 0 [pid 374] ftruncate(4, 33587195 [pid 373] <... futex resumed>) = 1 [pid 370] <... futex resumed>) = 0 [pid 369] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 374] <... ftruncate resumed>) = 0 [pid 373] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 370] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 362] exit_group(0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=363, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=364, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 374] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 370] <... futex resumed>) = 0 [pid 367] <... futex resumed>) = ? [pid 362] <... exit_group resumed>) = ? [pid 374] <... futex resumed>) = 1 [pid 373] sendfile(3, 4, NULL, 4 [pid 370] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] <... futex resumed>) = 0 [pid 367] +++ exited with 0 +++ [pid 374] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 369] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 369] <... futex resumed>) = 0 [pid 374] sendfile(3, 4, NULL, 4 [pid 369] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 374] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 373] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 362] +++ exited with 0 +++ [pid 374] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=362, si_uid=0, si_status=0, si_utime=0, si_stime=5} --- [pid 374] <... futex resumed>) = 1 [pid 373] <... futex resumed>) = 1 [pid 370] <... futex resumed>) = 0 [pid 369] <... futex resumed>) = 0 [pid 295] <... openat resumed>) = 3 [pid 293] <... openat resumed>) = 3 [pid 374] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 373] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 370] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 369] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] ioctl(3, LOOP_CLR_FD [pid 293] ioctl(3, LOOP_CLR_FD [pid 374] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 370] <... futex resumed>) = 0 [pid 369] <... futex resumed>) = 0 [pid 295] <... ioctl resumed>) = 0 [pid 293] <... ioctl resumed>) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 374] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 373] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 370] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] close(3 [pid 293] close(3 [pid 292] <... openat resumed>) = 3 [pid 372] <... mmap resumed>) = 0x20000000 [pid 295] <... close resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 292] ioctl(3, LOOP_CLR_FD [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 376 attached ./strace-static-x86_64: Process 375 attached [pid 374] <... mmap resumed>) = 0x20000000 [pid 373] <... mmap resumed>) = 0x20000000 [pid 372] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 375 [pid 292] close(3 [pid 373] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 376 [pid 292] <... close resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 377 attached [pid 376] set_robust_list(0x5555573645e0, 24 [pid 375] set_robust_list(0x5555573645e0, 24 [pid 374] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] <... futex resumed>) = 1 [pid 372] <... futex resumed>) = 1 [pid 371] <... futex resumed>) = 0 [pid 370] <... futex resumed>) = 0 [pid 376] <... set_robust_list resumed>) = 0 [pid 375] <... set_robust_list resumed>) = 0 [pid 374] <... futex resumed>) = 1 [pid 373] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 372] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 371] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 369] <... futex resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 377 [pid 376] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 375] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 374] madvise(0x20000000, 6291467, MADV_REMOVE [pid 372] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 371] <... futex resumed>) = 0 [pid 370] <... futex resumed>) = 0 [pid 369] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 371] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 370] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] <... futex resumed>) = 0 [pid 369] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 377] set_robust_list(0x5555573645e0, 24) = 0 [pid 377] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 377] setpgid(0, 0) = 0 [pid 377] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 377] write(3, "1000", 4) = 4 [pid 377] close(3) = 0 [pid 377] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 377] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 377] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 377] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[378], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 378 [pid 377] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 377] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 378 attached [pid 378] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 378] memfd_create("syzkaller", 0) = 3 [pid 378] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 372] madvise(0x20000000, 6291467, MADV_REMOVE [pid 375] <... prctl resumed>) = 0 [pid 376] <... prctl resumed>) = 0 [pid 373] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 378] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 375] setpgid(0, 0 [pid 373] madvise(0x20000000, 6291467, MADV_REMOVE [pid 376] setpgid(0, 0 [pid 375] <... setpgid resumed>) = 0 [pid 376] <... setpgid resumed>) = 0 [pid 375] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 376] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 375] <... openat resumed>) = 3 [pid 375] write(3, "1000", 4 [pid 376] write(3, "1000", 4) = 4 [pid 375] <... write resumed>) = 4 [pid 375] close(3 [pid 376] close(3) = 0 [pid 375] <... close resumed>) = 0 [pid 375] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 375] <... futex resumed>) = 0 [pid 376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 375] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 376] <... mmap resumed>) = 0x7f562f33a000 [pid 375] <... mmap resumed>) = 0x7f562f33a000 [pid 376] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 375] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 376] <... mprotect resumed>) = 0 [pid 375] <... mprotect resumed>) = 0 [pid 376] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 375] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 376] <... clone resumed>, parent_tid=[379], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 379 [pid 376] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... clone resumed>, parent_tid=[380], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 380 [pid 375] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 375] <... futex resumed>) = 0 [pid 376] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 375] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 378] <... write resumed>) = 1048576 [pid 378] munmap(0x7f5626f3a000, 1048576) = 0 [pid 378] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 378] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 378] ioctl(4, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 379 attached [pid 379] set_robust_list(0x7f562f35a9e0, 24) = 0 ./strace-static-x86_64: Process 380 attached [pid 380] set_robust_list(0x7f562f35a9e0, 24 [pid 379] memfd_create("syzkaller", 0 [pid 380] <... set_robust_list resumed>) = 0 [pid 380] memfd_create("syzkaller", 0 [pid 378] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 378] close(4 [pid 380] <... memfd_create resumed>) = 3 [pid 379] <... memfd_create resumed>) = 3 [pid 378] <... close resumed>) = 0 [pid 374] <... madvise resumed>) = 0 [pid 373] <... madvise resumed>) = 0 [pid 372] <... madvise resumed>) = 0 [pid 373] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 372] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] <... futex resumed>) = 1 [pid 372] <... futex resumed>) = 1 [pid 373] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 372] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 378] close(3 [pid 374] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 374] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 379] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 380] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 371] <... futex resumed>) = 0 [pid 370] <... futex resumed>) = 0 [pid 369] <... futex resumed>) = 0 [pid 371] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 372] <... futex resumed>) = 0 [pid 371] <... futex resumed>) = 1 [pid 369] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] <... futex resumed>) = 1 [pid 373] <... futex resumed>) = 0 [pid 373] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 372] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 371] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 370] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 369] <... futex resumed>) = 1 [pid 378] <... close resumed>) = 0 [pid 373] <... openat resumed>) = 5 [pid 372] <... openat resumed>) = 5 [pid 369] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 378] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 372] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 378] <... futex resumed>) = 1 [pid 377] <... futex resumed>) = 0 [pid 373] <... futex resumed>) = 1 [pid 372] <... futex resumed>) = 1 [pid 371] <... futex resumed>) = 0 [pid 370] <... futex resumed>) = 0 [pid 378] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 377] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 373] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 372] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 378] <... open resumed>) = 3 [pid 377] <... futex resumed>) = 0 [pid 371] exit_group(0 [pid 370] exit_group(0 [pid 378] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 377] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 373] <... futex resumed>) = ? [pid 372] <... futex resumed>) = ? [pid 371] <... exit_group resumed>) = ? [pid 370] <... exit_group resumed>) = ? [pid 378] <... futex resumed>) = 0 [pid 377] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 373] +++ exited with 0 +++ [pid 372] +++ exited with 0 +++ [pid 374] <... futex resumed>) = 0 [pid 374] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5 [pid 374] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 374] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 371] +++ exited with 0 +++ [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=371, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 291] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 291] ioctl(3, LOOP_CLR_FD) = 0 [pid 291] close(3) = 0 [pid 377] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 370] +++ exited with 0 +++ [pid 369] <... futex resumed>) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=370, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 381 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 294] ioctl(3, LOOP_CLR_FD) = 0 [pid 294] close(3) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 382 [pid 369] exit_group(0 [pid 377] <... futex resumed>) = 0 [pid 380] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 377] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 374] <... futex resumed>) = ? [pid 369] <... exit_group resumed>) = ? [pid 378] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 374] +++ exited with 0 +++ [pid 369] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=369, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 296] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 382 attached ./strace-static-x86_64: Process 381 attached [pid 379] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 378] <... open resumed>) = 4 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 378] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... openat resumed>) = 3 [pid 382] set_robust_list(0x5555573645e0, 24 [pid 381] set_robust_list(0x5555573645e0, 24 [pid 378] <... futex resumed>) = 1 [pid 377] <... futex resumed>) = 0 [pid 296] ioctl(3, LOOP_CLR_FD [pid 382] <... set_robust_list resumed>) = 0 [pid 381] <... set_robust_list resumed>) = 0 [pid 378] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 377] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... ioctl resumed>) = 0 [pid 382] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 378] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 377] <... futex resumed>) = 0 [pid 296] close(3 [pid 382] <... prctl resumed>) = 0 [pid 381] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 380] <... write resumed>) = 1048576 [pid 379] <... write resumed>) = 1048576 [pid 378] ftruncate(4, 33587195 [pid 377] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... close resumed>) = 0 [pid 382] setpgid(0, 0 [pid 381] <... prctl resumed>) = 0 [pid 378] <... ftruncate resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 382] <... setpgid resumed>) = 0 [pid 381] setpgid(0, 0 [pid 378] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 382] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 381] <... setpgid resumed>) = 0 [pid 378] <... futex resumed>) = 1 [pid 377] <... futex resumed>) = 0 [pid 382] <... openat resumed>) = 3 [pid 381] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 378] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 377] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 382] write(3, "1000", 4 [pid 381] <... openat resumed>) = 3 [pid 378] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 377] <... futex resumed>) = 0 [pid 382] <... write resumed>) = 4 [pid 381] write(3, "1000", 4 [pid 378] sendfile(3, 4, NULL, 4 [pid 377] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 382] close(3 [pid 381] <... write resumed>) = 4 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 384 [pid 382] <... close resumed>) = 0 [pid 381] close(3 [pid 382] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... close resumed>) = 0 [pid 382] <... futex resumed>) = 0 [pid 381] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 382] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 381] <... futex resumed>) = 0 [pid 382] <... mmap resumed>) = 0x7f562f33a000 [pid 381] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 382] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 381] <... mmap resumed>) = 0x7f562f33a000 [pid 378] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 382] <... mprotect resumed>) = 0 [pid 381] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 378] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 382] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 381] <... mprotect resumed>) = 0 [pid 378] <... futex resumed>) = 1 [pid 377] <... futex resumed>) = 0 [pid 381] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 379] munmap(0x7f5626f3a000, 1048576 [pid 378] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 377] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 382] <... clone resumed>, parent_tid=[385], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 385 [pid 379] <... munmap resumed>) = 0 [pid 378] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 377] <... futex resumed>) = 0 [pid 382] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... clone resumed>, parent_tid=[386], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 386 [pid 379] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 378] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 377] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 386 attached ./strace-static-x86_64: Process 385 attached ./strace-static-x86_64: Process 384 attached [pid 382] <... futex resumed>) = 0 [pid 381] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] munmap(0x7f5626f3a000, 1048576 [pid 379] <... openat resumed>) = 4 [pid 386] set_robust_list(0x7f562f35a9e0, 24 [pid 385] set_robust_list(0x7f562f35a9e0, 24 [pid 384] set_robust_list(0x5555573645e0, 24 [pid 380] <... munmap resumed>) = 0 [pid 379] ioctl(4, LOOP_SET_FD, 3 [pid 386] <... set_robust_list resumed>) = 0 [pid 385] <... set_robust_list resumed>) = 0 [pid 384] <... set_robust_list resumed>) = 0 [pid 380] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 379] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 386] memfd_create("syzkaller", 0 [pid 385] memfd_create("syzkaller", 0 [pid 384] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 380] <... openat resumed>) = 4 [pid 379] ioctl(4, LOOP_CLR_FD [pid 386] <... memfd_create resumed>) = 3 [pid 385] <... memfd_create resumed>) = 3 [pid 384] <... prctl resumed>) = 0 [pid 380] ioctl(4, LOOP_SET_FD, 3 [pid 379] <... ioctl resumed>) = 0 [pid 386] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 385] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 384] setpgid(0, 0 [pid 380] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 386] <... mmap resumed>) = 0x7f5626f3a000 [pid 385] <... mmap resumed>) = 0x7f5626f3a000 [pid 384] <... setpgid resumed>) = 0 [pid 380] ioctl(4, LOOP_CLR_FD [pid 385] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 384] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 382] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 381] <... futex resumed>) = 0 [pid 380] <... ioctl resumed>) = 0 [pid 384] <... openat resumed>) = 3 [pid 381] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 379] ioctl(4, LOOP_SET_FD, 3 [pid 384] write(3, "1000", 4 [pid 379] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 384] <... write resumed>) = 4 [pid 379] close(4 [pid 384] close(3 [pid 379] <... close resumed>) = 0 [pid 384] <... close resumed>) = 0 [pid 380] ioctl(4, LOOP_SET_FD, 3 [pid 379] close(3 [pid 384] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 379] <... close resumed>) = 0 [pid 384] <... futex resumed>) = 0 [pid 380] close(4 [pid 379] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 386] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 384] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 380] <... close resumed>) = 0 [pid 379] <... futex resumed>) = 1 [pid 378] <... mmap resumed>) = 0x20000000 [pid 376] <... futex resumed>) = 0 [pid 384] <... mmap resumed>) = 0x7f562f33a000 [pid 380] close(3 [pid 379] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 376] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 384] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 380] <... close resumed>) = 0 [pid 379] <... open resumed>) = 3 [pid 376] <... futex resumed>) = 0 [pid 384] <... mprotect resumed>) = 0 [pid 380] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 380] <... futex resumed>) = 1 [pid 379] <... futex resumed>) = 0 [pid 376] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] <... futex resumed>) = 0 [pid 380] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 379] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 376] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 384] <... clone resumed>, parent_tid=[387], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 387 [pid 380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 379] <... open resumed>) = 4 [pid 376] <... futex resumed>) = 0 [pid 375] <... futex resumed>) = 0 [pid 386] <... write resumed>) = 1048576 [pid 384] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 379] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 378] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 384] <... futex resumed>) = 0 [pid 380] <... open resumed>) = 3 [pid 379] <... futex resumed>) = 0 [pid 378] <... futex resumed>) = 1 [pid 377] <... futex resumed>) = 0 [pid 376] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 384] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 380] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 378] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 377] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] <... futex resumed>) = 1 [pid 379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 378] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 377] <... futex resumed>) = 0 [pid 376] <... futex resumed>) = 0 [pid 375] <... futex resumed>) = 0 [pid 380] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 379] ftruncate(4, 33587195 [pid 378] madvise(0x20000000, 6291467, MADV_REMOVE [pid 377] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 376] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 379] <... ftruncate resumed>) = 0 [pid 375] <... futex resumed>) = 0 [pid 380] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 379] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] <... open resumed>) = 4 [pid 379] <... futex resumed>) = 1 [pid 376] <... futex resumed>) = 0 [pid 380] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 376] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] <... futex resumed>) = 1 [pid 379] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 376] <... futex resumed>) = 0 [pid 375] <... futex resumed>) = 0 [pid 380] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 379] sendfile(3, 4, NULL, 4 [pid 376] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] <... futex resumed>) = 0 [pid 380] ftruncate(4, 33587195 [pid 375] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 387 attached [pid 387] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 387] memfd_create("syzkaller", 0) = 3 [pid 387] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 387] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 380] <... ftruncate resumed>) = 0 [pid 379] <... sendfile resumed>) = 4 [pid 378] <... madvise resumed>) = 0 [pid 380] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... write resumed>) = 1048576 [pid 380] <... futex resumed>) = 1 [pid 379] <... futex resumed>) = 1 [pid 376] <... futex resumed>) = 0 [pid 375] <... futex resumed>) = 0 [pid 380] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 379] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 376] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... write resumed>) = 1048576 [pid 386] munmap(0x7f5626f3a000, 1048576 [pid 385] munmap(0x7f5626f3a000, 1048576 [pid 380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 378] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 375] <... futex resumed>) = 0 [pid 386] <... munmap resumed>) = 0 [pid 385] <... munmap resumed>) = 0 [pid 380] sendfile(3, 4, NULL, 4 [pid 376] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 375] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 385] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 386] <... openat resumed>) = 4 [pid 385] <... openat resumed>) = 4 [pid 386] ioctl(4, LOOP_SET_FD, 3 [pid 385] ioctl(4, LOOP_SET_FD, 3 [pid 386] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 385] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 380] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 386] ioctl(4, LOOP_CLR_FD [pid 385] ioctl(4, LOOP_CLR_FD [pid 380] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 386] <... ioctl resumed>) = 0 [pid 385] <... ioctl resumed>) = 0 [pid 380] <... futex resumed>) = 1 [pid 375] <... futex resumed>) = 0 [pid 380] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 375] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 375] <... futex resumed>) = 0 [pid 380] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 375] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 378] <... futex resumed>) = 1 [pid 377] <... futex resumed>) = 0 [pid 378] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 377] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 378] <... openat resumed>) = 5 [pid 377] <... futex resumed>) = 0 [pid 386] ioctl(4, LOOP_SET_FD, 3 [pid 385] ioctl(4, LOOP_SET_FD, 3 [pid 378] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 377] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 385] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 378] <... futex resumed>) = 0 [pid 377] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 386] close(4 [pid 385] close(4 [pid 378] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 377] exit_group(0 [pid 386] <... close resumed>) = 0 [pid 385] <... close resumed>) = 0 [pid 378] <... futex resumed>) = ? [pid 377] <... exit_group resumed>) = ? [pid 386] close(3 [pid 385] close(3 [pid 378] +++ exited with 0 +++ [pid 377] +++ exited with 0 +++ [pid 386] <... close resumed>) = 0 [pid 385] <... close resumed>) = 0 [pid 386] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=377, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 386] <... futex resumed>) = 1 [pid 385] <... futex resumed>) = 1 [pid 382] <... futex resumed>) = 0 [pid 381] <... futex resumed>) = 0 [pid 386] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 385] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 382] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 382] <... futex resumed>) = 0 [pid 381] <... futex resumed>) = 0 [pid 386] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 385] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 382] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 381] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 386] <... open resumed>) = 3 [pid 385] <... open resumed>) = 3 [pid 386] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... openat resumed>) = 3 [pid 387] munmap(0x7f5626f3a000, 1048576 [pid 386] <... futex resumed>) = 1 [pid 385] <... futex resumed>) = 1 [pid 382] <... futex resumed>) = 0 [pid 381] <... futex resumed>) = 0 [pid 292] ioctl(3, LOOP_CLR_FD [pid 387] <... munmap resumed>) = 0 [pid 386] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 385] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 382] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... ioctl resumed>) = 0 [pid 387] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 382] <... futex resumed>) = 0 [pid 381] <... futex resumed>) = 0 [pid 292] close(3 [pid 387] <... openat resumed>) = 4 [pid 386] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 385] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 382] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 381] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... close resumed>) = 0 [pid 387] ioctl(4, LOOP_SET_FD, 3 [pid 386] <... open resumed>) = 4 [pid 385] <... open resumed>) = 4 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 387] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 386] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] ioctl(4, LOOP_CLR_FD [pid 386] <... futex resumed>) = 1 [pid 385] <... futex resumed>) = 1 [pid 382] <... futex resumed>) = 0 [pid 381] <... futex resumed>) = 0 [pid 387] <... ioctl resumed>) = 0 [pid 386] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 385] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 382] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 382] <... futex resumed>) = 0 [pid 381] <... futex resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 388 [pid 386] ftruncate(4, 33587195 [pid 385] ftruncate(4, 33587195 [pid 382] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 381] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 387] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 387] close(4) = 0 [pid 387] close(3) = 0 [pid 386] <... ftruncate resumed>) = 0 [pid 387] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 386] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 1 [pid 386] <... futex resumed>) = 1 [pid 384] <... futex resumed>) = 0 [pid 381] <... futex resumed>) = 0 [pid 387] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 386] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 384] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 388 attached [pid 387] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 384] <... futex resumed>) = 0 [pid 381] <... futex resumed>) = 0 [pid 388] set_robust_list(0x5555573645e0, 24 [pid 387] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 386] sendfile(3, 4, NULL, 4 [pid 384] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 381] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... set_robust_list resumed>) = 0 [pid 387] <... open resumed>) = 3 [pid 387] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 388] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 388] setpgid(0, 0 [pid 387] <... futex resumed>) = 1 [pid 384] <... futex resumed>) = 0 [pid 384] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 388] <... setpgid resumed>) = 0 [pid 387] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 384] <... futex resumed>) = 0 [pid 388] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 387] <... open resumed>) = 4 [pid 384] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] <... openat resumed>) = 3 [pid 387] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 384] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 388] write(3, "1000", 4 [pid 384] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 388] <... write resumed>) = 4 [pid 384] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 388] close(3) = 0 [pid 387] <... futex resumed>) = 1 [pid 384] <... futex resumed>) = 0 [pid 387] ftruncate(4, 33587195 [pid 384] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} [pid 388] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 388] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 385] <... ftruncate resumed>) = 0 [pid 385] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 388] <... mmap resumed>) = 0x7f562f33a000 [pid 385] <... futex resumed>) = 1 [pid 382] <... futex resumed>) = 0 [pid 388] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 386] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 385] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 382] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 388] <... mprotect resumed>) = 0 [pid 386] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 382] <... futex resumed>) = 0 [pid 388] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 386] <... futex resumed>) = 1 [pid 385] sendfile(3, 4, NULL, 4 [pid 382] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 381] <... futex resumed>) = 0 ./strace-static-x86_64: Process 389 attached [pid 386] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 385] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 381] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 389] set_robust_list(0x7f562f35a9e0, 24 [pid 388] <... clone resumed>, parent_tid=[389], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 389 [pid 387] <... ftruncate resumed>) = 0 [pid 386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 385] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 389] <... set_robust_list resumed>) = 0 [pid 388] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 386] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 385] <... futex resumed>) = 1 [pid 382] <... futex resumed>) = 0 [pid 381] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 389] memfd_create("syzkaller", 0 [pid 388] <... futex resumed>) = 0 [pid 387] <... futex resumed>) = 1 [pid 386] <... mmap resumed>) = 0x20000000 [pid 385] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 384] <... futex resumed>) = 0 [pid 382] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] <... mmap resumed>) = 0x20000000 [pid 389] <... memfd_create resumed>) = 3 [pid 388] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 387] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 386] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 384] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 382] <... futex resumed>) = 0 [pid 389] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 387] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 386] <... futex resumed>) = 1 [pid 385] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 384] <... futex resumed>) = 0 [pid 382] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 381] <... futex resumed>) = 0 [pid 389] <... mmap resumed>) = 0x7f5626f3a000 [pid 387] sendfile(3, 4, NULL, 4 [pid 386] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 381] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 389] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 386] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 381] <... futex resumed>) = 0 [pid 386] madvise(0x20000000, 6291467, MADV_REMOVE [pid 381] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 385] <... mmap resumed>) = 0x20000000 [pid 384] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 380] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... mmap resumed>) = 0x20000000 [pid 376] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 375] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 376] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] <... futex resumed>) = 0 [pid 379] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] <... futex resumed>) = 0 [pid 375] <... futex resumed>) = 0 [pid 376] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 375] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 376] <... mmap resumed>) = 0x7f5627019000 [pid 376] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 376] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 385] <... futex resumed>) = 1 [pid 382] <... futex resumed>) = 0 [pid 380] madvise(0x20000000, 6291467, MADV_REMOVE [pid 379] <... futex resumed>) = 0 [pid 376] <... clone resumed>, parent_tid=[390], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 390 [pid 385] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 382] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 376] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 385] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 382] <... futex resumed>) = 0 [pid 379] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 376] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 390 attached [pid 390] set_robust_list(0x7f56270399e0, 24) = 0 [pid 390] madvise(0x20000000, 6291467, MADV_REMOVE [pid 385] madvise(0x20000000, 6291467, MADV_REMOVE [pid 382] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 389] <... write resumed>) = 1048576 [pid 389] munmap(0x7f5626f3a000, 1048576) = 0 [pid 389] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 389] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 389] ioctl(4, LOOP_CLR_FD) = 0 [pid 389] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 389] close(4) = 0 [pid 389] close(3) = 0 [pid 389] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 389] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 388] <... futex resumed>) = 0 [pid 388] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 388] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 389] <... futex resumed>) = 0 [pid 389] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 389] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 388] <... futex resumed>) = 0 [pid 389] <... futex resumed>) = 1 [pid 389] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 388] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 389] <... open resumed>) = 4 [pid 388] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 389] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 388] <... futex resumed>) = 0 [pid 389] <... futex resumed>) = 1 [pid 389] ftruncate(4, 33587195 [pid 388] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 388] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 387] <... sendfile resumed>) = 4 [pid 386] <... madvise resumed>) = 0 [pid 387] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 386] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 1 [pid 384] <... futex resumed>) = 0 [pid 381] <... futex resumed>) = 0 [pid 381] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 381] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] <... futex resumed>) = 1 [pid 387] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 384] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 387] <... futex resumed>) = 0 [pid 384] <... futex resumed>) = 1 [pid 387] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 384] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 385] <... madvise resumed>) = 0 [pid 380] <... madvise resumed>) = 0 [pid 390] <... madvise resumed>) = 0 [pid 385] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] <... futex resumed>) = 1 [pid 390] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 385] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 382] <... futex resumed>) = 0 [pid 380] <... futex resumed>) = 1 [pid 375] <... futex resumed>) = 0 [pid 390] <... futex resumed>) = 1 [pid 382] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 376] <... futex resumed>) = 0 [pid 375] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 390] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 385] <... futex resumed>) = 0 [pid 382] <... futex resumed>) = 1 [pid 380] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 376] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... futex resumed>) = 0 [pid 382] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 379] <... futex resumed>) = 0 [pid 376] <... futex resumed>) = 1 [pid 375] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 386] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 376] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 385] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 386] <... openat resumed>) = 5 [pid 386] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 381] <... futex resumed>) = 0 [pid 381] exit_group(0) = ? [pid 386] <... futex resumed>) = ? [pid 386] +++ exited with 0 +++ [pid 381] +++ exited with 0 +++ [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=381, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 291] restart_syscall(<... resuming interrupted clone ...> [pid 389] <... ftruncate resumed>) = 0 [pid 385] <... openat resumed>) = 5 [pid 380] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 379] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 385] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 380] <... openat resumed>) = 5 [pid 385] <... futex resumed>) = 1 [pid 382] <... futex resumed>) = 0 [pid 380] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] <... openat resumed>) = 5 [pid 385] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 382] exit_group(0 [pid 380] <... futex resumed>) = 1 [pid 385] <... futex resumed>) = ? [pid 382] <... exit_group resumed>) = ? [pid 379] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 375] <... futex resumed>) = 0 [pid 385] +++ exited with 0 +++ [pid 380] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 379] <... futex resumed>) = 1 [pid 376] <... futex resumed>) = 0 [pid 375] exit_group(0 [pid 291] <... restart_syscall resumed>) = 0 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 291] ioctl(3, LOOP_CLR_FD) = 0 [pid 291] close(3 [pid 382] +++ exited with 0 +++ [pid 380] <... futex resumed>) = ? [pid 379] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 376] exit_group(0 [pid 375] <... exit_group resumed>) = ? [pid 291] <... close resumed>) = 0 [pid 380] +++ exited with 0 +++ [pid 376] <... exit_group resumed>) = ? [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=382, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 391 [pid 390] <... futex resumed>) = ? [pid 379] <... futex resumed>) = ? [pid 375] +++ exited with 0 +++ [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 390] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=375, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 294] <... openat resumed>) = 3 [pid 389] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] ioctl(3, LOOP_CLR_FD [pid 389] <... futex resumed>) = 1 [pid 388] <... futex resumed>) = 0 [pid 294] <... ioctl resumed>) = 0 ./strace-static-x86_64: Process 391 attached [pid 389] sendfile(3, 4, NULL, 4 [pid 388] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 379] +++ exited with 0 +++ [pid 376] +++ exited with 0 +++ [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 294] close(3 [pid 388] <... futex resumed>) = 0 [pid 294] <... close resumed>) = 0 [pid 295] <... openat resumed>) = 3 [pid 388] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] ioctl(3, LOOP_CLR_FD [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=376, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 295] <... ioctl resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 392 [pid 389] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 295] close(3) = 0 [pid 389] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... openat resumed>) = 3 [pid 293] ioctl(3, LOOP_CLR_FD [pid 389] <... futex resumed>) = 1 [pid 388] <... futex resumed>) = 0 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 393 [pid 389] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 388] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] <... ioctl resumed>) = 0 [pid 388] <... futex resumed>) = 0 [pid 388] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 293] close(3) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 392 attached [pid 392] set_robust_list(0x5555573645e0, 24 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 394 [pid 392] <... set_robust_list resumed>) = 0 [pid 392] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 392] setpgid(0, 0) = 0 [pid 392] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 392] write(3, "1000", 4) = 4 [pid 392] close(3) = 0 [pid 392] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 ./strace-static-x86_64: Process 393 attached [pid 393] set_robust_list(0x5555573645e0, 24 [pid 392] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 392] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 393] <... set_robust_list resumed>) = 0 [pid 393] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 393] setpgid(0, 0) = 0 [pid 393] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 392] <... clone resumed>, parent_tid=[395], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 395 [pid 392] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 393] <... openat resumed>) = 3 [pid 393] write(3, "1000", 4) = 4 [pid 393] close(3) = 0 [pid 393] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 393] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 393] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 393] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[396], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 396 [pid 393] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 393] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 394 attached [pid 394] set_robust_list(0x5555573645e0, 24) = 0 [pid 394] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 394] setpgid(0, 0) = 0 [pid 394] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 394] write(3, "1000", 4) = 4 [pid 394] close(3) = 0 [pid 394] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 394] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 394] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[397], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 397 [pid 394] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 395 attached [pid 395] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 395] memfd_create("syzkaller", 0) = 3 [pid 395] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 391] set_robust_list(0x5555573645e0, 24 [pid 387] <... mmap resumed>) = 0x20000000 [pid 395] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 391] <... set_robust_list resumed>) = 0 [pid 387] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 387] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 397 attached [pid 397] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 397] memfd_create("syzkaller", 0) = 3 [pid 397] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 384] <... futex resumed>) = 0 [pid 384] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 384] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 387] <... futex resumed>) = 0 [pid 391] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 387] madvise(0x20000000, 6291467, MADV_REMOVE [pid 391] <... prctl resumed>) = 0 [pid 391] setpgid(0, 0) = 0 [pid 389] <... mmap resumed>) = 0x20000000 [pid 391] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 389] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 391] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 396 attached [pid 389] <... futex resumed>) = 1 [pid 388] <... futex resumed>) = 0 [pid 388] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 391] close(3 [pid 388] <... futex resumed>) = 0 [pid 388] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 391] <... close resumed>) = 0 [pid 391] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 396] set_robust_list(0x7f562f35a9e0, 24 [pid 391] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 389] madvise(0x20000000, 6291467, MADV_REMOVE [pid 391] <... mmap resumed>) = 0x7f562f33a000 [pid 396] <... set_robust_list resumed>) = 0 [pid 391] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 391] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[398], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 398 [pid 396] memfd_create("syzkaller", 0 [pid 391] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 391] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 396] <... memfd_create resumed>) = 3 [pid 396] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 397] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 398 attached [pid 396] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 398] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 398] memfd_create("syzkaller", 0 [pid 395] <... write resumed>) = 1048576 [pid 395] munmap(0x7f5626f3a000, 1048576 [pid 398] <... memfd_create resumed>) = 3 [pid 395] <... munmap resumed>) = 0 [pid 395] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 398] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 395] <... openat resumed>) = 4 [pid 395] ioctl(4, LOOP_SET_FD, 3 [pid 398] <... mmap resumed>) = 0x7f5626f3a000 [pid 395] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 395] ioctl(4, LOOP_CLR_FD) = 0 [pid 395] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 395] close(4) = 0 [pid 395] close(3 [pid 397] <... write resumed>) = 1048576 [pid 395] <... close resumed>) = 0 [pid 395] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 392] <... futex resumed>) = 0 [pid 392] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] <... futex resumed>) = 1 [pid 395] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 397] munmap(0x7f5626f3a000, 1048576) = 0 [pid 395] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 392] <... futex resumed>) = 0 [pid 392] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] <... futex resumed>) = 1 [pid 395] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 395] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 392] <... futex resumed>) = 0 [pid 392] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 392] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 396] <... write resumed>) = 1048576 [pid 397] ioctl(4, LOOP_SET_FD, 3 [pid 395] <... futex resumed>) = 1 [pid 397] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 395] ftruncate(4, 33587195 [pid 397] ioctl(4, LOOP_CLR_FD) = 0 [pid 397] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 397] close(4) = 0 [pid 397] close(3) = 0 [pid 397] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 394] <... futex resumed>) = 0 [pid 394] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 1 [pid 397] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 397] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 394] <... futex resumed>) = 0 [pid 394] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 397] <... futex resumed>) = 1 [pid 397] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 397] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 394] <... futex resumed>) = 0 [pid 397] ftruncate(4, 33587195 [pid 394] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 394] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 387] <... madvise resumed>) = 0 [pid 387] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 397] <... ftruncate resumed>) = 0 [pid 395] <... ftruncate resumed>) = 0 [pid 389] <... madvise resumed>) = 0 [pid 397] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 395] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 389] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 397] <... futex resumed>) = 1 [pid 395] <... futex resumed>) = 1 [pid 394] <... futex resumed>) = 0 [pid 392] <... futex resumed>) = 0 [pid 389] <... futex resumed>) = 1 [pid 388] <... futex resumed>) = 0 [pid 397] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 395] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 394] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 392] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 389] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 388] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 397] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 394] <... futex resumed>) = 0 [pid 392] <... futex resumed>) = 0 [pid 389] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 388] <... futex resumed>) = 0 [pid 397] sendfile(3, 4, NULL, 4 [pid 395] sendfile(3, 4, NULL, 4 [pid 394] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 392] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] <... sendfile resumed>) = 4 [pid 389] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 388] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 395] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 389] <... openat resumed>) = 5 [pid 395] <... futex resumed>) = 1 [pid 392] <... futex resumed>) = 0 [pid 395] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 392] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 389] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 397] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 392] <... futex resumed>) = 0 [pid 389] <... futex resumed>) = 1 [pid 388] <... futex resumed>) = 0 [pid 387] <... futex resumed>) = 1 [pid 384] <... futex resumed>) = 0 [pid 398] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 397] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] munmap(0x7f5626f3a000, 1048576 [pid 395] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 392] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 389] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 388] exit_group(0 [pid 387] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 384] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... write resumed>) = 1048576 [pid 397] <... futex resumed>) = 1 [pid 394] <... futex resumed>) = 0 [pid 389] <... futex resumed>) = ? [pid 388] <... exit_group resumed>) = ? [pid 387] <... openat resumed>) = 5 [pid 384] <... futex resumed>) = 0 [pid 398] munmap(0x7f5626f3a000, 1048576 [pid 397] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 396] <... munmap resumed>) = 0 [pid 394] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 389] +++ exited with 0 +++ [pid 388] +++ exited with 0 +++ [pid 387] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 384] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 398] <... munmap resumed>) = 0 [pid 397] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 396] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 394] <... futex resumed>) = 0 [pid 387] <... futex resumed>) = 0 [pid 384] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=388, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 398] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 397] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 396] <... openat resumed>) = 4 [pid 394] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 387] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 384] exit_group(0 [pid 398] <... openat resumed>) = 4 [pid 396] ioctl(4, LOOP_SET_FD, 3 [pid 387] <... futex resumed>) = ? [pid 384] <... exit_group resumed>) = ? [pid 398] ioctl(4, LOOP_SET_FD, 3 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 398] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 292] <... openat resumed>) = 3 [pid 398] ioctl(4, LOOP_CLR_FD [pid 292] ioctl(3, LOOP_CLR_FD [pid 398] <... ioctl resumed>) = 0 [pid 292] <... ioctl resumed>) = 0 [pid 292] close(3 [pid 396] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 387] +++ exited with 0 +++ [pid 384] +++ exited with 0 +++ [pid 292] <... close resumed>) = 0 [pid 396] ioctl(4, LOOP_CLR_FD [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=384, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 396] <... ioctl resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 399 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 398] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 296] <... openat resumed>) = 3 [pid 398] close(4 [pid 296] ioctl(3, LOOP_CLR_FD [pid 398] <... close resumed>) = 0 [pid 296] <... ioctl resumed>) = 0 [pid 398] close(3 [pid 396] ioctl(4, LOOP_SET_FD, 3 [pid 296] close(3 [pid 398] <... close resumed>) = 0 [pid 396] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 296] <... close resumed>) = 0 [pid 398] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] close(4 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 398] <... futex resumed>) = 1 [pid 396] <... close resumed>) = 0 [pid 391] <... futex resumed>) = 0 [pid 398] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 391] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] <... open resumed>) = 3 [pid 391] <... futex resumed>) = 0 [pid 398] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 391] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 398] <... futex resumed>) = 0 [pid 391] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 396] close(3 [pid 398] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 391] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 400 [pid 398] <... open resumed>) = 4 [pid 391] <... futex resumed>) = 0 [pid 398] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 391] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 398] <... futex resumed>) = 0 [pid 391] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 398] ftruncate(4, 33587195 [pid 391] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... close resumed>) = 0 [pid 391] <... futex resumed>) = 0 [pid 396] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 391] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 396] <... futex resumed>) = 1 [pid 393] <... futex resumed>) = 0 [pid 393] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 393] <... futex resumed>) = 0 ./strace-static-x86_64: Process 399 attached [pid 396] <... open resumed>) = 3 [pid 393] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] set_robust_list(0x5555573645e0, 24 [pid 396] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 399] <... set_robust_list resumed>) = 0 [pid 399] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 398] <... ftruncate resumed>) = 0 [pid 396] <... futex resumed>) = 1 [pid 393] <... futex resumed>) = 0 [pid 398] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 393] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 393] <... futex resumed>) = 0 [pid 399] setpgid(0, 0 [pid 398] <... futex resumed>) = 1 [pid 391] <... futex resumed>) = 0 [pid 393] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... setpgid resumed>) = 0 [pid 398] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 397] <... mmap resumed>) = 0x20000000 [pid 396] <... open resumed>) = 4 [pid 395] <... mmap resumed>) = 0x20000000 [pid 391] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 399] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 398] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 396] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 391] <... futex resumed>) = 0 [pid 399] <... openat resumed>) = 3 [pid 398] sendfile(3, 4, NULL, 4 [pid 396] <... futex resumed>) = 1 [pid 393] <... futex resumed>) = 0 [pid 391] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 400 attached [pid 399] write(3, "1000", 4 [pid 398] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 397] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 395] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 393] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] set_robust_list(0x5555573645e0, 24 [pid 399] <... write resumed>) = 4 [pid 398] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 397] <... futex resumed>) = 1 [pid 396] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 395] <... futex resumed>) = 1 [pid 394] <... futex resumed>) = 0 [pid 393] <... futex resumed>) = 0 [pid 392] <... futex resumed>) = 0 [pid 400] <... set_robust_list resumed>) = 0 [pid 397] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 396] ftruncate(4, 33587195 [pid 395] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 398] <... futex resumed>) = 1 [pid 394] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 393] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] close(3 [pid 392] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 391] <... futex resumed>) = 0 [pid 400] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 397] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 396] <... ftruncate resumed>) = 0 [pid 395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 394] <... futex resumed>) = 0 [pid 392] <... futex resumed>) = 0 [pid 400] <... prctl resumed>) = 0 [pid 397] madvise(0x20000000, 6291467, MADV_REMOVE [pid 396] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 395] madvise(0x20000000, 6291467, MADV_REMOVE [pid 394] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 392] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 400] setpgid(0, 0 [pid 399] <... close resumed>) = 0 [pid 398] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 396] <... futex resumed>) = 1 [pid 393] <... futex resumed>) = 0 [pid 391] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... setpgid resumed>) = 0 [pid 397] <... madvise resumed>) = 0 [pid 396] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 395] <... madvise resumed>) = 0 [pid 393] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 391] <... futex resumed>) = 0 [pid 400] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 397] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 395] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 393] <... futex resumed>) = 0 [pid 391] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 400] <... openat resumed>) = 3 [pid 397] <... futex resumed>) = 1 [pid 396] sendfile(3, 4, NULL, 4 [pid 395] <... futex resumed>) = 1 [pid 394] <... futex resumed>) = 0 [pid 393] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 392] <... futex resumed>) = 0 [pid 400] write(3, "1000", 4 [pid 397] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 396] <... sendfile resumed>) = 4 [pid 395] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 394] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 392] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... write resumed>) = 4 [pid 397] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 396] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 395] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 394] <... futex resumed>) = 0 [pid 392] <... futex resumed>) = 0 [pid 400] close(3 [pid 397] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 396] <... futex resumed>) = 1 [pid 395] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 394] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 393] <... futex resumed>) = 0 [pid 392] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 400] <... close resumed>) = 0 [pid 397] <... openat resumed>) = 5 [pid 396] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 395] <... openat resumed>) = 5 [pid 393] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 397] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 395] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 393] <... futex resumed>) = 0 [pid 400] <... futex resumed>) = 0 [pid 397] <... futex resumed>) = 1 [pid 396] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 395] <... futex resumed>) = 1 [pid 394] <... futex resumed>) = 0 [pid 393] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 392] <... futex resumed>) = 0 [pid 400] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 399] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 397] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 395] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 394] exit_group(0 [pid 392] exit_group(0 [pid 400] <... mmap resumed>) = 0x7f562f33a000 [pid 397] <... futex resumed>) = ? [pid 395] <... futex resumed>) = ? [pid 394] <... exit_group resumed>) = ? [pid 392] <... exit_group resumed>) = ? [pid 400] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 399] <... futex resumed>) = 0 [pid 397] +++ exited with 0 +++ [pid 395] +++ exited with 0 +++ [pid 394] +++ exited with 0 +++ [pid 392] +++ exited with 0 +++ [pid 400] <... mprotect resumed>) = 0 [pid 400] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 399] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=392, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=394, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 400] <... clone resumed>, parent_tid=[401], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 401 [pid 399] <... mmap resumed>) = 0x7f562f33a000 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 400] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 400] <... futex resumed>) = 0 [pid 399] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 294] <... openat resumed>) = 3 [pid 400] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 293] <... openat resumed>) = 3 [pid 294] ioctl(3, LOOP_CLR_FD [pid 399] <... mprotect resumed>) = 0 [pid 293] ioctl(3, LOOP_CLR_FD [pid 294] <... ioctl resumed>) = 0 [pid 293] <... ioctl resumed>) = 0 [pid 294] close(3 [pid 293] close(3 [pid 294] <... close resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 399] clone(child_stack=0x7f562f35a3f0, 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 401 attached [pid 401] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 401] memfd_create("syzkaller", 0) = 3 [pid 401] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 402 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 403 [pid 399] <... clone resumed>, parent_tid=[404], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 404 [pid 399] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 403 attached [pid 403] set_robust_list(0x5555573645e0, 24) = 0 [pid 403] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 403] setpgid(0, 0 [pid 399] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 403] <... setpgid resumed>) = 0 [pid 403] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 403] write(3, "1000", 4) = 4 [pid 403] close(3) = 0 [pid 403] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 403] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 403] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 403] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[405], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 405 [pid 403] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 403] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 401] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 402 attached [pid 402] set_robust_list(0x5555573645e0, 24./strace-static-x86_64: Process 404 attached ) = 0 [pid 404] set_robust_list(0x7f562f35a9e0, 24./strace-static-x86_64: Process 405 attached [pid 405] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 405] memfd_create("syzkaller", 0) = 3 [pid 404] <... set_robust_list resumed>) = 0 [pid 402] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 401] <... write resumed>) = 1048576 [pid 405] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 404] memfd_create("syzkaller", 0 [pid 402] setpgid(0, 0) = 0 [pid 404] <... memfd_create resumed>) = 3 [pid 401] munmap(0x7f5626f3a000, 1048576 [pid 402] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 404] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 401] <... munmap resumed>) = 0 [pid 401] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 402] <... openat resumed>) = 3 [pid 401] <... openat resumed>) = 4 [pid 404] <... mmap resumed>) = 0x7f5626f3a000 [pid 402] write(3, "1000", 4 [pid 401] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 401] ioctl(4, LOOP_CLR_FD) = 0 [pid 401] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 401] close(4) = 0 [pid 401] close(3 [pid 402] <... write resumed>) = 4 [pid 402] close(3) = 0 [pid 402] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 404] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 402] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 402] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 401] <... close resumed>) = 0 [pid 402] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[406], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 406 [pid 402] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 401] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 1 [pid 401] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 401] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 1 [pid 401] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 401] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 1 [pid 401] ftruncate(4, 33587195 [pid 405] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 406 attached [pid 406] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 406] memfd_create("syzkaller", 0) = 3 [pid 406] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 401] <... ftruncate resumed>) = 0 [pid 401] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 1 [pid 401] sendfile(3, 4, NULL, 4) = -1 EINVAL (Invalid argument) [pid 401] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 401] <... futex resumed>) = 1 [pid 401] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 391] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 391] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 393] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 391] <... futex resumed>) = 0 [pid 393] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 391] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 393] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 393] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 396] <... mmap resumed>) = 0x20000000 [pid 393] <... mprotect resumed>) = 0 [pid 393] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[407], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 407 [pid 393] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 393] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 396] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 404] <... write resumed>) = 1048576 [pid 398] <... mmap resumed>) = 0x20000000 [pid 396] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 391] <... mmap resumed>) = 0x7f5627019000 [pid 404] munmap(0x7f5626f3a000, 1048576 [pid 398] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 391] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 407 attached [pid 406] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 404] <... munmap resumed>) = 0 [pid 398] <... futex resumed>) = 0 [pid 391] <... mprotect resumed>) = 0 [pid 401] <... mmap resumed>) = 0x20000000 [pid 407] set_robust_list(0x7f56270399e0, 24 [pid 404] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 401] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 391] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 405] <... write resumed>) = 1048576 [pid 407] <... set_robust_list resumed>) = 0 [pid 404] <... openat resumed>) = 4 [pid 405] munmap(0x7f5626f3a000, 1048576 [pid 401] <... futex resumed>) = 1 [pid 400] <... futex resumed>) = 0 [pid 400] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 400] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 408 attached [pid 408] set_robust_list(0x7f56270399e0, 24 [pid 391] <... clone resumed>, parent_tid=[408], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 408 [pid 407] madvise(0x20000000, 6291467, MADV_REMOVE [pid 404] ioctl(4, LOOP_SET_FD, 3 [pid 401] madvise(0x20000000, 6291467, MADV_REMOVE [pid 408] <... set_robust_list resumed>) = 0 [pid 404] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 391] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 408] madvise(0x20000000, 6291467, MADV_REMOVE [pid 404] ioctl(4, LOOP_CLR_FD [pid 391] <... futex resumed>) = 0 [pid 404] <... ioctl resumed>) = 0 [pid 391] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 405] <... munmap resumed>) = 0 [pid 405] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 405] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 404] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 404] close(4) = 0 [pid 405] ioctl(4, LOOP_CLR_FD) = 0 [pid 405] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 405] close(4) = 0 [pid 405] close(3 [pid 404] close(3 [pid 406] <... write resumed>) = 1048576 [pid 404] <... close resumed>) = 0 [pid 405] <... close resumed>) = 0 [pid 404] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 406] munmap(0x7f5626f3a000, 1048576 [pid 404] <... futex resumed>) = 1 [pid 399] <... futex resumed>) = 0 [pid 399] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 404] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 399] <... futex resumed>) = 0 [pid 399] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 405] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 404] <... open resumed>) = 3 [pid 403] <... futex resumed>) = 0 [pid 403] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 403] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 405] <... futex resumed>) = 1 [pid 405] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 404] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... open resumed>) = 3 [pid 405] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 403] <... futex resumed>) = 0 [pid 403] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 403] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 404] <... futex resumed>) = 1 [pid 399] <... futex resumed>) = 0 [pid 404] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 399] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 404] <... open resumed>) = 4 [pid 399] <... futex resumed>) = 0 [pid 406] <... munmap resumed>) = 0 [pid 405] <... futex resumed>) = 1 [pid 404] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 399] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 405] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 404] <... futex resumed>) = 0 [pid 399] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 406] <... openat resumed>) = 4 [pid 405] <... open resumed>) = 4 [pid 404] ftruncate(4, 33587195 [pid 399] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 406] ioctl(4, LOOP_SET_FD, 3 [pid 405] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 399] <... futex resumed>) = 0 [pid 406] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 405] <... futex resumed>) = 1 [pid 403] <... futex resumed>) = 0 [pid 399] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] ioctl(4, LOOP_CLR_FD [pid 405] ftruncate(4, 33587195 [pid 403] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 406] <... ioctl resumed>) = 0 [pid 403] <... futex resumed>) = 0 [pid 403] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 406] close(4) = 0 [pid 406] close(3 [pid 408] <... madvise resumed>) = 0 [pid 407] <... madvise resumed>) = 0 [pid 404] <... ftruncate resumed>) = 0 [pid 401] <... madvise resumed>) = 0 [pid 408] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 406] <... close resumed>) = 0 [pid 405] <... ftruncate resumed>) = 0 [pid 404] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 401] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 407] <... futex resumed>) = 1 [pid 404] <... futex resumed>) = 1 [pid 399] <... futex resumed>) = 0 [pid 393] <... futex resumed>) = 0 [pid 407] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 404] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 401] <... futex resumed>) = 1 [pid 399] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 393] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 404] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 401] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 399] <... futex resumed>) = 0 [pid 396] <... futex resumed>) = 0 [pid 393] <... futex resumed>) = 1 [pid 408] <... futex resumed>) = 1 [pid 406] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 404] sendfile(3, 4, NULL, 4 [pid 400] <... futex resumed>) = 0 [pid 399] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 396] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 391] <... futex resumed>) = 0 [pid 393] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 408] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 406] <... futex resumed>) = 1 [pid 405] <... futex resumed>) = 1 [pid 403] <... futex resumed>) = 0 [pid 402] <... futex resumed>) = 0 [pid 400] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 391] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 406] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 405] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 403] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] <... futex resumed>) = 1 [pid 391] <... futex resumed>) = 1 [pid 406] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 405] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 403] <... futex resumed>) = 0 [pid 402] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 400] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 398] <... futex resumed>) = 0 [pid 396] <... openat resumed>) = 5 [pid 391] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 405] sendfile(3, 4, NULL, 4 [pid 403] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] <... open resumed>) = 3 [pid 405] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 404] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 402] <... futex resumed>) = 0 [pid 401] <... futex resumed>) = 0 [pid 398] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 396] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 406] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 398] <... openat resumed>) = 5 [pid 406] <... futex resumed>) = 0 [pid 405] <... futex resumed>) = 1 [pid 404] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 403] <... futex resumed>) = 0 [pid 402] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 398] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 396] <... futex resumed>) = 1 [pid 393] <... futex resumed>) = 0 [pid 401] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 406] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 405] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 404] <... futex resumed>) = 1 [pid 403] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 399] <... futex resumed>) = 0 [pid 398] <... futex resumed>) = 1 [pid 396] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 393] exit_group(0 [pid 391] <... futex resumed>) = 0 [pid 407] <... futex resumed>) = ? [pid 406] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 405] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 404] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 403] <... futex resumed>) = 0 [pid 402] <... futex resumed>) = 0 [pid 399] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 398] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 396] <... futex resumed>) = ? [pid 393] <... exit_group resumed>) = ? [pid 391] exit_group(0 [pid 401] <... openat resumed>) = 5 [pid 408] <... futex resumed>) = ? [pid 407] +++ exited with 0 +++ [pid 405] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 404] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 403] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 402] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 0 [pid 398] <... futex resumed>) = ? [pid 396] +++ exited with 0 +++ [pid 391] <... exit_group resumed>) = ? [pid 408] +++ exited with 0 +++ [pid 406] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 404] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 401] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 399] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 398] +++ exited with 0 +++ [pid 393] +++ exited with 0 +++ [pid 406] <... open resumed>) = 4 [pid 401] <... futex resumed>) = 1 [pid 400] <... futex resumed>) = 0 [pid 391] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=393, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=391, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 406] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 401] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 400] exit_group(0 [pid 406] <... futex resumed>) = 1 [pid 402] <... futex resumed>) = 0 [pid 401] <... futex resumed>) = ? [pid 400] <... exit_group resumed>) = ? [pid 402] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 406] ftruncate(4, 33587195 [pid 402] <... futex resumed>) = 0 [pid 295] <... openat resumed>) = 3 [pid 402] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] ioctl(3, LOOP_CLR_FD [pid 291] <... openat resumed>) = 3 [pid 295] <... ioctl resumed>) = 0 [pid 291] ioctl(3, LOOP_CLR_FD [pid 295] close(3) = 0 [pid 291] <... ioctl resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 409 ./strace-static-x86_64: Process 409 attached [pid 409] set_robust_list(0x5555573645e0, 24) = 0 [pid 409] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 409] setpgid(0, 0) = 0 [pid 409] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 409] write(3, "1000", 4) = 4 [pid 409] close(3) = 0 [pid 409] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 409] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 406] <... ftruncate resumed>) = 0 [pid 401] +++ exited with 0 +++ [pid 400] +++ exited with 0 +++ [pid 291] close(3 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=400, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 406] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] <... close resumed>) = 0 [pid 406] <... futex resumed>) = 1 [pid 402] <... futex resumed>) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 406] sendfile(3, 4, NULL, 4 [pid 402] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 296] ioctl(3, LOOP_CLR_FD) = 0 [pid 296] close(3) = 0 [pid 402] <... futex resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 410 [pid 402] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 411 [pid 406] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 406] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 402] <... futex resumed>) = 0 [pid 406] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 402] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 409] <... mmap resumed>) = 0x7f562f33a000 [pid 409] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 409] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[412], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 412 [pid 409] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 410 attached [pid 410] set_robust_list(0x5555573645e0, 24 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 410] <... set_robust_list resumed>) = 0 [pid 410] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 410] setpgid(0, 0) = 0 [pid 410] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 410] write(3, "1000", 4) = 4 [pid 410] close(3) = 0 ./strace-static-x86_64: Process 411 attached [pid 411] set_robust_list(0x5555573645e0, 24) = 0 [pid 411] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 411] setpgid(0, 0) = 0 [pid 411] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 410] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] write(3, "1000", 4) = 4 [pid 411] close(3 [pid 410] <... futex resumed>) = 0 [pid 411] <... close resumed>) = 0 [pid 411] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 410] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 410] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 411] <... mmap resumed>) = 0x7f562f33a000 [pid 411] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 411] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 410] <... mprotect resumed>) = 0 [pid 410] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 411] <... clone resumed>, parent_tid=[413], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 413 [pid 411] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 410] <... clone resumed>, parent_tid=[414], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 414 [pid 410] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 412 attached ) = 0 [pid 410] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 412] set_robust_list(0x7f562f35a9e0, 24./strace-static-x86_64: Process 413 attached [pid 413] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 412] <... set_robust_list resumed>) = 0 [pid 413] memfd_create("syzkaller", 0 [pid 412] memfd_create("syzkaller", 0 [pid 413] <... memfd_create resumed>) = 3 [pid 413] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 412] <... memfd_create resumed>) = 3 [pid 412] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 405] <... mmap resumed>) = 0x20000000 [pid 406] <... mmap resumed>) = 0x20000000 ./strace-static-x86_64: Process 414 attached [pid 404] <... mmap resumed>) = 0x20000000 [pid 406] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 414] set_robust_list(0x7f562f35a9e0, 24 [pid 406] <... futex resumed>) = 1 [pid 404] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 402] <... futex resumed>) = 0 [pid 402] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 402] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] <... set_robust_list resumed>) = 0 [pid 406] madvise(0x20000000, 6291467, MADV_REMOVE [pid 404] <... futex resumed>) = 1 [pid 399] <... futex resumed>) = 0 [pid 399] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 399] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] memfd_create("syzkaller", 0) = 3 [pid 404] madvise(0x20000000, 6291467, MADV_REMOVE [pid 405] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 413] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 414] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 412] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 406] <... madvise resumed>) = 0 [pid 405] <... futex resumed>) = 1 [pid 404] <... madvise resumed>) = 0 [pid 403] <... futex resumed>) = 0 [pid 414] <... mmap resumed>) = 0x7f5626f3a000 [pid 406] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 404] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 403] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 403] <... futex resumed>) = 0 [pid 414] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 405] madvise(0x20000000, 6291467, MADV_REMOVE [pid 404] <... futex resumed>) = 1 [pid 403] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 0 [pid 399] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] <... madvise resumed>) = 0 [pid 399] <... futex resumed>) = 0 [pid 404] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 399] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 405] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 403] <... futex resumed>) = 0 [pid 404] <... openat resumed>) = 5 [pid 403] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 405] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 404] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 403] <... futex resumed>) = 0 [pid 405] <... openat resumed>) = 5 [pid 404] <... futex resumed>) = 1 [pid 403] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 399] <... futex resumed>) = 0 [pid 399] exit_group(0 [pid 405] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 404] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 405] <... futex resumed>) = 1 [pid 404] <... futex resumed>) = ? [pid 403] <... futex resumed>) = 0 [pid 399] <... exit_group resumed>) = ? [pid 403] exit_group(0 [pid 405] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 413] <... write resumed>) = 1048576 [pid 404] +++ exited with 0 +++ [pid 399] +++ exited with 0 +++ [pid 405] <... futex resumed>) = ? [pid 403] <... exit_group resumed>) = ? [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=399, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 413] munmap(0x7f5626f3a000, 1048576) = 0 [pid 292] <... restart_syscall resumed>) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 292] ioctl(3, LOOP_CLR_FD) = 0 [pid 292] close(3 [pid 414] <... write resumed>) = 1048576 [pid 413] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 412] <... write resumed>) = 1048576 [pid 406] <... futex resumed>) = 1 [pid 405] +++ exited with 0 +++ [pid 403] +++ exited with 0 +++ [pid 402] <... futex resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 402] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 402] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 406] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=403, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 413] <... openat resumed>) = 4 [pid 406] <... openat resumed>) = 5 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 415 [pid 413] ioctl(4, LOOP_SET_FD, 3 [pid 406] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 413] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 406] <... futex resumed>) = 1 [pid 402] <... futex resumed>) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 414] munmap(0x7f5626f3a000, 1048576 [pid 413] ioctl(4, LOOP_CLR_FD [pid 406] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 402] exit_group(0 [pid 293] <... openat resumed>) = 3 ./strace-static-x86_64: Process 415 attached [pid 414] <... munmap resumed>) = 0 [pid 413] <... ioctl resumed>) = 0 [pid 412] munmap(0x7f5626f3a000, 1048576 [pid 406] <... futex resumed>) = ? [pid 402] <... exit_group resumed>) = ? [pid 293] ioctl(3, LOOP_CLR_FD) = 0 [pid 293] close(3 [pid 414] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 412] <... munmap resumed>) = 0 [pid 406] +++ exited with 0 +++ [pid 402] +++ exited with 0 +++ [pid 293] <... close resumed>) = 0 [pid 414] <... openat resumed>) = 4 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=402, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 414] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 414] ioctl(4, LOOP_CLR_FD) = 0 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 416 [pid 412] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 413] ioctl(4, LOOP_SET_FD, 3 [pid 412] <... openat resumed>) = 4 [pid 294] <... restart_syscall resumed>) = 0 [pid 413] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 412] ioctl(4, LOOP_SET_FD, 3 [pid 413] close(4 [pid 412] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 413] <... close resumed>) = 0 [pid 412] ioctl(4, LOOP_CLR_FD [pid 413] close(3 [pid 414] ioctl(4, LOOP_SET_FD, 3 [pid 413] <... close resumed>) = 0 [pid 412] <... ioctl resumed>) = 0 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 414] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 413] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... openat resumed>) = 3 [pid 414] close(4 [pid 413] <... futex resumed>) = 1 [pid 411] <... futex resumed>) = 0 [pid 294] ioctl(3, LOOP_CLR_FD [pid 414] <... close resumed>) = 0 [pid 413] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 411] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... ioctl resumed>) = 0 [pid 414] close(3 [pid 413] <... open resumed>) = 3 [pid 411] <... futex resumed>) = 0 [pid 294] close(3 [pid 415] set_robust_list(0x5555573645e0, 24 [pid 414] <... close resumed>) = 0 [pid 411] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 413] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 412] ioctl(4, LOOP_SET_FD, 3 [pid 294] <... close resumed>) = 0 [pid 414] <... futex resumed>) = 1 [pid 413] <... futex resumed>) = 1 [pid 412] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 411] <... futex resumed>) = 0 [pid 410] <... futex resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 414] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 413] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 412] close(4 [pid 411] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 410] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 414] <... open resumed>) = 3 [pid 413] <... open resumed>) = 4 [pid 412] <... close resumed>) = 0 [pid 411] <... futex resumed>) = 0 [pid 410] <... futex resumed>) = 0 [pid 414] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 413] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 412] close(3 [pid 411] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 417 ./strace-static-x86_64: Process 417 attached ./strace-static-x86_64: Process 416 attached [pid 415] <... set_robust_list resumed>) = 0 [pid 414] <... futex resumed>) = 0 [pid 413] <... futex resumed>) = 0 [pid 412] <... close resumed>) = 0 [pid 411] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 410] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 417] set_robust_list(0x5555573645e0, 24 [pid 416] set_robust_list(0x5555573645e0, 24 [pid 415] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 414] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 413] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 412] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 410] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 417] <... set_robust_list resumed>) = 0 [pid 416] <... set_robust_list resumed>) = 0 [pid 415] <... prctl resumed>) = 0 [pid 414] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 413] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 412] <... futex resumed>) = 1 [pid 411] <... futex resumed>) = 0 [pid 410] <... futex resumed>) = 0 [pid 409] <... futex resumed>) = 0 [pid 417] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 416] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 415] setpgid(0, 0 [pid 414] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 413] ftruncate(4, 33587195 [pid 412] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 411] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 409] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 417] <... prctl resumed>) = 0 [pid 416] <... prctl resumed>) = 0 [pid 415] <... setpgid resumed>) = 0 [pid 414] <... open resumed>) = 4 [pid 413] <... ftruncate resumed>) = 0 [pid 412] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 409] <... futex resumed>) = 0 [pid 417] setpgid(0, 0 [pid 416] setpgid(0, 0 [pid 415] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 414] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 413] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 417] <... setpgid resumed>) = 0 [pid 416] <... setpgid resumed>) = 0 [pid 415] <... openat resumed>) = 3 [pid 414] <... futex resumed>) = 1 [pid 413] <... futex resumed>) = 1 [pid 412] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 411] <... futex resumed>) = 0 [pid 410] <... futex resumed>) = 0 [pid 409] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 417] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 416] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 415] write(3, "1000", 4 [pid 414] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 413] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 412] <... open resumed>) = 3 [pid 411] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 410] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 417] <... openat resumed>) = 3 [pid 416] <... openat resumed>) = 3 [pid 415] <... write resumed>) = 4 [pid 414] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 413] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 412] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = 0 [pid 410] <... futex resumed>) = 0 [pid 417] write(3, "1000", 4 [pid 416] write(3, "1000", 4 [pid 415] close(3 [pid 414] ftruncate(4, 33587195 [pid 413] sendfile(3, 4, NULL, 4 [pid 412] <... futex resumed>) = 1 [pid 411] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 409] <... futex resumed>) = 0 [pid 414] <... ftruncate resumed>) = 0 [pid 412] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 409] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 414] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 412] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 409] <... futex resumed>) = 0 [pid 414] <... futex resumed>) = 1 [pid 412] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 410] <... futex resumed>) = 0 [pid 409] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 414] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 412] <... open resumed>) = 4 [pid 410] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 414] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 412] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 410] <... futex resumed>) = 0 [pid 414] sendfile(3, 4, NULL, 4 [pid 412] <... futex resumed>) = 1 [pid 410] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 409] <... futex resumed>) = 0 [pid 412] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 409] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 412] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 409] <... futex resumed>) = 0 [pid 412] ftruncate(4, 33587195 [pid 409] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 417] <... write resumed>) = 4 [pid 416] <... write resumed>) = 4 [pid 415] <... close resumed>) = 0 [pid 417] close(3 [pid 416] close(3 [pid 415] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 417] <... close resumed>) = 0 [pid 416] <... close resumed>) = 0 [pid 415] <... futex resumed>) = 0 [pid 417] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 416] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 417] <... futex resumed>) = 0 [pid 416] <... futex resumed>) = 0 [pid 415] <... mmap resumed>) = 0x7f562f33a000 [pid 417] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 416] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 415] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 417] <... mmap resumed>) = 0x7f562f33a000 [pid 416] <... mmap resumed>) = 0x7f562f33a000 [pid 415] <... mprotect resumed>) = 0 [pid 417] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 416] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 415] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 417] <... mprotect resumed>) = 0 [pid 416] <... mprotect resumed>) = 0 [pid 417] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 416] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 415] <... clone resumed>, parent_tid=[418], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 418 [pid 415] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 417] <... clone resumed>, parent_tid=[419], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 419 [pid 416] <... clone resumed>, parent_tid=[420], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 420 [pid 415] <... futex resumed>) = 0 [pid 417] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 416] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 417] <... futex resumed>) = 0 [pid 416] <... futex resumed>) = 0 [pid 417] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 416] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 420 attached [pid 420] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 420] memfd_create("syzkaller", 0) = 3 [pid 420] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 414] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 413] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 412] <... ftruncate resumed>) = 0 [pid 414] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 413] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 412] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 414] <... futex resumed>) = 1 [pid 413] <... futex resumed>) = 1 [pid 412] <... futex resumed>) = 1 [pid 411] <... futex resumed>) = 0 [pid 410] <... futex resumed>) = 0 [pid 409] <... futex resumed>) = 0 [pid 414] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 413] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 412] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 411] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 410] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 414] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 413] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 412] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 411] <... futex resumed>) = 0 [pid 410] <... futex resumed>) = 0 [pid 409] <... futex resumed>) = 0 [pid 414] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 413] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 412] sendfile(3, 4, NULL, 4 [pid 411] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 409] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 412] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 412] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 409] <... futex resumed>) = 0 [pid 420] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 409] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 420] <... write resumed>) = 1048576 [pid 420] munmap(0x7f5626f3a000, 1048576) = 0 [pid 420] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 420] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 420] ioctl(4, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 418 attached [pid 418] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 418] memfd_create("syzkaller", 0) = 3 [pid 418] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 420] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 420] close(4) = 0 [pid 420] close(3) = 0 [pid 420] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 416] <... futex resumed>) = 0 [pid 416] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 416] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 420] <... futex resumed>) = 1 [pid 420] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 420] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 416] <... futex resumed>) = 0 [pid 416] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 416] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 420] <... futex resumed>) = 1 [pid 420] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 420] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 416] <... futex resumed>) = 0 [pid 416] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 416] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 420] <... futex resumed>) = 1 [pid 420] ftruncate(4, 33587195./strace-static-x86_64: Process 419 attached ) = 0 [pid 420] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 416] <... futex resumed>) = 0 [pid 416] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 416] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 420] <... futex resumed>) = 1 [pid 420] sendfile(3, 4, NULL, 4) = -1 EINVAL (Invalid argument) [pid 420] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 416] <... futex resumed>) = 0 [pid 416] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 416] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 420] <... futex resumed>) = 1 [pid 420] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 419] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 419] memfd_create("syzkaller", 0) = 3 [pid 419] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 420] <... mmap resumed>) = 0x20000000 [pid 420] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 416] <... futex resumed>) = 0 [pid 416] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 416] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 420] <... futex resumed>) = 1 [pid 420] madvise(0x20000000, 6291467, MADV_REMOVE [pid 413] <... mmap resumed>) = 0x20000000 [pid 414] <... mmap resumed>) = 0x20000000 [pid 412] <... mmap resumed>) = 0x20000000 [pid 420] <... madvise resumed>) = 0 [pid 419] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 418] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 414] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 413] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 410] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 411] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 410] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = 0 [pid 410] <... futex resumed>) = 0 [pid 411] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 413] <... futex resumed>) = 1 [pid 412] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 411] <... futex resumed>) = 0 [pid 410] <... futex resumed>) = 0 [pid 414] <... futex resumed>) = 1 [pid 411] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} [pid 410] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=49000000} [pid 414] madvise(0x20000000, 6291467, MADV_REMOVE [pid 413] madvise(0x20000000, 6291467, MADV_REMOVE [pid 412] <... futex resumed>) = 1 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 420] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] <... futex resumed>) = 0 [pid 416] <... futex resumed>) = 0 [pid 409] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 416] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 416] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 420] <... futex resumed>) = 1 [pid 412] madvise(0x20000000, 6291467, MADV_REMOVE [pid 420] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 413] <... madvise resumed>) = 0 [pid 413] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 411] <... futex resumed>) = 0 [pid 411] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 411] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 412] <... madvise resumed>) = 0 [pid 414] <... madvise resumed>) = 0 [pid 412] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 413] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 420] <... openat resumed>) = 5 [pid 420] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 416] <... futex resumed>) = 0 [pid 416] exit_group(0) = ? [pid 420] <... futex resumed>) = ? [pid 414] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 412] <... futex resumed>) = 1 [pid 409] <... futex resumed>) = 0 [pid 409] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 414] <... futex resumed>) = 1 [pid 410] <... futex resumed>) = 0 [pid 409] <... futex resumed>) = 0 [pid 412] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 410] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 409] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 410] <... futex resumed>) = 0 [pid 410] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 413] <... openat resumed>) = 5 [pid 414] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 412] <... openat resumed>) = 5 [pid 413] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 411] <... futex resumed>) = 0 [pid 413] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 411] exit_group(0 [pid 413] <... futex resumed>) = ? [pid 411] <... exit_group resumed>) = ? [pid 413] +++ exited with 0 +++ [pid 411] +++ exited with 0 +++ [pid 414] <... openat resumed>) = 5 [pid 412] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=411, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 414] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 412] <... futex resumed>) = 1 [pid 409] <... futex resumed>) = 0 [pid 409] exit_group(0) = ? [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 410] <... futex resumed>) = 0 [pid 296] ioctl(3, LOOP_CLR_FD [pid 414] <... futex resumed>) = 1 [pid 410] exit_group(0 [pid 296] <... ioctl resumed>) = 0 [pid 410] <... exit_group resumed>) = ? [pid 296] close(3 [pid 420] +++ exited with 0 +++ [pid 419] <... write resumed>) = 1048576 [pid 418] <... write resumed>) = 1048576 [pid 416] +++ exited with 0 +++ [pid 412] +++ exited with 0 +++ [pid 409] +++ exited with 0 +++ [pid 296] <... close resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=409, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=416, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 421 [pid 295] <... openat resumed>) = 3 [pid 293] <... openat resumed>) = 3 [pid 295] ioctl(3, LOOP_CLR_FD [pid 293] ioctl(3, LOOP_CLR_FD [pid 295] <... ioctl resumed>) = 0 [pid 293] <... ioctl resumed>) = 0 [pid 295] close(3 [pid 293] close(3./strace-static-x86_64: Process 421 attached [pid 419] munmap(0x7f5626f3a000, 1048576 [pid 418] munmap(0x7f5626f3a000, 1048576 [pid 414] +++ exited with 0 +++ [pid 410] +++ exited with 0 +++ [pid 295] <... close resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 418] <... munmap resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=410, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 418] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 418] ioctl(4, LOOP_SET_FD, 3 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 418] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 422 [pid 291] <... openat resumed>) = 3 [pid 419] <... munmap resumed>) = 0 [pid 418] ioctl(4, LOOP_CLR_FD [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 423 [pid 291] ioctl(3, LOOP_CLR_FD [pid 418] <... ioctl resumed>) = 0 [pid 291] <... ioctl resumed>) = 0 [pid 419] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 291] close(3 [pid 419] <... openat resumed>) = 4 [pid 291] <... close resumed>) = 0 [pid 419] ioctl(4, LOOP_SET_FD, 3 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 419] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 419] ioctl(4, LOOP_CLR_FD [pid 418] ioctl(4, LOOP_SET_FD, 3 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 424 [pid 419] <... ioctl resumed>) = 0 [pid 418] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 418] close(4) = 0 [pid 418] close(3) = 0 [pid 419] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 419] close(4) = 0 [pid 419] close(3 [pid 418] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 423 attached ./strace-static-x86_64: Process 422 attached [pid 419] <... close resumed>) = 0 [pid 418] <... futex resumed>) = 1 [pid 415] <... futex resumed>) = 0 [pid 415] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 423] set_robust_list(0x5555573645e0, 24 [pid 415] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] <... set_robust_list resumed>) = 0 [pid 422] set_robust_list(0x5555573645e0, 24 [pid 423] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 422] <... set_robust_list resumed>) = 0 [pid 421] set_robust_list(0x5555573645e0, 24 [pid 418] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 423] <... prctl resumed>) = 0 [pid 422] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 423] setpgid(0, 0 [pid 422] <... prctl resumed>) = 0 [pid 421] <... set_robust_list resumed>) = 0 [pid 419] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... open resumed>) = 3 [pid 423] <... setpgid resumed>) = 0 [pid 422] setpgid(0, 0 [pid 423] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 422] <... setpgid resumed>) = 0 [pid 421] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 419] <... futex resumed>) = 1 [pid 418] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 417] <... futex resumed>) = 0 [pid 423] <... openat resumed>) = 3 [pid 417] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 422] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 417] <... futex resumed>) = 0 [pid 423] write(3, "1000", 4 [pid 422] <... openat resumed>) = 3 [pid 423] <... write resumed>) = 4 [pid 422] write(3, "1000", 4 [pid 417] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] close(3 [pid 422] <... write resumed>) = 4 [pid 423] <... close resumed>) = 0 [pid 422] close(3 [pid 423] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 422] <... close resumed>) = 0 [pid 423] <... futex resumed>) = 0 [pid 422] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 423] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 422] <... futex resumed>) = 0 [pid 423] <... mmap resumed>) = 0x7f562f33a000 [pid 422] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 421] <... prctl resumed>) = 0 [pid 419] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 418] <... futex resumed>) = 1 [pid 415] <... futex resumed>) = 0 [pid 423] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 422] <... mmap resumed>) = 0x7f562f33a000 [pid 421] setpgid(0, 0 [pid 419] <... open resumed>) = 3 [pid 418] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 415] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 423] <... mprotect resumed>) = 0 [pid 422] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 421] <... setpgid resumed>) = 0 [pid 419] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 421] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 419] <... futex resumed>) = 1 [pid 418] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 421] <... openat resumed>) = 3 [pid 419] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 418] <... open resumed>) = 4 [pid 421] write(3, "1000", 4 [pid 418] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 421] <... write resumed>) = 4 [pid 418] <... futex resumed>) = 0 [pid 421] close(3 [pid 418] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 421] <... close resumed>) = 0 [pid 421] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 421] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 421] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 423] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 422] <... mprotect resumed>) = 0 [pid 418] <... futex resumed>) = 0 [pid 417] <... futex resumed>) = 0 [pid 415] <... futex resumed>) = 1 ./strace-static-x86_64: Process 424 attached [pid 421] <... mprotect resumed>) = 0 [pid 418] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 417] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 424] set_robust_list(0x5555573645e0, 24 [pid 422] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 421] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 419] <... futex resumed>) = 0 [pid 417] <... futex resumed>) = 1 [pid 415] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 424] <... set_robust_list resumed>) = 0 [pid 423] <... clone resumed>, parent_tid=[425], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 425 [pid 419] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 417] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 415] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 423] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 422] <... clone resumed>, parent_tid=[427], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 427 [pid 421] <... clone resumed>, parent_tid=[426], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 426 [pid 419] <... open resumed>) = 4 [pid 418] <... futex resumed>) = 0 [pid 415] <... futex resumed>) = 1 [pid 424] <... prctl resumed>) = 0 [pid 423] <... futex resumed>) = 0 [pid 422] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 421] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 419] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] ftruncate(4, 33587195 [pid 415] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 424] setpgid(0, 0 [pid 423] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 422] <... futex resumed>) = 0 [pid 421] <... futex resumed>) = 0 [pid 419] <... futex resumed>) = 1 [pid 418] <... ftruncate resumed>) = 0 [pid 417] <... futex resumed>) = 0 [pid 424] <... setpgid resumed>) = 0 [pid 422] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 421] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 419] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 418] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 417] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 418] <... futex resumed>) = 1 [pid 417] <... futex resumed>) = 0 [pid 415] <... futex resumed>) = 0 [pid 424] <... openat resumed>) = 3 [pid 419] ftruncate(4, 33587195 [pid 418] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 417] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 415] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] write(3, "1000", 4 [pid 419] <... ftruncate resumed>) = 0 [pid 418] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 415] <... futex resumed>) = 0 ./strace-static-x86_64: Process 427 attached ./strace-static-x86_64: Process 426 attached ./strace-static-x86_64: Process 425 attached [pid 424] <... write resumed>) = 4 [pid 419] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 427] set_robust_list(0x7f562f35a9e0, 24 [pid 426] set_robust_list(0x7f562f35a9e0, 24 [pid 425] set_robust_list(0x7f562f35a9e0, 24 [pid 427] <... set_robust_list resumed>) = 0 [pid 426] <... set_robust_list resumed>) = 0 [pid 425] <... set_robust_list resumed>) = 0 [pid 427] memfd_create("syzkaller", 0 [pid 426] memfd_create("syzkaller", 0 [pid 425] memfd_create("syzkaller", 0 [pid 427] <... memfd_create resumed>) = 3 [pid 426] <... memfd_create resumed>) = 3 [pid 425] <... memfd_create resumed>) = 3 [pid 427] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 426] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 425] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 427] <... mmap resumed>) = 0x7f5626f3a000 [pid 426] <... mmap resumed>) = 0x7f5626f3a000 [pid 425] <... mmap resumed>) = 0x7f5626f3a000 [pid 424] close(3 [pid 419] <... futex resumed>) = 1 [pid 418] sendfile(3, 4, NULL, 4 [pid 417] <... futex resumed>) = 0 [pid 415] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 424] <... close resumed>) = 0 [pid 419] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 417] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 418] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 417] <... futex resumed>) = 0 [pid 424] <... futex resumed>) = 0 [pid 419] sendfile(3, 4, NULL, 4 [pid 418] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 417] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 424] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 419] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 418] <... futex resumed>) = 1 [pid 415] <... futex resumed>) = 0 [pid 424] <... mmap resumed>) = 0x7f562f33a000 [pid 419] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 415] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 419] <... futex resumed>) = 1 [pid 418] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 417] <... futex resumed>) = 0 [pid 415] <... futex resumed>) = 0 [pid 424] <... mprotect resumed>) = 0 [pid 419] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 418] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 417] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 426] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 425] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 424] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 419] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 417] <... futex resumed>) = 0 [pid 427] <... write resumed>) = 1048576 [pid 425] <... write resumed>) = 1048576 [pid 419] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 417] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 428 attached [pid 424] <... clone resumed>, parent_tid=[428], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 428 [pid 424] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 427] munmap(0x7f5626f3a000, 1048576) = 0 [pid 427] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 427] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 427] ioctl(4, LOOP_CLR_FD) = 0 [pid 425] munmap(0x7f5626f3a000, 1048576) = 0 [pid 427] ioctl(4, LOOP_SET_FD, 3 [pid 425] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 427] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 425] <... openat resumed>) = 4 [pid 428] set_robust_list(0x7f562f35a9e0, 24 [pid 427] close(4 [pid 425] ioctl(4, LOOP_SET_FD, 3 [pid 419] <... mmap resumed>) = 0x20000000 [pid 428] <... set_robust_list resumed>) = 0 [pid 426] <... write resumed>) = 1048576 [pid 419] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] <... mmap resumed>) = 0x20000000 [pid 428] memfd_create("syzkaller", 0) = 3 [pid 419] <... futex resumed>) = 1 [pid 417] <... futex resumed>) = 0 [pid 428] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 419] madvise(0x20000000, 6291467, MADV_REMOVE [pid 417] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 428] <... mmap resumed>) = 0x7f5626f3a000 [pid 427] <... close resumed>) = 0 [pid 418] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 417] <... futex resumed>) = 0 [pid 428] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 427] close(3 [pid 426] munmap(0x7f5626f3a000, 1048576 [pid 425] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 418] <... futex resumed>) = 1 [pid 417] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 415] <... futex resumed>) = 0 [pid 428] <... write resumed>) = 1048576 [pid 426] <... munmap resumed>) = 0 [pid 425] ioctl(4, LOOP_CLR_FD [pid 419] <... madvise resumed>) = 0 [pid 415] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 425] <... ioctl resumed>) = 0 [pid 419] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] madvise(0x20000000, 6291467, MADV_REMOVE [pid 415] <... futex resumed>) = 0 [pid 428] munmap(0x7f5626f3a000, 1048576 [pid 427] <... close resumed>) = 0 [pid 426] <... openat resumed>) = 4 [pid 419] <... futex resumed>) = 1 [pid 418] <... madvise resumed>) = 0 [pid 417] <... futex resumed>) = 0 [pid 415] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 428] <... munmap resumed>) = 0 [pid 427] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 417] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 428] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 427] <... futex resumed>) = 1 [pid 418] <... futex resumed>) = 0 [pid 417] <... futex resumed>) = 0 [pid 415] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 428] <... openat resumed>) = 4 [pid 427] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 426] ioctl(4, LOOP_SET_FD, 3 [pid 422] <... futex resumed>) = 0 [pid 419] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 418] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 417] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 415] <... futex resumed>) = 0 [pid 428] ioctl(4, LOOP_SET_FD, 3 [pid 419] <... openat resumed>) = 5 [pid 418] <... openat resumed>) = 5 [pid 415] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 428] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 419] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 418] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 415] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 428] ioctl(4, LOOP_CLR_FD [pid 419] <... futex resumed>) = 1 [pid 418] <... futex resumed>) = 0 [pid 417] <... futex resumed>) = 0 [pid 415] exit_group(0 [pid 428] <... ioctl resumed>) = 0 [pid 419] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 417] exit_group(0 [pid 415] <... exit_group resumed>) = ? [pid 426] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 422] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 419] <... futex resumed>) = ? [pid 418] +++ exited with 0 +++ [pid 417] <... exit_group resumed>) = ? [pid 426] ioctl(4, LOOP_CLR_FD [pid 425] ioctl(4, LOOP_SET_FD, 3 [pid 422] <... futex resumed>) = 1 [pid 427] <... futex resumed>) = 0 [pid 426] <... ioctl resumed>) = 0 [pid 425] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 422] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 415] +++ exited with 0 +++ [pid 425] close(4 [pid 427] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 425] <... close resumed>) = 0 [pid 419] +++ exited with 0 +++ [pid 417] +++ exited with 0 +++ [pid 427] <... open resumed>) = 3 [pid 427] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 427] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 422] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 427] <... open resumed>) = 4 [pid 422] <... futex resumed>) = 0 [pid 427] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 422] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... futex resumed>) = 0 [pid 422] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 427] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 422] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 427] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 422] <... futex resumed>) = 0 [pid 427] ftruncate(4, 33587195 [pid 422] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] <... ftruncate resumed>) = 0 [pid 427] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 422] <... futex resumed>) = 0 [pid 428] ioctl(4, LOOP_SET_FD, 3 [pid 427] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 422] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 428] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 427] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 422] <... futex resumed>) = 0 [pid 428] close(4 [pid 427] sendfile(3, 4, NULL, 4 [pid 422] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 428] <... close resumed>) = 0 [pid 428] close(3) = 0 [pid 428] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 424] <... futex resumed>) = 0 [pid 428] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 424] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 428] <... open resumed>) = 3 [pid 424] <... futex resumed>) = 0 [pid 428] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 428] <... futex resumed>) = 0 [pid 424] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 428] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 424] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 428] <... open resumed>) = 4 [pid 424] <... futex resumed>) = 0 [pid 428] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 428] <... futex resumed>) = 0 [pid 424] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 428] ftruncate(4, 33587195 [pid 424] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 424] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] close(3 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=417, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=415, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 427] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 426] ioctl(4, LOOP_SET_FD, 3 [pid 425] <... close resumed>) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 428] <... ftruncate resumed>) = 0 [pid 427] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 425] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... openat resumed>) = 3 [pid 428] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 427] <... futex resumed>) = 1 [pid 426] close(4 [pid 425] <... futex resumed>) = 1 [pid 423] <... futex resumed>) = 0 [pid 422] <... futex resumed>) = 0 [pid 292] ioctl(3, LOOP_CLR_FD [pid 428] <... futex resumed>) = 1 [pid 427] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 426] <... close resumed>) = 0 [pid 425] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 424] <... futex resumed>) = 0 [pid 423] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 422] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... ioctl resumed>) = 0 [pid 427] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 426] close(3 [pid 425] <... open resumed>) = 3 [pid 424] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 423] <... futex resumed>) = 0 [pid 422] <... futex resumed>) = 0 [pid 292] close(3 [pid 428] sendfile(3, 4, NULL, 4 [pid 427] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 426] <... close resumed>) = 0 [pid 425] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 423] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 422] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 292] <... close resumed>) = 0 [pid 426] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 425] <... futex resumed>) = 0 [pid 423] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 294] <... openat resumed>) = 3 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 426] <... futex resumed>) = 1 [pid 425] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 423] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] ioctl(3, LOOP_CLR_FD [pid 426] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 423] <... futex resumed>) = 0 [pid 294] <... ioctl resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 429 [pid 425] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 423] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] close(3 [pid 425] <... open resumed>) = 4 [pid 294] <... close resumed>) = 0 [pid 425] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 425] <... futex resumed>) = 1 [pid 423] <... futex resumed>) = 0 [pid 425] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 423] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 430 [pid 425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 423] <... futex resumed>) = 0 [pid 425] ftruncate(4, 33587195 [pid 423] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 425] <... ftruncate resumed>) = 0 [pid 424] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] <... futex resumed>) = 0 [pid 428] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 425] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 421] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 428] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = 0 [pid 425] <... futex resumed>) = 1 [pid 423] <... futex resumed>) = 0 [pid 421] <... futex resumed>) = 1 [pid 428] <... futex resumed>) = 1 [pid 426] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 425] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 424] <... futex resumed>) = 0 [pid 423] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 421] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 428] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 426] <... open resumed>) = 3 [pid 425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 424] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 423] <... futex resumed>) = 0 [pid 428] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 426] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 425] sendfile(3, 4, NULL, 4 [pid 423] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 426] <... futex resumed>) = 1 [pid 425] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 426] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 425] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 423] <... futex resumed>) = 0 [pid 425] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 423] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 423] <... futex resumed>) = 0 [pid 425] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 423] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 428] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 424] <... futex resumed>) = 0 [pid 421] <... futex resumed>) = 0 ./strace-static-x86_64: Process 430 attached [pid 430] set_robust_list(0x5555573645e0, 24) = 0 [pid 430] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 430] setpgid(0, 0) = 0 [pid 430] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 424] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 421] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 430] write(3, "1000", 4 [pid 426] <... futex resumed>) = 0 [pid 421] <... futex resumed>) = 1 [pid 430] <... write resumed>) = 4 [pid 426] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 421] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 430] close(3 [pid 426] <... open resumed>) = 4 [pid 430] <... close resumed>) = 0 [pid 426] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 429 attached [pid 430] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = 1 [pid 421] <... futex resumed>) = 0 [pid 430] <... futex resumed>) = 0 [pid 429] set_robust_list(0x5555573645e0, 24 [pid 426] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 421] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 430] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 429] <... set_robust_list resumed>) = 0 [pid 426] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 421] <... futex resumed>) = 0 [pid 430] <... mmap resumed>) = 0x7f562f33a000 [pid 429] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 426] ftruncate(4, 33587195 [pid 421] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 430] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 429] <... prctl resumed>) = 0 [pid 426] <... ftruncate resumed>) = 0 [pid 430] <... mprotect resumed>) = 0 [pid 426] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 430] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 426] <... futex resumed>) = 1 [pid 421] <... futex resumed>) = 0 [pid 426] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 421] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 430] <... clone resumed>, parent_tid=[431], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 431 [pid 426] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 421] <... futex resumed>) = 0 [pid 430] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] sendfile(3, 4, NULL, 4 [pid 421] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 430] <... futex resumed>) = 0 [pid 426] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 430] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 426] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 421] <... futex resumed>) = 0 [pid 426] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 421] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 421] <... futex resumed>) = 0 [pid 426] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 421] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] setpgid(0, 0 [pid 428] <... mmap resumed>) = 0x20000000 [pid 426] <... mmap resumed>) = 0x20000000 [pid 426] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 429] <... setpgid resumed>) = 0 [pid 427] <... mmap resumed>) = 0x20000000 [pid 426] <... futex resumed>) = 1 [pid 421] <... futex resumed>) = 0 [pid 426] madvise(0x20000000, 6291467, MADV_REMOVE [pid 421] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 431 attached [pid 429] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 428] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 427] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 425] <... mmap resumed>) = 0x20000000 [pid 421] <... futex resumed>) = 0 [pid 431] set_robust_list(0x7f562f35a9e0, 24 [pid 429] <... openat resumed>) = 3 [pid 428] <... futex resumed>) = 1 [pid 427] <... futex resumed>) = 1 [pid 424] <... futex resumed>) = 0 [pid 422] <... futex resumed>) = 0 [pid 421] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 431] <... set_robust_list resumed>) = 0 [pid 429] write(3, "1000", 4 [pid 428] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 427] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 425] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 422] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 431] memfd_create("syzkaller", 0 [pid 429] <... write resumed>) = 4 [pid 428] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 427] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 425] <... futex resumed>) = 1 [pid 424] <... futex resumed>) = 0 [pid 423] <... futex resumed>) = 0 [pid 422] <... futex resumed>) = 0 [pid 431] <... memfd_create resumed>) = 3 [pid 429] close(3 [pid 428] madvise(0x20000000, 6291467, MADV_REMOVE [pid 427] madvise(0x20000000, 6291467, MADV_REMOVE [pid 425] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 424] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 422] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 431] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 429] <... close resumed>) = 0 [pid 425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 431] <... mmap resumed>) = 0x7f5626f3a000 [pid 429] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 425] madvise(0x20000000, 6291467, MADV_REMOVE [pid 429] <... futex resumed>) = 0 [pid 428] <... madvise resumed>) = 0 [pid 427] <... madvise resumed>) = 0 [pid 426] <... madvise resumed>) = 0 [pid 423] <... futex resumed>) = 0 [pid 429] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 428] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 427] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 425] <... madvise resumed>) = 0 [pid 423] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 431] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 429] <... mmap resumed>) = 0x7f562f33a000 [pid 428] <... futex resumed>) = 1 [pid 427] <... futex resumed>) = 1 [pid 426] <... futex resumed>) = 1 [pid 425] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 424] <... futex resumed>) = 0 [pid 422] <... futex resumed>) = 0 [pid 421] <... futex resumed>) = 0 [pid 429] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 428] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 427] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 426] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 425] <... futex resumed>) = 0 [pid 424] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 423] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 422] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 421] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 429] <... mprotect resumed>) = 0 [pid 428] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 427] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 426] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 425] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 424] <... futex resumed>) = 0 [pid 423] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 422] <... futex resumed>) = 0 [pid 421] <... futex resumed>) = 0 [pid 431] <... write resumed>) = 1048576 [pid 429] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 423] <... futex resumed>) = 0 [pid 421] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 427] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 426] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 425] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 424] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 423] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 428] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 427] <... openat resumed>) = 5 [pid 426] <... openat resumed>) = 5 [pid 425] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 422] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] <... clone resumed>, parent_tid=[432], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 432 [pid 428] <... openat resumed>) = 5 [pid 427] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 426] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 425] <... openat resumed>) = 5 [pid 422] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 429] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 428] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 427] <... futex resumed>) = 0 [pid 426] <... futex resumed>) = 1 [pid 425] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 422] exit_group(0 [pid 421] <... futex resumed>) = 0 [pid 431] munmap(0x7f5626f3a000, 1048576./strace-static-x86_64: Process 432 attached [pid 429] <... futex resumed>) = 0 [pid 428] <... futex resumed>) = 1 [pid 426] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 425] <... futex resumed>) = 1 [pid 424] <... futex resumed>) = 0 [pid 423] <... futex resumed>) = 0 [pid 422] <... exit_group resumed>) = ? [pid 421] exit_group(0 [pid 429] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 428] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 426] <... futex resumed>) = ? [pid 425] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 424] exit_group(0 [pid 423] exit_group(0 [pid 421] <... exit_group resumed>) = ? [pid 428] <... futex resumed>) = ? [pid 427] +++ exited with 0 +++ [pid 426] +++ exited with 0 +++ [pid 425] <... futex resumed>) = ? [pid 424] <... exit_group resumed>) = ? [pid 423] <... exit_group resumed>) = ? [pid 422] +++ exited with 0 +++ [pid 421] +++ exited with 0 +++ [pid 431] <... munmap resumed>) = 0 [pid 432] set_robust_list(0x7f562f35a9e0, 24 [pid 428] +++ exited with 0 +++ [pid 425] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=421, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=422, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 296] ioctl(3, LOOP_CLR_FD) = 0 [pid 296] close(3) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... restart_syscall resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 433 [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 423] +++ exited with 0 +++ [pid 295] <... openat resumed>) = 3 [pid 295] ioctl(3, LOOP_CLR_FD [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=423, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] <... ioctl resumed>) = 0 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 295] close(3) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 434 ./strace-static-x86_64: Process 433 attached [pid 433] set_robust_list(0x5555573645e0, 24 [pid 293] <... restart_syscall resumed>) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 293] ioctl(3, LOOP_CLR_FD) = 0 [pid 293] close(3) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 435 [pid 433] <... set_robust_list resumed>) = 0 [pid 433] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 433] setpgid(0, 0) = 0 [pid 433] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 433] write(3, "1000", 4) = 4 [pid 433] close(3) = 0 ./strace-static-x86_64: Process 435 attached ./strace-static-x86_64: Process 434 attached [pid 432] <... set_robust_list resumed>) = 0 [pid 431] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 424] +++ exited with 0 +++ [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=424, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 291] ioctl(3, LOOP_CLR_FD) = 0 [pid 291] close(3) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 436 [pid 433] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 431] <... openat resumed>) = 4 [pid 433] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 431] ioctl(4, LOOP_SET_FD, 3 [pid 433] <... mmap resumed>) = 0x7f562f33a000 [pid 431] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 433] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 431] ioctl(4, LOOP_CLR_FD [pid 433] <... mprotect resumed>) = 0 [pid 431] <... ioctl resumed>) = 0 [pid 433] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[437], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 437 [pid 433] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 433] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 431] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 434] set_robust_list(0x5555573645e0, 24 [pid 431] close(4 [pid 434] <... set_robust_list resumed>) = 0 [pid 432] memfd_create("syzkaller", 0 [pid 431] <... close resumed>) = 0 [pid 434] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 432] <... memfd_create resumed>) = 3 [pid 431] close(3./strace-static-x86_64: Process 436 attached [pid 434] <... prctl resumed>) = 0 [pid 432] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 431] <... close resumed>) = 0 ./strace-static-x86_64: Process 437 attached [pid 436] set_robust_list(0x5555573645e0, 24 [pid 434] setpgid(0, 0 [pid 432] <... mmap resumed>) = 0x7f5626f3a000 [pid 437] set_robust_list(0x7f562f35a9e0, 24 [pid 436] <... set_robust_list resumed>) = 0 [pid 434] <... setpgid resumed>) = 0 [pid 437] <... set_robust_list resumed>) = 0 [pid 436] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 434] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 431] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 437] memfd_create("syzkaller", 0 [pid 436] <... prctl resumed>) = 0 [pid 434] <... openat resumed>) = 3 [pid 431] <... futex resumed>) = 1 [pid 430] <... futex resumed>) = 0 [pid 437] <... memfd_create resumed>) = 3 [pid 436] setpgid(0, 0 [pid 435] set_robust_list(0x5555573645e0, 24 [pid 434] write(3, "1000", 4 [pid 431] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 430] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 437] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 436] <... setpgid resumed>) = 0 [pid 430] <... futex resumed>) = 0 [pid 437] <... mmap resumed>) = 0x7f5626f3a000 [pid 436] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 435] <... set_robust_list resumed>) = 0 [pid 430] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] <... openat resumed>) = 3 [pid 434] <... write resumed>) = 4 [pid 432] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 431] <... open resumed>) = 3 [pid 436] write(3, "1000", 4 [pid 435] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 434] close(3 [pid 431] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 437] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 436] <... write resumed>) = 4 [pid 434] <... close resumed>) = 0 [pid 431] <... futex resumed>) = 1 [pid 430] <... futex resumed>) = 0 [pid 436] close(3 [pid 435] <... prctl resumed>) = 0 [pid 434] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 431] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 430] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 436] <... close resumed>) = 0 [pid 435] setpgid(0, 0 [pid 434] <... futex resumed>) = 0 [pid 431] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 430] <... futex resumed>) = 0 [pid 436] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 435] <... setpgid resumed>) = 0 [pid 434] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 431] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 430] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 436] <... futex resumed>) = 0 [pid 435] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 434] <... mmap resumed>) = 0x7f562f33a000 [pid 431] <... open resumed>) = 4 [pid 434] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 431] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 436] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 435] <... openat resumed>) = 3 [pid 434] <... mprotect resumed>) = 0 [pid 431] <... futex resumed>) = 1 [pid 430] <... futex resumed>) = 0 [pid 436] <... mmap resumed>) = 0x7f562f33a000 [pid 435] write(3, "1000", 4 [pid 434] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 431] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 430] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 436] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 435] <... write resumed>) = 4 [pid 431] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 430] <... futex resumed>) = 0 [pid 437] <... write resumed>) = 1048576 [pid 436] <... mprotect resumed>) = 0 [pid 435] close(3 [pid 434] <... clone resumed>, parent_tid=[438], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 438 [pid 431] ftruncate(4, 33587195 [pid 430] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 438 attached [pid 437] munmap(0x7f5626f3a000, 1048576 [pid 436] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 435] <... close resumed>) = 0 [pid 434] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] <... write resumed>) = 1048576 [pid 438] set_robust_list(0x7f562f35a9e0, 24 [pid 437] <... munmap resumed>) = 0 [pid 435] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 434] <... futex resumed>) = 0 [pid 432] munmap(0x7f5626f3a000, 1048576 [pid 431] <... ftruncate resumed>) = 0 ./strace-static-x86_64: Process 439 attached [pid 438] <... set_robust_list resumed>) = 0 [pid 437] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 436] <... clone resumed>, parent_tid=[439], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 439 [pid 435] <... futex resumed>) = 0 [pid 434] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 432] <... munmap resumed>) = 0 [pid 438] memfd_create("syzkaller", 0 [pid 437] <... openat resumed>) = 4 [pid 436] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 435] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 432] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 431] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 438] <... memfd_create resumed>) = 3 [pid 437] ioctl(4, LOOP_SET_FD, 3 [pid 436] <... futex resumed>) = 0 [pid 435] <... mmap resumed>) = 0x7f562f33a000 [pid 432] <... openat resumed>) = 4 [pid 438] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 437] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 436] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 435] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 432] ioctl(4, LOOP_SET_FD, 3 [pid 438] <... mmap resumed>) = 0x7f5626f3a000 [pid 437] ioctl(4, LOOP_CLR_FD [pid 435] <... mprotect resumed>) = 0 [pid 432] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 439] set_robust_list(0x7f562f35a9e0, 24 [pid 437] <... ioctl resumed>) = 0 [pid 431] <... futex resumed>) = 1 [pid 430] <... futex resumed>) = 0 [pid 435] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 439] <... set_robust_list resumed>) = 0 [pid 432] ioctl(4, LOOP_CLR_FD [pid 431] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 430] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 439] memfd_create("syzkaller", 0 [pid 432] <... ioctl resumed>) = 0 [pid 431] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 430] <... futex resumed>) = 0 [pid 439] <... memfd_create resumed>) = 3 [pid 435] <... clone resumed>, parent_tid=[440], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 440 [pid 431] sendfile(3, 4, NULL, 4 [pid 430] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 440 attached [pid 439] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 438] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 437] ioctl(4, LOOP_SET_FD, 3 [pid 435] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] set_robust_list(0x7f562f35a9e0, 24 [pid 439] <... mmap resumed>) = 0x7f5626f3a000 [pid 437] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 435] <... futex resumed>) = 0 [pid 431] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 440] <... set_robust_list resumed>) = 0 [pid 438] <... write resumed>) = 1048576 [pid 437] close(4 [pid 435] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 432] ioctl(4, LOOP_SET_FD, 3 [pid 431] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 439] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 437] <... close resumed>) = 0 [pid 431] <... futex resumed>) = 1 [pid 430] <... futex resumed>) = 0 [pid 440] memfd_create("syzkaller", 0 [pid 438] munmap(0x7f5626f3a000, 1048576 [pid 437] close(3 [pid 432] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 431] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 430] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] <... memfd_create resumed>) = 3 [pid 438] <... munmap resumed>) = 0 [pid 431] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 430] <... futex resumed>) = 0 [pid 440] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 431] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 430] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] <... mmap resumed>) = 0x7f5626f3a000 [pid 439] <... write resumed>) = 1048576 [pid 438] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 437] <... close resumed>) = 0 [pid 432] close(4 [pid 439] munmap(0x7f5626f3a000, 1048576 [pid 438] <... openat resumed>) = 4 [pid 437] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] <... close resumed>) = 0 [pid 439] <... munmap resumed>) = 0 [pid 438] ioctl(4, LOOP_SET_FD, 3 [pid 437] <... futex resumed>) = 1 [pid 433] <... futex resumed>) = 0 [pid 432] close(3 [pid 439] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 438] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 437] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 433] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] <... close resumed>) = 0 [pid 439] <... openat resumed>) = 4 [pid 438] ioctl(4, LOOP_CLR_FD [pid 437] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 433] <... futex resumed>) = 0 [pid 432] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 439] ioctl(4, LOOP_SET_FD, 3 [pid 438] <... ioctl resumed>) = 0 [pid 437] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 433] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] <... futex resumed>) = 1 [pid 429] <... futex resumed>) = 0 [pid 440] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 439] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 437] <... open resumed>) = 3 [pid 432] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 429] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 439] ioctl(4, LOOP_CLR_FD [pid 437] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 429] <... futex resumed>) = 0 [pid 439] <... ioctl resumed>) = 0 [pid 437] <... futex resumed>) = 1 [pid 433] <... futex resumed>) = 0 [pid 432] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 429] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] ioctl(4, LOOP_SET_FD, 3 [pid 437] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 433] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] <... open resumed>) = 3 [pid 438] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 437] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 433] <... futex resumed>) = 0 [pid 432] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 438] close(4 [pid 437] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 433] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] <... futex resumed>) = 1 [pid 429] <... futex resumed>) = 0 [pid 440] <... write resumed>) = 1048576 [pid 438] <... close resumed>) = 0 [pid 437] <... open resumed>) = 4 [pid 432] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 429] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] munmap(0x7f5626f3a000, 1048576 [pid 439] ioctl(4, LOOP_SET_FD, 3 [pid 438] close(3 [pid 437] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 429] <... futex resumed>) = 0 [pid 440] <... munmap resumed>) = 0 [pid 439] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 438] <... close resumed>) = 0 [pid 437] <... futex resumed>) = 1 [pid 433] <... futex resumed>) = 0 [pid 432] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 429] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 439] close(4 [pid 438] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 437] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 433] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] <... open resumed>) = 4 [pid 440] <... openat resumed>) = 4 [pid 439] <... close resumed>) = 0 [pid 438] <... futex resumed>) = 1 [pid 437] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 434] <... futex resumed>) = 0 [pid 433] <... futex resumed>) = 0 [pid 432] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] ioctl(4, LOOP_SET_FD, 3 [pid 439] close(3 [pid 438] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 437] ftruncate(4, 33587195 [pid 434] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] <... futex resumed>) = 1 [pid 429] <... futex resumed>) = 0 [pid 440] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 438] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 437] <... ftruncate resumed>) = 0 [pid 434] <... futex resumed>) = 0 [pid 432] ftruncate(4, 33587195 [pid 429] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] ioctl(4, LOOP_CLR_FD [pid 438] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 437] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 434] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] <... ioctl resumed>) = 0 [pid 438] <... open resumed>) = 3 [pid 437] <... futex resumed>) = 1 [pid 433] <... futex resumed>) = 0 [pid 432] <... ftruncate resumed>) = 0 [pid 429] <... futex resumed>) = 0 [pid 438] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 437] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 433] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 429] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 438] <... futex resumed>) = 1 [pid 437] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 434] <... futex resumed>) = 0 [pid 433] <... futex resumed>) = 0 [pid 432] <... futex resumed>) = 0 [pid 429] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 439] <... close resumed>) = 0 [pid 438] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 437] sendfile(3, 4, NULL, 4 [pid 434] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 429] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] ioctl(4, LOOP_SET_FD, 3 [pid 439] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 438] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 437] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 434] <... futex resumed>) = 0 [pid 432] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 429] <... futex resumed>) = 0 [pid 440] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 439] <... futex resumed>) = 1 [pid 438] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 437] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 436] <... futex resumed>) = 0 [pid 434] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] sendfile(3, 4, NULL, 4 [pid 429] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] close(4 [pid 439] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 438] <... open resumed>) = 4 [pid 437] <... futex resumed>) = 1 [pid 436] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = 0 [pid 432] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 431] <... mmap resumed>) = 0x20000000 [pid 440] <... close resumed>) = 0 [pid 438] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 437] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 436] <... futex resumed>) = 0 [pid 433] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] close(3 [pid 438] <... futex resumed>) = 1 [pid 437] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 436] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 0 [pid 433] <... futex resumed>) = 0 [pid 432] <... futex resumed>) = 1 [pid 431] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 429] <... futex resumed>) = 0 [pid 440] <... close resumed>) = 0 [pid 434] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 431] <... futex resumed>) = 1 [pid 430] <... futex resumed>) = 0 [pid 440] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 434] <... futex resumed>) = 0 [pid 431] madvise(0x20000000, 6291467, MADV_REMOVE [pid 430] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] <... futex resumed>) = 1 [pid 438] ftruncate(4, 33587195 [pid 437] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 435] <... futex resumed>) = 0 [pid 434] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 430] <... futex resumed>) = 0 [pid 429] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 435] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 430] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 429] <... futex resumed>) = 0 [pid 440] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 435] <... futex resumed>) = 0 [pid 429] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 435] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] <... open resumed>) = 3 [pid 440] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 435] <... futex resumed>) = 0 [pid 440] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 435] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 435] <... futex resumed>) = 0 [pid 440] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 435] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] <... open resumed>) = 4 [pid 440] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 435] <... futex resumed>) = 0 [pid 440] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 435] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 439] <... open resumed>) = 3 [pid 435] <... futex resumed>) = 0 [pid 440] ftruncate(4, 33587195 [pid 435] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 439] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 436] <... futex resumed>) = 0 [pid 436] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 439] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 436] <... futex resumed>) = 0 [pid 436] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 439] <... open resumed>) = 4 [pid 439] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 436] <... futex resumed>) = 0 [pid 439] ftruncate(4, 33587195 [pid 436] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 436] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 431] <... madvise resumed>) = 0 [pid 431] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 430] <... futex resumed>) = 0 [pid 431] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 430] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 431] <... openat resumed>) = 5 [pid 430] <... futex resumed>) = 0 [pid 431] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 430] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 431] <... futex resumed>) = 0 [pid 430] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 431] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 430] exit_group(0 [pid 431] <... futex resumed>) = ? [pid 430] <... exit_group resumed>) = ? [pid 431] +++ exited with 0 +++ [pid 430] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=430, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 294] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 438] <... ftruncate resumed>) = 0 [pid 438] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 438] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 434] <... futex resumed>) = 0 [pid 440] <... ftruncate resumed>) = 0 [pid 434] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 440] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 439] <... ftruncate resumed>) = 0 [pid 438] <... futex resumed>) = 0 [pid 434] <... futex resumed>) = 1 [pid 294] <... openat resumed>) = 3 [pid 440] <... futex resumed>) = 1 [pid 439] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 438] sendfile(3, 4, NULL, 4 [pid 435] <... futex resumed>) = 0 [pid 434] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] ioctl(3, LOOP_CLR_FD [pid 440] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 439] <... futex resumed>) = 1 [pid 436] <... futex resumed>) = 0 [pid 294] <... ioctl resumed>) = 0 [pid 440] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 439] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 436] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 435] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] close(3 [pid 440] sendfile(3, 4, NULL, 4 [pid 439] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 438] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 436] <... futex resumed>) = 0 [pid 435] <... futex resumed>) = 0 [pid 294] <... close resumed>) = 0 [pid 440] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 439] sendfile(3, 4, NULL, 4 [pid 438] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 436] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 435] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 440] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 439] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 438] <... futex resumed>) = 1 [pid 435] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 434] <... futex resumed>) = 0 [pid 440] <... futex resumed>) = 0 [pid 439] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 438] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 435] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 434] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 441 [pid 440] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 439] <... futex resumed>) = 1 [pid 438] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 436] <... futex resumed>) = 0 [pid 435] <... futex resumed>) = 0 [pid 434] <... futex resumed>) = 0 [pid 439] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 436] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 439] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 436] <... futex resumed>) = 0 [pid 439] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 436] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 441 attached [pid 440] <... mmap resumed>) = 0x20000000 [pid 438] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 437] <... mmap resumed>) = 0x20000000 [pid 435] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 439] <... mmap resumed>) = 0x20000000 [pid 432] <... mmap resumed>) = 0x20000000 [pid 439] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 439] <... futex resumed>) = 1 [pid 436] <... futex resumed>) = 0 [pid 432] <... futex resumed>) = 1 [pid 429] <... futex resumed>) = 0 [pid 439] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 436] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 429] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 439] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 436] <... futex resumed>) = 0 [pid 432] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 429] <... futex resumed>) = 0 [pid 439] madvise(0x20000000, 6291467, MADV_REMOVE [pid 436] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] madvise(0x20000000, 6291467, MADV_REMOVE [pid 429] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 441] set_robust_list(0x5555573645e0, 24 [pid 440] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 438] <... mmap resumed>) = 0x20000000 [pid 437] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 441] <... set_robust_list resumed>) = 0 [pid 440] <... futex resumed>) = 1 [pid 438] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 437] <... futex resumed>) = 0 [pid 435] <... futex resumed>) = 0 [pid 433] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 440] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 438] <... futex resumed>) = 1 [pid 437] madvise(0x20000000, 6291467, MADV_REMOVE [pid 435] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 434] <... futex resumed>) = 0 [pid 433] <... futex resumed>) = 0 [pid 441] <... prctl resumed>) = 0 [pid 440] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 438] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 435] <... futex resumed>) = 0 [pid 434] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 441] setpgid(0, 0 [pid 440] madvise(0x20000000, 6291467, MADV_REMOVE [pid 438] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 435] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 434] <... futex resumed>) = 0 [pid 441] <... setpgid resumed>) = 0 [pid 438] madvise(0x20000000, 6291467, MADV_REMOVE [pid 434] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 441] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 441] write(3, "1000", 4) = 4 [pid 441] close(3) = 0 [pid 441] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 441] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 441] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 441] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[442], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 442 [pid 441] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 441] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 442 attached [pid 442] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 442] memfd_create("syzkaller", 0) = 3 [pid 442] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 442] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 442] munmap(0x7f5626f3a000, 1048576) = 0 [pid 442] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 442] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 442] ioctl(4, LOOP_CLR_FD) = 0 [pid 437] <... madvise resumed>) = 0 [pid 442] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 442] close(4 [pid 432] <... madvise resumed>) = 0 [pid 442] <... close resumed>) = 0 [pid 442] close(3 [pid 440] <... madvise resumed>) = 0 [pid 442] <... close resumed>) = 0 [pid 442] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] <... futex resumed>) = 0 [pid 441] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 441] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... futex resumed>) = 1 [pid 442] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 442] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] <... futex resumed>) = 0 [pid 441] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 438] <... madvise resumed>) = 0 [pid 440] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 437] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 438] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 440] <... futex resumed>) = 1 [pid 438] <... futex resumed>) = 1 [pid 437] <... futex resumed>) = 1 [pid 435] <... futex resumed>) = 0 [pid 434] <... futex resumed>) = 0 [pid 433] <... futex resumed>) = 0 [pid 432] <... futex resumed>) = 1 [pid 429] <... futex resumed>) = 0 [pid 434] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 433] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 434] <... futex resumed>) = 0 [pid 433] <... futex resumed>) = 0 [pid 434] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 433] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... futex resumed>) = 1 [pid 442] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 442] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] <... futex resumed>) = 0 [pid 441] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 441] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... futex resumed>) = 1 [pid 442] ftruncate(4, 33587195) = 0 [pid 442] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] <... futex resumed>) = 0 [pid 441] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 441] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... futex resumed>) = 1 [pid 442] sendfile(3, 4, NULL, 4) = 4 [pid 442] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] <... futex resumed>) = 0 [pid 441] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 441] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 442] <... futex resumed>) = 1 [pid 442] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 435] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 429] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 437] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 435] <... futex resumed>) = 0 [pid 440] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 432] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 429] <... futex resumed>) = 0 [pid 438] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 429] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 437] <... openat resumed>) = 5 [pid 435] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 432] <... openat resumed>) = 5 [pid 440] <... openat resumed>) = 5 [pid 438] <... openat resumed>) = 5 [pid 440] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 438] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 437] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 432] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 440] <... futex resumed>) = 1 [pid 438] <... futex resumed>) = 1 [pid 435] <... futex resumed>) = 0 [pid 434] <... futex resumed>) = 0 [pid 434] exit_group(0) = ? [pid 440] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 437] <... futex resumed>) = 1 [pid 435] exit_group(0 [pid 432] <... futex resumed>) = 1 [pid 429] <... futex resumed>) = 0 [pid 433] <... futex resumed>) = 0 [pid 433] exit_group(0) = ? [pid 438] +++ exited with 0 +++ [pid 434] +++ exited with 0 +++ [pid 429] exit_group(0 [pid 435] <... exit_group resumed>) = ? [pid 429] <... exit_group resumed>) = ? [pid 440] <... futex resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=434, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 295] ioctl(3, LOOP_CLR_FD) = 0 [pid 295] close(3) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 443 [pid 432] +++ exited with 0 +++ [pid 429] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=429, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 292] ioctl(3, LOOP_CLR_FD) = 0 [pid 292] close(3) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 444 [pid 440] +++ exited with 0 +++ [pid 435] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=435, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 437] +++ exited with 0 +++ [pid 433] +++ exited with 0 +++ [pid 293] ioctl(3, LOOP_CLR_FD) = 0 [pid 293] close(3 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=433, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 293] <... close resumed>) = 0 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 444 attached [pid 439] <... madvise resumed>) = 0 [pid 296] <... openat resumed>) = 3 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 445 [pid 439] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] ioctl(3, LOOP_CLR_FD [pid 444] set_robust_list(0x5555573645e0, 24) = 0 [pid 439] <... futex resumed>) = 1 [pid 436] <... futex resumed>) = 0 [pid 296] <... ioctl resumed>) = 0 [pid 436] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] close(3 [pid 439] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 444] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 436] <... futex resumed>) = 0 [pid 296] <... close resumed>) = 0 ./strace-static-x86_64: Process 445 attached [pid 444] <... prctl resumed>) = 0 [pid 439] <... openat resumed>) = 5 [pid 436] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 439] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 436] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 445] set_robust_list(0x5555573645e0, 24 [pid 444] setpgid(0, 0 [pid 439] <... futex resumed>) = 0 [pid 436] exit_group(0 [pid 445] <... set_robust_list resumed>) = 0 [pid 444] <... setpgid resumed>) = 0 [pid 436] <... exit_group resumed>) = ? [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 446 [pid 439] +++ exited with 0 +++ [pid 436] +++ exited with 0 +++ [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=436, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 291] restart_syscall(<... resuming interrupted clone ...> [pid 444] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 445] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 444] write(3, "1000", 4 [pid 445] <... prctl resumed>) = 0 [pid 291] <... restart_syscall resumed>) = 0 [pid 445] setpgid(0, 0 [pid 444] <... write resumed>) = 4 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 445] <... setpgid resumed>) = 0 [pid 444] close(3 [pid 291] <... openat resumed>) = 3 [pid 291] ioctl(3, LOOP_CLR_FD) = 0 [pid 291] close(3) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 445] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 444] <... close resumed>) = 0 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 447 [pid 445] <... openat resumed>) = 3 [pid 444] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 445] write(3, "1000", 4 [pid 444] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 445] <... write resumed>) = 4 [pid 444] <... mmap resumed>) = 0x7f562f33a000 [pid 445] close(3 [pid 444] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 446 attached [pid 445] <... close resumed>) = 0 [pid 444] <... mprotect resumed>) = 0 [pid 445] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 446] set_robust_list(0x5555573645e0, 24) = 0 [pid 446] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 445] <... futex resumed>) = 0 [pid 446] <... prctl resumed>) = 0 [pid 445] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 444] <... clone resumed>, parent_tid=[448], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 448 [pid 446] setpgid(0, 0) = 0 [pid 446] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 444] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 445] <... mmap resumed>) = 0x7f562f33a000 [pid 445] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 444] <... futex resumed>) = 0 [pid 444] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 445] <... mprotect resumed>) = 0 [pid 446] <... openat resumed>) = 3 [pid 445] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 446] write(3, "1000", 4 [pid 445] <... clone resumed>, parent_tid=[449], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 449 [pid 446] <... write resumed>) = 4 [pid 446] close(3 [pid 445] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... close resumed>) = 0 ./strace-static-x86_64: Process 447 attached [pid 446] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 445] <... futex resumed>) = 0 [pid 446] <... futex resumed>) = 0 [pid 446] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 447] set_robust_list(0x5555573645e0, 24 [pid 446] <... mmap resumed>) = 0x7f562f33a000 [pid 445] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 446] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 448 attached [pid 447] <... set_robust_list resumed>) = 0 [pid 446] <... mprotect resumed>) = 0 [pid 448] set_robust_list(0x7f562f35a9e0, 24 [pid 447] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 446] clone(child_stack=0x7f562f35a3f0, 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 443 attached [pid 448] <... set_robust_list resumed>) = 0 [pid 447] <... prctl resumed>) = 0 [pid 447] setpgid(0, 0 [pid 448] memfd_create("syzkaller", 0 [pid 446] <... clone resumed>, parent_tid=[450], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 450 [pid 443] set_robust_list(0x5555573645e0, 24 [pid 446] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 443] <... set_robust_list resumed>) = 0 [pid 448] <... memfd_create resumed>) = 3 [pid 447] <... setpgid resumed>) = 0 [pid 446] <... futex resumed>) = 0 [pid 443] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 446] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 443] <... prctl resumed>) = 0 [pid 443] setpgid(0, 0) = 0 [pid 447] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 443] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 448] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 447] <... openat resumed>) = 3 [pid 443] <... openat resumed>) = 3 [pid 443] write(3, "1000", 4) = 4 [pid 447] write(3, "1000", 4) = 4 [pid 443] close(3) = 0 [pid 443] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 449 attached ) = 0 [pid 449] set_robust_list(0x7f562f35a9e0, 24 [pid 443] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 449] <... set_robust_list resumed>) = 0 [pid 443] <... mmap resumed>) = 0x7f562f33a000 [pid 449] memfd_create("syzkaller", 0 [pid 443] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 449] <... memfd_create resumed>) = 3 [pid 447] close(3 [pid 443] <... mprotect resumed>) = 0 [pid 449] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 443] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 447] <... close resumed>) = 0 [pid 449] <... mmap resumed>) = 0x7f5626f3a000 [pid 447] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 451 attached ./strace-static-x86_64: Process 450 attached [pid 449] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 448] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 447] <... futex resumed>) = 0 [pid 443] <... clone resumed>, parent_tid=[451], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 451 [pid 450] set_robust_list(0x7f562f35a9e0, 24 [pid 443] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 447] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 450] <... set_robust_list resumed>) = 0 [pid 443] <... futex resumed>) = 0 [pid 447] <... mmap resumed>) = 0x7f562f33a000 [pid 450] memfd_create("syzkaller", 0 [pid 447] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 443] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 447] <... mprotect resumed>) = 0 [pid 450] <... memfd_create resumed>) = 3 [pid 450] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 447] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 450] <... mmap resumed>) = 0x7f5626f3a000 [pid 451] set_robust_list(0x7f562f35a9e0, 24 [pid 448] <... write resumed>) = 1048576 [pid 447] <... clone resumed>, parent_tid=[452], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 452 [pid 441] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) ./strace-static-x86_64: Process 452 attached [pid 451] <... set_robust_list resumed>) = 0 [pid 450] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 449] <... write resumed>) = 1048576 [pid 448] munmap(0x7f5626f3a000, 1048576 [pid 447] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 442] <... mmap resumed>) = 0x20000000 [pid 441] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] set_robust_list(0x7f562f35a9e0, 24 [pid 451] memfd_create("syzkaller", 0 [pid 449] munmap(0x7f5626f3a000, 1048576 [pid 448] <... munmap resumed>) = 0 [pid 447] <... futex resumed>) = 0 [pid 442] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] <... futex resumed>) = 0 [pid 452] <... set_robust_list resumed>) = 0 [pid 451] <... memfd_create resumed>) = 3 [pid 449] <... munmap resumed>) = 0 [pid 448] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 447] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 442] <... futex resumed>) = 0 [pid 441] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 452] memfd_create("syzkaller", 0 [pid 451] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 450] <... write resumed>) = 1048576 [pid 449] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 448] <... openat resumed>) = 4 [pid 442] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 452] <... memfd_create resumed>) = 3 [pid 451] <... mmap resumed>) = 0x7f5626f3a000 [pid 449] <... openat resumed>) = 4 [pid 448] ioctl(4, LOOP_SET_FD, 3 [pid 441] <... mmap resumed>) = 0x7f5627019000 [pid 452] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 450] munmap(0x7f5626f3a000, 1048576 [pid 441] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 450] <... munmap resumed>) = 0 [pid 441] <... mprotect resumed>) = 0 [pid 450] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 441] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 450] <... openat resumed>) = 4 [pid 450] ioctl(4, LOOP_SET_FD, 3 [pid 441] <... clone resumed>, parent_tid=[453], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 453 [pid 450] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 441] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 450] ioctl(4, LOOP_CLR_FD [pid 441] <... futex resumed>) = 0 [pid 450] <... ioctl resumed>) = 0 [pid 441] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 453 attached [pid 453] set_robust_list(0x7f56270399e0, 24) = 0 [pid 453] madvise(0x20000000, 6291467, MADV_REMOVE [pid 449] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 449] ioctl(4, LOOP_CLR_FD) = 0 [pid 452] <... mmap resumed>) = 0x7f5626f3a000 [pid 448] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 450] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 450] close(4) = 0 [pid 448] ioctl(4, LOOP_CLR_FD [pid 450] close(3 [pid 449] ioctl(4, LOOP_SET_FD, 3 [pid 448] <... ioctl resumed>) = 0 [pid 452] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 451] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 450] <... close resumed>) = 0 [pid 449] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 449] close(4) = 0 [pid 449] close(3 [pid 448] ioctl(4, LOOP_SET_FD, 3 [pid 452] <... write resumed>) = 1048576 [pid 449] <... close resumed>) = 0 [pid 448] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 452] munmap(0x7f5626f3a000, 1048576 [pid 451] <... write resumed>) = 1048576 [pid 450] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 449] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] close(4 [pid 452] <... munmap resumed>) = 0 [pid 451] munmap(0x7f5626f3a000, 1048576 [pid 450] <... futex resumed>) = 1 [pid 449] <... futex resumed>) = 1 [pid 448] <... close resumed>) = 0 [pid 446] <... futex resumed>) = 0 [pid 445] <... futex resumed>) = 0 [pid 452] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 451] <... munmap resumed>) = 0 [pid 450] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 449] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 448] close(3 [pid 446] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 445] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... openat resumed>) = 4 [pid 451] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 450] <... open resumed>) = 3 [pid 449] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 446] <... futex resumed>) = 0 [pid 450] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 449] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 446] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 450] <... futex resumed>) = 0 [pid 449] <... open resumed>) = 3 [pid 446] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 450] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 449] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 450] <... open resumed>) = 4 [pid 449] <... futex resumed>) = 0 [pid 446] <... futex resumed>) = 0 [pid 450] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 449] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 448] <... close resumed>) = 0 [pid 446] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 0 [pid 452] ioctl(4, LOOP_SET_FD, 3 [pid 451] <... openat resumed>) = 4 [pid 450] <... futex resumed>) = 0 [pid 448] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 445] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 452] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 451] ioctl(4, LOOP_SET_FD, 3 [pid 450] ftruncate(4, 33587195 [pid 448] <... futex resumed>) = 1 [pid 446] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 445] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 444] <... futex resumed>) = 0 [pid 453] <... madvise resumed>) = 0 [pid 452] ioctl(4, LOOP_CLR_FD [pid 451] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 450] <... ftruncate resumed>) = 0 [pid 448] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 446] <... futex resumed>) = 0 [pid 445] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 453] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... ioctl resumed>) = 0 [pid 451] ioctl(4, LOOP_CLR_FD [pid 450] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 449] <... futex resumed>) = 0 [pid 448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 446] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 1 [pid 444] <... futex resumed>) = 0 [pid 453] <... futex resumed>) = 1 [pid 451] <... ioctl resumed>) = 0 [pid 450] <... futex resumed>) = 0 [pid 449] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 448] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 446] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 445] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 444] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 441] <... futex resumed>) = 0 [pid 453] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 450] sendfile(3, 4, NULL, 4 [pid 449] <... open resumed>) = 4 [pid 448] <... open resumed>) = 3 [pid 446] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 441] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 442] <... futex resumed>) = 0 [pid 441] <... futex resumed>) = 1 [pid 449] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = 1 [pid 446] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 0 [pid 444] <... futex resumed>) = 0 [pid 442] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 441] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 449] <... futex resumed>) = 1 [pid 450] <... sendfile resumed>) = 4 [pid 450] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 449] ftruncate(4, 33587195 [pid 448] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 445] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 442] <... openat resumed>) = 5 [pid 452] ioctl(4, LOOP_SET_FD, 3 [pid 448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 445] <... futex resumed>) = 0 [pid 444] <... futex resumed>) = 0 [pid 442] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 450] <... futex resumed>) = 1 [pid 449] <... ftruncate resumed>) = 0 [pid 448] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 446] <... futex resumed>) = 0 [pid 445] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 444] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 452] close(4 [pid 451] ioctl(4, LOOP_SET_FD, 3 [pid 450] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 449] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... open resumed>) = 4 [pid 446] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 445] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 442] <... futex resumed>) = 1 [pid 441] <... futex resumed>) = 0 [pid 452] <... close resumed>) = 0 [pid 451] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 450] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 449] <... futex resumed>) = 0 [pid 448] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 446] <... futex resumed>) = 0 [pid 445] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 442] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 441] exit_group(0 [pid 453] <... futex resumed>) = ? [pid 452] close(3 [pid 451] close(4 [pid 450] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 449] sendfile(3, 4, NULL, 4 [pid 448] <... futex resumed>) = 1 [pid 446] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 0 [pid 444] <... futex resumed>) = 0 [pid 442] <... futex resumed>) = ? [pid 441] <... exit_group resumed>) = ? [pid 453] +++ exited with 0 +++ [pid 452] <... close resumed>) = 0 [pid 451] <... close resumed>) = 0 [pid 449] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 448] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 445] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 444] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 442] +++ exited with 0 +++ [pid 441] +++ exited with 0 +++ [pid 452] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 451] close(3 [pid 449] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 444] <... futex resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=441, si_uid=0, si_status=0, si_utime=0, si_stime=5} --- [pid 452] <... futex resumed>) = 1 [pid 451] <... close resumed>) = 0 [pid 449] <... futex resumed>) = 1 [pid 448] ftruncate(4, 33587195 [pid 447] <... futex resumed>) = 0 [pid 445] <... futex resumed>) = 0 [pid 444] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 452] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 451] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 449] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 448] <... ftruncate resumed>) = 0 [pid 447] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 445] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 451] <... futex resumed>) = 1 [pid 449] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 448] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 447] <... futex resumed>) = 0 [pid 445] <... futex resumed>) = 0 [pid 443] <... futex resumed>) = 0 [pid 452] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 451] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 449] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 448] <... futex resumed>) = 1 [pid 447] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 444] <... futex resumed>) = 0 [pid 443] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... open resumed>) = 3 [pid 451] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 448] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 444] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 451] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 444] <... futex resumed>) = 0 [pid 452] <... futex resumed>) = 1 [pid 451] <... open resumed>) = 3 [pid 448] sendfile(3, 4, NULL, 4 [pid 447] <... futex resumed>) = 0 [pid 444] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 452] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 451] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 447] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 451] <... futex resumed>) = 0 [pid 448] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 447] <... futex resumed>) = 0 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 452] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 451] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 448] <... futex resumed>) = 1 [pid 447] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 444] <... futex resumed>) = 0 [pid 294] <... openat resumed>) = 3 [pid 452] <... open resumed>) = 4 [pid 448] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 444] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] ioctl(3, LOOP_CLR_FD [pid 452] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 444] <... futex resumed>) = 0 [pid 294] <... ioctl resumed>) = 0 [pid 452] <... futex resumed>) = 1 [pid 448] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 447] <... futex resumed>) = 0 [pid 444] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] close(3 [pid 452] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 451] <... futex resumed>) = 0 [pid 449] <... mmap resumed>) = 0x20000000 [pid 447] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 443] <... futex resumed>) = 1 [pid 294] <... close resumed>) = 0 [pid 452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 451] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 450] <... mmap resumed>) = 0x20000000 [pid 449] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 447] <... futex resumed>) = 0 [pid 443] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 452] ftruncate(4, 33587195 [pid 450] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 449] <... futex resumed>) = 1 [pid 447] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 445] <... futex resumed>) = 0 [pid 443] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 450] <... futex resumed>) = 1 [pid 449] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 446] <... futex resumed>) = 0 [pid 445] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 443] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 451] <... futex resumed>) = 0 [pid 450] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 449] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 446] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 445] <... futex resumed>) = 0 [pid 443] <... futex resumed>) = 1 [pid 452] <... ftruncate resumed>) = 0 [pid 451] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 450] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 449] madvise(0x20000000, 6291467, MADV_REMOVE [pid 446] <... futex resumed>) = 0 [pid 445] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 443] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 455 ./strace-static-x86_64: Process 455 attached [pid 452] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 451] <... open resumed>) = 4 [pid 448] <... mmap resumed>) = 0x20000000 [pid 446] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 455] set_robust_list(0x5555573645e0, 24 [pid 452] <... futex resumed>) = 1 [pid 451] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 448] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 447] <... futex resumed>) = 0 [pid 455] <... set_robust_list resumed>) = 0 [pid 452] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 451] <... futex resumed>) = 1 [pid 450] madvise(0x20000000, 6291467, MADV_REMOVE [pid 448] <... futex resumed>) = 1 [pid 447] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 443] <... futex resumed>) = 0 [pid 455] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 451] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 448] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 447] <... futex resumed>) = 0 [pid 444] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 443] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 455] <... prctl resumed>) = 0 [pid 452] sendfile(3, 4, NULL, 4 [pid 451] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 447] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 444] <... futex resumed>) = 0 [pid 443] <... futex resumed>) = 0 [pid 455] setpgid(0, 0 [pid 451] ftruncate(4, 33587195 [pid 448] madvise(0x20000000, 6291467, MADV_REMOVE [pid 444] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 443] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 455] <... setpgid resumed>) = 0 [pid 455] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 455] write(3, "1000", 4) = 4 [pid 455] close(3) = 0 [pid 455] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 455] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 455] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 455] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[456], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 456 [pid 455] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 455] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 456 attached [pid 456] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 456] memfd_create("syzkaller", 0) = 3 [pid 456] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 456] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 452] <... sendfile resumed>) = 4 [pid 451] <... ftruncate resumed>) = 0 [pid 449] <... madvise resumed>) = 0 [pid 452] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 451] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 449] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 1 [pid 451] <... futex resumed>) = 1 [pid 450] <... madvise resumed>) = 0 [pid 448] <... madvise resumed>) = 0 [pid 447] <... futex resumed>) = 0 [pid 443] <... futex resumed>) = 0 [pid 452] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 451] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 450] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 449] <... futex resumed>) = 1 [pid 448] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 447] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 445] <... futex resumed>) = 0 [pid 443] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 451] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 450] <... futex resumed>) = 1 [pid 449] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 448] <... futex resumed>) = 1 [pid 447] <... futex resumed>) = 0 [pid 446] <... futex resumed>) = 0 [pid 445] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 444] <... futex resumed>) = 0 [pid 443] <... futex resumed>) = 0 [pid 452] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 451] sendfile(3, 4, NULL, 4 [pid 450] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 449] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 448] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 447] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 446] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 445] <... futex resumed>) = 0 [pid 444] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 443] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 456] <... write resumed>) = 1048576 [pid 451] <... sendfile resumed>) = 4 [pid 450] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 449] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 446] <... futex resumed>) = 0 [pid 445] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 450] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 449] <... openat resumed>) = 5 [pid 446] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 451] <... futex resumed>) = 1 [pid 450] <... openat resumed>) = 5 [pid 449] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 443] <... futex resumed>) = 0 [pid 451] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 450] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 449] <... futex resumed>) = 1 [pid 445] <... futex resumed>) = 0 [pid 443] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 451] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 450] <... futex resumed>) = 1 [pid 449] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 446] <... futex resumed>) = 0 [pid 445] exit_group(0 [pid 443] <... futex resumed>) = 0 [pid 451] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 450] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 449] <... futex resumed>) = ? [pid 446] exit_group(0 [pid 445] <... exit_group resumed>) = ? [pid 443] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 456] munmap(0x7f5626f3a000, 1048576 [pid 450] <... futex resumed>) = ? [pid 449] +++ exited with 0 +++ [pid 448] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 446] <... exit_group resumed>) = ? [pid 444] <... futex resumed>) = 0 [pid 448] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 444] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 448] <... openat resumed>) = 5 [pid 448] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 445] +++ exited with 0 +++ [pid 444] <... futex resumed>) = 0 [pid 448] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 444] exit_group(0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=445, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 448] <... futex resumed>) = ? [pid 444] <... exit_group resumed>) = ? [pid 450] +++ exited with 0 +++ [pid 448] +++ exited with 0 +++ [pid 446] +++ exited with 0 +++ [pid 444] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=446, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=444, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 456] <... munmap resumed>) = 0 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 456] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 293] <... openat resumed>) = 3 [pid 456] <... openat resumed>) = 4 [pid 296] <... openat resumed>) = 3 [pid 293] ioctl(3, LOOP_CLR_FD [pid 456] ioctl(4, LOOP_SET_FD, 3 [pid 293] <... ioctl resumed>) = 0 [pid 456] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 296] ioctl(3, LOOP_CLR_FD [pid 293] close(3 [pid 456] ioctl(4, LOOP_CLR_FD [pid 451] <... mmap resumed>) = 0x20000000 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 293] <... close resumed>) = 0 [pid 456] <... ioctl resumed>) = 0 [pid 451] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... openat resumed>) = 3 [pid 451] <... futex resumed>) = 1 [pid 443] <... futex resumed>) = 0 ./strace-static-x86_64: Process 457 attached [pid 452] <... mmap resumed>) = 0x20000000 [pid 451] madvise(0x20000000, 6291467, MADV_REMOVE [pid 443] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... ioctl resumed>) = 0 [pid 292] ioctl(3, LOOP_CLR_FD [pid 443] <... futex resumed>) = 0 [pid 296] close(3 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 457 [pid 292] <... ioctl resumed>) = 0 [pid 456] ioctl(4, LOOP_SET_FD, 3 [pid 443] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... close resumed>) = 0 [pid 292] close(3 [pid 456] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... close resumed>) = 0 [pid 456] close(4 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 456] <... close resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 458 [pid 456] close(3 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 459 [pid 456] <... close resumed>) = 0 [pid 456] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 455] <... futex resumed>) = 0 [pid 456] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 455] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 456] <... open resumed>) = 3 [pid 455] <... futex resumed>) = 0 [pid 456] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 455] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 456] <... futex resumed>) = 0 [pid 455] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 455] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 455] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 456] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 456] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 455] <... futex resumed>) = 0 [pid 456] ftruncate(4, 33587195 [pid 455] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 455] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 456] <... ftruncate resumed>) = 0 [pid 456] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 455] <... futex resumed>) = 0 [pid 456] sendfile(3, 4, NULL, 4 [pid 455] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 455] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 452] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 456] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 456] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 455] <... futex resumed>) = 0 ./strace-static-x86_64: Process 459 attached ./strace-static-x86_64: Process 458 attached [pid 456] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 455] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 459] set_robust_list(0x5555573645e0, 24 [pid 458] set_robust_list(0x5555573645e0, 24 [pid 456] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 455] <... futex resumed>) = 0 [pid 459] <... set_robust_list resumed>) = 0 [pid 458] <... set_robust_list resumed>) = 0 [pid 456] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 455] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 459] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 458] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 459] <... prctl resumed>) = 0 [pid 458] <... prctl resumed>) = 0 [pid 457] set_robust_list(0x5555573645e0, 24 [pid 452] <... futex resumed>) = 1 [pid 447] <... futex resumed>) = 0 [pid 459] setpgid(0, 0 [pid 458] setpgid(0, 0 [pid 452] madvise(0x20000000, 6291467, MADV_REMOVE [pid 447] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 459] <... setpgid resumed>) = 0 [pid 458] <... setpgid resumed>) = 0 [pid 447] <... futex resumed>) = 0 [pid 459] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 447] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 459] <... openat resumed>) = 3 [pid 458] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 456] <... mmap resumed>) = 0x20000000 [pid 458] <... openat resumed>) = 3 [pid 459] write(3, "1000", 4 [pid 457] <... set_robust_list resumed>) = 0 [pid 458] write(3, "1000", 4 [pid 459] <... write resumed>) = 4 [pid 459] close(3 [pid 458] <... write resumed>) = 4 [pid 457] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 456] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 459] <... close resumed>) = 0 [pid 458] close(3 [pid 459] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 458] <... close resumed>) = 0 [pid 457] <... prctl resumed>) = 0 [pid 456] <... futex resumed>) = 1 [pid 455] <... futex resumed>) = 0 [pid 459] <... futex resumed>) = 0 [pid 458] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 457] setpgid(0, 0 [pid 456] madvise(0x20000000, 6291467, MADV_REMOVE [pid 455] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 459] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 458] <... futex resumed>) = 0 [pid 457] <... setpgid resumed>) = 0 [pid 455] <... futex resumed>) = 0 [pid 459] <... mmap resumed>) = 0x7f562f33a000 [pid 458] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 457] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 455] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 459] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 458] <... mmap resumed>) = 0x7f562f33a000 [pid 457] <... openat resumed>) = 3 [pid 459] <... mprotect resumed>) = 0 [pid 458] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 457] write(3, "1000", 4 [pid 459] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 458] <... mprotect resumed>) = 0 [pid 457] <... write resumed>) = 4 [pid 459] <... clone resumed>, parent_tid=[460], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 460 [pid 458] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 457] close(3 [pid 459] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 457] <... close resumed>) = 0 [pid 459] <... futex resumed>) = 0 [pid 458] <... clone resumed>, parent_tid=[461], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 461 [pid 457] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 459] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 458] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 457] <... futex resumed>) = 0 [pid 458] <... futex resumed>) = 0 [pid 457] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 458] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 457] <... mmap resumed>) = 0x7f562f33a000 [pid 457] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 457] clone(child_stack=0x7f562f35a3f0, 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 460 attached , parent_tid=[462], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 462 [pid 457] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 457] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 460] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 460] memfd_create("syzkaller", 0) = 3 [pid 460] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 461 attached [pid 461] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 461] memfd_create("syzkaller", 0 [pid 452] <... madvise resumed>) = 0 ./strace-static-x86_64: Process 462 attached [pid 456] <... madvise resumed>) = 0 [pid 452] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 451] <... madvise resumed>) = 0 [pid 462] set_robust_list(0x7f562f35a9e0, 24 [pid 456] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = 1 [pid 451] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 447] <... futex resumed>) = 0 [pid 462] <... set_robust_list resumed>) = 0 [pid 456] <... futex resumed>) = 1 [pid 455] <... futex resumed>) = 0 [pid 452] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 451] <... futex resumed>) = 1 [pid 447] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 443] <... futex resumed>) = 0 [pid 462] memfd_create("syzkaller", 0 [pid 456] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 455] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 451] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 447] <... futex resumed>) = 0 [pid 443] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 456] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 455] <... futex resumed>) = 0 [pid 443] <... futex resumed>) = 0 [pid 443] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 456] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 455] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 452] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 451] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 447] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 462] <... memfd_create resumed>) = 3 [pid 456] <... openat resumed>) = 5 [pid 452] <... openat resumed>) = 5 [pid 451] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 462] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 456] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 452] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 451] <... openat resumed>) = 5 [pid 462] <... mmap resumed>) = 0x7f5626f3a000 [pid 456] <... futex resumed>) = 1 [pid 455] <... futex resumed>) = 0 [pid 452] <... futex resumed>) = 1 [pid 451] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 447] <... futex resumed>) = 0 [pid 456] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 455] exit_group(0 [pid 452] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 451] <... futex resumed>) = 1 [pid 447] exit_group(0 [pid 443] <... futex resumed>) = 0 [pid 456] <... futex resumed>) = ? [pid 455] <... exit_group resumed>) = ? [pid 452] <... futex resumed>) = ? [pid 451] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 447] <... exit_group resumed>) = ? [pid 443] exit_group(0 [pid 456] +++ exited with 0 +++ [pid 443] <... exit_group resumed>) = ? [pid 461] <... memfd_create resumed>) = 3 [pid 461] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 455] +++ exited with 0 +++ [pid 452] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=455, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 294] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 451] <... futex resumed>) = ? [pid 447] +++ exited with 0 +++ [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=447, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] <... openat resumed>) = 3 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 294] ioctl(3, LOOP_CLR_FD [pid 291] <... openat resumed>) = 3 [pid 294] <... ioctl resumed>) = 0 [pid 291] ioctl(3, LOOP_CLR_FD [pid 451] +++ exited with 0 +++ [pid 443] +++ exited with 0 +++ [pid 294] close(3 [pid 291] <... ioctl resumed>) = 0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=443, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 294] <... close resumed>) = 0 [pid 291] close(3 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] <... close resumed>) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 463 [pid 295] <... openat resumed>) = 3 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 464 [pid 295] ioctl(3, LOOP_CLR_FD) = 0 [pid 295] close(3) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 465 ./strace-static-x86_64: Process 464 attached [pid 464] set_robust_list(0x5555573645e0, 24./strace-static-x86_64: Process 463 attached ) = 0 [pid 463] set_robust_list(0x5555573645e0, 24 [pid 464] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 463] <... set_robust_list resumed>) = 0 [pid 464] setpgid(0, 0) = 0 [pid 463] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 461] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 464] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 463] <... prctl resumed>) = 0 [pid 461] <... write resumed>) = 1048576 [pid 460] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 464] <... openat resumed>) = 3 [pid 463] setpgid(0, 0 [pid 464] write(3, "1000", 4 [pid 463] <... setpgid resumed>) = 0 [pid 462] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 464] <... write resumed>) = 4 [pid 463] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 464] close(3 [pid 463] <... openat resumed>) = 3 [pid 464] <... close resumed>) = 0 [pid 463] write(3, "1000", 4 [pid 464] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 463] <... write resumed>) = 4 [pid 464] <... futex resumed>) = 0 [pid 463] close(3 [pid 464] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 463] <... close resumed>) = 0 [pid 464] <... mmap resumed>) = 0x7f562f33a000 [pid 463] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 464] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 463] <... futex resumed>) = 0 [pid 464] <... mprotect resumed>) = 0 [pid 463] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 464] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 463] <... mmap resumed>) = 0x7f562f33a000 [pid 460] <... write resumed>) = 1048576 ./strace-static-x86_64: Process 465 attached [pid 463] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 464] <... clone resumed>, parent_tid=[466], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 466 [pid 463] <... mprotect resumed>) = 0 [pid 464] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 463] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 464] <... futex resumed>) = 0 [pid 464] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 463] <... clone resumed>, parent_tid=[467], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 467 [pid 463] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 463] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 465] set_robust_list(0x5555573645e0, 24 [pid 461] munmap(0x7f5626f3a000, 1048576) = 0 [pid 461] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 461] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 461] ioctl(4, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 466 attached [pid 466] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 465] <... set_robust_list resumed>) = 0 [pid 460] munmap(0x7f5626f3a000, 1048576 [pid 465] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 461] ioctl(4, LOOP_SET_FD, 3 [pid 460] <... munmap resumed>) = 0 ./strace-static-x86_64: Process 467 attached [pid 465] setpgid(0, 0 [pid 461] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 467] set_robust_list(0x7f562f35a9e0, 24 [pid 465] <... setpgid resumed>) = 0 [pid 461] close(4 [pid 460] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 467] <... set_robust_list resumed>) = 0 [pid 465] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 462] <... write resumed>) = 1048576 [pid 461] <... close resumed>) = 0 [pid 460] <... openat resumed>) = 4 [pid 461] close(3 [pid 467] memfd_create("syzkaller", 0 [pid 466] memfd_create("syzkaller", 0 [pid 465] <... openat resumed>) = 3 [pid 462] munmap(0x7f5626f3a000, 1048576 [pid 461] <... close resumed>) = 0 [pid 460] ioctl(4, LOOP_SET_FD, 3 [pid 465] write(3, "1000", 4 [pid 460] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 467] <... memfd_create resumed>) = 3 [pid 466] <... memfd_create resumed>) = 3 [pid 465] <... write resumed>) = 4 [pid 462] <... munmap resumed>) = 0 [pid 460] ioctl(4, LOOP_CLR_FD [pid 467] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 466] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 465] close(3 [pid 462] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 461] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 460] <... ioctl resumed>) = 0 [pid 467] <... mmap resumed>) = 0x7f5626f3a000 [pid 466] <... mmap resumed>) = 0x7f5626f3a000 [pid 465] <... close resumed>) = 0 [pid 462] <... openat resumed>) = 4 [pid 461] <... futex resumed>) = 1 [pid 458] <... futex resumed>) = 0 [pid 465] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 461] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 458] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 465] <... futex resumed>) = 0 [pid 461] <... open resumed>) = 3 [pid 458] <... futex resumed>) = 0 [pid 465] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 461] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 458] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 465] <... mmap resumed>) = 0x7f562f33a000 [pid 462] ioctl(4, LOOP_SET_FD, 3 [pid 461] <... futex resumed>) = 0 [pid 458] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 465] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 461] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 458] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 465] <... mprotect resumed>) = 0 [pid 462] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 461] <... open resumed>) = 4 [pid 458] <... futex resumed>) = 0 [pid 465] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 462] ioctl(4, LOOP_CLR_FD [pid 461] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 460] ioctl(4, LOOP_SET_FD, 3 [pid 458] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 461] <... futex resumed>) = 0 [pid 458] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 465] <... clone resumed>, parent_tid=[468], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 468 [pid 462] <... ioctl resumed>) = 0 [pid 461] ftruncate(4, 33587195 [pid 460] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 458] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 465] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 461] <... ftruncate resumed>) = 0 [pid 460] close(4 [pid 458] <... futex resumed>) = 0 [pid 465] <... futex resumed>) = 0 [pid 461] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 460] <... close resumed>) = 0 [pid 458] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 461] <... futex resumed>) = 0 [pid 458] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 461] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 458] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 461] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 458] <... futex resumed>) = 0 [pid 461] sendfile(3, 4, NULL, 4 [pid 458] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 467] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 466] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 465] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 460] close(3 [pid 462] ioctl(4, LOOP_SET_FD, 3 [pid 461] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 461] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 458] <... futex resumed>) = 0 [pid 461] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 458] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 461] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 458] <... futex resumed>) = 0 [pid 461] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 458] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 467] <... write resumed>) = 1048576 [pid 462] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 460] <... close resumed>) = 0 [pid 462] close(4 [pid 460] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 462] <... close resumed>) = 0 [pid 460] <... futex resumed>) = 1 [pid 459] <... futex resumed>) = 0 ./strace-static-x86_64: Process 468 attached [pid 462] close(3 [pid 460] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 459] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 468] set_robust_list(0x7f562f35a9e0, 24 [pid 459] <... futex resumed>) = 0 [pid 468] <... set_robust_list resumed>) = 0 [pid 468] memfd_create("syzkaller", 0) = 3 [pid 468] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 467] munmap(0x7f5626f3a000, 1048576 [pid 466] <... write resumed>) = 1048576 [pid 462] <... close resumed>) = 0 [pid 460] <... open resumed>) = 3 [pid 459] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 467] <... munmap resumed>) = 0 [pid 466] munmap(0x7f5626f3a000, 1048576 [pid 462] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 460] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 459] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 467] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 466] <... munmap resumed>) = 0 [pid 462] <... futex resumed>) = 1 [pid 460] <... futex resumed>) = 0 [pid 459] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 457] <... futex resumed>) = 0 [pid 467] <... openat resumed>) = 4 [pid 466] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 462] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 460] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 459] <... futex resumed>) = 0 [pid 457] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 467] ioctl(4, LOOP_SET_FD, 3 [pid 466] <... openat resumed>) = 4 [pid 462] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 460] <... open resumed>) = 4 [pid 459] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 457] <... futex resumed>) = 0 [pid 467] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 466] ioctl(4, LOOP_SET_FD, 3 [pid 462] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 460] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 459] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 457] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 467] ioctl(4, LOOP_CLR_FD [pid 466] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 462] <... open resumed>) = 3 [pid 460] <... futex resumed>) = 0 [pid 459] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 467] <... ioctl resumed>) = 0 [pid 466] ioctl(4, LOOP_CLR_FD [pid 462] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 460] ftruncate(4, 33587195 [pid 459] <... futex resumed>) = 0 [pid 468] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 466] <... ioctl resumed>) = 0 [pid 462] <... futex resumed>) = 1 [pid 460] <... ftruncate resumed>) = 0 [pid 459] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 457] <... futex resumed>) = 0 [pid 462] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 460] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 459] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 457] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 462] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 460] <... futex resumed>) = 0 [pid 459] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 457] <... futex resumed>) = 0 [pid 467] ioctl(4, LOOP_SET_FD, 3 [pid 462] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 460] sendfile(3, 4, NULL, 4 [pid 459] <... futex resumed>) = 0 [pid 457] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 467] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 466] ioctl(4, LOOP_SET_FD, 3 [pid 462] <... open resumed>) = 4 [pid 460] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 459] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 467] close(4 [pid 466] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 462] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 460] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 459] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 467] <... close resumed>) = 0 [pid 466] close(4 [pid 462] <... futex resumed>) = 1 [pid 460] <... futex resumed>) = 0 [pid 459] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 457] <... futex resumed>) = 0 [pid 467] close(3 [pid 466] <... close resumed>) = 0 [pid 462] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 460] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 459] <... futex resumed>) = 0 [pid 457] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 468] <... write resumed>) = 1048576 [pid 467] <... close resumed>) = 0 [pid 459] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 457] <... futex resumed>) = 0 [pid 468] munmap(0x7f5626f3a000, 1048576) = 0 [pid 468] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 467] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 466] close(3 [pid 462] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 457] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 468] ioctl(4, LOOP_SET_FD, 3 [pid 467] <... futex resumed>) = 1 [pid 466] <... close resumed>) = 0 [pid 463] <... futex resumed>) = 0 [pid 462] ftruncate(4, 33587195 [pid 467] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 466] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 463] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 468] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 467] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 466] <... futex resumed>) = 1 [pid 464] <... futex resumed>) = 0 [pid 463] <... futex resumed>) = 0 [pid 468] ioctl(4, LOOP_CLR_FD [pid 467] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 466] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 464] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 463] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 468] <... ioctl resumed>) = 0 [pid 467] <... open resumed>) = 3 [pid 466] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 464] <... futex resumed>) = 0 [pid 462] <... ftruncate resumed>) = 0 [pid 464] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 462] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 467] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 466] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 462] <... futex resumed>) = 1 [pid 457] <... futex resumed>) = 0 [pid 467] <... futex resumed>) = 1 [pid 466] <... open resumed>) = 3 [pid 463] <... futex resumed>) = 0 [pid 462] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 457] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 467] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 466] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 463] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 462] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 457] <... futex resumed>) = 0 [pid 467] <... open resumed>) = 4 [pid 466] <... futex resumed>) = 1 [pid 464] <... futex resumed>) = 0 [pid 463] <... futex resumed>) = 0 [pid 462] sendfile(3, 4, NULL, 4 [pid 457] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 468] ioctl(4, LOOP_SET_FD, 3 [pid 467] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 466] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 464] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 463] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 462] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 468] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 467] <... futex resumed>) = 0 [pid 466] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 464] <... futex resumed>) = 0 [pid 463] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 462] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 468] close(4 [pid 467] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 466] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 464] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 463] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 462] <... futex resumed>) = 1 [pid 457] <... futex resumed>) = 0 [pid 468] <... close resumed>) = 0 [pid 467] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 466] <... open resumed>) = 4 [pid 463] <... futex resumed>) = 0 [pid 462] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 461] <... mmap resumed>) = 0x20000000 [pid 457] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 460] <... mmap resumed>) = 0x20000000 [pid 468] close(3 [pid 467] ftruncate(4, 33587195 [pid 466] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 463] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 462] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 457] <... futex resumed>) = 0 [pid 467] <... ftruncate resumed>) = 0 [pid 466] <... futex resumed>) = 1 [pid 464] <... futex resumed>) = 0 [pid 462] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 457] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 467] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 466] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 464] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 464] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 461] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 458] <... futex resumed>) = 0 [pid 461] madvise(0x20000000, 6291467, MADV_REMOVE [pid 458] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 467] <... futex resumed>) = 1 [pid 466] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 463] <... futex resumed>) = 0 [pid 462] <... mmap resumed>) = 0x20000000 [pid 458] <... futex resumed>) = 0 [pid 467] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 466] ftruncate(4, 33587195 [pid 463] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 458] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 467] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 463] <... futex resumed>) = 0 [pid 467] sendfile(3, 4, NULL, 4 [pid 463] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 462] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 468] <... close resumed>) = 0 [pid 462] <... futex resumed>) = 1 [pid 460] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 457] <... futex resumed>) = 0 [pid 457] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 457] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 462] madvise(0x20000000, 6291467, MADV_REMOVE [pid 468] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 459] <... futex resumed>) = 0 [pid 459] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 468] <... futex resumed>) = 1 [pid 465] <... futex resumed>) = 0 [pid 459] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 460] <... futex resumed>) = 1 [pid 468] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 465] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 460] madvise(0x20000000, 6291467, MADV_REMOVE [pid 468] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 465] <... futex resumed>) = 0 [pid 468] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 465] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 468] <... open resumed>) = 3 [pid 468] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 465] <... futex resumed>) = 0 [pid 468] <... futex resumed>) = 1 [pid 465] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 468] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 465] <... futex resumed>) = 0 [pid 465] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 468] <... open resumed>) = 4 [pid 468] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 465] <... futex resumed>) = 0 [pid 468] ftruncate(4, 33587195 [pid 465] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 465] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 466] <... ftruncate resumed>) = 0 [pid 467] <... sendfile resumed>) = 4 [pid 466] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 461] <... madvise resumed>) = 0 [pid 461] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 458] <... futex resumed>) = 0 [pid 458] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 458] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 467] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 466] <... futex resumed>) = 1 [pid 464] <... futex resumed>) = 0 [pid 464] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 467] <... futex resumed>) = 1 [pid 466] sendfile(3, 4, NULL, 4 [pid 464] <... futex resumed>) = 0 [pid 463] <... futex resumed>) = 0 [pid 467] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 464] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 463] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 467] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 463] <... futex resumed>) = 0 [pid 467] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 463] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 461] <... futex resumed>) = 1 [pid 460] <... madvise resumed>) = 0 [pid 461] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5 [pid 461] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 458] <... futex resumed>) = 0 [pid 458] exit_group(0) = ? [pid 461] <... futex resumed>) = ? [pid 461] +++ exited with 0 +++ [pid 458] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=458, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 468] <... ftruncate resumed>) = 0 [pid 460] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 468] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 465] <... futex resumed>) = 0 [pid 468] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 465] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 468] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 465] <... futex resumed>) = 0 [pid 468] sendfile(3, 4, NULL, 4 [pid 465] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 460] <... futex resumed>) = 1 [pid 459] <... futex resumed>) = 0 [pid 460] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 459] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... restart_syscall resumed>) = 0 [pid 460] <... openat resumed>) = 5 [pid 459] <... futex resumed>) = 0 [pid 466] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 460] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 459] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 466] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 460] <... futex resumed>) = 0 [pid 459] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 466] <... futex resumed>) = 1 [pid 464] <... futex resumed>) = 0 [pid 460] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 459] exit_group(0 [pid 296] <... openat resumed>) = 3 [pid 464] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] ioctl(3, LOOP_CLR_FD [pid 464] <... futex resumed>) = 0 [pid 296] <... ioctl resumed>) = 0 [pid 464] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] close(3 [pid 468] <... sendfile resumed>) = 4 [pid 466] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 462] <... madvise resumed>) = 0 [pid 460] <... futex resumed>) = ? [pid 459] <... exit_group resumed>) = ? [pid 296] <... close resumed>) = 0 [pid 468] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 468] <... futex resumed>) = 1 [pid 465] <... futex resumed>) = 0 [pid 468] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 465] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 469 [pid 468] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 465] <... futex resumed>) = 0 [pid 468] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 465] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 460] +++ exited with 0 +++ [pid 459] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=459, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 292] ioctl(3, LOOP_CLR_FD) = 0 [pid 462] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] close(3) = 0 ./strace-static-x86_64: Process 469 attached [pid 462] <... futex resumed>) = 1 [pid 457] <... futex resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 462] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 457] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 462] <... openat resumed>) = 5 [pid 457] <... futex resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 470 [pid 462] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 457] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 462] <... futex resumed>) = 0 [pid 457] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 462] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 457] exit_group(0 [pid 462] <... futex resumed>) = ? [pid 457] <... exit_group resumed>) = ? [pid 469] set_robust_list(0x5555573645e0, 24) = 0 [pid 469] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 469] setpgid(0, 0) = 0 [pid 469] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 469] write(3, "1000", 4) = 4 [pid 469] close(3) = 0 [pid 469] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 469] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 462] +++ exited with 0 +++ [pid 457] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=457, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- ./strace-static-x86_64: Process 470 attached [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 470] set_robust_list(0x5555573645e0, 24 [pid 293] <... openat resumed>) = 3 [pid 293] ioctl(3, LOOP_CLR_FD) = 0 [pid 293] close(3) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 471 [pid 469] <... mmap resumed>) = 0x7f562f33a000 [pid 469] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 469] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[472], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 472 [pid 469] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 469] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 471 attached [pid 471] set_robust_list(0x5555573645e0, 24) = 0 [pid 471] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 470] <... set_robust_list resumed>) = 0 [pid 470] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 470] setpgid(0, 0 [pid 471] <... prctl resumed>) = 0 [pid 471] setpgid(0, 0) = 0 [pid 471] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 470] <... setpgid resumed>) = 0 [pid 471] <... openat resumed>) = 3 [pid 471] write(3, "1000", 4) = 4 [pid 471] close(3) = 0 [pid 471] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 471] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 466] <... mmap resumed>) = 0x20000000 [pid 471] <... mmap resumed>) = 0x7f562f33a000 [pid 471] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 471] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 470] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 470] write(3, "1000", 4) = 4 [pid 470] close(3./strace-static-x86_64: Process 472 attached [pid 471] <... clone resumed>, parent_tid=[473], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 473 [pid 470] <... close resumed>) = 0 [pid 472] set_robust_list(0x7f562f35a9e0, 24 [pid 471] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 470] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 472] <... set_robust_list resumed>) = 0 [pid 471] <... futex resumed>) = 0 [pid 472] memfd_create("syzkaller", 0 [pid 471] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 470] <... futex resumed>) = 0 [pid 466] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 472] <... memfd_create resumed>) = 3 [pid 472] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 470] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 466] <... futex resumed>) = 1 [pid 464] <... futex resumed>) = 0 ./strace-static-x86_64: Process 473 attached [pid 472] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 470] <... mmap resumed>) = 0x7f562f33a000 [pid 467] <... mmap resumed>) = 0x20000000 [pid 466] madvise(0x20000000, 6291467, MADV_REMOVE [pid 464] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 470] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 464] <... futex resumed>) = 0 [pid 470] <... mprotect resumed>) = 0 [pid 464] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 470] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[474], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 474 [pid 470] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 470] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 473] set_robust_list(0x7f562f35a9e0, 24 [pid 467] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 463] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 463] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 474 attached [pid 473] <... set_robust_list resumed>) = 0 [pid 467] <... futex resumed>) = 0 [pid 463] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 468] <... mmap resumed>) = 0x20000000 [pid 474] set_robust_list(0x7f562f35a9e0, 24 [pid 473] memfd_create("syzkaller", 0 [pid 472] <... write resumed>) = 1048576 [pid 468] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 467] madvise(0x20000000, 6291467, MADV_REMOVE [pid 474] <... set_robust_list resumed>) = 0 [pid 473] <... memfd_create resumed>) = 3 [pid 468] <... futex resumed>) = 1 [pid 465] <... futex resumed>) = 0 [pid 474] memfd_create("syzkaller", 0 [pid 473] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 468] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 465] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 474] <... memfd_create resumed>) = 3 [pid 473] <... mmap resumed>) = 0x7f5626f3a000 [pid 468] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 465] <... futex resumed>) = 0 [pid 474] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 472] munmap(0x7f5626f3a000, 1048576 [pid 467] <... madvise resumed>) = 0 [pid 466] <... madvise resumed>) = 0 [pid 465] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 472] <... munmap resumed>) = 0 [pid 466] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 472] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 466] <... futex resumed>) = 1 [pid 464] <... futex resumed>) = 0 [pid 472] <... openat resumed>) = 4 [pid 466] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 464] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 472] ioctl(4, LOOP_SET_FD, 3 [pid 466] <... openat resumed>) = 5 [pid 464] <... futex resumed>) = 0 [pid 472] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 466] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 464] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 472] ioctl(4, LOOP_CLR_FD [pid 466] <... futex resumed>) = 0 [pid 464] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 472] <... ioctl resumed>) = 0 [pid 466] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 464] exit_group(0 [pid 466] <... futex resumed>) = ? [pid 464] <... exit_group resumed>) = ? [pid 474] <... mmap resumed>) = 0x7f5626f3a000 [pid 473] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 468] madvise(0x20000000, 6291467, MADV_REMOVE [pid 467] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 466] +++ exited with 0 +++ [pid 464] +++ exited with 0 +++ [pid 472] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=464, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 472] close(4 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 472] <... close resumed>) = 0 [pid 291] <... openat resumed>) = 3 [pid 472] close(3 [pid 291] ioctl(3, LOOP_CLR_FD [pid 472] <... close resumed>) = 0 [pid 291] <... ioctl resumed>) = 0 [pid 472] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] close(3 [pid 472] <... futex resumed>) = 1 [pid 469] <... futex resumed>) = 0 [pid 291] <... close resumed>) = 0 [pid 473] <... write resumed>) = 1048576 [pid 472] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 469] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 472] <... open resumed>) = 3 [pid 469] <... futex resumed>) = 0 [pid 472] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 469] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 475 [pid 472] <... futex resumed>) = 0 [pid 469] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 468] <... madvise resumed>) = 0 [pid 472] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 469] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 472] <... open resumed>) = 4 [pid 469] <... futex resumed>) = 0 [pid 472] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 469] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 472] <... futex resumed>) = 0 [pid 469] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 472] ftruncate(4, 33587195 [pid 469] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 472] <... ftruncate resumed>) = 0 [pid 469] <... futex resumed>) = 0 [pid 472] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 469] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 472] <... futex resumed>) = 0 [pid 469] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 472] sendfile(3, 4, NULL, 4 [pid 469] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 472] <... sendfile resumed>) = 4 [pid 469] <... futex resumed>) = 0 [pid 472] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 469] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 472] <... futex resumed>) = 0 [pid 469] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 472] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 469] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 468] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 469] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 468] <... futex resumed>) = 1 [pid 465] <... futex resumed>) = 0 [pid 468] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 465] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 473] munmap(0x7f5626f3a000, 1048576 [pid 465] <... futex resumed>) = 0 [pid 473] <... munmap resumed>) = 0 [pid 468] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 465] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 468] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 473] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 468] <... openat resumed>) = 5 [pid 468] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 465] <... futex resumed>) = 0 [pid 473] <... openat resumed>) = 4 [pid 468] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 465] exit_group(0 [pid 473] ioctl(4, LOOP_SET_FD, 3 [pid 465] <... exit_group resumed>) = ? [pid 473] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 468] <... futex resumed>) = ? [pid 473] ioctl(4, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 475 attached [pid 475] set_robust_list(0x5555573645e0, 24 [pid 468] +++ exited with 0 +++ [pid 465] +++ exited with 0 +++ [pid 475] <... set_robust_list resumed>) = 0 [pid 473] ioctl(4, LOOP_SET_FD, 3 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=465, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 475] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 473] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 475] <... prctl resumed>) = 0 [pid 473] close(4 [pid 295] <... restart_syscall resumed>) = 0 [pid 475] setpgid(0, 0 [pid 473] <... close resumed>) = 0 [pid 475] <... setpgid resumed>) = 0 [pid 473] close(3 [pid 475] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 474] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 473] <... close resumed>) = 0 [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 475] <... openat resumed>) = 3 [pid 467] <... futex resumed>) = 1 [pid 463] <... futex resumed>) = 0 [pid 295] <... openat resumed>) = 3 [pid 475] write(3, "1000", 4 [pid 463] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] ioctl(3, LOOP_CLR_FD [pid 475] <... write resumed>) = 4 [pid 473] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 463] <... futex resumed>) = 0 [pid 295] <... ioctl resumed>) = 0 [pid 475] close(3 [pid 473] <... futex resumed>) = 1 [pid 471] <... futex resumed>) = 0 [pid 467] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 463] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] close(3 [pid 475] <... close resumed>) = 0 [pid 473] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 471] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 467] <... openat resumed>) = 5 [pid 295] <... close resumed>) = 0 [pid 475] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 473] <... open resumed>) = 3 [pid 471] <... futex resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 475] <... futex resumed>) = 0 [pid 473] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 471] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 467] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 475] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 474] <... write resumed>) = 1048576 [pid 473] <... futex resumed>) = 0 [pid 471] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 476 [pid 475] <... mmap resumed>) = 0x7f562f33a000 [pid 473] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 471] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 467] <... futex resumed>) = 1 [pid 463] <... futex resumed>) = 0 [pid 475] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 473] <... open resumed>) = 4 [pid 471] <... futex resumed>) = 0 [pid 467] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 463] exit_group(0 [pid 475] <... mprotect resumed>) = 0 [pid 473] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 471] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 467] <... futex resumed>) = ? [pid 463] <... exit_group resumed>) = ? [pid 475] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 473] <... futex resumed>) = 0 [pid 471] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 473] ftruncate(4, 33587195 [pid 471] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 475] <... clone resumed>, parent_tid=[477], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 477 [pid 471] <... futex resumed>) = 0 [pid 475] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 471] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 475] <... futex resumed>) = 0 [pid 475] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 473] <... ftruncate resumed>) = 0 [pid 473] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 471] <... futex resumed>) = 0 [pid 473] sendfile(3, 4, NULL, 4 [pid 471] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 467] +++ exited with 0 +++ [pid 463] +++ exited with 0 +++ [pid 471] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=463, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 473] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 473] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 471] <... futex resumed>) = 0 [pid 473] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 471] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 473] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 471] <... futex resumed>) = 0 [pid 473] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 471] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... restart_syscall resumed>) = 0 [pid 474] munmap(0x7f5626f3a000, 1048576 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 474] <... munmap resumed>) = 0 [pid 294] <... openat resumed>) = 3 [pid 294] ioctl(3, LOOP_CLR_FD) = 0 [pid 294] close(3) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 478 ./strace-static-x86_64: Process 478 attached ./strace-static-x86_64: Process 477 attached ./strace-static-x86_64: Process 476 attached [pid 474] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 478] set_robust_list(0x5555573645e0, 24 [pid 477] set_robust_list(0x7f562f35a9e0, 24 [pid 476] set_robust_list(0x5555573645e0, 24 [pid 474] <... openat resumed>) = 4 [pid 478] <... set_robust_list resumed>) = 0 [pid 477] <... set_robust_list resumed>) = 0 [pid 476] <... set_robust_list resumed>) = 0 [pid 474] ioctl(4, LOOP_SET_FD, 3 [pid 478] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 477] memfd_create("syzkaller", 0 [pid 476] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 474] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 478] <... prctl resumed>) = 0 [pid 477] <... memfd_create resumed>) = 3 [pid 476] <... prctl resumed>) = 0 [pid 474] ioctl(4, LOOP_CLR_FD [pid 478] setpgid(0, 0 [pid 477] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 476] setpgid(0, 0 [pid 474] <... ioctl resumed>) = 0 [pid 478] <... setpgid resumed>) = 0 [pid 477] <... mmap resumed>) = 0x7f5626f3a000 [pid 476] <... setpgid resumed>) = 0 [pid 478] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 477] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 476] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 478] <... openat resumed>) = 3 [pid 476] <... openat resumed>) = 3 [pid 478] write(3, "1000", 4 [pid 476] write(3, "1000", 4 [pid 478] <... write resumed>) = 4 [pid 476] <... write resumed>) = 4 [pid 474] ioctl(4, LOOP_SET_FD, 3 [pid 478] close(3 [pid 476] close(3 [pid 474] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 478] <... close resumed>) = 0 [pid 476] <... close resumed>) = 0 [pid 474] close(4 [pid 478] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 476] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 474] <... close resumed>) = 0 [pid 473] <... mmap resumed>) = 0x20000000 [pid 472] <... mmap resumed>) = 0x20000000 [pid 469] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 478] <... futex resumed>) = 0 [pid 476] <... futex resumed>) = 0 [pid 474] close(3 [pid 469] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 473] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 472] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 478] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 477] <... write resumed>) = 1048576 [pid 476] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 473] <... futex resumed>) = 1 [pid 472] <... futex resumed>) = 0 [pid 471] <... futex resumed>) = 0 [pid 469] <... futex resumed>) = 0 [pid 474] <... close resumed>) = 0 [pid 478] <... mmap resumed>) = 0x7f562f33a000 [pid 477] munmap(0x7f5626f3a000, 1048576 [pid 476] <... mmap resumed>) = 0x7f562f33a000 [pid 474] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 473] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 472] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 471] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 469] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 478] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 476] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 474] <... futex resumed>) = 1 [pid 473] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 471] <... futex resumed>) = 0 [pid 470] <... futex resumed>) = 0 [pid 478] <... mprotect resumed>) = 0 [pid 477] <... munmap resumed>) = 0 [pid 476] <... mprotect resumed>) = 0 [pid 474] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 473] madvise(0x20000000, 6291467, MADV_REMOVE [pid 471] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 470] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 469] <... mmap resumed>) = 0x7f5627019000 [pid 478] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 476] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 474] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 470] <... futex resumed>) = 0 [pid 469] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 474] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 470] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 478] <... clone resumed>, parent_tid=[479], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 479 [pid 476] <... clone resumed>, parent_tid=[480], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 480 [pid 474] <... open resumed>) = 3 [pid 469] <... mprotect resumed>) = 0 [pid 478] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 476] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 474] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 469] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 478] <... futex resumed>) = 0 [pid 476] <... futex resumed>) = 0 [pid 474] <... futex resumed>) = 1 [pid 470] <... futex resumed>) = 0 [pid 478] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 476] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 474] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 470] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 474] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 470] <... futex resumed>) = 0 [pid 469] <... clone resumed>, parent_tid=[481], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 481 [pid 474] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 470] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 474] <... open resumed>) = 4 [pid 469] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 474] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 469] <... futex resumed>) = 0 [pid 474] <... futex resumed>) = 1 [pid 470] <... futex resumed>) = 0 [pid 469] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 474] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 470] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 477] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 474] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 470] <... futex resumed>) = 0 [pid 477] <... openat resumed>) = 4 [pid 474] ftruncate(4, 33587195 [pid 470] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 477] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 477] ioctl(4, LOOP_CLR_FD./strace-static-x86_64: Process 480 attached [pid 480] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 480] memfd_create("syzkaller", 0) = 3 [pid 477] <... ioctl resumed>) = 0 [pid 480] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 481 attached [pid 481] set_robust_list(0x7f56270399e0, 24) = 0 [pid 481] madvise(0x20000000, 6291467, MADV_REMOVE [pid 480] <... mmap resumed>) = 0x7f5626f3a000 [pid 480] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 479 attached [pid 477] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 479] set_robust_list(0x7f562f35a9e0, 24 [pid 477] close(4 [pid 479] <... set_robust_list resumed>) = 0 [pid 479] memfd_create("syzkaller", 0 [pid 477] <... close resumed>) = 0 [pid 473] <... madvise resumed>) = 0 [pid 479] <... memfd_create resumed>) = 3 [pid 477] close(3 [pid 479] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 477] <... close resumed>) = 0 [pid 479] <... mmap resumed>) = 0x7f5626f3a000 [pid 477] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 480] <... write resumed>) = 1048576 [pid 477] <... futex resumed>) = 1 [pid 474] <... ftruncate resumed>) = 0 [pid 473] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 481] <... madvise resumed>) = 0 [pid 479] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 477] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 475] <... futex resumed>) = 0 [pid 481] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 480] munmap(0x7f5626f3a000, 1048576 [pid 475] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 474] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 473] <... futex resumed>) = 1 [pid 471] <... futex resumed>) = 0 [pid 481] <... futex resumed>) = 1 [pid 480] <... munmap resumed>) = 0 [pid 477] <... futex resumed>) = 0 [pid 475] <... futex resumed>) = 1 [pid 474] <... futex resumed>) = 1 [pid 473] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 471] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 470] <... futex resumed>) = 0 [pid 469] <... futex resumed>) = 0 [pid 481] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 480] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 477] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 475] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 474] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 473] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 471] <... futex resumed>) = 0 [pid 470] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 469] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 480] <... openat resumed>) = 4 [pid 479] <... write resumed>) = 1048576 [pid 477] <... open resumed>) = 3 [pid 474] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 472] <... futex resumed>) = 0 [pid 471] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 470] <... futex resumed>) = 0 [pid 469] <... futex resumed>) = 1 [pid 480] ioctl(4, LOOP_SET_FD, 3 [pid 479] munmap(0x7f5626f3a000, 1048576 [pid 477] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 474] sendfile(3, 4, NULL, 4 [pid 473] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 472] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 470] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 469] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 480] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 479] <... munmap resumed>) = 0 [pid 477] <... futex resumed>) = 1 [pid 475] <... futex resumed>) = 0 [pid 472] <... openat resumed>) = 5 [pid 479] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 477] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 475] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 480] ioctl(4, LOOP_CLR_FD [pid 473] <... openat resumed>) = 5 [pid 472] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 479] <... openat resumed>) = 4 [pid 477] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 475] <... futex resumed>) = 0 [pid 472] <... futex resumed>) = 1 [pid 469] <... futex resumed>) = 0 [pid 479] ioctl(4, LOOP_SET_FD, 3 [pid 477] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 475] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 474] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 472] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 469] exit_group(0 [pid 473] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 481] <... futex resumed>) = ? [pid 480] <... ioctl resumed>) = 0 [pid 479] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 477] <... open resumed>) = 4 [pid 474] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 473] <... futex resumed>) = 1 [pid 472] <... futex resumed>) = ? [pid 471] <... futex resumed>) = 0 [pid 469] <... exit_group resumed>) = ? [pid 481] +++ exited with 0 +++ [pid 479] ioctl(4, LOOP_CLR_FD [pid 477] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 474] <... futex resumed>) = 1 [pid 473] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 472] +++ exited with 0 +++ [pid 471] exit_group(0 [pid 470] <... futex resumed>) = 0 [pid 469] +++ exited with 0 +++ [pid 479] <... ioctl resumed>) = 0 [pid 477] <... futex resumed>) = 1 [pid 475] <... futex resumed>) = 0 [pid 474] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 473] <... futex resumed>) = ? [pid 471] <... exit_group resumed>) = ? [pid 470] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=469, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 477] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 475] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 474] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 470] <... futex resumed>) = 0 [pid 477] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 475] <... futex resumed>) = 0 [pid 474] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 470] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 477] ftruncate(4, 33587195 [pid 475] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 477] <... ftruncate resumed>) = 0 [pid 479] ioctl(4, LOOP_SET_FD, 3 [pid 477] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 479] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 477] <... futex resumed>) = 1 [pid 475] <... futex resumed>) = 0 [pid 479] close(4 [pid 477] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 475] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 479] <... close resumed>) = 0 [pid 477] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 475] <... futex resumed>) = 0 [pid 296] <... openat resumed>) = 3 [pid 479] close(3 [pid 477] sendfile(3, 4, NULL, 4 [pid 475] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] ioctl(3, LOOP_CLR_FD [pid 479] <... close resumed>) = 0 [pid 477] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 473] +++ exited with 0 +++ [pid 471] +++ exited with 0 +++ [pid 296] <... ioctl resumed>) = 0 [pid 479] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 477] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] close(3 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=471, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 479] <... futex resumed>) = 1 [pid 477] <... futex resumed>) = 1 [pid 475] <... futex resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 479] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 477] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 475] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 477] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 475] <... futex resumed>) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 477] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 475] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 482 [pid 293] <... openat resumed>) = 3 [pid 293] ioctl(3, LOOP_CLR_FD) = 0 [pid 293] close(3) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 483 [pid 478] <... futex resumed>) = 0 [pid 478] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 479] <... futex resumed>) = 0 [pid 478] <... futex resumed>) = 1 [pid 479] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 478] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 479] <... open resumed>) = 3 [pid 479] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 478] <... futex resumed>) = 0 [pid 480] ioctl(4, LOOP_SET_FD, 3 [pid 479] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 478] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 480] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 479] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 478] <... futex resumed>) = 0 [pid 480] close(4 [pid 479] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 478] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 480] <... close resumed>) = 0 [pid 479] <... open resumed>) = 4 [pid 479] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 480] close(3 [pid 479] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 478] <... futex resumed>) = 0 [pid 478] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 479] <... futex resumed>) = 0 [pid 478] <... futex resumed>) = 1 [pid 479] ftruncate(4, 33587195 [pid 478] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 482 attached [pid 482] set_robust_list(0x5555573645e0, 24) = 0 [pid 482] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 482] setpgid(0, 0) = 0 [pid 482] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 482] write(3, "1000", 4) = 4 [pid 482] close(3) = 0 [pid 482] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 482] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 482] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 480] <... close resumed>) = 0 [pid 482] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[484], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 484 [pid 482] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 482] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 484 attached [pid 484] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 484] memfd_create("syzkaller", 0) = 3 [pid 484] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 480] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 484] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 483 attached [pid 480] <... futex resumed>) = 1 [pid 476] <... futex resumed>) = 0 [pid 476] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 476] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 480] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 480] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 483] set_robust_list(0x5555573645e0, 24 [pid 476] <... futex resumed>) = 0 [pid 476] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 476] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 480] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 483] <... set_robust_list resumed>) = 0 [pid 480] <... open resumed>) = 4 [pid 483] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 480] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 476] <... futex resumed>) = 0 [pid 483] setpgid(0, 0 [pid 480] ftruncate(4, 33587195 [pid 476] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 476] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 483] <... setpgid resumed>) = 0 [pid 483] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 483] write(3, "1000", 4) = 4 [pid 483] close(3) = 0 [pid 483] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 479] <... ftruncate resumed>) = 0 [pid 480] <... ftruncate resumed>) = 0 [pid 483] <... futex resumed>) = 0 [pid 480] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 479] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 479] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 478] <... futex resumed>) = 0 [pid 483] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 480] <... futex resumed>) = 1 [pid 476] <... futex resumed>) = 0 [pid 476] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 478] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 480] sendfile(3, 4, NULL, 4 [pid 476] <... futex resumed>) = 0 [pid 483] <... mmap resumed>) = 0x7f562f33a000 [pid 478] <... futex resumed>) = 1 [pid 480] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 478] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 476] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 483] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 480] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 476] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 480] <... futex resumed>) = 0 [pid 476] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 483] <... mprotect resumed>) = 0 [pid 480] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 476] <... futex resumed>) = 0 [pid 479] <... futex resumed>) = 0 [pid 479] sendfile(3, 4, NULL, 4) = -1 EINVAL (Invalid argument) [pid 479] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 479] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 478] <... futex resumed>) = 0 [pid 476] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 478] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 479] <... futex resumed>) = 0 [pid 478] <... futex resumed>) = 1 [pid 483] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 478] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 479] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0./strace-static-x86_64: Process 485 attached [pid 484] <... write resumed>) = 1048576 [pid 480] <... mmap resumed>) = 0x20000000 [pid 477] <... mmap resumed>) = 0x20000000 [pid 474] <... mmap resumed>) = 0x20000000 [pid 470] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 477] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 483] <... clone resumed>, parent_tid=[485], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 485 [pid 480] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 470] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 479] <... mmap resumed>) = 0x20000000 [pid 485] set_robust_list(0x7f562f35a9e0, 24 [pid 484] munmap(0x7f5626f3a000, 1048576 [pid 474] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 485] <... set_robust_list resumed>) = 0 [pid 483] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 480] <... futex resumed>) = 1 [pid 479] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 477] <... futex resumed>) = 1 [pid 476] <... futex resumed>) = 0 [pid 475] <... futex resumed>) = 0 [pid 474] <... futex resumed>) = 0 [pid 470] <... futex resumed>) = 0 [pid 477] madvise(0x20000000, 6291467, MADV_REMOVE [pid 475] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 483] <... futex resumed>) = 0 [pid 480] madvise(0x20000000, 6291467, MADV_REMOVE [pid 479] <... futex resumed>) = 1 [pid 478] <... futex resumed>) = 0 [pid 476] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 474] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 470] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 485] memfd_create("syzkaller", 0 [pid 484] <... munmap resumed>) = 0 [pid 483] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 478] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 475] <... futex resumed>) = 0 [pid 475] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 479] madvise(0x20000000, 6291467, MADV_REMOVE [pid 476] <... futex resumed>) = 0 [pid 470] <... mmap resumed>) = 0x7f5627019000 [pid 478] <... futex resumed>) = 0 [pid 476] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 478] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 470] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 485] <... memfd_create resumed>) = 3 [pid 484] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 470] <... mprotect resumed>) = 0 [pid 485] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 484] <... openat resumed>) = 4 [pid 470] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 485] <... mmap resumed>) = 0x7f5626f3a000 [pid 470] <... clone resumed>, parent_tid=[486], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 486 [pid 484] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 486 attached [pid 470] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 485] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 470] <... futex resumed>) = 0 [pid 470] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 484] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 484] ioctl(4, LOOP_CLR_FD) = 0 [pid 484] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 484] close(4) = 0 [pid 479] <... madvise resumed>) = 0 [pid 479] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 478] <... futex resumed>) = 0 [pid 478] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 479] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 478] <... futex resumed>) = 0 [pid 478] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 479] <... openat resumed>) = 5 [pid 479] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 478] <... futex resumed>) = 0 [pid 478] exit_group(0) = ? [pid 484] close(3 [pid 479] +++ exited with 0 +++ [pid 478] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=478, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 294] ioctl(3, LOOP_CLR_FD) = 0 [pid 294] close(3) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 487 [pid 484] <... close resumed>) = 0 [pid 477] <... madvise resumed>) = 0 [pid 477] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 475] <... futex resumed>) = 0 [pid 475] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 475] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 477] <... futex resumed>) = 1 [pid 477] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5 [pid 477] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 475] <... futex resumed>) = 0 [pid 475] exit_group(0) = ? [pid 480] <... madvise resumed>) = 0 [pid 480] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 476] <... futex resumed>) = 0 [pid 476] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 476] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 480] <... futex resumed>) = 1 [pid 484] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 482] <... futex resumed>) = 0 [pid 484] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 482] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 484] <... open resumed>) = 3 [pid 482] <... futex resumed>) = 0 [pid 482] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 484] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 482] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 482] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 482] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 484] <... futex resumed>) = 1 [pid 482] <... futex resumed>) = 0 [pid 482] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 480] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5 [pid 480] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 476] <... futex resumed>) = 0 [pid 476] exit_group(0 [pid 480] <... futex resumed>) = ? [pid 476] <... exit_group resumed>) = ? [pid 484] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 480] +++ exited with 0 +++ [pid 476] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=476, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 477] <... futex resumed>) = ? [pid 484] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... restart_syscall resumed>) = 0 [pid 486] set_robust_list(0x7f56270399e0, 24 [pid 484] <... futex resumed>) = 1 [pid 482] <... futex resumed>) = 0 [pid 482] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 484] ftruncate(4, 33587195 [pid 486] <... set_robust_list resumed>) = 0 [pid 482] <... futex resumed>) = 0 [pid 295] <... openat resumed>) = 3 [pid 482] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] ioctl(3, LOOP_CLR_FD [pid 484] <... ftruncate resumed>) = 0 [pid 295] <... ioctl resumed>) = 0 [pid 295] close(3) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 484] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 482] <... futex resumed>) = 0 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 488 [pid 484] sendfile(3, 4, NULL, 4 [pid 482] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 482] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 484] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 484] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 486] madvise(0x20000000, 6291467, MADV_REMOVE [pid 484] <... futex resumed>) = 1 [pid 482] <... futex resumed>) = 0 [pid 484] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 482] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 484] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 482] <... futex resumed>) = 0 [pid 484] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 482] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 477] +++ exited with 0 +++ [pid 475] +++ exited with 0 +++ [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=475, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 291] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 488 attached [pid 488] set_robust_list(0x5555573645e0, 24) = 0 [pid 488] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 291] <... restart_syscall resumed>) = 0 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 291] ioctl(3, LOOP_CLR_FD) = 0 [pid 291] close(3) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 489 [pid 488] setpgid(0, 0) = 0 [pid 488] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 488] write(3, "1000", 4) = 4 [pid 488] close(3) = 0 [pid 488] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 488] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 488] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 488] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[490], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 490 [pid 488] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 488] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 487 attached [pid 487] set_robust_list(0x5555573645e0, 24) = 0 [pid 487] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 487] setpgid(0, 0) = 0 [pid 487] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 487] write(3, "1000", 4) = 4 [pid 487] close(3) = 0 [pid 487] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 487] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 487] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 489 attached [pid 487] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 489] set_robust_list(0x5555573645e0, 24) = 0 [pid 487] <... clone resumed>, parent_tid=[491], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 491 [pid 489] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 487] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 489] <... prctl resumed>) = 0 [pid 487] <... futex resumed>) = 0 [pid 489] setpgid(0, 0 [pid 487] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 489] <... setpgid resumed>) = 0 [pid 489] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 489] write(3, "1000", 4) = 4 [pid 489] close(3) = 0 [pid 489] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 489] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 489] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 489] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[492], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 492 [pid 489] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 490 attached ) = 0 [pid 490] set_robust_list(0x7f562f35a9e0, 24 [pid 489] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 490] <... set_robust_list resumed>) = 0 [pid 490] memfd_create("syzkaller", 0) = 3 [pid 490] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 491 attached [pid 486] <... madvise resumed>) = 0 [pid 485] <... write resumed>) = 1048576 [pid 491] set_robust_list(0x7f562f35a9e0, 24 [pid 486] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 485] munmap(0x7f5626f3a000, 1048576 [pid 486] <... futex resumed>) = 1 [pid 470] <... futex resumed>) = 0 [pid 485] <... munmap resumed>) = 0 [pid 491] <... set_robust_list resumed>) = 0 [pid 491] memfd_create("syzkaller", 0 [pid 486] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 485] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 470] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 491] <... memfd_create resumed>) = 3 [pid 485] <... openat resumed>) = 4 [pid 474] <... futex resumed>) = 0 [pid 470] <... futex resumed>) = 1 [pid 491] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 485] ioctl(4, LOOP_SET_FD, 3 [pid 474] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 470] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 491] <... mmap resumed>) = 0x7f5626f3a000 [pid 485] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 474] <... openat resumed>) = 5 [pid 485] ioctl(4, LOOP_CLR_FD [pid 474] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 492 attached [pid 492] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 492] memfd_create("syzkaller", 0) = 3 [pid 492] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 491] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 485] <... ioctl resumed>) = 0 [pid 474] <... futex resumed>) = 1 [pid 470] <... futex resumed>) = 0 [pid 474] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 470] exit_group(0 [pid 486] <... futex resumed>) = ? [pid 474] <... futex resumed>) = ? [pid 470] <... exit_group resumed>) = ? [pid 486] +++ exited with 0 +++ [pid 474] +++ exited with 0 +++ [pid 490] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 470] +++ exited with 0 +++ [pid 485] ioctl(4, LOOP_SET_FD, 3 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=470, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 485] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 485] close(4) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 292] ioctl(3, LOOP_CLR_FD) = 0 [pid 292] close(3) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 493 [pid 492] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 485] close(3 [pid 490] <... write resumed>) = 1048576 [pid 485] <... close resumed>) = 0 [pid 490] munmap(0x7f5626f3a000, 1048576) = 0 [pid 485] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 490] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 490] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 490] ioctl(4, LOOP_CLR_FD) = 0 [pid 485] <... futex resumed>) = 1 [pid 483] <... futex resumed>) = 0 [pid 483] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 485] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 483] <... futex resumed>) = 0 [pid 485] <... open resumed>) = 3 [pid 485] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 483] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 490] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 483] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 485] <... futex resumed>) = 0 [pid 490] close(4) = 0 [pid 485] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 483] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 490] close(3) = 0 [pid 485] <... open resumed>) = 4 [pid 483] <... futex resumed>) = 0 [pid 485] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 483] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 491] <... write resumed>) = 1048576 [pid 485] <... futex resumed>) = 0 [pid 483] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 485] ftruncate(4, 33587195 [pid 483] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 490] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 488] <... futex resumed>) = 0 [pid 491] munmap(0x7f5626f3a000, 1048576 [pid 488] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 483] <... futex resumed>) = 0 [pid 488] <... futex resumed>) = 0 [pid 488] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 490] <... futex resumed>) = 1 [pid 483] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 490] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 491] <... munmap resumed>) = 0 [pid 490] <... open resumed>) = 3 [pid 482] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 492] <... write resumed>) = 1048576 [pid 491] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 490] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 485] <... ftruncate resumed>) = 0 [pid 482] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 491] <... openat resumed>) = 4 [pid 490] <... futex resumed>) = 1 [pid 488] <... futex resumed>) = 0 [pid 485] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 482] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 492] munmap(0x7f5626f3a000, 1048576 [pid 490] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 488] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 482] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 492] <... munmap resumed>) = 0 [pid 491] ioctl(4, LOOP_SET_FD, 3 [pid 490] <... open resumed>) = 4 [pid 488] <... futex resumed>) = 0 [pid 485] <... futex resumed>) = 1 [pid 483] <... futex resumed>) = 0 [pid 482] <... futex resumed>) = 0 [pid 492] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 490] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 488] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 485] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 483] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 482] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 492] <... openat resumed>) = 4 [pid 491] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 490] <... futex resumed>) = 0 [pid 488] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 485] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 483] <... futex resumed>) = 0 [pid 482] <... mmap resumed>) = 0x7f5627019000 [pid 492] ioctl(4, LOOP_SET_FD, 3 [pid 490] ftruncate(4, 33587195 [pid 488] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 485] sendfile(3, 4, NULL, 4 [pid 483] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 482] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 491] ioctl(4, LOOP_CLR_FD [pid 492] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 491] <... ioctl resumed>) = 0 [pid 490] <... ftruncate resumed>) = 0 [pid 488] <... futex resumed>) = 0 [pid 482] <... mprotect resumed>) = 0 [pid 492] ioctl(4, LOOP_CLR_FD [pid 490] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 488] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 482] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 492] <... ioctl resumed>) = 0 [pid 490] <... futex resumed>) = 0 [pid 488] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 490] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 488] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 482] <... clone resumed>, parent_tid=[494], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 494 [pid 490] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 488] <... futex resumed>) = 0 [pid 482] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 490] sendfile(3, 4, NULL, 4 [pid 488] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 482] <... futex resumed>) = 0 [pid 490] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 485] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 482] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 490] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 485] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 490] <... futex resumed>) = 1 [pid 488] <... futex resumed>) = 0 [pid 485] <... futex resumed>) = 1 [pid 483] <... futex resumed>) = 0 [pid 490] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 488] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 485] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 483] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 490] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 488] <... futex resumed>) = 0 [pid 485] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 483] <... futex resumed>) = 0 [pid 492] ioctl(4, LOOP_SET_FD, 3 [pid 490] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 488] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 485] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 483] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 494 attached ./strace-static-x86_64: Process 493 attached [pid 492] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 492] close(4) = 0 [pid 492] close(3) = 0 [pid 491] ioctl(4, LOOP_SET_FD, 3 [pid 492] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 489] <... futex resumed>) = 0 [pid 492] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 489] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 492] <... open resumed>) = 3 [pid 489] <... futex resumed>) = 0 [pid 492] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 489] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 492] <... futex resumed>) = 0 [pid 489] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 492] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 489] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 492] <... open resumed>) = 4 [pid 489] <... futex resumed>) = 0 [pid 492] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 489] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 492] <... futex resumed>) = 0 [pid 489] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 492] ftruncate(4, 33587195 [pid 489] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 489] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 494] set_robust_list(0x7f56270399e0, 24) = 0 [pid 494] madvise(0x20000000, 6291467, MADV_REMOVE [pid 493] set_robust_list(0x5555573645e0, 24) = 0 [pid 492] <... ftruncate resumed>) = 0 [pid 491] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 492] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 489] <... futex resumed>) = 0 [pid 489] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 489] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 493] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 493] setpgid(0, 0) = 0 [pid 493] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 493] write(3, "1000", 4) = 4 [pid 493] close(3) = 0 [pid 493] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 493] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 493] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 493] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 492] sendfile(3, 4, NULL, 4 [pid 485] <... mmap resumed>) = 0x20000000 [pid 493] <... clone resumed>, parent_tid=[495], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 495 [pid 493] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 490] <... mmap resumed>) = 0x20000000 [pid 493] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 491] close(4 [pid 485] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 491] <... close resumed>) = 0 [pid 490] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 485] <... futex resumed>) = 1 [pid 483] <... futex resumed>) = 0 [pid 483] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 491] close(3 [pid 490] <... futex resumed>) = 1 [pid 488] <... futex resumed>) = 0 [pid 485] madvise(0x20000000, 6291467, MADV_REMOVE [pid 488] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 483] <... futex resumed>) = 0 [pid 488] <... futex resumed>) = 0 [pid 483] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 488] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 491] <... close resumed>) = 0 [pid 490] madvise(0x20000000, 6291467, MADV_REMOVE [pid 484] <... mmap resumed>) = 0x20000000 [pid 491] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 487] <... futex resumed>) = 0 [pid 487] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 487] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 491] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 484] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 491] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 484] <... futex resumed>) = 0 [pid 491] <... futex resumed>) = 1 [pid 487] <... futex resumed>) = 0 [pid 484] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 487] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 487] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 495 attached [pid 491] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 495] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 491] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 487] <... futex resumed>) = 0 [pid 491] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 487] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 487] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 495] memfd_create("syzkaller", 0 [pid 491] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 491] ftruncate(4, 33587195 [pid 495] <... memfd_create resumed>) = 3 [pid 495] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 495] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 495] munmap(0x7f5626f3a000, 1048576) = 0 [pid 495] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 495] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 495] ioctl(4, LOOP_CLR_FD) = 0 [pid 495] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 495] close(4) = 0 [pid 494] <... madvise resumed>) = 0 [pid 492] <... sendfile resumed>) = 4 [pid 492] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 491] <... ftruncate resumed>) = 0 [pid 490] <... madvise resumed>) = 0 [pid 489] <... futex resumed>) = 0 [pid 485] <... madvise resumed>) = 0 [pid 492] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 491] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 490] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 489] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 485] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 492] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 491] <... futex resumed>) = 1 [pid 490] <... futex resumed>) = 1 [pid 489] <... futex resumed>) = 0 [pid 488] <... futex resumed>) = 0 [pid 487] <... futex resumed>) = 0 [pid 485] <... futex resumed>) = 1 [pid 483] <... futex resumed>) = 0 [pid 492] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 491] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 490] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 489] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 488] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 487] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 485] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 483] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 482] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 495] close(3 [pid 494] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 488] <... futex resumed>) = 0 [pid 487] <... futex resumed>) = 0 [pid 482] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 491] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 490] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 488] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 487] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 485] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 484] <... futex resumed>) = 0 [pid 483] <... futex resumed>) = 0 [pid 482] <... futex resumed>) = 1 [pid 491] sendfile(3, 4, NULL, 4 [pid 490] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 485] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 484] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 483] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 482] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 484] <... openat resumed>) = 5 [pid 490] <... openat resumed>) = 5 [pid 490] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 484] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 485] <... openat resumed>) = 5 [pid 490] <... futex resumed>) = 1 [pid 488] <... futex resumed>) = 0 [pid 485] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 484] <... futex resumed>) = 1 [pid 482] <... futex resumed>) = 0 [pid 490] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 488] exit_group(0 [pid 484] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 488] <... exit_group resumed>) = ? [pid 485] <... futex resumed>) = 1 [pid 483] <... futex resumed>) = 0 [pid 482] exit_group(0 [pid 490] <... futex resumed>) = ? [pid 484] <... futex resumed>) = ? [pid 483] exit_group(0 [pid 482] <... exit_group resumed>) = ? [pid 495] <... close resumed>) = 0 [pid 495] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 490] +++ exited with 0 +++ [pid 488] +++ exited with 0 +++ [pid 483] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=488, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 484] +++ exited with 0 +++ [pid 491] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 491] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 487] <... futex resumed>) = 0 [pid 493] <... futex resumed>) = 0 [pid 493] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 495] <... futex resumed>) = 1 [pid 493] <... futex resumed>) = 0 [pid 495] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 493] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 495] <... open resumed>) = 3 [pid 495] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 493] <... futex resumed>) = 0 [pid 495] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 493] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 495] <... open resumed>) = 4 [pid 493] <... futex resumed>) = 0 [pid 495] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 493] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 495] <... futex resumed>) = 0 [pid 493] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 295] <... restart_syscall resumed>) = 0 [pid 495] ftruncate(4, 33587195 [pid 493] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 493] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 295] ioctl(3, LOOP_CLR_FD [pid 485] +++ exited with 0 +++ [pid 483] +++ exited with 0 +++ [pid 491] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 487] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... ioctl resumed>) = 0 [pid 295] close(3 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=483, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 494] <... futex resumed>) = ? [pid 487] <... futex resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 495] <... ftruncate resumed>) = 0 [pid 494] +++ exited with 0 +++ [pid 487] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 482] +++ exited with 0 +++ [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] <... restart_syscall resumed>) = 0 [pid 495] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 493] <... futex resumed>) = 0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=482, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 496 [pid 495] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 493] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 495] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 493] <... futex resumed>) = 0 [pid 296] <... openat resumed>) = 3 [pid 293] <... openat resumed>) = 3 [pid 495] sendfile(3, 4, NULL, 4 [pid 493] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] ioctl(3, LOOP_CLR_FD [pid 293] ioctl(3, LOOP_CLR_FD [pid 495] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 296] <... ioctl resumed>) = 0 [pid 293] <... ioctl resumed>) = 0 [pid 495] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] close(3 [pid 293] close(3./strace-static-x86_64: Process 496 attached [pid 495] <... futex resumed>) = 1 [pid 493] <... futex resumed>) = 0 [pid 492] <... mmap resumed>) = 0x20000000 [pid 491] <... mmap resumed>) = 0x20000000 [pid 296] <... close resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 496] set_robust_list(0x5555573645e0, 24 [pid 495] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 493] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 492] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 491] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 496] <... set_robust_list resumed>) = 0 [pid 495] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 493] <... futex resumed>) = 0 [pid 492] <... futex resumed>) = 1 [pid 491] <... futex resumed>) = 1 [pid 489] <... futex resumed>) = 0 [pid 487] <... futex resumed>) = 0 [pid 496] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 495] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 493] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 492] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 491] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 489] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 487] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 498 attached [pid 496] <... prctl resumed>) = 0 [pid 492] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 491] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 487] <... futex resumed>) = 0 [pid 496] setpgid(0, 0 [pid 492] madvise(0x20000000, 6291467, MADV_REMOVE [pid 491] madvise(0x20000000, 6291467, MADV_REMOVE [pid 487] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 497 attached [pid 498] set_robust_list(0x5555573645e0, 24 [pid 496] <... setpgid resumed>) = 0 [pid 495] <... mmap resumed>) = 0x20000000 [pid 489] <... futex resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 497 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 498 [pid 495] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 489] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 496] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 495] <... futex resumed>) = 1 [pid 493] <... futex resumed>) = 0 [pid 495] madvise(0x20000000, 6291467, MADV_REMOVE [pid 493] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 497] set_robust_list(0x5555573645e0, 24 [pid 496] <... openat resumed>) = 3 [pid 496] write(3, "1000", 4 [pid 493] <... futex resumed>) = 0 [pid 496] <... write resumed>) = 4 [pid 493] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 496] close(3) = 0 [pid 496] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 496] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 496] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 496] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 497] <... set_robust_list resumed>) = 0 [pid 496] <... clone resumed>, parent_tid=[499], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 499 [pid 497] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 496] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 498] <... set_robust_list resumed>) = 0 [pid 497] <... prctl resumed>) = 0 [pid 496] <... futex resumed>) = 0 [pid 498] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 496] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 498] <... prctl resumed>) = 0 [pid 497] setpgid(0, 0 [pid 498] setpgid(0, 0 [pid 497] <... setpgid resumed>) = 0 [pid 498] <... setpgid resumed>) = 0 [pid 497] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 498] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 497] <... openat resumed>) = 3 [pid 498] <... openat resumed>) = 3 [pid 497] write(3, "1000", 4) = 4 [pid 498] write(3, "1000", 4 [pid 497] close(3 [pid 498] <... write resumed>) = 4 [pid 497] <... close resumed>) = 0 [pid 497] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 498] close(3 [pid 497] <... futex resumed>) = 0 [pid 498] <... close resumed>) = 0 [pid 497] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 498] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 497] <... mmap resumed>) = 0x7f562f33a000 [pid 498] <... futex resumed>) = 0 [pid 497] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 498] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 497] <... mprotect resumed>) = 0 [pid 498] <... mmap resumed>) = 0x7f562f33a000 [pid 497] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 498] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 499 attached [pid 499] set_robust_list(0x7f562f35a9e0, 24 [pid 498] <... mprotect resumed>) = 0 [pid 497] <... clone resumed>, parent_tid=[500], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 500 [pid 499] <... set_robust_list resumed>) = 0 [pid 497] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 499] memfd_create("syzkaller", 0 [pid 498] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 497] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 499] <... memfd_create resumed>) = 3 [pid 499] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 498] <... clone resumed>, parent_tid=[501], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 501 [pid 499] <... mmap resumed>) = 0x7f5626f3a000 [pid 498] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 498] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 500 attached [pid 500] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 500] memfd_create("syzkaller", 0) = 3 [pid 500] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 500] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 499] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 501 attached [pid 501] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 501] memfd_create("syzkaller", 0 [pid 500] <... write resumed>) = 1048576 [pid 501] <... memfd_create resumed>) = 3 [pid 501] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 500] munmap(0x7f5626f3a000, 1048576 [pid 495] <... madvise resumed>) = 0 [pid 492] <... madvise resumed>) = 0 [pid 491] <... madvise resumed>) = 0 [pid 495] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 491] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 495] <... futex resumed>) = 1 [pid 493] <... futex resumed>) = 0 [pid 491] <... futex resumed>) = 1 [pid 487] <... futex resumed>) = 0 [pid 495] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 493] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 491] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 487] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 495] <... openat resumed>) = 5 [pid 493] <... futex resumed>) = 0 [pid 491] <... openat resumed>) = 5 [pid 487] <... futex resumed>) = 0 [pid 495] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 493] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 491] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 487] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 495] <... futex resumed>) = 0 [pid 493] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 491] <... futex resumed>) = 0 [pid 487] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 492] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 489] <... futex resumed>) = 0 [pid 492] <... futex resumed>) = 1 [pid 489] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 495] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 493] exit_group(0 [pid 492] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 491] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 489] <... futex resumed>) = 0 [pid 487] exit_group(0 [pid 489] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 492] <... openat resumed>) = 5 [pid 495] <... futex resumed>) = ? [pid 493] <... exit_group resumed>) = ? [pid 491] <... futex resumed>) = ? [pid 487] <... exit_group resumed>) = ? [pid 501] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 500] <... munmap resumed>) = 0 [pid 499] <... write resumed>) = 1048576 [pid 492] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 491] +++ exited with 0 +++ [pid 487] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=487, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 495] +++ exited with 0 +++ [pid 493] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=493, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 294] <... openat resumed>) = 3 [pid 292] <... openat resumed>) = 3 [pid 294] ioctl(3, LOOP_CLR_FD [pid 292] ioctl(3, LOOP_CLR_FD [pid 294] <... ioctl resumed>) = 0 [pid 292] <... ioctl resumed>) = 0 [pid 294] close(3 [pid 292] close(3 [pid 501] <... write resumed>) = 1048576 [pid 500] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 499] munmap(0x7f5626f3a000, 1048576 [pid 492] <... futex resumed>) = 1 [pid 294] <... close resumed>) = 0 [pid 492] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 500] <... openat resumed>) = 4 [pid 499] <... munmap resumed>) = 0 [pid 500] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 500] ioctl(4, LOOP_CLR_FD) = 0 [pid 499] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 499] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 499] ioctl(4, LOOP_CLR_FD) = 0 [pid 489] <... futex resumed>) = 0 [pid 489] exit_group(0) = ? [pid 492] <... futex resumed>) = ? [pid 492] +++ exited with 0 +++ [pid 489] +++ exited with 0 +++ [pid 500] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 500] close(4) = 0 [pid 500] close(3 [pid 499] ioctl(4, LOOP_SET_FD, 3 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... close resumed>) = 0 [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=489, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 499] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 499] close(4) = 0 [pid 499] close(3 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 502 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 503 [pid 291] ioctl(3, LOOP_CLR_FD) = 0 [pid 291] close(3) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 504 [pid 499] <... close resumed>) = 0 [pid 500] <... close resumed>) = 0 [pid 500] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 497] <... futex resumed>) = 0 [pid 497] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 497] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 500] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 500] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 497] <... futex resumed>) = 0 [pid 497] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 501] munmap(0x7f5626f3a000, 1048576 [pid 497] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 500] <... futex resumed>) = 1 [pid 501] <... munmap resumed>) = 0 [pid 500] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 499] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 496] <... futex resumed>) = 0 [pid 496] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 501] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 496] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 501] <... openat resumed>) = 4 [pid 501] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 500] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 499] <... futex resumed>) = 1 [pid 497] <... futex resumed>) = 0 [pid 497] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 497] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 504 attached ./strace-static-x86_64: Process 502 attached [pid 501] ioctl(4, LOOP_CLR_FD) = 0 [pid 504] set_robust_list(0x5555573645e0, 24 [pid 502] set_robust_list(0x5555573645e0, 24 [pid 499] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 500] <... futex resumed>) = 1 [pid 499] <... open resumed>) = 3 [pid 500] ftruncate(4, 33587195./strace-static-x86_64: Process 503 attached ) = 0 [pid 499] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 502] <... set_robust_list resumed>) = 0 [pid 504] <... set_robust_list resumed>) = 0 [pid 501] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 502] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 501] close(4 [pid 504] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 503] set_robust_list(0x5555573645e0, 24 [pid 502] <... prctl resumed>) = 0 [pid 501] <... close resumed>) = 0 [pid 500] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 499] <... futex resumed>) = 1 [pid 496] <... futex resumed>) = 0 [pid 504] <... prctl resumed>) = 0 [pid 503] <... set_robust_list resumed>) = 0 [pid 502] setpgid(0, 0 [pid 501] close(3 [pid 500] <... futex resumed>) = 1 [pid 499] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 497] <... futex resumed>) = 0 [pid 496] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 503] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 500] sendfile(3, 4, NULL, 4 [pid 499] <... open resumed>) = 4 [pid 497] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 496] <... futex resumed>) = 0 [pid 503] <... prctl resumed>) = 0 [pid 499] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 497] <... futex resumed>) = 0 [pid 496] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 503] setpgid(0, 0 [pid 499] <... futex resumed>) = 0 [pid 497] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 496] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 503] <... setpgid resumed>) = 0 [pid 500] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 499] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 496] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 504] setpgid(0, 0 [pid 503] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 502] <... setpgid resumed>) = 0 [pid 501] <... close resumed>) = 0 [pid 500] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 499] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 496] <... futex resumed>) = 0 [pid 503] <... openat resumed>) = 3 [pid 500] <... futex resumed>) = 1 [pid 499] ftruncate(4, 33587195 [pid 497] <... futex resumed>) = 0 [pid 496] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 503] write(3, "1000", 4 [pid 500] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 499] <... ftruncate resumed>) = 0 [pid 497] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 504] <... setpgid resumed>) = 0 [pid 503] <... write resumed>) = 4 [pid 502] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 501] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 499] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 497] <... futex resumed>) = 0 [pid 503] close(3 [pid 499] <... futex resumed>) = 1 [pid 497] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 496] <... futex resumed>) = 0 [pid 503] <... close resumed>) = 0 [pid 499] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 496] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 503] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 499] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 496] <... futex resumed>) = 0 [pid 503] <... futex resumed>) = 0 [pid 499] sendfile(3, 4, NULL, 4 [pid 496] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 503] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 499] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 503] <... mmap resumed>) = 0x7f562f33a000 [pid 499] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 503] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 499] <... futex resumed>) = 1 [pid 496] <... futex resumed>) = 0 [pid 503] <... mprotect resumed>) = 0 [pid 499] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 496] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 503] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 499] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 496] <... futex resumed>) = 0 [pid 504] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 502] <... openat resumed>) = 3 [pid 501] <... futex resumed>) = 1 [pid 499] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 498] <... futex resumed>) = 0 [pid 496] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 504] <... openat resumed>) = 3 [pid 503] <... clone resumed>, parent_tid=[505], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 505 [pid 502] write(3, "1000", 4 [pid 501] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 498] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 504] write(3, "1000", 4 [pid 503] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 502] <... write resumed>) = 4 [pid 501] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 498] <... futex resumed>) = 0 [pid 504] <... write resumed>) = 4 [pid 503] <... futex resumed>) = 0 [pid 502] close(3 [pid 501] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 498] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 504] close(3 [pid 503] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 502] <... close resumed>) = 0 [pid 501] <... open resumed>) = 3 ./strace-static-x86_64: Process 505 attached [pid 505] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 505] memfd_create("syzkaller", 0) = 3 [pid 505] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 504] <... close resumed>) = 0 [pid 502] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 501] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 504] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 502] <... futex resumed>) = 0 [pid 501] <... futex resumed>) = 1 [pid 498] <... futex resumed>) = 0 [pid 504] <... futex resumed>) = 0 [pid 502] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 501] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 498] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 504] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 502] <... mmap resumed>) = 0x7f562f33a000 [pid 501] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 498] <... futex resumed>) = 0 [pid 504] <... mmap resumed>) = 0x7f562f33a000 [pid 502] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 501] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 498] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 504] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 502] <... mprotect resumed>) = 0 [pid 501] <... open resumed>) = 4 [pid 504] <... mprotect resumed>) = 0 [pid 502] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 501] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 504] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 501] <... futex resumed>) = 1 [pid 498] <... futex resumed>) = 0 [pid 501] ftruncate(4, 33587195 [pid 498] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 502] <... clone resumed>, parent_tid=[506], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 506 [pid 498] <... futex resumed>) = 0 [pid 504] <... clone resumed>, parent_tid=[507], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 507 [pid 502] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 498] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 504] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 502] <... futex resumed>) = 0 [pid 504] <... futex resumed>) = 0 [pid 502] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 504] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 507 attached [pid 507] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 507] memfd_create("syzkaller", 0) = 3 [pid 507] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 506 attached [pid 507] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 505] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 501] <... ftruncate resumed>) = 0 [pid 506] set_robust_list(0x7f562f35a9e0, 24 [pid 505] <... write resumed>) = 1048576 [pid 501] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 506] <... set_robust_list resumed>) = 0 [pid 501] <... futex resumed>) = 1 [pid 498] <... futex resumed>) = 0 [pid 506] memfd_create("syzkaller", 0 [pid 501] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 498] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 506] <... memfd_create resumed>) = 3 [pid 501] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 498] <... futex resumed>) = 0 [pid 506] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 501] sendfile(3, 4, NULL, 4 [pid 498] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 506] <... mmap resumed>) = 0x7f5626f3a000 [pid 501] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 501] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 498] <... futex resumed>) = 0 [pid 501] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 498] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 505] munmap(0x7f5626f3a000, 1048576 [pid 501] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 498] <... futex resumed>) = 0 [pid 505] <... munmap resumed>) = 0 [pid 501] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 498] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 505] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 501] <... mmap resumed>) = 0x20000000 [pid 500] <... mmap resumed>) = 0x20000000 [pid 499] <... mmap resumed>) = 0x20000000 [pid 505] <... openat resumed>) = 4 [pid 505] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 505] ioctl(4, LOOP_CLR_FD) = 0 [pid 500] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 497] <... futex resumed>) = 0 [pid 497] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 501] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 497] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 501] <... futex resumed>) = 1 [pid 498] <... futex resumed>) = 0 [pid 501] madvise(0x20000000, 6291467, MADV_REMOVE [pid 498] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 505] ioctl(4, LOOP_SET_FD, 3 [pid 498] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 505] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 505] close(4) = 0 [pid 505] close(3) = 0 [pid 500] <... futex resumed>) = 1 [pid 500] madvise(0x20000000, 6291467, MADV_REMOVE [pid 505] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 503] <... futex resumed>) = 0 [pid 503] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 503] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 505] <... futex resumed>) = 1 [pid 505] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 505] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 503] <... futex resumed>) = 0 [pid 505] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 503] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 505] <... open resumed>) = 4 [pid 503] <... futex resumed>) = 0 [pid 505] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 503] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 505] <... futex resumed>) = 0 [pid 503] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 505] ftruncate(4, 33587195 [pid 503] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 503] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 499] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 496] <... futex resumed>) = 0 [pid 496] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 496] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 499] <... futex resumed>) = 1 [pid 499] madvise(0x20000000, 6291467, MADV_REMOVE [pid 507] <... write resumed>) = 1048576 [pid 507] munmap(0x7f5626f3a000, 1048576) = 0 [pid 507] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 507] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 507] ioctl(4, LOOP_CLR_FD) = 0 [pid 506] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 506] munmap(0x7f5626f3a000, 1048576 [pid 507] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 506] <... munmap resumed>) = 0 [pid 507] close(4) = 0 [pid 507] close(3 [pid 506] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 506] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 506] ioctl(4, LOOP_CLR_FD) = 0 [pid 506] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 506] close(4 [pid 507] <... close resumed>) = 0 [pid 506] <... close resumed>) = 0 [pid 505] <... ftruncate resumed>) = 0 [pid 501] <... madvise resumed>) = 0 [pid 500] <... madvise resumed>) = 0 [pid 499] <... madvise resumed>) = 0 [pid 507] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 505] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 500] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 499] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 507] <... futex resumed>) = 1 [pid 505] <... futex resumed>) = 1 [pid 504] <... futex resumed>) = 0 [pid 503] <... futex resumed>) = 0 [pid 500] <... futex resumed>) = 1 [pid 499] <... futex resumed>) = 1 [pid 497] <... futex resumed>) = 0 [pid 496] <... futex resumed>) = 0 [pid 507] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 505] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 504] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 503] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 500] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 499] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 497] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 496] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 504] <... futex resumed>) = 0 [pid 503] <... futex resumed>) = 0 [pid 500] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 499] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 497] <... futex resumed>) = 0 [pid 496] <... futex resumed>) = 0 [pid 507] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 505] sendfile(3, 4, NULL, 4 [pid 504] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 503] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 500] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 499] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 497] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 496] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 507] <... open resumed>) = 3 [pid 506] close(3 [pid 501] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 500] <... openat resumed>) = 5 [pid 499] <... openat resumed>) = 5 [pid 507] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 500] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 499] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 507] <... futex resumed>) = 1 [pid 505] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 504] <... futex resumed>) = 0 [pid 500] <... futex resumed>) = 1 [pid 499] <... futex resumed>) = 1 [pid 497] <... futex resumed>) = 0 [pid 496] <... futex resumed>) = 0 [pid 507] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 505] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 504] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 501] <... futex resumed>) = 1 [pid 500] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 499] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 498] <... futex resumed>) = 0 [pid 497] exit_group(0 [pid 496] exit_group(0 [pid 507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 505] <... futex resumed>) = 1 [pid 504] <... futex resumed>) = 0 [pid 503] <... futex resumed>) = 0 [pid 500] <... futex resumed>) = ? [pid 499] <... futex resumed>) = ? [pid 498] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 497] <... exit_group resumed>) = ? [pid 496] <... exit_group resumed>) = ? [pid 507] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 505] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 504] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 503] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 500] +++ exited with 0 +++ [pid 498] <... futex resumed>) = 0 [pid 501] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5 [pid 501] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 501] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 507] <... open resumed>) = 4 [pid 506] <... close resumed>) = 0 [pid 503] <... futex resumed>) = 0 [pid 498] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 497] +++ exited with 0 +++ [pid 498] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 507] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 505] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 503] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=497, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 296] ioctl(3, LOOP_CLR_FD) = 0 [pid 296] close(3 [pid 507] <... futex resumed>) = 1 [pid 506] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 505] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 504] <... futex resumed>) = 0 [pid 499] +++ exited with 0 +++ [pid 498] exit_group(0 [pid 496] +++ exited with 0 +++ [pid 296] <... close resumed>) = 0 [pid 507] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 504] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 501] <... futex resumed>) = ? [pid 498] <... exit_group resumed>) = ? [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 504] <... futex resumed>) = 0 [pid 501] +++ exited with 0 +++ [pid 498] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=496, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 507] ftruncate(4, 33587195 [pid 506] <... futex resumed>) = 1 [pid 504] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 502] <... futex resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 508 [pid 506] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 502] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=498, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 507] <... ftruncate resumed>) = 0 [pid 502] <... futex resumed>) = 0 [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 507] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 506] <... open resumed>) = 3 [pid 502] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] <... openat resumed>) = 3 [pid 293] <... openat resumed>) = 3 [pid 507] <... futex resumed>) = 1 [pid 504] <... futex resumed>) = 0 [pid 295] ioctl(3, LOOP_CLR_FD [pid 293] ioctl(3, LOOP_CLR_FD [pid 507] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 504] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... ioctl resumed>) = 0 [pid 293] <... ioctl resumed>) = 0 [pid 507] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 504] <... futex resumed>) = 0 [pid 295] close(3 [pid 293] close(3 [pid 507] sendfile(3, 4, NULL, 4 [pid 506] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 504] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] <... close resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 506] <... futex resumed>) = 1 [pid 502] <... futex resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 508 attached [pid 506] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 502] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 509 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 510 [pid 502] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 508] set_robust_list(0x5555573645e0, 24 [pid 507] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 506] <... open resumed>) = 4 [pid 508] <... set_robust_list resumed>) = 0 [pid 507] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 506] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 507] <... futex resumed>) = 1 [pid 506] <... futex resumed>) = 1 [pid 504] <... futex resumed>) = 0 [pid 502] <... futex resumed>) = 0 [pid 508] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 507] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 506] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 504] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 502] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 506] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 504] <... futex resumed>) = 0 [pid 502] <... futex resumed>) = 0 [pid 502] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 509 attached [pid 508] <... prctl resumed>) = 0 [pid 506] ftruncate(4, 33587195 [pid 504] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 506] <... ftruncate resumed>) = 0 [pid 508] setpgid(0, 0 [pid 506] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 510 attached [pid 510] set_robust_list(0x5555573645e0, 24) = 0 [pid 509] set_robust_list(0x5555573645e0, 24 [pid 508] <... setpgid resumed>) = 0 [pid 506] <... futex resumed>) = 1 [pid 502] <... futex resumed>) = 0 [pid 502] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 502] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 506] sendfile(3, 4, NULL, 4 [pid 509] <... set_robust_list resumed>) = 0 [pid 508] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 506] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 508] <... openat resumed>) = 3 [pid 506] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 510] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 509] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 508] write(3, "1000", 4 [pid 506] <... futex resumed>) = 1 [pid 502] <... futex resumed>) = 0 [pid 510] <... prctl resumed>) = 0 [pid 502] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 510] setpgid(0, 0 [pid 502] <... futex resumed>) = 0 [pid 506] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 510] <... setpgid resumed>) = 0 [pid 509] <... prctl resumed>) = 0 [pid 508] <... write resumed>) = 4 [pid 502] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 510] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 510] write(3, "1000", 4) = 4 [pid 510] close(3) = 0 [pid 510] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 510] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 510] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 510] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[511], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 511 [pid 510] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 510] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 509] setpgid(0, 0 [pid 508] close(3 [pid 506] <... mmap resumed>) = 0x20000000 [pid 509] <... setpgid resumed>) = 0 [pid 508] <... close resumed>) = 0 [pid 506] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 508] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 506] <... futex resumed>) = 1 [pid 502] <... futex resumed>) = 0 [pid 509] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 508] <... futex resumed>) = 0 [pid 506] madvise(0x20000000, 6291467, MADV_REMOVE [pid 502] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 511 attached [pid 511] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 508] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 502] <... futex resumed>) = 0 [pid 502] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 508] <... mmap resumed>) = 0x7f562f33a000 [pid 508] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 508] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 511] memfd_create("syzkaller", 0) = 3 [pid 511] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 508] <... clone resumed>, parent_tid=[512], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 512 [pid 508] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 511] <... mmap resumed>) = 0x7f5626f3a000 [pid 508] <... futex resumed>) = 0 [pid 508] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 509] <... openat resumed>) = 3 ./strace-static-x86_64: Process 512 attached [pid 512] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 512] memfd_create("syzkaller", 0) = 3 [pid 512] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 511] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 509] write(3, "1000", 4) = 4 [pid 509] close(3 [pid 503] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 509] <... close resumed>) = 0 [pid 503] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 503] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 509] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 509] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 509] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 509] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[513], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 513 [pid 507] <... mmap resumed>) = 0x20000000 [pid 509] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 509] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 505] <... mmap resumed>) = 0x20000000 [pid 503] <... mmap resumed>) = 0x7f5627019000 ./strace-static-x86_64: Process 513 attached [pid 507] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 505] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 503] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 507] <... futex resumed>) = 1 [pid 504] <... futex resumed>) = 0 [pid 513] set_robust_list(0x7f562f35a9e0, 24 [pid 507] madvise(0x20000000, 6291467, MADV_REMOVE [pid 505] <... futex resumed>) = 0 [pid 504] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 503] <... mprotect resumed>) = 0 [pid 513] <... set_robust_list resumed>) = 0 [pid 505] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 504] <... futex resumed>) = 0 [pid 503] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 504] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 513] memfd_create("syzkaller", 0 [pid 503] <... clone resumed>, parent_tid=[514], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 514 [pid 503] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 513] <... memfd_create resumed>) = 3 [pid 503] <... futex resumed>) = 0 [pid 503] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 513] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 512] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 511] <... write resumed>) = 1048576 [pid 513] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 511] munmap(0x7f5626f3a000, 1048576) = 0 [pid 511] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 511] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 511] ioctl(4, LOOP_CLR_FD) = 0 [pid 513] <... write resumed>) = 1048576 [pid 511] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 511] close(4./strace-static-x86_64: Process 514 attached [pid 513] munmap(0x7f5626f3a000, 1048576 [pid 507] <... madvise resumed>) = 0 [pid 506] <... madvise resumed>) = 0 [pid 507] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 504] <... futex resumed>) = 0 [pid 504] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 511] <... close resumed>) = 0 [pid 511] close(3 [pid 507] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 504] <... futex resumed>) = 0 [pid 514] set_robust_list(0x7f56270399e0, 24 [pid 513] <... munmap resumed>) = 0 [pid 507] <... openat resumed>) = 5 [pid 506] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 504] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 513] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 507] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 513] <... openat resumed>) = 4 [pid 502] <... futex resumed>) = 0 [pid 507] <... futex resumed>) = 1 [pid 504] <... futex resumed>) = 0 [pid 506] <... futex resumed>) = 1 [pid 514] <... set_robust_list resumed>) = 0 [pid 514] madvise(0x20000000, 6291467, MADV_REMOVE [pid 513] ioctl(4, LOOP_SET_FD, 3 [pid 507] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 506] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 504] exit_group(0 [pid 502] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 513] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 507] <... futex resumed>) = ? [pid 506] <... openat resumed>) = 5 [pid 504] <... exit_group resumed>) = ? [pid 502] <... futex resumed>) = 0 [pid 502] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 511] <... close resumed>) = 0 [pid 511] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 510] <... futex resumed>) = 0 [pid 510] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 510] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 507] +++ exited with 0 +++ [pid 504] +++ exited with 0 +++ [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=504, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 513] ioctl(4, LOOP_CLR_FD [pid 506] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 513] <... ioctl resumed>) = 0 [pid 506] <... futex resumed>) = 1 [pid 502] <... futex resumed>) = 0 [pid 511] <... futex resumed>) = 1 [pid 502] exit_group(0 [pid 511] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 502] <... exit_group resumed>) = ? [pid 511] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 510] <... futex resumed>) = 0 [pid 510] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 510] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 511] <... futex resumed>) = 1 [pid 511] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 511] <... open resumed>) = 4 [pid 291] <... openat resumed>) = 3 [pid 511] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 514] <... madvise resumed>) = 0 [pid 291] ioctl(3, LOOP_CLR_FD [pid 511] <... futex resumed>) = 1 [pid 510] <... futex resumed>) = 0 [pid 291] <... ioctl resumed>) = 0 [pid 511] ftruncate(4, 33587195 [pid 510] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] close(3 [pid 514] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 512] <... write resumed>) = 1048576 [pid 511] <... ftruncate resumed>) = 0 [pid 510] <... futex resumed>) = 0 [pid 506] +++ exited with 0 +++ [pid 502] +++ exited with 0 +++ [pid 291] <... close resumed>) = 0 [pid 514] <... futex resumed>) = 1 [pid 513] ioctl(4, LOOP_SET_FD, 3 [pid 512] munmap(0x7f5626f3a000, 1048576 [pid 510] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 503] <... futex resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=502, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 514] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 513] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 512] <... munmap resumed>) = 0 [pid 503] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 513] close(4 [pid 512] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 505] <... futex resumed>) = 0 [pid 503] <... futex resumed>) = 1 [pid 513] <... close resumed>) = 0 [pid 512] <... openat resumed>) = 4 [pid 505] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 503] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 515 [pid 513] close(3 [pid 512] ioctl(4, LOOP_SET_FD, 3 [pid 505] <... openat resumed>) = 5 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 513] <... close resumed>) = 0 [pid 512] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 505] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... openat resumed>) = 3 [pid 513] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 512] ioctl(4, LOOP_CLR_FD [pid 505] <... futex resumed>) = 1 [pid 503] <... futex resumed>) = 0 [pid 513] <... futex resumed>) = 1 [pid 512] <... ioctl resumed>) = 0 [pid 509] <... futex resumed>) = 0 [pid 505] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 503] exit_group(0 [pid 294] ioctl(3, LOOP_CLR_FD [pid 514] <... futex resumed>) = ? [pid 513] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 509] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 505] <... futex resumed>) = ? [pid 503] <... exit_group resumed>) = ? [pid 294] <... ioctl resumed>) = 0 [pid 514] +++ exited with 0 +++ [pid 513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 509] <... futex resumed>) = 0 [pid 505] +++ exited with 0 +++ [pid 503] +++ exited with 0 +++ [pid 513] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 512] ioctl(4, LOOP_SET_FD, 3 [pid 509] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 513] <... open resumed>) = 3 [pid 512] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 513] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 512] close(4 [pid 513] <... futex resumed>) = 1 [pid 512] <... close resumed>) = 0 [pid 509] <... futex resumed>) = 0 [pid 513] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 512] close(3 [pid 509] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 512] <... close resumed>) = 0 [pid 511] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 509] <... futex resumed>) = 0 [pid 294] close(3 [pid 513] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 512] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 509] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... close resumed>) = 0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=503, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 513] <... open resumed>) = 4 [pid 512] <... futex resumed>) = 1 [pid 511] <... futex resumed>) = 1 [pid 510] <... futex resumed>) = 0 [pid 508] <... futex resumed>) = 0 [pid 513] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 512] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 511] sendfile(3, 4, NULL, 4 [pid 510] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 508] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 513] <... futex resumed>) = 1 [pid 512] <... open resumed>) = 3 [pid 510] <... futex resumed>) = 0 [pid 509] <... futex resumed>) = 0 [pid 508] <... futex resumed>) = 0 [pid 513] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 512] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 509] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 508] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 512] <... futex resumed>) = 0 [pid 510] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 509] <... futex resumed>) = 0 [pid 508] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 292] <... restart_syscall resumed>) = 0 [pid 513] ftruncate(4, 33587195 [pid 512] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 511] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 509] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 508] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 516 [pid 513] <... ftruncate resumed>) = 0 [pid 512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 511] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 508] <... futex resumed>) = 0 [pid 513] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 512] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 511] <... futex resumed>) = 1 [pid 510] <... futex resumed>) = 0 [pid 508] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 513] <... futex resumed>) = 1 [pid 512] <... open resumed>) = 4 [pid 511] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 510] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 509] <... futex resumed>) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 513] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 512] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 510] <... futex resumed>) = 0 [pid 509] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 512] <... futex resumed>) = 1 [pid 510] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 509] <... futex resumed>) = 0 [pid 508] <... futex resumed>) = 0 [pid 292] <... openat resumed>) = 3 [pid 513] sendfile(3, 4, NULL, 4 [pid 512] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 509] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 508] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 516 attached [pid 513] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 508] <... futex resumed>) = 0 [pid 292] ioctl(3, LOOP_CLR_FD [pid 516] set_robust_list(0x5555573645e0, 24 [pid 513] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 512] ftruncate(4, 33587195 [pid 508] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... ioctl resumed>) = 0 [pid 516] <... set_robust_list resumed>) = 0 [pid 513] <... futex resumed>) = 1 [pid 509] <... futex resumed>) = 0 [pid 516] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 513] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 512] <... ftruncate resumed>) = 0 [pid 509] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] close(3 [pid 516] <... prctl resumed>) = 0 [pid 513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 512] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 509] <... futex resumed>) = 0 [pid 516] setpgid(0, 0 [pid 513] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 512] <... futex resumed>) = 1 [pid 509] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 508] <... futex resumed>) = 0 [pid 292] <... close resumed>) = 0 ./strace-static-x86_64: Process 515 attached [pid 516] <... setpgid resumed>) = 0 [pid 512] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 508] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 516] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 515] set_robust_list(0x5555573645e0, 24 [pid 512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 508] <... futex resumed>) = 0 [pid 516] <... openat resumed>) = 3 [pid 512] sendfile(3, 4, NULL, 4 [pid 508] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 516] write(3, "1000", 4 [pid 515] <... set_robust_list resumed>) = 0 [pid 512] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 516] <... write resumed>) = 4 [pid 515] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 512] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 517 [pid 516] close(3 [pid 515] <... prctl resumed>) = 0 [pid 512] <... futex resumed>) = 1 [pid 508] <... futex resumed>) = 0 [pid 516] <... close resumed>) = 0 [pid 515] setpgid(0, 0 [pid 512] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 508] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 516] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 515] <... setpgid resumed>) = 0 [pid 512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 508] <... futex resumed>) = 0 [pid 516] <... futex resumed>) = 0 [pid 515] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 512] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 508] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 516] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 515] <... openat resumed>) = 3 [pid 516] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 516] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[518], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 518 [pid 516] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 515] write(3, "1000", 4) = 4 [pid 515] close(3) = 0 ./strace-static-x86_64: Process 517 attached [pid 516] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 517] set_robust_list(0x5555573645e0, 24 [pid 515] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 517] <... set_robust_list resumed>) = 0 [pid 515] <... futex resumed>) = 0 [pid 517] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 515] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 517] <... prctl resumed>) = 0 [pid 515] <... mmap resumed>) = 0x7f562f33a000 [pid 517] setpgid(0, 0 [pid 515] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 517] <... setpgid resumed>) = 0 [pid 515] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 517] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 515] <... clone resumed>, parent_tid=[519], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 519 [pid 517] write(3, "1000", 4 [pid 515] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 517] <... write resumed>) = 4 [pid 515] <... futex resumed>) = 0 [pid 517] close(3 [pid 515] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 517] <... close resumed>) = 0 [pid 517] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 517] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 517] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 517] clone(child_stack=0x7f562f35a3f0, 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 518 attached [pid 518] set_robust_list(0x7f562f35a9e0, 24 [pid 517] <... clone resumed>, parent_tid=[520], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 520 [pid 518] <... set_robust_list resumed>) = 0 [pid 517] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 518] memfd_create("syzkaller", 0 [pid 517] <... futex resumed>) = 0 ./strace-static-x86_64: Process 519 attached [pid 518] <... memfd_create resumed>) = 3 [pid 517] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 519] set_robust_list(0x7f562f35a9e0, 24 [pid 518] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 519] <... set_robust_list resumed>) = 0 [pid 518] <... mmap resumed>) = 0x7f5626f3a000 [pid 512] <... mmap resumed>) = 0x20000000 [pid 511] <... mmap resumed>) = 0x20000000 ./strace-static-x86_64: Process 520 attached [pid 519] memfd_create("syzkaller", 0 [pid 513] <... mmap resumed>) = 0x20000000 [pid 512] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 511] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 520] set_robust_list(0x7f562f35a9e0, 24 [pid 519] <... memfd_create resumed>) = 3 [pid 518] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 513] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 512] <... futex resumed>) = 1 [pid 511] <... futex resumed>) = 1 [pid 510] <... futex resumed>) = 0 [pid 508] <... futex resumed>) = 0 [pid 520] <... set_robust_list resumed>) = 0 [pid 519] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 513] <... futex resumed>) = 1 [pid 512] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 511] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 510] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 509] <... futex resumed>) = 0 [pid 508] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 520] memfd_create("syzkaller", 0 [pid 519] <... mmap resumed>) = 0x7f5626f3a000 [pid 513] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 511] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 510] <... futex resumed>) = 0 [pid 509] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 508] <... futex resumed>) = 0 [pid 520] <... memfd_create resumed>) = 3 [pid 519] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 518] <... write resumed>) = 1048576 [pid 513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 512] madvise(0x20000000, 6291467, MADV_REMOVE [pid 511] madvise(0x20000000, 6291467, MADV_REMOVE [pid 510] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 509] <... futex resumed>) = 0 [pid 508] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 518] munmap(0x7f5626f3a000, 1048576 [pid 509] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 518] <... munmap resumed>) = 0 [pid 518] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 518] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 518] ioctl(4, LOOP_CLR_FD) = 0 [pid 520] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 520] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 513] madvise(0x20000000, 6291467, MADV_REMOVE [pid 518] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 518] close(4) = 0 [pid 518] close(3) = 0 [pid 518] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 516] <... futex resumed>) = 0 [pid 516] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 516] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 518] <... futex resumed>) = 1 [pid 518] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 518] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 516] <... futex resumed>) = 0 [pid 516] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 516] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 518] <... futex resumed>) = 1 [pid 518] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 518] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 516] <... futex resumed>) = 0 [pid 516] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 516] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 518] <... futex resumed>) = 1 [pid 518] ftruncate(4, 33587195 [pid 520] <... write resumed>) = 1048576 [pid 520] munmap(0x7f5626f3a000, 1048576) = 0 [pid 520] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 520] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 520] ioctl(4, LOOP_CLR_FD) = 0 [pid 519] <... write resumed>) = 1048576 [pid 519] munmap(0x7f5626f3a000, 1048576) = 0 [pid 519] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 519] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 519] ioctl(4, LOOP_CLR_FD) = 0 [pid 520] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 520] close(4) = 0 [pid 520] close(3 [pid 519] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 519] close(4) = 0 [pid 519] close(3) = 0 [pid 520] <... close resumed>) = 0 [pid 519] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 519] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 520] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 517] <... futex resumed>) = 0 [pid 517] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 517] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 520] <... futex resumed>) = 1 [pid 520] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 520] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 517] <... futex resumed>) = 0 [pid 517] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 517] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 520] <... futex resumed>) = 1 [pid 520] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 520] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 517] <... futex resumed>) = 0 [pid 517] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 517] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 520] <... futex resumed>) = 1 [pid 520] ftruncate(4, 33587195 [pid 515] <... futex resumed>) = 0 [pid 515] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 515] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 519] <... futex resumed>) = 0 [pid 519] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 519] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 515] <... futex resumed>) = 0 [pid 515] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 515] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 519] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 519] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 515] <... futex resumed>) = 0 [pid 519] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 515] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 515] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 519] <... futex resumed>) = 0 [pid 519] ftruncate(4, 33587195 [pid 513] <... madvise resumed>) = 0 [pid 511] <... madvise resumed>) = 0 [pid 518] <... ftruncate resumed>) = 0 [pid 513] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 518] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 513] <... futex resumed>) = 1 [pid 509] <... futex resumed>) = 0 [pid 513] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 518] <... futex resumed>) = 1 [pid 512] <... madvise resumed>) = 0 [pid 509] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 516] <... futex resumed>) = 0 [pid 513] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 520] <... ftruncate resumed>) = 0 [pid 518] sendfile(3, 4, NULL, 4 [pid 516] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 509] <... futex resumed>) = 0 [pid 519] <... ftruncate resumed>) = 0 [pid 516] <... futex resumed>) = 0 [pid 511] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 509] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 510] <... futex resumed>) = 0 [pid 510] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 510] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 511] <... futex resumed>) = 1 [pid 511] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 513] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 516] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 511] <... openat resumed>) = 5 [pid 511] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 510] <... futex resumed>) = 0 [pid 510] exit_group(0) = ? [pid 513] <... openat resumed>) = 5 [pid 519] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 512] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 520] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 519] <... futex resumed>) = 1 [pid 517] <... futex resumed>) = 0 [pid 515] <... futex resumed>) = 0 [pid 513] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 512] <... futex resumed>) = 1 [pid 508] <... futex resumed>) = 0 [pid 515] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 520] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 519] sendfile(3, 4, NULL, 4 [pid 518] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 517] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 515] <... futex resumed>) = 0 [pid 513] <... futex resumed>) = 1 [pid 512] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 509] <... futex resumed>) = 0 [pid 508] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 515] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 511] <... futex resumed>) = ? [pid 520] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 519] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 518] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 517] <... futex resumed>) = 0 [pid 513] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 512] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 509] exit_group(0 [pid 508] <... futex resumed>) = 0 [pid 520] sendfile(3, 4, NULL, 4 [pid 519] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 518] <... futex resumed>) = 1 [pid 517] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 516] <... futex resumed>) = 0 [pid 513] <... futex resumed>) = ? [pid 512] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 509] <... exit_group resumed>) = ? [pid 508] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 519] <... futex resumed>) = 1 [pid 518] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 516] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 515] <... futex resumed>) = 0 [pid 515] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 515] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 513] +++ exited with 0 +++ [pid 509] +++ exited with 0 +++ [pid 516] <... futex resumed>) = 0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=509, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 511] +++ exited with 0 +++ [pid 510] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=510, si_uid=0, si_status=0, si_utime=0, si_stime=5} --- [pid 295] <... restart_syscall resumed>) = 0 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 293] <... restart_syscall resumed>) = 0 [pid 295] ioctl(3, LOOP_CLR_FD) = 0 [pid 295] close(3 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 295] <... close resumed>) = 0 [pid 293] <... openat resumed>) = 3 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] ioctl(3, LOOP_CLR_FD) = 0 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 522 [pid 293] close(3 [pid 520] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 519] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 516] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 512] <... openat resumed>) = 5 [pid 293] <... close resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 520] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 512] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 523 [pid 512] <... futex resumed>) = 1 [pid 508] <... futex resumed>) = 0 [pid 520] <... futex resumed>) = 1 [pid 517] <... futex resumed>) = 0 [pid 512] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 520] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 517] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 508] exit_group(0 [pid 517] <... futex resumed>) = 0 [pid 512] <... futex resumed>) = ? [pid 508] <... exit_group resumed>) = ? ./strace-static-x86_64: Process 523 attached [pid 517] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 523] set_robust_list(0x5555573645e0, 24) = 0 [pid 523] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 523] setpgid(0, 0) = 0 [pid 523] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 512] +++ exited with 0 +++ [pid 508] +++ exited with 0 +++ [pid 523] write(3, "1000", 4) = 4 [pid 523] close(3 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=508, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 523] <... close resumed>) = 0 [pid 523] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 523] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 523] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 523] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3 [pid 523] <... clone resumed>, parent_tid=[524], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 524 [pid 296] ioctl(3, LOOP_CLR_FD [pid 523] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 523] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 296] <... ioctl resumed>) = 0 [pid 296] close(3./strace-static-x86_64: Process 522 attached [pid 522] set_robust_list(0x5555573645e0, 24) = 0 [pid 522] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 522] setpgid(0, 0) = 0 [pid 522] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 522] write(3, "1000", 4) = 4 [pid 522] close(3) = 0 [pid 522] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 522] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 522] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 522] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[525], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 525 [pid 522] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 522] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 524 attached [pid 524] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 519] <... mmap resumed>) = 0x20000000 [pid 296] <... close resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 520] <... mmap resumed>) = 0x20000000 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 526 [pid 520] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 517] <... futex resumed>) = 0 [pid 520] madvise(0x20000000, 6291467, MADV_REMOVE [pid 517] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 517] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 524] memfd_create("syzkaller", 0) = 3 [pid 524] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 526 attached [pid 526] set_robust_list(0x5555573645e0, 24) = 0 [pid 526] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 526] setpgid(0, 0) = 0 [pid 526] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 526] write(3, "1000", 4) = 4 [pid 526] close(3) = 0 [pid 526] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 526] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 515] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 515] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 526] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 515] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 526] <... mprotect resumed>) = 0 [pid 515] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 515] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 526] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 515] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 515] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 526] <... clone resumed>, parent_tid=[527], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 527 [pid 515] <... mmap resumed>) = 0x7f5627019000 [pid 526] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 518] <... mmap resumed>) = 0x20000000 [pid 515] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 526] <... futex resumed>) = 0 [pid 518] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 515] <... mprotect resumed>) = 0 [pid 515] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 526] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 518] <... futex resumed>) = 1 [pid 516] <... futex resumed>) = 0 [pid 516] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 515] <... clone resumed>, parent_tid=[528], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 528 [pid 516] <... futex resumed>) = 0 [pid 515] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 516] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 515] <... futex resumed>) = 0 [pid 515] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 518] madvise(0x20000000, 6291467, MADV_REMOVE [pid 519] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 ./strace-static-x86_64: Process 525 attached [pid 519] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 525] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 524] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 525] memfd_create("syzkaller", 0) = 3 [pid 525] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 527 attached [pid 527] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 527] memfd_create("syzkaller", 0) = 3 [pid 527] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 528 attached [pid 528] set_robust_list(0x7f56270399e0, 24) = 0 [pid 528] madvise(0x20000000, 6291467, MADV_REMOVE [pid 525] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 524] <... write resumed>) = 1048576 [pid 524] munmap(0x7f5626f3a000, 1048576) = 0 [pid 524] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 524] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 524] ioctl(4, LOOP_CLR_FD) = 0 [pid 525] <... write resumed>) = 1048576 [pid 524] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 524] close(4 [pid 527] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 525] munmap(0x7f5626f3a000, 1048576 [pid 524] <... close resumed>) = 0 [pid 520] <... madvise resumed>) = 0 [pid 518] <... madvise resumed>) = 0 [pid 518] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 516] <... futex resumed>) = 0 [pid 518] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 516] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] <... munmap resumed>) = 0 [pid 518] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 516] <... futex resumed>) = 0 [pid 518] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 516] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 525] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 518] <... openat resumed>) = 5 [pid 525] <... openat resumed>) = 4 [pid 518] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] ioctl(4, LOOP_SET_FD, 3 [pid 524] close(3 [pid 518] <... futex resumed>) = 1 [pid 516] <... futex resumed>) = 0 [pid 528] <... madvise resumed>) = 0 [pid 525] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 524] <... close resumed>) = 0 [pid 518] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 516] exit_group(0 [pid 528] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] ioctl(4, LOOP_CLR_FD [pid 518] <... futex resumed>) = ? [pid 516] <... exit_group resumed>) = ? [pid 528] <... futex resumed>) = 1 [pid 527] <... write resumed>) = 1048576 [pid 525] <... ioctl resumed>) = 0 [pid 524] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 520] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 518] +++ exited with 0 +++ [pid 515] <... futex resumed>) = 0 [pid 528] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 520] <... futex resumed>) = 1 [pid 515] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 527] munmap(0x7f5626f3a000, 1048576 [pid 524] <... futex resumed>) = 1 [pid 523] <... futex resumed>) = 0 [pid 520] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 515] <... futex resumed>) = 1 [pid 527] <... munmap resumed>) = 0 [pid 524] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 523] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 515] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 527] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 524] <... open resumed>) = 3 [pid 523] <... futex resumed>) = 0 [pid 516] +++ exited with 0 +++ [pid 527] <... openat resumed>) = 4 [pid 524] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 523] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 519] <... futex resumed>) = 0 [pid 517] <... futex resumed>) = 0 [pid 527] ioctl(4, LOOP_SET_FD, 3 [pid 524] <... futex resumed>) = 0 [pid 523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 527] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 524] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 523] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 527] ioctl(4, LOOP_CLR_FD [pid 524] <... open resumed>) = 4 [pid 523] <... futex resumed>) = 0 [pid 527] <... ioctl resumed>) = 0 [pid 524] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 523] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 524] <... futex resumed>) = 0 [pid 523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 519] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 517] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=516, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 524] ftruncate(4, 33587195 [pid 523] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 519] <... openat resumed>) = 5 [pid 517] <... futex resumed>) = 1 [pid 524] <... ftruncate resumed>) = 0 [pid 523] <... futex resumed>) = 0 [pid 520] <... futex resumed>) = 0 [pid 519] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 517] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 523] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 520] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 519] <... futex resumed>) = 1 [pid 515] <... futex resumed>) = 0 [pid 524] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 523] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 520] <... openat resumed>) = 5 [pid 519] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 515] exit_group(0 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 528] <... futex resumed>) = ? [pid 523] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 520] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 519] <... futex resumed>) = ? [pid 515] <... exit_group resumed>) = ? [pid 294] <... openat resumed>) = 3 [pid 528] +++ exited with 0 +++ [pid 524] <... futex resumed>) = 0 [pid 523] <... futex resumed>) = 0 [pid 520] <... futex resumed>) = 1 [pid 519] +++ exited with 0 +++ [pid 517] <... futex resumed>) = 0 [pid 527] ioctl(4, LOOP_SET_FD, 3 [pid 524] sendfile(3, 4, NULL, 4 [pid 523] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 527] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 527] close(4) = 0 [pid 520] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 517] exit_group(0 [pid 515] +++ exited with 0 +++ [pid 294] ioctl(3, LOOP_CLR_FD [pid 527] close(3 [pid 525] ioctl(4, LOOP_SET_FD, 3 [pid 520] <... futex resumed>) = ? [pid 517] <... exit_group resumed>) = ? [pid 294] <... ioctl resumed>) = 0 [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=515, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 527] <... close resumed>) = 0 [pid 525] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 520] +++ exited with 0 +++ [pid 517] +++ exited with 0 +++ [pid 294] close(3 [pid 525] close(4 [pid 294] <... close resumed>) = 0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=517, si_uid=0, si_status=0, si_utime=0, si_stime=7} --- [pid 525] <... close resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 527] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] close(3 [pid 291] <... openat resumed>) = 3 [pid 527] <... futex resumed>) = 1 [pid 526] <... futex resumed>) = 0 [pid 525] <... close resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 529 [pid 291] ioctl(3, LOOP_CLR_FD [pid 527] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 526] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] <... ioctl resumed>) = 0 [pid 527] <... open resumed>) = 3 [pid 526] <... futex resumed>) = 0 [pid 525] <... futex resumed>) = 1 [pid 524] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 522] <... futex resumed>) = 0 [pid 291] close(3 [pid 527] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 526] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 525] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 524] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 522] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 291] <... close resumed>) = 0 [pid 527] <... futex resumed>) = 0 [pid 526] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 525] <... open resumed>) = 3 [pid 524] <... futex resumed>) = 1 [pid 523] <... futex resumed>) = 0 [pid 522] <... futex resumed>) = 0 [pid 292] <... openat resumed>) = 3 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 527] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 526] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 524] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 523] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 522] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] ioctl(3, LOOP_CLR_FD [pid 527] <... open resumed>) = 4 [pid 526] <... futex resumed>) = 0 [pid 525] <... futex resumed>) = 0 [pid 523] <... futex resumed>) = 0 [pid 522] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 292] <... ioctl resumed>) = 0 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 530 [pid 527] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 526] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 525] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 523] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 522] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] close(3 [pid 527] <... futex resumed>) = 0 [pid 526] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 525] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 522] <... futex resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 527] ftruncate(4, 33587195 [pid 526] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 522] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 527] <... ftruncate resumed>) = 0 [pid 526] <... futex resumed>) = 0 [pid 525] <... open resumed>) = 4 [pid 527] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 526] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 525] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 531 [pid 527] <... futex resumed>) = 0 [pid 526] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 525] <... futex resumed>) = 1 [pid 522] <... futex resumed>) = 0 [pid 527] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 526] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 522] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 526] <... futex resumed>) = 0 [pid 525] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 522] <... futex resumed>) = 0 [pid 527] sendfile(3, 4, NULL, 4 [pid 526] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 525] ftruncate(4, 33587195 [pid 522] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 527] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 525] <... ftruncate resumed>) = 0 [pid 527] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 527] <... futex resumed>) = 1 [pid 526] <... futex resumed>) = 0 [pid 525] <... futex resumed>) = 1 [pid 522] <... futex resumed>) = 0 [pid 527] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 526] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 522] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 526] <... futex resumed>) = 0 [pid 525] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 522] <... futex resumed>) = 0 [pid 527] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 526] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 525] sendfile(3, 4, NULL, 4 [pid 522] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 531 attached ./strace-static-x86_64: Process 529 attached [pid 525] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 531] set_robust_list(0x5555573645e0, 24 [pid 529] set_robust_list(0x5555573645e0, 24 [pid 525] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 531] <... set_robust_list resumed>) = 0 [pid 529] <... set_robust_list resumed>) = 0 [pid 525] <... futex resumed>) = 1 [pid 522] <... futex resumed>) = 0 [pid 531] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 529] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 525] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 522] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 530 attached [pid 531] <... prctl resumed>) = 0 [pid 529] <... prctl resumed>) = 0 [pid 525] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 522] <... futex resumed>) = 0 [pid 531] setpgid(0, 0 [pid 530] set_robust_list(0x5555573645e0, 24 [pid 529] setpgid(0, 0 [pid 525] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 522] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 531] <... setpgid resumed>) = 0 [pid 530] <... set_robust_list resumed>) = 0 [pid 529] <... setpgid resumed>) = 0 [pid 531] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 530] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 529] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 531] write(3, "1000", 4 [pid 530] <... prctl resumed>) = 0 [pid 529] <... openat resumed>) = 3 [pid 531] <... write resumed>) = 4 [pid 531] close(3) = 0 [pid 531] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 531] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 531] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 531] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 530] setpgid(0, 0 [pid 529] write(3, "1000", 4 [pid 530] <... setpgid resumed>) = 0 [pid 529] <... write resumed>) = 4 [pid 525] <... mmap resumed>) = 0x20000000 [pid 524] <... mmap resumed>) = 0x20000000 ./strace-static-x86_64: Process 532 attached [pid 531] <... clone resumed>, parent_tid=[532], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 532 [pid 530] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 529] close(3 [pid 525] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 524] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 530] <... openat resumed>) = 3 [pid 529] <... close resumed>) = 0 [pid 525] <... futex resumed>) = 1 [pid 524] <... futex resumed>) = 1 [pid 523] <... futex resumed>) = 0 [pid 522] <... futex resumed>) = 0 [pid 531] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 530] write(3, "1000", 4 [pid 529] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 531] <... futex resumed>) = 0 [pid 524] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 523] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 522] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 531] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 530] <... write resumed>) = 4 [pid 529] <... futex resumed>) = 0 [pid 525] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 524] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 523] <... futex resumed>) = 0 [pid 522] <... futex resumed>) = 0 [pid 530] close(3 [pid 529] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 525] madvise(0x20000000, 6291467, MADV_REMOVE [pid 524] madvise(0x20000000, 6291467, MADV_REMOVE [pid 523] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 522] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 532] set_robust_list(0x7f562f35a9e0, 24 [pid 530] <... close resumed>) = 0 [pid 529] <... mmap resumed>) = 0x7f562f33a000 [pid 527] <... mmap resumed>) = 0x20000000 [pid 532] <... set_robust_list resumed>) = 0 [pid 527] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 532] memfd_create("syzkaller", 0 [pid 527] <... futex resumed>) = 1 [pid 526] <... futex resumed>) = 0 [pid 532] <... memfd_create resumed>) = 3 [pid 527] madvise(0x20000000, 6291467, MADV_REMOVE [pid 526] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 532] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 526] <... futex resumed>) = 0 [pid 532] <... mmap resumed>) = 0x7f5626f3a000 [pid 526] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 532] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 530] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 529] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 530] <... futex resumed>) = 0 [pid 529] <... mprotect resumed>) = 0 [pid 530] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 529] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 530] <... mmap resumed>) = 0x7f562f33a000 [pid 530] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 529] <... clone resumed>, parent_tid=[533], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 533 [pid 530] <... mprotect resumed>) = 0 [pid 529] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 530] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 529] <... futex resumed>) = 0 [pid 530] <... clone resumed>, parent_tid=[534], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 534 [pid 529] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 530] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 530] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 534 attached ./strace-static-x86_64: Process 533 attached [pid 532] <... write resumed>) = 1048576 [pid 524] <... madvise resumed>) = 0 [pid 533] set_robust_list(0x7f562f35a9e0, 24 [pid 534] set_robust_list(0x7f562f35a9e0, 24 [pid 525] <... madvise resumed>) = 0 [pid 533] <... set_robust_list resumed>) = 0 [pid 534] <... set_robust_list resumed>) = 0 [pid 533] memfd_create("syzkaller", 0 [pid 534] memfd_create("syzkaller", 0 [pid 525] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 527] <... madvise resumed>) = 0 [pid 532] munmap(0x7f5626f3a000, 1048576 [pid 534] <... memfd_create resumed>) = 3 [pid 533] <... memfd_create resumed>) = 3 [pid 527] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] <... futex resumed>) = 1 [pid 522] <... futex resumed>) = 0 [pid 522] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 533] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 534] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 533] <... mmap resumed>) = 0x7f5626f3a000 [pid 534] <... mmap resumed>) = 0x7f5626f3a000 [pid 534] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 532] <... munmap resumed>) = 0 [pid 527] <... futex resumed>) = 1 [pid 526] <... futex resumed>) = 0 [pid 525] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 524] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 522] <... futex resumed>) = 0 [pid 527] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 526] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 525] <... openat resumed>) = 5 [pid 532] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 522] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 524] <... futex resumed>) = 1 [pid 523] <... futex resumed>) = 0 [pid 523] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 523] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 527] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 526] <... futex resumed>) = 0 [pid 525] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 527] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 526] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 527] <... openat resumed>) = 5 [pid 525] <... futex resumed>) = 1 [pid 522] <... futex resumed>) = 0 [pid 532] <... openat resumed>) = 4 [pid 522] exit_group(0 [pid 525] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 527] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 532] ioctl(4, LOOP_SET_FD, 3 [pid 524] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 525] <... futex resumed>) = ? [pid 522] <... exit_group resumed>) = ? [pid 527] <... futex resumed>) = 1 [pid 526] <... futex resumed>) = 0 [pid 532] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 525] +++ exited with 0 +++ [pid 526] exit_group(0 [pid 522] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=522, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 526] <... exit_group resumed>) = ? [pid 534] <... write resumed>) = 1048576 [pid 534] munmap(0x7f5626f3a000, 1048576) = 0 [pid 534] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 534] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 534] ioctl(4, LOOP_CLR_FD) = 0 [pid 527] +++ exited with 0 +++ [pid 526] +++ exited with 0 +++ [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 532] ioctl(4, LOOP_CLR_FD [pid 524] <... openat resumed>) = 5 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=526, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 295] <... openat resumed>) = 3 [pid 533] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 532] <... ioctl resumed>) = 0 [pid 295] ioctl(3, LOOP_CLR_FD) = 0 [pid 534] ioctl(4, LOOP_SET_FD, 3 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 295] close(3 [pid 534] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 296] <... openat resumed>) = 3 [pid 295] <... close resumed>) = 0 [pid 296] ioctl(3, LOOP_CLR_FD [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... ioctl resumed>) = 0 [pid 296] close(3 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 535 [pid 296] <... close resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 536 [pid 524] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 523] <... futex resumed>) = 0 [pid 523] exit_group(0) = ? [pid 524] <... futex resumed>) = ? [pid 524] +++ exited with 0 +++ [pid 523] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=523, si_uid=0, si_status=0, si_utime=0, si_stime=5} --- [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 293] ioctl(3, LOOP_CLR_FD) = 0 [pid 293] close(3) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 537 ./strace-static-x86_64: Process 537 attached [pid 537] set_robust_list(0x5555573645e0, 24) = 0 [pid 537] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 537] setpgid(0, 0) = 0 [pid 537] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 532] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 536 attached [pid 537] <... openat resumed>) = 3 [pid 536] set_robust_list(0x5555573645e0, 24) = 0 [pid 536] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 537] write(3, "1000", 4) = 4 [pid 537] close(3) = 0 [pid 537] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 536] <... prctl resumed>) = 0 [pid 537] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 536] setpgid(0, 0 [pid 537] <... mmap resumed>) = 0x7f562f33a000 [pid 536] <... setpgid resumed>) = 0 [pid 536] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 537] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 536] <... openat resumed>) = 3 [pid 537] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 536] write(3, "1000", 4) = 4 [pid 536] close(3) = 0 [pid 536] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 536] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 537] <... clone resumed>, parent_tid=[538], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 538 [pid 537] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 536] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 537] <... futex resumed>) = 0 [pid 536] <... mprotect resumed>) = 0 [pid 537] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 536] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[539], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 539 [pid 536] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 536] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 535 attached [pid 535] set_robust_list(0x5555573645e0, 24) = 0 [pid 535] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 535] setpgid(0, 0) = 0 [pid 535] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 535] write(3, "1000", 4) = 4 [pid 535] close(3) = 0 [pid 535] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 535] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 535] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 535] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[540], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 540 [pid 535] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 535] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 538 attached [pid 538] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 538] memfd_create("syzkaller", 0 [pid 532] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 532] close(4) = 0 [pid 532] close(3 [pid 534] close(4 [pid 538] <... memfd_create resumed>) = 3 [pid 538] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 539 attached [pid 539] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 539] memfd_create("syzkaller", 0) = 3 [pid 539] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 532] <... close resumed>) = 0 [pid 532] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 534] <... close resumed>) = 0 [pid 532] <... futex resumed>) = 1 [pid 531] <... futex resumed>) = 0 [pid 534] close(3 [pid 531] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 532] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 531] <... futex resumed>) = 0 [pid 531] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 532] <... open resumed>) = 3 [pid 532] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 531] <... futex resumed>) = 0 [pid 531] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 531] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 532] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 532] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 531] <... futex resumed>) = 0 [pid 532] ftruncate(4, 33587195 [pid 531] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 531] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 532] <... ftruncate resumed>) = 0 [pid 532] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 531] <... futex resumed>) = 0 [pid 532] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 531] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 532] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 531] <... futex resumed>) = 0 [pid 532] sendfile(3, 4, NULL, 4 [pid 531] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 532] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 532] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 531] <... futex resumed>) = 0 [pid 532] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 531] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 531] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 532] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 532] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 538] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 539] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 538] <... write resumed>) = 1048576 [pid 538] munmap(0x7f5626f3a000, 1048576) = 0 [pid 539] <... write resumed>) = 1048576 [pid 538] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 538] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) ./strace-static-x86_64: Process 540 attached [pid 539] munmap(0x7f5626f3a000, 1048576 [pid 534] <... close resumed>) = 0 [pid 533] <... write resumed>) = 1048576 [pid 540] set_robust_list(0x7f562f35a9e0, 24 [pid 539] <... munmap resumed>) = 0 [pid 538] ioctl(4, LOOP_CLR_FD [pid 534] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 533] munmap(0x7f5626f3a000, 1048576 [pid 540] <... set_robust_list resumed>) = 0 [pid 539] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 538] <... ioctl resumed>) = 0 [pid 534] <... futex resumed>) = 1 [pid 533] <... munmap resumed>) = 0 [pid 530] <... futex resumed>) = 0 [pid 540] memfd_create("syzkaller", 0 [pid 539] <... openat resumed>) = 4 [pid 533] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 530] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 534] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 540] <... memfd_create resumed>) = 3 [pid 539] ioctl(4, LOOP_SET_FD, 3 [pid 533] <... openat resumed>) = 4 [pid 540] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 539] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 533] ioctl(4, LOOP_SET_FD, 3 [pid 540] <... mmap resumed>) = 0x7f5626f3a000 [pid 539] ioctl(4, LOOP_CLR_FD [pid 533] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 540] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 539] <... ioctl resumed>) = 0 [pid 534] <... open resumed>) = 3 [pid 533] ioctl(4, LOOP_CLR_FD [pid 532] <... mmap resumed>) = 0x20000000 [pid 530] <... futex resumed>) = 0 [pid 538] ioctl(4, LOOP_SET_FD, 3 [pid 533] <... ioctl resumed>) = 0 [pid 538] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 538] close(4 [pid 534] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 530] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 538] <... close resumed>) = 0 [pid 538] close(3 [pid 530] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 534] <... futex resumed>) = 0 [pid 530] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 538] <... close resumed>) = 0 [pid 534] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 530] <... futex resumed>) = 0 [pid 539] ioctl(4, LOOP_SET_FD, 3 [pid 538] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 533] ioctl(4, LOOP_SET_FD, 3 [pid 538] <... futex resumed>) = 1 [pid 537] <... futex resumed>) = 0 [pid 533] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 539] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 538] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 537] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 534] <... open resumed>) = 4 [pid 533] close(4 [pid 530] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 538] <... open resumed>) = 3 [pid 537] <... futex resumed>) = 0 [pid 533] <... close resumed>) = 0 [pid 538] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 537] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 533] close(3 [pid 539] close(4 [pid 538] <... futex resumed>) = 0 [pid 537] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 534] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 533] <... close resumed>) = 0 [pid 538] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 537] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 533] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 538] <... open resumed>) = 4 [pid 537] <... futex resumed>) = 0 [pid 534] <... futex resumed>) = 1 [pid 533] <... futex resumed>) = 1 [pid 539] <... close resumed>) = 0 [pid 530] <... futex resumed>) = 0 [pid 529] <... futex resumed>) = 0 [pid 539] close(3 [pid 538] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 537] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 534] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 533] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 530] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 529] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 540] <... write resumed>) = 1048576 [pid 539] <... close resumed>) = 0 [pid 538] <... futex resumed>) = 0 [pid 537] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 533] <... open resumed>) = 3 [pid 530] <... futex resumed>) = 0 [pid 529] <... futex resumed>) = 0 [pid 539] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 538] ftruncate(4, 33587195 [pid 537] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 534] ftruncate(4, 33587195 [pid 530] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 529] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 539] <... futex resumed>) = 1 [pid 538] <... ftruncate resumed>) = 0 [pid 537] <... futex resumed>) = 0 [pid 536] <... futex resumed>) = 0 [pid 533] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 539] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 538] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 537] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 536] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 534] <... ftruncate resumed>) = 0 [pid 533] <... futex resumed>) = 0 [pid 529] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 538] <... futex resumed>) = 0 [pid 537] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 536] <... futex resumed>) = 0 [pid 533] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 534] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 529] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 538] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 537] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 536] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 534] <... futex resumed>) = 1 [pid 533] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 530] <... futex resumed>) = 0 [pid 529] <... futex resumed>) = 0 [pid 539] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 538] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 537] <... futex resumed>) = 0 [pid 534] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 533] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 531] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 530] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 529] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 539] <... open resumed>) = 3 [pid 538] sendfile(3, 4, NULL, 4 [pid 537] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 533] <... open resumed>) = 4 [pid 531] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0} [pid 530] <... futex resumed>) = 0 [pid 539] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 538] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 534] sendfile(3, 4, NULL, 4 [pid 533] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 531] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 530] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 539] <... futex resumed>) = 1 [pid 538] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 536] <... futex resumed>) = 0 [pid 534] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 533] <... futex resumed>) = 1 [pid 531] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 529] <... futex resumed>) = 0 [pid 539] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 538] <... futex resumed>) = 1 [pid 537] <... futex resumed>) = 0 [pid 536] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 534] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 533] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 531] <... futex resumed>) = 0 [pid 529] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 538] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 537] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 536] <... futex resumed>) = 0 [pid 534] <... futex resumed>) = 1 [pid 533] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 531] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 530] <... futex resumed>) = 0 [pid 529] <... futex resumed>) = 0 [pid 539] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 538] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 537] <... futex resumed>) = 0 [pid 536] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 534] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 533] ftruncate(4, 33587195 [pid 531] <... mmap resumed>) = 0x7f5627019000 [pid 530] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 529] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 539] <... open resumed>) = 4 [pid 538] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 537] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 533] <... ftruncate resumed>) = 0 [pid 531] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 540] munmap(0x7f5626f3a000, 1048576 [pid 539] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 538] <... mmap resumed>) = 0x20000000 [pid 534] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 533] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 531] <... mprotect resumed>) = 0 [pid 530] <... futex resumed>) = 0 [pid 540] <... munmap resumed>) = 0 [pid 538] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 533] <... futex resumed>) = 1 [pid 531] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 529] <... futex resumed>) = 0 [pid 540] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 538] <... futex resumed>) = 1 [pid 537] <... futex resumed>) = 0 [pid 533] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 529] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 540] <... openat resumed>) = 4 [pid 538] madvise(0x20000000, 6291467, MADV_REMOVE [pid 537] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 533] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 531] <... clone resumed>, parent_tid=[541], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 541 [pid 529] <... futex resumed>) = 0 [pid 540] ioctl(4, LOOP_SET_FD, 3 [pid 539] <... futex resumed>) = 1 [pid 537] <... futex resumed>) = 0 [pid 536] <... futex resumed>) = 0 [pid 534] <... mmap resumed>) = 0x20000000 [pid 533] sendfile(3, 4, NULL, 4 [pid 532] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 531] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 530] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 529] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 540] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 539] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 537] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 536] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 534] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 531] <... futex resumed>) = 0 [pid 540] ioctl(4, LOOP_CLR_FD [pid 539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 536] <... futex resumed>) = 0 [pid 531] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 540] <... ioctl resumed>) = 0 [pid 539] ftruncate(4, 33587195 [pid 536] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 534] <... futex resumed>) = 1 [pid 532] <... futex resumed>) = 0 [pid 530] <... futex resumed>) = 0 [pid 534] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 532] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 530] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 530] <... futex resumed>) = 0 [pid 530] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 534] madvise(0x20000000, 6291467, MADV_REMOVE./strace-static-x86_64: Process 541 attached [pid 541] set_robust_list(0x7f56270399e0, 24) = 0 [pid 541] madvise(0x20000000, 6291467, MADV_REMOVE [pid 540] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 540] close(4) = 0 [pid 540] close(3) = 0 [pid 540] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 535] <... futex resumed>) = 0 [pid 535] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 535] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 540] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 540] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 535] <... futex resumed>) = 0 [pid 535] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 535] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 540] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 540] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 535] <... futex resumed>) = 0 [pid 535] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 535] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 540] ftruncate(4, 33587195 [pid 541] <... madvise resumed>) = 0 [pid 539] <... ftruncate resumed>) = 0 [pid 540] <... ftruncate resumed>) = 0 [pid 539] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 534] <... madvise resumed>) = 0 [pid 541] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 540] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 541] <... futex resumed>) = 1 [pid 540] <... futex resumed>) = 1 [pid 535] <... futex resumed>) = 0 [pid 531] <... futex resumed>) = 0 [pid 541] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 540] sendfile(3, 4, NULL, 4 [pid 539] <... futex resumed>) = 1 [pid 536] <... futex resumed>) = 0 [pid 535] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 534] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 533] <... sendfile resumed>) = 4 [pid 531] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 539] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 536] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 535] <... futex resumed>) = 0 [pid 534] <... futex resumed>) = 1 [pid 532] <... futex resumed>) = 0 [pid 531] <... futex resumed>) = 1 [pid 530] <... futex resumed>) = 0 [pid 535] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 533] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 531] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 533] <... futex resumed>) = 1 [pid 529] <... futex resumed>) = 0 [pid 533] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 529] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 538] <... madvise resumed>) = 0 [pid 536] <... futex resumed>) = 0 [pid 534] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 532] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 530] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 529] <... futex resumed>) = 0 [pid 539] sendfile(3, 4, NULL, 4 [pid 536] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 534] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 532] <... openat resumed>) = 5 [pid 530] <... futex resumed>) = 0 [pid 534] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 532] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 530] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 534] <... openat resumed>) = 5 [pid 532] <... futex resumed>) = 1 [pid 531] <... futex resumed>) = 0 [pid 529] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 531] exit_group(0) = ? [pid 541] <... futex resumed>) = ? [pid 541] +++ exited with 0 +++ [pid 534] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 540] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 539] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 534] <... futex resumed>) = 1 [pid 532] +++ exited with 0 +++ [pid 531] +++ exited with 0 +++ [pid 530] <... futex resumed>) = 0 [pid 540] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 539] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 534] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 530] exit_group(0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=531, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 540] <... futex resumed>) = 1 [pid 539] <... futex resumed>) = 1 [pid 536] <... futex resumed>) = 0 [pid 535] <... futex resumed>) = 0 [pid 534] <... futex resumed>) = ? [pid 530] <... exit_group resumed>) = ? [pid 540] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 539] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 536] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 535] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 534] +++ exited with 0 +++ [pid 530] +++ exited with 0 +++ [pid 540] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 539] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 536] <... futex resumed>) = 0 [pid 535] <... futex resumed>) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=530, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 540] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 539] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 536] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 535] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... openat resumed>) = 3 [pid 538] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 538] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 537] <... futex resumed>) = 0 [pid 292] ioctl(3, LOOP_CLR_FD [pid 537] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 292] <... ioctl resumed>) = 0 [pid 537] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] close(3 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 538] <... futex resumed>) = 0 [pid 538] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 292] <... close resumed>) = 0 [pid 291] <... openat resumed>) = 3 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 542 attached ) = 0 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 542 [pid 291] close(3 [pid 538] <... openat resumed>) = 5 [pid 291] <... close resumed>) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 538] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 538] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 537] <... futex resumed>) = 0 [pid 537] exit_group(0 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 543 [pid 540] <... mmap resumed>) = 0x20000000 [pid 537] <... exit_group resumed>) = ? [pid 538] <... futex resumed>) = ? [pid 538] +++ exited with 0 +++ [pid 537] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=537, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 293] ioctl(3, LOOP_CLR_FD) = 0 [pid 293] close(3) = 0 [pid 539] <... mmap resumed>) = 0x20000000 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 539] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 536] <... futex resumed>) = 0 [pid 536] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 544 [pid 542] set_robust_list(0x5555573645e0, 24 [pid 539] madvise(0x20000000, 6291467, MADV_REMOVE [pid 536] <... futex resumed>) = 0 [pid 536] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 542] <... set_robust_list resumed>) = 0 [pid 542] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 540] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 542] <... prctl resumed>) = 0 [pid 542] setpgid(0, 0 [pid 540] <... futex resumed>) = 1 [pid 535] <... futex resumed>) = 0 [pid 535] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 535] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 542] <... setpgid resumed>) = 0 [pid 542] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 542] write(3, "1000", 4 [pid 540] madvise(0x20000000, 6291467, MADV_REMOVE [pid 542] <... write resumed>) = 4 [pid 542] close(3) = 0 [pid 542] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 542] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 542] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 ./strace-static-x86_64: Process 543 attached [pid 543] set_robust_list(0x5555573645e0, 24) = 0 [pid 542] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[545], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 545 [pid 542] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 533] <... mmap resumed>) = 0x20000000 [pid 542] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 543] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 533] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 529] <... futex resumed>) = 0 [pid 529] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 533] madvise(0x20000000, 6291467, MADV_REMOVE [pid 529] <... futex resumed>) = 0 [pid 529] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 543] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 545 attached [pid 545] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 543] setpgid(0, 0 [pid 545] memfd_create("syzkaller", 0 [pid 543] <... setpgid resumed>) = 0 [pid 545] <... memfd_create resumed>) = 3 [pid 545] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 543] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 545] <... mmap resumed>) = 0x7f5626f3a000 [pid 543] <... openat resumed>) = 3 [pid 543] write(3, "1000", 4) = 4 [pid 543] close(3) = 0 [pid 543] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 544 attached ) = 0 [pid 543] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 544] set_robust_list(0x5555573645e0, 24 [pid 543] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 544] <... set_robust_list resumed>) = 0 [pid 543] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 544] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 544] setpgid(0, 0 [pid 545] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 544] <... setpgid resumed>) = 0 [pid 544] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 543] <... clone resumed>, parent_tid=[546], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 546 [pid 544] <... openat resumed>) = 3 [pid 543] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 545] <... write resumed>) = 1048576 [pid 544] write(3, "1000", 4 [pid 543] <... futex resumed>) = 0 [pid 544] <... write resumed>) = 4 [pid 543] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 544] close(3) = 0 [pid 544] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 540] <... madvise resumed>) = 0 [pid 533] <... madvise resumed>) = 0 [pid 545] munmap(0x7f5626f3a000, 1048576 [pid 540] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 539] <... madvise resumed>) = 0 [pid 540] <... futex resumed>) = 1 [pid 535] <... futex resumed>) = 0 [pid 533] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 540] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 539] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 540] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 535] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 533] <... futex resumed>) = 1 [pid 529] <... futex resumed>) = 0 [pid 536] <... futex resumed>) = 0 [pid 539] <... futex resumed>) = 1 [pid 544] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 540] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 536] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 529] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 533] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 540] <... openat resumed>) = 5 [pid 536] <... futex resumed>) = 0 [pid 535] <... futex resumed>) = 0 [pid 529] <... futex resumed>) = 0 [pid 533] <... openat resumed>) = 5 [pid 540] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 539] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 536] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 535] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 533] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 529] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 546 attached [pid 540] <... futex resumed>) = 0 [pid 539] <... openat resumed>) = 5 [pid 535] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 545] <... munmap resumed>) = 0 [pid 533] <... futex resumed>) = 0 [pid 529] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 540] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 539] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 535] exit_group(0 [pid 533] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 545] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 529] exit_group(0 [pid 535] <... exit_group resumed>) = ? [pid 540] <... futex resumed>) = ? [pid 539] <... futex resumed>) = 1 [pid 536] <... futex resumed>) = 0 [pid 533] <... futex resumed>) = ? [pid 529] <... exit_group resumed>) = ? [pid 544] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 536] exit_group(0 [pid 533] +++ exited with 0 +++ [pid 544] <... mprotect resumed>) = 0 [pid 544] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[547], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 547 [pid 544] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 544] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 547 attached [pid 547] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 547] memfd_create("syzkaller", 0) = 3 [pid 547] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 540] +++ exited with 0 +++ [pid 535] +++ exited with 0 +++ [pid 536] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=535, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 529] +++ exited with 0 +++ [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=529, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 295] <... openat resumed>) = 3 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 295] ioctl(3, LOOP_CLR_FD) = 0 [pid 294] <... openat resumed>) = 3 [pid 295] close(3 [pid 294] ioctl(3, LOOP_CLR_FD [pid 546] set_robust_list(0x7f562f35a9e0, 24 [pid 545] <... openat resumed>) = 4 [pid 539] +++ exited with 0 +++ [pid 536] +++ exited with 0 +++ [pid 295] <... close resumed>) = 0 [pid 294] <... ioctl resumed>) = 0 [pid 545] ioctl(4, LOOP_SET_FD, 3 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=536, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] close(3 [pid 547] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 546] <... set_robust_list resumed>) = 0 [pid 545] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 294] <... close resumed>) = 0 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 548 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 545] ioctl(4, LOOP_CLR_FD [pid 296] <... openat resumed>) = 3 [pid 296] ioctl(3, LOOP_CLR_FD [pid 545] <... ioctl resumed>) = 0 [pid 296] <... ioctl resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 549 [pid 296] close(3) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 550 [pid 546] memfd_create("syzkaller", 0 [pid 545] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 546] <... memfd_create resumed>) = 3 [pid 545] close(4) = 0 [pid 546] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 545] close(3 [pid 546] <... mmap resumed>) = 0x7f5626f3a000 [pid 545] <... close resumed>) = 0 [pid 546] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 545] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 542] <... futex resumed>) = 0 [pid 542] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 545] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 542] <... futex resumed>) = 0 [pid 542] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 545] <... open resumed>) = 3 [pid 545] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 542] <... futex resumed>) = 0 [pid 545] <... futex resumed>) = 1 [pid 542] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 542] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 545] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 545] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 542] <... futex resumed>) = 0 [pid 545] <... futex resumed>) = 1 [pid 542] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 545] ftruncate(4, 33587195 [pid 542] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 545] <... ftruncate resumed>) = 0 [pid 547] <... write resumed>) = 1048576 [pid 545] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 542] <... futex resumed>) = 0 [pid 542] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 545] sendfile(3, 4, NULL, 4 [pid 542] <... futex resumed>) = 0 [pid 542] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 545] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 545] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 542] <... futex resumed>) = 0 [pid 545] <... futex resumed>) = 1 [pid 542] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 545] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 542] <... futex resumed>) = 0 ./strace-static-x86_64: Process 548 attached [pid 542] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 550 attached ./strace-static-x86_64: Process 549 attached [pid 550] set_robust_list(0x5555573645e0, 24 [pid 549] set_robust_list(0x5555573645e0, 24 [pid 548] set_robust_list(0x5555573645e0, 24 [pid 550] <... set_robust_list resumed>) = 0 [pid 549] <... set_robust_list resumed>) = 0 [pid 550] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 549] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 548] <... set_robust_list resumed>) = 0 [pid 548] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 550] <... prctl resumed>) = 0 [pid 549] <... prctl resumed>) = 0 [pid 548] <... prctl resumed>) = 0 [pid 550] setpgid(0, 0 [pid 549] setpgid(0, 0 [pid 548] setpgid(0, 0 [pid 550] <... setpgid resumed>) = 0 [pid 549] <... setpgid resumed>) = 0 [pid 548] <... setpgid resumed>) = 0 [pid 550] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 549] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 548] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 550] <... openat resumed>) = 3 [pid 549] <... openat resumed>) = 3 [pid 548] <... openat resumed>) = 3 [pid 550] write(3, "1000", 4 [pid 549] write(3, "1000", 4 [pid 548] write(3, "1000", 4 [pid 550] <... write resumed>) = 4 [pid 549] <... write resumed>) = 4 [pid 548] <... write resumed>) = 4 [pid 550] close(3 [pid 549] close(3 [pid 548] close(3 [pid 550] <... close resumed>) = 0 [pid 549] <... close resumed>) = 0 [pid 548] <... close resumed>) = 0 [pid 550] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 549] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 548] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 550] <... futex resumed>) = 0 [pid 549] <... futex resumed>) = 0 [pid 548] <... futex resumed>) = 0 [pid 550] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 549] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 548] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 550] <... mmap resumed>) = 0x7f562f33a000 [pid 549] <... mmap resumed>) = 0x7f562f33a000 [pid 548] <... mmap resumed>) = 0x7f562f33a000 [pid 550] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 549] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 548] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 550] <... mprotect resumed>) = 0 [pid 549] <... mprotect resumed>) = 0 [pid 548] <... mprotect resumed>) = 0 [pid 550] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 549] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 548] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 550] <... clone resumed>, parent_tid=[553], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 553 [pid 549] <... clone resumed>, parent_tid=[551], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 551 [pid 548] <... clone resumed>, parent_tid=[552], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 552 [pid 550] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 549] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 548] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 552 attached [pid 550] <... futex resumed>) = 0 [pid 549] <... futex resumed>) = 0 [pid 548] <... futex resumed>) = 0 [pid 547] munmap(0x7f5626f3a000, 1048576 [pid 546] <... write resumed>) = 1048576 [pid 552] set_robust_list(0x7f562f35a9e0, 24 [pid 550] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 549] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 548] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 551 attached ./strace-static-x86_64: Process 553 attached [pid 553] set_robust_list(0x7f562f35a9e0, 24 [pid 551] set_robust_list(0x7f562f35a9e0, 24 [pid 553] <... set_robust_list resumed>) = 0 [pid 551] <... set_robust_list resumed>) = 0 [pid 553] memfd_create("syzkaller", 0 [pid 547] <... munmap resumed>) = 0 [pid 553] <... memfd_create resumed>) = 3 [pid 552] <... set_robust_list resumed>) = 0 [pid 551] memfd_create("syzkaller", 0 [pid 546] munmap(0x7f5626f3a000, 1048576 [pid 545] <... mmap resumed>) = 0x20000000 [pid 551] <... memfd_create resumed>) = 3 [pid 551] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 552] memfd_create("syzkaller", 0 [pid 547] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 553] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 551] <... mmap resumed>) = 0x7f5626f3a000 [pid 546] <... munmap resumed>) = 0 [pid 547] <... openat resumed>) = 4 [pid 553] <... mmap resumed>) = 0x7f5626f3a000 [pid 552] <... memfd_create resumed>) = 3 [pid 547] ioctl(4, LOOP_SET_FD, 3 [pid 546] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 553] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 552] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 547] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 546] <... openat resumed>) = 4 [pid 545] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 552] <... mmap resumed>) = 0x7f5626f3a000 [pid 547] ioctl(4, LOOP_CLR_FD [pid 546] ioctl(4, LOOP_SET_FD, 3 [pid 547] <... ioctl resumed>) = 0 [pid 546] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 546] ioctl(4, LOOP_CLR_FD [pid 553] <... write resumed>) = 1048576 [pid 553] munmap(0x7f5626f3a000, 1048576) = 0 [pid 553] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 553] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 553] ioctl(4, LOOP_CLR_FD) = 0 [pid 551] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 552] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 546] <... ioctl resumed>) = 0 [pid 547] ioctl(4, LOOP_SET_FD, 3 [pid 545] <... futex resumed>) = 1 [pid 542] <... futex resumed>) = 0 [pid 542] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 547] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 542] <... futex resumed>) = 0 [pid 547] close(4 [pid 545] madvise(0x20000000, 6291467, MADV_REMOVE [pid 553] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 553] close(4 [pid 547] <... close resumed>) = 0 [pid 542] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 546] ioctl(4, LOOP_SET_FD, 3 [pid 547] close(3 [pid 546] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 547] <... close resumed>) = 0 [pid 546] close(4) = 0 [pid 547] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 546] close(3) = 0 [pid 547] <... futex resumed>) = 1 [pid 544] <... futex resumed>) = 0 [pid 544] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 544] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 547] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 546] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 547] <... open resumed>) = 3 [pid 547] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 546] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 547] <... futex resumed>) = 1 [pid 544] <... futex resumed>) = 0 [pid 543] <... futex resumed>) = 0 [pid 544] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 543] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 544] <... futex resumed>) = 0 [pid 543] <... futex resumed>) = 1 [pid 544] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 543] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 546] <... futex resumed>) = 0 [pid 547] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 546] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 547] <... open resumed>) = 4 [pid 546] <... open resumed>) = 3 [pid 547] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 546] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 547] <... futex resumed>) = 1 [pid 547] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 546] <... futex resumed>) = 1 [pid 544] <... futex resumed>) = 0 [pid 543] <... futex resumed>) = 0 [pid 547] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 546] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 544] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 543] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 544] <... futex resumed>) = 0 [pid 543] <... futex resumed>) = 0 [pid 547] ftruncate(4, 33587195 [pid 546] <... open resumed>) = 4 [pid 544] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 543] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 546] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 543] <... futex resumed>) = 0 [pid 543] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 543] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 546] ftruncate(4, 33587195 [pid 553] <... close resumed>) = 0 [pid 553] close(3 [pid 552] <... write resumed>) = 1048576 [pid 552] munmap(0x7f5626f3a000, 1048576 [pid 553] <... close resumed>) = 0 [pid 552] <... munmap resumed>) = 0 [pid 552] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 551] <... write resumed>) = 1048576 [pid 553] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 550] <... futex resumed>) = 0 [pid 550] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 550] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 553] <... futex resumed>) = 1 [pid 553] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 553] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 550] <... futex resumed>) = 0 [pid 550] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 550] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 552] ioctl(4, LOOP_SET_FD, 3 [pid 553] <... futex resumed>) = 1 [pid 553] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 552] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 553] <... open resumed>) = 4 [pid 553] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 550] <... futex resumed>) = 0 [pid 550] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 552] ioctl(4, LOOP_CLR_FD [pid 550] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 553] <... futex resumed>) = 1 [pid 553] ftruncate(4, 33587195 [pid 551] munmap(0x7f5626f3a000, 1048576 [pid 552] <... ioctl resumed>) = 0 [pid 551] <... munmap resumed>) = 0 [pid 551] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 551] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 551] ioctl(4, LOOP_CLR_FD) = 0 [pid 552] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 552] close(4) = 0 [pid 552] close(3) = 0 [pid 552] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 548] <... futex resumed>) = 0 [pid 548] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 548] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 552] <... futex resumed>) = 1 [pid 552] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 552] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 548] <... futex resumed>) = 0 [pid 548] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 548] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 552] <... futex resumed>) = 1 [pid 552] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 552] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 548] <... futex resumed>) = 0 [pid 548] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 552] <... futex resumed>) = 1 [pid 548] <... futex resumed>) = 0 [pid 552] ftruncate(4, 33587195 [pid 548] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 551] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 551] close(4) = 0 [pid 551] close(3) = 0 [pid 551] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 549] <... futex resumed>) = 0 [pid 549] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 549] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 551] <... futex resumed>) = 1 [pid 551] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 551] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 549] <... futex resumed>) = 0 [pid 549] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 549] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 551] <... futex resumed>) = 1 [pid 551] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 551] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 549] <... futex resumed>) = 0 [pid 549] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 549] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 551] <... futex resumed>) = 1 [pid 551] ftruncate(4, 33587195 [pid 553] <... ftruncate resumed>) = 0 [pid 552] <... ftruncate resumed>) = 0 [pid 547] <... ftruncate resumed>) = 0 [pid 546] <... ftruncate resumed>) = 0 [pid 545] <... madvise resumed>) = 0 [pid 553] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 552] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 551] <... ftruncate resumed>) = 0 [pid 547] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 546] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 553] <... futex resumed>) = 1 [pid 552] <... futex resumed>) = 1 [pid 550] <... futex resumed>) = 0 [pid 548] <... futex resumed>) = 0 [pid 547] <... futex resumed>) = 1 [pid 546] <... futex resumed>) = 1 [pid 544] <... futex resumed>) = 0 [pid 543] <... futex resumed>) = 0 [pid 553] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 552] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 550] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 548] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 547] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 546] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 544] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 543] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 553] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 552] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 551] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 550] <... futex resumed>) = 0 [pid 548] <... futex resumed>) = 0 [pid 547] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 546] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 544] <... futex resumed>) = 0 [pid 543] <... futex resumed>) = 0 [pid 553] sendfile(3, 4, NULL, 4 [pid 552] sendfile(3, 4, NULL, 4 [pid 551] <... futex resumed>) = 1 [pid 550] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 549] <... futex resumed>) = 0 [pid 548] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 547] sendfile(3, 4, NULL, 4 [pid 546] sendfile(3, 4, NULL, 4 [pid 544] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 543] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 553] <... sendfile resumed>) = 4 [pid 551] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 549] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 545] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 553] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 552] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 549] <... futex resumed>) = 0 [pid 547] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 546] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 553] <... futex resumed>) = 1 [pid 552] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 551] sendfile(3, 4, NULL, 4 [pid 550] <... futex resumed>) = 0 [pid 549] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 547] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 546] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 553] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 552] <... futex resumed>) = 1 [pid 551] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 550] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 548] <... futex resumed>) = 0 [pid 547] <... futex resumed>) = 1 [pid 546] <... futex resumed>) = 1 [pid 544] <... futex resumed>) = 0 [pid 543] <... futex resumed>) = 0 [pid 542] <... futex resumed>) = 0 [pid 553] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 552] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 551] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 550] <... futex resumed>) = 0 [pid 548] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 547] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 546] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 544] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 543] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 542] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 553] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 552] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 551] <... futex resumed>) = 1 [pid 550] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 549] <... futex resumed>) = 0 [pid 548] <... futex resumed>) = 0 [pid 547] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 546] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 545] <... futex resumed>) = 1 [pid 544] <... futex resumed>) = 0 [pid 543] <... futex resumed>) = 0 [pid 542] <... futex resumed>) = 0 [pid 552] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 551] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 549] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 548] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 547] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 546] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 545] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 544] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 543] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 542] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 549] <... futex resumed>) = 0 [pid 545] <... openat resumed>) = 5 [pid 551] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 549] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 545] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 542] <... futex resumed>) = 0 [pid 545] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 542] exit_group(0 [pid 545] <... futex resumed>) = ? [pid 542] <... exit_group resumed>) = ? [pid 545] +++ exited with 0 +++ [pid 542] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=542, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 292] ioctl(3, LOOP_CLR_FD) = 0 [pid 292] close(3) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 554 ./strace-static-x86_64: Process 554 attached [pid 554] set_robust_list(0x5555573645e0, 24) = 0 [pid 554] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 554] setpgid(0, 0) = 0 [pid 554] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 554] write(3, "1000", 4) = 4 [pid 554] close(3) = 0 [pid 554] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 554] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 554] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 554] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[555], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 555 [pid 554] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 554] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 555 attached [pid 555] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 546] <... mmap resumed>) = 0x20000000 [pid 555] memfd_create("syzkaller", 0) = 3 [pid 555] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 551] <... mmap resumed>) = 0x20000000 [pid 552] <... mmap resumed>) = 0x20000000 [pid 546] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 555] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 553] <... mmap resumed>) = 0x20000000 [pid 543] <... futex resumed>) = 0 [pid 546] <... futex resumed>) = 1 [pid 551] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 552] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 553] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 551] <... futex resumed>) = 1 [pid 552] <... futex resumed>) = 1 [pid 549] <... futex resumed>) = 0 [pid 548] <... futex resumed>) = 0 [pid 546] madvise(0x20000000, 6291467, MADV_REMOVE [pid 543] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 553] <... futex resumed>) = 1 [pid 552] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 551] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 550] <... futex resumed>) = 0 [pid 549] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 548] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 553] madvise(0x20000000, 6291467, MADV_REMOVE [pid 552] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 551] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 550] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 549] <... futex resumed>) = 0 [pid 548] <... futex resumed>) = 0 [pid 543] <... futex resumed>) = 0 [pid 552] madvise(0x20000000, 6291467, MADV_REMOVE [pid 551] madvise(0x20000000, 6291467, MADV_REMOVE [pid 550] <... futex resumed>) = 0 [pid 549] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 548] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 543] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 550] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 555] <... write resumed>) = 1048576 [pid 555] munmap(0x7f5626f3a000, 1048576) = 0 [pid 555] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 555] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 555] ioctl(4, LOOP_CLR_FD) = 0 [pid 547] <... mmap resumed>) = 0x20000000 [pid 555] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 555] close(4) = 0 [pid 555] close(3 [pid 547] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 544] <... futex resumed>) = 0 [pid 544] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 544] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 547] madvise(0x20000000, 6291467, MADV_REMOVE [pid 555] <... close resumed>) = 0 [pid 555] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 554] <... futex resumed>) = 0 [pid 554] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 554] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 555] <... futex resumed>) = 1 [pid 555] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 555] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 554] <... futex resumed>) = 0 [pid 554] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 554] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 555] <... futex resumed>) = 1 [pid 555] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 555] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 551] <... madvise resumed>) = 0 [pid 554] <... futex resumed>) = 0 [pid 554] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 552] <... madvise resumed>) = 0 [pid 554] <... futex resumed>) = 0 [pid 552] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 551] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 546] <... madvise resumed>) = 0 [pid 554] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 552] <... futex resumed>) = 1 [pid 551] <... futex resumed>) = 1 [pid 549] <... futex resumed>) = 0 [pid 548] <... futex resumed>) = 0 [pid 553] <... madvise resumed>) = 0 [pid 547] <... madvise resumed>) = 0 [pid 546] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 555] <... futex resumed>) = 1 [pid 549] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 548] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 555] ftruncate(4, 33587195 [pid 553] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 552] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 551] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 549] <... futex resumed>) = 0 [pid 548] <... futex resumed>) = 0 [pid 547] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 546] <... futex resumed>) = 1 [pid 543] <... futex resumed>) = 0 [pid 555] <... ftruncate resumed>) = 0 [pid 553] <... futex resumed>) = 1 [pid 552] <... openat resumed>) = 5 [pid 551] <... openat resumed>) = 5 [pid 550] <... futex resumed>) = 0 [pid 549] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 548] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 547] <... futex resumed>) = 1 [pid 546] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 544] <... futex resumed>) = 0 [pid 543] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 555] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 553] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 552] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 551] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 550] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 549] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 548] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 546] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 544] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 543] <... futex resumed>) = 0 [pid 552] <... futex resumed>) = 0 [pid 551] <... futex resumed>) = 0 [pid 550] <... futex resumed>) = 0 [pid 549] exit_group(0 [pid 543] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 550] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 548] exit_group(0 [pid 544] <... futex resumed>) = 0 [pid 546] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 549] <... exit_group resumed>) = ? [pid 548] <... exit_group resumed>) = ? [pid 544] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 551] +++ exited with 0 +++ [pid 546] <... openat resumed>) = 5 [pid 547] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5 [pid 547] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 547] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 554] <... futex resumed>) = 0 [pid 554] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 554] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 555] <... futex resumed>) = 1 [pid 555] sendfile(3, 4, NULL, 4 [pid 553] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 553] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5 [pid 553] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 553] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 550] <... futex resumed>) = 0 [pid 549] +++ exited with 0 +++ [pid 546] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 544] <... futex resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=549, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3 [pid 294] ioctl(3, LOOP_CLR_FD) = 0 [pid 294] close(3 [pid 552] +++ exited with 0 +++ [pid 550] exit_group(0 [pid 548] +++ exited with 0 +++ [pid 546] <... futex resumed>) = 1 [pid 544] exit_group(0 [pid 543] <... futex resumed>) = 0 [pid 294] <... close resumed>) = 0 [pid 550] <... exit_group resumed>) = ? [pid 546] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 544] <... exit_group resumed>) = ? [pid 543] exit_group(0 [pid 546] <... futex resumed>) = ? [pid 543] <... exit_group resumed>) = ? [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=548, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 546] +++ exited with 0 +++ [pid 543] +++ exited with 0 +++ [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... openat resumed>) = 3 [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=543, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] ioctl(3, LOOP_CLR_FD [pid 291] restart_syscall(<... resuming interrupted clone ...> [pid 295] <... ioctl resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 556 [pid 291] <... restart_syscall resumed>) = 0 [pid 295] close(3) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 557 [pid 291] ioctl(3, LOOP_CLR_FD) = 0 [pid 291] close(3) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 558 [pid 547] <... futex resumed>) = ? ./strace-static-x86_64: Process 556 attached [pid 556] set_robust_list(0x5555573645e0, 24) = 0 [pid 556] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 556] setpgid(0, 0) = 0 [pid 556] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 556] write(3, "1000", 4) = 4 [pid 556] close(3) = 0 [pid 555] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 553] <... futex resumed>) = ? [pid 555] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 554] <... futex resumed>) = 0 [pid 555] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 554] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 554] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 556] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 558 attached ) = 0 [pid 558] set_robust_list(0x5555573645e0, 24 [pid 556] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 558] <... set_robust_list resumed>) = 0 [pid 556] <... mmap resumed>) = 0x7f562f33a000 [pid 558] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 556] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 558] <... prctl resumed>) = 0 [pid 556] <... mprotect resumed>) = 0 [pid 547] +++ exited with 0 +++ [pid 544] +++ exited with 0 +++ ./strace-static-x86_64: Process 557 attached [pid 558] setpgid(0, 0 [pid 556] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=544, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 558] <... setpgid resumed>) = 0 [pid 557] set_robust_list(0x5555573645e0, 24 [pid 558] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 557] <... set_robust_list resumed>) = 0 [pid 556] <... clone resumed>, parent_tid=[559], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 559 [pid 558] <... openat resumed>) = 3 [pid 557] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 556] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 558] write(3, "1000", 4 [pid 557] <... prctl resumed>) = 0 [pid 556] <... futex resumed>) = 0 [pid 293] <... openat resumed>) = 3 [pid 558] <... write resumed>) = 4 [pid 557] setpgid(0, 0 [pid 556] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 293] ioctl(3, LOOP_CLR_FD [pid 558] close(3 [pid 557] <... setpgid resumed>) = 0 [pid 293] <... ioctl resumed>) = 0 [pid 558] <... close resumed>) = 0 [pid 557] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 553] +++ exited with 0 +++ [pid 550] +++ exited with 0 +++ [pid 293] close(3 [pid 558] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 557] <... openat resumed>) = 3 [pid 293] <... close resumed>) = 0 [pid 558] <... futex resumed>) = 0 [pid 557] write(3, "1000", 4 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=550, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 558] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 557] <... write resumed>) = 4 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 558] <... mmap resumed>) = 0x7f562f33a000 [pid 557] close(3 [pid 296] <... openat resumed>) = 3 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 560 [pid 558] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 557] <... close resumed>) = 0 [pid 296] ioctl(3, LOOP_CLR_FD [pid 558] <... mprotect resumed>) = 0 [pid 557] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... ioctl resumed>) = 0 [pid 558] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 557] <... futex resumed>) = 0 [pid 296] close(3 [pid 557] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 296] <... close resumed>) = 0 [pid 558] <... clone resumed>, parent_tid=[561], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 561 [pid 558] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 557] <... mmap resumed>) = 0x7f562f33a000 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 559 attached [pid 558] <... futex resumed>) = 0 [pid 557] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 559] set_robust_list(0x7f562f35a9e0, 24 [pid 558] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 557] <... mprotect resumed>) = 0 [pid 557] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 562 [pid 559] <... set_robust_list resumed>) = 0 [pid 557] <... clone resumed>, parent_tid=[563], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 563 [pid 559] memfd_create("syzkaller", 0 [pid 557] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 559] <... memfd_create resumed>) = 3 [pid 557] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 561 attached [pid 561] set_robust_list(0x7f562f35a9e0, 24./strace-static-x86_64: Process 563 attached [pid 559] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 561] <... set_robust_list resumed>) = 0 [pid 563] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 563] memfd_create("syzkaller", 0 [pid 561] memfd_create("syzkaller", 0) = 3 [pid 563] <... memfd_create resumed>) = 3 [pid 561] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 563] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0./strace-static-x86_64: Process 560 attached [pid 560] set_robust_list(0x5555573645e0, 24 [pid 561] <... mmap resumed>) = 0x7f5626f3a000 [pid 563] <... mmap resumed>) = 0x7f5626f3a000 [pid 560] <... set_robust_list resumed>) = 0 [pid 560] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 560] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 562 attached [pid 560] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 562] set_robust_list(0x5555573645e0, 24 [pid 560] write(3, "1000", 4 [pid 562] <... set_robust_list resumed>) = 0 [pid 560] <... write resumed>) = 4 [pid 559] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 562] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 560] close(3 [pid 562] <... prctl resumed>) = 0 [pid 560] <... close resumed>) = 0 [pid 562] setpgid(0, 0 [pid 560] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 562] <... setpgid resumed>) = 0 [pid 560] <... futex resumed>) = 0 [pid 562] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 560] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 562] <... openat resumed>) = 3 [pid 562] write(3, "1000", 4 [pid 560] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 562] <... write resumed>) = 4 [pid 560] <... mprotect resumed>) = 0 [pid 562] close(3 [pid 560] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 562] <... close resumed>) = 0 [pid 563] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 562] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 560] <... clone resumed>, parent_tid=[564], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 564 [pid 559] <... write resumed>) = 1048576 [pid 562] <... futex resumed>) = 0 [pid 560] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 559] munmap(0x7f5626f3a000, 1048576 [pid 562] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 560] <... futex resumed>) = 0 [pid 562] <... mmap resumed>) = 0x7f562f33a000 [pid 560] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 559] <... munmap resumed>) = 0 [pid 562] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 559] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 562] <... mprotect resumed>) = 0 [pid 559] <... openat resumed>) = 4 [pid 562] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 559] ioctl(4, LOOP_SET_FD, 3./strace-static-x86_64: Process 564 attached ) = -1 EBUSY (Device or resource busy) [pid 564] set_robust_list(0x7f562f35a9e0, 24 [pid 562] <... clone resumed>, parent_tid=[565], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 565 [pid 561] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 559] ioctl(4, LOOP_CLR_FD [pid 564] <... set_robust_list resumed>) = 0 [pid 562] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 559] <... ioctl resumed>) = 0 [pid 564] memfd_create("syzkaller", 0 [pid 562] <... futex resumed>) = 0 [pid 564] <... memfd_create resumed>) = 3 [pid 562] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 564] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 559] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 559] close(4) = 0 [pid 559] close(3 [pid 554] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 554] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 554] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 559] <... close resumed>) = 0 [pid 554] <... mmap resumed>) = 0x7f5627019000 [pid 559] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 554] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 559] <... futex resumed>) = 1 [pid 556] <... futex resumed>) = 0 [pid 554] <... mprotect resumed>) = 0 [pid 556] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 559] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 556] <... futex resumed>) = 0 [pid 554] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 559] <... open resumed>) = 3 [pid 556] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 565 attached [pid 559] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 556] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 554] <... clone resumed>, parent_tid=[566], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 566 [pid 565] set_robust_list(0x7f562f35a9e0, 24 [pid 559] <... futex resumed>) = 0 [pid 556] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 554] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 565] <... set_robust_list resumed>) = 0 [pid 563] <... write resumed>) = 1048576 [pid 559] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 556] <... futex resumed>) = 0 [pid 554] <... futex resumed>) = 0 [pid 565] memfd_create("syzkaller", 0 [pid 563] munmap(0x7f5626f3a000, 1048576 [pid 561] <... write resumed>) = 1048576 [pid 559] <... open resumed>) = 4 [pid 556] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 554] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 565] <... memfd_create resumed>) = 3 [pid 563] <... munmap resumed>) = 0 [pid 561] munmap(0x7f5626f3a000, 1048576 [pid 559] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 556] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 565] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 563] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 561] <... munmap resumed>) = 0 [pid 559] <... futex resumed>) = 0 [pid 556] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 565] <... mmap resumed>) = 0x7f5626f3a000 [pid 564] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 563] <... openat resumed>) = 4 [pid 561] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 559] ftruncate(4, 33587195 [pid 556] <... futex resumed>) = 0 [pid 563] ioctl(4, LOOP_SET_FD, 3 [pid 561] <... openat resumed>) = 4 [pid 559] <... ftruncate resumed>) = 0 [pid 556] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 563] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 561] ioctl(4, LOOP_SET_FD, 3 [pid 559] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 556] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 563] ioctl(4, LOOP_CLR_FD [pid 561] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 559] <... futex resumed>) = 0 [pid 556] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 563] <... ioctl resumed>) = 0 [pid 561] ioctl(4, LOOP_CLR_FD [pid 559] sendfile(3, 4, NULL, 4 [pid 556] <... futex resumed>) = 0 [pid 561] <... ioctl resumed>) = 0 [pid 556] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 566 attached [pid 566] set_robust_list(0x7f56270399e0, 24) = 0 [pid 559] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 563] ioctl(4, LOOP_SET_FD, 3 [pid 559] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 563] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 561] ioctl(4, LOOP_SET_FD, 3 [pid 559] <... futex resumed>) = 1 [pid 556] <... futex resumed>) = 0 [pid 563] close(4 [pid 561] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 559] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 556] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 566] madvise(0x20000000, 6291467, MADV_REMOVE [pid 563] <... close resumed>) = 0 [pid 561] close(4 [pid 556] <... futex resumed>) = 0 [pid 563] close(3 [pid 561] <... close resumed>) = 0 [pid 556] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 563] <... close resumed>) = 0 [pid 561] close(3 [pid 559] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 563] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 561] <... close resumed>) = 0 [pid 559] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 563] <... futex resumed>) = 1 [pid 561] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 557] <... futex resumed>) = 0 [pid 563] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 561] <... futex resumed>) = 1 [pid 558] <... futex resumed>) = 0 [pid 557] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 565] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 563] <... open resumed>) = 3 [pid 561] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 558] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 557] <... futex resumed>) = 0 [pid 564] <... write resumed>) = 1048576 [pid 563] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 561] <... open resumed>) = 3 [pid 558] <... futex resumed>) = 0 [pid 557] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 564] munmap(0x7f5626f3a000, 1048576 [pid 563] <... futex resumed>) = 0 [pid 561] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 558] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 557] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 563] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 561] <... futex resumed>) = 0 [pid 558] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 557] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 564] <... munmap resumed>) = 0 [pid 563] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 561] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 558] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 557] <... futex resumed>) = 0 [pid 565] <... write resumed>) = 1048576 [pid 564] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 563] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 561] <... open resumed>) = 4 [pid 558] <... futex resumed>) = 0 [pid 557] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 564] <... openat resumed>) = 4 [pid 563] <... open resumed>) = 4 [pid 561] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 558] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 564] ioctl(4, LOOP_SET_FD, 3 [pid 563] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 561] <... futex resumed>) = 0 [pid 558] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 565] munmap(0x7f5626f3a000, 1048576 [pid 564] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 563] <... futex resumed>) = 1 [pid 561] ftruncate(4, 33587195 [pid 558] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 557] <... futex resumed>) = 0 [pid 565] <... munmap resumed>) = 0 [pid 564] ioctl(4, LOOP_CLR_FD [pid 563] ftruncate(4, 33587195 [pid 558] <... futex resumed>) = 0 [pid 557] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 565] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 564] <... ioctl resumed>) = 0 [pid 558] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 565] <... openat resumed>) = 4 [pid 557] <... futex resumed>) = 0 [pid 565] ioctl(4, LOOP_SET_FD, 3 [pid 557] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 565] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 565] ioctl(4, LOOP_CLR_FD) = 0 [pid 564] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 564] close(4) = 0 [pid 565] ioctl(4, LOOP_SET_FD, 3 [pid 564] close(3 [pid 565] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 564] <... close resumed>) = 0 [pid 565] close(4 [pid 564] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 565] <... close resumed>) = 0 [pid 564] <... futex resumed>) = 1 [pid 560] <... futex resumed>) = 0 [pid 565] close(3 [pid 564] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 560] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 565] <... close resumed>) = 0 [pid 564] <... open resumed>) = 3 [pid 560] <... futex resumed>) = 0 [pid 555] <... mmap resumed>) = 0x20000000 [pid 564] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 560] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 555] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 564] <... futex resumed>) = 0 [pid 560] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 555] <... futex resumed>) = 0 [pid 565] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 564] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 560] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 555] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 565] <... futex resumed>) = 1 [pid 564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 562] <... futex resumed>) = 0 [pid 560] <... futex resumed>) = 0 [pid 565] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 564] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 562] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 560] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 564] <... open resumed>) = 4 [pid 562] <... futex resumed>) = 0 [pid 565] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 564] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 562] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 565] <... open resumed>) = 3 [pid 564] <... futex resumed>) = 1 [pid 560] <... futex resumed>) = 0 [pid 565] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 564] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 560] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 565] <... futex resumed>) = 1 [pid 564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 562] <... futex resumed>) = 0 [pid 560] <... futex resumed>) = 0 [pid 565] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 564] ftruncate(4, 33587195 [pid 562] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 560] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 562] <... futex resumed>) = 0 [pid 565] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 562] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 565] <... open resumed>) = 4 [pid 565] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 562] <... futex resumed>) = 0 [pid 565] ftruncate(4, 33587195 [pid 562] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 562] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 566] <... madvise resumed>) = 0 [pid 566] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 554] <... futex resumed>) = 0 [pid 566] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 554] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 555] <... futex resumed>) = 0 [pid 554] <... futex resumed>) = 1 [pid 555] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 554] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 555] <... openat resumed>) = 5 [pid 555] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 554] <... futex resumed>) = 0 [pid 555] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 554] exit_group(0 [pid 566] <... futex resumed>) = ? [pid 555] <... futex resumed>) = ? [pid 554] <... exit_group resumed>) = ? [pid 566] +++ exited with 0 +++ [pid 563] <... ftruncate resumed>) = 0 [pid 561] <... ftruncate resumed>) = 0 [pid 555] +++ exited with 0 +++ [pid 564] <... ftruncate resumed>) = 0 [pid 554] +++ exited with 0 +++ [pid 565] <... ftruncate resumed>) = 0 [pid 564] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 563] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 561] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 565] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 564] <... futex resumed>) = 1 [pid 563] <... futex resumed>) = 1 [pid 561] <... futex resumed>) = 1 [pid 560] <... futex resumed>) = 0 [pid 558] <... futex resumed>) = 0 [pid 557] <... futex resumed>) = 0 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=554, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 565] <... futex resumed>) = 1 [pid 564] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 563] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 562] <... futex resumed>) = 0 [pid 561] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 560] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 558] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 557] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 565] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 563] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 562] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 561] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 560] <... futex resumed>) = 0 [pid 558] <... futex resumed>) = 0 [pid 557] <... futex resumed>) = 0 [pid 292] <... openat resumed>) = 3 [pid 565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 564] sendfile(3, 4, NULL, 4 [pid 563] sendfile(3, 4, NULL, 4 [pid 562] <... futex resumed>) = 0 [pid 561] sendfile(3, 4, NULL, 4 [pid 560] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 558] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 557] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] ioctl(3, LOOP_CLR_FD [pid 565] sendfile(3, 4, NULL, 4 [pid 562] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... ioctl resumed>) = 0 [pid 565] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 564] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 563] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 561] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 292] close(3 [pid 565] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 564] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 563] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 561] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 556] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 563] <... futex resumed>) = 1 [pid 561] <... futex resumed>) = 1 [pid 558] <... futex resumed>) = 0 [pid 557] <... futex resumed>) = 0 [pid 556] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... close resumed>) = 0 [pid 563] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 561] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 558] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 557] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 556] <... futex resumed>) = 0 [pid 563] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 561] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 558] <... futex resumed>) = 0 [pid 557] <... futex resumed>) = 0 [pid 556] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 563] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 561] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 558] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 557] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 556] <... mmap resumed>) = 0x7f5627019000 [pid 565] <... futex resumed>) = 1 [pid 564] <... futex resumed>) = 1 [pid 562] <... futex resumed>) = 0 [pid 560] <... futex resumed>) = 0 [pid 556] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 565] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 564] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 562] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 560] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 556] <... mprotect resumed>) = 0 [pid 565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 562] <... futex resumed>) = 0 [pid 560] <... futex resumed>) = 0 [pid 556] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 567 [pid 565] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 564] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 562] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 560] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 568 attached ./strace-static-x86_64: Process 567 attached [pid 565] <... mmap resumed>) = 0x20000000 [pid 563] <... mmap resumed>) = 0x20000000 [pid 561] <... mmap resumed>) = 0x20000000 [pid 559] <... mmap resumed>) = 0x20000000 [pid 556] <... clone resumed>, parent_tid=[568], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 568 [pid 568] set_robust_list(0x7f56270399e0, 24 [pid 567] set_robust_list(0x5555573645e0, 24 [pid 563] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 561] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 559] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 556] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 564] <... mmap resumed>) = 0x20000000 [pid 565] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 568] <... set_robust_list resumed>) = 0 [pid 567] <... set_robust_list resumed>) = 0 [pid 563] <... futex resumed>) = 1 [pid 561] <... futex resumed>) = 1 [pid 559] <... futex resumed>) = 0 [pid 558] <... futex resumed>) = 0 [pid 557] <... futex resumed>) = 0 [pid 556] <... futex resumed>) = 0 [pid 568] madvise(0x20000000, 6291467, MADV_REMOVE [pid 567] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 564] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 563] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 561] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 559] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 558] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 557] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 562] <... futex resumed>) = 0 [pid 556] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 565] <... futex resumed>) = 1 [pid 567] <... prctl resumed>) = 0 [pid 565] madvise(0x20000000, 6291467, MADV_REMOVE [pid 564] <... futex resumed>) = 1 [pid 563] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 562] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 561] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 560] <... futex resumed>) = 0 [pid 558] <... futex resumed>) = 0 [pid 557] <... futex resumed>) = 0 [pid 567] setpgid(0, 0 [pid 564] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 563] madvise(0x20000000, 6291467, MADV_REMOVE [pid 562] <... futex resumed>) = 0 [pid 561] madvise(0x20000000, 6291467, MADV_REMOVE [pid 560] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 558] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 557] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 567] <... setpgid resumed>) = 0 [pid 564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 562] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 560] <... futex resumed>) = 0 [pid 567] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 564] madvise(0x20000000, 6291467, MADV_REMOVE [pid 560] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 567] <... openat resumed>) = 3 [pid 567] write(3, "1000", 4) = 4 [pid 567] close(3) = 0 [pid 567] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 567] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 567] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 567] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[569], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 569 [pid 567] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 567] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 569 attached [pid 569] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 569] memfd_create("syzkaller", 0) = 3 [pid 569] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 569] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 568] <... madvise resumed>) = 0 [pid 565] <... madvise resumed>) = 0 [pid 565] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 564] <... madvise resumed>) = 0 [pid 563] <... madvise resumed>) = 0 [pid 561] <... madvise resumed>) = 0 [pid 568] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 565] <... futex resumed>) = 1 [pid 564] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 563] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 562] <... futex resumed>) = 0 [pid 561] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 568] <... futex resumed>) = 1 [pid 565] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 564] <... futex resumed>) = 1 [pid 563] <... futex resumed>) = 1 [pid 562] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 561] <... futex resumed>) = 1 [pid 560] <... futex resumed>) = 0 [pid 558] <... futex resumed>) = 0 [pid 557] <... futex resumed>) = 0 [pid 556] <... futex resumed>) = 0 [pid 568] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 565] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 564] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 563] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 562] <... futex resumed>) = 0 [pid 561] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 560] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 558] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 557] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 556] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 569] <... write resumed>) = 1048576 [pid 563] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 561] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 559] <... futex resumed>) = 0 [pid 558] <... futex resumed>) = 0 [pid 557] <... futex resumed>) = 0 [pid 556] <... futex resumed>) = 1 [pid 565] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 564] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 563] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 562] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 561] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 560] <... futex resumed>) = 0 [pid 559] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 558] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 557] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 556] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 569] munmap(0x7f5626f3a000, 1048576 [pid 565] <... openat resumed>) = 5 [pid 564] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 563] <... openat resumed>) = 5 [pid 561] <... openat resumed>) = 5 [pid 559] <... openat resumed>) = 5 [pid 563] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 561] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 559] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 565] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 564] <... openat resumed>) = 5 [pid 563] <... futex resumed>) = 1 [pid 561] <... futex resumed>) = 1 [pid 560] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 559] <... futex resumed>) = 1 [pid 558] <... futex resumed>) = 0 [pid 557] <... futex resumed>) = 0 [pid 556] <... futex resumed>) = 0 [pid 565] <... futex resumed>) = 1 [pid 564] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 563] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 562] <... futex resumed>) = 0 [pid 561] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 560] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 559] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 558] exit_group(0 [pid 557] exit_group(0 [pid 556] exit_group(0 [pid 568] <... futex resumed>) = ? [pid 565] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 564] <... futex resumed>) = 0 [pid 563] <... futex resumed>) = ? [pid 562] exit_group(0 [pid 561] <... futex resumed>) = ? [pid 569] <... munmap resumed>) = 0 [pid 560] exit_group(0 [pid 559] <... futex resumed>) = ? [pid 558] <... exit_group resumed>) = ? [pid 557] <... exit_group resumed>) = ? [pid 556] <... exit_group resumed>) = ? [pid 568] +++ exited with 0 +++ [pid 563] +++ exited with 0 +++ [pid 562] <... exit_group resumed>) = ? [pid 561] +++ exited with 0 +++ [pid 560] <... exit_group resumed>) = ? [pid 564] +++ exited with 0 +++ [pid 560] +++ exited with 0 +++ [pid 557] +++ exited with 0 +++ [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=557, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 569] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 569] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 569] ioctl(4, LOOP_CLR_FD) = 0 [pid 565] <... futex resumed>) = ? [pid 565] +++ exited with 0 +++ [pid 562] +++ exited with 0 +++ [pid 559] +++ exited with 0 +++ [pid 556] +++ exited with 0 +++ [pid 295] <... restart_syscall resumed>) = 0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=560, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=556, si_uid=0, si_status=0, si_utime=0, si_stime=5} --- [pid 558] +++ exited with 0 +++ [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=562, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 295] <... openat resumed>) = 3 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=558, si_uid=0, si_status=0, si_utime=1, si_stime=0} --- [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 295] ioctl(3, LOOP_CLR_FD [pid 294] <... openat resumed>) = 3 [pid 295] <... ioctl resumed>) = 0 [pid 294] ioctl(3, LOOP_CLR_FD [pid 291] restart_syscall(<... resuming interrupted clone ...