./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3911322079
<...>
Warning: Permanently added '10.128.10.20' (ECDSA) to the list of known hosts.
execve("./syz-executor3911322079", ["./syz-executor3911322079"], 0x7fff176cb120 /* 10 vars */) = 0
brk(NULL) = 0x555555cb5000
brk(0x555555cb5c40) = 0x555555cb5c40
arch_prctl(ARCH_SET_FS, 0x555555cb5300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor3911322079", 4096) = 28
brk(0x555555cd6c40) = 0x555555cd6c40
brk(0x555555cd7000) = 0x555555cd7000
mprotect(0x7f492fa8b000, 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
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3642
./strace-static-x86_64: Process 3642 attached
[pid 3642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3642] setpgid(0, 0) = 0
[pid 3642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3642] write(3, "1000", 4) = 4
[pid 3642] close(3) = 0
[pid 3642] memfd_create("syzkaller", 0) = 3
[pid 3642] ftruncate(3, 16777216) = 0
[pid 3642] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3642] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3642] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3642] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 3642] mkdir("./file0", 0777) = 0
syzkaller login: [ 60.001424][ T3642] loop0: detected capacity change from 0 to 32768
[ 60.014479][ T3642] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 60.022841][ T3642] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 60.038072][ T3642] gfs2: fsid=syz:syz.0: journal 0 mapped with 1 extents in 0ms
[ 60.048074][ T3298] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 60.055025][ T3298] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 60.091604][ T3298] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 36ms
[ 60.100689][ T3298] gfs2: fsid=syz:syz.0: jid=0: Done
[ 60.106420][ T3642] gfs2: fsid=syz:syz.0: first mount done, others may mount
[pid 3642] mount("/dev/loop0", "./file0", "gfs2", 0, "") = 0
[pid 3642] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid 3642] chdir("./file0") = 0
[pid 3642] ioctl(4, LOOP_CLR_FD) = 0
[pid 3642] close(4) = 0
[pid 3642] close(3) = 0
[pid 3642] creat("./bus", 000) = 3
[pid 3642] exit_group(0) = ?
[pid 3642] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3642, si_uid=0, si_status=0, si_utime=4, si_stime=44} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3646 attached
, child_tidptr=0x555555cb55d0) = 3646
[pid 3646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3646] setpgid(0, 0) = 0
[pid 3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3646] write(3, "1000", 4) = 4
[pid 3646] close(3) = 0
[pid 3646] memfd_create("syzkaller", 0) = 3
[pid 3646] ftruncate(3, 16777216) = 0
[pid 3646] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3646] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3646] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3646] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3646] ioctl(4, LOOP_CLR_FD) = 0
[pid 3646] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3646] close(4) = 0
[pid 3646] close(3) = 0
[pid 3646] creat("./bus", 000) = 3
[pid 3646] exit_group(0) = ?
[pid 3646] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, si_uid=0, si_status=0, si_utime=3, si_stime=20} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3647
./strace-static-x86_64: Process 3647 attached
[pid 3647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3647] setpgid(0, 0) = 0
[pid 3647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3647] write(3, "1000", 4) = 4
[pid 3647] close(3) = 0
[pid 3647] memfd_create("syzkaller", 0) = 3
[pid 3647] ftruncate(3, 16777216) = 0
[pid 3647] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3647] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3647] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3647] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3647] ioctl(4, LOOP_CLR_FD) = 0
[pid 3647] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3647] close(4) = 0
[pid 3647] close(3) = 0
[pid 3647] creat("./bus", 000) = 3
[pid 3647] exit_group(0) = ?
[pid 3647] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3647, si_uid=0, si_status=0, si_utime=8, si_stime=14} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3648
./strace-static-x86_64: Process 3648 attached
[pid 3648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3648] setpgid(0, 0) = 0
[pid 3648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3648] write(3, "1000", 4) = 4
[pid 3648] close(3) = 0
[pid 3648] memfd_create("syzkaller", 0) = 3
[pid 3648] ftruncate(3, 16777216) = 0
[pid 3648] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3648] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3648] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3648] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3648] ioctl(4, LOOP_CLR_FD) = 0
[pid 3648] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3648] close(4) = 0
[pid 3648] close(3) = 0
[pid 3648] creat("./bus", 000) = 3
[pid 3648] exit_group(0) = ?
[pid 3648] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3648, si_uid=0, si_status=0, si_utime=7, si_stime=16} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3649
./strace-static-x86_64: Process 3649 attached
[pid 3649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3649] setpgid(0, 0) = 0
[pid 3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3649] write(3, "1000", 4) = 4
[pid 3649] close(3) = 0
[pid 3649] memfd_create("syzkaller", 0) = 3
[pid 3649] ftruncate(3, 16777216) = 0
[pid 3649] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3649] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3649] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3649] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3649] ioctl(4, LOOP_CLR_FD) = 0
[pid 3649] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3649] close(4) = 0
[pid 3649] close(3) = 0
[pid 3649] creat("./bus", 000) = 3
[pid 3649] exit_group(0) = ?
[pid 3649] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3649, si_uid=0, si_status=0, si_utime=6, si_stime=18} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3650
./strace-static-x86_64: Process 3650 attached
[pid 3650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3650] setpgid(0, 0) = 0
[pid 3650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3650] write(3, "1000", 4) = 4
[pid 3650] close(3) = 0
[pid 3650] memfd_create("syzkaller", 0) = 3
[pid 3650] ftruncate(3, 16777216) = 0
[pid 3650] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3650] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3650] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3650] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3650] ioctl(4, LOOP_CLR_FD) = 0
[pid 3650] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3650] close(4) = 0
[pid 3650] close(3) = 0
[pid 3650] creat("./bus", 000) = 3
[pid 3650] exit_group(0) = ?
[pid 3650] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=1, si_stime=20} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3651
./strace-static-x86_64: Process 3651 attached
[pid 3651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3651] setpgid(0, 0) = 0
[pid 3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3651] write(3, "1000", 4) = 4
[pid 3651] close(3) = 0
[pid 3651] memfd_create("syzkaller", 0) = 3
[pid 3651] ftruncate(3, 16777216) = 0
[pid 3651] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3651] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3651] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3651] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3651] ioctl(4, LOOP_CLR_FD) = 0
[pid 3651] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3651] close(4) = 0
[pid 3651] close(3) = 0
[pid 3651] creat("./bus", 000) = 3
[pid 3651] exit_group(0) = ?
[pid 3651] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3651, si_uid=0, si_status=0, si_utime=2, si_stime=20} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3652
./strace-static-x86_64: Process 3652 attached
[pid 3652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3652] setpgid(0, 0) = 0
[pid 3652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3652] write(3, "1000", 4) = 4
[pid 3652] close(3) = 0
[pid 3652] memfd_create("syzkaller", 0) = 3
[pid 3652] ftruncate(3, 16777216) = 0
[pid 3652] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3652] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3652] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3652] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3652] ioctl(4, LOOP_CLR_FD) = 0
[pid 3652] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3652] close(4) = 0
[pid 3652] close(3) = 0
[pid 3652] creat("./bus", 000) = 3
[pid 3652] exit_group(0) = ?
[pid 3652] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3652, si_uid=0, si_status=0, si_utime=5, si_stime=14} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3653
./strace-static-x86_64: Process 3653 attached
[pid 3653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3653] setpgid(0, 0) = 0
[pid 3653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3653] write(3, "1000", 4) = 4
[pid 3653] close(3) = 0
[pid 3653] memfd_create("syzkaller", 0) = 3
[pid 3653] ftruncate(3, 16777216) = 0
[pid 3653] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3653] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3653] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3653] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3653] ioctl(4, LOOP_CLR_FD) = 0
[pid 3653] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3653] close(4) = 0
[pid 3653] close(3) = 0
[pid 3653] creat("./bus", 000) = 3
[pid 3653] exit_group(0) = ?
[pid 3653] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3653, si_uid=0, si_status=0, si_utime=2, si_stime=18} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3654
./strace-static-x86_64: Process 3654 attached
[pid 3654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3654] setpgid(0, 0) = 0
[pid 3654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3654] write(3, "1000", 4) = 4
[pid 3654] close(3) = 0
[pid 3654] memfd_create("syzkaller", 0) = 3
[pid 3654] ftruncate(3, 16777216) = 0
[pid 3654] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3654] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3654] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3654] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3654] ioctl(4, LOOP_CLR_FD) = 0
[pid 3654] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3654] close(4) = 0
[pid 3654] close(3) = 0
[pid 3654] creat("./bus", 000) = 3
[pid 3654] exit_group(0) = ?
[pid 3654] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3654, si_uid=0, si_status=0, si_utime=3, si_stime=18} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3655
./strace-static-x86_64: Process 3655 attached
[pid 3655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3655] setpgid(0, 0) = 0
[pid 3655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3655] write(3, "1000", 4) = 4
[pid 3655] close(3) = 0
[pid 3655] memfd_create("syzkaller", 0) = 3
[pid 3655] ftruncate(3, 16777216) = 0
[pid 3655] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3655] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3655] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3655] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3655] ioctl(4, LOOP_CLR_FD) = 0
[pid 3655] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3655] close(4) = 0
[pid 3655] close(3) = 0
[pid 3655] creat("./bus", 000) = 3
[pid 3655] exit_group(0) = ?
[pid 3655] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3655, si_uid=0, si_status=0, si_utime=7, si_stime=14} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3656
./strace-static-x86_64: Process 3656 attached
[pid 3656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3656] setpgid(0, 0) = 0
[pid 3656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3656] write(3, "1000", 4) = 4
[pid 3656] close(3) = 0
[pid 3656] memfd_create("syzkaller", 0) = 3
[pid 3656] ftruncate(3, 16777216) = 0
[pid 3656] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3656] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3656] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3656] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3656] ioctl(4, LOOP_CLR_FD) = 0
[pid 3656] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3656] close(4) = 0
[pid 3656] close(3) = 0
[pid 3656] creat("./bus", 000) = 3
[pid 3656] exit_group(0) = ?
[pid 3656] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3656, si_uid=0, si_status=0, si_utime=3, si_stime=19} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3657
./strace-static-x86_64: Process 3657 attached
[pid 3657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3657] setpgid(0, 0) = 0
[pid 3657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3657] write(3, "1000", 4) = 4
[pid 3657] close(3) = 0
[pid 3657] memfd_create("syzkaller", 0) = 3
[pid 3657] ftruncate(3, 16777216) = 0
[pid 3657] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3657] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3657] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3657] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3657] ioctl(4, LOOP_CLR_FD) = 0
[pid 3657] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3657] close(4) = 0
[pid 3657] close(3) = 0
[pid 3657] creat("./bus", 000) = 3
[pid 3657] exit_group(0) = ?
[pid 3657] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3657, si_uid=0, si_status=0, si_utime=5, si_stime=17} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3658
./strace-static-x86_64: Process 3658 attached
[pid 3658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3658] setpgid(0, 0) = 0
[pid 3658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3658] write(3, "1000", 4) = 4
[pid 3658] close(3) = 0
[pid 3658] memfd_create("syzkaller", 0) = 3
[pid 3658] ftruncate(3, 16777216) = 0
[pid 3658] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3658] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3658] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3658] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3658] ioctl(4, LOOP_CLR_FD) = 0
[pid 3658] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3658] close(4) = 0
[pid 3658] close(3) = 0
[pid 3658] creat("./bus", 000) = 3
[pid 3658] exit_group(0) = ?
