./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1666480410

<...>
Warning: Permanently added '10.128.0.159' (ED25519) to the list of known hosts.
execve("./syz-executor1666480410", ["./syz-executor1666480410"], 0x7fffdb3c7c30 /* 10 vars */) = 0
brk(NULL)                               = 0x55555677f000
brk(0x55555677fd00)                     = 0x55555677fd00
arch_prctl(ARCH_SET_FS, 0x55555677f380) = 0
set_tid_address(0x55555677f650)         = 5068
set_robust_list(0x55555677f660, 24)     = 0
rseq(0x55555677fca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1666480410", 4096) = 28
getrandom("\x7a\x52\x61\x28\x9e\xc7\x8b\x5b", 8, GRND_NONBLOCK) = 8
brk(NULL)                               = 0x55555677fd00
brk(0x5555567a0d00)                     = 0x5555567a0d00
brk(0x5555567a1000)                     = 0x5555567a1000
mprotect(0x7f299b93b000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555677f650) = 5069
./strace-static-x86_64: Process 5069 attached
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5069] set_robust_list(0x55555677f660, 24) = 0
./strace-static-x86_64: Process 5070 attached
[pid  5068] <... clone resumed>, child_tidptr=0x55555677f650) = 5070
[pid  5070] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5070] <... set_robust_list resumed>) = 0
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5069] <... openat resumed>)       = 3
[pid  5069] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5071 attached
 <unfinished ...>
[pid  5070] <... openat resumed>)       = 3
[pid  5069] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5068] <... clone resumed>, child_tidptr=0x55555677f650) = 5071
[pid  5071] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5071] <... set_robust_list resumed>) = 0
[pid  5069] close(3 <unfinished ...>
[pid  5070] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5070] close(3./strace-static-x86_64: Process 5072 attached
 <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5070] <... close resumed>)        = 0
[pid  5069] <... close resumed>)        = 0
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5073 attached
 <unfinished ...>
[pid  5068] <... clone resumed>, child_tidptr=0x55555677f650) = 5072
[pid  5072] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5071] <... openat resumed>)       = 3
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5073] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5072] <... set_robust_list resumed>) = 0
[pid  5071] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5076 attached
./strace-static-x86_64: Process 5075 attached
 <unfinished ...>
[pid  5073] <... set_robust_list resumed>) = 0
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5071] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5076] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5075] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5073] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5071] close(3 <unfinished ...>
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5073
[pid  5068] <... clone resumed>, child_tidptr=0x55555677f650) = 5076
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5075
[pid  5076] <... set_robust_list resumed>) = 0
[pid  5075] <... set_robust_list resumed>) = 0
[pid  5073] <... prctl resumed>)        = 0
[pid  5071] <... close resumed>)        = 0
[pid  5068] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5073] setpgid(0, 0 <unfinished ...>
[pid  5075] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5073] <... setpgid resumed>)      = 0
./strace-static-x86_64: Process 5077 attached
[pid  5077] set_robust_list(0x55555677f660, 24) = 0
./strace-static-x86_64: Process 5078 attached
[pid  5077] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5075] <... prctl resumed>)        = 0
[pid  5073] <... openat resumed>)       = 3
[pid  5068] <... clone resumed>, child_tidptr=0x55555677f650) = 5078
[pid  5078] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5077] <... prctl resumed>)        = 0
[pid  5076] <... openat resumed>)       = 3
[pid  5075] setpgid(0, 0 <unfinished ...>
[pid  5073] write(3, "1000", 4 <unfinished ...>
[pid  5072] <... openat resumed>)       = 3
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5077
[pid  5078] <... set_robust_list resumed>) = 0
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5075] <... setpgid resumed>)      = 0
[pid  5073] <... write resumed>)        = 4
[pid  5077] setpgid(0, 0 <unfinished ...>
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5075] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5073] close(3 <unfinished ...>
[pid  5077] <... setpgid resumed>)      = 0
[pid  5072] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5073] <... close resumed>)        = 0
[pid  5078] <... openat resumed>)       = 3
[pid  5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5076] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5073] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5077] <... openat resumed>)       = 3
[pid  5076] close(3 <unfinished ...>
[pid  5075] <... openat resumed>)       = 3
[pid  5073] <... openat resumed>)       = 3
[pid  5072] close(3 <unfinished ...>
[pid  5078] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  5077] write(3, "1000", 4 <unfinished ...>
[pid  5076] <... close resumed>)        = 0
[pid  5075] write(3, "1000", 4 <unfinished ...>
[pid  5073] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5072] <... close resumed>)        = 0
[pid  5078] close(3 <unfinished ...>
[pid  5077] <... write resumed>)        = 4
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5075] <... write resumed>)        = 4
[pid  5073] <... openat resumed>)       = 4
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5081 attached
./strace-static-x86_64: Process 5080 attached
 <unfinished ...>
[pid  5078] <... close resumed>)        = 0
[pid  5077] close(3 <unfinished ...>
[pid  5075] close(3 <unfinished ...>
[pid  5073] sendfile(4, 3, [88] <unfinished ...>
[pid  5081] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5080] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5077] <... close resumed>)        = 0
[pid  5075] <... close resumed>)        = 0
./strace-static-x86_64: Process 5082 attached
[pid  5081] <... set_robust_list resumed>) = 0
[pid  5080] <... set_robust_list resumed>) = 0
[pid  5081] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5080] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5077] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5081
[pid  5075] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5082] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5081] <... prctl resumed>)        = 0
[pid  5080] <... prctl resumed>)        = 0
[pid  5082] <... set_robust_list resumed>) = 0
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5082
[pid  5077] <... openat resumed>)       = 3
[pid  5075] <... openat resumed>)       = 3
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5080
[pid  5082] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5081] setpgid(0, 0 <unfinished ...>
[pid  5080] setpgid(0, 0 <unfinished ...>
[pid  5077] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5075] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5077] <... openat resumed>)       = 4
[pid  5075] <... openat resumed>)       = 4
[pid  5077] sendfile(4, 3, [88] <unfinished ...>
[pid  5075] sendfile(4, 3, [88] <unfinished ...>
[pid  5082] <... prctl resumed>)        = 0
[pid  5081] <... setpgid resumed>)      = 0
[pid  5080] <... setpgid resumed>)      = 0
[pid  5082] setpgid(0, 0 <unfinished ...>
[pid  5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5082] <... setpgid resumed>)      = 0
[pid  5081] <... openat resumed>)       = 3
[pid  5080] <... openat resumed>)       = 3
[pid  5080] write(3, "1000", 4 <unfinished ...>
[pid  5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5081] write(3, "1000", 4 <unfinished ...>
[pid  5080] <... write resumed>)        = 4
[pid  5081] <... write resumed>)        = 4
[pid  5080] close(3 <unfinished ...>
[pid  5081] close(3 <unfinished ...>
[pid  5082] <... openat resumed>)       = 3
[pid  5081] <... close resumed>)        = 0
[pid  5080] <... close resumed>)        = 0
[pid  5081] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5080] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5082] write(3, "1000", 4)         = 4
[pid  5082] close(3 <unfinished ...>
[pid  5081] <... openat resumed>)       = 3
[pid  5080] <... openat resumed>)       = 3
[pid  5082] <... close resumed>)        = 0
[pid  5081] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5080] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5082] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5081] <... openat resumed>)       = 4
[pid  5080] <... openat resumed>)       = 4
[pid  5082] <... openat resumed>)       = 3
[pid  5081] sendfile(4, 3, [88] <unfinished ...>
[pid  5080] sendfile(4, 3, [88] <unfinished ...>
[pid  5082] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   57.885840][ T5075] syz-executor166 (5075): drop_caches: 1
[   57.907298][ T5081] syz-executor166 (5081): drop_caches: 1
[   57.914875][ T5073] syz-executor166 (5073): drop_caches: 1
[   57.917551][ T5080] syz-executor166 (5080): drop_caches: 1
[   57.930870][ T5077] syz-executor166 (5077): drop_caches: 1
[   57.941461][ T5082] syz-executor166 (5082): drop_caches: 1
[pid  5082] sendfile(4, 3, [88] <unfinished ...>
[pid  5073] <... sendfile resumed> => [103], 15) = 15
[pid  5081] <... sendfile resumed> => [103], 15) = 15
[pid  5081] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5075] <... sendfile resumed> => [103], 15) = 15
[pid  5073] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5077] <... sendfile resumed> => [103], 15) = 15
[pid  5081] <... memfd_create resumed>) = 5
[pid  5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5075] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5073] <... memfd_create resumed>) = 5
[pid  5075] <... memfd_create resumed>) = 5
[pid  5073] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5077] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5075] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5073] <... mmap resumed>)         = 0x7f299346a000
[   57.997243][ T5077] syz-executor166 (5077): drop_caches: 1
[   57.997347][ T5075] syz-executor166 (5075): drop_caches: 1
[   58.020636][ T5073] syz-executor166 (5073): drop_caches: 1
[   58.026844][ T5081] syz-executor166 (5081): drop_caches: 1
[pid  5077] <... memfd_create resumed>) = 5
[pid  5075] <... mmap resumed>)         = 0x7f299346a000
[pid  5082] <... sendfile resumed> => [103], 15) = 15
[pid  5082] memfd_create("syzkaller", 0) = 5
[pid  5082] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5080] <... sendfile resumed> => [103], 15) = 15
[pid  5077] <... mmap resumed>)         = 0x7f299346a000
[pid  5080] memfd_create("syzkaller", 0) = 5
[pid  5080] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   58.058139][ T5080] syz-executor166 (5080): drop_caches: 1
[   58.067805][ T5082] syz-executor166 (5082): drop_caches: 1
[pid  5081] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5073] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5075] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5082] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5077] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5080] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5081] <... write resumed>)        = 2097152
[pid  5081] munmap(0x7f299346a000, 138412032) = 0
[pid  5077] <... write resumed>)        = 2097152
[pid  5073] <... write resumed>)        = 2097152
[pid  5081] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5077] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5073] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5081] <... openat resumed>)       = 6
[pid  5081] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5073] <... munmap resumed>)       = 0
[pid  5073] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5073] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5075] <... write resumed>)        = 2097152
[pid  5082] <... write resumed>)        = 2097152
[pid  5081] <... ioctl resumed>)        = 0
[pid  5080] <... write resumed>)        = 2097152
[pid  5077] <... munmap resumed>)       = 0
[pid  5073] <... ioctl resumed>)        = 0
[pid  5082] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5081] close(5 <unfinished ...>
[pid  5080] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5077] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5075] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5073] close(5 <unfinished ...>
[pid  5081] <... close resumed>)        = 0
[pid  5077] <... openat resumed>)       = 6
[pid  5073] <... close resumed>)        = 0
[pid  5081] mkdir("./file0", 0777 <unfinished ...>
[pid  5073] mkdir("./file0", 0777 <unfinished ...>
[pid  5077] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5080] <... munmap resumed>)       = 0
[pid  5082] <... munmap resumed>)       = 0
[pid  5081] <... mkdir resumed>)        = 0
[pid  5077] <... ioctl resumed>)        = 0
[pid  5080] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5075] <... munmap resumed>)       = 0
[pid  5073] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  5082] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5081] mount("/dev/loop4", "./file0", "ntfs", 0, "" <unfinished ...>
[pid  5080] <... openat resumed>)       = 6
[pid  5077] close(5 <unfinished ...>
[pid  5075] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5073] mount("/dev/loop1", "./file0", "ntfs", 0, "" <unfinished ...>
[pid  5077] <... close resumed>)        = 0
[pid  5075] <... openat resumed>)       = 6
[pid  5075] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[   58.186985][ T5081] loop4: detected capacity change from 0 to 4096
[   58.198372][ T5073] loop1: detected capacity change from 0 to 4096
[   58.215754][ T5077] loop2: detected capacity change from 0 to 4096
[pid  5077] mkdir("./file0", 0777 <unfinished ...>
[pid  5080] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5077] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  5077] mount("/dev/loop2", "./file0", "ntfs", 0, "" <unfinished ...>
[pid  5082] <... openat resumed>)       = 6
[pid  5082] ioctl(6, LOOP_SET_FD, 5)    = 0
[pid  5082] close(5 <unfinished ...>
[pid  5080] <... ioctl resumed>)        = 0
[pid  5082] <... close resumed>)        = 0
[pid  5075] <... ioctl resumed>)        = 0
[pid  5082] mkdir("./file0", 0777 <unfinished ...>
[pid  5075] close(5 <unfinished ...>
[pid  5082] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  5075] <... close resumed>)        = 0
[pid  5082] mount("/dev/loop5", "./file0", "ntfs", 0, "" <unfinished ...>
[pid  5080] close(5 <unfinished ...>
[pid  5075] mkdir("./file0", 0777 <unfinished ...>
[pid  5080] <... close resumed>)        = 0
[pid  5075] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  5075] mount("/dev/loop0", "./file0", "ntfs", 0, "" <unfinished ...>
[pid  5080] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[   58.238128][ T5075] loop0: detected capacity change from 0 to 4096
[   58.240335][ T5080] loop3: detected capacity change from 0 to 4096
[   58.253608][ T5082] loop5: detected capacity change from 0 to 4096
[pid  5080] mount("/dev/loop3", "./file0", "ntfs", 0, "" <unfinished ...>
[pid  5077] <... mount resumed>)        = 0
[pid  5077] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid  5077] chdir("./file0")            = 0
[pid  5077] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5081] <... mount resumed>)        = 0
[   58.300815][ T5077] ntfs: volume version 3.1.