> [pid 295] close(3 [pid 294] <... ioctl resumed>) = 0 [pid 569] ioctl(4, LOOP_SET_FD, 3 [pid 295] <... close resumed>) = 0 [pid 569] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 296] <... restart_syscall resumed>) = 0 [pid 291] <... restart_syscall resumed>) = 0 [pid 569] close(4) = 0 [pid 569] close(3 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 296] <... openat resumed>) = 3 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 291] <... openat resumed>) = 3 [pid 296] ioctl(3, LOOP_CLR_FD [pid 293] <... openat resumed>) = 3 [pid 291] ioctl(3, LOOP_CLR_FD [pid 296] <... ioctl resumed>) = 0 [pid 293] ioctl(3, LOOP_CLR_FD [pid 291] <... ioctl resumed>) = 0 [pid 296] close(3 [pid 293] <... ioctl resumed>) = 0 [pid 291] close(3 [pid 296] <... close resumed>) = 0 [pid 293] close(3 [pid 291] <... close resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] close(3 [pid 293] <... close resumed>) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 569] <... close resumed>) = 0 [pid 294] <... close resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 570 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 571 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 572 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 573 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 574 [pid 569] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 567] <... futex resumed>) = 0 [pid 567] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 567] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 569] <... futex resumed>) = 1 [pid 569] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 569] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 567] <... futex resumed>) = 0 [pid 569] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 567] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 569] <... open resumed>) = 4 [pid 567] <... futex resumed>) = 0 [pid 569] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 567] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 569] <... futex resumed>) = 0 [pid 567] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 569] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 567] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 574 attached ./strace-static-x86_64: Process 571 attached [pid 569] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 567] <... futex resumed>) = 0 [pid 569] ftruncate(4, 33587195 [pid 567] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 570 attached [pid 574] set_robust_list(0x5555573645e0, 24 [pid 571] set_robust_list(0x5555573645e0, 24 [pid 569] <... ftruncate resumed>) = 0 [pid 574] <... set_robust_list resumed>) = 0 [pid 571] <... set_robust_list resumed>) = 0 [pid 570] set_robust_list(0x5555573645e0, 24 [pid 569] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 567] <... futex resumed>) = 0 [pid 569] sendfile(3, 4, NULL, 4 [pid 567] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 574] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 567] <... futex resumed>) = 0 [pid 571] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 570] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 572 attached ./strace-static-x86_64: Process 573 attached [pid 574] <... prctl resumed>) = 0 [pid 571] <... prctl resumed>) = 0 [pid 570] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 569] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 567] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 574] setpgid(0, 0 [pid 573] set_robust_list(0x5555573645e0, 24 [pid 572] set_robust_list(0x5555573645e0, 24 [pid 571] setpgid(0, 0 [pid 570] <... prctl resumed>) = 0 [pid 569] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 574] <... setpgid resumed>) = 0 [pid 573] <... set_robust_list resumed>) = 0 [pid 572] <... set_robust_list resumed>) = 0 [pid 571] <... setpgid resumed>) = 0 [pid 570] setpgid(0, 0 [pid 569] <... futex resumed>) = 1 [pid 567] <... futex resumed>) = 0 [pid 574] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 573] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 572] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 571] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 570] <... setpgid resumed>) = 0 [pid 569] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 567] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 574] <... openat resumed>) = 3 [pid 573] <... prctl resumed>) = 0 [pid 572] <... prctl resumed>) = 0 [pid 571] <... openat resumed>) = 3 [pid 570] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 567] <... futex resumed>) = 0 [pid 574] write(3, "1000", 4 [pid 573] setpgid(0, 0 [pid 571] write(3, "1000", 4 [pid 567] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 574] <... write resumed>) = 4 [pid 573] <... setpgid resumed>) = 0 [pid 571] <... write resumed>) = 4 [pid 570] <... openat resumed>) = 3 [pid 574] close(3 [pid 573] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 572] setpgid(0, 0 [pid 571] close(3 [pid 570] write(3, "1000", 4 [pid 573] <... openat resumed>) = 3 [pid 571] <... close resumed>) = 0 [pid 574] <... close resumed>) = 0 [pid 573] write(3, "1000", 4 [pid 572] <... setpgid resumed>) = 0 [pid 570] <... write resumed>) = 4 [pid 573] <... write resumed>) = 4 [pid 573] close(3) = 0 [pid 573] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 571] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 574] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 570] close(3 [pid 574] <... futex resumed>) = 0 [pid 573] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 572] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 571] <... futex resumed>) = 0 [pid 570] <... close resumed>) = 0 [pid 574] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 573] <... mmap resumed>) = 0x7f562f33a000 [pid 572] <... openat resumed>) = 3 [pid 571] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 570] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 574] <... mmap resumed>) = 0x7f562f33a000 [pid 573] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 572] write(3, "1000", 4 [pid 571] <... mmap resumed>) = 0x7f562f33a000 [pid 570] <... futex resumed>) = 0 [pid 574] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 573] <... mprotect resumed>) = 0 [pid 572] <... write resumed>) = 4 [pid 571] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 570] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 574] <... mprotect resumed>) = 0 [pid 573] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 572] close(3 [pid 571] <... mprotect resumed>) = 0 [pid 570] <... mmap resumed>) = 0x7f562f33a000 [pid 574] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 572] <... close resumed>) = 0 [pid 571] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 570] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE./strace-static-x86_64: Process 576 attached [pid 573] <... clone resumed>, parent_tid=[575], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 575 [pid 572] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 570] <... mprotect resumed>) = 0 [pid 576] set_robust_list(0x7f562f35a9e0, 24 [pid 574] <... clone resumed>, parent_tid=[576], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 576 [pid 573] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 572] <... futex resumed>) = 0 [pid 571] <... clone resumed>, parent_tid=[577], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 577 [pid 570] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 576] <... set_robust_list resumed>) = 0 [pid 574] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 573] <... futex resumed>) = 0 [pid 572] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 571] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 576] memfd_create("syzkaller", 0 [pid 574] <... futex resumed>) = 0 [pid 573] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 572] <... mmap resumed>) = 0x7f562f33a000 [pid 571] <... futex resumed>) = 0 [pid 570] <... clone resumed>, parent_tid=[578], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 578 [pid 576] <... memfd_create resumed>) = 3 [pid 574] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 572] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 571] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 570] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 576] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 572] <... mprotect resumed>) = 0 [pid 576] <... mmap resumed>) = 0x7f5626f3a000 [pid 572] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 570] <... futex resumed>) = 0 ./strace-static-x86_64: Process 577 attached [pid 577] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 577] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 575 attached [pid 575] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 575] memfd_create("syzkaller", 0 [pid 577] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 575] <... memfd_create resumed>) = 3 [pid 576] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 570] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 575] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 572] <... clone resumed>, parent_tid=[579], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 579 [pid 575] <... mmap resumed>) = 0x7f5626f3a000 [pid 572] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 576] <... write resumed>) = 1048576 [pid 575] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 572] <... futex resumed>) = 0 [pid 576] munmap(0x7f5626f3a000, 1048576 [pid 572] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 576] <... munmap resumed>) = 0 [pid 576] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 576] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 576] ioctl(4, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 578 attached [pid 578] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 577] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 578] memfd_create("syzkaller", 0 [pid 576] ioctl(4, LOOP_SET_FD, 3 [pid 578] <... memfd_create resumed>) = 3 [pid 576] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 578] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 576] close(4) = 0 ./strace-static-x86_64: Process 579 attached [pid 579] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 579] memfd_create("syzkaller", 0) = 3 [pid 579] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 576] close(3 [pid 578] <... mmap resumed>) = 0x7f5626f3a000 [pid 576] <... close resumed>) = 0 [pid 576] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 574] <... futex resumed>) = 0 [pid 576] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 574] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 576] <... open resumed>) = 3 [pid 574] <... futex resumed>) = 0 [pid 576] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 574] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 576] <... futex resumed>) = 0 [pid 574] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 576] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 574] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 576] <... open resumed>) = 4 [pid 574] <... futex resumed>) = 0 [pid 576] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 574] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 578] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 576] <... futex resumed>) = 0 [pid 575] <... write resumed>) = 1048576 [pid 574] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 576] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 574] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 576] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 574] <... futex resumed>) = 0 [pid 577] <... write resumed>) = 1048576 [pid 576] ftruncate(4, 33587195 [pid 574] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 576] <... ftruncate resumed>) = 0 [pid 569] <... mmap resumed>) = 0x20000000 [pid 576] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 569] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 576] <... futex resumed>) = 1 [pid 574] <... futex resumed>) = 0 [pid 569] <... futex resumed>) = 1 [pid 567] <... futex resumed>) = 0 [pid 576] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 574] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 569] madvise(0x20000000, 6291467, MADV_REMOVE [pid 567] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 578] <... write resumed>) = 1048576 [pid 577] munmap(0x7f5626f3a000, 1048576 [pid 576] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 575] munmap(0x7f5626f3a000, 1048576 [pid 574] <... futex resumed>) = 0 [pid 567] <... futex resumed>) = 0 [pid 576] sendfile(3, 4, NULL, 4 [pid 574] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 567] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 579] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 578] munmap(0x7f5626f3a000, 1048576) = 0 [pid 578] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 575] <... munmap resumed>) = 0 [pid 578] <... openat resumed>) = 4 [pid 575] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 578] ioctl(4, LOOP_SET_FD, 3 [pid 577] <... munmap resumed>) = 0 [pid 578] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 577] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 575] <... openat resumed>) = 4 [pid 578] ioctl(4, LOOP_CLR_FD [pid 575] ioctl(4, LOOP_SET_FD, 3 [pid 578] <... ioctl resumed>) = 0 [pid 577] <... openat resumed>) = 4 [pid 575] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 577] ioctl(4, LOOP_SET_FD, 3 [pid 575] ioctl(4, LOOP_CLR_FD [pid 577] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 575] <... ioctl resumed>) = 0 [pid 577] ioctl(4, LOOP_CLR_FD) = 0 [pid 578] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 578] close(4 [pid 575] ioctl(4, LOOP_SET_FD, 3 [pid 578] <... close resumed>) = 0 [pid 579] <... write resumed>) = 1048576 [pid 579] munmap(0x7f5626f3a000, 1048576) = 0 [pid 579] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 578] close(3 [pid 579] <... openat resumed>) = 4 [pid 579] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 579] ioctl(4, LOOP_CLR_FD) = 0 [pid 578] <... close resumed>) = 0 [pid 577] ioctl(4, LOOP_SET_FD, 3 [pid 575] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 578] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 577] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 575] close(4 [pid 578] <... futex resumed>) = 1 [pid 577] close(4 [pid 576] <... sendfile resumed>) = 4 [pid 575] <... close resumed>) = 0 [pid 570] <... futex resumed>) = 0 [pid 569] <... madvise resumed>) = 0 [pid 579] ioctl(4, LOOP_SET_FD, 3 [pid 578] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 577] <... close resumed>) = 0 [pid 576] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 575] close(3 [pid 570] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 579] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 577] close(3 [pid 576] <... futex resumed>) = 1 [pid 575] <... close resumed>) = 0 [pid 574] <... futex resumed>) = 0 [pid 570] <... futex resumed>) = 0 [pid 579] close(4 [pid 578] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 577] <... close resumed>) = 0 [pid 576] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 575] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 574] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 570] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 569] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 579] <... close resumed>) = 0 [pid 578] <... open resumed>) = 3 [pid 577] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 576] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 575] <... futex resumed>) = 1 [pid 574] <... futex resumed>) = 0 [pid 573] <... futex resumed>) = 0 [pid 569] <... futex resumed>) = 1 [pid 567] <... futex resumed>) = 0 [pid 579] close(3 [pid 578] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 577] <... futex resumed>) = 1 [pid 576] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 575] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 574] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 573] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 571] <... futex resumed>) = 0 [pid 569] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 567] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 579] <... close resumed>) = 0 [pid 578] <... futex resumed>) = 1 [pid 577] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 575] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 573] <... futex resumed>) = 0 [pid 571] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 570] <... futex resumed>) = 0 [pid 569] <... openat resumed>) = 5 [pid 567] <... futex resumed>) = 0 [pid 578] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 577] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 575] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 573] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 571] <... futex resumed>) = 0 [pid 570] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 567] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 579] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 577] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 575] <... open resumed>) = 3 [pid 571] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 570] <... futex resumed>) = 0 [pid 569] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 567] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 579] <... futex resumed>) = 1 [pid 578] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 577] <... open resumed>) = 3 [pid 575] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 572] <... futex resumed>) = 0 [pid 570] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 579] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 578] <... open resumed>) = 4 [pid 577] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 575] <... futex resumed>) = 1 [pid 573] <... futex resumed>) = 0 [pid 572] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 569] <... futex resumed>) = 0 [pid 567] exit_group(0 [pid 579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 578] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 577] <... futex resumed>) = 1 [pid 575] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 573] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 572] <... futex resumed>) = 0 [pid 571] <... futex resumed>) = 0 [pid 567] <... exit_group resumed>) = ? [pid 579] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 578] <... futex resumed>) = 1 [pid 577] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 575] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 573] <... futex resumed>) = 0 [pid 572] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 571] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 570] <... futex resumed>) = 0 [pid 569] +++ exited with 0 +++ [pid 579] <... open resumed>) = 3 [pid 578] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 577] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 575] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 571] <... futex resumed>) = 0 [pid 570] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 579] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 577] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 575] <... open resumed>) = 4 [pid 571] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 570] <... futex resumed>) = 0 [pid 579] <... futex resumed>) = 1 [pid 578] ftruncate(4, 33587195 [pid 577] <... open resumed>) = 4 [pid 575] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 572] <... futex resumed>) = 0 [pid 570] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 579] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 577] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 575] <... futex resumed>) = 0 [pid 572] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 577] <... futex resumed>) = 1 [pid 575] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 572] <... futex resumed>) = 0 [pid 571] <... futex resumed>) = 0 [pid 579] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 577] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 572] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 571] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 579] <... open resumed>) = 4 [pid 577] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 571] <... futex resumed>) = 0 [pid 579] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 577] ftruncate(4, 33587195 [pid 571] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 579] <... futex resumed>) = 1 [pid 572] <... futex resumed>) = 0 [pid 579] ftruncate(4, 33587195 [pid 572] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 572] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 567] +++ exited with 0 +++ [pid 573] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 EAGAIN (Resource temporarily unavailable) [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=567, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 573] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 579] <... ftruncate resumed>) = 0 [pid 578] <... ftruncate resumed>) = 0 [pid 577] <... ftruncate resumed>) = 0 [pid 575] <... futex resumed>) = 0 [pid 573] <... futex resumed>) = 1 [pid 579] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 578] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 577] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 575] ftruncate(4, 33587195 [pid 573] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 579] <... futex resumed>) = 1 [pid 578] <... futex resumed>) = 1 [pid 577] <... futex resumed>) = 1 [pid 572] <... futex resumed>) = 0 [pid 571] <... futex resumed>) = 0 [pid 570] <... futex resumed>) = 0 [pid 579] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 578] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 577] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 575] <... ftruncate resumed>) = 0 [pid 572] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 571] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 570] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 577] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 575] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 572] <... futex resumed>) = 0 [pid 571] <... futex resumed>) = 0 [pid 570] <... futex resumed>) = 0 [pid 579] sendfile(3, 4, NULL, 4 [pid 578] sendfile(3, 4, NULL, 4 [pid 577] sendfile(3, 4, NULL, 4 [pid 575] <... futex resumed>) = 1 [pid 573] <... futex resumed>) = 0 [pid 572] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 571] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 570] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 575] sendfile(3, 4, NULL, 4 [pid 573] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 573] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... openat resumed>) = 3 [pid 579] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 578] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 577] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 575] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 292] ioctl(3, LOOP_CLR_FD [pid 579] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 578] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 577] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 575] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... ioctl resumed>) = 0 [pid 579] <... futex resumed>) = 1 [pid 578] <... futex resumed>) = 1 [pid 577] <... futex resumed>) = 1 [pid 575] <... futex resumed>) = 1 [pid 573] <... futex resumed>) = 0 [pid 572] <... futex resumed>) = 0 [pid 571] <... futex resumed>) = 0 [pid 570] <... futex resumed>) = 0 [pid 292] close(3 [pid 579] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 578] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 577] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 575] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 573] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 572] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 571] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 570] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... close resumed>) = 0 [pid 579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 577] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 575] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 573] <... futex resumed>) = 0 [pid 572] <... futex resumed>) = 0 [pid 571] <... futex resumed>) = 0 [pid 570] <... futex resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 579] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 578] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 577] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 575] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 573] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 572] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 571] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 570] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 576] <... mmap resumed>) = 0x20000000 [pid 576] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 574] <... futex resumed>) = 0 [pid 576] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 578] <... mmap resumed>) = 0x20000000 [pid 577] <... mmap resumed>) = 0x20000000 [pid 577] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 574] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 580 [pid 577] <... futex resumed>) = 1 [pid 574] <... futex resumed>) = 1 [pid 577] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 576] <... futex resumed>) = 0 [pid 576] madvise(0x20000000, 6291467, MADV_REMOVE [pid 575] <... mmap resumed>) = 0x20000000 [pid 574] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 571] <... futex resumed>) = 0 ./strace-static-x86_64: Process 580 attached [pid 579] <... mmap resumed>) = 0x20000000 [pid 578] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 575] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 571] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 580] set_robust_list(0x5555573645e0, 24 [pid 579] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 578] <... futex resumed>) = 1 [pid 577] <... futex resumed>) = 0 [pid 575] <... futex resumed>) = 1 [pid 573] <... futex resumed>) = 0 [pid 571] <... futex resumed>) = 1 [pid 570] <... futex resumed>) = 0 [pid 580] <... set_robust_list resumed>) = 0 [pid 579] <... futex resumed>) = 1 [pid 578] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 577] madvise(0x20000000, 6291467, MADV_REMOVE [pid 575] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 573] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 572] <... futex resumed>) = 0 [pid 571] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 570] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 580] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 579] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 575] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 573] <... futex resumed>) = 0 [pid 572] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 570] <... futex resumed>) = 0 [pid 580] <... prctl resumed>) = 0 [pid 579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 578] madvise(0x20000000, 6291467, MADV_REMOVE [pid 575] madvise(0x20000000, 6291467, MADV_REMOVE [pid 573] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 572] <... futex resumed>) = 0 [pid 570] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 580] setpgid(0, 0 [pid 579] madvise(0x20000000, 6291467, MADV_REMOVE [pid 572] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 580] <... setpgid resumed>) = 0 [pid 580] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 580] write(3, "1000", 4) = 4 [pid 580] close(3) = 0 [pid 580] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 580] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 580] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 580] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[581], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 581 [pid 580] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 580] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 581 attached [pid 581] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 581] memfd_create("syzkaller", 0) = 3 [pid 581] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 581] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 579] <... madvise resumed>) = 0 [pid 578] <... madvise resumed>) = 0 [pid 577] <... madvise resumed>) = 0 [pid 576] <... madvise resumed>) = 0 [pid 575] <... madvise resumed>) = 0 [pid 576] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 574] <... futex resumed>) = 0 [pid 576] <... futex resumed>) = 1 [pid 574] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 579] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 578] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 577] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 575] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 574] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 579] <... futex resumed>) = 1 [pid 578] <... futex resumed>) = 1 [pid 577] <... futex resumed>) = 1 [pid 576] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 575] <... futex resumed>) = 1 [pid 573] <... futex resumed>) = 0 [pid 572] <... futex resumed>) = 0 [pid 571] <... futex resumed>) = 0 [pid 570] <... futex resumed>) = 0 [pid 579] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 578] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 577] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 576] <... openat resumed>) = 5 [pid 575] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 573] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 572] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 571] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 570] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 581] <... write resumed>) = 1048576 [pid 579] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 578] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 577] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 576] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 575] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 573] <... futex resumed>) = 0 [pid 579] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 578] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 577] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 575] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 573] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 579] <... openat resumed>) = 5 [pid 578] <... openat resumed>) = 5 [pid 577] <... openat resumed>) = 5 [pid 575] <... openat resumed>) = 5 [pid 572] <... futex resumed>) = 0 [pid 571] <... futex resumed>) = 0 [pid 570] <... futex resumed>) = 0 [pid 579] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 578] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 577] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 575] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 579] <... futex resumed>) = 0 [pid 578] <... futex resumed>) = 0 [pid 577] <... futex resumed>) = 0 [pid 575] <... futex resumed>) = 1 [pid 573] <... futex resumed>) = 0 [pid 579] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 578] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 577] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 575] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 573] exit_group(0 [pid 575] <... futex resumed>) = ? [pid 573] <... exit_group resumed>) = ? [pid 570] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 571] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 581] munmap(0x7f5626f3a000, 1048576 [pid 576] <... futex resumed>) = 1 [pid 575] +++ exited with 0 +++ [pid 574] <... futex resumed>) = 0 [pid 572] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 571] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 570] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 576] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 574] exit_group(0 [pid 572] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 571] exit_group(0 [pid 570] exit_group(0 [pid 576] <... futex resumed>) = ? [pid 574] <... exit_group resumed>) = ? [pid 572] exit_group(0 [pid 571] <... exit_group resumed>) = ? [pid 570] <... exit_group resumed>) = ? [pid 581] <... munmap resumed>) = 0 [pid 578] <... futex resumed>) = ? [pid 577] <... futex resumed>) = ? [pid 573] +++ exited with 0 +++ [pid 572] <... exit_group resumed>) = ? [pid 579] <... futex resumed>) = ? [pid 578] +++ exited with 0 +++ [pid 576] +++ exited with 0 +++ [pid 574] +++ exited with 0 +++ [pid 570] +++ exited with 0 +++ [pid 581] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 577] +++ exited with 0 +++ [pid 571] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=573, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 579] +++ exited with 0 +++ [pid 572] +++ exited with 0 +++ [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=570, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=574, si_uid=0, si_status=0, si_utime=0, si_stime=6} --- [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=571, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=572, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] <... openat resumed>) = 3 [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 291] restart_syscall(<... resuming interrupted clone ...> [pid 296] ioctl(3, LOOP_CLR_FD) = 0 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 296] close(3 [pid 581] <... openat resumed>) = 4 [pid 296] <... close resumed>) = 0 [pid 294] <... openat resumed>) = 3 [pid 294] ioctl(3, LOOP_CLR_FD) = 0 [pid 294] close(3) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 582 [pid 581] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 581] ioctl(4, LOOP_CLR_FD) = 0 [pid 295] <... restart_syscall resumed>) = 0 [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3 [pid 295] ioctl(3, LOOP_CLR_FD) = 0 [pid 295] close(3) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 583 [pid 581] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 581] close(4) = 0 [pid 581] close(3 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] <... restart_syscall resumed>) = 0 [pid 581] <... close resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 584 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 293] <... openat resumed>) = 3 [pid 291] <... openat resumed>) = 3 [pid 293] ioctl(3, LOOP_CLR_FD [pid 291] ioctl(3, LOOP_CLR_FD [pid 293] <... ioctl resumed>) = 0 [pid 291] <... ioctl resumed>) = 0 [pid 293] close(3 [pid 291] close(3 [pid 293] <... close resumed>) = 0 [pid 291] <... close resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 581] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 580] <... futex resumed>) = 0 [pid 580] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 580] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 585 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 586 [pid 581] <... futex resumed>) = 1 [pid 581] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 581] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 580] <... futex resumed>) = 0 [pid 581] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 580] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 581] <... open resumed>) = 4 [pid 580] <... futex resumed>) = 0 [pid 581] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 580] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 581] <... futex resumed>) = 0 [pid 580] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 581] ftruncate(4, 33587195 [pid 580] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 581] <... ftruncate resumed>) = 0 [pid 580] <... futex resumed>) = 0 [pid 581] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 580] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 581] <... futex resumed>) = 0 [pid 580] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 581] sendfile(3, 4, NULL, 4 [pid 580] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 580] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 585 attached [pid 581] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 581] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 580] <... futex resumed>) = 0 ./strace-static-x86_64: Process 586 attached [pid 581] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 580] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 584 attached ./strace-static-x86_64: Process 583 attached ./strace-static-x86_64: Process 582 attached [pid 586] set_robust_list(0x5555573645e0, 24 [pid 585] set_robust_list(0x5555573645e0, 24 [pid 580] <... futex resumed>) = 0 [pid 586] <... set_robust_list resumed>) = 0 [pid 585] <... set_robust_list resumed>) = 0 [pid 584] set_robust_list(0x5555573645e0, 24 [pid 583] set_robust_list(0x5555573645e0, 24 [pid 580] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 586] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 585] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 584] <... set_robust_list resumed>) = 0 [pid 583] <... set_robust_list resumed>) = 0 [pid 582] set_robust_list(0x5555573645e0, 24 [pid 586] <... prctl resumed>) = 0 [pid 585] <... prctl resumed>) = 0 [pid 584] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 583] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 582] <... set_robust_list resumed>) = 0 [pid 586] setpgid(0, 0 [pid 585] setpgid(0, 0 [pid 584] <... prctl resumed>) = 0 [pid 583] <... prctl resumed>) = 0 [pid 582] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 584] setpgid(0, 0 [pid 583] setpgid(0, 0 [pid 584] <... setpgid resumed>) = 0 [pid 582] <... prctl resumed>) = 0 [pid 583] <... setpgid resumed>) = 0 [pid 586] <... setpgid resumed>) = 0 [pid 585] <... setpgid resumed>) = 0 [pid 584] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 583] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 582] setpgid(0, 0 [pid 586] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 585] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 584] <... openat resumed>) = 3 [pid 583] <... openat resumed>) = 3 [pid 582] <... setpgid resumed>) = 0 [pid 586] <... openat resumed>) = 3 [pid 585] <... openat resumed>) = 3 [pid 584] write(3, "1000", 4 [pid 583] write(3, "1000", 4 [pid 582] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 586] write(3, "1000", 4 [pid 585] write(3, "1000", 4 [pid 584] <... write resumed>) = 4 [pid 583] <... write resumed>) = 4 [pid 582] <... openat resumed>) = 3 [pid 586] <... write resumed>) = 4 [pid 585] <... write resumed>) = 4 [pid 584] close(3 [pid 583] close(3 [pid 582] write(3, "1000", 4 [pid 586] close(3 [pid 585] close(3 [pid 584] <... close resumed>) = 0 [pid 583] <... close resumed>) = 0 [pid 582] <... write resumed>) = 4 [pid 586] <... close resumed>) = 0 [pid 585] <... close resumed>) = 0 [pid 584] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 583] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 582] close(3 [pid 584] <... futex resumed>) = 0 [pid 583] <... futex resumed>) = 0 [pid 584] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 583] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 582] <... close resumed>) = 0 [pid 586] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 585] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 584] <... mmap resumed>) = 0x7f562f33a000 [pid 583] <... mmap resumed>) = 0x7f562f33a000 [pid 582] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 586] <... futex resumed>) = 0 [pid 585] <... futex resumed>) = 0 [pid 584] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 583] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 582] <... futex resumed>) = 0 [pid 586] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 585] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 584] <... mprotect resumed>) = 0 [pid 583] <... mprotect resumed>) = 0 [pid 582] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 586] <... mmap resumed>) = 0x7f562f33a000 [pid 585] <... mmap resumed>) = 0x7f562f33a000 [pid 584] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 582] <... mmap resumed>) = 0x7f562f33a000 [pid 586] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 585] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 583] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 582] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 586] <... mprotect resumed>) = 0 [pid 585] <... mprotect resumed>) = 0 [pid 584] <... clone resumed>, parent_tid=[587], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 587 [pid 582] <... mprotect resumed>) = 0 [pid 586] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 585] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 586] <... clone resumed>, parent_tid=[589], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 589 [pid 585] <... clone resumed>, parent_tid=[590], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 590 [pid 586] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 585] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 586] <... futex resumed>) = 0 [pid 585] <... futex resumed>) = 0 [pid 586] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 585] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 590 attached [pid 584] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 583] <... clone resumed>, parent_tid=[588], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 588 [pid 582] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 590] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 590] memfd_create("syzkaller", 0 [pid 584] <... futex resumed>) = 0 [pid 584] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 590] <... memfd_create resumed>) = 3 [pid 590] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 583] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 582] <... clone resumed>, parent_tid=[591], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 591 [pid 583] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 582] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 582] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 589 attached [pid 589] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 589] memfd_create("syzkaller", 0) = 3 [pid 589] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 591 attached ./strace-static-x86_64: Process 588 attached ./strace-static-x86_64: Process 587 attached [pid 589] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 591] set_robust_list(0x7f562f35a9e0, 24 [pid 588] set_robust_list(0x7f562f35a9e0, 24 [pid 587] set_robust_list(0x7f562f35a9e0, 24 [pid 591] <... set_robust_list resumed>) = 0 [pid 588] <... set_robust_list resumed>) = 0 [pid 587] <... set_robust_list resumed>) = 0 [pid 591] memfd_create("syzkaller", 0) = 3 [pid 588] memfd_create("syzkaller", 0 [pid 587] memfd_create("syzkaller", 0 [pid 591] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 588] <... memfd_create resumed>) = 3 [pid 587] <... memfd_create resumed>) = 3 [pid 591] <... mmap resumed>) = 0x7f5626f3a000 [pid 588] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 587] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 590] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 591] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 588] <... mmap resumed>) = 0x7f5626f3a000 [pid 587] <... mmap resumed>) = 0x7f5626f3a000 [pid 588] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 590] <... write resumed>) = 1048576 [pid 587] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 589] <... write resumed>) = 1048576 [pid 590] munmap(0x7f5626f3a000, 1048576) = 0 [pid 589] munmap(0x7f5626f3a000, 1048576) = 0 [pid 590] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 590] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 590] ioctl(4, LOOP_CLR_FD) = 0 [pid 589] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 589] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 589] ioctl(4, LOOP_CLR_FD [pid 590] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 590] close(4) = 0 [pid 590] close(3 [pid 589] <... ioctl resumed>) = 0 [pid 589] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 589] close(4) = 0 [pid 589] close(3) = 0 [pid 590] <... close resumed>) = 0 [pid 589] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 586] <... futex resumed>) = 0 [pid 586] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 586] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 580] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 580] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 580] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 580] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 580] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 590] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 589] <... futex resumed>) = 1 [pid 585] <... futex resumed>) = 0 [pid 580] <... clone resumed>, parent_tid=[592], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 592 [pid 590] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 589] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 585] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 580] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 589] <... open resumed>) = 3 [pid 585] <... futex resumed>) = 0 [pid 580] <... futex resumed>) = 0 [pid 590] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 589] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 585] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 580] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 590] <... open resumed>) = 3 [pid 589] <... futex resumed>) = 1 [pid 586] <... futex resumed>) = 0 [pid 590] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 589] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 586] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 590] <... futex resumed>) = 1 [pid 589] <... open resumed>) = 4 [pid 587] <... write resumed>) = 1048576 [pid 586] <... futex resumed>) = 0 [pid 585] <... futex resumed>) = 0 [pid 591] <... write resumed>) = 1048576 [pid 590] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 589] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 588] <... write resumed>) = 1048576 [pid 587] munmap(0x7f5626f3a000, 1048576 [pid 586] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 585] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 592 attached [pid 591] munmap(0x7f5626f3a000, 1048576 [pid 590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 589] <... futex resumed>) = 0 [pid 588] munmap(0x7f5626f3a000, 1048576 [pid 587] <... munmap resumed>) = 0 [pid 586] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 585] <... futex resumed>) = 0 [pid 592] set_robust_list(0x7f56270399e0, 24 [pid 591] <... munmap resumed>) = 0 [pid 590] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 589] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 588] <... munmap resumed>) = 0 [pid 587] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 586] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 585] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 592] <... set_robust_list resumed>) = 0 [pid 591] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 590] <... open resumed>) = 4 [pid 589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 588] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 587] <... openat resumed>) = 4 [pid 586] <... futex resumed>) = 0 [pid 592] madvise(0x20000000, 6291467, MADV_REMOVE [pid 591] <... openat resumed>) = 4 [pid 590] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 589] ftruncate(4, 33587195 [pid 588] <... openat resumed>) = 4 [pid 587] ioctl(4, LOOP_SET_FD, 3 [pid 586] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 591] ioctl(4, LOOP_SET_FD, 3 [pid 590] <... futex resumed>) = 1 [pid 588] ioctl(4, LOOP_SET_FD, 3 [pid 587] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 585] <... futex resumed>) = 0 [pid 591] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 590] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 588] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 587] ioctl(4, LOOP_CLR_FD [pid 585] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 592] <... madvise resumed>) = 0 [pid 591] ioctl(4, LOOP_CLR_FD [pid 590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 588] ioctl(4, LOOP_CLR_FD [pid 587] <... ioctl resumed>) = 0 [pid 585] <... futex resumed>) = 0 [pid 592] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 591] <... ioctl resumed>) = 0 [pid 590] ftruncate(4, 33587195 [pid 588] <... ioctl resumed>) = 0 [pid 585] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 592] <... futex resumed>) = 1 [pid 580] <... futex resumed>) = 0 [pid 592] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 580] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 592] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 580] <... futex resumed>) = 0 [pid 580] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 587] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 589] <... ftruncate resumed>) = 0 [pid 589] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 587] close(4 [pid 592] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 591] ioctl(4, LOOP_SET_FD, 3 [pid 590] <... ftruncate resumed>) = 0 [pid 589] <... futex resumed>) = 1 [pid 588] ioctl(4, LOOP_SET_FD, 3 [pid 587] <... close resumed>) = 0 [pid 586] <... futex resumed>) = 0 [pid 581] <... mmap resumed>) = 0x20000000 [pid 592] <... openat resumed>) = 5 [pid 591] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 590] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 589] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 588] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 587] close(3 [pid 586] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 581] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 592] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 591] close(4 [pid 590] <... futex resumed>) = 1 [pid 589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 588] close(4 [pid 586] <... futex resumed>) = 0 [pid 585] <... futex resumed>) = 0 [pid 581] <... futex resumed>) = 0 [pid 590] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 589] sendfile(3, 4, NULL, 4 [pid 586] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 585] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 581] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 592] <... futex resumed>) = 1 [pid 591] <... close resumed>) = 0 [pid 590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 589] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 588] <... close resumed>) = 0 [pid 587] <... close resumed>) = 0 [pid 585] <... futex resumed>) = 0 [pid 580] <... futex resumed>) = 0 [pid 592] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 591] close(3 [pid 590] sendfile(3, 4, NULL, 4 [pid 589] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 588] close(3 [pid 585] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 580] exit_group(0 [pid 590] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 589] <... futex resumed>) = 1 [pid 587] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 586] <... futex resumed>) = 0 [pid 581] <... futex resumed>) = ? [pid 580] <... exit_group resumed>) = ? [pid 590] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 589] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 586] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 581] +++ exited with 0 +++ [pid 591] <... close resumed>) = 0 [pid 590] <... futex resumed>) = 1 [pid 589] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 586] <... futex resumed>) = 0 [pid 585] <... futex resumed>) = 0 [pid 590] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 589] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 586] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 585] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 592] <... futex resumed>) = ? [pid 591] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 588] <... close resumed>) = 0 [pid 587] <... futex resumed>) = 1 [pid 585] <... futex resumed>) = 0 [pid 584] <... futex resumed>) = 0 [pid 590] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 585] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 592] +++ exited with 0 +++ [pid 591] <... futex resumed>) = 1 [pid 588] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 587] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 584] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 582] <... futex resumed>) = 0 [pid 580] +++ exited with 0 +++ [pid 591] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 588] <... futex resumed>) = 1 [pid 587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 584] <... futex resumed>) = 0 [pid 583] <... futex resumed>) = 0 [pid 582] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=580, si_uid=0, si_status=0, si_utime=0, si_stime=5} --- [pid 591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 588] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 587] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 584] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 583] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 582] <... futex resumed>) = 0 [pid 591] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 587] <... open resumed>) = 3 [pid 583] <... futex resumed>) = 0 [pid 582] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 591] <... open resumed>) = 3 [pid 588] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 587] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 583] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 591] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 588] <... open resumed>) = 3 [pid 587] <... futex resumed>) = 1 [pid 584] <... futex resumed>) = 0 [pid 292] <... openat resumed>) = 3 [pid 591] <... futex resumed>) = 1 [pid 588] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 587] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 584] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 582] <... futex resumed>) = 0 [pid 292] ioctl(3, LOOP_CLR_FD [pid 591] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 588] <... futex resumed>) = 1 [pid 587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 584] <... futex resumed>) = 0 [pid 583] <... futex resumed>) = 0 [pid 582] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... ioctl resumed>) = 0 [pid 591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 588] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 587] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 584] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 583] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 582] <... futex resumed>) = 0 [pid 292] close(3 [pid 591] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 587] <... open resumed>) = 4 [pid 583] <... futex resumed>) = 0 [pid 582] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 590] <... mmap resumed>) = 0x20000000 [pid 589] <... mmap resumed>) = 0x20000000 [pid 292] <... close resumed>) = 0 [pid 590] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 589] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 590] <... futex resumed>) = 1 [pid 589] <... futex resumed>) = 1 [pid 586] <... futex resumed>) = 0 [pid 585] <... futex resumed>) = 0 [pid 590] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 589] madvise(0x20000000, 6291467, MADV_REMOVE [pid 586] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 585] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 593 ./strace-static-x86_64: Process 593 attached [pid 591] <... open resumed>) = 4 [pid 590] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 588] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 587] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 586] <... futex resumed>) = 0 [pid 585] <... futex resumed>) = 0 [pid 583] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 593] set_robust_list(0x5555573645e0, 24 [pid 591] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 590] madvise(0x20000000, 6291467, MADV_REMOVE [pid 588] <... open resumed>) = 4 [pid 587] <... futex resumed>) = 1 [pid 586] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 585] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 584] <... futex resumed>) = 0 [pid 593] <... set_robust_list resumed>) = 0 [pid 591] <... futex resumed>) = 1 [pid 588] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 587] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 584] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 582] <... futex resumed>) = 0 [pid 593] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 591] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 588] <... futex resumed>) = 1 [pid 587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 584] <... futex resumed>) = 0 [pid 583] <... futex resumed>) = 0 [pid 582] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 593] <... prctl resumed>) = 0 [pid 591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 588] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 587] ftruncate(4, 33587195 [pid 584] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 583] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 582] <... futex resumed>) = 0 [pid 593] setpgid(0, 0 [pid 591] ftruncate(4, 33587195 [pid 588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 583] <... futex resumed>) = 0 [pid 582] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 593] <... setpgid resumed>) = 0 [pid 588] ftruncate(4, 33587195 [pid 583] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 593] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 593] write(3, "1000", 4) = 4 [pid 593] close(3) = 0 [pid 593] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 593] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 593] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 593] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[594], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 594 [pid 593] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 593] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 594 attached [pid 594] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 594] memfd_create("syzkaller", 0) = 3 [pid 594] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 594] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 590] <... madvise resumed>) = 0 [pid 591] <... ftruncate resumed>) = 0 [pid 590] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 589] <... madvise resumed>) = 0 [pid 588] <... ftruncate resumed>) = 0 [pid 587] <... ftruncate resumed>) = 0 [pid 591] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 588] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 591] <... futex resumed>) = 1 [pid 588] <... futex resumed>) = 1 [pid 583] <... futex resumed>) = 0 [pid 582] <... futex resumed>) = 0 [pid 590] <... futex resumed>) = 1 [pid 587] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 585] <... futex resumed>) = 0 [pid 591] sendfile(3, 4, NULL, 4 [pid 588] sendfile(3, 4, NULL, 4 [pid 587] <... futex resumed>) = 1 [pid 585] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 584] <... futex resumed>) = 0 [pid 583] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 582] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 583] <... futex resumed>) = 0 [pid 582] <... futex resumed>) = 0 [pid 591] <... sendfile resumed>) = 4 [pid 590] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 589] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 587] sendfile(3, 4, NULL, 4 [pid 585] <... futex resumed>) = 0 [pid 584] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 583] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 582] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 591] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 590] <... openat resumed>) = 5 [pid 585] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 584] <... futex resumed>) = 0 [pid 582] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 586] <... futex resumed>) = 0 [pid 589] <... futex resumed>) = 1 [pid 591] <... futex resumed>) = 0 [pid 582] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 591] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 582] <... futex resumed>) = 0 [pid 594] <... write resumed>) = 1048576 [pid 590] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 589] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 586] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 584] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 582] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 590] <... futex resumed>) = 1 [pid 588] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 587] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 586] <... futex resumed>) = 0 [pid 585] <... futex resumed>) = 0 [pid 590] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 588] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 587] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 586] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 585] exit_group(0 [pid 590] <... futex resumed>) = ? [pid 588] <... futex resumed>) = 1 [pid 587] <... futex resumed>) = 1 [pid 585] <... exit_group resumed>) = ? [pid 584] <... futex resumed>) = 0 [pid 583] <... futex resumed>) = 0 [pid 590] +++ exited with 0 +++ [pid 589] <... openat resumed>) = 5 [pid 588] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 587] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 585] +++ exited with 0 +++ [pid 584] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 583] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=585, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 589] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 587] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 584] <... futex resumed>) = 0 [pid 583] <... futex resumed>) = 0 [pid 589] <... futex resumed>) = 1 [pid 588] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 587] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 586] <... futex resumed>) = 0 [pid 584] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 583] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 589] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 586] exit_group(0 [pid 589] <... futex resumed>) = ? [pid 586] <... exit_group resumed>) = ? [pid 589] +++ exited with 0 +++ [pid 586] +++ exited with 0 +++ [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=586, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 293] ioctl(3, LOOP_CLR_FD [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 293] <... ioctl resumed>) = 0 [pid 293] close(3 [pid 291] <... openat resumed>) = 3 [pid 293] <... close resumed>) = 0 [pid 291] ioctl(3, LOOP_CLR_FD [pid 594] munmap(0x7f5626f3a000, 1048576) = 0 [pid 594] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 594] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 594] ioctl(4, LOOP_CLR_FD) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] <... ioctl resumed>) = 0 [pid 594] ioctl(4, LOOP_SET_FD, 3 [pid 291] close(3 [pid 594] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 594] close(4) = 0 [pid 594] close(3) = 0 [pid 594] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 593] <... futex resumed>) = 0 [pid 593] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 596 [pid 291] <... close resumed>) = 0 [pid 593] <... futex resumed>) = 0 [pid 593] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 594] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 597 [pid 594] <... open resumed>) = 3 [pid 594] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 593] <... futex resumed>) = 0 [pid 593] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 594] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 593] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 594] <... open resumed>) = 4 [pid 594] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 593] <... futex resumed>) = 0 [pid 593] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 594] ftruncate(4, 33587195 [pid 593] <... futex resumed>) = 0 [pid 593] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 594] <... ftruncate resumed>) = 0 [pid 587] <... mmap resumed>) = 0x20000000 [pid 594] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 593] <... futex resumed>) = 0 [pid 593] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 594] sendfile(3, 4, NULL, 4 [pid 593] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 597 attached [pid 597] set_robust_list(0x5555573645e0, 24) = 0 [pid 597] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 597] setpgid(0, 0 [pid 594] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 597] <... setpgid resumed>) = 0 [pid 594] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 597] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 594] <... futex resumed>) = 1 [pid 593] <... futex resumed>) = 0 [pid 597] <... openat resumed>) = 3 [pid 594] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 593] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 597] write(3, "1000", 4 [pid 593] <... futex resumed>) = 0 [pid 588] <... mmap resumed>) = 0x20000000 [pid 597] <... write resumed>) = 4 [pid 593] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 597] close(3) = 0 [pid 597] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 597] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 597] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 597] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[598], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 598 [pid 597] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 597] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 596 attached [pid 596] set_robust_list(0x5555573645e0, 24 [pid 587] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 584] <... futex resumed>) = 0 [pid 584] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 584] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 596] <... set_robust_list resumed>) = 0 [pid 591] <... mmap resumed>) = 0x20000000 [pid 587] <... futex resumed>) = 1 [pid 587] madvise(0x20000000, 6291467, MADV_REMOVE [pid 596] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 598 attached ) = 0 [pid 594] <... mmap resumed>) = 0x20000000 [pid 591] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 588] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 598] set_robust_list(0x7f562f35a9e0, 24 [pid 596] setpgid(0, 0 [pid 594] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 591] <... futex resumed>) = 1 [pid 588] <... futex resumed>) = 1 [pid 583] <... futex resumed>) = 0 [pid 582] <... futex resumed>) = 0 [pid 598] <... set_robust_list resumed>) = 0 [pid 596] <... setpgid resumed>) = 0 [pid 594] <... futex resumed>) = 1 [pid 593] <... futex resumed>) = 0 [pid 591] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 588] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 583] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 582] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 598] memfd_create("syzkaller", 0 [pid 596] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 594] madvise(0x20000000, 6291467, MADV_REMOVE [pid 593] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 583] <... futex resumed>) = 0 [pid 582] <... futex resumed>) = 0 [pid 598] <... memfd_create resumed>) = 3 [pid 596] <... openat resumed>) = 3 [pid 593] <... futex resumed>) = 0 [pid 591] madvise(0x20000000, 6291467, MADV_REMOVE [pid 588] madvise(0x20000000, 6291467, MADV_REMOVE [pid 583] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 582] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 598] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 596] write(3, "1000", 4 [pid 593] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 598] <... mmap resumed>) = 0x7f5626f3a000 [pid 596] <... write resumed>) = 4 [pid 598] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 596] close(3) = 0 [pid 596] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 596] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 596] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 596] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[599], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 599 [pid 596] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 596] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 599 attached [pid 599] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 599] memfd_create("syzkaller", 0 [pid 598] <... write resumed>) = 1048576 [pid 598] munmap(0x7f5626f3a000, 1048576 [pid 599] <... memfd_create resumed>) = 3 [pid 599] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 598] <... munmap resumed>) = 0 [pid 599] <... mmap resumed>) = 0x7f5626f3a000 [pid 598] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 598] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 598] ioctl(4, LOOP_CLR_FD) = 0 [pid 598] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 598] close(4 [pid 599] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 598] <... close resumed>) = 0 [pid 587] <... madvise resumed>) = 0 [pid 594] <... madvise resumed>) = 0 [pid 591] <... madvise resumed>) = 0 [pid 588] <... madvise resumed>) = 0 [pid 594] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 591] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 588] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 594] <... futex resumed>) = 1 [pid 593] <... futex resumed>) = 0 [pid 591] <... futex resumed>) = 1 [pid 588] <... futex resumed>) = 1 [pid 583] <... futex resumed>) = 0 [pid 582] <... futex resumed>) = 0 [pid 594] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 593] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 591] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 588] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 583] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 582] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 594] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 591] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 588] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 583] <... futex resumed>) = 0 [pid 582] <... futex resumed>) = 0 [pid 594] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 593] <... futex resumed>) = 0 [pid 591] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 588] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 583] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 582] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 594] <... openat resumed>) = 5 [pid 593] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 591] <... openat resumed>) = 5 [pid 588] <... openat resumed>) = 5 [pid 594] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 591] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 588] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 593] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 594] <... futex resumed>) = 0 [pid 591] <... futex resumed>) = 1 [pid 588] <... futex resumed>) = 1 [pid 583] <... futex resumed>) = 0 [pid 582] <... futex resumed>) = 0 [pid 594] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 591] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 588] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 583] exit_group(0 [pid 582] exit_group(0 [pid 593] exit_group(0 [pid 591] <... futex resumed>) = ? [pid 588] <... futex resumed>) = ? [pid 583] <... exit_group resumed>) = ? [pid 582] <... exit_group resumed>) = ? [pid 599] <... write resumed>) = 1048576 [pid 598] close(3 [pid 594] <... futex resumed>) = ? [pid 593] <... exit_group resumed>) = ? [pid 591] +++ exited with 0 +++ [pid 588] +++ exited with 0 +++ [pid 587] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 599] munmap(0x7f5626f3a000, 1048576 [pid 594] +++ exited with 0 +++ [pid 583] +++ exited with 0 +++ [pid 582] +++ exited with 0 +++ [pid 598] <... close resumed>) = 0 [pid 598] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 598] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 587] <... futex resumed>) = 1 [pid 587] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=583, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 597] <... futex resumed>) = 0 [pid 593] +++ exited with 0 +++ [pid 584] <... futex resumed>) = 0 [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=582, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 599] <... munmap resumed>) = 0 [pid 597] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 584] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=593, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 599] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 598] <... futex resumed>) = 0 [pid 597] <... futex resumed>) = 1 [pid 587] <... futex resumed>) = 0 [pid 584] <... futex resumed>) = 1 [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 599] <... openat resumed>) = 4 [pid 597] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 587] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 584] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] <... restart_syscall resumed>) = 0 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 292] <... restart_syscall resumed>) = 0 [pid 599] ioctl(4, LOOP_SET_FD, 3 [pid 587] <... openat resumed>) = 5 [pid 294] <... openat resumed>) = 3 [pid 599] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 587] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] ioctl(3, LOOP_CLR_FD [pid 599] ioctl(4, LOOP_CLR_FD [pid 587] <... futex resumed>) = 1 [pid 584] <... futex resumed>) = 0 [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 294] <... ioctl resumed>) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 599] <... ioctl resumed>) = 0 [pid 587] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 584] exit_group(0 [pid 295] <... openat resumed>) = 3 [pid 294] close(3 [pid 292] <... openat resumed>) = 3 [pid 587] <... futex resumed>) = ? [pid 584] <... exit_group resumed>) = ? [pid 295] ioctl(3, LOOP_CLR_FD [pid 294] <... close resumed>) = 0 [pid 292] ioctl(3, LOOP_CLR_FD [pid 587] +++ exited with 0 +++ [pid 584] +++ exited with 0 +++ [pid 295] <... ioctl resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... ioctl resumed>) = 0 [pid 599] ioctl(4, LOOP_SET_FD, 3 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=584, si_uid=0, si_status=0, si_utime=0, si_stime=6} --- [pid 295] close(3 [pid 292] close(3 [pid 599] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 295] <... close resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 600 [pid 292] <... close resumed>) = 0 [pid 599] close(4 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 599] <... close resumed>) = 0 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 599] close(3 [pid 296] <... openat resumed>) = 3 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 601 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 602 [pid 599] <... close resumed>) = 0 [pid 296] ioctl(3, LOOP_CLR_FD [pid 599] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... ioctl resumed>) = 0 [pid 599] <... futex resumed>) = 1 [pid 596] <... futex resumed>) = 0 [pid 296] close(3 [pid 599] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 596] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... close resumed>) = 0 [pid 599] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 596] <... futex resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 599] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 596] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 599] <... open resumed>) = 3 [pid 599] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 599] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 602 attached [pid 596] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 603 [pid 596] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 599] <... futex resumed>) = 0 [pid 596] <... futex resumed>) = 1 [pid 599] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 596] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 599] <... open resumed>) = 4 [pid 599] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 596] <... futex resumed>) = 0 [pid 599] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 596] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 599] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 596] <... futex resumed>) = 0 [pid 599] ftruncate(4, 33587195 [pid 596] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 599] <... ftruncate resumed>) = 0 [pid 599] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 596] <... futex resumed>) = 0 [pid 599] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 596] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 599] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 596] <... futex resumed>) = 0 [pid 599] sendfile(3, 4, NULL, 4 [pid 596] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 602] set_robust_list(0x5555573645e0, 24) = 0 [pid 599] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 599] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 596] <... futex resumed>) = 0 [pid 599] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 596] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 599] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 596] <... futex resumed>) = 0 [pid 599] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 596] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 598] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 602] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 598] <... open resumed>) = 3 [pid 602] <... prctl resumed>) = 0 [pid 602] setpgid(0, 0) = 0 [pid 602] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 602] write(3, "1000", 4) = 4 [pid 602] close(3) = 0 [pid 602] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 602] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 ./strace-static-x86_64: Process 600 attached [pid 602] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 600] set_robust_list(0x5555573645e0, 24 [pid 598] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 602] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 600] <... set_robust_list resumed>) = 0 [pid 598] <... futex resumed>) = 1 [pid 597] <... futex resumed>) = 0 [pid 600] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 597] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 602] <... clone resumed>, parent_tid=[604], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 604 [pid 600] <... prctl resumed>) = 0 [pid 597] <... futex resumed>) = 0 [pid 602] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 600] setpgid(0, 0 [pid 598] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 597] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 602] <... futex resumed>) = 0 [pid 600] <... setpgid resumed>) = 0 [pid 602] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 600] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 600] write(3, "1000", 4) = 4 [pid 600] close(3 [pid 598] <... open resumed>) = 4 [pid 600] <... close resumed>) = 0 [pid 600] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 600] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 598] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 600] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 598] <... futex resumed>) = 1 [pid 597] <... futex resumed>) = 0 [pid 600] <... mprotect resumed>) = 0 [pid 598] ftruncate(4, 33587195 [pid 597] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 603 attached ./strace-static-x86_64: Process 601 attached [pid 600] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 598] <... ftruncate resumed>) = 0 [pid 597] <... futex resumed>) = 0 [pid 598] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 597] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 600] <... clone resumed>, parent_tid=[605], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 605 [pid 597] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 598] <... futex resumed>) = 0 [pid 597] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 600] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 597] <... futex resumed>) = 0 [pid 598] sendfile(3, 4, NULL, 4 [pid 597] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 600] <... futex resumed>) = 0 [pid 600] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 598] <... sendfile resumed>) = -1 EINVAL (Invalid argument) ./strace-static-x86_64: Process 604 attached [pid 604] set_robust_list(0x7f562f35a9e0, 24 [pid 598] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 603] set_robust_list(0x5555573645e0, 24 [pid 597] <... futex resumed>) = 0 [pid 598] <... futex resumed>) = 1 [pid 603] <... set_robust_list resumed>) = 0 [pid 597] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 598] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 597] <... futex resumed>) = 0 [pid 597] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 605 attached [pid 604] <... set_robust_list resumed>) = 0 [pid 604] memfd_create("syzkaller", 0) = 3 [pid 604] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 603] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 603] setpgid(0, 0) = 0 [pid 603] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 601] set_robust_list(0x5555573645e0, 24 [pid 605] set_robust_list(0x7f562f35a9e0, 24 [pid 603] <... openat resumed>) = 3 [pid 601] <... set_robust_list resumed>) = 0 [pid 605] <... set_robust_list resumed>) = 0 [pid 605] memfd_create("syzkaller", 0 [pid 603] write(3, "1000", 4 [pid 605] <... memfd_create resumed>) = 3 [pid 603] <... write resumed>) = 4 [pid 601] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 603] close(3 [pid 601] <... prctl resumed>) = 0 [pid 605] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 603] <... close resumed>) = 0 [pid 601] setpgid(0, 0 [pid 603] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 601] <... setpgid resumed>) = 0 [pid 603] <... futex resumed>) = 0 [pid 601] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 603] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 603] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 601] <... openat resumed>) = 3 [pid 603] <... mprotect resumed>) = 0 [pid 604] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 603] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 601] write(3, "1000", 4) = 4 [pid 603] <... clone resumed>, parent_tid=[606], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 606 [pid 601] close(3 [pid 603] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 601] <... close resumed>) = 0 [pid 603] <... futex resumed>) = 0 [pid 601] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 603] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 601] <... futex resumed>) = 0 [pid 601] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 601] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 605] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 601] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[607], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 607 [pid 601] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 601] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 607 attached [pid 607] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 607] memfd_create("syzkaller", 0) = 3 [pid 607] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 604] <... write resumed>) = 1048576 [pid 599] <... mmap resumed>) = 0x20000000 ./strace-static-x86_64: Process 606 attached [pid 606] set_robust_list(0x7f562f35a9e0, 24 [pid 605] <... write resumed>) = 1048576 [pid 604] munmap(0x7f5626f3a000, 1048576 [pid 599] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 598] <... mmap resumed>) = 0x20000000 [pid 607] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 606] <... set_robust_list resumed>) = 0 [pid 605] munmap(0x7f5626f3a000, 1048576 [pid 604] <... munmap resumed>) = 0 [pid 599] <... futex resumed>) = 1 [pid 598] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 596] <... futex resumed>) = 0 [pid 606] memfd_create("syzkaller", 0 [pid 605] <... munmap resumed>) = 0 [pid 604] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 599] madvise(0x20000000, 6291467, MADV_REMOVE [pid 598] <... futex resumed>) = 1 [pid 597] <... futex resumed>) = 0 [pid 596] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 607] <... write resumed>) = 1048576 [pid 606] <... memfd_create resumed>) = 3 [pid 605] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 604] <... openat resumed>) = 4 [pid 596] <... futex resumed>) = 0 [pid 607] munmap(0x7f5626f3a000, 1048576 [pid 596] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 607] <... munmap resumed>) = 0 [pid 606] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 598] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 597] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 605] <... openat resumed>) = 4 [pid 604] ioctl(4, LOOP_SET_FD, 3 [pid 607] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 607] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 607] ioctl(4, LOOP_CLR_FD) = 0 [pid 606] <... mmap resumed>) = 0x7f5626f3a000 [pid 605] ioctl(4, LOOP_SET_FD, 3 [pid 604] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 598] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 597] <... futex resumed>) = 0 [pid 598] madvise(0x20000000, 6291467, MADV_REMOVE [pid 607] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 607] close(4) = 0 [pid 607] close(3) = 0 [pid 607] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 601] <... futex resumed>) = 0 [pid 607] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 601] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 607] <... open resumed>) = 3 [pid 601] <... futex resumed>) = 0 [pid 607] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 601] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 607] <... futex resumed>) = 0 [pid 601] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 607] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 601] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 607] <... open resumed>) = 4 [pid 601] <... futex resumed>) = 0 [pid 607] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 601] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 607] <... futex resumed>) = 0 [pid 601] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 607] ftruncate(4, 33587195 [pid 601] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 601] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 597] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 605] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 604] ioctl(4, LOOP_CLR_FD [pid 605] ioctl(4, LOOP_CLR_FD [pid 604] <... ioctl resumed>) = 0 [pid 605] <... ioctl resumed>) = 0 [pid 606] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 605] ioctl(4, LOOP_SET_FD, 3 [pid 604] ioctl(4, LOOP_SET_FD, 3 [pid 605] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 604] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 605] close(4 [pid 604] close(4 [pid 605] <... close resumed>) = 0 [pid 604] <... close resumed>) = 0 [pid 605] close(3 [pid 604] close(3 [pid 605] <... close resumed>) = 0 [pid 604] <... close resumed>) = 0 [pid 605] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 607] <... ftruncate resumed>) = 0 [pid 605] <... futex resumed>) = 1 [pid 604] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 600] <... futex resumed>) = 0 [pid 598] <... madvise resumed>) = 0 [pid 607] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 600] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 598] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 605] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 604] <... futex resumed>) = 1 [pid 607] <... futex resumed>) = 1 [pid 602] <... futex resumed>) = 0 [pid 601] <... futex resumed>) = 0 [pid 600] <... futex resumed>) = 0 [pid 598] <... futex resumed>) = 1 [pid 597] <... futex resumed>) = 0 [pid 597] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 607] sendfile(3, 4, NULL, 4 [pid 605] <... open resumed>) = 3 [pid 604] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 602] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 601] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 600] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 598] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 597] <... futex resumed>) = 0 [pid 597] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 605] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 604] <... open resumed>) = 3 [pid 602] <... futex resumed>) = 0 [pid 601] <... futex resumed>) = 0 [pid 598] <... openat resumed>) = 5 [pid 602] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 601] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 598] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 605] <... futex resumed>) = 1 [pid 600] <... futex resumed>) = 0 [pid 598] <... futex resumed>) = 1 [pid 597] <... futex resumed>) = 0 [pid 605] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 600] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 598] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 597] exit_group(0 [pid 605] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 600] <... futex resumed>) = 0 [pid 598] <... futex resumed>) = ? [pid 597] <... exit_group resumed>) = ? [pid 605] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 600] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 607] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 605] <... open resumed>) = 4 [pid 604] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 598] +++ exited with 0 +++ [pid 597] +++ exited with 0 +++ [pid 607] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 605] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=597, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 607] <... futex resumed>) = 1 [pid 605] <... futex resumed>) = 1 [pid 604] <... futex resumed>) = 1 [pid 602] <... futex resumed>) = 0 [pid 601] <... futex resumed>) = 0 [pid 600] <... futex resumed>) = 0 [pid 607] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 605] ftruncate(4, 33587195 [pid 604] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 602] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 601] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 600] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 607] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 602] <... futex resumed>) = 0 [pid 601] <... futex resumed>) = 0 [pid 600] <... futex resumed>) = 0 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 607] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 605] <... ftruncate resumed>) = 0 [pid 604] <... open resumed>) = 4 [pid 602] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 601] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 600] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] <... openat resumed>) = 3 [pid 606] <... write resumed>) = 1048576 [pid 291] ioctl(3, LOOP_CLR_FD) = 0 [pid 291] close(3 [pid 605] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 604] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] <... close resumed>) = 0 [pid 605] <... futex resumed>) = 1 [pid 604] <... futex resumed>) = 1 [pid 602] <... futex resumed>) = 0 [pid 600] <... futex resumed>) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 606] munmap(0x7f5626f3a000, 1048576 [pid 605] sendfile(3, 4, NULL, 4 [pid 604] ftruncate(4, 33587195 [pid 602] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 600] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 602] <... futex resumed>) = 0 [pid 600] <... futex resumed>) = 0 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 608 [pid 602] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 600] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 605] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 605] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 600] <... futex resumed>) = 0 [pid 600] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 605] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 600] <... futex resumed>) = 0 [pid 600] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 599] <... madvise resumed>) = 0 [pid 599] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 596] <... futex resumed>) = 0 [pid 596] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 596] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 599] <... futex resumed>) = 1 ./strace-static-x86_64: Process 608 attached [pid 608] set_robust_list(0x5555573645e0, 24) = 0 [pid 608] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 608] setpgid(0, 0 [pid 604] <... ftruncate resumed>) = 0 [pid 599] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 604] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 602] <... futex resumed>) = 0 [pid 604] sendfile(3, 4, NULL, 4 [pid 602] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 602] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 599] <... openat resumed>) = 5 [pid 599] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 596] <... futex resumed>) = 0 [pid 599] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 596] exit_group(0 [pid 599] <... futex resumed>) = ? [pid 596] <... exit_group resumed>) = ? [pid 604] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 604] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 602] <... futex resumed>) = 0 [pid 604] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 602] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 604] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 602] <... futex resumed>) = 0 [pid 604] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 602] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 599] +++ exited with 0 +++ [pid 596] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=596, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 293] ioctl(3, LOOP_CLR_FD) = 0 [pid 293] close(3) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 609 [pid 606] <... munmap resumed>) = 0 [pid 608] <... setpgid resumed>) = 0 [pid 608] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 606] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 608] write(3, "1000", 4) = 4 [pid 608] close(3) = 0 [pid 608] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 608] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 606] <... openat resumed>) = 4 [pid 606] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 606] ioctl(4, LOOP_CLR_FD) = 0 [pid 608] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 608] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[610], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 610 [pid 608] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 608] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 606] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 606] close(4) = 0 [pid 606] close(3./strace-static-x86_64: Process 609 attached [pid 609] set_robust_list(0x5555573645e0, 24) = 0 [pid 609] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 609] setpgid(0, 0) = 0 [pid 609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 609] write(3, "1000", 4) = 4 [pid 609] close(3) = 0 [pid 609] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 609] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 609] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 609] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[611], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 611 [pid 609] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 609] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 610 attached [pid 610] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 610] memfd_create("syzkaller", 0) = 3 [pid 610] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 606] <... close resumed>) = 0 [pid 606] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 603] <... futex resumed>) = 0 ./strace-static-x86_64: Process 611 attached [pid 603] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 611] set_robust_list(0x7f562f35a9e0, 24 [pid 603] <... futex resumed>) = 0 [pid 611] <... set_robust_list resumed>) = 0 [pid 603] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 611] memfd_create("syzkaller", 0) = 3 [pid 606] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 606] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 603] <... futex resumed>) = 0 [pid 611] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 603] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 606] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 603] <... futex resumed>) = 0 [pid 611] <... mmap resumed>) = 0x7f5626f3a000 [pid 606] <... open resumed>) = 4 [pid 603] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 606] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 603] <... futex resumed>) = 0 [pid 606] ftruncate(4, 33587195 [pid 603] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 610] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 606] <... ftruncate resumed>) = 0 [pid 603] <... futex resumed>) = 0 [pid 606] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 603] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 606] <... futex resumed>) = 0 [pid 603] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 606] sendfile(3, 4, NULL, 4 [pid 603] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 606] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 603] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 606] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 603] <... futex resumed>) = 0 [pid 606] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 603] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 603] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 607] <... mmap resumed>) = 0x20000000 [pid 607] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 601] <... futex resumed>) = 0 [pid 601] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 601] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 607] <... futex resumed>) = 1 [pid 607] madvise(0x20000000, 6291467, MADV_REMOVE [pid 611] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 605] <... mmap resumed>) = 0x20000000 [pid 610] <... write resumed>) = 1048576 [pid 605] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 600] <... futex resumed>) = 0 [pid 600] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 600] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 605] madvise(0x20000000, 6291467, MADV_REMOVE [pid 604] <... mmap resumed>) = 0x20000000 [pid 610] munmap(0x7f5626f3a000, 1048576) = 0 [pid 604] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 610] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 604] <... futex resumed>) = 1 [pid 602] <... futex resumed>) = 0 [pid 610] ioctl(4, LOOP_SET_FD, 3 [pid 604] madvise(0x20000000, 6291467, MADV_REMOVE [pid 602] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 610] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 602] <... futex resumed>) = 0 [pid 610] ioctl(4, LOOP_CLR_FD [pid 602] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 610] <... ioctl resumed>) = 0 [pid 606] <... mmap resumed>) = 0x20000000 [pid 611] <... write resumed>) = 1048576 [pid 611] munmap(0x7f5626f3a000, 1048576) = 0 [pid 611] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 4 [pid 611] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 611] ioctl(4, LOOP_CLR_FD) = 0 [pid 610] ioctl(4, LOOP_SET_FD, 3 [pid 606] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 610] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 610] close(4) = 0 [pid 610] close(3 [pid 611] ioctl(4, LOOP_SET_FD, 3 [pid 610] <... close resumed>) = 0 [pid 606] <... futex resumed>) = 1 [pid 603] <... futex resumed>) = 0 [pid 603] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 611] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 603] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 611] close(4) = 0 [pid 611] close(3) = 0 [pid 606] madvise(0x20000000, 6291467, MADV_REMOVE [pid 610] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 608] <... futex resumed>) = 0 [pid 608] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 608] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 610] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 610] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 608] <... futex resumed>) = 0 [pid 608] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 608] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 610] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 611] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 610] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 611] <... futex resumed>) = 1 [pid 610] <... futex resumed>) = 1 [pid 609] <... futex resumed>) = 0 [pid 608] <... futex resumed>) = 0 [pid 611] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 610] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 609] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 608] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 611] <... open resumed>) = 3 [pid 610] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 609] <... futex resumed>) = 0 [pid 608] <... futex resumed>) = 0 [pid 611] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 610] ftruncate(4, 33587195 [pid 609] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 608] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 611] <... futex resumed>) = 0 [pid 609] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 611] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 609] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 611] <... open resumed>) = 4 [pid 609] <... futex resumed>) = 0 [pid 611] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 609] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 611] <... futex resumed>) = 0 [pid 609] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 611] ftruncate(4, 33587195 [pid 609] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 609] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 607] <... madvise resumed>) = 0 [pid 607] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 601] <... futex resumed>) = 0 [pid 601] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 601] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 607] <... futex resumed>) = 1 [pid 607] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5 [pid 607] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 601] <... futex resumed>) = 0 [pid 601] exit_group(0) = ? [pid 607] <... futex resumed>) = ? [pid 610] <... ftruncate resumed>) = 0 [pid 606] <... madvise resumed>) = 0 [pid 611] <... ftruncate resumed>) = 0 [pid 606] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 605] <... madvise resumed>) = 0 [pid 611] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 610] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 605] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 611] <... futex resumed>) = 1 [pid 610] <... futex resumed>) = 1 [pid 609] <... futex resumed>) = 0 [pid 608] <... futex resumed>) = 0 [pid 605] <... futex resumed>) = 1 [pid 600] <... futex resumed>) = 0 [pid 611] sendfile(3, 4, NULL, 4 [pid 610] sendfile(3, 4, NULL, 4 [pid 609] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 608] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 606] <... futex resumed>) = 1 [pid 605] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 603] <... futex resumed>) = 0 [pid 600] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 609] <... futex resumed>) = 0 [pid 608] <... futex resumed>) = 0 [pid 606] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 605] <... openat resumed>) = 5 [pid 603] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 600] <... futex resumed>) = 0 [pid 609] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 608] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 605] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 600] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 605] <... futex resumed>) = 0 [pid 600] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 605] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 600] exit_group(0 [pid 605] <... futex resumed>) = ? [pid 600] <... exit_group resumed>) = ? [pid 607] +++ exited with 0 +++ [pid 606] <... openat resumed>) = 5 [pid 603] <... futex resumed>) = 0 [pid 601] +++ exited with 0 +++ [pid 606] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 603] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 606] <... futex resumed>) = 0 [pid 603] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=601, si_uid=0, si_status=0, si_utime=0, si_stime=5} --- [pid 606] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 603] exit_group(0 [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 606] <... futex resumed>) = ? [pid 603] <... exit_group resumed>) = ? [pid 610] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 605] +++ exited with 0 +++ [pid 600] +++ exited with 0 +++ [pid 610] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=600, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 610] <... futex resumed>) = 1 [pid 608] <... futex resumed>) = 0 [pid 610] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 608] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 606] +++ exited with 0 +++ [pid 603] +++ exited with 0 +++ [pid 295] <... restart_syscall resumed>) = 0 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=603, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 296] <... openat resumed>) = 3 [pid 295] <... openat resumed>) = 3 [pid 296] ioctl(3, LOOP_CLR_FD [pid 295] ioctl(3, LOOP_CLR_FD [pid 296] <... ioctl resumed>) = 0 [pid 295] <... ioctl resumed>) = 0 [pid 296] close(3 [pid 295] close(3 [pid 296] <... close resumed>) = 0 [pid 295] <... close resumed>) = 0 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 612 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 613 [pid 611] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 608] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... openat resumed>) = 3 [pid 611] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] ioctl(3, LOOP_CLR_FD [pid 611] <... futex resumed>) = 1 [pid 609] <... futex resumed>) = 0 [pid 294] <... ioctl resumed>) = 0 [pid 611] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 609] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] close(3 [pid 611] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 609] <... futex resumed>) = 0 [pid 294] <... close resumed>) = 0 [pid 611] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 609] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 614 ./strace-static-x86_64: Process 613 attached [pid 613] set_robust_list(0x5555573645e0, 24) = 0 [pid 613] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 613] setpgid(0, 0) = 0 ./strace-static-x86_64: Process 614 attached [pid 614] set_robust_list(0x5555573645e0, 24 [pid 613] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 614] <... set_robust_list resumed>) = 0 [pid 602] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 614] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 602] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}./strace-static-x86_64: Process 612 attached [pid 614] <... prctl resumed>) = 0 [pid 602] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 614] setpgid(0, 0 [pid 602] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 612] set_robust_list(0x5555573645e0, 24 [pid 614] <... setpgid resumed>) = 0 [pid 602] <... futex resumed>) = 0 [pid 612] <... set_robust_list resumed>) = 0 [pid 602] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 612] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 602] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 602] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[615], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 615 [pid 614] <... openat resumed>) = 3 [pid 612] <... prctl resumed>) = 0 [pid 602] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 614] write(3, "1000", 4 [pid 612] setpgid(0, 0 [pid 602] <... futex resumed>) = 0 [pid 614] <... write resumed>) = 4 [pid 612] <... setpgid resumed>) = 0 [pid 602] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 614] close(3 [pid 612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 614] <... close resumed>) = 0 [pid 614] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 612] <... openat resumed>) = 3 [pid 614] <... futex resumed>) = 0 [pid 612] write(3, "1000", 4 [pid 614] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 612] <... write resumed>) = 4 [pid 614] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 612] close(3 [pid 614] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 612] <... close resumed>) = 0 [pid 612] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 614] <... clone resumed>, parent_tid=[616], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 616 [pid 612] <... futex resumed>) = 0 [pid 614] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 612] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 614] <... futex resumed>) = 0 [pid 612] <... mmap resumed>) = 0x7f562f33a000 [pid 614] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 612] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 612] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 613] <... openat resumed>) = 3 [pid 613] write(3, "1000", 4) = 4 [pid 613] close(3) = 0 [pid 613] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 613] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 613] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 613] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 612] <... clone resumed>, parent_tid=[617], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 617 [pid 612] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 612] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 613] <... clone resumed>, parent_tid=[618], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 618 [pid 613] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 613] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 617 attached ./strace-static-x86_64: Process 616 attached [pid 611] <... mmap resumed>) = 0x20000000 [pid 604] <... madvise resumed>) = 0 [pid 617] set_robust_list(0x7f562f35a9e0, 24 [pid 616] set_robust_list(0x7f562f35a9e0, 24 [pid 611] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 604] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 617] <... set_robust_list resumed>) = 0 [pid 616] <... set_robust_list resumed>) = 0 [pid 611] <... futex resumed>) = 1 [pid 609] <... futex resumed>) = 0 [pid 604] <... futex resumed>) = 0 [pid 616] memfd_create("syzkaller", 0 [pid 611] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 609] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 604] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 617] memfd_create("syzkaller", 0 [pid 616] <... memfd_create resumed>) = 3 [pid 611] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 609] <... futex resumed>) = 0 [pid 617] <... memfd_create resumed>) = 3 [pid 616] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 611] madvise(0x20000000, 6291467, MADV_REMOVE [pid 609] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 615 attached [pid 616] <... mmap resumed>) = 0x7f5626f3a000 ./strace-static-x86_64: Process 618 attached [pid 615] set_robust_list(0x7f56270399e0, 24 [pid 618] set_robust_list(0x7f562f35a9e0, 24 [pid 615] <... set_robust_list resumed>) = 0 [pid 618] <... set_robust_list resumed>) = 0 [pid 618] memfd_create("syzkaller", 0) = 3 [pid 618] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 617] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 615] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 611] <... madvise resumed>) = 0 [pid 615] <... openat resumed>) = 5 [pid 617] <... mmap resumed>) = 0x7f5626f3a000 [pid 615] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 602] <... futex resumed>) = 0 [pid 615] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 602] exit_group(0 [pid 615] <... futex resumed>) = ? [pid 604] <... futex resumed>) = ? [pid 602] <... exit_group resumed>) = ? [pid 615] +++ exited with 0 +++ [pid 604] +++ exited with 0 +++ [pid 602] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=602, si_uid=0, si_status=0, si_utime=0, si_stime=4} --- [pid 616] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 611] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 610] <... mmap resumed>) = 0x20000000 [pid 292] <... openat resumed>) = 3 [pid 611] <... futex resumed>) = 1 [pid 610] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 609] <... futex resumed>) = 0 [pid 292] ioctl(3, LOOP_CLR_FD [pid 611] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 610] <... futex resumed>) = 1 [pid 609] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 608] <... futex resumed>) = 0 [pid 292] <... ioctl resumed>) = 0 [pid 611] <... openat resumed>) = 5 [pid 610] madvise(0x20000000, 6291467, MADV_REMOVE [pid 609] <... futex resumed>) = 0 [pid 608] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] close(3 [pid 611] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 609] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 608] <... futex resumed>) = 0 [pid 617] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 610] <... madvise resumed>) = 0 [pid 292] <... close resumed>) = 0 [pid 617] <... write resumed>) = 1048576 [pid 616] <... write resumed>) = 1048576 [pid 611] <... futex resumed>) = 0 [pid 610] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 609] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 608] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 618] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 616] munmap(0x7f5626f3a000, 1048576 [pid 611] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 610] <... futex resumed>) = 0 [pid 609] exit_group(0 [pid 608] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 617] munmap(0x7f5626f3a000, 1048576) = 0 [pid 617] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 617] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 617] ioctl(4, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 619 attached [pid 619] set_robust_list(0x5555573645e0, 24) = 0 [pid 619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 619] setpgid(0, 0 [pid 617] ioctl(4, LOOP_SET_FD, 3 [pid 619] <... setpgid resumed>) = 0 [pid 618] <... write resumed>) = 1048576 [pid 617] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 616] <... munmap resumed>) = 0 [pid 610] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 609] <... exit_group resumed>) = ? [pid 608] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 611] <... futex resumed>) = ? [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 619 [pid 619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 618] munmap(0x7f5626f3a000, 1048576 [pid 617] close(4 [pid 616] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 610] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 608] <... futex resumed>) = 0 [pid 619] <... openat resumed>) = 3 [pid 618] <... munmap resumed>) = 0 [pid 617] <... close resumed>) = 0 [pid 616] <... openat resumed>) = 4 [pid 611] +++ exited with 0 +++ [pid 610] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 609] +++ exited with 0 +++ [pid 608] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 619] write(3, "1000", 4 [pid 618] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 617] close(3 [pid 616] ioctl(4, LOOP_SET_FD, 3 [pid 610] <... openat resumed>) = 5 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=609, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 618] <... openat resumed>) = 4 [pid 616] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 610] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] restart_syscall(<... resuming interrupted clone ...> [pid 618] ioctl(4, LOOP_SET_FD, 3 [pid 616] ioctl(4, LOOP_CLR_FD [pid 610] <... futex resumed>) = 1 [pid 608] <... futex resumed>) = 0 [pid 293] <... restart_syscall resumed>) = 0 [pid 619] <... write resumed>) = 4 [pid 618] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 616] <... ioctl resumed>) = 0 [pid 610] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 608] exit_group(0 [pid 619] close(3 [pid 618] ioctl(4, LOOP_CLR_FD [pid 617] <... close resumed>) = 0 [pid 610] <... futex resumed>) = ? [pid 608] <... exit_group resumed>) = ? [pid 619] <... close resumed>) = 0 [pid 618] <... ioctl resumed>) = 0 [pid 617] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 610] +++ exited with 0 +++ [pid 608] +++ exited with 0 +++ [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 619] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 617] <... futex resumed>) = 1 [pid 616] ioctl(4, LOOP_SET_FD, 3 [pid 612] <... futex resumed>) = 0 [pid 293] <... openat resumed>) = 3 [pid 619] <... futex resumed>) = 0 [pid 617] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 616] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 612] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] ioctl(3, LOOP_CLR_FD [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=608, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 616] close(4 [pid 612] <... futex resumed>) = 0 [pid 293] <... ioctl resumed>) = 0 [pid 291] restart_syscall(<... resuming interrupted clone ...> [pid 619] <... mmap resumed>) = 0x7f562f33a000 [pid 617] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 616] <... close resumed>) = 0 [pid 612] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 293] close(3 [pid 291] <... restart_syscall resumed>) = 0 [pid 619] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 618] ioctl(4, LOOP_SET_FD, 3 [pid 617] <... open resumed>) = 3 [pid 616] close(3 [pid 293] <... close resumed>) = 0 [pid 619] <... mprotect resumed>) = 0 [pid 618] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 617] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 616] <... close resumed>) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 619] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 618] close(4 [pid 617] <... futex resumed>) = 1 [pid 616] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 612] <... futex resumed>) = 0 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 618] <... close resumed>) = 0 [pid 617] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 616] <... futex resumed>) = 1 [pid 614] <... futex resumed>) = 0 [pid 612] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 620 [pid 291] <... openat resumed>) = 3 [pid 619] <... clone resumed>, parent_tid=[621], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 621 [pid 618] close(3 [pid 617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 616] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 614] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 612] <... futex resumed>) = 0 [pid 291] ioctl(3, LOOP_CLR_FD [pid 619] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 618] <... close resumed>) = 0 [pid 617] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 614] <... futex resumed>) = 0 [pid 612] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] <... ioctl resumed>) = 0 [pid 619] <... futex resumed>) = 0 [pid 618] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 617] <... open resumed>) = 4 [pid 616] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 614] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] close(3 [pid 618] <... futex resumed>) = 1 [pid 616] <... open resumed>) = 3 [pid 291] <... close resumed>) = 0 [pid 618] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 616] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 616] <... futex resumed>) = 1 [pid 614] <... futex resumed>) = 0 [pid 616] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 614] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 622 [pid 616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 614] <... futex resumed>) = 0 [pid 616] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 614] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 616] <... open resumed>) = 4 [pid 616] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 614] <... futex resumed>) = 0 [pid 616] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 614] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 614] <... futex resumed>) = 0 [pid 616] ftruncate(4, 33587195 [pid 614] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 616] <... ftruncate resumed>) = 0 [pid 616] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 614] <... futex resumed>) = 0 [pid 619] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 617] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 616] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 614] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 613] <... futex resumed>) = 0 [pid 617] <... futex resumed>) = 1 [pid 616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 614] <... futex resumed>) = 0 [pid 613] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 612] <... futex resumed>) = 0 [pid 618] <... futex resumed>) = 0 [pid 617] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 616] sendfile(3, 4, NULL, 4 [pid 614] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 613] <... futex resumed>) = 1 [pid 612] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000./strace-static-x86_64: Process 620 attached [pid 618] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 613] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 612] <... futex resumed>) = 0 [pid 620] set_robust_list(0x5555573645e0, 24 [pid 618] <... open resumed>) = 3 [pid 617] ftruncate(4, 33587195 [pid 616] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 612] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 621 attached [pid 620] <... set_robust_list resumed>) = 0 [pid 618] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 617] <... ftruncate resumed>) = 0 [pid 616] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 621] set_robust_list(0x7f562f35a9e0, 24 [pid 620] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 618] <... futex resumed>) = 1 [pid 617] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 616] <... futex resumed>) = 1 [pid 614] <... futex resumed>) = 0 [pid 613] <... futex resumed>) = 0 ./strace-static-x86_64: Process 622 attached [pid 621] <... set_robust_list resumed>) = 0 [pid 620] <... prctl resumed>) = 0 [pid 618] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 617] <... futex resumed>) = 1 [pid 616] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 614] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 613] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 612] <... futex resumed>) = 0 [pid 622] set_robust_list(0x5555573645e0, 24 [pid 621] memfd_create("syzkaller", 0 [pid 620] setpgid(0, 0 [pid 618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 617] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 614] <... futex resumed>) = 0 [pid 613] <... futex resumed>) = 0 [pid 612] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 622] <... set_robust_list resumed>) = 0 [pid 621] <... memfd_create resumed>) = 3 [pid 620] <... setpgid resumed>) = 0 [pid 618] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 616] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 614] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 613] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 612] <... futex resumed>) = 0 [pid 622] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 621] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 618] <... open resumed>) = 4 [pid 617] sendfile(3, 4, NULL, 4 [pid 612] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 622] <... prctl resumed>) = 0 [pid 621] <... mmap resumed>) = 0x7f5626f3a000 [pid 620] <... openat resumed>) = 3 [pid 618] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 617] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 622] setpgid(0, 0 [pid 620] write(3, "1000", 4 [pid 618] <... futex resumed>) = 1 [pid 617] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 613] <... futex resumed>) = 0 [pid 622] <... setpgid resumed>) = 0 [pid 620] <... write resumed>) = 4 [pid 618] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 617] <... futex resumed>) = 1 [pid 613] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 612] <... futex resumed>) = 0 [pid 622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 620] close(3 [pid 618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 617] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 613] <... futex resumed>) = 0 [pid 612] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 622] <... openat resumed>) = 3 [pid 620] <... close resumed>) = 0 [pid 618] ftruncate(4, 33587195 [pid 617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 613] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 612] <... futex resumed>) = 0 [pid 622] write(3, "1000", 4 [pid 620] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 617] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 612] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 622] <... write resumed>) = 4 [pid 620] <... futex resumed>) = 0 [pid 618] <... ftruncate resumed>) = 0 [pid 622] close(3 [pid 620] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 618] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 622] <... close resumed>) = 0 [pid 620] <... mmap resumed>) = 0x7f562f33a000 [pid 618] <... futex resumed>) = 1 [pid 622] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 620] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 618] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 622] <... futex resumed>) = 0 [pid 620] <... mprotect resumed>) = 0 [pid 622] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 620] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 622] <... mmap resumed>) = 0x7f562f33a000 [pid 622] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 620] <... clone resumed>, parent_tid=[623], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 623 [pid 622] <... mprotect resumed>) = 0 [pid 620] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 613] <... futex resumed>) = 0 [pid 621] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 622] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 620] <... futex resumed>) = 0 [pid 613] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 620] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 618] <... futex resumed>) = 0 [pid 613] <... futex resumed>) = 1 ./strace-static-x86_64: Process 624 attached ./strace-static-x86_64: Process 623 attached [pid 622] <... clone resumed>, parent_tid=[624], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 624 [pid 621] <... write resumed>) = 1048576 [pid 618] sendfile(3, 4, NULL, 4 [pid 613] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 624] set_robust_list(0x7f562f35a9e0, 24 [pid 623] set_robust_list(0x7f562f35a9e0, 24 [pid 622] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 621] munmap(0x7f5626f3a000, 1048576 [pid 618] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 624] <... set_robust_list resumed>) = 0 [pid 623] <... set_robust_list resumed>) = 0 [pid 622] <... futex resumed>) = 0 [pid 621] <... munmap resumed>) = 0 [pid 618] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 624] memfd_create("syzkaller", 0 [pid 623] memfd_create("syzkaller", 0 [pid 622] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 621] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 618] <... futex resumed>) = 1 [pid 613] <... futex resumed>) = 0 [pid 624] <... memfd_create resumed>) = 3 [pid 623] <... memfd_create resumed>) = 3 [pid 621] <... openat resumed>) = 4 [pid 618] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 613] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 624] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 623] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 621] ioctl(4, LOOP_SET_FD, 3 [pid 618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 613] <... futex resumed>) = 0 [pid 624] <... mmap resumed>) = 0x7f5626f3a000 [pid 623] <... mmap resumed>) = 0x7f5626f3a000 [pid 621] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 618] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 613] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 624] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 623] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 621] ioctl(4, LOOP_CLR_FD [pid 617] <... mmap resumed>) = 0x20000000 [pid 616] <... mmap resumed>) = 0x20000000 [pid 621] <... ioctl resumed>) = 0 [pid 618] <... mmap resumed>) = 0x20000000 [pid 617] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 616] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 618] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 617] <... futex resumed>) = 1 [pid 616] <... futex resumed>) = 1 [pid 614] <... futex resumed>) = 0 [pid 612] <... futex resumed>) = 0 [pid 624] <... write resumed>) = 1048576 [pid 623] <... write resumed>) = 1048576 [pid 618] <... futex resumed>) = 1 [pid 617] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 616] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 614] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 613] <... futex resumed>) = 0 [pid 612] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 616] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 614] <... futex resumed>) = 0 [pid 617] madvise(0x20000000, 6291467, MADV_REMOVE [pid 616] madvise(0x20000000, 6291467, MADV_REMOVE [pid 614] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 624] munmap(0x7f5626f3a000, 1048576 [pid 623] munmap(0x7f5626f3a000, 1048576 [pid 618] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 613] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 612] <... futex resumed>) = 0 [pid 624] <... munmap resumed>) = 0 [pid 623] <... munmap resumed>) = 0 [pid 621] ioctl(4, LOOP_SET_FD, 3 [pid 618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 613] <... futex resumed>) = 0 [pid 612] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 624] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 623] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 621] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 618] madvise(0x20000000, 6291467, MADV_REMOVE [pid 613] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 624] <... openat resumed>) = 4 [pid 623] <... openat resumed>) = 4 [pid 621] close(4 [pid 624] ioctl(4, LOOP_SET_FD, 3 [pid 623] ioctl(4, LOOP_SET_FD, 3 [pid 621] <... close resumed>) = 0 [pid 617] <... madvise resumed>) = 0 [pid 616] <... madvise resumed>) = 0 [pid 621] close(3 [pid 618] <... madvise resumed>) = 0 [pid 617] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 616] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 617] <... futex resumed>) = 1 [pid 612] <... futex resumed>) = 0 [pid 617] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 616] <... futex resumed>) = 1 [pid 614] <... futex resumed>) = 0 [pid 612] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 617] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 616] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 614] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 612] <... futex resumed>) = 0 [pid 617] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 616] <... openat resumed>) = 5 [pid 614] <... futex resumed>) = 0 [pid 612] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 617] <... openat resumed>) = 5 [pid 616] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 614] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 617] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 616] <... futex resumed>) = 0 [pid 614] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 617] <... futex resumed>) = 1 [pid 616] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 614] exit_group(0 [pid 612] <... futex resumed>) = 0 [pid 617] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 616] <... futex resumed>) = ? [pid 614] <... exit_group resumed>) = ? [pid 612] exit_group(0 [pid 621] <... close resumed>) = 0 [pid 618] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 617] <... futex resumed>) = ? [pid 612] <... exit_group resumed>) = ? [pid 624] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 623] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 621] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 618] <... futex resumed>) = 1 [pid 617] +++ exited with 0 +++ [pid 616] +++ exited with 0 +++ [pid 614] +++ exited with 0 +++ [pid 613] <... futex resumed>) = 0 [pid 624] ioctl(4, LOOP_CLR_FD [pid 623] ioctl(4, LOOP_CLR_FD [pid 621] <... futex resumed>) = 1 [pid 619] <... futex resumed>) = 0 [pid 618] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 613] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 612] +++ exited with 0 +++ [pid 624] <... ioctl resumed>) = 0 [pid 621] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 619] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 618] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 613] <... futex resumed>) = 0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=612, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=614, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 621] <... open resumed>) = 3 [pid 619] <... futex resumed>) = 0 [pid 618] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 613] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 621] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 619] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] <... restart_syscall resumed>) = 0 [pid 621] <... futex resumed>) = 0 [pid 619] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 618] <... openat resumed>) = 5 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 621] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 619] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 618] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... openat resumed>) = 3 [pid 621] <... open resumed>) = 4 [pid 619] <... futex resumed>) = 0 [pid 294] ioctl(3, LOOP_CLR_FD [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 621] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 619] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 618] <... futex resumed>) = 1 [pid 613] <... futex resumed>) = 0 [pid 294] <... ioctl resumed>) = 0 [pid 621] <... futex resumed>) = 0 [pid 619] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 296] <... openat resumed>) = 3 [pid 294] close(3 [pid 621] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 619] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 618] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 613] exit_group(0 [pid 296] ioctl(3, LOOP_CLR_FD [pid 294] <... close resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 625 ./strace-static-x86_64: Process 625 attached [pid 625] set_robust_list(0x5555573645e0, 24) = 0 [pid 625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 625] setpgid(0, 0) = 0 [pid 625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 625] write(3, "1000", 4) = 4 [pid 625] close(3) = 0 [pid 625] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 625] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 625] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 625] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 613] <... exit_group resumed>) = ? [pid 621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 619] <... futex resumed>) = 0 [pid 618] <... futex resumed>) = ? [pid 296] <... ioctl resumed>) = 0 [pid 625] <... clone resumed>, parent_tid=[626], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 626 [pid 619] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] close(3 [pid 621] ftruncate(4, 33587195 [pid 625] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 625] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 626 attached [pid 626] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 626] memfd_create("syzkaller", 0) = 3 [pid 626] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 618] +++ exited with 0 +++ [pid 613] +++ exited with 0 +++ [pid 296] <... close resumed>) = 0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=613, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 621] <... ftruncate resumed>) = 0 [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 621] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 627 [pid 621] <... futex resumed>) = 1 [pid 619] <... futex resumed>) = 0 [pid 624] ioctl(4, LOOP_SET_FD, 3 [pid 621] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 624] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 619] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... restart_syscall resumed>) = 0 [pid 621] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 624] close(4 [pid 619] <... futex resumed>) = 0 [pid 621] sendfile(3, 4, NULL, 4 [pid 619] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 624] <... close resumed>) = 0 [pid 295] <... openat resumed>) = 3 [pid 624] close(3 [pid 295] ioctl(3, LOOP_CLR_FD) = 0 [pid 295] close(3 [pid 621] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 295] <... close resumed>) = 0 [pid 621] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 621] <... futex resumed>) = 1 [pid 619] <... futex resumed>) = 0 [pid 621] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 619] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 628 [pid 619] <... futex resumed>) = 0 [pid 619] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 626] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 628 attached [pid 628] set_robust_list(0x5555573645e0, 24) = 0 [pid 628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 628] setpgid(0, 0) = 0 [pid 628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 624] <... close resumed>) = 0 [pid 623] <... ioctl resumed>) = 0 [pid 624] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 624] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 622] <... futex resumed>) = 0 [pid 622] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 622] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 628] write(3, "1000", 4) = 4 [pid 628] close(3 [pid 624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 624] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 623] ioctl(4, LOOP_SET_FD, 3 [pid 624] <... open resumed>) = 3 [pid 623] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 628] <... close resumed>) = 0 [pid 628] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 624] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 623] close(4 [pid 624] <... futex resumed>) = 1 [pid 622] <... futex resumed>) = 0 [pid 623] <... close resumed>) = 0 [pid 622] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 624] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 623] close(3 [pid 622] <... futex resumed>) = 0 [pid 622] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 628] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 628] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 624] <... open resumed>) = 4 [pid 624] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 622] <... futex resumed>) = 0 [pid 624] ftruncate(4, 33587195 [pid 622] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 622] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 628] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 623] <... close resumed>) = 0 [pid 628] <... clone resumed>, parent_tid=[629], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 629 [pid 628] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 628] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 623] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 620] <... futex resumed>) = 0 [pid 620] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 624] <... ftruncate resumed>) = 0 [pid 623] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 620] <... futex resumed>) = 0 [pid 620] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 624] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 623] <... open resumed>) = 3 [pid 622] <... futex resumed>) = 0 [pid 624] sendfile(3, 4, NULL, 4 [pid 623] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 622] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 624] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 623] <... futex resumed>) = 1 [pid 622] <... futex resumed>) = 0 [pid 620] <... futex resumed>) = 0 [pid 624] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 623] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 622] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 620] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 624] <... futex resumed>) = 0 [pid 622] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 620] <... futex resumed>) = 0 [pid 623] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 624] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 622] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 620] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 624] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 623] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 622] <... futex resumed>) = 0 [pid 624] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 622] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 623] <... open resumed>) = 4 [pid 626] <... write resumed>) = 1048576 [pid 626] munmap(0x7f5626f3a000, 1048576) = 0 [pid 626] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 623] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 620] <... futex resumed>) = 0 [pid 623] ftruncate(4, 33587195 [pid 620] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 620] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 626] <... openat resumed>) = 4 [pid 626] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 626] ioctl(4, LOOP_CLR_FD) = 0 ./strace-static-x86_64: Process 629 attached [pid 629] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 629] memfd_create("syzkaller", 0) = 3 [pid 623] <... ftruncate resumed>) = 0 [pid 626] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 626] close(4) = 0 ./strace-static-x86_64: Process 627 attached [pid 623] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 627] set_robust_list(0x5555573645e0, 24 [pid 620] <... futex resumed>) = 0 [pid 627] <... set_robust_list resumed>) = 0 [pid 623] sendfile(3, 4, NULL, 4 [pid 620] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 623] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 623] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 620] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 627] <... prctl resumed>) = 0 [pid 626] close(3 [pid 623] <... futex resumed>) = 0 [pid 620] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 627] setpgid(0, 0 [pid 623] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 620] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 627] <... setpgid resumed>) = 0 [pid 623] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 620] <... futex resumed>) = 0 [pid 627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 626] <... close resumed>) = 0 [pid 623] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 620] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 629] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 627] <... openat resumed>) = 3 [pid 626] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 625] <... futex resumed>) = 0 [pid 625] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 627] write(3, "1000", 4 [pid 625] <... futex resumed>) = 0 [pid 625] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 627] <... write resumed>) = 4 [pid 627] close(3) = 0 [pid 627] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 626] <... futex resumed>) = 1 [pid 627] <... futex resumed>) = 0 [pid 626] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 627] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 626] <... open resumed>) = 3 [pid 626] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 627] <... mmap resumed>) = 0x7f562f33a000 [pid 625] <... futex resumed>) = 0 [pid 626] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 625] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 627] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 626] <... open resumed>) = 4 [pid 625] <... futex resumed>) = 0 [pid 626] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 625] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 627] <... mprotect resumed>) = 0 [pid 626] <... futex resumed>) = 0 [pid 625] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 626] ftruncate(4, 33587195 [pid 625] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 627] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 625] <... futex resumed>) = 0 [pid 625] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 627] <... clone resumed>, parent_tid=[630], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 630 [pid 626] <... ftruncate resumed>) = 0 [pid 627] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 626] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 627] <... futex resumed>) = 0 [pid 626] <... futex resumed>) = 1 [pid 625] <... futex resumed>) = 0 [pid 627] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 626] sendfile(3, 4, NULL, 4 [pid 625] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 626] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 625] <... futex resumed>) = 0 [pid 626] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 625] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 626] <... futex resumed>) = 0 [pid 625] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 626] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 625] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 629] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 625] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 630 attached [pid 630] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 630] memfd_create("syzkaller", 0) = 3 [pid 630] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 629] <... write resumed>) = 1048576 [pid 619] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 619] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 619] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 619] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 626] <... mmap resumed>) = 0x20000000 [pid 623] <... mmap resumed>) = 0x20000000 [pid 619] <... mprotect resumed>) = 0 [pid 619] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 630] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 621] <... mmap resumed>) = 0x20000000 [pid 619] <... clone resumed>, parent_tid=[631], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 631 [pid 619] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 621] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 619] <... futex resumed>) = 0 [pid 621] <... futex resumed>) = 0 [pid 619] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 621] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 629] munmap(0x7f5626f3a000, 1048576 [pid 623] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 620] <... futex resumed>) = 0 [pid 623] madvise(0x20000000, 6291467, MADV_REMOVE [pid 620] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 620] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 629] <... munmap resumed>) = 0 [pid 629] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 629] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 629] ioctl(4, LOOP_CLR_FD) = 0 [pid 626] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 625] <... futex resumed>) = 0 [pid 625] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 625] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 624] <... mmap resumed>) = 0x20000000 ./strace-static-x86_64: Process 631 attached [pid 631] set_robust_list(0x7f56270399e0, 24) = 0 [pid 629] ioctl(4, LOOP_SET_FD, 3 [pid 631] madvise(0x20000000, 6291467, MADV_REMOVE [pid 629] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 629] close(4 [pid 626] <... futex resumed>) = 1 [pid 629] <... close resumed>) = 0 [pid 626] madvise(0x20000000, 6291467, MADV_REMOVE [pid 629] close(3) = 0 [pid 622] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 622] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 622] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 624] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 622] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 624] <... futex resumed>) = 0 [pid 622] <... mprotect resumed>) = 0 [pid 630] <... write resumed>) = 1048576 [pid 624] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 622] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[632], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 632 [pid 629] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 622] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 629] <... futex resumed>) = 1 [pid 628] <... futex resumed>) = 0 [pid 622] <... futex resumed>) = 0 [pid 629] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 628] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 622] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 629] <... open resumed>) = 3 [pid 628] <... futex resumed>) = 0 [pid 629] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 628] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 629] <... futex resumed>) = 0 [pid 628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 629] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 628] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 629] <... open resumed>) = 4 [pid 628] <... futex resumed>) = 0 [pid 629] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 628] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 629] <... futex resumed>) = 0 [pid 628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 629] ftruncate(4, 33587195 [pid 628] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 628] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 630] munmap(0x7f5626f3a000, 1048576) = 0 ./strace-static-x86_64: Process 632 attached [pid 632] set_robust_list(0x7f56270399e0, 24) = 0 [pid 632] madvise(0x20000000, 6291467, MADV_REMOVE [pid 630] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 630] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 630] ioctl(4, LOOP_CLR_FD) = 0 [pid 630] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 630] close(4) = 0 [pid 630] close(3) = 0 [pid 630] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 627] <... futex resumed>) = 0 [pid 627] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 627] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 630] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 630] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 627] <... futex resumed>) = 0 [pid 630] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 627] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 627] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 630] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 630] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 630] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 627] <... futex resumed>) = 0 [pid 630] ftruncate(4, 33587195 [pid 627] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 627] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 623] <... madvise resumed>) = 0 [pid 632] <... madvise resumed>) = 0 [pid 631] <... madvise resumed>) = 0 [pid 630] <... ftruncate resumed>) = 0 [pid 629] <... ftruncate resumed>) = 0 [pid 626] <... madvise resumed>) = 0 [pid 631] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 619] <... futex resumed>) = 0 [pid 631] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 619] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 621] <... futex resumed>) = 0 [pid 619] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 632] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 630] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 629] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 626] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 632] <... futex resumed>) = 1 [pid 630] <... futex resumed>) = 1 [pid 629] <... futex resumed>) = 1 [pid 628] <... futex resumed>) = 0 [pid 627] <... futex resumed>) = 0 [pid 626] <... futex resumed>) = 1 [pid 625] <... futex resumed>) = 0 [pid 622] <... futex resumed>) = 0 [pid 621] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 627] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 621] <... openat resumed>) = 5 [pid 627] <... futex resumed>) = 0 [pid 621] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 627] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 621] <... futex resumed>) = 1 [pid 619] <... futex resumed>) = 0 [pid 621] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 632] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 630] sendfile(3, 4, NULL, 4 [pid 629] sendfile(3, 4, NULL, 4 [pid 628] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 626] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 625] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 622] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 619] exit_group(0 [pid 623] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 631] <... futex resumed>) = ? [pid 628] <... futex resumed>) = 0 [pid 626] <... openat resumed>) = 5 [pid 625] <... futex resumed>) = 0 [pid 624] <... futex resumed>) = 0 [pid 623] <... futex resumed>) = 1 [pid 622] <... futex resumed>) = 1 [pid 621] <... futex resumed>) = ? [pid 619] <... exit_group resumed>) = ? [pid 620] <... futex resumed>) = 0 [pid 631] +++ exited with 0 +++ [pid 630] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 628] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 626] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 625] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 624] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 623] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 622] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 621] +++ exited with 0 +++ [pid 620] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 630] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 629] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 626] <... futex resumed>) = 0 [pid 625] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 624] <... openat resumed>) = 5 [pid 620] <... futex resumed>) = 0 [pid 619] +++ exited with 0 +++ [pid 630] <... futex resumed>) = 1 [pid 627] <... futex resumed>) = 0 [pid 625] exit_group(0 [pid 624] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 620] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=619, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 630] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 627] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 625] <... exit_group resumed>) = ? [pid 624] <... futex resumed>) = 1 [pid 622] <... futex resumed>) = 0 [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 630] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 627] <... futex resumed>) = 0 [pid 624] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 622] exit_group(0 [pid 292] <... restart_syscall resumed>) = 0 [pid 630] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 629] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 627] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 624] <... futex resumed>) = ? [pid 622] <... exit_group resumed>) = ? [pid 632] <... futex resumed>) = ? [pid 629] <... futex resumed>) = 1 [pid 628] <... futex resumed>) = 0 [pid 626] +++ exited with 0 +++ [pid 625] +++ exited with 0 +++ [pid 624] +++ exited with 0 +++ [pid 623] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 632] +++ exited with 0 +++ [pid 629] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 628] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 622] +++ exited with 0 +++ [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 628] <... futex resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=625, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 629] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 628] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 292] <... openat resumed>) = 3 [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=622, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 623] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 294] <... restart_syscall resumed>) = 0 [pid 292] ioctl(3, LOOP_CLR_FD) = 0 [pid 292] close(3 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 292] <... close resumed>) = 0 [pid 291] <... openat resumed>) = 3 [pid 294] <... openat resumed>) = 3 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] ioctl(3, LOOP_CLR_FD [pid 294] ioctl(3, LOOP_CLR_FD [pid 291] <... ioctl resumed>) = 0 [pid 294] <... ioctl resumed>) = 0 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 633 [pid 291] close(3 [pid 294] close(3 [pid 291] <... close resumed>) = 0 [pid 623] <... openat resumed>) = 5 [pid 294] <... close resumed>) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 623] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 623] <... futex resumed>) = 1 [pid 620] <... futex resumed>) = 0 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 634 [pid 623] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 620] exit_group(0 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 635 [pid 623] <... futex resumed>) = ? [pid 620] <... exit_group resumed>) = ? [pid 623] +++ exited with 0 +++ [pid 620] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=620, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 293] restart_syscall(<... resuming interrupted clone ...>) = 0 ./strace-static-x86_64: Process 635 attached [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 293] ioctl(3, LOOP_CLR_FD) = 0 [pid 293] close(3) = 0 [pid 635] set_robust_list(0x5555573645e0, 24 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 635] <... set_robust_list resumed>) = 0 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 636 [pid 635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 635] setpgid(0, 0) = 0 [pid 635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 635] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 633 attached [pid 635] close(3) = 0 [pid 633] set_robust_list(0x5555573645e0, 24 [pid 635] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 635] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 633] <... set_robust_list resumed>) = 0 [pid 635] <... mmap resumed>) = 0x7f562f33a000 [pid 633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 635] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 633] <... prctl resumed>) = 0 [pid 635] <... mprotect resumed>) = 0 [pid 633] setpgid(0, 0 [pid 635] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 633] <... setpgid resumed>) = 0 [pid 633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 635] <... clone resumed>, parent_tid=[637], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 637 [pid 633] <... openat resumed>) = 3 [pid 635] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 633] write(3, "1000", 4 [pid 635] <... futex resumed>) = 0 [pid 633] <... write resumed>) = 4 [pid 635] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 633] close(3) = 0 [pid 633] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 633] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 633] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 633] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[638], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 638 [pid 633] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 633] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 637 attached [pid 637] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 637] memfd_create("syzkaller", 0) = 3 [pid 637] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 636 attached ./strace-static-x86_64: Process 634 attached [pid 636] set_robust_list(0x5555573645e0, 24) = 0 [pid 634] set_robust_list(0x5555573645e0, 24 [pid 636] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 634] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 638 attached [pid 638] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 638] memfd_create("syzkaller", 0) = 3 [pid 638] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 636] <... prctl resumed>) = 0 [pid 636] setpgid(0, 0 [pid 634] <... prctl resumed>) = 0 [pid 636] <... setpgid resumed>) = 0 [pid 634] setpgid(0, 0 [pid 636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 634] <... setpgid resumed>) = 0 [pid 636] <... openat resumed>) = 3 [pid 634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 636] write(3, "1000", 4 [pid 634] <... openat resumed>) = 3 [pid 636] <... write resumed>) = 4 [pid 634] write(3, "1000", 4 [pid 636] close(3 [pid 634] <... write resumed>) = 4 [pid 636] <... close resumed>) = 0 [pid 634] close(3 [pid 630] <... mmap resumed>) = 0x20000000 [pid 636] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 634] <... close resumed>) = 0 [pid 636] <... futex resumed>) = 0 [pid 634] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 636] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 634] <... futex resumed>) = 0 [pid 636] <... mmap resumed>) = 0x7f562f33a000 [pid 634] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 636] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 634] <... mmap resumed>) = 0x7f562f33a000 [pid 630] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 627] <... futex resumed>) = 0 [pid 627] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 630] <... futex resumed>) = 1 [pid 627] <... futex resumed>) = 0 [pid 630] madvise(0x20000000, 6291467, MADV_REMOVE [pid 627] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 637] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 636] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 634] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 629] <... mmap resumed>) = 0x20000000 [pid 636] <... clone resumed>, parent_tid=[639], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 639 [pid 634] <... mprotect resumed>) = 0 [pid 636] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 634] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 629] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 636] <... futex resumed>) = 0 [pid 629] <... futex resumed>) = 1 [pid 628] <... futex resumed>) = 0 [pid 628] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 636] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 634] <... clone resumed>, parent_tid=[640], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 640 [pid 628] <... futex resumed>) = 0 [pid 634] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 629] madvise(0x20000000, 6291467, MADV_REMOVE [pid 628] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 634] <... futex resumed>) = 0 [pid 634] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 638] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 640 attached [pid 640] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 640] memfd_create("syzkaller", 0) = 3 [pid 640] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 637] <... write resumed>) = 1048576 ./strace-static-x86_64: Process 639 attached [pid 639] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 639] memfd_create("syzkaller", 0) = 3 [pid 637] munmap(0x7f5626f3a000, 1048576 [pid 639] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 637] <... munmap resumed>) = 0 [pid 637] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 637] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 637] ioctl(4, LOOP_CLR_FD) = 0 [pid 639] <... mmap resumed>) = 0x7f5626f3a000 [pid 637] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 637] close(4) = 0 [pid 637] close(3) = 0 [pid 638] <... write resumed>) = 1048576 [pid 640] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 638] munmap(0x7f5626f3a000, 1048576) = 0 [pid 637] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 635] <... futex resumed>) = 0 [pid 635] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 635] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 637] <... futex resumed>) = 1 [pid 637] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 637] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 635] <... futex resumed>) = 0 [pid 635] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 637] <... futex resumed>) = 1 [pid 635] <... futex resumed>) = 0 [pid 638] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 637] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 635] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 639] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 638] <... openat resumed>) = 4 [pid 637] <... open resumed>) = 4 [pid 630] <... madvise resumed>) = 0 [pid 638] ioctl(4, LOOP_SET_FD, 3 [pid 637] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 629] <... madvise resumed>) = 0 [pid 638] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 637] <... futex resumed>) = 1 [pid 635] <... futex resumed>) = 0 [pid 638] ioctl(4, LOOP_CLR_FD [pid 637] ftruncate(4, 33587195 [pid 635] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 638] <... ioctl resumed>) = 0 [pid 637] <... ftruncate resumed>) = 0 [pid 635] <... futex resumed>) = 0 [pid 629] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 637] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 635] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 637] <... futex resumed>) = 0 [pid 635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 637] sendfile(3, 4, NULL, 4 [pid 635] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 637] <... sendfile resumed>) = 4 [pid 635] <... futex resumed>) = 0 [pid 629] <... futex resumed>) = 1 [pid 628] <... futex resumed>) = 0 [pid 637] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 635] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 629] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 637] <... futex resumed>) = 0 [pid 635] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 637] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 635] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 640] <... write resumed>) = 1048576 [pid 639] <... write resumed>) = 1048576 [pid 635] <... futex resumed>) = 0 [pid 630] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 629] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 628] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 640] munmap(0x7f5626f3a000, 1048576 [pid 639] munmap(0x7f5626f3a000, 1048576 [pid 635] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 630] <... futex resumed>) = 1 [pid 629] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 628] <... futex resumed>) = 0 [pid 627] <... futex resumed>) = 0 [pid 640] <... munmap resumed>) = 0 [pid 639] <... munmap resumed>) = 0 [pid 638] ioctl(4, LOOP_SET_FD, 3 [pid 630] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 629] <... openat resumed>) = 5 [pid 628] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 627] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 640] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 639] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 638] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 630] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 629] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 628] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 627] <... futex resumed>) = 0 [pid 640] <... openat resumed>) = 4 [pid 639] <... openat resumed>) = 4 [pid 638] close(4 [pid 630] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 629] <... futex resumed>) = 0 [pid 628] exit_group(0 [pid 627] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 640] ioctl(4, LOOP_SET_FD, 3 [pid 639] ioctl(4, LOOP_SET_FD, 3 [pid 638] <... close resumed>) = 0 [pid 630] <... openat resumed>) = 5 [pid 628] <... exit_group resumed>) = ? [pid 640] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 639] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 638] close(3 [pid 639] ioctl(4, LOOP_CLR_FD [pid 638] <... close resumed>) = 0 [pid 629] +++ exited with 0 +++ [pid 628] +++ exited with 0 +++ [pid 638] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 639] <... ioctl resumed>) = 0 [pid 638] <... futex resumed>) = 1 [pid 633] <... futex resumed>) = 0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=628, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 638] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 633] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 633] <... futex resumed>) = 0 [pid 638] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 633] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 638] <... open resumed>) = 3 [pid 638] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 633] <... futex resumed>) = 0 [pid 638] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 633] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 633] <... futex resumed>) = 0 [pid 640] ioctl(4, LOOP_CLR_FD [pid 638] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 633] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] <... restart_syscall resumed>) = 0 [pid 640] <... ioctl resumed>) = 0 [pid 638] <... open resumed>) = 4 [pid 638] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 633] <... futex resumed>) = 0 [pid 638] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 633] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 633] <... futex resumed>) = 0 [pid 639] ioctl(4, LOOP_SET_FD, 3 [pid 638] ftruncate(4, 33587195 [pid 633] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 639] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 638] <... ftruncate resumed>) = 0 [pid 637] <... mmap resumed>) = 0x20000000 [pid 630] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 639] close(4 [pid 638] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 295] <... openat resumed>) = 3 [pid 639] <... close resumed>) = 0 [pid 638] <... futex resumed>) = 1 [pid 633] <... futex resumed>) = 0 [pid 295] ioctl(3, LOOP_CLR_FD [pid 638] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 633] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 633] <... futex resumed>) = 0 [pid 638] sendfile(3, 4, NULL, 4 [pid 633] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 637] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 635] <... futex resumed>) = 0 [pid 637] madvise(0x20000000, 6291467, MADV_REMOVE [pid 635] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 639] close(3 [pid 638] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 635] <... futex resumed>) = 0 [pid 630] <... futex resumed>) = 1 [pid 627] <... futex resumed>) = 0 [pid 295] <... ioctl resumed>) = 0 [pid 640] ioctl(4, LOOP_SET_FD, 3 [pid 638] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 635] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 627] exit_group(0 [pid 638] <... futex resumed>) = 1 [pid 633] <... futex resumed>) = 0 [pid 627] <... exit_group resumed>) = ? [pid 638] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 633] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 633] <... futex resumed>) = 0 [pid 640] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 639] <... close resumed>) = 0 [pid 638] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 633] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 295] close(3 [pid 640] close(4 [pid 639] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 640] <... close resumed>) = 0 [pid 630] +++ exited with 0 +++ [pid 627] +++ exited with 0 +++ [pid 295] <... close resumed>) = 0 [pid 640] close(3 [pid 639] <... futex resumed>) = 1 [pid 636] <... futex resumed>) = 0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=627, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 640] <... close resumed>) = 0 [pid 639] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 636] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 640] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 639] <... open resumed>) = 3 [pid 636] <... futex resumed>) = 0 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 641 [pid 640] <... futex resumed>) = 1 [pid 639] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 636] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 634] <... futex resumed>) = 0 [pid 640] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 639] <... futex resumed>) = 0 [pid 636] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 634] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 640] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 639] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 636] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 634] <... futex resumed>) = 0 [pid 640] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 636] <... futex resumed>) = 0 [pid 634] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 640] <... open resumed>) = 3 [pid 639] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 636] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 640] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 639] <... open resumed>) = 4 [pid 640] <... futex resumed>) = 1 [pid 639] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 634] <... futex resumed>) = 0 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 640] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 639] <... futex resumed>) = 1 [pid 636] <... futex resumed>) = 0 [pid 634] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 640] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 639] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 636] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 634] <... futex resumed>) = 0 [pid 296] <... openat resumed>) = 3 [pid 640] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 636] <... futex resumed>) = 0 [pid 634] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] ioctl(3, LOOP_CLR_FD [pid 640] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 639] ftruncate(4, 33587195 [pid 636] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 634] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 296] <... ioctl resumed>) = 0 [pid 640] <... futex resumed>) = 0 [pid 634] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 296] close(3 [pid 640] ftruncate(4, 33587195 [pid 634] <... futex resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 634] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 637] <... madvise resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 642 [pid 637] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 639] <... ftruncate resumed>) = 0 [pid 640] <... ftruncate resumed>) = 0 [pid 639] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 639] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 635] <... futex resumed>) = 0 [pid 635] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 635] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 637] <... futex resumed>) = 1 [pid 637] openat(AT_FDCWD, 0x20000000, O_RDONLY) = 5 [pid 637] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 635] <... futex resumed>) = 0 [pid 635] exit_group(0) = ? [pid 637] <... futex resumed>) = ? [pid 640] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 636] <... futex resumed>) = 0 ./strace-static-x86_64: Process 642 attached ./strace-static-x86_64: Process 641 attached [pid 640] <... futex resumed>) = 1 [pid 636] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 634] <... futex resumed>) = 0 [pid 642] set_robust_list(0x5555573645e0, 24 [pid 641] set_robust_list(0x5555573645e0, 24 [pid 640] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 639] <... futex resumed>) = 0 [pid 636] <... futex resumed>) = 1 [pid 634] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 642] <... set_robust_list resumed>) = 0 [pid 641] <... set_robust_list resumed>) = 0 [pid 640] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 639] sendfile(3, 4, NULL, 4 [pid 636] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 634] <... futex resumed>) = 0 [pid 642] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 641] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 640] sendfile(3, 4, NULL, 4 [pid 634] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 642] <... prctl resumed>) = 0 [pid 641] <... prctl resumed>) = 0 [pid 642] setpgid(0, 0 [pid 641] setpgid(0, 0 [pid 642] <... setpgid resumed>) = 0 [pid 642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 641] <... setpgid resumed>) = 0 [pid 640] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 639] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 642] <... openat resumed>) = 3 [pid 641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 640] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 639] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 637] +++ exited with 0 +++ [pid 635] +++ exited with 0 +++ [pid 642] write(3, "1000", 4 [pid 641] <... openat resumed>) = 3 [pid 640] <... futex resumed>) = 1 [pid 639] <... futex resumed>) = 1 [pid 636] <... futex resumed>) = 0 [pid 634] <... futex resumed>) = 0 [pid 642] <... write resumed>) = 4 [pid 641] write(3, "1000", 4 [pid 640] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 639] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 636] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 634] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=635, si_uid=0, si_status=0, si_utime=1, si_stime=3} --- [pid 642] close(3 [pid 641] <... write resumed>) = 4 [pid 640] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 636] <... futex resumed>) = 0 [pid 634] <... futex resumed>) = 0 [pid 294] restart_syscall(<... resuming interrupted clone ...> [pid 642] <... close resumed>) = 0 [pid 641] close(3 [pid 640] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 639] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 636] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 634] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... restart_syscall resumed>) = 0 [pid 642] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 641] <... close resumed>) = 0 [pid 639] <... mmap resumed>) = 0x20000000 [pid 638] <... mmap resumed>) = 0x20000000 [pid 642] <... futex resumed>) = 0 [pid 641] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 638] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 642] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 641] <... futex resumed>) = 0 [pid 638] <... futex resumed>) = 1 [pid 633] <... futex resumed>) = 0 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 642] <... mmap resumed>) = 0x7f562f33a000 [pid 641] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 638] madvise(0x20000000, 6291467, MADV_REMOVE [pid 633] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... openat resumed>) = 3 [pid 642] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 641] <... mmap resumed>) = 0x7f562f33a000 [pid 640] <... mmap resumed>) = 0x20000000 [pid 639] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 633] <... futex resumed>) = 0 [pid 294] ioctl(3, LOOP_CLR_FD [pid 642] <... mprotect resumed>) = 0 [pid 641] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 633] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] <... ioctl resumed>) = 0 [pid 642] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 641] <... mprotect resumed>) = 0 [pid 294] close(3 [pid 641] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 294] <... close resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 644 ./strace-static-x86_64: Process 643 attached [pid 643] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 643] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 644 attached [pid 644] set_robust_list(0x5555573645e0, 24) = 0 [pid 644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 644] setpgid(0, 0) = 0 [pid 644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 644] write(3, "1000", 4) = 4 [pid 644] close(3) = 0 [pid 644] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 644] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 644] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 644] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[645], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 645 [pid 644] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 644] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 641] <... clone resumed>, parent_tid=[646], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 646 [pid 642] <... clone resumed>, parent_tid=[643], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 643 [pid 641] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 642] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 641] <... futex resumed>) = 0 [pid 643] <... futex resumed>) = 0 [pid 642] <... futex resumed>) = 1 [pid 641] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 643] memfd_create("syzkaller", 0 [pid 642] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 640] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 643] <... memfd_create resumed>) = 3 [pid 640] <... futex resumed>) = 1 [pid 634] <... futex resumed>) = 0 [pid 643] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 640] madvise(0x20000000, 6291467, MADV_REMOVE [pid 634] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 639] <... futex resumed>) = 1 [pid 636] <... futex resumed>) = 0 [pid 643] <... mmap resumed>) = 0x7f5626f3a000 [pid 639] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 636] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 634] <... futex resumed>) = 0 [pid 639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 636] <... futex resumed>) = 0 [pid 634] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 639] madvise(0x20000000, 6291467, MADV_REMOVE [pid 636] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 643] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576./strace-static-x86_64: Process 646 attached [pid 646] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 646] memfd_create("syzkaller", 0) = 3 [pid 646] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 645 attached [pid 640] <... madvise resumed>) = 0 [pid 639] <... madvise resumed>) = 0 [pid 638] <... madvise resumed>) = 0 [pid 645] set_robust_list(0x7f562f35a9e0, 24 [pid 640] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 639] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 638] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 646] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 645] <... set_robust_list resumed>) = 0 [pid 640] <... futex resumed>) = 1 [pid 639] <... futex resumed>) = 1 [pid 638] <... futex resumed>) = 1 [pid 636] <... futex resumed>) = 0 [pid 634] <... futex resumed>) = 0 [pid 633] <... futex resumed>) = 0 [pid 645] memfd_create("syzkaller", 0 [pid 640] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 639] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 638] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 636] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 634] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 633] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 645] <... memfd_create resumed>) = 3 [pid 640] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 639] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 638] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 636] <... futex resumed>) = 0 [pid 634] <... futex resumed>) = 0 [pid 633] <... futex resumed>) = 0 [pid 645] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 636] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 633] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 640] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 639] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 638] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 634] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 645] <... mmap resumed>) = 0x7f5626f3a000 [pid 640] <... openat resumed>) = 5 [pid 639] <... openat resumed>) = 5 [pid 640] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 639] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 638] <... openat resumed>) = 5 [pid 640] <... futex resumed>) = 1 [pid 639] <... futex resumed>) = 1 [pid 638] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 636] <... futex resumed>) = 0 [pid 634] <... futex resumed>) = 0 [pid 646] <... write resumed>) = 1048576 [pid 643] <... write resumed>) = 1048576 [pid 640] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 639] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 638] <... futex resumed>) = 1 [pid 636] exit_group(0 [pid 634] exit_group(0 [pid 633] <... futex resumed>) = 0 [pid 643] munmap(0x7f5626f3a000, 1048576 [pid 640] <... futex resumed>) = ? [pid 639] <... futex resumed>) = ? [pid 638] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 636] <... exit_group resumed>) = ? [pid 634] <... exit_group resumed>) = ? [pid 633] exit_group(0 [pid 646] munmap(0x7f5626f3a000, 1048576 [pid 645] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 643] <... munmap resumed>) = 0 [pid 640] +++ exited with 0 +++ [pid 639] +++ exited with 0 +++ [pid 638] <... futex resumed>) = ? [pid 636] +++ exited with 0 +++ [pid 634] +++ exited with 0 +++ [pid 633] <... exit_group resumed>) = ? [pid 646] <... munmap resumed>) = 0 [pid 645] <... write resumed>) = 1048576 [pid 643] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 638] +++ exited with 0 +++ [pid 646] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 4 [pid 646] ioctl(4, LOOP_SET_FD, 3 [pid 645] munmap(0x7f5626f3a000, 1048576 [pid 646] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 645] <... munmap resumed>) = 0 [pid 646] ioctl(4, LOOP_CLR_FD) = 0 [pid 645] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 645] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 645] ioctl(4, LOOP_CLR_FD) = 0 [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=636, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 643] <... openat resumed>) = 4 [pid 643] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 633] +++ exited with 0 +++ [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=634, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 291] restart_syscall(<... resuming interrupted clone ...