[pid 3658] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3658, si_uid=0, si_status=0, si_utime=5, si_stime=17} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3659
./strace-static-x86_64: Process 3659 attached
[pid 3659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3659] setpgid(0, 0) = 0
[pid 3659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3659] write(3, "1000", 4) = 4
[pid 3659] close(3) = 0
[pid 3659] memfd_create("syzkaller", 0) = 3
[pid 3659] ftruncate(3, 16777216) = 0
[pid 3659] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3659] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3659] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3659] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3659] ioctl(4, LOOP_CLR_FD) = 0
[pid 3659] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3659] close(4) = 0
[pid 3659] close(3) = 0
[pid 3659] creat("./bus", 000) = 3
[pid 3659] exit_group(0) = ?
[pid 3659] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3659, si_uid=0, si_status=0, si_utime=4, si_stime=16} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3660
./strace-static-x86_64: Process 3660 attached
[pid 3660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3660] setpgid(0, 0) = 0
[pid 3660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3660] write(3, "1000", 4) = 4
[pid 3660] close(3) = 0
[pid 3660] memfd_create("syzkaller", 0) = 3
[pid 3660] ftruncate(3, 16777216) = 0
[pid 3660] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3660] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3660] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3660] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3660] ioctl(4, LOOP_CLR_FD) = 0
[pid 3660] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3660] close(4) = 0
[pid 3660] close(3) = 0
[pid 3660] creat("./bus", 000) = 3
[pid 3660] exit_group(0) = ?
[pid 3660] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3660, si_uid=0, si_status=0, si_utime=4, si_stime=16} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3661
./strace-static-x86_64: Process 3661 attached
[pid 3661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3661] setpgid(0, 0) = 0
[pid 3661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3661] write(3, "1000", 4) = 4
[pid 3661] close(3) = 0
[pid 3661] memfd_create("syzkaller", 0) = 3
[pid 3661] ftruncate(3, 16777216) = 0
[pid 3661] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3661] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3661] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3661] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3661] ioctl(4, LOOP_CLR_FD) = 0
[pid 3661] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3661] close(4) = 0
[pid 3661] close(3) = 0
[pid 3661] creat("./bus", 000) = 3
[pid 3661] exit_group(0) = ?
[pid 3661] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3661, si_uid=0, si_status=0, si_utime=6, si_stime=16} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3662
./strace-static-x86_64: Process 3662 attached
[pid 3662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3662] setpgid(0, 0) = 0
[pid 3662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3662] write(3, "1000", 4) = 4
[pid 3662] close(3) = 0
[pid 3662] memfd_create("syzkaller", 0) = 3
[pid 3662] ftruncate(3, 16777216) = 0
[pid 3662] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3662] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3662] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3662] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3662] ioctl(4, LOOP_CLR_FD) = 0
[pid 3662] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3662] close(4) = 0
[pid 3662] close(3) = 0
[pid 3662] creat("./bus", 000) = 3
[pid 3662] exit_group(0) = ?
[pid 3662] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3662, si_uid=0, si_status=0, si_utime=4, si_stime=17} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3663
./strace-static-x86_64: Process 3663 attached
[pid 3663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3663] setpgid(0, 0) = 0
[pid 3663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3663] write(3, "1000", 4) = 4
[pid 3663] close(3) = 0
[pid 3663] memfd_create("syzkaller", 0) = 3
[pid 3663] ftruncate(3, 16777216) = 0
[pid 3663] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3663] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3663] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3663] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3663] ioctl(4, LOOP_CLR_FD) = 0
[pid 3663] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3663] close(4) = 0
[pid 3663] close(3) = 0
[pid 3663] creat("./bus", 000) = 3
[pid 3663] exit_group(0) = ?
[pid 3663] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3663, si_uid=0, si_status=0, si_utime=3, si_stime=20} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3664
./strace-static-x86_64: Process 3664 attached
[pid 3664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3664] setpgid(0, 0) = 0
[pid 3664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3664] write(3, "1000", 4) = 4
[pid 3664] close(3) = 0
[pid 3664] memfd_create("syzkaller", 0) = 3
[pid 3664] ftruncate(3, 16777216) = 0
[pid 3664] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3664] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3664] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3664] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3664] ioctl(4, LOOP_CLR_FD) = 0
[pid 3664] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3664] close(4) = 0
[pid 3664] close(3) = 0
[pid 3664] creat("./bus", 000) = 3
[pid 3664] exit_group(0) = ?
[pid 3664] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3664, si_uid=0, si_status=0, si_utime=5, si_stime=16} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3665
./strace-static-x86_64: Process 3665 attached
[pid 3665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3665] setpgid(0, 0) = 0
[pid 3665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3665] write(3, "1000", 4) = 4
[pid 3665] close(3) = 0
[pid 3665] memfd_create("syzkaller", 0) = 3
[pid 3665] ftruncate(3, 16777216) = 0
[pid 3665] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3665] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3665] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3665] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3665] ioctl(4, LOOP_CLR_FD) = 0
[pid 3665] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3665] close(4) = 0
[pid 3665] close(3) = 0
[pid 3665] creat("./bus", 000) = 3
[pid 3665] exit_group(0) = ?
[pid 3665] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3665, si_uid=0, si_status=0, si_utime=6, si_stime=15} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3666
./strace-static-x86_64: Process 3666 attached
[pid 3666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3666] setpgid(0, 0) = 0
[pid 3666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3666] write(3, "1000", 4) = 4
[pid 3666] close(3) = 0
[pid 3666] memfd_create("syzkaller", 0) = 3
[pid 3666] ftruncate(3, 16777216) = 0
[pid 3666] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3666] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3666] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3666] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3666] ioctl(4, LOOP_CLR_FD) = 0
[pid 3666] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3666] close(4) = 0
[pid 3666] close(3) = 0
[pid 3666] creat("./bus", 000) = 3
[pid 3666] exit_group(0) = ?
[pid 3666] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3666, si_uid=0, si_status=0, si_utime=5, si_stime=18} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3667
./strace-static-x86_64: Process 3667 attached
[pid 3667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3667] setpgid(0, 0) = 0
[pid 3667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3667] write(3, "1000", 4) = 4
[pid 3667] close(3) = 0
[pid 3667] memfd_create("syzkaller", 0) = 3
[pid 3667] ftruncate(3, 16777216) = 0
[pid 3667] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3667] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3667] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3667] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3667] ioctl(4, LOOP_CLR_FD) = 0
[pid 3667] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3667] close(4) = 0
[pid 3667] close(3) = 0
[pid 3667] creat("./bus", 000) = 3
[pid 3667] exit_group(0) = ?
[pid 3667] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3667, si_uid=0, si_status=0, si_utime=4, si_stime=19} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3668
./strace-static-x86_64: Process 3668 attached
[pid 3668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3668] setpgid(0, 0) = 0
[pid 3668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3668] write(3, "1000", 4) = 4
[pid 3668] close(3) = 0
[pid 3668] memfd_create("syzkaller", 0) = 3
[pid 3668] ftruncate(3, 16777216) = 0
[pid 3668] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3668] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3668] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3668] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3668] ioctl(4, LOOP_CLR_FD) = 0
[pid 3668] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3668] close(4) = 0
[pid 3668] close(3) = 0
[pid 3668] creat("./bus", 000) = 3
[pid 3668] exit_group(0) = ?
[pid 3668] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3668, si_uid=0, si_status=0, si_utime=7, si_stime=13} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3669
./strace-static-x86_64: Process 3669 attached
[pid 3669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3669] setpgid(0, 0) = 0
[pid 3669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3669] write(3, "1000", 4) = 4
[pid 3669] close(3) = 0
[pid 3669] memfd_create("syzkaller", 0) = 3
[pid 3669] ftruncate(3, 16777216) = 0
[pid 3669] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3669] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3669] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3669] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3669] ioctl(4, LOOP_CLR_FD) = 0
[pid 3669] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3669] close(4) = 0
[pid 3669] close(3) = 0
[pid 3669] creat("./bus", 000) = 3
[pid 3669] exit_group(0) = ?
[pid 3669] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3669, si_uid=0, si_status=0, si_utime=6, si_stime=17} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3670 attached
, child_tidptr=0x555555cb55d0) = 3670
[pid 3670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3670] setpgid(0, 0) = 0
[pid 3670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3670] write(3, "1000", 4) = 4
[pid 3670] close(3) = 0
[pid 3670] memfd_create("syzkaller", 0) = 3
[pid 3670] ftruncate(3, 16777216) = 0
[pid 3670] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3670] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3670] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3670] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3670] ioctl(4, LOOP_CLR_FD) = 0
[pid 3670] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3670] close(4) = 0
[pid 3670] close(3) = 0
[pid 3670] creat("./bus", 000) = 3
[pid 3670] exit_group(0) = ?
[pid 3670] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3670, si_uid=0, si_status=0, si_utime=7, si_stime=13} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3671
./strace-static-x86_64: Process 3671 attached
[pid 3671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3671] setpgid(0, 0) = 0
[pid 3671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3671] write(3, "1000", 4) = 4
[pid 3671] close(3) = 0
[pid 3671] memfd_create("syzkaller", 0) = 3
[pid 3671] ftruncate(3, 16777216) = 0
[pid 3671] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3671] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3671] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3671] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3671] ioctl(4, LOOP_CLR_FD) = 0
[pid 3671] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3671] close(4) = 0
[pid 3671] close(3) = 0
[pid 3671] creat("./bus", 000) = 3
[pid 3671] exit_group(0) = ?
[pid 3671] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3671, si_uid=0, si_status=0, si_utime=4, si_stime=17} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3672
./strace-static-x86_64: Process 3672 attached
[pid 3672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3672] setpgid(0, 0) = 0
[pid 3672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3672] write(3, "1000", 4) = 4
[pid 3672] close(3) = 0
[pid 3672] memfd_create("syzkaller", 0) = 3
[pid 3672] ftruncate(3, 16777216) = 0
[pid 3672] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3672] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3672] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3672] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3672] ioctl(4, LOOP_CLR_FD) = 0
[pid 3672] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3672] close(4) = 0
[pid 3672] close(3) = 0
[pid 3672] creat("./bus", 000) = 3
[pid 3672] exit_group(0) = ?
[pid 3672] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3672, si_uid=0, si_status=0, si_utime=6, si_stime=15} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3673
./strace-static-x86_64: Process 3673 attached
[pid 3673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3673] setpgid(0, 0) = 0
[pid 3673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3673] write(3, "1000", 4) = 4
[pid 3673] close(3) = 0
[pid 3673] memfd_create("syzkaller", 0) = 3
[pid 3673] ftruncate(3, 16777216) = 0
[pid 3673] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3673] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3673] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3673] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3673] ioctl(4, LOOP_CLR_FD) = 0
[pid 3673] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3673] close(4) = 0
[pid 3673] close(3) = 0
[pid 3673] creat("./bus", 000) = 3
[pid 3673] exit_group(0) = ?
[pid 3673] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3673, si_uid=0, si_status=0, si_utime=3, si_stime=21} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3674
./strace-static-x86_64: Process 3674 attached
[pid 3674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3674] setpgid(0, 0) = 0
[pid 3674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3674] write(3, "1000", 4) = 4
[pid 3674] close(3) = 0
[pid 3674] memfd_create("syzkaller", 0) = 3
[pid 3674] ftruncate(3, 16777216) = 0
[pid 3674] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3674] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3674] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3674] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3674] ioctl(4, LOOP_CLR_FD) = 0
[pid 3674] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3674] close(4) = 0
[pid 3674] close(3) = 0
[pid 3674] creat("./bus", 000) = 3
[pid 3674] exit_group(0) = ?