[   58.311209][ T5081] ntfs: volume version 3.1.
[pid  5077] close(6)                    = 0
[pid  5081] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid  5077] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5081] chdir("./file0")            = 0
[pid  5081] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5077] <... open resumed>)         = 6
[pid  5075] <... mount resumed>)        = 0
[pid  5081] <... ioctl resumed>)        = 0
[pid  5077] pwritev(6, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5081] close(6)                    = 0
[pid  5080] <... mount resumed>)        = 0
[pid  5075] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5
[pid  5080] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5075] chdir("./file0" <unfinished ...>
[pid  5081] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5075] <... chdir resumed>)        = 0
[pid  5080] <... openat resumed>)       = 5
[pid  5075] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5080] chdir("./file0" <unfinished ...>
[pid  5075] <... ioctl resumed>)        = 0
[pid  5080] <... chdir resumed>)        = 0
[pid  5081] <... open resumed>)         = 6
[pid  5080] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5075] close(6 <unfinished ...>
[pid  5081] pwritev(6, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5080] <... ioctl resumed>)        = 0
[pid  5075] <... close resumed>)        = 0
[pid  5082] <... mount resumed>)        = 0
[pid  5081] <... pwritev resumed>)      = 103
[pid  5080] close(6 <unfinished ...>
[pid  5077] <... pwritev resumed>)      = 103
[pid  5075] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5073] <... mount resumed>)        = 0
[pid  5081] exit_group(0 <unfinished ...>
[pid  5080] <... close resumed>)        = 0
[pid  5081] <... exit_group resumed>)   = ?
[   58.352032][ T5075] ntfs: volume version 3.1.
[   58.358749][ T5073] ntfs: volume version 3.1.
[   58.364674][ T5080] ntfs: volume version 3.1.
[   58.369828][ T5082] ntfs: volume version 3.1.
[pid  5080] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5073] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5077] exit_group(0 <unfinished ...>
[pid  5082] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY <unfinished ...>
[pid  5081] +++ exited with 0 +++
[pid  5080] <... open resumed>)         = 6
[pid  5075] <... open resumed>)         = 6
[pid  5073] <... openat resumed>)       = 5
[pid  5082] <... openat resumed>)       = 5
[pid  5080] pwritev(6, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5073] chdir("./file0" <unfinished ...>
[pid  5082] chdir("./file0" <unfinished ...>
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=26 /* 0.26 s */} ---
[pid  5073] <... chdir resumed>)        = 0
[pid  5082] <... chdir resumed>)        = 0
[pid  5076] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5073] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5082] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5077] <... exit_group resumed>)   = ?
[pid  5076] <... restart_syscall resumed>) = 0
[pid  5075] pwritev(6, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5073] <... ioctl resumed>)        = 0
[pid  5082] <... ioctl resumed>)        = 0
[pid  5073] close(6 <unfinished ...>
[pid  5082] close(6 <unfinished ...>
[pid  5073] <... close resumed>)        = 0
[pid  5082] <... close resumed>)        = 0
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5073] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5082] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5076] <... openat resumed>)       = 3
[pid  5076] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5076] close(3 <unfinished ...>
[pid  5077] +++ exited with 0 +++
[pid  5076] <... close resumed>)        = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5082] <... open resumed>)         = 6
[pid  5073] <... open resumed>)         = 6
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5077, si_uid=0, si_status=0, si_utime=0, si_stime=25 /* 0.25 s */} ---
[pid  5080] <... pwritev resumed>)      = 103
./strace-static-x86_64: Process 5084 attached
[pid  5082] pwritev(6, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5075] <... pwritev resumed>)      = 103
[pid  5071] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5080] exit_group(0 <unfinished ...>
[pid  5071] <... restart_syscall resumed>) = 0
[pid  5080] <... exit_group resumed>)   = ?
[pid  5075] exit_group(0 <unfinished ...>
[pid  5084] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5084
[pid  5073] pwritev(6, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5071] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5080] +++ exited with 0 +++
[pid  5075] <... exit_group resumed>)   = ?
[pid  5071] close(3 <unfinished ...>
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
[pid  5071] <... close resumed>)        = 0
[pid  5072] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5085 attached
 <unfinished ...>
[pid  5072] <... restart_syscall resumed>) = 0
[pid  5085] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5084] <... set_robust_list resumed>) = 0
[pid  5082] <... pwritev resumed>)      = 103
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5085
[pid  5085] <... set_robust_list resumed>) = 0
[pid  5084] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5082] exit_group(0 <unfinished ...>
[pid  5084] <... prctl resumed>)        = 0
[pid  5082] <... exit_group resumed>)   = ?
[pid  5085] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5084] setpgid(0, 0 <unfinished ...>
[pid  5075] +++ exited with 0 +++
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5073] <... pwritev resumed>)      = 103
[pid  5085] <... prctl resumed>)        = 0
[pid  5084] <... setpgid resumed>)      = 0
[pid  5073] exit_group(0 <unfinished ...>
[pid  5072] <... openat resumed>)       = 3
[pid  5085] setpgid(0, 0 <unfinished ...>
[pid  5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5082] +++ exited with 0 +++
[pid  5073] <... exit_group resumed>)   = ?