> [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=633, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 291] <... restart_syscall resumed>) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 292] ioctl(3, LOOP_CLR_FD [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 292] <... ioctl resumed>) = 0 [pid 291] <... openat resumed>) = 3 [pid 292] close(3 [pid 291] ioctl(3, LOOP_CLR_FD [pid 292] <... close resumed>) = 0 [pid 291] <... ioctl resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] close(3) = 0 [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 647 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 648 ./strace-static-x86_64: Process 647 attached [pid 647] set_robust_list(0x5555573645e0, 24) = 0 [pid 647] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 648 attached [pid 648] set_robust_list(0x5555573645e0, 24 [pid 647] <... prctl resumed>) = 0 [pid 647] setpgid(0, 0) = 0 [pid 647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 648] <... set_robust_list resumed>) = 0 [pid 648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 648] setpgid(0, 0) = 0 [pid 647] <... openat resumed>) = 3 [pid 648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 647] write(3, "1000", 4) = 4 [pid 647] close(3 [pid 648] <... openat resumed>) = 3 [pid 647] <... close resumed>) = 0 [pid 647] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 647] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 648] write(3, "1000", 4 [pid 647] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 648] <... write resumed>) = 4 [pid 648] close(3 [pid 647] <... mprotect resumed>) = 0 [pid 648] <... close resumed>) = 0 [pid 648] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 647] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 648] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 648] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 648] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 647] <... clone resumed>, parent_tid=[649], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 649 [pid 647] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 647] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 648] <... clone resumed>, parent_tid=[650], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 650 [pid 648] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 648] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 650 attached [pid 650] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 650] memfd_create("syzkaller", 0) = 3 [pid 650] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3 [pid 293] ioctl(3, LOOP_CLR_FD) = 0 [pid 293] close(3) = 0 [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 651 ./strace-static-x86_64: Process 649 attached [pid 649] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 649] memfd_create("syzkaller", 0) = 3 [pid 649] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 646] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 646] close(4) = 0 [pid 646] close(3./strace-static-x86_64: Process 651 attached [pid 651] set_robust_list(0x5555573645e0, 24) = 0 [pid 651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 651] setpgid(0, 0) = 0 [pid 651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 651] write(3, "1000", 4) = 4 [pid 651] close(3) = 0 [pid 651] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 651] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 651] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 645] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 651] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 645] close(4) = 0 [pid 645] close(3 [pid 643] ioctl(4, LOOP_CLR_FD [pid 651] <... clone resumed>, parent_tid=[652], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 652 [pid 651] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 651] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 650] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 649] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 643] <... ioctl resumed>) = 0 [pid 643] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 643] close(4) = 0 [pid 643] close(3 [pid 646] <... close resumed>) = 0 [pid 645] <... close resumed>) = 0 ./strace-static-x86_64: Process 652 attached [pid 652] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 652] memfd_create("syzkaller", 0) = 3 [pid 646] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 652] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 646] <... futex resumed>) = 1 [pid 641] <... futex resumed>) = 0 [pid 641] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 646] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 641] <... futex resumed>) = 0 [pid 641] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 646] <... open resumed>) = 3 [pid 646] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 641] <... futex resumed>) = 0 [pid 641] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 646] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 641] <... futex resumed>) = 0 [pid 646] <... open resumed>) = 4 [pid 641] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 646] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 643] <... close resumed>) = 0 [pid 646] <... futex resumed>) = 1 [pid 641] <... futex resumed>) = 0 [pid 646] ftruncate(4, 33587195 [pid 641] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 641] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 646] <... ftruncate resumed>) = 0 [pid 645] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 646] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 645] <... futex resumed>) = 1 [pid 644] <... futex resumed>) = 0 [pid 650] <... write resumed>) = 1048576 [pid 646] <... futex resumed>) = 1 [pid 644] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 643] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 641] <... futex resumed>) = 0 [pid 646] sendfile(3, 4, NULL, 4 [pid 645] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 644] <... futex resumed>) = 0 [pid 643] <... futex resumed>) = 1 [pid 642] <... futex resumed>) = 0 [pid 641] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 644] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 642] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 641] <... futex resumed>) = 0 [pid 642] <... futex resumed>) = 0 [pid 641] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 642] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 650] munmap(0x7f5626f3a000, 1048576) = 0 [pid 645] <... open resumed>) = 3 [pid 643] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 650] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 650] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 650] ioctl(4, LOOP_CLR_FD) = 0 [pid 645] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 643] <... open resumed>) = 3 [pid 645] <... futex resumed>) = 1 [pid 644] <... futex resumed>) = 0 [pid 644] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 646] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 645] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 644] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 643] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 646] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 645] <... open resumed>) = 4 [pid 646] <... futex resumed>) = 1 [pid 643] <... futex resumed>) = 1 [pid 642] <... futex resumed>) = 0 [pid 641] <... futex resumed>) = 0 [pid 646] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 642] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 641] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 646] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 645] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 643] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 642] <... futex resumed>) = 0 [pid 641] <... futex resumed>) = 0 [pid 646] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 642] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 641] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 645] <... futex resumed>) = 1 [pid 644] <... futex resumed>) = 0 [pid 643] <... open resumed>) = 4 [pid 649] <... write resumed>) = 1048576 [pid 644] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 652] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 645] ftruncate(4, 33587195 [pid 644] <... futex resumed>) = 0 [pid 643] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 650] ioctl(4, LOOP_SET_FD, 3 [pid 649] munmap(0x7f5626f3a000, 1048576 [pid 644] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 643] <... futex resumed>) = 1 [pid 642] <... futex resumed>) = 0 [pid 650] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 649] <... munmap resumed>) = 0 [pid 643] ftruncate(4, 33587195 [pid 642] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 650] close(4 [pid 649] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 642] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 650] <... close resumed>) = 0 [pid 649] <... openat resumed>) = 4 [pid 650] close(3 [pid 649] ioctl(4, LOOP_SET_FD, 3 [pid 650] <... close resumed>) = 0 [pid 649] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 649] ioctl(4, LOOP_CLR_FD) = 0 [pid 650] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 648] <... futex resumed>) = 0 [pid 648] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 648] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 650] <... futex resumed>) = 1 [pid 645] <... ftruncate resumed>) = 0 [pid 650] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 645] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 643] <... ftruncate resumed>) = 0 [pid 650] <... open resumed>) = 3 [pid 650] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 648] <... futex resumed>) = 0 [pid 650] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 648] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 650] <... open resumed>) = 4 [pid 648] <... futex resumed>) = 0 [pid 650] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 648] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 650] <... futex resumed>) = 0 [pid 648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 650] ftruncate(4, 33587195 [pid 648] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 650] <... ftruncate resumed>) = 0 [pid 648] <... futex resumed>) = 0 [pid 650] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 649] ioctl(4, LOOP_SET_FD, 3 [pid 648] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 645] <... futex resumed>) = 1 [pid 644] <... futex resumed>) = 0 [pid 643] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 650] <... futex resumed>) = 0 [pid 649] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 645] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 644] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 643] <... futex resumed>) = 1 [pid 642] <... futex resumed>) = 0 [pid 652] <... write resumed>) = 1048576 [pid 650] sendfile(3, 4, NULL, 4 [pid 649] close(4 [pid 648] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 645] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 644] <... futex resumed>) = 0 [pid 643] sendfile(3, 4, NULL, 4 [pid 642] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 650] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 649] <... close resumed>) = 0 [pid 648] <... futex resumed>) = 0 [pid 645] sendfile(3, 4, NULL, 4 [pid 644] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 643] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 642] <... futex resumed>) = 0 [pid 650] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 649] close(3 [pid 648] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 645] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 643] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 642] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 650] <... futex resumed>) = 0 [pid 649] <... close resumed>) = 0 [pid 648] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 645] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 643] <... futex resumed>) = 0 [pid 642] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 650] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 649] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 648] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 649] <... futex resumed>) = 1 [pid 648] <... futex resumed>) = 0 [pid 647] <... futex resumed>) = 0 [pid 645] <... futex resumed>) = 1 [pid 644] <... futex resumed>) = 0 [pid 643] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 642] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 649] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 648] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 647] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 645] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 644] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 642] <... futex resumed>) = 0 [pid 649] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 647] <... futex resumed>) = 0 [pid 645] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 644] <... futex resumed>) = 0 [pid 642] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 649] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 647] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 644] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 649] <... open resumed>) = 3 [pid 645] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 649] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 647] <... futex resumed>) = 0 [pid 649] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 647] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 649] <... open resumed>) = 4 [pid 647] <... futex resumed>) = 0 [pid 649] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 647] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 649] <... futex resumed>) = 0 [pid 647] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 649] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 647] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 649] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 647] <... futex resumed>) = 0 [pid 649] ftruncate(4, 33587195 [pid 647] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 652] munmap(0x7f5626f3a000, 1048576) = 0 [pid 649] <... ftruncate resumed>) = 0 [pid 649] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 647] <... futex resumed>) = 0 [pid 652] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 649] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 647] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 652] <... openat resumed>) = 4 [pid 649] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 647] <... futex resumed>) = 0 [pid 652] ioctl(4, LOOP_SET_FD, 3 [pid 649] sendfile(3, 4, NULL, 4 [pid 647] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 652] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 649] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 652] ioctl(4, LOOP_CLR_FD [pid 649] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 652] <... ioctl resumed>) = 0 [pid 649] <... futex resumed>) = 1 [pid 647] <... futex resumed>) = 0 [pid 649] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 647] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 649] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 647] <... futex resumed>) = 0 [pid 649] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 647] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 652] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 652] close(4) = 0 [pid 652] close(3) = 0 [pid 652] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 651] <... futex resumed>) = 0 [pid 652] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 651] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 652] <... open resumed>) = 3 [pid 651] <... futex resumed>) = 0 [pid 652] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 651] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 652] <... futex resumed>) = 0 [pid 651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 652] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 651] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 652] <... open resumed>) = 4 [pid 651] <... futex resumed>) = 0 [pid 652] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 651] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 652] <... futex resumed>) = 0 [pid 651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 652] ftruncate(4, 33587195 [pid 651] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 651] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 652] <... ftruncate resumed>) = 0 [pid 652] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 651] <... futex resumed>) = 0 [pid 652] sendfile(3, 4, NULL, 4 [pid 651] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 652] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 651] <... futex resumed>) = 0 [pid 652] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 651] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 652] <... futex resumed>) = 0 [pid 651] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 652] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 651] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 652] <... mmap resumed>) = 0x20000000 [pid 651] <... futex resumed>) = 0 [pid 646] <... mmap resumed>) = 0x20000000 [pid 643] <... mmap resumed>) = 0x20000000 [pid 651] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 650] <... mmap resumed>) = 0x20000000 [pid 650] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 648] <... futex resumed>) = 0 [pid 648] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 648] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 650] <... futex resumed>) = 1 [pid 650] madvise(0x20000000, 6291467, MADV_REMOVE [pid 649] <... mmap resumed>) = 0x20000000 [pid 649] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 647] <... futex resumed>) = 0 [pid 647] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 647] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 649] <... futex resumed>) = 1 [pid 649] madvise(0x20000000, 6291467, MADV_REMOVE [pid 641] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 641] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 641] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 652] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 651] <... futex resumed>) = 0 [pid 651] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 641] <... mmap resumed>) = 0x7f5627019000 [pid 651] <... futex resumed>) = 0 [pid 651] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 641] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 641] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 652] <... futex resumed>) = 1 [pid 652] madvise(0x20000000, 6291467, MADV_REMOVE [pid 641] <... clone resumed>, parent_tid=[653], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 653 [pid 641] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 641] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 645] <... mmap resumed>) = 0x20000000 [pid 646] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 645] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 646] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 645] <... futex resumed>) = 1 [pid 644] <... futex resumed>) = 0 [pid 644] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 644] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 645] madvise(0x20000000, 6291467, MADV_REMOVE./strace-static-x86_64: Process 653 attached [pid 653] set_robust_list(0x7f56270399e0, 24) = 0 [pid 653] madvise(0x20000000, 6291467, MADV_REMOVE [pid 643] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 642] <... futex resumed>) = 0 [pid 642] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 642] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 643] madvise(0x20000000, 6291467, MADV_REMOVE [pid 650] <... madvise resumed>) = 0 [pid 652] <... madvise resumed>) = 0 [pid 650] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 649] <... madvise resumed>) = 0 [pid 653] <... madvise resumed>) = 0 [pid 652] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 649] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 653] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 645] <... madvise resumed>) = 0 [pid 652] <... futex resumed>) = 1 [pid 651] <... futex resumed>) = 0 [pid 649] <... futex resumed>) = 1 [pid 647] <... futex resumed>) = 0 [pid 643] <... madvise resumed>) = 0 [pid 651] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 653] <... futex resumed>) = 1 [pid 641] <... futex resumed>) = 0 [pid 649] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 653] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 652] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 651] <... futex resumed>) = 0 [pid 650] <... futex resumed>) = 1 [pid 648] <... futex resumed>) = 0 [pid 647] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 645] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 643] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 641] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 652] <... openat resumed>) = 5 [pid 651] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 648] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 647] <... futex resumed>) = 1 [pid 645] <... futex resumed>) = 1 [pid 644] <... futex resumed>) = 0 [pid 643] <... futex resumed>) = 1 [pid 642] <... futex resumed>) = 0 [pid 650] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 641] <... futex resumed>) = 1 [pid 649] <... futex resumed>) = 0 [pid 646] <... futex resumed>) = 0 [pid 649] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 646] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 649] <... openat resumed>) = 5 [pid 646] <... openat resumed>) = 5 [pid 652] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 648] <... futex resumed>) = 0 [pid 647] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 644] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 642] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 641] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 649] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 646] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 649] <... futex resumed>) = 0 [pid 646] <... futex resumed>) = 0 [pid 652] <... futex resumed>) = 1 [pid 651] <... futex resumed>) = 0 [pid 648] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 647] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 645] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 644] <... futex resumed>) = 0 [pid 643] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 642] <... futex resumed>) = 0 [pid 641] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 649] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 646] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 651] exit_group(0 [pid 647] exit_group(0 [pid 644] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 642] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 652] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 641] exit_group(0 [pid 645] <... openat resumed>) = 5 [pid 653] <... futex resumed>) = ? [pid 652] <... futex resumed>) = ? [pid 651] <... exit_group resumed>) = ? [pid 650] <... openat resumed>) = 5 [pid 649] <... futex resumed>) = ? [pid 647] <... exit_group resumed>) = ? [pid 646] <... futex resumed>) = ? [pid 643] <... openat resumed>) = 5 [pid 641] <... exit_group resumed>) = ? [pid 653] +++ exited with 0 +++ [pid 649] +++ exited with 0 +++ [pid 646] +++ exited with 0 +++ [pid 645] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 650] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 648] <... futex resumed>) = 0 [pid 648] exit_group(0 [pid 650] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 652] +++ exited with 0 +++ [pid 651] +++ exited with 0 +++ [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=651, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 648] <... exit_group resumed>) = ? [pid 647] +++ exited with 0 +++ [pid 645] <... futex resumed>) = 1 [pid 641] +++ exited with 0 +++ [pid 644] <... futex resumed>) = 0 [pid 643] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 650] <... futex resumed>) = ? [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=647, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 645] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 644] exit_group(0 [pid 643] <... futex resumed>) = 1 [pid 642] <... futex resumed>) = 0 [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=641, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] <... openat resumed>) = 3 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 645] <... futex resumed>) = ? [pid 644] <... exit_group resumed>) = ? [pid 643] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 642] exit_group(0 [pid 295] restart_syscall(<... resuming interrupted clone ...> [pid 293] ioctl(3, LOOP_CLR_FD [pid 292] <... openat resumed>) = 3 [pid 645] +++ exited with 0 +++ [pid 293] <... ioctl resumed>) = 0 [pid 292] ioctl(3, LOOP_CLR_FD [pid 293] close(3 [pid 292] <... ioctl resumed>) = 0 [pid 644] +++ exited with 0 +++ [pid 643] <... futex resumed>) = ? [pid 642] <... exit_group resumed>) = ? [pid 295] <... restart_syscall resumed>) = 0 [pid 293] <... close resumed>) = 0 [pid 292] close(3 [pid 643] +++ exited with 0 +++ [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=644, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 292] <... close resumed>) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 654 [pid 295] <... openat resumed>) = 3 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 292] <... clone resumed>, child_tidptr=0x5555573645d0) = 655 [pid 295] ioctl(3, LOOP_CLR_FD [pid 294] <... openat resumed>) = 3 [pid 295] <... ioctl resumed>) = 0 [pid 294] ioctl(3, LOOP_CLR_FD [pid 642] +++ exited with 0 +++ [pid 295] close(3 [pid 294] <... ioctl resumed>) = 0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=642, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 295] <... close resumed>) = 0 [pid 294] close(3 [pid 296] restart_syscall(<... resuming interrupted clone ...> [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... close resumed>) = 0 [pid 296] <... restart_syscall resumed>) = 0 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 654 attached [pid 650] +++ exited with 0 +++ [pid 648] +++ exited with 0 +++ [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 656 ./strace-static-x86_64: Process 655 attached [pid 654] set_robust_list(0x5555573645e0, 24 [pid 294] <... clone resumed>, child_tidptr=0x5555573645d0) = 657 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 655] set_robust_list(0x5555573645e0, 24 [pid 654] <... set_robust_list resumed>) = 0 [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=648, si_uid=0, si_status=0, si_utime=0, si_stime=1} --- [pid 296] <... openat resumed>) = 3 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 296] ioctl(3, LOOP_CLR_FD [pid 291] <... openat resumed>) = 3 [pid 296] <... ioctl resumed>) = 0 [pid 291] ioctl(3, LOOP_CLR_FD [pid 296] close(3 [pid 291] <... ioctl resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 291] close(3 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 291] <... close resumed>) = 0 [pid 655] <... set_robust_list resumed>) = 0 [pid 654] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 655] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 654] <... prctl resumed>) = 0 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 658 [pid 654] setpgid(0, 0 [pid 655] <... prctl resumed>) = 0 [pid 291] <... clone resumed>, child_tidptr=0x5555573645d0) = 659 [pid 655] setpgid(0, 0 [pid 654] <... setpgid resumed>) = 0 ./strace-static-x86_64: Process 658 attached [pid 658] set_robust_list(0x5555573645e0, 24) = 0 [pid 658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 655] <... setpgid resumed>) = 0 [pid 654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 656 attached [pid 656] set_robust_list(0x5555573645e0, 24 [pid 658] <... prctl resumed>) = 0 [pid 658] setpgid(0, 0 [pid 656] <... set_robust_list resumed>) = 0 [pid 658] <... setpgid resumed>) = 0 [pid 655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 654] <... openat resumed>) = 3 [pid 655] <... openat resumed>) = 3 [pid 654] write(3, "1000", 4 [pid 655] write(3, "1000", 4 [pid 654] <... write resumed>) = 4 [pid 656] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 655] <... write resumed>) = 4 [pid 654] close(3 [pid 658] <... openat resumed>) = 3 [pid 656] <... prctl resumed>) = 0 [pid 655] close(3 [pid 654] <... close resumed>) = 0 [pid 656] setpgid(0, 0 [pid 658] write(3, "1000", 4 [pid 656] <... setpgid resumed>) = 0 [pid 655] <... close resumed>) = 0 [pid 654] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 658] <... write resumed>) = 4 [pid 656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 655] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 654] <... futex resumed>) = 0 ./strace-static-x86_64: Process 657 attached [pid 658] close(3 [pid 656] <... openat resumed>) = 3 [pid 655] <... futex resumed>) = 0 [pid 654] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 658] <... close resumed>) = 0 [pid 657] set_robust_list(0x5555573645e0, 24 [pid 656] write(3, "1000", 4 [pid 658] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 657] <... set_robust_list resumed>) = 0 [pid 656] <... write resumed>) = 4 [pid 658] <... futex resumed>) = 0 [pid 657] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 656] close(3 [pid 658] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 657] <... prctl resumed>) = 0 [pid 656] <... close resumed>) = 0 [pid 658] <... mmap resumed>) = 0x7f562f33a000 [pid 657] setpgid(0, 0 [pid 656] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 658] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 657] <... setpgid resumed>) = 0 [pid 656] <... futex resumed>) = 0 [pid 658] <... mprotect resumed>) = 0 [pid 657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 656] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 658] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 657] <... openat resumed>) = 3 [pid 656] <... mmap resumed>) = 0x7f562f33a000 [pid 657] write(3, "1000", 4 [pid 656] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 658] <... clone resumed>, parent_tid=[660], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 660 [pid 657] <... write resumed>) = 4 [pid 656] <... mprotect resumed>) = 0 [pid 658] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 657] close(3 [pid 656] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 655] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 654] <... mmap resumed>) = 0x7f562f33a000 [pid 658] <... futex resumed>) = 0 [pid 657] <... close resumed>) = 0 [pid 655] <... mmap resumed>) = 0x7f562f33a000 [pid 654] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 658] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 657] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 656] <... clone resumed>, parent_tid=[661], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 661 [pid 657] <... futex resumed>) = 0 [pid 656] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 657] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 656] <... futex resumed>) = 0 [pid 655] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 654] <... mprotect resumed>) = 0 [pid 657] <... mmap resumed>) = 0x7f562f33a000 [pid 656] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 657] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 657] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[662], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 662 [pid 657] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 657] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000}./strace-static-x86_64: Process 660 attached [pid 660] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 660] memfd_create("syzkaller", 0) = 3 [pid 660] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 ./strace-static-x86_64: Process 662 attached [pid 662] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 662] memfd_create("syzkaller", 0) = 3 [pid 662] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 655] <... mprotect resumed>) = 0 [pid 654] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 655] clone(child_stack=0x7f562f35a3f0, 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 659 attached ./strace-static-x86_64: Process 663 attached [pid 654] <... clone resumed>, parent_tid=[663], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 663 [pid 655] <... clone resumed>, parent_tid=[664], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 664 [pid 654] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 663] set_robust_list(0x7f562f35a9e0, 24 [pid 659] set_robust_list(0x5555573645e0, 24 [pid 655] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 654] <... futex resumed>) = 0 ./strace-static-x86_64: Process 661 attached [pid 663] <... set_robust_list resumed>) = 0 [pid 659] <... set_robust_list resumed>) = 0 [pid 655] <... futex resumed>) = 0 [pid 661] set_robust_list(0x7f562f35a9e0, 24 [pid 654] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 663] memfd_create("syzkaller", 0 [pid 661] <... set_robust_list resumed>) = 0 [pid 659] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 655] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 663] <... memfd_create resumed>) = 3 [pid 661] memfd_create("syzkaller", 0 [pid 659] <... prctl resumed>) = 0 [pid 663] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 661] <... memfd_create resumed>) = 3 [pid 659] setpgid(0, 0 [pid 660] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 663] <... mmap resumed>) = 0x7f5626f3a000 [pid 661] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 659] <... setpgid resumed>) = 0 [pid 659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 662] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 659] <... openat resumed>) = 3 [pid 661] <... mmap resumed>) = 0x7f5626f3a000 [pid 659] write(3, "1000", 4./strace-static-x86_64: Process 664 attached [pid 664] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 664] memfd_create("syzkaller", 0) = 3 [pid 664] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 661] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 659] <... write resumed>) = 4 [pid 659] close(3) = 0 [pid 663] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 659] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 659] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f562f33a000 [pid 659] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 659] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[665], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 665 [pid 659] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 659] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 660] <... write resumed>) = 1048576 [pid 660] munmap(0x7f5626f3a000, 1048576) = 0 [pid 660] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 4 [pid 660] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 660] ioctl(4, LOOP_CLR_FD) = 0 [pid 664] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 662] <... write resumed>) = 1048576 [pid 662] munmap(0x7f5626f3a000, 1048576 [pid 660] ioctl(4, LOOP_SET_FD, 3 [pid 662] <... munmap resumed>) = 0 [pid 660] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 662] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 660] close(4 [pid 662] <... openat resumed>) = 4 [pid 660] <... close resumed>) = 0 [pid 662] ioctl(4, LOOP_SET_FD, 3 [pid 660] close(3./strace-static-x86_64: Process 665 attached [pid 663] <... write resumed>) = 1048576 [pid 662] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 661] <... write resumed>) = 1048576 [pid 662] ioctl(4, LOOP_CLR_FD [pid 663] munmap(0x7f5626f3a000, 1048576 [pid 665] set_robust_list(0x7f562f35a9e0, 24 [pid 662] <... ioctl resumed>) = 0 [pid 661] munmap(0x7f5626f3a000, 1048576) = 0 [pid 660] <... close resumed>) = 0 [pid 660] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] <... set_robust_list resumed>) = 0 [pid 663] <... munmap resumed>) = 0 [pid 661] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 660] <... futex resumed>) = 1 [pid 658] <... futex resumed>) = 0 [pid 660] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 658] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] memfd_create("syzkaller", 0 [pid 663] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 661] <... openat resumed>) = 4 [pid 660] <... open resumed>) = 3 [pid 658] <... futex resumed>) = 0 [pid 660] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 658] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 665] <... memfd_create resumed>) = 3 [pid 663] <... openat resumed>) = 4 [pid 661] ioctl(4, LOOP_SET_FD, 3 [pid 665] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 663] ioctl(4, LOOP_SET_FD, 3 [pid 662] ioctl(4, LOOP_SET_FD, 3 [pid 661] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 660] <... futex resumed>) = 0 [pid 658] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 665] <... mmap resumed>) = 0x7f5626f3a000 [pid 664] <... write resumed>) = 1048576 [pid 663] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 662] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 660] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 658] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 661] ioctl(4, LOOP_CLR_FD [pid 664] munmap(0x7f5626f3a000, 1048576 [pid 662] close(4 [pid 660] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 658] <... futex resumed>) = 0 [pid 664] <... munmap resumed>) = 0 [pid 662] <... close resumed>) = 0 [pid 660] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 658] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 664] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 662] close(3 [pid 660] <... open resumed>) = 4 [pid 664] <... openat resumed>) = 4 [pid 662] <... close resumed>) = 0 [pid 660] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 664] ioctl(4, LOOP_SET_FD, 3 [pid 662] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 660] <... futex resumed>) = 1 [pid 658] <... futex resumed>) = 0 [pid 664] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 662] <... futex resumed>) = 1 [pid 660] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 658] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 657] <... futex resumed>) = 0 [pid 664] ioctl(4, LOOP_CLR_FD [pid 662] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 660] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 658] <... futex resumed>) = 0 [pid 657] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 664] <... ioctl resumed>) = 0 [pid 663] ioctl(4, LOOP_CLR_FD [pid 662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 661] <... ioctl resumed>) = 0 [pid 660] ftruncate(4, 33587195 [pid 658] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 657] <... futex resumed>) = 0 [pid 662] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 660] <... ftruncate resumed>) = 0 [pid 657] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 662] <... open resumed>) = 3 [pid 660] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 662] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 660] <... futex resumed>) = 1 [pid 658] <... futex resumed>) = 0 [pid 662] <... futex resumed>) = 1 [pid 660] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 658] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 657] <... futex resumed>) = 0 [pid 662] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 660] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 658] <... futex resumed>) = 0 [pid 657] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 660] sendfile(3, 4, NULL, 4 [pid 658] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 657] <... futex resumed>) = 0 [pid 662] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 657] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 662] <... open resumed>) = 4 [pid 664] ioctl(4, LOOP_SET_FD, 3 [pid 662] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 664] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 662] <... futex resumed>) = 1 [pid 657] <... futex resumed>) = 0 [pid 663] <... ioctl resumed>) = 0 [pid 664] close(4 [pid 662] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 657] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 664] <... close resumed>) = 0 [pid 662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 660] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 657] <... futex resumed>) = 0 [pid 664] close(3 [pid 662] ftruncate(4, 33587195 [pid 660] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 657] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 664] <... close resumed>) = 0 [pid 662] <... ftruncate resumed>) = 0 [pid 660] <... futex resumed>) = 1 [pid 658] <... futex resumed>) = 0 [pid 664] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 662] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 661] ioctl(4, LOOP_SET_FD, 3 [pid 660] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 658] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 664] <... futex resumed>) = 1 [pid 662] <... futex resumed>) = 1 [pid 661] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 660] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 658] <... futex resumed>) = 0 [pid 657] <... futex resumed>) = 0 [pid 655] <... futex resumed>) = 0 [pid 664] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 662] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 661] close(4 [pid 660] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 658] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 657] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 655] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] <... write resumed>) = 1048576 [pid 664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 661] <... close resumed>) = 0 [pid 657] <... futex resumed>) = 0 [pid 655] <... futex resumed>) = 0 [pid 665] munmap(0x7f5626f3a000, 1048576 [pid 664] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 663] ioctl(4, LOOP_SET_FD, 3 [pid 662] sendfile(3, 4, NULL, 4 [pid 661] close(3 [pid 657] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 655] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 665] <... munmap resumed>) = 0 [pid 664] <... open resumed>) = 3 [pid 663] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 662] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 661] <... close resumed>) = 0 [pid 665] openat(AT_FDCWD, "/dev/loop0", O_RDWR [pid 664] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 663] close(4 [pid 662] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 661] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] <... openat resumed>) = 4 [pid 664] <... futex resumed>) = 1 [pid 663] <... close resumed>) = 0 [pid 662] <... futex resumed>) = 1 [pid 661] <... futex resumed>) = 1 [pid 657] <... futex resumed>) = 0 [pid 656] <... futex resumed>) = 0 [pid 655] <... futex resumed>) = 0 [pid 665] ioctl(4, LOOP_SET_FD, 3 [pid 664] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 663] close(3 [pid 662] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 661] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 657] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 656] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 655] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 663] <... close resumed>) = 0 [pid 662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 661] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 657] <... futex resumed>) = 0 [pid 656] <... futex resumed>) = 0 [pid 655] <... futex resumed>) = 0 [pid 665] ioctl(4, LOOP_CLR_FD [pid 664] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 663] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 662] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 661] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 657] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 656] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 655] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 665] <... ioctl resumed>) = 0 [pid 664] <... open resumed>) = 4 [pid 663] <... futex resumed>) = 1 [pid 661] <... open resumed>) = 3 [pid 654] <... futex resumed>) = 0 [pid 663] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 661] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 654] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 661] <... futex resumed>) = 0 [pid 654] <... futex resumed>) = 0 [pid 663] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 661] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 654] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 663] <... open resumed>) = 3 [pid 665] ioctl(4, LOOP_SET_FD, 3 [pid 663] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 663] <... futex resumed>) = 1 [pid 654] <... futex resumed>) = 0 [pid 665] close(4 [pid 663] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 654] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] <... close resumed>) = 0 [pid 664] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 662] <... mmap resumed>) = 0x20000000 [pid 656] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 654] <... futex resumed>) = 0 [pid 665] close(3 [pid 664] <... futex resumed>) = 1 [pid 663] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 662] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 656] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 655] <... futex resumed>) = 0 [pid 654] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 665] <... close resumed>) = 0 [pid 664] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 663] <... open resumed>) = 4 [pid 662] <... futex resumed>) = 1 [pid 661] <... futex resumed>) = 0 [pid 660] <... mmap resumed>) = 0x20000000 [pid 657] <... futex resumed>) = 0 [pid 656] <... futex resumed>) = 1 [pid 655] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 663] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 662] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 661] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 660] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 657] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 656] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 655] <... futex resumed>) = 0 [pid 665] <... futex resumed>) = 1 [pid 664] ftruncate(4, 33587195 [pid 663] <... futex resumed>) = 1 [pid 662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 661] <... open resumed>) = 4 [pid 660] <... futex resumed>) = 1 [pid 659] <... futex resumed>) = 0 [pid 658] <... futex resumed>) = 0 [pid 657] <... futex resumed>) = 0 [pid 655] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 654] <... futex resumed>) = 0 [pid 665] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 664] <... ftruncate resumed>) = 0 [pid 663] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 662] madvise(0x20000000, 6291467, MADV_REMOVE [pid 661] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 660] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 659] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 658] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 657] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 654] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 664] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 661] <... futex resumed>) = 1 [pid 659] <... futex resumed>) = 0 [pid 656] <... futex resumed>) = 0 [pid 654] <... futex resumed>) = 0 [pid 665] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 663] ftruncate(4, 33587195 [pid 661] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 659] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 656] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 654] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 665] <... open resumed>) = 3 [pid 664] <... futex resumed>) = 1 [pid 661] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 660] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 658] <... futex resumed>) = 0 [pid 656] <... futex resumed>) = 0 [pid 655] <... futex resumed>) = 0 [pid 665] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 664] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 661] ftruncate(4, 33587195 [pid 660] madvise(0x20000000, 6291467, MADV_REMOVE [pid 658] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 656] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 655] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] <... futex resumed>) = 1 [pid 664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 659] <... futex resumed>) = 0 [pid 655] <... futex resumed>) = 0 [pid 665] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 664] sendfile(3, 4, NULL, 4 [pid 659] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 655] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 659] <... futex resumed>) = 0 [pid 665] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 659] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 665] <... open resumed>) = 4 [pid 665] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 659] <... futex resumed>) = 0 [pid 665] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 659] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 659] <... futex resumed>) = 0 [pid 665] ftruncate(4, 33587195 [pid 659] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 663] <... ftruncate resumed>) = 0 [pid 662] <... madvise resumed>) = 0 [pid 661] <... ftruncate resumed>) = 0 [pid 665] <... ftruncate resumed>) = 0 [pid 664] <... sendfile resumed>) = 4 [pid 663] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 661] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 664] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 663] <... futex resumed>) = 1 [pid 662] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 661] <... futex resumed>) = 1 [pid 660] <... madvise resumed>) = 0 [pid 656] <... futex resumed>) = 0 [pid 654] <... futex resumed>) = 0 [pid 665] <... futex resumed>) = 1 [pid 664] <... futex resumed>) = 1 [pid 663] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 662] <... futex resumed>) = 1 [pid 661] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 660] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 659] <... futex resumed>) = 0 [pid 657] <... futex resumed>) = 0 [pid 656] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 655] <... futex resumed>) = 0 [pid 654] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 664] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 662] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 661] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 660] <... futex resumed>) = 1 [pid 659] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 658] <... futex resumed>) = 0 [pid 657] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 656] <... futex resumed>) = 0 [pid 655] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 654] <... futex resumed>) = 0 [pid 665] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 664] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 663] sendfile(3, 4, NULL, 4 [pid 662] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 661] sendfile(3, 4, NULL, 4 [pid 660] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 659] <... futex resumed>) = 0 [pid 658] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 657] <... futex resumed>) = 0 [pid 656] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 655] <... futex resumed>) = 0 [pid 654] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 665] sendfile(3, 4, NULL, 4 [pid 664] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 663] <... sendfile resumed>) = 4 [pid 662] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 660] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 659] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 658] <... futex resumed>) = 0 [pid 657] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 655] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 663] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 654] <... futex resumed>) = 0 [pid 663] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 654] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 663] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 654] <... futex resumed>) = 0 [pid 663] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 654] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 660] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 658] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 660] <... openat resumed>) = 5 [pid 661] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 661] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 661] <... futex resumed>) = 1 [pid 656] <... futex resumed>) = 0 [pid 665] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 660] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] <... futex resumed>) = 1 [pid 660] <... futex resumed>) = 1 [pid 665] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 660] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 661] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 659] <... futex resumed>) = 0 [pid 658] <... futex resumed>) = 0 [pid 656] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 662] <... openat resumed>) = 5 [pid 659] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 658] exit_group(0 [pid 656] <... futex resumed>) = 0 [pid 665] <... futex resumed>) = 0 [pid 660] <... futex resumed>) = ? [pid 659] <... futex resumed>) = 1 [pid 658] <... exit_group resumed>) = ? [pid 656] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 665] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 660] +++ exited with 0 +++ [pid 659] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 658] +++ exited with 0 +++ [pid 662] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 662] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 665] <... mmap resumed>) = 0x20000000 [pid 661] <... mmap resumed>) = 0x20000000 [pid 661] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 656] <... futex resumed>) = 0 [pid 656] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 656] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 661] <... futex resumed>) = 1 [pid 665] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 661] madvise(0x20000000, 6291467, MADV_REMOVE [pid 659] <... futex resumed>) = 0 [pid 659] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 659] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 665] <... futex resumed>) = 1 [pid 665] madvise(0x20000000, 6291467, MADV_REMOVE [pid 664] <... mmap resumed>) = 0x20000000 [pid 663] <... mmap resumed>) = 0x20000000 [pid 655] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 655] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 655] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 655] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 655] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[667], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 667 [pid 655] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 655] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 664] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 664] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 667 attached [pid 667] set_robust_list(0x7f56270399e0, 24) = 0 [pid 667] madvise(0x20000000, 6291467, MADV_REMOVE [pid 663] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 654] <... futex resumed>) = 0 [pid 654] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 654] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 663] <... futex resumed>) = 1 [ 24.710297][ T325] ------------[ cut here ]------------ [ 24.716038][ T325] kernel BUG at fs/ext4/inode.c:2747! [ 24.724322][ T325] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 24.730326][ T325] CPU: 0 PID: 325 Comm: kworker/u4:3 Not tainted 6.1.25-syzkaller-00020-g7641ff0a300a #0 [ 24.739945][ T325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 24.749839][ T325] Workqueue: writeback wb_workfn (flush-7:5) [pid 663] madvise(0x20000000, 6291467, MADV_REMOVE [pid 667] <... madvise resumed>) = 0 [pid 661] <... madvise resumed>) = 0 [pid 663] <... madvise resumed>) = 0 [pid 663] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 667] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 663] <... futex resumed>) = 1 [pid 654] <... futex resumed>) = 0 [pid 667] <... futex resumed>) = 1 [pid 663] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 661] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 655] <... futex resumed>) = 0 [pid 654] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 667] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 661] <... futex resumed>) = 1 [pid 656] <... futex resumed>) = 0 [pid 655] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 654] <... futex resumed>) = 0 [pid 664] <... futex resumed>) = 0 [pid 661] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 656] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 655] <... futex resumed>) = 1 [pid 654] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 664] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 663] <... openat resumed>) = 5 [pid 661] <... openat resumed>) = 5 [pid 656] <... futex resumed>) = 0 [pid 655] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 664] <... openat resumed>) = 5 [pid 663] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 661] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [ 24.755654][ T325] RIP: 0010:ext4_writepages+0x3f95/0x3fb0 [ 24.761207][ T325] Code: 84 82 ff 31 ff 89 de e8 99 84 82 ff 45 84 f6 75 27 e8 ff 81 82 ff 49 be 00 00 00 00 00 fc ff df e9 8e f6 ff ff e8 eb 81 82 ff <0f> 0b e8 e4 81 82 ff e8 9b 40 0f ff eb a0 e8 d8 81 82 ff e8 8f 40 [ 24.780646][ T325] RSP: 0018:ffffc90001006f60 EFLAGS: 00010293 [ 24.786544][ T325] RAX: ffffffff81f13eb5 RBX: 0000008000000000 RCX: ffff8881209d0000 [ 24.794399][ T325] RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 [ 24.802430][ T325] RBP: ffffc90001007370 R08: ffffffff81f105d5 R09: ffffed1021737ce9 [ 24.815285][ T325] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 [ 24.823091][ T325] R13: ffffc90001007750 R14: 000000c410000000 R15: 0000000010000021 [ 24.830993][ T325] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 24.839942][ T325] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.846361][ T325] CR2: 0000000020000000 CR3: 000000011c294000 CR4: 00000000003506b0 [ 24.854173][ T325] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.862073][ T325] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.869885][ T325] Call Trace: [ 24.873004][ T325] [ 24.875785][ T325] ? pagevec_lookup_range_tag+0x3c/0x80 [ 24.881169][ T325] ? generic_writepages+0x160/0x160 [ 24.886197][ T325] ? tag_pages_for_writeback+0x580/0x580 [ 24.891663][ T325] ? ext4_read_folio+0x240/0x240 [ 24.896441][ T325] ? stack_trace_save+0x1c0/0x1c0 [ 24.901397][ T325] ? blk_finish_plug+0x4c/0x80 [ 24.905992][ T325] ? __kasan_check_write+0x14/0x20 [ 24.912858][ T325] ? ext4_read_folio+0x240/0x240 [ 24.917797][ T325] do_writepages+0x385/0x620 [ 24.922240][ T325] ? __writepage+0x130/0x130 [ 24.926652][ T325] ? __kasan_check_write+0x14/0x20 [ 24.931779][ T325] ? __kasan_check_write+0x14/0x20 [ 24.936714][ T325] ? __wake_up+0x1c0/0x1c0 [ 24.940975][ T325] ? __kasan_check_write+0x14/0x20 [ 24.945912][ T325] __writeback_single_inode+0xdc/0xb80 [ 24.951213][ T325] writeback_sb_inodes+0xb33/0x18f0 [ 24.956246][ T325] ? queue_io+0x520/0x520 [ 24.960406][ T325] ? _raw_spin_unlock+0x4c/0x70 [ 24.965097][ T325] ? __writeback_inodes_wb+0x3f0/0x3f0 [ 24.970389][ T325] __writeback_inodes_wb+0x118/0x3f0 [ 24.975510][ T325] ? queue_io+0x3d0/0x520 [ 24.979681][ T325] wb_writeback+0x3cd/0x9f0 [ 24.984017][ T325] ? inode_cgwb_move_to_attached+0x3c0/0x3c0 [ 24.989829][ T325] ? __kasan_check_write+0x14/0x20 [ 24.994867][ T325] wb_workfn+0xbba/0x1030 [ 24.999039][ T325] ? inode_wait_for_writeback+0x280/0x280 [ 25.004858][ T325] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 25.011656][ T325] ? cpu_curr_snapshot+0x90/0x90 [ 25.016421][ T325] ? __kasan_check_read+0x11/0x20 [ 25.021389][ T325] ? read_word_at_a_time+0x12/0x20 [ 25.026760][ T325] ? strscpy+0x9c/0x260 [ 25.030739][ T325] process_one_work+0x73d/0xcb0 [ 25.035442][ T325] worker_thread+0xa60/0x1260 [ 25.039944][ T325] ? __kasan_check_read+0x11/0x20 [ 25.044800][ T325] kthread+0x26d/0x300 [ 25.048704][ T325] ? worker_clr_flags+0x1a0/0x1a0 [ 25.053568][ T325] ? kthread_blkcg+0xd0/0xd0 [ 25.057991][ T325] ret_from_fork+0x1f/0x30 [pid 656] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 664] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 663] <... futex resumed>) = 1 [pid 661] <... futex resumed>) = 0 [pid 656] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 654] <... futex resumed>) = 0 [pid 664] <... futex resumed>) = 1 [pid 663] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 661] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 656] exit_group(0 [pid 655] <... futex resumed>) = 0 [pid 654] exit_group(0 [pid 664] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 663] <... futex resumed>) = ? [pid 661] <... futex resumed>) = ? [pid 656] <... exit_group resumed>) = ? [pid 655] exit_group(0 [pid 654] <... exit_group resumed>) = ? [pid 667] <... futex resumed>) = ? [pid 664] <... futex resumed>) = ? [pid 663] +++ exited with 0 +++ [pid 661] +++ exited with 0 +++ [pid 656] +++ exited with 0 +++ [pid 655] <... exit_group resumed>) = ? [pid 654] +++ exited with 0 +++ [pid 664] +++ exited with 0 +++ [pid 659] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 657] <... futex resumed>) = 0 [pid 657] exit_group(0) = ? [pid 293] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=654, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=658, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 295] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=656, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 662] <... futex resumed>) = ? [ 25.062245][ T325] [ 25.065110][ T325] Modules linked in: [ 25.069228][ T43] ------------[ cut here ]------------ [ 25.074500][ T43] kernel BUG at fs/ext4/inode.c:2747! [ 25.080552][ T43] invalid opcode: 0000 [#2] PREEMPT SMP KASAN [ 25.086432][ T43] CPU: 1 PID: 43 Comm: kworker/u4:2 Tainted: G D 6.1.25-syzkaller-00020-g7641ff0a300a #0 [ 25.097450][ T43] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 25.107344][ T43] Workqueue: writeback wb_workfn (flush-7:3) [ 25.113482][ T43] RIP: 0010:ext4_writepages+0x3f95/0x3fb0 [ 25.119441][ T43] Code: 84 82 ff 31 ff 89 de e8 99 84 82 ff 45 84 f6 75 27 e8 ff 81 82 ff 49 be 00 00 00 00 00 fc ff df e9 8e f6 ff ff e8 eb 81 82 ff <0f> 0b e8 e4 81 82 ff e8 9b 40 0f ff eb a0 e8 d8 81 82 ff e8 8f 40 [ 25.139229][ T43] RSP: 0018:ffffc900002cef60 EFLAGS: 00010293 [ 25.145125][ T43] RAX: ffffffff81f13eb5 RBX: 0000008000000000 RCX: ffff888109bbd000 [ 25.152939][ T43] RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 [ 25.160753][ T43] RBP: ffffc900002cf370 R08: ffffffff81f105d5 R09: ffffed10200aa2e7 [ 25.168558][ T43] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 [ 25.176455][ T43] R13: ffffc900002cf750 R14: 000000c410000000 R15: 0000000010000021 [ 25.184265][ T43] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.193032][ T43] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.199456][ T43] CR2: 00007f562f3fec28 CR3: 000000011a024000 CR4: 00000000003506a0 [ 25.207454][ T43] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.215408][ T43] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.223193][ T43] Call Trace: [ 25.226321][ T43] [ 25.229114][ T43] ? pagevec_lookup_range_tag+0x3c/0x80 [ 25.235684][ T43] ? generic_writepages+0x160/0x160 [ 25.241191][ T43] ? tag_pages_for_writeback+0x580/0x580 [ 25.246671][ T43] ? ext4_read_folio+0x240/0x240 [ 25.251434][ T43] ? cpu_curr_snapshot+0x90/0x90 [ 25.256207][ T43] ? blk_finish_plug+0x4c/0x80 [ 25.260807][ T43] ? __kasan_check_write+0x14/0x20 [ 25.265755][ T43] ? ext4_read_folio+0x240/0x240 [ 25.270526][ T43] do_writepages+0x385/0x620 [ 25.274954][ T43] ? __writepage+0x130/0x130 [ 25.279392][ T43] ? __kasan_check_write+0x14/0x20 [ 25.284339][ T43] ? __kasan_check_write+0x14/0x20 [ 25.289274][ T43] ? __wake_up+0x1c0/0x1c0 [ 25.293526][ T43] ? __kasan_check_write+0x14/0x20 [ 25.298481][ T43] __writeback_single_inode+0xdc/0xb80 [ 25.303766][ T43] writeback_sb_inodes+0xb33/0x18f0 [ 25.308814][ T43] ? queue_io+0x520/0x520 [ 25.312965][ T43] ? _raw_spin_unlock+0x4c/0x70 [ 25.317658][ T43] ? __writeback_inodes_wb+0x3f0/0x3f0 [ 25.322948][ T43] __writeback_inodes_wb+0x118/0x3f0 [ 25.328067][ T43] ? queue_io+0x3d0/0x520 [ 25.332235][ T43] wb_writeback+0x3cd/0x9f0 [ 25.336576][ T43] ? inode_cgwb_move_to_attached+0x3c0/0x3c0 [ 25.342398][ T43] ? __kasan_check_write+0x14/0x20 [ 25.347350][ T43] wb_workfn+0xbba/0x1030 [ 25.351505][ T43] ? inode_wait_for_writeback+0x280/0x280 [ 25.357060][ T43] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 25.362702][ T43] ? cpu_curr_snapshot+0x90/0x90 [ 25.367472][ T43] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 25.372418][ T43] ? __kasan_check_read+0x11/0x20 [ 25.377280][ T43] ? read_word_at_a_time+0x12/0x20 [ 25.382227][ T43] ? strscpy+0x9c/0x260 [ 25.386220][ T43] process_one_work+0x73d/0xcb0 [ 25.390917][ T43] worker_thread+0xa60/0x1260 [ 25.395423][ T43] kthread+0x26d/0x300 [ 25.399322][ T43] ? worker_clr_flags+0x1a0/0x1a0 [ 25.404184][ T43] ? kthread_blkcg+0xd0/0xd0 [ 25.408611][ T43] ret_from_fork+0x1f/0x30 [pid 659] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 665] <... madvise resumed>) = 0 [pid 665] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 665] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 662] +++ exited with 0 +++ [pid 657] +++ exited with 0 +++ [pid 659] <... futex resumed>) = 0 [pid 294] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=657, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 659] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 296] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 295] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 293] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 659] <... mmap resumed>) = 0x7f5627019000 [pid 296] <... openat resumed>) = 3 [pid 659] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE [pid 295] <... openat resumed>) = 3 [pid 293] <... openat resumed>) = 3 [pid 296] ioctl(3, LOOP_CLR_FD) = 0 [pid 295] ioctl(3, LOOP_CLR_FD [pid 293] ioctl(3, LOOP_CLR_FD [pid 659] <... mprotect resumed>) = 0 [pid 296] close(3 [pid 295] <... ioctl resumed>) = 0 [pid 293] <... ioctl resumed>) = 0 [pid 296] <... close resumed>) = 0 [pid 667] +++ exited with 0 +++ [pid 655] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=655, si_uid=0, si_status=0, si_utime=0, si_stime=35} --- [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 293] close(3 [pid 295] close(3 [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 659] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 292] <... restart_syscall resumed>) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3 [pid 292] ioctl(3, LOOP_CLR_FD) = 0 [pid 292] close(3) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 669 [pid 295] <... close resumed>) = 0 [pid 294] openat(AT_FDCWD, "/dev/loop3", O_RDWR [pid 293] <... close resumed>) = 0 [pid 294] <... openat resumed>) = 3 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 293] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] ioctl(3, LOOP_CLR_FD) = 0 [pid 294] close(3 [pid 659] <... clone resumed>, parent_tid=[671], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 671 [pid 296] <... clone resumed>, child_tidptr=0x5555573645d0) = 670 [pid 295] <... clone resumed>, child_tidptr=0x5555573645d0) = 672 [pid 293] <... clone resumed>, child_tidptr=0x5555573645d0) = 673 [pid 659] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000 [pid 294] <... close resumed>) = 0 [pid 659] <... futex resumed>) = 0 [pid 659] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 674 ./strace-static-x86_64: Process 670 attached ./strace-static-x86_64: Process 672 attached ./strace-static-x86_64: Process 674 attached [pid 670] set_robust_list(0x5555573645e0, 24 [pid 674] set_robust_list(0x5555573645e0, 24 [pid 672] set_robust_list(0x5555573645e0, 24 [pid 674] <... set_robust_list resumed>) = 0 [pid 672] <... set_robust_list resumed>) = 0 [pid 672] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 674] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 671 attached ./strace-static-x86_64: Process 673 attached ./strace-static-x86_64: Process 669 attached [pid 671] set_robust_list(0x7f56270399e0, 24) = 0 [pid 673] set_robust_list(0x5555573645e0, 24 [pid 671] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 673] <... set_robust_list resumed>) = 0 [pid 669] set_robust_list(0x5555573645e0, 24 [pid 670] <... set_robust_list resumed>) = 0 [pid 670] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 671] <... openat resumed>) = 5 [pid 673] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 671] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 669] <... set_robust_list resumed>) = 0 [pid 659] <... futex resumed>) = 0 [pid 673] <... prctl resumed>) = 0 [pid 671] <... futex resumed>) = 1 [pid 659] exit_group(0 [pid 671] exit_group(0 [pid 673] setpgid(0, 0 [pid 669] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 665] <... futex resumed>) = ? [pid 659] <... exit_group resumed>) = ? [pid 665] +++ exited with 0 +++ [pid 673] <... setpgid resumed>) = 0 [pid 669] <... prctl resumed>) = 0 [pid 673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 669] setpgid(0, 0 [pid 673] <... openat resumed>) = 3 [pid 669] <... setpgid resumed>) = 0 [pid 672] <... prctl resumed>) = 0 [pid 674] <... prctl resumed>) = 0 [pid 674] setpgid(0, 0 [pid 673] write(3, "1000", 4 [pid 669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 673] <... write resumed>) = 4 [pid 673] close(3) = 0 [pid 671] +++ exited with 0 +++ [pid 669] <... openat resumed>) = 3 [pid 659] +++ exited with 0 +++ [pid 673] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 291] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=659, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 673] <... futex resumed>) = 0 [pid 669] write(3, "1000", 4 [pid 291] restart_syscall(<... resuming interrupted clone ...> [pid 673] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 669] <... write resumed>) = 4 [pid 291] <... restart_syscall resumed>) = 0 [pid 673] <... mmap resumed>) = 0x7f562f33a000 [pid 669] close(3 [pid 673] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 669] <... close resumed>) = 0 [pid 291] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 [pid 291] ioctl(3, LOOP_CLR_FD) = 0 [pid 291] close(3) = 0 [pid 291] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 675 [pid 672] setpgid(0, 0 [pid 670] <... prctl resumed>) = 0 [pid 674] <... setpgid resumed>) = 0 [pid 670] setpgid(0, 0 [pid 672] <... setpgid resumed>) = 0 [pid 672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 670] <... setpgid resumed>) = 0 [pid 670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 673] <... mprotect resumed>) = 0 [pid 669] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 673] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 669] <... futex resumed>) = 0 [pid 674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 673] <... clone resumed>, parent_tid=[676], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 676 [pid 669] <... mmap resumed>) = 0x7f562f33a000 [pid 672] <... openat resumed>) = 3 [pid 670] <... openat resumed>) = 3 [pid 672] write(3, "1000", 4 [pid 674] write(3, "1000", 4 [pid 673] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 669] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 673] <... futex resumed>) = 0 [pid 674] <... write resumed>) = 4 [pid 673] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 672] <... write resumed>) = 4 [pid 670] write(3, "1000", 4 [pid 669] <... mprotect resumed>) = 0 [pid 674] close(3 [pid 672] close(3 [pid 670] <... write resumed>) = 4 [pid 669] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 674] <... close resumed>) = 0 [pid 672] <... close resumed>) = 0 [pid 670] close(3 [pid 669] <... clone resumed>, parent_tid=[677], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 677 [pid 669] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 674] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 672] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 670] <... close resumed>) = 0 [pid 669] <... futex resumed>) = 0 [pid 674] <... futex resumed>) = 0 [pid 672] <... futex resumed>) = 0 [pid 670] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 669] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 672] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 670] <... futex resumed>) = 0 [pid 674] <... mmap resumed>) = 0x7f562f33a000 [pid 672] <... mmap resumed>) = 0x7f562f33a000 [pid 670] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 674] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 672] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 670] <... mmap resumed>) = 0x7f562f33a000 [pid 674] <... mprotect resumed>) = 0 [pid 672] <... mprotect resumed>) = 0 [pid 670] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 674] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 672] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 670] <... mprotect resumed>) = 0 ./strace-static-x86_64: Process 675 attached [pid 675] set_robust_list(0x5555573645e0, 24 [pid 670] clone(child_stack=0x7f562f35a3f0, 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 677 attached [pid 675] <... set_robust_list resumed>) = 0 [pid 674] <... clone resumed>, parent_tid=[678], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 678 [pid 672] <... clone resumed>, parent_tid=[679], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 679 ./strace-static-x86_64: Process 676 attached [pid 677] set_robust_list(0x7f562f35a9e0, 24 [pid 674] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 672] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 670] <... clone resumed>, parent_tid=[680], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 680 [pid 675] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 677] <... set_robust_list resumed>) = 0 [pid 674] <... futex resumed>) = 0 [pid 672] <... futex resumed>) = 0 [pid 670] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 677] memfd_create("syzkaller", 0 [pid 674] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 672] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 670] <... futex resumed>) = 0 [pid 677] <... memfd_create resumed>) = 3 [pid 670] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 677] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 676] set_robust_list(0x7f562f35a9e0, 24 [pid 675] <... prctl resumed>) = 0 ./strace-static-x86_64: Process 680 attached [pid 680] set_robust_list(0x7f562f35a9e0, 24) = 0 [pid 680] memfd_create("syzkaller", 0) = 3 ./strace-static-x86_64: Process 678 attached [pid 680] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 677] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 676] <... set_robust_list resumed>) = 0 [pid 675] setpgid(0, 0 [pid 680] <... mmap resumed>) = 0x7f5626f3a000 [pid 678] set_robust_list(0x7f562f35a9e0, 24 [pid 676] memfd_create("syzkaller", 0 [pid 675] <... setpgid resumed>) = 0 [pid 678] <... set_robust_list resumed>) = 0 [pid 676] <... memfd_create resumed>) = 3 [ 25.413660][ T43] [ 25.416600][ T43] Modules linked in: [pid 675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 679 attached [pid 680] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 678] memfd_create("syzkaller", 0 [pid 676] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 675] <... openat resumed>) = 3 [pid 678] <... memfd_create resumed>) = 3 [pid 678] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5626f3a000 [pid 679] set_robust_list(0x7f562f35a9e0, 24 [pid 676] <... mmap resumed>) = 0x7f5626f3a000 [pid 675] write(3, "1000", 4 [pid 679] <... set_robust_list resumed>) = 0 [pid 676] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 679] memfd_create("syzkaller", 0 [pid 675] <... write resumed>) = 4 [pid 678] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 679] <... memfd_create resumed>) = 3 [pid 676] <... write resumed>) = 1048576 [pid 675] close(3 [pid 677] <... write resumed>) = 1048576 [pid 677] munmap(0x7f5626f3a000, 1048576) = 0 [pid 677] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 4 [pid 677] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 677] ioctl(4, LOOP_CLR_FD) = 0 [pid 680] <... write resumed>) = 1048576 [pid 677] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 677] close(4) = 0 [pid 677] close(3 [pid 678] <... write resumed>) = 1048576 [pid 680] munmap(0x7f5626f3a000, 1048576) = 0 [pid 678] munmap(0x7f5626f3a000, 1048576) = 0 [pid 680] openat(AT_FDCWD, "/dev/loop5", O_RDWR [pid 677] <... close resumed>) = 0 [pid 680] <... openat resumed>) = 4 [pid 680] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 680] ioctl(4, LOOP_CLR_FD) = 0 [pid 678] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 4 [pid 678] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 678] ioctl(4, LOOP_CLR_FD [pid 680] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 680] close(4) = 0 [pid 680] close(3 [pid 678] <... ioctl resumed>) = 0 [pid 677] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 677] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 679] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 676] munmap(0x7f5626f3a000, 1048576 [pid 675] <... close resumed>) = 0 [pid 678] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 678] close(4) = 0 [pid 678] close(3) = 0 [pid 680] <... close resumed>) = 0 [pid 680] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 670] <... futex resumed>) = 0 [pid 670] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 670] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 680] <... futex resumed>) = 1 [pid 680] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 680] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 670] <... futex resumed>) = 0 [pid 670] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 670] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 680] <... futex resumed>) = 1 [pid 680] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 678] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 669] <... futex resumed>) = 0 [pid 674] <... futex resumed>) = 0 [pid 679] <... mmap resumed>) = 0x7f5626f3a000 [pid 674] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 676] <... munmap resumed>) = 0 [pid 675] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 674] <... futex resumed>) = 0 [pid 669] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 674] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 678] <... futex resumed>) = 1 [pid 678] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 680] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 670] <... futex resumed>) = 0 [pid 670] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 670] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 675] <... futex resumed>) = 0 [pid 677] <... futex resumed>) = 0 [pid 676] openat(AT_FDCWD, "/dev/loop2", O_RDWR [pid 669] <... futex resumed>) = 1 [pid 675] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0 [pid 677] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 676] <... openat resumed>) = 4 [pid 675] <... mmap resumed>) = 0x7f562f33a000 [pid 669] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 680] <... futex resumed>) = 1 [pid 678] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 677] <... open resumed>) = 3 [pid 676] ioctl(4, LOOP_SET_FD, 3 [pid 675] mprotect(0x7f562f33b000, 131072, PROT_READ|PROT_WRITE [pid 676] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 680] ftruncate(4, 33587195 [pid 678] <... futex resumed>) = 1 [pid 677] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 676] ioctl(4, LOOP_CLR_FD [pid 675] <... mprotect resumed>) = 0 [pid 674] <... futex resumed>) = 0 [pid 680] <... ftruncate resumed>) = 0 [pid 678] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 677] <... futex resumed>) = 1 [pid 676] <... ioctl resumed>) = 0 [pid 675] clone(child_stack=0x7f562f35a3f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID [pid 674] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 669] <... futex resumed>) = 0 [pid 679] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 680] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 678] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 677] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 674] <... futex resumed>) = 0 [pid 669] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 680] <... futex resumed>) = 1 [pid 678] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 677] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [ 25.474025][ T43] ---[ end trace 0000000000000000 ]--- [ 25.483420][ T43] RIP: 0010:ext4_writepages+0x3f95/0x3fb0 [ 25.489057][ T325] ---[ end trace 0000000000000000 ]--- [ 25.492015][ T43] Code: 84 82 ff 31 ff 89 de e8 99 84 82 ff 45 84 f6 75 27 e8 ff 81 82 ff 49 be 00 00 00 00 00 fc ff df e9 8e f6 ff ff e8 eb 81 82 ff <0f> 0b e8 e4 81 82 ff e8 9b 40 0f ff eb a0 e8 d8 81 82 ff e8 8f 40 [pid 675] <... clone resumed>, parent_tid=[681], tls=0x7f562f35a700, child_tidptr=0x7f562f35a9d0) = 681 [pid 674] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 670] <... futex resumed>) = 0 [pid 669] <... futex resumed>) = 0 [pid 680] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 679] <... write resumed>) = 1048576 [pid 678] <... open resumed>) = 4 [pid 677] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 675] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 670] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 669] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 680] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 679] munmap(0x7f5626f3a000, 1048576 [pid 678] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 677] <... open resumed>) = 4 [pid 676] ioctl(4, LOOP_SET_FD, 3 [pid 675] <... futex resumed>) = 0 [pid 670] <... futex resumed>) = 0 [pid 680] sendfile(3, 4, NULL, 4 [pid 679] <... munmap resumed>) = 0 [pid 678] <... futex resumed>) = 1 [pid 677] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 676] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 675] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 674] <... futex resumed>) = 0 [pid 670] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 679] openat(AT_FDCWD, "/dev/loop4", O_RDWR [pid 678] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 677] <... futex resumed>) = 1 [pid 676] close(4 [pid 674] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 669] <... futex resumed>) = 0 [pid 680] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 679] <... openat resumed>) = 4 [pid 678] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 677] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 676] <... close resumed>) = 0 [pid 674] <... futex resumed>) = 0 [pid 669] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 680] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 679] ioctl(4, LOOP_SET_FD, 3 [pid 678] ftruncate(4, 33587195 [pid 677] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 676] close(3 [pid 674] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 669] <... futex resumed>) = 0 [pid 680] <... futex resumed>) = 1 [pid 679] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 678] <... ftruncate resumed>) = 0 [pid 677] ftruncate(4, 33587195 [pid 670] <... futex resumed>) = 0 [pid 669] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 680] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 678] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 677] <... ftruncate resumed>) = 0 [pid 670] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 680] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 678] <... futex resumed>) = 1 [pid 677] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 674] <... futex resumed>) = 0 [pid 670] <... futex resumed>) = 0 [pid 680] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 678] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 677] <... futex resumed>) = 1 [pid 674] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 670] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 669] <... futex resumed>) = 0 ./strace-static-x86_64: Process 681 attached [pid 679] ioctl(4, LOOP_CLR_FD [pid 678] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 677] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 676] <... close resumed>) = 0 [pid 674] <... futex resumed>) = 0 [pid 669] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 681] set_robust_list(0x7f562f35a9e0, 24 [pid 678] sendfile(3, 4, NULL, 4 [pid 677] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 674] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 669] <... futex resumed>) = 0 [pid 681] <... set_robust_list resumed>) = 0 [pid 678] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 677] sendfile(3, 4, NULL, 4 [pid 669] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 681] memfd_create("syzkaller", 0 [pid 678] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 677] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 681] <... memfd_create resumed>) = 3 [pid 678] <... futex resumed>) = 1 [pid 677] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 674] <... futex resumed>) = 0 [pid 681] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 [pid 678] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 677] <... futex resumed>) = 1 [pid 674] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 669] <... futex resumed>) = 0 [pid 681] <... mmap resumed>) = 0x7f5626f3a000 [pid 678] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 677] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 674] <... futex resumed>) = 0 [pid 669] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 681] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576 [pid 678] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 677] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 674] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 669] <... futex resumed>) = 0 [pid 679] <... ioctl resumed>) = 0 [pid 677] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 676] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [ 25.530483][ T325] RIP: 0010:ext4_writepages+0x3f95/0x3fb0 [ 25.549966][ T43] RSP: 0018:ffffc90001006f60 EFLAGS: 00010293 [ 25.555874][ T43] RAX: ffffffff81f13eb5 RBX: 0000008000000000 RCX: ffff8881209d0000 [ 25.564577][ T43] RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 [pid 669] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 676] <... futex resumed>) = 1 [pid 673] <... futex resumed>) = 0 [pid 681] <... write resumed>) = 1048576 [pid 681] munmap(0x7f5626f3a000, 1048576) = 0 [pid 681] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 681] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 681] ioctl(4, LOOP_CLR_FD) = 0 [pid 681] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 681] close(4) = 0 [pid 681] close(3 [pid 676] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 673] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 681] <... close resumed>) = 0 [pid 681] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 681] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 675] <... futex resumed>) = 0 [pid 673] <... futex resumed>) = 0 [pid 670] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 670] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 670] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 670] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 670] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[682], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 682 [pid 670] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 670] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 679] ioctl(4, LOOP_SET_FD, 3 [pid 676] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 675] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 673] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 674] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 674] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 674] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 674] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 674] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[683], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 683 [pid 674] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 674] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 669] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 669] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 669] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f5627019000 [pid 669] mprotect(0x7f562701a000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 669] clone(child_stack=0x7f56270393f0, flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, parent_tid=[684], tls=0x7f5627039700, child_tidptr=0x7f56270399d0) = 684 [pid 669] futex(0x7f562f4326f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 669] futex(0x7f562f4326fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 677] <... mmap resumed>) = 0x20000000 [pid 677] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 677] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 678] <... mmap resumed>) = 0x20000000 [pid 676] <... open resumed>) = 3 [pid 675] <... futex resumed>) = 1 [pid 681] <... futex resumed>) = 0 ./strace-static-x86_64: Process 683 attached [pid 679] <... ioctl resumed>) = -1 EBUSY (Device or resource busy) [pid 676] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 675] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 681] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000) = 3 [pid 681] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 681] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 678] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 678] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL./strace-static-x86_64: Process 684 attached [pid 684] set_robust_list(0x7f56270399e0, 24) = 0 [ 25.568678][ T325] Code: 84 82 ff 31 ff 89 de e8 99 84 82 ff 45 84 f6 75 27 e8 ff 81 82 ff 49 be 00 00 00 00 00 fc ff df e9 8e f6 ff ff e8 eb 81 82 ff <0f> 0b e8 e4 81 82 ff e8 9b 40 0f ff eb a0 e8 d8 81 82 ff e8 8f 40 [ 25.572624][ T43] RBP: ffffc90001007370 R08: ffffffff81f105d5 R09: ffffed1021737ce9 [ 25.606742][ T43] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001 [ 25.615543][ T43] R13: ffffc90001007750 R14: 000000c410000000 R15: 0000000010000021 [pid 684] madvise(0x20000000, 6291467, MADV_REMOVE [pid 680] <... mmap resumed>) = 0x20000000 ./strace-static-x86_64: Process 682 attached [pid 682] set_robust_list(0x7f56270399e0, 24) = 0 [pid 682] madvise(0x20000000, 6291467, MADV_REMOVE [pid 680] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 683] set_robust_list(0x7f56270399e0, 24 [pid 676] <... futex resumed>) = 1 [pid 675] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 683] <... set_robust_list resumed>) = 0 [pid 673] <... futex resumed>) = 0 [pid 683] madvise(0x20000000, 6291467, MADV_REMOVE [pid 676] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 679] close(4 [pid 676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 675] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 673] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 680] <... futex resumed>) = 0 [pid 680] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 679] <... close resumed>) = 0 [pid 676] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 675] <... futex resumed>) = 1 [pid 673] <... futex resumed>) = 0 [pid 681] <... futex resumed>) = 0 [pid 681] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000) = 4 [pid 681] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 681] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 673] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 676] <... open resumed>) = 4 [pid 675] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 679] close(3 [pid 676] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 675] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 679] <... close resumed>) = 0 [pid 676] <... futex resumed>) = 1 [pid 675] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 673] <... futex resumed>) = 0 [pid 679] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 676] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 675] <... futex resumed>) = 1 [pid 673] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 679] <... futex resumed>) = 1 [pid 676] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 675] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 673] <... futex resumed>) = 0 [pid 679] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 676] ftruncate(4, 33587195 [pid 673] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 681] <... futex resumed>) = 0 [pid 672] <... futex resumed>) = 0 [pid 681] ftruncate(4, 33587195 [pid 672] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 679] <... futex resumed>) = 0 [pid 672] <... futex resumed>) = 1 [pid 679] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_NOFOLLOW|O_NOATIME, 000 [pid 672] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 679] <... open resumed>) = 3 [pid 679] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 672] <... futex resumed>) = 0 [pid 679] open("./bus", O_RDWR|O_CREAT|O_NOCTTY|O_SYNC|O_DIRECT|O_NOATIME, 000 [pid 672] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 679] <... open resumed>) = 4 [pid 672] <... futex resumed>) = 0 [pid 679] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 672] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 679] <... futex resumed>) = 0 [pid 672] <... futex resumed>) = -1 EAGAIN (Resource temporarily unavailable) [pid 679] ftruncate(4, 33587195 [pid 672] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 672] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 682] <... madvise resumed>) = 0 [pid 682] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 670] <... futex resumed>) = 0 [pid 682] futex(0x7f562f4326f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 670] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 680] <... futex resumed>) = 0 [pid 670] <... futex resumed>) = 1 [pid 680] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 670] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 680] <... openat resumed>) = 5 [pid 680] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 670] <... futex resumed>) = 0 [pid 680] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 670] exit_group(0 [pid 682] <... futex resumed>) = ? [pid 680] <... futex resumed>) = ? [pid 670] <... exit_group resumed>) = ? [pid 682] +++ exited with 0 +++ [pid 681] <... ftruncate resumed>) = 0 [pid 680] +++ exited with 0 +++ [pid 679] <... ftruncate resumed>) = 0 [pid 676] <... ftruncate resumed>) = 0 [pid 670] +++ exited with 0 +++ [pid 681] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 679] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 681] <... futex resumed>) = 1 [pid 679] <... futex resumed>) = 1 [pid 672] <... futex resumed>) = 0 [pid 681] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 679] sendfile(3, 4, NULL, 4 [pid 672] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 672] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 684] <... madvise resumed>) = 0 [pid 684] futex(0x7f562f4326fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 669] <... futex resumed>) = 0 [pid 669] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 677] <... futex resumed>) = 0 [pid 669] <... futex resumed>) = 1 [pid 677] openat(AT_FDCWD, 0x20000000, O_RDONLY [pid 669] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 677] <... openat resumed>) = 5 [pid 677] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 669] <... futex resumed>) = 0 [pid 677] futex(0x7f562f4326e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 669] exit_group(0 [pid 677] <... futex resumed>) = ? [pid 669] <... exit_group resumed>) = ? [pid 677] +++ exited with 0 +++ [pid 684] <... futex resumed>) = ? [pid 684] +++ exited with 0 +++ [pid 669] +++ exited with 0 +++ [pid 292] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=669, si_uid=0, si_status=0, si_utime=0, si_stime=2} --- [pid 292] restart_syscall(<... resuming interrupted clone ...> [pid 679] <... sendfile resumed>) = -1 EINVAL (Invalid argument) [pid 676] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 675] <... futex resumed>) = 0 [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=670, si_uid=0, si_status=0, si_utime=0, si_stime=3} --- [pid 679] futex(0x7f562f4326ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 292] <... restart_syscall resumed>) = 0 [pid 679] <... futex resumed>) = 1 [pid 672] <... futex resumed>) = 0 [pid 679] mmap(0x20000000, 11755520, PROT_WRITE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 4, 0 [pid 672] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 676] <... futex resumed>) = 1 [pid 675] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 674] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 673] <... futex resumed>) = 0 [pid 672] <... futex resumed>) = 0 [pid 292] openat(AT_FDCWD, "/dev/loop1", O_RDWR [pid 674] futex(0x7f562f4326e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 672] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... openat resumed>) = 3 [pid 678] <... futex resumed>) = 0 [pid 674] <... futex resumed>) = 1 [pid 292] ioctl(3, LOOP_CLR_FD [pid 674] futex(0x7f562f4326ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 292] <... ioctl resumed>) = 0 [pid 292] close(3) = 0 [pid 292] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555573645d0) = 685 [ 25.624390][ T43] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.633578][ T43] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.649101][ T43] CR2: 00007fffae7d47c0 CR3: 000000010f4b2000 CR4: 00000000003506a0 [ 25.657617][ T43] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.665506][ T43] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.673568][ T43] Kernel panic - not syncing: Fatal exception [ 25.679576][ T43] Kernel Offset: disabled [ 25.683707][ T43] Rebooting in 86400 seconds..