[pid 3674] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3674, si_uid=0, si_status=0, si_utime=3, si_stime=18} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3675
./strace-static-x86_64: Process 3675 attached
[pid 3675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3675] setpgid(0, 0) = 0
[pid 3675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3675] write(3, "1000", 4) = 4
[pid 3675] close(3) = 0
[pid 3675] memfd_create("syzkaller", 0) = 3
[pid 3675] ftruncate(3, 16777216) = 0
[pid 3675] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3675] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3675] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3675] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3675] ioctl(4, LOOP_CLR_FD) = 0
[pid 3675] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3675] close(4) = 0
[pid 3675] close(3) = 0
[pid 3675] creat("./bus", 000) = 3
[pid 3675] exit_group(0) = ?
[pid 3675] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3675, si_uid=0, si_status=0, si_utime=4, si_stime=17} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3676
./strace-static-x86_64: Process 3676 attached
[pid 3676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3676] setpgid(0, 0) = 0
[pid 3676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3676] write(3, "1000", 4) = 4
[pid 3676] close(3) = 0
[pid 3676] memfd_create("syzkaller", 0) = 3
[pid 3676] ftruncate(3, 16777216) = 0
[pid 3676] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3676] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3676] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3676] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3676] ioctl(4, LOOP_CLR_FD) = 0
[pid 3676] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3676] close(4) = 0
[pid 3676] close(3) = 0
[pid 3676] creat("./bus", 000) = 3
[pid 3676] exit_group(0) = ?
[pid 3676] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3676, si_uid=0, si_status=0, si_utime=4, si_stime=17} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3677
./strace-static-x86_64: Process 3677 attached
[pid 3677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3677] setpgid(0, 0) = 0
[pid 3677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3677] write(3, "1000", 4) = 4
[pid 3677] close(3) = 0
[pid 3677] memfd_create("syzkaller", 0) = 3
[pid 3677] ftruncate(3, 16777216) = 0
[pid 3677] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3677] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3677] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3677] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3677] ioctl(4, LOOP_CLR_FD) = 0
[pid 3677] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3677] close(4) = 0
[pid 3677] close(3) = 0
[pid 3677] creat("./bus", 000) = 3
[pid 3677] exit_group(0) = ?
[pid 3677] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3677, si_uid=0, si_status=0, si_utime=2, si_stime=20} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3678
./strace-static-x86_64: Process 3678 attached
[pid 3678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3678] setpgid(0, 0) = 0
[pid 3678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3678] write(3, "1000", 4) = 4
[pid 3678] close(3) = 0
[pid 3678] memfd_create("syzkaller", 0) = 3
[pid 3678] ftruncate(3, 16777216) = 0
[pid 3678] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3678] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3678] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3678] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3678] ioctl(4, LOOP_CLR_FD) = 0
[pid 3678] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3678] close(4) = 0
[pid 3678] close(3) = 0
[pid 3678] creat("./bus", 000) = 3
[pid 3678] exit_group(0) = ?
[pid 3678] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3678, si_uid=0, si_status=0, si_utime=6, si_stime=17} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3679
./strace-static-x86_64: Process 3679 attached
[pid 3679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3679] setpgid(0, 0) = 0
[pid 3679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3679] write(3, "1000", 4) = 4
[pid 3679] close(3) = 0
[pid 3679] memfd_create("syzkaller", 0) = 3
[pid 3679] ftruncate(3, 16777216) = 0
[pid 3679] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3679] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3679] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3679] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3679] ioctl(4, LOOP_CLR_FD) = 0
[pid 3679] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3679] close(4) = 0
[pid 3679] close(3) = 0
[pid 3679] creat("./bus", 000) = 3
[pid 3679] exit_group(0) = ?
[pid 3679] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3679, si_uid=0, si_status=0, si_utime=5, si_stime=16} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3680
./strace-static-x86_64: Process 3680 attached
[pid 3680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3680] setpgid(0, 0) = 0
[pid 3680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3680] write(3, "1000", 4) = 4
[pid 3680] close(3) = 0
[pid 3680] memfd_create("syzkaller", 0) = 3
[pid 3680] ftruncate(3, 16777216) = 0
[pid 3680] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3680] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3680] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3680] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3680] ioctl(4, LOOP_CLR_FD) = 0
[pid 3680] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3680] close(4) = 0
[pid 3680] close(3) = 0
[pid 3680] creat("./bus", 000) = 3
[pid 3680] exit_group(0) = ?
[pid 3680] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3680, si_uid=0, si_status=0, si_utime=4, si_stime=18} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3681
./strace-static-x86_64: Process 3681 attached
[pid 3681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3681] setpgid(0, 0) = 0
[pid 3681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3681] write(3, "1000", 4) = 4
[pid 3681] close(3) = 0
[pid 3681] memfd_create("syzkaller", 0) = 3
[pid 3681] ftruncate(3, 16777216) = 0
[pid 3681] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3681] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3681] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3681] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3681] ioctl(4, LOOP_CLR_FD) = 0
[pid 3681] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3681] close(4) = 0
[pid 3681] close(3) = 0
[pid 3681] creat("./bus", 000) = 3
[pid 3681] exit_group(0) = ?
[pid 3681] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3681, si_uid=0, si_status=0, si_utime=5, si_stime=18} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3682
./strace-static-x86_64: Process 3682 attached
[pid 3682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3682] setpgid(0, 0) = 0
[pid 3682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3682] write(3, "1000", 4) = 4
[pid 3682] close(3) = 0
[pid 3682] memfd_create("syzkaller", 0) = 3
[pid 3682] ftruncate(3, 16777216) = 0
[pid 3682] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3682] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3682] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3682] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3682] ioctl(4, LOOP_CLR_FD) = 0
[pid 3682] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3682] close(4) = 0
[pid 3682] close(3) = 0
[pid 3682] creat("./bus", 000) = 3
[pid 3682] exit_group(0) = ?
[pid 3682] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3682, si_uid=0, si_status=0, si_utime=7, si_stime=15} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3683
./strace-static-x86_64: Process 3683 attached
[pid 3683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3683] setpgid(0, 0) = 0
[pid 3683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3683] write(3, "1000", 4) = 4
[pid 3683] close(3) = 0
[pid 3683] memfd_create("syzkaller", 0) = 3
[pid 3683] ftruncate(3, 16777216) = 0
[pid 3683] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3683] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3683] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3683] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3683] ioctl(4, LOOP_CLR_FD) = 0
[pid 3683] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3683] close(4) = 0
[pid 3683] close(3) = 0
[pid 3683] creat("./bus", 000) = 3
[pid 3683] exit_group(0) = ?
[pid 3683] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3683, si_uid=0, si_status=0, si_utime=7, si_stime=15} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3684
./strace-static-x86_64: Process 3684 attached
[pid 3684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3684] setpgid(0, 0) = 0
[pid 3684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3684] write(3, "1000", 4) = 4
[pid 3684] close(3) = 0
[pid 3684] memfd_create("syzkaller", 0) = 3
[pid 3684] ftruncate(3, 16777216) = 0
[pid 3684] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3684] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3684] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3684] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3684] ioctl(4, LOOP_CLR_FD) = 0
[pid 3684] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3684] close(4) = 0
[pid 3684] close(3) = 0
[pid 3684] creat("./bus", 000) = 3
[pid 3684] exit_group(0) = ?
[pid 3684] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3684, si_uid=0, si_status=0, si_utime=2, si_stime=20} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3685
./strace-static-x86_64: Process 3685 attached
[pid 3685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3685] setpgid(0, 0) = 0
[pid 3685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3685] write(3, "1000", 4) = 4
[pid 3685] close(3) = 0
[pid 3685] memfd_create("syzkaller", 0) = 3
[pid 3685] ftruncate(3, 16777216) = 0
[pid 3685] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3685] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3685] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3685] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3685] ioctl(4, LOOP_CLR_FD) = 0
[pid 3685] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3685] close(4) = 0
[pid 3685] close(3) = 0
[pid 3685] creat("./bus", 000) = 3
[pid 3685] exit_group(0) = ?
[pid 3685] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3685, si_uid=0, si_status=0, si_utime=6, si_stime=15} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3686
./strace-static-x86_64: Process 3686 attached
[pid 3686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3686] setpgid(0, 0) = 0
[pid 3686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3686] write(3, "1000", 4) = 4
[pid 3686] close(3) = 0
[pid 3686] memfd_create("syzkaller", 0) = 3
[pid 3686] ftruncate(3, 16777216) = 0
[pid 3686] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3686] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3686] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3686] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3686] ioctl(4, LOOP_CLR_FD) = 0
[pid 3686] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3686] close(4) = 0
[pid 3686] close(3) = 0
[pid 3686] creat("./bus", 000) = 3
[pid 3686] exit_group(0) = ?
[pid 3686] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3686, si_uid=0, si_status=0, si_utime=5, si_stime=26} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3687
./strace-static-x86_64: Process 3687 attached
[pid 3687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3687] setpgid(0, 0) = 0
[pid 3687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3687] write(3, "1000", 4) = 4
[pid 3687] close(3) = 0
[pid 3687] memfd_create("syzkaller", 0) = 3
[pid 3687] ftruncate(3, 16777216) = 0
[pid 3687] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3687] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3687] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3687] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3687] ioctl(4, LOOP_CLR_FD) = 0
[pid 3687] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3687] close(4) = 0
[pid 3687] close(3) = 0
[pid 3687] creat("./bus", 000) = 3
[pid 3687] exit_group(0) = ?
[pid 3687] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3687, si_uid=0, si_status=0, si_utime=4, si_stime=15} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3688
./strace-static-x86_64: Process 3688 attached
[pid 3688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3688] setpgid(0, 0) = 0
[pid 3688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3688] write(3, "1000", 4) = 4
[pid 3688] close(3) = 0
[pid 3688] memfd_create("syzkaller", 0) = 3
[pid 3688] ftruncate(3, 16777216) = 0
[pid 3688] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3688] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3688] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3688] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3688] ioctl(4, LOOP_CLR_FD) = 0
[pid 3688] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3688] close(4) = 0
[pid 3688] close(3) = 0
[pid 3688] creat("./bus", 000) = 3
[pid 3688] exit_group(0) = ?
[pid 3688] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3688, si_uid=0, si_status=0, si_utime=5, si_stime=19} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3689
./strace-static-x86_64: Process 3689 attached
[pid 3689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3689] setpgid(0, 0) = 0
[pid 3689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3689] write(3, "1000", 4) = 4
[pid 3689] close(3) = 0
[pid 3689] memfd_create("syzkaller", 0) = 3
[pid 3689] ftruncate(3, 16777216) = 0
[pid 3689] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3689] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3689] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3689] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3689] ioctl(4, LOOP_CLR_FD) = 0
[pid 3689] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3689] close(4) = 0
[pid 3689] close(3) = 0
[pid 3689] creat("./bus", 000) = 3
[pid 3689] exit_group(0) = ?
[pid 3689] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3689, si_uid=0, si_status=0, si_utime=3, si_stime=19} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3690
./strace-static-x86_64: Process 3690 attached
[pid 3690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3690] setpgid(0, 0) = 0
[pid 3690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3690] write(3, "1000", 4) = 4
[pid 3690] close(3) = 0
[pid 3690] memfd_create("syzkaller", 0) = 3
[pid 3690] ftruncate(3, 16777216) = 0
[pid 3690] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3690] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3690] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3690] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3690] ioctl(4, LOOP_CLR_FD) = 0
[pid 3690] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3690] close(4) = 0
[pid 3690] close(3) = 0
[pid 3690] creat("./bus", 000) = 3
[pid 3690] exit_group(0) = ?