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5085] <... setpgid resumed>)      = 0
[pid  5084] <... openat resumed>)       = 3
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
[pid  5072] <... ioctl resumed>)        = 0
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5075, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} ---
[pid  5084] write(3, "1000", 4 <unfinished ...>
[pid  5072] close(3 <unfinished ...>
[pid  5069] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5084] <... write resumed>)        = 4
[pid  5072] <... close resumed>)        = 0
[pid  5069] <... restart_syscall resumed>) = 0
[pid  5084] close(3 <unfinished ...>
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5085] <... openat resumed>)       = 3
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5085] write(3, "1000", 4 <unfinished ...>
[pid  5084] <... close resumed>)        = 0
[pid  5078] <... openat resumed>)       = 3
./strace-static-x86_64: Process 5086 attached
[pid  5085] <... write resumed>)        = 4
[pid  5084] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5073] +++ exited with 0 +++
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5086
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5086] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5085] close(3 <unfinished ...>
[pid  5084] <... openat resumed>)       = 3
[pid  5078] <... ioctl resumed>)        = 0
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5073, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
[pid  5069] <... openat resumed>)       = 3
[pid  5086] <... set_robust_list resumed>) = 0
[pid  5085] <... close resumed>)        = 0
[pid  5084] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5078] close(3 <unfinished ...>
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5086] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5085] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5084] <... openat resumed>)       = 4
[pid  5078] <... close resumed>)        = 0
[pid  5069] <... ioctl resumed>)        = 0
[pid  5086] <... prctl resumed>)        = 0
[pid  5085] <... openat resumed>)       = 3
[pid  5084] sendfile(4, 3, [88] <unfinished ...>
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5069] close(3 <unfinished ...>
[pid  5086] setpgid(0, 0 <unfinished ...>
[pid  5085] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5070] <... openat resumed>)       = 3
[pid  5069] <... close resumed>)        = 0
[pid  5086] <... setpgid resumed>)      = 0
[pid  5085] <... openat resumed>)       = 4
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5088 attached
 <unfinished ...>
[pid  5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5085] sendfile(4, 3, [88] <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5087
[pid  5070] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5087 attached
)       = 0
[pid  5087] set_robust_list(0x55555677f660, 24) = 0
[pid  5086] <... openat resumed>)       = 3
[pid  5087] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5086] write(3, "1000", 4 <unfinished ...>
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5088
[pid  5086] <... write resumed>)        = 4
[pid  5086] close(3 <unfinished ...>
[pid  5087] <... prctl resumed>)        = 0
[pid  5087] setpgid(0, 0)               = 0
[pid  5086] <... close resumed>)        = 0
[pid  5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5086] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5070] close(3 <unfinished ...>
[pid  5088] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5087] <... openat resumed>)       = 3
[pid  5086] <... openat resumed>)       = 3
[pid  5070] <... close resumed>)        = 0
[pid  5086] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5087] write(3, "1000", 4 <unfinished ...>
[pid  5086] <... openat resumed>)       = 4
[pid  5088] <... set_robust_list resumed>) = 0
[pid  5087] <... write resumed>)        = 4
[pid  5086] sendfile(4, 3, [88] <unfinished ...>
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5089 attached
 <unfinished ...>
[pid  5088] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5087] close(3)                    = 0
[pid  5087] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5087] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5087] sendfile(4, 3, [88] <unfinished ...>
[pid  5089] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5088] <... prctl resumed>)        = 0
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5089
[pid  5089] <... set_robust_list resumed>) = 0
[pid  5089] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5088] setpgid(0, 0 <unfinished ...>
[pid  5089] <... prctl resumed>)        = 0
[pid  5088] <... setpgid resumed>)      = 0
[pid  5089] setpgid(0, 0)               = 0
[pid  5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5088] <... openat resumed>)       = 3
[pid  5089] <... openat resumed>)       = 3
[pid  5089] write(3, "1000", 4 <unfinished ...>
[pid  5088] write(3, "1000", 4 <unfinished ...>
[pid  5089] <... write resumed>)        = 4
[pid  5088] <... write resumed>)        = 4
[pid  5089] close(3 <unfinished ...>
[pid  5088] close(3 <unfinished ...>
[pid  5089] <... close resumed>)        = 0
[pid  5088] <... close resumed>)        = 0
[pid  5089] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5088] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5089] <... openat resumed>)       = 3
[pid  5088] <... openat resumed>)       = 3
[pid  5088] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5089] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5088] <... openat resumed>)       = 4
[pid  5088] sendfile(4, 3, [88] <unfinished ...>
[pid  5089] <... openat resumed>)       = 4
[   58.722755][ T5086] syz-executor166 (5086): drop_caches: 1
[   58.728924][ T5085] syz-executor166 (5085): drop_caches: 1
[   58.729523][ T5084] syz-executor166 (5084): drop_caches: 1
[   58.741302][ T5087] syz-executor166 (5087): drop_caches: 1
[   58.781533][ T5088] syz-executor166 (5088): drop_caches: 1
[   58.802612][ T5089] syz-executor166 (5089): drop_caches: 1
[   58.924043][ T5085] syz-executor166 (5085): drop_caches: 1
[   58.947481][ T5084] syz-executor166 (5084): drop_caches: 1
[   58.950871][ T5088] syz-executor166 (5088): drop_caches: 1
[   58.962694][ T5087] syz-executor166 (5087): drop_caches: 1
[   58.965698][ T5086] syz-executor166 (5086): drop_caches: 1
[pid  5089] sendfile(4, 3, [88] <unfinished ...>
[pid  5085] <... sendfile resumed> => [103], 15) = 15
[pid  5086] <... sendfile resumed> => [103], 15) = 15
[pid  5085] memfd_create("syzkaller", 0) = 5
[pid  5085] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5088] <... sendfile resumed> => [103], 15) = 15
[pid  5087] <... sendfile resumed> => [103], 15) = 15
[pid  5084] <... sendfile resumed> => [103], 15) = 15
[pid  5089] <... sendfile resumed> => [103], 15) = 15
[pid  5088] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5087] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5086] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5089] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5088] <... memfd_create resumed>) = 5
[pid  5087] <... memfd_create resumed>) = 5
[pid  5086] <... memfd_create resumed>) = 5
[pid  5084] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5087] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5088] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5087] <... mmap resumed>)         = 0x7f299346a000
[pid  5088] <... mmap resumed>)         = 0x7f299346a000
[pid  5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5084] <... memfd_create resumed>) = 5
[pid  5089] <... memfd_create resumed>) = 5
[pid  5085] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   58.972095][ T5089] syz-executor166 (5089): drop_caches: 1
[pid  5088] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5087] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5084] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5085] <... write resumed>)        = 2097152
[pid  5086] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5085] munmap(0x7f299346a000, 138412032) = 0
[pid  5089] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5087] <... write resumed>)        = 2097152
[pid  5085] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5088] <... write resumed>)        = 2097152
[pid  5087] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5085] <... openat resumed>)       = 6
[pid  5085] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5085] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5085] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5085] close(6 <unfinished ...>
[pid  5089] <... write resumed>)        = 2097152
[pid  5088] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5087] <... munmap resumed>)       = 0
[pid  5085] <... close resumed>)        = 0
[pid  5085] close(5 <unfinished ...>
[pid  5086] <... write resumed>)        = 2097152
[pid  5086] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5089] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5088] <... munmap resumed>)       = 0
[pid  5087] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5086] <... munmap resumed>)       = 0
[pid  5084] <... write resumed>)        = 2097152
[pid  5087] <... openat resumed>)       = 6
[pid  5086] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5086] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5086] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5089] <... munmap resumed>)       = 0
[pid  5088] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5087] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5084] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5086] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5086] close(6)                    = 0
[pid  5086] close(5 <unfinished ...>
[pid  5087] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5089] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5088] <... openat resumed>)       = 6
[pid  5087] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5084] <... munmap resumed>)       = 0
[pid  5088] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5087] <... ioctl resumed>)        = 0
[pid  5088] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5088] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5089] <... openat resumed>)       = 6
[pid  5089] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5084] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5087] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5089] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5087] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5089] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5087] close(6 <unfinished ...>
[pid  5084] <... openat resumed>)       = 6
[pid  5089] <... ioctl resumed>)        = 0
[pid  5087] <... close resumed>)        = 0
[pid  5084] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5088] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5087] close(5 <unfinished ...>
[pid  5085] <... close resumed>)        = 0
[pid  5084] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5088] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5084] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5085] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5088] close(6 <unfinished ...>
[pid  5086] <... close resumed>)        = 0
[pid  5085] <... open resumed>)         = 5
[pid  5084] <... ioctl resumed>)        = 0
[pid  5088] <... close resumed>)        = 0
[pid  5088] close(5 <unfinished ...>
[pid  5086] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5089] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5085] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5089] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5084] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5084] close(6)                    = 0
[pid  5089] close(6 <unfinished ...>
[pid  5088] <... close resumed>)        = 0
[pid  5087] <... close resumed>)        = 0
[pid  5084] close(5 <unfinished ...>
[pid  5086] <... open resumed>)         = 5
[pid  5086] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5089] <... close resumed>)        = 0
[pid  5087] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5089] close(5 <unfinished ...>
[pid  5087] <... open resumed>)         = 5
[pid  5087] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452) = 103
[pid  5086] <... pwritev resumed>)      = 103
[pid  5084] <... close resumed>)        = 0
[pid  5087] exit_group(0 <unfinished ...>
[pid  5086] exit_group(0 <unfinished ...>
[pid  5085] <... pwritev resumed>)      = 103
[pid  5087] <... exit_group resumed>)   = ?
[pid  5086] <... exit_group resumed>)   = ?
[pid  5089] <... close resumed>)        = 0
[pid  5087] +++ exited with 0 +++
[pid  5086] +++ exited with 0 +++
[pid  5085] exit_group(0 <unfinished ...>
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
[pid  5089] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5088] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5085] <... exit_group resumed>)   = ?
[pid  5084] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5085] +++ exited with 0 +++
[pid  5089] <... open resumed>)         = 5
[pid  5088] <... open resumed>)         = 5
[pid  5084] <... open resumed>)         = 5
[pid  5072] <... openat resumed>)       = 3
[pid  5088] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5084] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
[pid  5089] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5072] <... ioctl resumed>)        = 0
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5072] close(3 <unfinished ...>
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5072] <... close resumed>)        = 0
[pid  5071] <... openat resumed>)       = 3
[pid  5078] <... ioctl resumed>)        = 0
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5078] close(3 <unfinished ...>
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5071] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 5092 attached
[pid  5078] <... close resumed>)        = 0
[pid  5071] close(3 <unfinished ...>
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5071] <... close resumed>)        = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5093 attached
 <unfinished ...>
[pid  5092] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5092
[pid  5093] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5092] <... set_robust_list resumed>) = 0
[pid  5093] <... set_robust_list resumed>) = 0
[pid  5092] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5093] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5092] <... prctl resumed>)        = 0
[pid  5092] setpgid(0, 0)               = 0
[pid  5093] <... prctl resumed>)        = 0
[pid  5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5093] setpgid(0, 0 <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5093
[pid  5092] <... openat resumed>)       = 3
[pid  5093] <... setpgid resumed>)      = 0
[pid  5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5092] write(3, "1000", 4./strace-static-x86_64: Process 5094 attached
 <unfinished ...>
[pid  5093] <... openat resumed>)       = 3
[pid  5092] <... write resumed>)        = 4
[pid  5093] write(3, "1000", 4 <unfinished ...>
[pid  5092] close(3 <unfinished ...>
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5094
[pid  5094] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5093] <... write resumed>)        = 4
[pid  5092] <... close resumed>)        = 0
[pid  5094] <... set_robust_list resumed>) = 0
[pid  5093] close(3 <unfinished ...>
[pid  5092] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5094] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5093] <... close resumed>)        = 0
[pid  5089] <... pwritev resumed>)      = 103
[pid  5088] <... pwritev resumed>)      = 103
[pid  5084] <... pwritev resumed>)      = 103
[pid  5093] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5092] <... openat resumed>)       = 3
[pid  5089] exit_group(0 <unfinished ...>
[pid  5094] <... prctl resumed>)        = 0
[pid  5093] <... openat resumed>)       = 3
[pid  5092] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5089] <... exit_group resumed>)   = ?
[pid  5088] exit_group(0 <unfinished ...>
[pid  5084] exit_group(0 <unfinished ...>
[pid  5094] setpgid(0, 0 <unfinished ...>
[pid  5092] <... openat resumed>)       = 4
[pid  5094] <... setpgid resumed>)      = 0
[pid  5093] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5092] sendfile(4, 3, [88] <unfinished ...>
[pid  5089] +++ exited with 0 +++
[pid  5088] <... exit_group resumed>)   = ?
[pid  5084] <... exit_group resumed>)   = ?
[pid  5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5093] <... openat resumed>)       = 4
[pid  5084] +++ exited with 0 +++
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
[pid  5093] sendfile(4, 3, [88] <unfinished ...>
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5094] <... openat resumed>)       = 3
[pid  5088] +++ exited with 0 +++
[pid  5076] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5094] write(3, "1000", 4 <unfinished ...>
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5094] <... write resumed>)        = 4
[pid  5094] close(3 <unfinished ...>
[pid  5076] <... restart_syscall resumed>) = 0
[pid  5094] <... close resumed>)        = 0
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5094] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5069] <... openat resumed>)       = 3
[pid  5094] <... openat resumed>)       = 3
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5094] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5069] <... ioctl resumed>)        = 0
[pid  5094] <... openat resumed>)       = 4
[pid  5069] close(3 <unfinished ...>
[pid  5094] sendfile(4, 3, [88] <unfinished ...>
[pid  5076] <... openat resumed>)       = 3
[pid  5070] <... openat resumed>)       = 3
[pid  5069] <... close resumed>)        = 0
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5076] <... ioctl resumed>)        = 0
[pid  5070] <... ioctl resumed>)        = 0
[pid  5076] close(3 <unfinished ...>
[pid  5070] close(3./strace-static-x86_64: Process 5095 attached
 <unfinished ...>
[pid  5076] <... close resumed>)        = 0
[pid  5070] <... close resumed>)        = 0
[pid  5095] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5095] <... set_robust_list resumed>) = 0
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5095
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5096
./strace-static-x86_64: Process 5096 attached
[pid  5095] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5096] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5097
./strace-static-x86_64: Process 5097 attached
[pid  5095] <... prctl resumed>)        = 0
[pid  5097] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5096] <... set_robust_list resumed>) = 0
[pid  5095] setpgid(0, 0)               = 0
[pid  5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5096] setpgid(0, 0 <unfinished ...>
[pid  5097] <... set_robust_list resumed>) = 0
[pid  5097] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5096] <... setpgid resumed>)      = 0
[pid  5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5097] <... prctl resumed>)        = 0
[pid  5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5096] write(3, "1000", 4)         = 4
[pid  5096] close(3)                    = 0
[pid  5096] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5096] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5096] sendfile(4, 3, [88] <unfinished ...>
[pid  5097] setpgid(0, 0 <unfinished ...>
[pid  5095] <... openat resumed>)       = 3
[pid  5097] <... setpgid resumed>)      = 0
[pid  5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5095] write(3, "1000", 4 <unfinished ...>
[pid  5097] <... openat resumed>)       = 3
[pid  5095] <... write resumed>)        = 4
[pid  5097] write(3, "1000", 4 <unfinished ...>
[pid  5095] close(3 <unfinished ...>
[pid  5097] <... write resumed>)        = 4
[pid  5095] <... close resumed>)        = 0
[pid  5097] close(3)                    = 0
[pid  5097] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5095] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5097] <... openat resumed>)       = 3
[pid  5095] <... openat resumed>)       = 3
[pid  5097] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5095] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5097] <... openat resumed>)       = 4
[pid  5095] <... openat resumed>)       = 4
[pid  5097] sendfile(4, 3, [88] <unfinished ...>
[   59.500360][ T5094] syz-executor166 (5094): drop_caches: 1
[   59.516556][ T5093] syz-executor166 (5093): drop_caches: 1
[   59.526818][ T5092] syz-executor166 (5092): drop_caches: 1
[   59.590672][ T5096] syz-executor166 (5096): drop_caches: 1
[   59.634811][ T5094] syz-executor166 (5094): drop_caches: 1
[   59.656197][ T5097] syz-executor166 (5097): drop_caches: 1
[   59.673557][ T5095] syz-executor166 (5095): drop_caches: 1
[pid  5095] sendfile(4, 3, [88] <unfinished ...>
[pid  5094] <... sendfile resumed> => [103], 15) = 15
[pid  5094] memfd_create("syzkaller", 0) = 5
[pid  5094] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   59.687727][ T5093] syz-executor166 (5093): drop_caches: 1
[   59.703607][ T5092] syz-executor166 (5092): drop_caches: 1
[pid  5092] <... sendfile resumed> => [103], 15) = 15
[pid  5093] <... sendfile resumed> => [103], 15) = 15
[pid  5093] memfd_create("syzkaller", 0) = 5
[pid  5092] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5096] <... sendfile resumed> => [103], 15) = 15
[pid  5093] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5092] <... memfd_create resumed>) = 5
[pid  5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5094] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5093] <... mmap resumed>)         = 0x7f299346a000
[pid  5096] memfd_create("syzkaller", 0) = 5
[pid  5096] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   59.730230][ T5096] syz-executor166 (5096): drop_caches: 1
[pid  5093] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5097] <... sendfile resumed> => [103], 15) = 15
[pid  5094] <... write resumed>)        = 2097152
[pid  5092] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5097] memfd_create("syzkaller", 0 <unfinished ...>
[   59.785527][ T5097] syz-executor166 (5097): drop_caches: 1
[pid  5096] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5093] <... write resumed>)        = 2097152
[pid  5097] <... memfd_create resumed>) = 5
[pid  5097] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5093] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5097] <... mmap resumed>)         = 0x7f299346a000
[pid  5094] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5093] <... munmap resumed>)       = 0
[pid  5095] <... sendfile resumed> => [103], 15) = 15
[pid  5094] <... munmap resumed>)       = 0
[pid  5093] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5094] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5093] <... openat resumed>)       = 6
[pid  5095] memfd_create("syzkaller", 0) = 5
[pid  5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5093] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5094] <... openat resumed>)       = 6
[pid  5093] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5093] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5094] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5093] <... ioctl resumed>)        = 0
[pid  5097] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5094] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5094] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5096] <... write resumed>)        = 2097152
[pid  5092] <... write resumed>)        = 2097152
[pid  5094] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5093] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5092] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5093] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5092] <... munmap resumed>)       = 0
[pid  5093] close(6 <unfinished ...>
[pid  5094] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5093] <... close resumed>)        = 0
[   59.847970][ T5095] syz-executor166 (5095): drop_caches: 1
[pid  5094] close(6 <unfinished ...>
[pid  5093] close(5 <unfinished ...>
[pid  5094] <... close resumed>)        = 0
[pid  5096] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5094] close(5 <unfinished ...>
[pid  5093] <... close resumed>)        = 0
[pid  5092] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5092] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5094] <... close resumed>)        = 0
[pid  5092] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5093] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5092] <... ioctl resumed>)        = 0
[pid  5093] <... open resumed>)         = 5
[pid  5092] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5093] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5092] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5096] <... munmap resumed>)       = 0
[pid  5092] close(6)                    = 0
[pid  5092] close(5 <unfinished ...>
[pid  5096] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5096] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5096] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5096] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5095] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5096] close(6 <unfinished ...>
[pid  5093] <... pwritev resumed>)      = 103
[pid  5097] <... write resumed>)        = 2097152
[pid  5096] <... close resumed>)        = 0
[pid  5094] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5093] exit_group(0 <unfinished ...>
[pid  5096] close(5 <unfinished ...>
[pid  5093] <... exit_group resumed>)   = ?
[pid  5093] +++ exited with 0 +++
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5094] <... open resumed>)         = 5
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5097] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5094] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5092] <... close resumed>)        = 0
[pid  5078] <... ioctl resumed>)        = 0
[pid  5078] close(3)                    = 0
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5098 attached
 <unfinished ...>
[pid  5098] set_robust_list(0x55555677f660, 24) = 0
[pid  5097] <... munmap resumed>)       = 0
[pid  5092] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5098
[pid  5098] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5097] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5096] <... close resumed>)        = 0
[pid  5094] <... pwritev resumed>)      = 103
[pid  5092] <... open resumed>)         = 5
[pid  5094] exit_group(0 <unfinished ...>
[pid  5098] <... prctl resumed>)        = 0
[pid  5094] <... exit_group resumed>)   = ?
[pid  5092] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5097] <... openat resumed>)       = 6
[pid  5097] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5094] +++ exited with 0 +++
[pid  5097] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5098] setpgid(0, 0 <unfinished ...>
[pid  5097] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5098] <... setpgid resumed>)      = 0
[pid  5097] <... ioctl resumed>)        = 0
[pid  5096] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5092] <... pwritev resumed>)      = 103
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5097] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5096] <... open resumed>)         = 5
[pid  5092] exit_group(0 <unfinished ...>
[pid  5071] <... openat resumed>)       = 3
[pid  5098] <... openat resumed>)       = 3
[pid  5097] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5096] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5095] <... write resumed>)        = 2097152
[pid  5092] <... exit_group resumed>)   = ?
[pid  5071] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5071] close(3)                    = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5097] close(6./strace-static-x86_64: Process 5099 attached
 <unfinished ...>
[pid  5098] write(3, "1000", 4 <unfinished ...>
[pid  5097] <... close resumed>)        = 0
[pid  5098] <... write resumed>)        = 4
[pid  5098] close(3 <unfinished ...>
[pid  5097] close(5 <unfinished ...>
[pid  5095] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5099
[pid  5095] <... munmap resumed>)       = 0
[pid  5098] <... close resumed>)        = 0
[pid  5096] <... pwritev resumed>)      = 103
[pid  5098] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5096] exit_group(0 <unfinished ...>
[pid  5099] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5096] <... exit_group resumed>)   = ?
[pid  5099] <... set_robust_list resumed>) = 0
[pid  5098] <... openat resumed>)       = 3
[pid  5096] +++ exited with 0 +++
[pid  5092] +++ exited with 0 +++
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5098] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5072] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5099] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5098] <... openat resumed>)       = 4
[pid  5072] <... restart_syscall resumed>) = 0
[pid  5098] sendfile(4, 3, [88] <unfinished ...>
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5099] <... prctl resumed>)        = 0
[pid  5095] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid  5072] <... ioctl resumed>)        = 0
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5072] close(3 <unfinished ...>
[pid  5070] <... openat resumed>)       = 3
[pid  5072] <... close resumed>)        = 0
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5070] <... ioctl resumed>)        = 0
[pid  5070] close(3)                    = 0
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5099] setpgid(0, 0./strace-static-x86_64: Process 5100 attached
 <unfinished ...>
[pid  5095] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5100
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5101
[pid  5100] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5095] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5095] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5100] <... set_robust_list resumed>) = 0
./strace-static-x86_64: Process 5101 attached
[pid  5100] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5099] <... setpgid resumed>)      = 0
[pid  5097] <... close resumed>)        = 0
[pid  5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5099] write(3, "1000", 4 <unfinished ...>
[pid  5095] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5099] <... write resumed>)        = 4
[pid  5099] close(3 <unfinished ...>
[pid  5097] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5095] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5101] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5099] <... close resumed>)        = 0
[pid  5100] <... prctl resumed>)        = 0
[pid  5095] close(6 <unfinished ...>
[pid  5099] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5100] setpgid(0, 0 <unfinished ...>
[pid  5097] <... open resumed>)         = 5
[pid  5095] <... close resumed>)        = 0
[pid  5099] <... openat resumed>)       = 3
[pid  5100] <... setpgid resumed>)      = 0
[pid  5099] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5095] close(5 <unfinished ...>
[pid  5101] <... set_robust_list resumed>) = 0
[pid  5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5099] <... openat resumed>)       = 4
[pid  5101] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5100] <... openat resumed>)       = 3
[pid  5099] sendfile(4, 3, [88] <unfinished ...>
[pid  5100] write(3, "1000", 4)         = 4
[pid  5100] close(3)                    = 0
[pid  5100] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5100] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5100] sendfile(4, 3, [88] <unfinished ...>
[pid  5101] <... prctl resumed>)        = 0
[pid  5095] <... close resumed>)        = 0
[pid  5101] setpgid(0, 0 <unfinished ...>
[pid  5097] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5101] <... setpgid resumed>)      = 0
[pid  5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5101] write(3, "1000", 4)         = 4
[pid  5101] close(3)                    = 0
[pid  5095] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5095] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5101] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5097] <... pwritev resumed>)      = 103
[pid  5101] <... openat resumed>)       = 3
[pid  5097] exit_group(0 <unfinished ...>
[pid  5101] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5097] <... exit_group resumed>)   = ?