[pid 3690] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3690, si_uid=0, si_status=0, si_utime=5, si_stime=25} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3691
./strace-static-x86_64: Process 3691 attached
[pid 3691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3691] setpgid(0, 0) = 0
[pid 3691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3691] write(3, "1000", 4) = 4
[pid 3691] close(3) = 0
[pid 3691] memfd_create("syzkaller", 0) = 3
[pid 3691] ftruncate(3, 16777216) = 0
[pid 3691] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3691] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3691] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3691] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3691] ioctl(4, LOOP_CLR_FD) = 0
[pid 3691] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3691] close(4) = 0
[pid 3691] close(3) = 0
[pid 3691] creat("./bus", 000) = 3
[pid 3691] exit_group(0) = ?
[pid 3691] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3691, si_uid=0, si_status=0, si_utime=3, si_stime=18} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3692
./strace-static-x86_64: Process 3692 attached
[pid 3692] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3692] setpgid(0, 0) = 0
[pid 3692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3692] write(3, "1000", 4) = 4
[pid 3692] close(3) = 0
[pid 3692] memfd_create("syzkaller", 0) = 3
[pid 3692] ftruncate(3, 16777216) = 0
[pid 3692] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3692] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3692] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3692] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3692] ioctl(4, LOOP_CLR_FD) = 0
[pid 3692] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3692] close(4) = 0
[pid 3692] close(3) = 0
[pid 3692] creat("./bus", 000) = 3
[pid 3692] exit_group(0) = ?
[pid 3692] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3692, si_uid=0, si_status=0, si_utime=5, si_stime=17} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3693
./strace-static-x86_64: Process 3693 attached
[pid 3693] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3693] setpgid(0, 0) = 0
[pid 3693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3693] write(3, "1000", 4) = 4
[pid 3693] close(3) = 0
[pid 3693] memfd_create("syzkaller", 0) = 3
[pid 3693] ftruncate(3, 16777216) = 0
[pid 3693] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3693] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3693] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3693] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3693] ioctl(4, LOOP_CLR_FD) = 0
[pid 3693] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3693] close(4) = 0
[pid 3693] close(3) = 0
[pid 3693] creat("./bus", 000) = 3
[pid 3693] exit_group(0) = ?
[pid 3693] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3693, si_uid=0, si_status=0, si_utime=0, si_stime=22} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3694
./strace-static-x86_64: Process 3694 attached
[pid 3694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3694] setpgid(0, 0) = 0
[pid 3694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3694] write(3, "1000", 4) = 4
[pid 3694] close(3) = 0
[pid 3694] memfd_create("syzkaller", 0) = 3
[pid 3694] ftruncate(3, 16777216) = 0
[pid 3694] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3694] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3694] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3694] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3694] ioctl(4, LOOP_CLR_FD) = 0
[pid 3694] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3694] close(4) = 0
[pid 3694] close(3) = 0
[pid 3694] creat("./bus", 000) = 3
[pid 3694] exit_group(0) = ?
[pid 3694] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3694, si_uid=0, si_status=0, si_utime=4, si_stime=18} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3695
./strace-static-x86_64: Process 3695 attached
[pid 3695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3695] setpgid(0, 0) = 0
[pid 3695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3695] write(3, "1000", 4) = 4
[pid 3695] close(3) = 0
[pid 3695] memfd_create("syzkaller", 0) = 3
[pid 3695] ftruncate(3, 16777216) = 0
[pid 3695] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3695] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3695] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3695] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3695] ioctl(4, LOOP_CLR_FD) = 0
[pid 3695] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3695] close(4) = 0
[pid 3695] close(3) = 0
[pid 3695] creat("./bus", 000) = 3
[pid 3695] exit_group(0) = ?
[pid 3695] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3695, si_uid=0, si_status=0, si_utime=2, si_stime=20} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3696
./strace-static-x86_64: Process 3696 attached
[pid 3696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3696] setpgid(0, 0) = 0
[pid 3696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3696] write(3, "1000", 4) = 4
[pid 3696] close(3) = 0
[pid 3696] memfd_create("syzkaller", 0) = 3
[pid 3696] ftruncate(3, 16777216) = 0
[pid 3696] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3696] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3696] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3696] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3696] ioctl(4, LOOP_CLR_FD) = 0
[pid 3696] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3696] close(4) = 0
[pid 3696] close(3) = 0
[pid 3696] creat("./bus", 000) = 3
[pid 3696] exit_group(0) = ?
[pid 3696] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3696, si_uid=0, si_status=0, si_utime=4, si_stime=19} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3697
./strace-static-x86_64: Process 3697 attached
[pid 3697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3697] setpgid(0, 0) = 0
[pid 3697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3697] write(3, "1000", 4) = 4
[pid 3697] close(3) = 0
[pid 3697] memfd_create("syzkaller", 0) = 3
[pid 3697] ftruncate(3, 16777216) = 0
[pid 3697] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3697] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3697] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3697] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3697] ioctl(4, LOOP_CLR_FD) = 0
[pid 3697] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3697] close(4) = 0
[pid 3697] close(3) = 0
[pid 3697] creat("./bus", 000) = 3
[pid 3697] exit_group(0) = ?
[pid 3697] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3697, si_uid=0, si_status=0, si_utime=6, si_stime=17} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3698
./strace-static-x86_64: Process 3698 attached
[pid 3698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3698] setpgid(0, 0) = 0
[pid 3698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3698] write(3, "1000", 4) = 4
[pid 3698] close(3) = 0
[pid 3698] memfd_create("syzkaller", 0) = 3
[pid 3698] ftruncate(3, 16777216) = 0
[pid 3698] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3698] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3698] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3698] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3698] ioctl(4, LOOP_CLR_FD) = 0
[pid 3698] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3698] close(4) = 0
[pid 3698] close(3) = 0
[pid 3698] creat("./bus", 000) = 3
[pid 3698] exit_group(0) = ?
[pid 3698] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3698, si_uid=0, si_status=0, si_utime=1, si_stime=20} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3699
./strace-static-x86_64: Process 3699 attached
[pid 3699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3699] setpgid(0, 0) = 0
[pid 3699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3699] write(3, "1000", 4) = 4
[pid 3699] close(3) = 0
[pid 3699] memfd_create("syzkaller", 0) = 3
[pid 3699] ftruncate(3, 16777216) = 0
[pid 3699] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3699] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3699] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3699] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3699] ioctl(4, LOOP_CLR_FD) = 0
[pid 3699] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3699] close(4) = 0
[pid 3699] close(3) = 0
[pid 3699] creat("./bus", 000) = 3
[pid 3699] exit_group(0) = ?
[pid 3699] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3699, si_uid=0, si_status=0, si_utime=6, si_stime=16} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3700
./strace-static-x86_64: Process 3700 attached
[pid 3700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3700] setpgid(0, 0) = 0
[pid 3700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3700] write(3, "1000", 4) = 4
[pid 3700] close(3) = 0
[pid 3700] memfd_create("syzkaller", 0) = 3
[pid 3700] ftruncate(3, 16777216) = 0
[pid 3700] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3700] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3700] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3700] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3700] ioctl(4, LOOP_CLR_FD) = 0
[pid 3700] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3700] close(4) = 0
[pid 3700] close(3) = 0
[pid 3700] creat("./bus", 000) = 3
[pid 3700] exit_group(0) = ?
[pid 3700] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3700, si_uid=0, si_status=0, si_utime=4, si_stime=19} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3701
./strace-static-x86_64: Process 3701 attached
[pid 3701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3701] setpgid(0, 0) = 0
[pid 3701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3701] write(3, "1000", 4) = 4
[pid 3701] close(3) = 0
[pid 3701] memfd_create("syzkaller", 0) = 3
[pid 3701] ftruncate(3, 16777216) = 0
[pid 3701] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3701] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3701] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3701] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3701] ioctl(4, LOOP_CLR_FD) = 0
[pid 3701] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3701] close(4) = 0
[pid 3701] close(3) = 0
[pid 3701] creat("./bus", 000) = 3
[pid 3701] exit_group(0) = ?
[pid 3701] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3701, si_uid=0, si_status=0, si_utime=3, si_stime=19} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3702
./strace-static-x86_64: Process 3702 attached
[pid 3702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3702] setpgid(0, 0) = 0
[pid 3702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3702] write(3, "1000", 4) = 4
[pid 3702] close(3) = 0
[pid 3702] memfd_create("syzkaller", 0) = 3
[pid 3702] ftruncate(3, 16777216) = 0
[pid 3702] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3702] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3702] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3702] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3702] ioctl(4, LOOP_CLR_FD) = 0
[pid 3702] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3702] close(4) = 0
[pid 3702] close(3) = 0
[pid 3702] creat("./bus", 000) = 3
[pid 3702] exit_group(0) = ?
[pid 3702] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3702, si_uid=0, si_status=0, si_utime=5, si_stime=17} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3703
./strace-static-x86_64: Process 3703 attached
[pid 3703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3703] setpgid(0, 0) = 0
[pid 3703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3703] write(3, "1000", 4) = 4
[pid 3703] close(3) = 0
[pid 3703] memfd_create("syzkaller", 0) = 3
[pid 3703] ftruncate(3, 16777216) = 0
[pid 3703] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3703] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3703] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3703] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3703] ioctl(4, LOOP_CLR_FD) = 0
[pid 3703] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3703] close(4) = 0
[pid 3703] close(3) = 0
[pid 3703] creat("./bus", 000) = 3
[pid 3703] exit_group(0) = ?
[pid 3703] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3703, si_uid=0, si_status=0, si_utime=7, si_stime=14} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3704
./strace-static-x86_64: Process 3704 attached
[pid 3704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3704] setpgid(0, 0) = 0
[pid 3704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3704] write(3, "1000", 4) = 4
[pid 3704] close(3) = 0
[pid 3704] memfd_create("syzkaller", 0) = 3
[pid 3704] ftruncate(3, 16777216) = 0
[pid 3704] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[ 76.302841][ T14] cfg80211: failed to load regulatory.db
[pid 3704] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3704] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3704] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3704] ioctl(4, LOOP_CLR_FD) = 0
[pid 3704] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3704] close(4) = 0
[pid 3704] close(3) = 0
[pid 3704] creat("./bus", 000) = 3
[pid 3704] exit_group(0) = ?
[pid 3704] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3704, si_uid=0, si_status=0, si_utime=3, si_stime=20} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3705
./strace-static-x86_64: Process 3705 attached
[pid 3705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3705] setpgid(0, 0) = 0
[pid 3705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3705] write(3, "1000", 4) = 4
[pid 3705] close(3) = 0
[pid 3705] memfd_create("syzkaller", 0) = 3
[pid 3705] ftruncate(3, 16777216) = 0
[pid 3705] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3705] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3705] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3705] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3705] ioctl(4, LOOP_CLR_FD) = 0
[pid 3705] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3705] close(4) = 0
[pid 3705] close(3) = 0
[pid 3705] creat("./bus", 000) = 3
[pid 3705] exit_group(0) = ?