[pid  5095] <... pwritev resumed>)      = 103
[pid  5095] exit_group(0)               = ?
[pid  5095] +++ exited with 0 +++
[pid  5101] <... openat resumed>)       = 4
[pid  5101] sendfile(4, 3, [88] <unfinished ...>
[pid  5097] +++ exited with 0 +++
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5076] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5069] <... openat resumed>)       = 3
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5076] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5076] close(3)                    = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5102 attached
 <unfinished ...>
[pid  5102] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5102] <... set_robust_list resumed>) = 0
[pid  5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5102] setpgid(0, 0)               = 0
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5102
[pid  5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5069] <... ioctl resumed>)        = 0
[pid  5102] <... openat resumed>)       = 3
[pid  5069] close(3 <unfinished ...>
[pid  5102] write(3, "1000", 4)         = 4
[pid  5102] close(3)                    = 0
[pid  5102] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5069] <... close resumed>)        = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5102] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5102] sendfile(4, 3, [88]./strace-static-x86_64: Process 5103 attached
 <unfinished ...>
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5103
[pid  5103] set_robust_list(0x55555677f660, 24) = 0
[pid  5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5103] setpgid(0, 0)               = 0
[pid  5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5103] write(3, "1000", 4)         = 4
[pid  5103] close(3)                    = 0
[pid  5103] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5103] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   60.285883][ T5100] syz-executor166 (5100): drop_caches: 1
[   60.290774][ T5098] syz-executor166 (5098): drop_caches: 1
[   60.326483][ T5099] syz-executor166 (5099): drop_caches: 1
[   60.352969][ T5102] syz-executor166 (5102): drop_caches: 1
[   60.355495][ T5101] syz-executor166 (5101): drop_caches: 1
[   60.434739][ T5103] syz-executor166 (5103): drop_caches: 1
[   60.486854][ T5098] syz-executor166 (5098): drop_caches: 1
[   60.519072][ T5100] syz-executor166 (5100): drop_caches: 1
[pid  5103] sendfile(4, 3, [88] <unfinished ...>
[pid  5100] <... sendfile resumed> => [103], 15) = 15
[pid  5098] <... sendfile resumed> => [103], 15) = 15
[pid  5098] memfd_create("syzkaller", 0) = 5
[pid  5100] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5100] <... memfd_create resumed>) = 5
[pid  5100] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5098] <... mmap resumed>)         = 0x7f299346a000
[pid  5099] <... sendfile resumed> => [103], 15) = 15
[pid  5099] memfd_create("syzkaller", 0) = 5
[pid  5099] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5102] <... sendfile resumed> => [103], 15) = 15
[pid  5100] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5102] memfd_create("syzkaller", 0) = 5
[pid  5102] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   60.535739][ T5099] syz-executor166 (5099): drop_caches: 1
[   60.556101][ T5102] syz-executor166 (5102): drop_caches: 1
[   60.566698][ T5101] syz-executor166 (5101): drop_caches: 1
[pid  5101] <... sendfile resumed> => [103], 15) = 15
[pid  5098] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5101] memfd_create("syzkaller", 0) = 5
[pid  5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5099] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5100] <... write resumed>)        = 2097152
[pid  5103] <... sendfile resumed> => [103], 15) = 15
[   60.625014][ T5103] syz-executor166 (5103): drop_caches: 1
[pid  5101] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5100] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5103] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5102] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5099] <... write resumed>)        = 2097152
[pid  5098] <... write resumed>)        = 2097152
[pid  5103] <... memfd_create resumed>) = 5
[pid  5103] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5099] munmap(0x7f299346a000, 138412032) = 0
[pid  5098] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5100] <... munmap resumed>)       = 0
[pid  5100] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5099] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5100] <... openat resumed>)       = 6
[pid  5099] <... openat resumed>)       = 6
[pid  5100] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5100] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5099] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5100] <... ioctl resumed>)        = 0
[pid  5099] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5099] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5098] <... munmap resumed>)       = 0
[pid  5100] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5099] <... ioctl resumed>)        = 0
[pid  5100] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5101] <... write resumed>)        = 2097152
[pid  5100] close(6)                    = 0
[pid  5099] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5098] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6
[pid  5098] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5098] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5100] close(5 <unfinished ...>
[pid  5099] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5098] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5098] close(6)                    = 0
[pid  5098] close(5 <unfinished ...>
[pid  5101] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5099] close(6)                    = 0
[pid  5099] close(5 <unfinished ...>
[pid  5102] <... write resumed>)        = 2097152
[pid  5103] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5101] <... munmap resumed>)       = 0
[pid  5100] <... close resumed>)        = 0
[pid  5099] <... close resumed>)        = 0
[pid  5098] <... close resumed>)        = 0
[pid  5100] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5098] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5100] <... open resumed>)         = 5
[pid  5098] <... open resumed>)         = 5
[pid  5098] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5102] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5101] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5099] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5101] <... openat resumed>)       = 6
[pid  5100] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5099] <... open resumed>)         = 5
[pid  5101] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5102] <... munmap resumed>)       = 0
[pid  5101] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5102] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5102] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5102] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5102] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5102] close(6)                    = 0
[pid  5102] close(5 <unfinished ...>
[pid  5100] <... pwritev resumed>)      = 103
[pid  5099] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5098] <... pwritev resumed>)      = 103
[pid  5101] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5100] exit_group(0)               = ?
[pid  5101] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5100] +++ exited with 0 +++
[pid  5101] close(6 <unfinished ...>
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5101] <... close resumed>)        = 0
[pid  5101] close(5 <unfinished ...>
[pid  5098] exit_group(0 <unfinished ...>
[pid  5072] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5098] <... exit_group resumed>)   = ?
[pid  5072] <... restart_syscall resumed>) = 0
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5072] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5072] close(3)                    = 0
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555677f650) = 5104
./strace-static-x86_64: Process 5104 attached
[pid  5103] <... write resumed>)        = 2097152
[pid  5099] <... pwritev resumed>)      = 103
[pid  5098] +++ exited with 0 +++
[pid  5104] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=16 /* 0.16 s */} ---
[pid  5104] <... set_robust_list resumed>) = 0
[pid  5099] exit_group(0 <unfinished ...>
[pid  5104] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5099] <... exit_group resumed>)   = ?
[pid  5104] <... prctl resumed>)        = 0
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5104] setpgid(0, 0 <unfinished ...>
[pid  5102] <... close resumed>)        = 0
[pid  5078] <... openat resumed>)       = 3
[pid  5104] <... setpgid resumed>)      = 0
[pid  5103] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5101] <... close resumed>)        = 0
[pid  5099] +++ exited with 0 +++
[pid  5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5102] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5104] <... openat resumed>)       = 3
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5104] write(3, "1000", 4 <unfinished ...>
[pid  5078] <... ioctl resumed>)        = 0
[pid  5104] <... write resumed>)        = 4
[pid  5078] close(3 <unfinished ...>
[pid  5104] close(3 <unfinished ...>
[pid  5078] <... close resumed>)        = 0
[pid  5104] <... close resumed>)        = 0
[pid  5102] <... open resumed>)         = 5
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5104] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5103] <... munmap resumed>)       = 0
[pid  5102] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5101] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5071] <... openat resumed>)       = 3
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5104] <... openat resumed>)       = 3
[pid  5103] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5101] <... open resumed>)         = 5
[pid  5071] <... ioctl resumed>)        = 0
[pid  5101] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5104] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5103] <... openat resumed>)       = 6
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5105
[pid  5071] close(3./strace-static-x86_64: Process 5105 attached
 <unfinished ...>
[pid  5104] <... openat resumed>)       = 4
[pid  5105] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5104] sendfile(4, 3, [88] <unfinished ...>
[pid  5071] <... close resumed>)        = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5106 attached
 <unfinished ...>
[pid  5105] <... set_robust_list resumed>) = 0
[pid  5103] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5102] <... pwritev resumed>)      = 103
[pid  5101] <... pwritev resumed>)      = 103
[pid  5106] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5105] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5103] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5102] exit_group(0 <unfinished ...>
[pid  5101] exit_group(0 <unfinished ...>
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5106
[pid  5106] <... set_robust_list resumed>) = 0
[pid  5105] <... prctl resumed>)        = 0
[pid  5103] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5102] <... exit_group resumed>)   = ?
[pid  5101] <... exit_group resumed>)   = ?