[pid 3705] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3705, si_uid=0, si_status=0, si_utime=6, si_stime=16} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3706
./strace-static-x86_64: Process 3706 attached
[pid 3706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3706] setpgid(0, 0) = 0
[pid 3706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3706] write(3, "1000", 4) = 4
[pid 3706] close(3) = 0
[pid 3706] memfd_create("syzkaller", 0) = 3
[pid 3706] ftruncate(3, 16777216) = 0
[pid 3706] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3706] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3706] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3706] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3706] ioctl(4, LOOP_CLR_FD) = 0
[pid 3706] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3706] close(4) = 0
[pid 3706] close(3) = 0
[pid 3706] creat("./bus", 000) = 3
[pid 3706] exit_group(0) = ?
[pid 3706] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3706, si_uid=0, si_status=0, si_utime=4, si_stime=17} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3707
./strace-static-x86_64: Process 3707 attached
[pid 3707] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3707] setpgid(0, 0) = 0
[pid 3707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3707] write(3, "1000", 4) = 4
[pid 3707] close(3) = 0
[pid 3707] memfd_create("syzkaller", 0) = 3
[pid 3707] ftruncate(3, 16777216) = 0
[pid 3707] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3707] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3707] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3707] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3707] ioctl(4, LOOP_CLR_FD) = 0
[pid 3707] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3707] close(4) = 0
[pid 3707] close(3) = 0
[pid 3707] creat("./bus", 000) = 3
[pid 3707] exit_group(0) = ?
[pid 3707] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3707, si_uid=0, si_status=0, si_utime=6, si_stime=17} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3708
./strace-static-x86_64: Process 3708 attached
[pid 3708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3708] setpgid(0, 0) = 0
[pid 3708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3708] write(3, "1000", 4) = 4
[pid 3708] close(3) = 0
[pid 3708] memfd_create("syzkaller", 0) = 3
[pid 3708] ftruncate(3, 16777216) = 0
[pid 3708] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3708] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3708] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3708] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3708] ioctl(4, LOOP_CLR_FD) = 0
[pid 3708] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3708] close(4) = 0
[pid 3708] close(3) = 0
[pid 3708] creat("./bus", 000) = 3
[pid 3708] exit_group(0) = ?
[pid 3708] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3708, si_uid=0, si_status=0, si_utime=5, si_stime=15} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3709
./strace-static-x86_64: Process 3709 attached
[pid 3709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3709] setpgid(0, 0) = 0
[pid 3709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3709] write(3, "1000", 4) = 4
[pid 3709] close(3) = 0
[pid 3709] memfd_create("syzkaller", 0) = 3
[pid 3709] ftruncate(3, 16777216) = 0
[pid 3709] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3709] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3709] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3709] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3709] ioctl(4, LOOP_CLR_FD) = 0
[pid 3709] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3709] close(4) = 0
[pid 3709] close(3) = 0
[pid 3709] creat("./bus", 000) = 3
[pid 3709] exit_group(0) = ?
[pid 3709] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3709, si_uid=0, si_status=0, si_utime=2, si_stime=21} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3710
./strace-static-x86_64: Process 3710 attached
[pid 3710] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3710] setpgid(0, 0) = 0
[pid 3710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3710] write(3, "1000", 4) = 4
[pid 3710] close(3) = 0
[pid 3710] memfd_create("syzkaller", 0) = 3
[pid 3710] ftruncate(3, 16777216) = 0
[pid 3710] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3710] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3710] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3710] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3710] ioctl(4, LOOP_CLR_FD) = 0
[pid 3710] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3710] close(4) = 0
[pid 3710] close(3) = 0
[pid 3710] creat("./bus", 000) = 3
[pid 3710] exit_group(0) = ?
[pid 3710] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3710, si_uid=0, si_status=0, si_utime=4, si_stime=17} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3711
./strace-static-x86_64: Process 3711 attached
[pid 3711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3711] setpgid(0, 0) = 0
[pid 3711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3711] write(3, "1000", 4) = 4
[pid 3711] close(3) = 0
[pid 3711] memfd_create("syzkaller", 0) = 3
[pid 3711] ftruncate(3, 16777216) = 0
[pid 3711] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3711] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3711] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3711] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3711] ioctl(4, LOOP_CLR_FD) = 0
[pid 3711] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3711] close(4) = 0
[pid 3711] close(3) = 0
[pid 3711] creat("./bus", 000) = 3
[pid 3711] exit_group(0) = ?
[pid 3711] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3711, si_uid=0, si_status=0, si_utime=5, si_stime=16} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3712
./strace-static-x86_64: Process 3712 attached
[pid 3712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3712] setpgid(0, 0) = 0
[pid 3712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3712] write(3, "1000", 4) = 4
[pid 3712] close(3) = 0
[pid 3712] memfd_create("syzkaller", 0) = 3
[pid 3712] ftruncate(3, 16777216) = 0
[pid 3712] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3712] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3712] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3712] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3712] ioctl(4, LOOP_CLR_FD) = 0
[pid 3712] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3712] close(4) = 0
[pid 3712] close(3) = 0
[pid 3712] creat("./bus", 000) = 3
[pid 3712] exit_group(0) = ?
[pid 3712] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3712, si_uid=0, si_status=0, si_utime=7, si_stime=14} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3713
./strace-static-x86_64: Process 3713 attached
[pid 3713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3713] setpgid(0, 0) = 0
[pid 3713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3713] write(3, "1000", 4) = 4
[pid 3713] close(3) = 0
[pid 3713] memfd_create("syzkaller", 0) = 3
[pid 3713] ftruncate(3, 16777216) = 0
[pid 3713] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3713] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3713] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3713] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3713] ioctl(4, LOOP_CLR_FD) = 0
[pid 3713] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3713] close(4) = 0
[pid 3713] close(3) = 0
[pid 3713] creat("./bus", 000) = 3
[pid 3713] exit_group(0) = ?
[pid 3713] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3713, si_uid=0, si_status=0, si_utime=5, si_stime=16} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3714
./strace-static-x86_64: Process 3714 attached
[pid 3714] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3714] setpgid(0, 0) = 0
[pid 3714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3714] write(3, "1000", 4) = 4
[pid 3714] close(3) = 0
[pid 3714] memfd_create("syzkaller", 0) = 3
[pid 3714] ftruncate(3, 16777216) = 0
[pid 3714] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3714] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3714] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3714] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3714] ioctl(4, LOOP_CLR_FD) = 0
[pid 3714] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3714] close(4) = 0
[pid 3714] close(3) = 0
[pid 3714] creat("./bus", 000) = 3
[pid 3714] exit_group(0) = ?
[pid 3714] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3714, si_uid=0, si_status=0, si_utime=2, si_stime=20} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3715
./strace-static-x86_64: Process 3715 attached
[pid 3715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3715] setpgid(0, 0) = 0
[pid 3715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3715] write(3, "1000", 4) = 4
[pid 3715] close(3) = 0
[pid 3715] memfd_create("syzkaller", 0) = 3
[pid 3715] ftruncate(3, 16777216) = 0
[pid 3715] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3715] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3715] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3715] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3715] ioctl(4, LOOP_CLR_FD) = 0
[pid 3715] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3715] close(4) = 0
[pid 3715] close(3) = 0
[pid 3715] creat("./bus", 000) = 3
[pid 3715] exit_group(0) = ?
[pid 3715] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3715, si_uid=0, si_status=0, si_utime=1, si_stime=21} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3716
./strace-static-x86_64: Process 3716 attached
[pid 3716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3716] setpgid(0, 0) = 0
[pid 3716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3716] write(3, "1000", 4) = 4
[pid 3716] close(3) = 0
[pid 3716] memfd_create("syzkaller", 0) = 3
[pid 3716] ftruncate(3, 16777216) = 0
[pid 3716] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3716] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3716] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3716] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3716] ioctl(4, LOOP_CLR_FD) = 0
[pid 3716] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3716] close(4) = 0
[pid 3716] close(3) = 0
[pid 3716] creat("./bus", 000) = 3
[pid 3716] exit_group(0) = ?
[pid 3716] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3716, si_uid=0, si_status=0, si_utime=3, si_stime=19} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3717
./strace-static-x86_64: Process 3717 attached
[pid 3717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3717] setpgid(0, 0) = 0
[pid 3717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3717] write(3, "1000", 4) = 4
[pid 3717] close(3) = 0
[pid 3717] memfd_create("syzkaller", 0) = 3
[pid 3717] ftruncate(3, 16777216) = 0
[pid 3717] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3717] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3717] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3717] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3717] ioctl(4, LOOP_CLR_FD) = 0
[pid 3717] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3717] close(4) = 0
[pid 3717] close(3) = 0
[pid 3717] creat("./bus", 000) = 3
[pid 3717] exit_group(0) = ?
[pid 3717] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3717, si_uid=0, si_status=0, si_utime=9, si_stime=12} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3718
./strace-static-x86_64: Process 3718 attached
[pid 3718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3718] setpgid(0, 0) = 0
[pid 3718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3718] write(3, "1000", 4) = 4
[pid 3718] close(3) = 0
[pid 3718] memfd_create("syzkaller", 0) = 3
[pid 3718] ftruncate(3, 16777216) = 0
[pid 3718] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3718] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3718] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3718] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3718] ioctl(4, LOOP_CLR_FD) = 0
[pid 3718] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3718] close(4) = 0
[pid 3718] close(3) = 0
[pid 3718] creat("./bus", 000) = 3
[pid 3718] exit_group(0) = ?
[pid 3718] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3718, si_uid=0, si_status=0, si_utime=5, si_stime=16} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3719
./strace-static-x86_64: Process 3719 attached
[pid 3719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3719] setpgid(0, 0) = 0
[pid 3719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3719] write(3, "1000", 4) = 4
[pid 3719] close(3) = 0
[pid 3719] memfd_create("syzkaller", 0) = 3
[pid 3719] ftruncate(3, 16777216) = 0
[pid 3719] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3719] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3719] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3719] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3719] ioctl(4, LOOP_CLR_FD) = 0
[pid 3719] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3719] close(4) = 0
[pid 3719] close(3) = 0
[pid 3719] creat("./bus", 000) = 3
[pid 3719] exit_group(0) = ?
[pid 3719] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3719, si_uid=0, si_status=0, si_utime=4, si_stime=16} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3720
./strace-static-x86_64: Process 3720 attached
[pid 3720] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3720] setpgid(0, 0) = 0
[pid 3720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3720] write(3, "1000", 4) = 4
[pid 3720] close(3) = 0
[pid 3720] memfd_create("syzkaller", 0) = 3
[pid 3720] ftruncate(3, 16777216) = 0
[pid 3720] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3720] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3720] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3720] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3720] ioctl(4, LOOP_CLR_FD) = 0
[pid 3720] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3720] close(4) = 0
[pid 3720] close(3) = 0
[pid 3720] creat("./bus", 000) = 3
[pid 3720] exit_group(0) = ?
[pid 3720] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3720, si_uid=0, si_status=0, si_utime=5, si_stime=16} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3721
./strace-static-x86_64: Process 3721 attached
[pid 3721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3721] setpgid(0, 0) = 0
[pid 3721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3721] write(3, "1000", 4) = 4
[pid 3721] close(3) = 0
[pid 3721] memfd_create("syzkaller", 0) = 3
[pid 3721] ftruncate(3, 16777216) = 0
[pid 3721] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3721] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3721] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3721] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3721] ioctl(4, LOOP_CLR_FD) = 0
[pid 3721] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3721] close(4) = 0
[pid 3721] close(3) = 0
[pid 3721] creat("./bus", 000) = 3
[pid 3721] exit_group(0) = ?
[pid 3721] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3721, si_uid=0, si_status=0, si_utime=5, si_stime=19} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3722
./strace-static-x86_64: Process 3722 attached
[pid 3722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3722] setpgid(0, 0) = 0
[pid 3722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3722] write(3, "1000", 4) = 4
[pid 3722] close(3) = 0
[pid 3722] memfd_create("syzkaller", 0) = 3
[pid 3722] ftruncate(3, 16777216) = 0
[pid 3722] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3722] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3722] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3722] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3722] ioctl(4, LOOP_CLR_FD) = 0
[pid 3722] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3722] close(4) = 0
[pid 3722] close(3) = 0
[pid 3722] creat("./bus", 000) = 3
[pid 3722] exit_group(0) = ?
[pid 3722] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3722, si_uid=0, si_status=0, si_utime=4, si_stime=17} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3723
./strace-static-x86_64: Process 3723 attached
[pid 3723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3723] setpgid(0, 0) = 0
[pid 3723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3723] write(3, "1000", 4) = 4
[pid 3723] close(3) = 0
[pid 3723] memfd_create("syzkaller", 0) = 3
[pid 3723] ftruncate(3, 16777216) = 0
[pid 3723] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3723] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3723] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3723] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3723] ioctl(4, LOOP_CLR_FD) = 0
[pid 3723] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3723] close(4) = 0
[pid 3723] close(3) = 0
[pid 3723] creat("./bus", 000) = 3
[pid 3723] exit_group(0) = ?
[pid 3723] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3723, si_uid=0, si_status=0, si_utime=6, si_stime=16} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3724
./strace-static-x86_64: Process 3724 attached
[pid 3724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3724] setpgid(0, 0) = 0
[pid 3724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3724] write(3, "1000", 4) = 4
[pid 3724] close(3) = 0
[pid 3724] memfd_create("syzkaller", 0) = 3
[pid 3724] ftruncate(3, 16777216) = 0
[pid 3724] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3724] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3724] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3724] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3724] ioctl(4, LOOP_CLR_FD) = 0
[pid 3724] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3724] close(4) = 0
[pid 3724] close(3) = 0
[pid 3724] creat("./bus", 000) = 3
[pid 3724] exit_group(0) = ?
[pid 3724] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3724, si_uid=0, si_status=0, si_utime=3, si_stime=19} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3725
./strace-static-x86_64: Process 3725 attached
[pid 3725] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3725] setpgid(0, 0) = 0
[pid 3725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3725] write(3, "1000", 4) = 4
[pid 3725] close(3) = 0
[pid 3725] memfd_create("syzkaller", 0) = 3
[pid 3725] ftruncate(3, 16777216) = 0
[pid 3725] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3725] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3725] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3725] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3725] ioctl(4, LOOP_CLR_FD) = 0
[pid 3725] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3725] close(4) = 0
[pid 3725] close(3) = 0
[pid 3725] creat("./bus", 000) = 3
[pid 3725] exit_group(0) = ?
[pid 3725] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3725, si_uid=0, si_status=0, si_utime=6, si_stime=16} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3726
./strace-static-x86_64: Process 3726 attached
[pid 3726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3726] setpgid(0, 0) = 0
[pid 3726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3726] write(3, "1000", 4) = 4
[pid 3726] close(3) = 0
[pid 3726] memfd_create("syzkaller", 0) = 3
[pid 3726] ftruncate(3, 16777216) = 0
[pid 3726] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3726] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3726] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3726] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3726] ioctl(4, LOOP_CLR_FD) = 0
[pid 3726] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3726] close(4) = 0
[pid 3726] close(3) = 0
[pid 3726] creat("./bus", 000) = 3
[pid 3726] exit_group(0) = ?
[pid 3726] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3726, si_uid=0, si_status=0, si_utime=4, si_stime=19} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3727
./strace-static-x86_64: Process 3727 attached
[pid 3727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3727] setpgid(0, 0) = 0
[pid 3727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3727] write(3, "1000", 4) = 4
[pid 3727] close(3) = 0
[pid 3727] memfd_create("syzkaller", 0) = 3
[pid 3727] ftruncate(3, 16777216) = 0
[pid 3727] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3727] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3727] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3727] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3727] ioctl(4, LOOP_CLR_FD) = 0
[pid 3727] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3727] close(4) = 0
[pid 3727] close(3) = 0
[pid 3727] creat("./bus", 000) = 3
[pid 3727] exit_group(0) = ?
[pid 3727] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3727, si_uid=0, si_status=0, si_utime=5, si_stime=19} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3728 attached
, child_tidptr=0x555555cb55d0) = 3728
[pid 3728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3728] setpgid(0, 0) = 0
[pid 3728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3728] write(3, "1000", 4) = 4
[pid 3728] close(3) = 0
[pid 3728] memfd_create("syzkaller", 0) = 3
[pid 3728] ftruncate(3, 16777216) = 0
[pid 3728] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3728] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3728] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3728] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3728] ioctl(4, LOOP_CLR_FD) = 0
[pid 3728] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3728] close(4) = 0
[pid 3728] close(3) = 0
[pid 3728] creat("./bus", 000) = 3
[pid 3728] exit_group(0) = ?
[pid 3728] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3728, si_uid=0, si_status=0, si_utime=3, si_stime=19} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3729
./strace-static-x86_64: Process 3729 attached
[pid 3729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3729] setpgid(0, 0) = 0
[pid 3729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3729] write(3, "1000", 4) = 4
[pid 3729] close(3) = 0
[pid 3729] memfd_create("syzkaller", 0) = 3
[pid 3729] ftruncate(3, 16777216) = 0
[pid 3729] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3729] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3729] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3729] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3729] ioctl(4, LOOP_CLR_FD) = 0
[pid 3729] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3729] close(4) = 0
[pid 3729] close(3) = 0
[pid 3729] creat("./bus", 000) = 3
[pid 3729] exit_group(0) = ?
[pid 3729] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3729, si_uid=0, si_status=0, si_utime=7, si_stime=14} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3730
./strace-static-x86_64: Process 3730 attached
[pid 3730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3730] setpgid(0, 0) = 0
[pid 3730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3730] write(3, "1000", 4) = 4
[pid 3730] close(3) = 0
[pid 3730] memfd_create("syzkaller", 0) = 3
[pid 3730] ftruncate(3, 16777216) = 0
[pid 3730] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3730] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3730] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3730] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3730] ioctl(4, LOOP_CLR_FD) = 0
[pid 3730] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3730] close(4) = 0
[pid 3730] close(3) = 0
[pid 3730] creat("./bus", 000) = 3
[pid 3730] exit_group(0) = ?
[pid 3730] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3730, si_uid=0, si_status=0, si_utime=5, si_stime=17} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3731
./strace-static-x86_64: Process 3731 attached
[pid 3731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3731] setpgid(0, 0) = 0
[pid 3731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3731] write(3, "1000", 4) = 4
[pid 3731] close(3) = 0
[pid 3731] memfd_create("syzkaller", 0) = 3
[pid 3731] ftruncate(3, 16777216) = 0
[pid 3731] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3731] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3731] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3731] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3731] ioctl(4, LOOP_CLR_FD) = 0
[pid 3731] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3731] close(4) = 0
[pid 3731] close(3) = 0
[pid 3731] creat("./bus", 000) = 3
[pid 3731] exit_group(0) = ?
[pid 3731] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3731, si_uid=0, si_status=0, si_utime=3, si_stime=18} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3732
./strace-static-x86_64: Process 3732 attached
[pid 3732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3732] setpgid(0, 0) = 0
[pid 3732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3732] write(3, "1000", 4) = 4
[pid 3732] close(3) = 0
[pid 3732] memfd_create("syzkaller", 0) = 3
[pid 3732] ftruncate(3, 16777216) = 0
[pid 3732] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3732] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3732] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3732] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3732] ioctl(4, LOOP_CLR_FD) = 0
[pid 3732] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3732] close(4) = 0
[pid 3732] close(3) = 0
[pid 3732] creat("./bus", 000) = 3
[pid 3732] exit_group(0) = ?
[pid 3732] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3732, si_uid=0, si_status=0, si_utime=3, si_stime=19} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3733
./strace-static-x86_64: Process 3733 attached
[pid 3733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3733] setpgid(0, 0) = 0
[pid 3733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3733] write(3, "1000", 4) = 4
[pid 3733] close(3) = 0
[pid 3733] memfd_create("syzkaller", 0) = 3
[pid 3733] ftruncate(3, 16777216) = 0
[pid 3733] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3733] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3733] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3733] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3733] ioctl(4, LOOP_CLR_FD) = 0
[pid 3733] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3733] close(4) = 0
[pid 3733] close(3) = 0
[pid 3733] creat("./bus", 000) = 3
[pid 3733] exit_group(0) = ?
[pid 3733] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3733, si_uid=0, si_status=0, si_utime=8, si_stime=13} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3734
./strace-static-x86_64: Process 3734 attached
[pid 3734] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3734] setpgid(0, 0) = 0
[pid 3734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3734] write(3, "1000", 4) = 4
[pid 3734] close(3) = 0
[pid 3734] memfd_create("syzkaller", 0) = 3
[pid 3734] ftruncate(3, 16777216) = 0
[pid 3734] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3734] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3734] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3734] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3734] ioctl(4, LOOP_CLR_FD) = 0
[pid 3734] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3734] close(4) = 0
[pid 3734] close(3) = 0
[pid 3734] creat("./bus", 000) = 3
[pid 3734] exit_group(0) = ?
[pid 3734] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3734, si_uid=0, si_status=0, si_utime=6, si_stime=18} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3735
./strace-static-x86_64: Process 3735 attached
[pid 3735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3735] setpgid(0, 0) = 0
[pid 3735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3735] write(3, "1000", 4) = 4
[pid 3735] close(3) = 0
[pid 3735] memfd_create("syzkaller", 0) = 3
[pid 3735] ftruncate(3, 16777216) = 0
[pid 3735] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3735] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3735] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3735] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3735] ioctl(4, LOOP_CLR_FD) = 0
[pid 3735] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3735] close(4) = 0
[pid 3735] close(3) = 0
[pid 3735] creat("./bus", 000) = 3
[pid 3735] exit_group(0) = ?
[pid 3735] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3735, si_uid=0, si_status=0, si_utime=7, si_stime=14} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3736
./strace-static-x86_64: Process 3736 attached
[pid 3736] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3736] setpgid(0, 0) = 0
[pid 3736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3736] write(3, "1000", 4) = 4
[pid 3736] close(3) = 0
[pid 3736] memfd_create("syzkaller", 0) = 3
[pid 3736] ftruncate(3, 16777216) = 0
[pid 3736] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3736] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3736] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3736] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3736] ioctl(4, LOOP_CLR_FD) = 0
[pid 3736] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3736] close(4) = 0
[pid 3736] close(3) = 0
[pid 3736] creat("./bus", 000) = 3
[pid 3736] exit_group(0) = ?
[pid 3736] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3736, si_uid=0, si_status=0, si_utime=4, si_stime=18} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3737
./strace-static-x86_64: Process 3737 attached
[pid 3737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3737] setpgid(0, 0) = 0
[pid 3737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3737] write(3, "1000", 4) = 4
[pid 3737] close(3) = 0
[pid 3737] memfd_create("syzkaller", 0) = 3
[pid 3737] ftruncate(3, 16777216) = 0
[pid 3737] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3737] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3737] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3737] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3737] ioctl(4, LOOP_CLR_FD) = 0
[pid 3737] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3737] close(4) = 0
[pid 3737] close(3) = 0
[pid 3737] creat("./bus", 000) = 3
[pid 3737] exit_group(0) = ?