[pid  5105] setpgid(0, 0 <unfinished ...>
[pid  5103] <... ioctl resumed>)        = 0
[pid  5105] <... setpgid resumed>)      = 0
[pid  5106] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5106] <... prctl resumed>)        = 0
[pid  5105] <... openat resumed>)       = 3
[pid  5102] +++ exited with 0 +++
[pid  5101] +++ exited with 0 +++
[pid  5106] setpgid(0, 0 <unfinished ...>
[pid  5105] write(3, "1000", 4 <unfinished ...>
[pid  5103] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=22 /* 0.22 s */} ---
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5106] <... setpgid resumed>)      = 0
[pid  5105] <... write resumed>)        = 4
[pid  5103] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5103] close(6 <unfinished ...>
[pid  5105] close(3)                    = 0
[pid  5105] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5103] <... close resumed>)        = 0
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5105] <... openat resumed>)       = 3
[pid  5105] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5105] <... openat resumed>)       = 4
[pid  5103] close(5 <unfinished ...>
[pid  5076] <... openat resumed>)       = 3
[pid  5070] <... openat resumed>)       = 3
[pid  5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5105] sendfile(4, 3, [88] <unfinished ...>
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5076] <... ioctl resumed>)        = 0
[pid  5106] <... openat resumed>)       = 3
[pid  5076] close(3 <unfinished ...>
[pid  5070] <... ioctl resumed>)        = 0
[pid  5070] close(3 <unfinished ...>
[pid  5076] <... close resumed>)        = 0
[pid  5070] <... close resumed>)        = 0
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5106] write(3, "1000", 4 <unfinished ...>
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5106] <... write resumed>)        = 4
[pid  5106] close(3)                    = 0
[pid  5106] openat(AT_FDCWD, "/proc/partitions", O_RDONLY./strace-static-x86_64: Process 5108 attached
 <unfinished ...>
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5107
[pid  5108] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5106] <... openat resumed>)       = 3
[pid  5108] <... set_robust_list resumed>) = 0
[pid  5106] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5103] <... close resumed>)        = 0
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5108
[pid  5108] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5106] <... openat resumed>)       = 4
[pid  5103] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5108] <... prctl resumed>)        = 0
[pid  5106] sendfile(4, 3, [88] <unfinished ...>
[pid  5108] setpgid(0, 0 <unfinished ...>
[pid  5103] <... open resumed>)         = 5
[pid  5108] <... setpgid resumed>)      = 0
[pid  5103] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 5107 attached
) = 3
[pid  5108] write(3, "1000", 4 <unfinished ...>
[pid  5107] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5108] <... write resumed>)        = 4
[pid  5107] <... set_robust_list resumed>) = 0
[pid  5108] close(3 <unfinished ...>
[pid  5107] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5108] <... close resumed>)        = 0
[pid  5108] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5107] <... prctl resumed>)        = 0
[pid  5108] <... openat resumed>)       = 3
[pid  5107] setpgid(0, 0 <unfinished ...>
[pid  5103] <... pwritev resumed>)      = 103
[pid  5108] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5107] <... setpgid resumed>)      = 0
[pid  5108] <... openat resumed>)       = 4
[pid  5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5103] exit_group(0 <unfinished ...>
[pid  5108] sendfile(4, 3, [88] <unfinished ...>
[pid  5107] <... openat resumed>)       = 3
[pid  5103] <... exit_group resumed>)   = ?
[pid  5107] write(3, "1000", 4)         = 4
[pid  5107] close(3)                    = 0
[pid  5107] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5107] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5107] sendfile(4, 3, [88] <unfinished ...>
[pid  5103] +++ exited with 0 +++
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=19 /* 0.19 s */} ---
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5069] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5069] close(3)                    = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5109 attached
, child_tidptr=0x55555677f650) = 5109
[pid  5109] set_robust_list(0x55555677f660, 24) = 0
[pid  5109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5109] setpgid(0, 0)               = 0
[pid  5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5109] write(3, "1000", 4)         = 4
[pid  5109] close(3)                    = 0
[pid  5109] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[   61.093257][ T5104] syz-executor166 (5104): drop_caches: 1
[   61.108040][ T5105] syz-executor166 (5105): drop_caches: 1
[pid  5109] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   61.136045][ T5106] syz-executor166 (5106): drop_caches: 1
[   61.156820][ T5107] syz-executor166 (5107): drop_caches: 1
[   61.163862][ T5108] syz-executor166 (5108): drop_caches: 1
[pid  5109] sendfile(4, 3, [88] <unfinished ...>
[pid  5104] <... sendfile resumed> => [103], 15) = 15
[pid  5104] memfd_create("syzkaller", 0) = 5
[pid  5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   61.250343][ T5104] syz-executor166 (5104): drop_caches: 1
[   61.272790][ T5109] syz-executor166 (5109): drop_caches: 1
[   61.277978][ T5106] syz-executor166 (5106): drop_caches: 1
[   61.283914][ T5105] syz-executor166 (5105): drop_caches: 1
[pid  5108] <... sendfile resumed> => [103], 15) = 15
[pid  5106] <... sendfile resumed> => [103], 15) = 15
[pid  5105] <... sendfile resumed> => [103], 15) = 15
[pid  5105] memfd_create("syzkaller", 0) = 5
[pid  5105] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5108] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5106] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5104] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5106] <... memfd_create resumed>) = 5
[pid  5108] <... memfd_create resumed>) = 5
[pid  5106] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5108] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5106] <... mmap resumed>)         = 0x7f299346a000
[pid  5108] <... mmap resumed>)         = 0x7f299346a000
[   61.302323][ T5108] syz-executor166 (5108): drop_caches: 1
[pid  5105] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5107] <... sendfile resumed> => [103], 15) = 15
[pid  5107] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5108] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5106] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5104] <... write resumed>)        = 2097152
[pid  5107] <... memfd_create resumed>) = 5
[pid  5105] <... write resumed>)        = 2097152
[   61.367352][ T5107] syz-executor166 (5107): drop_caches: 1
[pid  5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5104] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5109] <... sendfile resumed> => [103], 15) = 15
[pid  5107] <... mmap resumed>)         = 0x7f299346a000
[pid  5105] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5104] <... munmap resumed>)       = 0
[pid  5104] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5104] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5104] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5104] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5104] close(6)                    = 0
[pid  5104] close(5 <unfinished ...>
[pid  5109] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5106] <... write resumed>)        = 2097152
[pid  5105] <... munmap resumed>)       = 0
[pid  5109] <... memfd_create resumed>) = 5
[pid  5106] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5105] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5109] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5105] <... openat resumed>)       = 6
[pid  5105] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5109] <... mmap resumed>)         = 0x7f299346a000
[pid  5107] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5106] <... munmap resumed>)       = 0
[pid  5105] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5104] <... close resumed>)        = 0
[   61.423223][ T5109] syz-executor166 (5109): drop_caches: 1
[pid  5108] <... write resumed>)        = 2097152
[pid  5106] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5104] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5108] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5106] <... openat resumed>)       = 6
[pid  5105] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5104] <... open resumed>)         = 5
[pid  5108] <... munmap resumed>)       = 0
[pid  5105] close(6 <unfinished ...>
[pid  5104] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5105] <... close resumed>)        = 0
[pid  5106] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5106] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5105] close(5 <unfinished ...>
[pid  5104] <... pwritev resumed>)      = 103
[pid  5104] exit_group(0 <unfinished ...>
[pid  5106] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5104] <... exit_group resumed>)   = ?
[pid  5106] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5106] close(6 <unfinished ...>
[pid  5104] +++ exited with 0 +++
[pid  5106] <... close resumed>)        = 0
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=13 /* 0.13 s */} ---
[pid  5108] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5107] <... write resumed>)        = 2097152
[pid  5106] close(5 <unfinished ...>
[pid  5108] <... openat resumed>)       = 6
[pid  5108] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5108] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5107] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5108] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5107] <... munmap resumed>)       = 0
[pid  5072] <... ioctl resumed>)        = 0
[pid  5108] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5108] close(6)                    = 0
[pid  5108] close(5 <unfinished ...>
[pid  5072] close(3 <unfinished ...>
[pid  5107] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5107] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5107] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5107] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5107] close(6)                    = 0
[pid  5106] <... close resumed>)        = 0
[pid  5109] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5107] close(5 <unfinished ...>
[pid  5105] <... close resumed>)        = 0
[pid  5072] <... close resumed>)        = 0
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5106] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5105] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5106] <... open resumed>)         = 5
[pid  5105] <... open resumed>)         = 5
[pid  5106] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5105] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5108] <... close resumed>)        = 0
[pid  5108] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5108] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452./strace-static-x86_64: Process 5110 attached
 <unfinished ...>
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5110
[pid  5110] set_robust_list(0x55555677f660, 24) = 0
[pid  5110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5110] setpgid(0, 0)               = 0
[pid  5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5108] <... pwritev resumed>)      = 103
[pid  5106] <... pwritev resumed>)      = 103
[pid  5105] <... pwritev resumed>)      = 103
[pid  5108] exit_group(0 <unfinished ...>
[pid  5106] exit_group(0 <unfinished ...>
[pid  5105] exit_group(0 <unfinished ...>
[pid  5108] <... exit_group resumed>)   = ?
[pid  5106] <... exit_group resumed>)   = ?
[pid  5105] <... exit_group resumed>)   = ?
[pid  5110] write(3, "1000", 4 <unfinished ...>
[pid  5108] +++ exited with 0 +++
[pid  5106] +++ exited with 0 +++
[pid  5105] +++ exited with 0 +++
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5076] <... openat resumed>)       = 3
[pid  5071] <... openat resumed>)       = 3
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5078] <... ioctl resumed>)        = 0
[pid  5078] close(3 <unfinished ...>
[pid  5110] <... write resumed>)        = 4
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5071] <... ioctl resumed>)        = 0
[pid  5107] <... close resumed>)        = 0
[pid  5078] <... close resumed>)        = 0
[pid  5076] <... ioctl resumed>)        = 0
[pid  5110] close(3 <unfinished ...>
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5076] close(3 <unfinished ...>
[pid  5071] close(3 <unfinished ...>
[pid  5107] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000./strace-static-x86_64: Process 5111 attached
 <unfinished ...>
[pid  5110] <... close resumed>)        = 0
[pid  5109] <... write resumed>)        = 2097152
[pid  5076] <... close resumed>)        = 0
[pid  5071] <... close resumed>)        = 0
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5111
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5110] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5111] set_robust_list(0x55555677f660, 24) = 0
[pid  5111] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5107] <... open resumed>)         = 5
./strace-static-x86_64: Process 5112 attached
[pid  5112] set_robust_list(0x55555677f660, 24) = 0
[pid  5111] <... prctl resumed>)        = 0
[pid  5112] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5111] setpgid(0, 0 <unfinished ...>
[pid  5112] <... prctl resumed>)        = 0
[pid  5111] <... setpgid resumed>)      = 0
[pid  5107] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452./strace-static-x86_64: Process 5113 attached
 <unfinished ...>
[pid  5112] setpgid(0, 0 <unfinished ...>
[pid  5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5110] <... openat resumed>)       = 3
[pid  5109] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5112
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5113
[pid  5112] <... setpgid resumed>)      = 0
[pid  5111] <... openat resumed>)       = 3
[pid  5110] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5113] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5111] write(3, "1000", 4 <unfinished ...>
[pid  5110] <... openat resumed>)       = 4
[pid  5113] <... set_robust_list resumed>) = 0
[pid  5112] <... openat resumed>)       = 3
[pid  5107] <... pwritev resumed>)      = 103
[pid  5110] sendfile(4, 3, [88] <unfinished ...>
[pid  5111] <... write resumed>)        = 4
[pid  5107] exit_group(0 <unfinished ...>
[pid  5112] write(3, "1000", 4 <unfinished ...>
[pid  5111] close(3 <unfinished ...>
[pid  5107] <... exit_group resumed>)   = ?
[pid  5111] <... close resumed>)        = 0
[pid  5107] +++ exited with 0 +++
[pid  5111] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5109] <... munmap resumed>)       = 0
[pid  5112] <... write resumed>)        = 4
[pid  5111] <... openat resumed>)       = 3
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
[pid  5112] close(3 <unfinished ...>
[pid  5111] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5112] <... close resumed>)        = 0
[pid  5111] <... openat resumed>)       = 4
[pid  5070] <... openat resumed>)       = 3
[pid  5112] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5111] sendfile(4, 3, [88] <unfinished ...>
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5113] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5112] <... openat resumed>)       = 3
[pid  5109] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5113] <... prctl resumed>)        = 0
[pid  5113] setpgid(0, 0 <unfinished ...>
[pid  5109] <... openat resumed>)       = 6
[pid  5070] <... ioctl resumed>)        = 0
[pid  5070] close(3 <unfinished ...>
[pid  5112] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5070] <... close resumed>)        = 0
[pid  5112] <... openat resumed>)       = 4
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5114 attached
 <unfinished ...>
[pid  5112] sendfile(4, 3, [88] <unfinished ...>
[pid  5114] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5113] <... setpgid resumed>)      = 0
[pid  5109] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5114
[pid  5114] <... set_robust_list resumed>) = 0
[pid  5114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5114] setpgid(0, 0)               = 0
[pid  5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5109] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5114] <... openat resumed>)       = 3
[pid  5109] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5113] <... openat resumed>)       = 3
[pid  5114] write(3, "1000", 4 <unfinished ...>
[pid  5113] write(3, "1000", 4 <unfinished ...>
[pid  5109] <... ioctl resumed>)        = 0
[pid  5114] <... write resumed>)        = 4
[pid  5113] <... write resumed>)        = 4
[pid  5114] close(3)                    = 0
[pid  5113] close(3 <unfinished ...>
[pid  5114] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5113] <... close resumed>)        = 0
[pid  5114] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5113] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5109] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5114] <... openat resumed>)       = 4
[pid  5113] <... openat resumed>)       = 3
[pid  5109] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5114] sendfile(4, 3, [88] <unfinished ...>
[pid  5113] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5109] close(6 <unfinished ...>
[pid  5113] <... openat resumed>)       = 4
[pid  5109] <... close resumed>)        = 0
[pid  5113] sendfile(4, 3, [88] <unfinished ...>
[pid  5109] close(5)                    = 0
[pid  5109] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5109] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452) = 103
[pid  5109] exit_group(0)               = ?
[pid  5109] +++ exited with 0 +++
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5069] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5069] close(3)                    = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555677f650) = 5115
./strace-static-x86_64: Process 5115 attached
[pid  5115] set_robust_list(0x55555677f660, 24) = 0
[pid  5115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5115] setpgid(0, 0)               = 0
[pid  5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[   61.792168][ T5110] syz-executor166 (5110): drop_caches: 1
[   61.804040][ T5112] syz-executor166 (5112): drop_caches: 1
[   61.812173][ T5111] syz-executor166 (5111): drop_caches: 1
[   61.834195][ T5114] syz-executor166 (5114): drop_caches: 1
[pid  5115] write(3, "1000", 4)         = 4
[pid  5115] close(3)                    = 0
[pid  5115] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[   61.835231][ T5113] syz-executor166 (5113): drop_caches: 1
[pid  5115] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5115] sendfile(4, 3, [88] <unfinished ...>
[pid  5112] <... sendfile resumed> => [103], 15) = 15
[   62.025584][ T5112] syz-executor166 (5112): drop_caches: 1
[   62.029275][ T5111] syz-executor166 (5111): drop_caches: 1
[   62.044670][ T5113] syz-executor166 (5113): drop_caches: 1
[   62.054681][ T5110] syz-executor166 (5110): drop_caches: 1
[   62.058119][ T5115] syz-executor166 (5115): drop_caches: 1
[pid  5112] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5114] <... sendfile resumed> => [103], 15) = 15
[pid  5113] <... sendfile resumed> => [103], 15) = 15
[pid  5112] <... memfd_create resumed>) = 5
[pid  5111] <... sendfile resumed> => [103], 15) = 15
[pid  5113] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5111] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5112] <... mmap resumed>)         = 0x7f299346a000
[pid  5111] <... memfd_create resumed>) = 5
[pid  5111] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5113] <... memfd_create resumed>) = 5
[pid  5113] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5110] <... sendfile resumed> => [103], 15) = 15
[pid  5110] memfd_create("syzkaller", 0) = 5
[pid  5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   62.071450][ T5114] syz-executor166 (5114): drop_caches: 1
[pid  5114] memfd_create("syzkaller", 0) = 5
[pid  5114] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5111] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5113] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5114] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5112] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5111] <... write resumed>)        = 2097152
[pid  5110] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5111] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5114] <... write resumed>)        = 2097152
[pid  5114] munmap(0x7f299346a000, 138412032) = 0
[pid  5113] <... write resumed>)        = 2097152
[pid  5111] <... munmap resumed>)       = 0
[pid  5115] <... sendfile resumed> => [103], 15) = 15
[pid  5115] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5111] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5115] <... memfd_create resumed>) = 5
[pid  5113] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5111] <... openat resumed>)       = 6
[pid  5114] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5114] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5111] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5114] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5111] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5114] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5111] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5115] <... mmap resumed>)         = 0x7f299346a000
[pid  5114] <... ioctl resumed>)        = 0
[pid  5111] <... ioctl resumed>)        = 0
[pid  5111] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5111] close(6 <unfinished ...>
[pid  5113] <... munmap resumed>)       = 0
[pid  5114] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5111] <... close resumed>)        = 0
[pid  5114] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5111] close(5 <unfinished ...>
[pid  5114] close(6 <unfinished ...>
[pid  5112] <... write resumed>)        = 2097152
[pid  5114] <... close resumed>)        = 0
[   62.192031][ T5115] syz-executor166 (5115): drop_caches: 1
[pid  5114] close(5 <unfinished ...>
[pid  5113] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5115] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5113] <... openat resumed>)       = 6
[pid  5112] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5110] <... write resumed>)        = 2097152
[pid  5113] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5112] <... munmap resumed>)       = 0
[pid  5110] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5113] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5112] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5110] <... munmap resumed>)       = 0
[pid  5113] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5112] <... openat resumed>)       = 6
[pid  5112] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5112] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5113] <... ioctl resumed>)        = 0
[pid  5112] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5114] <... close resumed>)        = 0
[pid  5113] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5112] close(6 <unfinished ...>
[pid  5110] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5112] <... close resumed>)        = 0
[pid  5112] close(5 <unfinished ...>
[pid  5113] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5110] <... openat resumed>)       = 6
[pid  5113] close(6 <unfinished ...>
[pid  5111] <... close resumed>)        = 0
[pid  5113] <... close resumed>)        = 0
[pid  5110] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5113] close(5 <unfinished ...>
[pid  5110] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5111] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5114] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5111] <... open resumed>)         = 5
[pid  5111] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5114] <... open resumed>)         = 5
[pid  5114] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452) = 103
[pid  5114] exit_group(0)               = ?
[pid  5114] +++ exited with 0 +++
[pid  5110] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=15 /* 0.15 s */} ---
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5070] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5111] <... pwritev resumed>)      = 103
[pid  5070] close(3 <unfinished ...>
[pid  5111] exit_group(0 <unfinished ...>
[pid  5070] <... close resumed>)        = 0
[pid  5111] <... exit_group resumed>)   = ?
[pid  5110] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5111] +++ exited with 0 +++
[pid  5110] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} ---
./strace-static-x86_64: Process 5116 attached
[pid  5115] <... write resumed>)        = 2097152
[pid  5113] <... close resumed>)        = 0
[pid  5112] <... close resumed>)        = 0
[pid  5110] close(6 <unfinished ...>
[pid  5078] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5116
[pid  5110] <... close resumed>)        = 0
[pid  5078] <... restart_syscall resumed>) = 0
[pid  5115] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5110] close(5 <unfinished ...>
[pid  5116] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5112] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5116] <... set_robust_list resumed>) = 0
[pid  5112] <... open resumed>)         = 5
[pid  5116] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5112] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5116] <... prctl resumed>)        = 0
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5116] setpgid(0, 0 <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5116] <... setpgid resumed>)      = 0
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5115] <... munmap resumed>)       = 0
[pid  5078] <... ioctl resumed>)        = 0
[pid  5116] write(3, "1000", 4 <unfinished ...>
[pid  5112] <... pwritev resumed>)      = 103
[pid  5116] <... write resumed>)        = 4
[pid  5112] exit_group(0 <unfinished ...>
[pid  5078] close(3 <unfinished ...>
[pid  5116] close(3 <unfinished ...>
[pid  5112] <... exit_group resumed>)   = ?
[pid  5078] <... close resumed>)        = 0
[pid  5116] <... close resumed>)        = 0
[pid  5112] +++ exited with 0 +++
[pid  5116] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5115] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=20 /* 0.20 s */} ---
[pid  5116] <... openat resumed>)       = 3
[pid  5116] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5113] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5116] <... openat resumed>)       = 4
[pid  5115] <... openat resumed>)       = 6
[pid  5113] <... open resumed>)         = 5
./strace-static-x86_64: Process 5117 attached
[pid  5116] sendfile(4, 3, [88] <unfinished ...>
[pid  5115] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5117] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5115] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5076] <... openat resumed>)       = 3
[pid  5117] <... set_robust_list resumed>) = 0
[pid  5115] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5113] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5117
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5117] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5115] <... ioctl resumed>)        = 0
[pid  5076] <... ioctl resumed>)        = 0
[pid  5076] close(3 <unfinished ...>
[pid  5117] <... prctl resumed>)        = 0
[pid  5076] <... close resumed>)        = 0
[pid  5117] setpgid(0, 0 <unfinished ...>
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5117] <... setpgid resumed>)      = 0
[pid  5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
./strace-static-x86_64: Process 5118 attached
[pid  5117] write(3, "1000", 4 <unfinished ...>
[pid  5115] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5110] <... close resumed>)        = 0
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5118
[pid  5117] <... write resumed>)        = 4
[pid  5115] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5117] close(3 <unfinished ...>
[pid  5115] close(6 <unfinished ...>
[pid  5110] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5117] <... close resumed>)        = 0
[pid  5115] <... close resumed>)        = 0
[pid  5118] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5117] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5115] close(5 <unfinished ...>
[pid  5110] <... open resumed>)         = 5
[pid  5118] <... set_robust_list resumed>) = 0
[pid  5113] <... pwritev resumed>)      = 103
[pid  5118] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5117] <... openat resumed>)       = 3
[pid  5113] exit_group(0 <unfinished ...>
[pid  5110] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5118] <... prctl resumed>)        = 0
[pid  5113] <... exit_group resumed>)   = ?