[pid 3737] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3737, si_uid=0, si_status=0, si_utime=4, si_stime=17} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3738
./strace-static-x86_64: Process 3738 attached
[pid 3738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3738] setpgid(0, 0) = 0
[pid 3738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3738] write(3, "1000", 4) = 4
[pid 3738] close(3) = 0
[pid 3738] memfd_create("syzkaller", 0) = 3
[pid 3738] ftruncate(3, 16777216) = 0
[pid 3738] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3738] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3738] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3738] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3738] ioctl(4, LOOP_CLR_FD) = 0
[pid 3738] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3738] close(4) = 0
[pid 3738] close(3) = 0
[pid 3738] creat("./bus", 000) = 3
[pid 3738] exit_group(0) = ?
[pid 3738] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3738, si_uid=0, si_status=0, si_utime=9, si_stime=10} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3739
./strace-static-x86_64: Process 3739 attached
[pid 3739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3739] setpgid(0, 0) = 0
[pid 3739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3739] write(3, "1000", 4) = 4
[pid 3739] close(3) = 0
[pid 3739] memfd_create("syzkaller", 0) = 3
[pid 3739] ftruncate(3, 16777216) = 0
[pid 3739] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3739] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3739] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3739] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3739] ioctl(4, LOOP_CLR_FD) = 0
[pid 3739] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3739] close(4) = 0
[pid 3739] close(3) = 0
[pid 3739] creat("./bus", 000) = 3
[pid 3739] exit_group(0) = ?
[pid 3739] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3739, si_uid=0, si_status=0, si_utime=5, si_stime=18} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3740
./strace-static-x86_64: Process 3740 attached
[pid 3740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3740] setpgid(0, 0) = 0
[pid 3740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3740] write(3, "1000", 4) = 4
[pid 3740] close(3) = 0
[pid 3740] memfd_create("syzkaller", 0) = 3
[pid 3740] ftruncate(3, 16777216) = 0
[pid 3740] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3740] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3740] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3740] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3740] ioctl(4, LOOP_CLR_FD) = 0
[pid 3740] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3740] close(4) = 0
[pid 3740] close(3) = 0
[pid 3740] creat("./bus", 000) = 3
[pid 3740] exit_group(0) = ?
[pid 3740] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3740, si_uid=0, si_status=0, si_utime=3, si_stime=19} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3741
./strace-static-x86_64: Process 3741 attached
[pid 3741] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3741] setpgid(0, 0) = 0
[pid 3741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3741] write(3, "1000", 4) = 4
[pid 3741] close(3) = 0
[pid 3741] memfd_create("syzkaller", 0) = 3
[pid 3741] ftruncate(3, 16777216) = 0
[pid 3741] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3741] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3741] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3741] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3741] ioctl(4, LOOP_CLR_FD) = 0
[pid 3741] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3741] close(4) = 0
[pid 3741] close(3) = 0
[pid 3741] creat("./bus", 000) = 3
[pid 3741] exit_group(0) = ?
[pid 3741] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3741, si_uid=0, si_status=0, si_utime=3, si_stime=21} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3742
./strace-static-x86_64: Process 3742 attached
[pid 3742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3742] setpgid(0, 0) = 0
[pid 3742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3742] write(3, "1000", 4) = 4
[pid 3742] close(3) = 0
[pid 3742] memfd_create("syzkaller", 0) = 3
[pid 3742] ftruncate(3, 16777216) = 0
[pid 3742] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3742] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3742] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3742] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3742] ioctl(4, LOOP_CLR_FD) = 0
[pid 3742] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3742] close(4) = 0
[pid 3742] close(3) = 0
[pid 3742] creat("./bus", 000) = 3
[pid 3742] exit_group(0) = ?
[pid 3742] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3742, si_uid=0, si_status=0, si_utime=6, si_stime=14} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3743
./strace-static-x86_64: Process 3743 attached
[pid 3743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3743] setpgid(0, 0) = 0
[pid 3743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3743] write(3, "1000", 4) = 4
[pid 3743] close(3) = 0
[pid 3743] memfd_create("syzkaller", 0) = 3
[pid 3743] ftruncate(3, 16777216) = 0
[pid 3743] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3743] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3743] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3743] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3743] ioctl(4, LOOP_CLR_FD) = 0
[pid 3743] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3743] close(4) = 0
[pid 3743] close(3) = 0
[pid 3743] creat("./bus", 000) = 3
[pid 3743] exit_group(0) = ?
[pid 3743] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3743, si_uid=0, si_status=0, si_utime=5, si_stime=15} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3744
./strace-static-x86_64: Process 3744 attached
[pid 3744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3744] setpgid(0, 0) = 0
[pid 3744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3744] write(3, "1000", 4) = 4
[pid 3744] close(3) = 0
[pid 3744] memfd_create("syzkaller", 0) = 3
[pid 3744] ftruncate(3, 16777216) = 0
[pid 3744] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3744] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3744] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3744] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3744] ioctl(4, LOOP_CLR_FD) = 0
[pid 3744] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3744] close(4) = 0
[pid 3744] close(3) = 0
[pid 3744] creat("./bus", 000) = 3
[pid 3744] exit_group(0) = ?
[pid 3744] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3744, si_uid=0, si_status=0, si_utime=5, si_stime=18} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3745
./strace-static-x86_64: Process 3745 attached
[pid 3745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3745] setpgid(0, 0) = 0
[pid 3745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3745] write(3, "1000", 4) = 4
[pid 3745] close(3) = 0
[pid 3745] memfd_create("syzkaller", 0) = 3
[pid 3745] ftruncate(3, 16777216) = 0
[pid 3745] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3745] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3745] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3745] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3745] ioctl(4, LOOP_CLR_FD) = 0
[pid 3745] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3745] close(4) = 0
[pid 3745] close(3) = 0
[pid 3745] creat("./bus", 000) = 3
[pid 3745] exit_group(0) = ?
[pid 3745] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3745, si_uid=0, si_status=0, si_utime=2, si_stime=20} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3746
./strace-static-x86_64: Process 3746 attached
[pid 3746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3746] setpgid(0, 0) = 0
[pid 3746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3746] write(3, "1000", 4) = 4
[pid 3746] close(3) = 0
[pid 3746] memfd_create("syzkaller", 0) = 3
[pid 3746] ftruncate(3, 16777216) = 0
[pid 3746] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3746] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3746] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3746] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3746] ioctl(4, LOOP_CLR_FD) = 0
[pid 3746] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3746] close(4) = 0
[pid 3746] close(3) = 0
[pid 3746] creat("./bus", 000) = 3
[pid 3746] exit_group(0) = ?
[pid 3746] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3746, si_uid=0, si_status=0, si_utime=5, si_stime=18} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3747
./strace-static-x86_64: Process 3747 attached
[pid 3747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3747] setpgid(0, 0) = 0
[pid 3747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3747] write(3, "1000", 4) = 4
[pid 3747] close(3) = 0
[pid 3747] memfd_create("syzkaller", 0) = 3
[pid 3747] ftruncate(3, 16777216) = 0
[pid 3747] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3747] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3747] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3747] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3747] ioctl(4, LOOP_CLR_FD) = 0
[pid 3747] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3747] close(4) = 0
[pid 3747] close(3) = 0
[pid 3747] creat("./bus", 000) = 3
[pid 3747] exit_group(0) = ?
[pid 3747] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3747, si_uid=0, si_status=0, si_utime=4, si_stime=18} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3748
./strace-static-x86_64: Process 3748 attached
[pid 3748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3748] setpgid(0, 0) = 0
[pid 3748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3748] write(3, "1000", 4) = 4
[pid 3748] close(3) = 0
[pid 3748] memfd_create("syzkaller", 0) = 3
[pid 3748] ftruncate(3, 16777216) = 0
[pid 3748] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3748] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3748] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3748] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3748] ioctl(4, LOOP_CLR_FD) = 0
[pid 3748] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3748] close(4) = 0
[pid 3748] close(3) = 0
[pid 3748] creat("./bus", 000) = 3
[pid 3748] exit_group(0) = ?
[pid 3748] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3748, si_uid=0, si_status=0, si_utime=4, si_stime=15} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3749
./strace-static-x86_64: Process 3749 attached
[pid 3749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3749] setpgid(0, 0) = 0
[pid 3749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3749] write(3, "1000", 4) = 4
[pid 3749] close(3) = 0
[pid 3749] memfd_create("syzkaller", 0) = 3
[pid 3749] ftruncate(3, 16777216) = 0
[pid 3749] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3749] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3749] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3749] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3749] ioctl(4, LOOP_CLR_FD) = 0
[pid 3749] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3749] close(4) = 0
[pid 3749] close(3) = 0
[pid 3749] creat("./bus", 000) = 3
[pid 3749] exit_group(0) = ?
[pid 3749] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3749, si_uid=0, si_status=0, si_utime=2, si_stime=21} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3750
./strace-static-x86_64: Process 3750 attached
[pid 3750] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3750] setpgid(0, 0) = 0
[pid 3750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3750] write(3, "1000", 4) = 4
[pid 3750] close(3) = 0
[pid 3750] memfd_create("syzkaller", 0) = 3
[pid 3750] ftruncate(3, 16777216) = 0
[pid 3750] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3750] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3750] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3750] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3750] ioctl(4, LOOP_CLR_FD) = 0
[pid 3750] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3750] close(4) = 0
[pid 3750] close(3) = 0
[pid 3750] creat("./bus", 000) = 3
[pid 3750] exit_group(0) = ?
[pid 3750] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3750, si_uid=0, si_status=0, si_utime=4, si_stime=18} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3751
./strace-static-x86_64: Process 3751 attached
[pid 3751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3751] setpgid(0, 0) = 0
[pid 3751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3751] write(3, "1000", 4) = 4
[pid 3751] close(3) = 0
[pid 3751] memfd_create("syzkaller", 0) = 3
[pid 3751] ftruncate(3, 16777216) = 0
[pid 3751] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3751] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3751] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3751] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3751] ioctl(4, LOOP_CLR_FD) = 0
[pid 3751] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3751] close(4) = 0
[pid 3751] close(3) = 0
[pid 3751] creat("./bus", 000) = 3
[pid 3751] exit_group(0) = ?
[pid 3751] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3751, si_uid=0, si_status=0, si_utime=7, si_stime=15} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3752
./strace-static-x86_64: Process 3752 attached
[pid 3752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3752] setpgid(0, 0) = 0
[pid 3752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3752] write(3, "1000", 4) = 4
[pid 3752] close(3) = 0
[pid 3752] memfd_create("syzkaller", 0) = 3
[pid 3752] ftruncate(3, 16777216) = 0
[pid 3752] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3752] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3752] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3752] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3752] ioctl(4, LOOP_CLR_FD) = 0
[pid 3752] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3752] close(4) = 0
[pid 3752] close(3) = 0
[pid 3752] creat("./bus", 000) = 3
[pid 3752] exit_group(0) = ?
[pid 3752] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3752, si_uid=0, si_status=0, si_utime=2, si_stime=20} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3753
./strace-static-x86_64: Process 3753 attached
[pid 3753] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3753] setpgid(0, 0) = 0
[pid 3753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3753] write(3, "1000", 4) = 4
[pid 3753] close(3) = 0
[pid 3753] memfd_create("syzkaller", 0) = 3
[pid 3753] ftruncate(3, 16777216) = 0
[pid 3753] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3753] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3753] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3753] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3753] ioctl(4, LOOP_CLR_FD) = 0
[pid 3753] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3753] close(4) = 0
[pid 3753] close(3) = 0
[pid 3753] creat("./bus", 000) = 3
[pid 3753] exit_group(0) = ?
[pid 3753] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3753, si_uid=0, si_status=0, si_utime=2, si_stime=21} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3754
./strace-static-x86_64: Process 3754 attached
[pid 3754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3754] setpgid(0, 0) = 0
[pid 3754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3754] write(3, "1000", 4) = 4
[pid 3754] close(3) = 0
[pid 3754] memfd_create("syzkaller", 0) = 3
[pid 3754] ftruncate(3, 16777216) = 0
[pid 3754] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3754] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3754] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3754] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3754] ioctl(4, LOOP_CLR_FD) = 0
[pid 3754] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3754] close(4) = 0
[pid 3754] close(3) = 0
[pid 3754] creat("./bus", 000) = 3
[pid 3754] exit_group(0) = ?
[pid 3754] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3754, si_uid=0, si_status=0, si_utime=8, si_stime=13} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3755
./strace-static-x86_64: Process 3755 attached
[pid 3755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3755] setpgid(0, 0) = 0
[pid 3755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3755] write(3, "1000", 4) = 4
[pid 3755] close(3) = 0
[pid 3755] memfd_create("syzkaller", 0) = 3
[pid 3755] ftruncate(3, 16777216) = 0
[pid 3755] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3755] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3755] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3755] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3755] ioctl(4, LOOP_CLR_FD) = 0
[pid 3755] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3755] close(4) = 0
[pid 3755] close(3) = 0
[pid 3755] creat("./bus", 000) = 3
[pid 3755] exit_group(0) = ?
[pid 3755] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3755, si_uid=0, si_status=0, si_utime=5, si_stime=17} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3756
./strace-static-x86_64: Process 3756 attached
[pid 3756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3756] setpgid(0, 0) = 0
[pid 3756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3756] write(3, "1000", 4) = 4
[pid 3756] close(3) = 0
[pid 3756] memfd_create("syzkaller", 0) = 3
[pid 3756] ftruncate(3, 16777216) = 0
[pid 3756] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[pid 3756] munmap(0x7f492e9b0000, 16777216) = 0
[pid 3756] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 3756] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3756] ioctl(4, LOOP_CLR_FD) = 0
[pid 3756] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy)
[pid 3756] close(4) = 0
[pid 3756] close(3) = 0
[pid 3756] creat("./bus", 000) = 3
[pid 3756] exit_group(0) = ?
[pid 3756] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3756, si_uid=0, si_status=0, si_utime=4, si_stime=16} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = 0
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555cb55d0) = 3757
./strace-static-x86_64: Process 3757 attached
[pid 3757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 3757] setpgid(0, 0) = 0
[pid 3757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 3757] write(3, "1000", 4) = 4
[pid 3757] close(3) = 0
[pid 3757] memfd_create("syzkaller", 0) = 3
[pid 3757] ftruncate(3, 16777216) = 0
[pid 3757] mmap(NULL, 16777216, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7f492e9b0000
[ 90.385289][ T52] ------------[ cut here ]------------
[ 90.390991][ T52] WARNING: CPU: 0 PID: 52 at include/linux/backing-dev.h:246 folio_account_dirtied+0x4e9/0x6e0
[ 90.401367][ T52] Modules linked in:
[ 90.405276][ T52] CPU: 0 PID: 52 Comm: kworker/0:1H Not tainted 6.1.0-rc6-syzkaller #0
[ 90.413535][ T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 90.423605][ T52] Workqueue: glock_workqueue glock_work_func
[ 90.429629][ T52] RIP: 0010:folio_account_dirtied+0x4e9/0x6e0
[ 90.435713][ T52] Code: 5d 41 5e 41 5f 5d c3 e8 75 74 d0 ff 4c 89 ef 4c 89 e6 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 2c b9 2b 00 e8 57 74 d0 ff <0f> 0b e9 8a fd ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 7a fb ff
[ 90.455508][ T52] RSP: 0018:ffffc90000bd77d0 EFLAGS: 00010093
[ 90.461578][ T52] RAX: ffffffff81ba2419 RBX: 0000000000000000 RCX: ffff888018bc57c0
[ 90.469546][ T52] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 90.477510][ T52] RBP: ffff888140c8be78 R08: ffffffff81ba219d R09: ffffed10281917d0
[ 90.485477][ T52] R10: ffffed10281917d0 R11: 1ffff110281917cf R12: dffffc0000000000
[ 90.493444][ T52] R13: ffffea0001dba0c0 R14: 0000000000000001 R15: 1ffff110281917cf
[ 90.501410][ T52] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
[ 90.510337][ T52] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 90.516913][ T52] CR2: 00007f492eac4000 CR3: 0000000027783000 CR4: 00000000003506f0
[ 90.525058][ T52] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 90.533024][ T52] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 90.540993][ T52] Call Trace:
[ 90.544277][ T52]
[ 90.547212][ T52] __folio_mark_dirty+0x125/0x260
[ 90.552244][ T52] mark_buffer_dirty+0x253/0x550
[ 90.557187][ T52] gfs2_unpin+0x10b/0xa20
[ 90.561512][ T52] ? log_pull_tail+0x7e/0x390
[ 90.566215][ T52] buf_lo_after_commit+0x172/0x1d0
[ 90.571337][ T52] ? buf_lo_before_commit+0xe0/0xe0
[ 90.576545][ T52] gfs2_log_flush+0x1179/0x26a0
[ 90.581432][ T52] ? gfs2_ail_drain+0xdb0/0xdb0
[ 90.586291][ T52] ? do_raw_spin_unlock+0x134/0x8a0
[ 90.591501][ T52] inode_go_sync+0x28d/0x520
[ 90.596093][ T52] ? do_error+0x3d5/0x3f0
[ 90.600430][ T52] do_xmote+0x34d/0x13d0
[ 90.604683][ T52] glock_work_func+0x2c2/0x450
[ 90.609450][ T52] process_one_work+0x877/0xdb0
[ 90.614315][ T52] ? worker_detach_from_pool+0x260/0x260
[ 90.619951][ T52] ? _raw_spin_lock_irq+0xba/0xf0
[ 90.624969][ T52] ? _raw_spin_lock_irqsave+0x100/0x100
[ 90.630522][ T52] worker_thread+0xb14/0x1330
[ 90.635226][ T52] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 90.641154][ T52] kthread+0x266/0x300
[ 90.645219][ T52] ? rcu_lock_release+0x20/0x20
[ 90.650066][ T52] ? kthread_blkcg+0xd0/0xd0
[ 90.654655][ T52] ret_from_fork+0x1f/0x30
[ 90.659099][ T52]
[ 90.662113][ T52] Kernel panic - not syncing: panic_on_warn set ...
[ 90.668689][ T52] CPU: 0 PID: 52 Comm: kworker/0:1H Not tainted 6.1.0-rc6-syzkaller #0
[ 90.676921][ T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 90.686968][ T52] Workqueue: glock_workqueue glock_work_func
[ 90.692953][ T52] Call Trace:
[ 90.696227][ T52]
[ 90.699154][ T52] dump_stack_lvl+0x1b1/0x28e
[ 90.703834][ T52] ? nf_tcp_handle_invalid+0x62e/0x62e
[ 90.709290][ T52] ? panic+0x710/0x710
[ 90.713367][ T52] ? vscnprintf+0x59/0x80
[ 90.717705][ T52] ? folio_account_dirtied+0x4d0/0x6e0
[ 90.723161][ T52] panic+0x2d6/0x710
[ 90.727057][ T52] ? __warn+0x131/0x220
[ 90.731308][ T52] ? memcpy_page_flushcache+0xfc/0xfc
[ 90.736686][ T52] ? ret_from_fork+0x1f/0x30
[ 90.741280][ T52] ? folio_account_dirtied+0x4e9/0x6e0
[ 90.746740][ T52] __warn+0x1fa/0x220
[ 90.750810][ T52] ? folio_account_dirtied+0x4e9/0x6e0
[ 90.756274][ T52] report_bug+0x1b3/0x2d0
[ 90.760696][ T52] handle_bug+0x3d/0x70
[ 90.764850][ T52] exc_invalid_op+0x16/0x40
[ 90.769349][ T52] asm_exc_invalid_op+0x16/0x20
[ 90.774198][ T52] RIP: 0010:folio_account_dirtied+0x4e9/0x6e0
[ 90.780260][ T52] Code: 5d 41 5e 41 5f 5d c3 e8 75 74 d0 ff 4c 89 ef 4c 89 e6 48 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 2c b9 2b 00 e8 57 74 d0 ff <0f> 0b e9 8a fd ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 7a fb ff
[ 90.799859][ T52] RSP: 0018:ffffc90000bd77d0 EFLAGS: 00010093
[ 90.805924][ T52] RAX: ffffffff81ba2419 RBX: 0000000000000000 RCX: ffff888018bc57c0
[ 90.813892][ T52] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 90.821858][ T52] RBP: ffff888140c8be78 R08: ffffffff81ba219d R09: ffffed10281917d0
[ 90.829850][ T52] R10: ffffed10281917d0 R11: 1ffff110281917cf R12: dffffc0000000000
[ 90.837819][ T52] R13: ffffea0001dba0c0 R14: 0000000000000001 R15: 1ffff110281917cf
[ 90.845824][ T52] ? folio_account_dirtied+0x26d/0x6e0
[ 90.851286][ T52] ? folio_account_dirtied+0x4e9/0x6e0
[ 90.856760][ T52] __folio_mark_dirty+0x125/0x260
[ 90.861787][ T52] mark_buffer_dirty+0x253/0x550
[ 90.866729][ T52] gfs2_unpin+0x10b/0xa20
[ 90.871076][ T52] ? log_pull_tail+0x7e/0x390
[ 90.875758][ T52] buf_lo_after_commit+0x172/0x1d0
[ 90.880870][ T52] ? buf_lo_before_commit+0xe0/0xe0
[ 90.886066][ T52] gfs2_log_flush+0x1179/0x26a0
[ 90.890941][ T52] ? gfs2_ail_drain+0xdb0/0xdb0
[ 90.895796][ T52] ? do_raw_spin_unlock+0x134/0x8a0
[ 90.901010][ T52] inode_go_sync+0x28d/0x520
[ 90.905604][ T52] ? do_error+0x3d5/0x3f0
[ 90.909965][ T52] do_xmote+0x34d/0x13d0
[ 90.914218][ T52] glock_work_func+0x2c2/0x450
[ 90.919006][ T52] process_one_work+0x877/0xdb0
[ 90.923875][ T52] ? worker_detach_from_pool+0x260/0x260
[ 90.929511][ T52] ? _raw_spin_lock_irq+0xba/0xf0
[ 90.934529][ T52] ? _raw_spin_lock_irqsave+0x100/0x100
[ 90.940079][ T52] worker_thread+0xb14/0x1330
[ 90.944770][ T52] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 90.950672][ T52] kthread+0x266/0x300
[ 90.954736][ T52] ? rcu_lock_release+0x20/0x20
[ 90.959584][ T52] ? kthread_blkcg+0xd0/0xd0
[ 90.964171][ T52] ret_from_fork+0x1f/0x30
[ 90.968599][ T52]
[ 90.971762][ T52] Kernel Offset: disabled
[ 90.976237][ T52] Rebooting in 86400 seconds..