[pid  5117] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5118] setpgid(0, 0 <unfinished ...>
[pid  5117] <... openat resumed>)       = 4
[pid  5113] +++ exited with 0 +++
[pid  5118] <... setpgid resumed>)      = 0
[pid  5117] sendfile(4, 3, [88] <unfinished ...>
[pid  5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5071] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5118] <... openat resumed>)       = 3
[pid  5110] <... pwritev resumed>)      = 103
[pid  5118] write(3, "1000", 4 <unfinished ...>
[pid  5110] exit_group(0 <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5118] <... write resumed>)        = 4
[pid  5110] <... exit_group resumed>)   = ?
[pid  5118] close(3 <unfinished ...>
[pid  5071] <... openat resumed>)       = 3
[pid  5118] <... close resumed>)        = 0
[pid  5071] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5071] close(3 <unfinished ...>
[pid  5118] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5118] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5118] sendfile(4, 3, [88] <unfinished ...>
[pid  5071] <... close resumed>)        = 0
[pid  5115] <... close resumed>)        = 0
[pid  5110] +++ exited with 0 +++
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5119 attached
 <unfinished ...>
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=21 /* 0.21 s */} ---
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5119
[pid  5119] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5115] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5119] <... set_robust_list resumed>) = 0
[pid  5115] <... open resumed>)         = 5
[pid  5119] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5115] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5119] <... prctl resumed>)        = 0
[pid  5119] setpgid(0, 0 <unfinished ...>
[pid  5072] <... openat resumed>)       = 3
[pid  5119] <... setpgid resumed>)      = 0
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5072] <... ioctl resumed>)        = 0
[pid  5119] <... openat resumed>)       = 3
[pid  5072] close(3)                    = 0
[pid  5119] write(3, "1000", 4 <unfinished ...>
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5119] <... write resumed>)        = 4
[pid  5119] close(3)                    = 0
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5120
./strace-static-x86_64: Process 5120 attached
[pid  5119] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5120] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5119] <... openat resumed>)       = 3
[pid  5119] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5120] <... set_robust_list resumed>) = 0
[pid  5115] <... pwritev resumed>)      = 103
[pid  5120] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5115] exit_group(0 <unfinished ...>
[pid  5120] <... prctl resumed>)        = 0
[pid  5119] <... openat resumed>)       = 4
[pid  5115] <... exit_group resumed>)   = ?
[pid  5120] setpgid(0, 0)               = 0
[pid  5119] sendfile(4, 3, [88] <unfinished ...>
[pid  5115] +++ exited with 0 +++
[pid  5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5120] <... openat resumed>)       = 3
[pid  5069] <... openat resumed>)       = 3
[pid  5120] write(3, "1000", 4)         = 4
[pid  5120] close(3 <unfinished ...>
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5120] <... close resumed>)        = 0
[pid  5069] <... ioctl resumed>)        = 0
[pid  5069] close(3 <unfinished ...>
[pid  5120] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5069] <... close resumed>)        = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5120] <... openat resumed>)       = 3
./strace-static-x86_64: Process 5121 attached
[pid  5120] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5121] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5120] <... openat resumed>)       = 4
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5121
[pid  5121] <... set_robust_list resumed>) = 0
[pid  5121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5121] setpgid(0, 0)               = 0
[pid  5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5121] write(3, "1000", 4)         = 4
[pid  5121] close(3)                    = 0
[pid  5121] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5121] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5121] sendfile(4, 3, [88] <unfinished ...>
[   62.566793][ T5116] syz-executor166 (5116): drop_caches: 1
[   62.592760][ T5117] syz-executor166 (5117): drop_caches: 1
[   62.597459][ T5118] syz-executor166 (5118): drop_caches: 1
[   62.657979][ T5121] syz-executor166 (5121): drop_caches: 1
[   62.661172][ T5119] syz-executor166 (5119): drop_caches: 1
[   62.682959][ T5120] syz-executor166 (5120): drop_caches: 1
[pid  5120] sendfile(4, 3, [88] <unfinished ...>
[pid  5116] <... sendfile resumed> => [103], 15) = 15
[pid  5117] <... sendfile resumed> => [103], 15) = 15
[pid  5117] memfd_create("syzkaller", 0) = 5
[pid  5117] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5116] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5118] <... sendfile resumed> => [103], 15) = 15
[pid  5116] <... memfd_create resumed>) = 5
[pid  5118] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5116] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   62.727333][ T5117] syz-executor166 (5117): drop_caches: 1
[   62.761378][ T5116] syz-executor166 (5116): drop_caches: 1
[   62.769071][ T5118] syz-executor166 (5118): drop_caches: 1
[pid  5119] <... sendfile resumed> => [103], 15) = 15
[pid  5118] <... memfd_create resumed>) = 5
[pid  5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5117] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5119] memfd_create("syzkaller", 0) = 5
[pid  5120] <... sendfile resumed> => [103], 15) = 15
[pid  5119] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5120] memfd_create("syzkaller", 0) = 5
[pid  5116] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5120] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5121] <... sendfile resumed> => [103], 15) = 15
[pid  5121] memfd_create("syzkaller", 0) = 5
[   62.799686][ T5119] syz-executor166 (5119): drop_caches: 1
[   62.833076][ T5120] syz-executor166 (5120): drop_caches: 1
[   62.836804][ T5121] syz-executor166 (5121): drop_caches: 1
[pid  5118] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5120] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5119] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5117] <... write resumed>)        = 2097152
[pid  5117] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5116] <... write resumed>)        = 2097152
[pid  5118] <... write resumed>)        = 2097152
[pid  5121] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5120] <... write resumed>)        = 2097152
[pid  5118] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5116] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5120] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5119] <... write resumed>)        = 2097152
[pid  5118] <... munmap resumed>)       = 0
[pid  5117] <... munmap resumed>)       = 0
[pid  5120] <... munmap resumed>)       = 0
[pid  5119] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5117] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5116] <... munmap resumed>)       = 0
[pid  5118] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5117] <... openat resumed>)       = 6
[pid  5121] <... write resumed>)        = 2097152
[pid  5120] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5119] <... munmap resumed>)       = 0
[pid  5118] <... openat resumed>)       = 6
[pid  5116] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5121] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5120] <... openat resumed>)       = 6
[pid  5119] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5118] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5117] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5116] <... openat resumed>)       = 6
[pid  5120] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5119] <... openat resumed>)       = 6
[pid  5118] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5117] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5116] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5119] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5118] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5117] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5116] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5120] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5119] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5118] <... ioctl resumed>)        = 0
[pid  5117] <... ioctl resumed>)        = 0
[pid  5116] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5120] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5119] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5116] <... ioctl resumed>)        = 0
[pid  5120] <... ioctl resumed>)        = 0
[pid  5119] <... ioctl resumed>)        = 0
[pid  5118] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5119] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5117] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5116] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5119] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5118] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5117] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5116] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5121] <... munmap resumed>)       = 0
[pid  5120] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5119] close(6 <unfinished ...>
[pid  5118] close(6 <unfinished ...>
[pid  5117] close(6 <unfinished ...>
[pid  5116] close(6 <unfinished ...>
[pid  5121] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5120] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5118] <... close resumed>)        = 0
[pid  5116] <... close resumed>)        = 0
[pid  5121] <... openat resumed>)       = 6
[pid  5120] close(6 <unfinished ...>
[pid  5118] close(5 <unfinished ...>
[pid  5120] <... close resumed>)        = 0
[pid  5119] <... close resumed>)        = 0
[pid  5117] <... close resumed>)        = 0
[pid  5116] close(5 <unfinished ...>
[pid  5119] close(5 <unfinished ...>
[pid  5117] close(5 <unfinished ...>
[pid  5121] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5120] close(5 <unfinished ...>
[pid  5121] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5121] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5121] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5121] close(6)                    = 0
[pid  5121] close(5)                    = 0
[pid  5120] <... close resumed>)        = 0
[pid  5120] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5118] <... close resumed>)        = 0
[pid  5120] <... open resumed>)         = 5
[pid  5118] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5120] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5118] <... open resumed>)         = 5
[pid  5118] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5117] <... close resumed>)        = 0
[pid  5117] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5121] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5121] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5119] <... close resumed>)        = 0
[pid  5117] <... open resumed>)         = 5
[pid  5117] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5116] <... close resumed>)        = 0
[pid  5119] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5121] <... pwritev resumed>)      = 103
[pid  5120] <... pwritev resumed>)      = 103
[pid  5118] <... pwritev resumed>)      = 103
[pid  5121] exit_group(0 <unfinished ...>
[pid  5120] exit_group(0 <unfinished ...>
[pid  5119] <... open resumed>)         = 5
[pid  5118] exit_group(0 <unfinished ...>
[pid  5121] <... exit_group resumed>)   = ?
[pid  5120] <... exit_group resumed>)   = ?
[pid  5118] <... exit_group resumed>)   = ?
[pid  5120] +++ exited with 0 +++
[pid  5119] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5118] +++ exited with 0 +++
[pid  5117] <... pwritev resumed>)      = 103
[pid  5116] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5121] +++ exited with 0 +++
[pid  5117] exit_group(0 <unfinished ...>
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=14 /* 0.14 s */} ---
[pid  5117] <... exit_group resumed>)   = ?
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=17 /* 0.17 s */} ---
[pid  5116] <... open resumed>)         = 5
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=15 /* 0.15 s */} ---
[pid  5116] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5119] <... pwritev resumed>)      = 103
[pid  5117] +++ exited with 0 +++
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5119] exit_group(0 <unfinished ...>
[pid  5076] <... openat resumed>)       = 3
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5069] <... openat resumed>)       = 3
[pid  5119] <... exit_group resumed>)   = ?
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5076] <... ioctl resumed>)        = 0
[pid  5072] <... openat resumed>)       = 3
[pid  5069] <... ioctl resumed>)        = 0
[pid  5076] close(3 <unfinished ...>
[pid  5069] close(3 <unfinished ...>
[pid  5076] <... close resumed>)        = 0
[pid  5069] <... close resumed>)        = 0
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5116] <... pwritev resumed>)      = 103
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5116] exit_group(0 <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5116] <... exit_group resumed>)   = ?
[pid  5119] +++ exited with 0 +++
[pid  5116] +++ exited with 0 +++
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5122
./strace-static-x86_64: Process 5122 attached
[pid  5078] <... ioctl resumed>)        = 0
[pid  5072] <... ioctl resumed>)        = 0
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
./strace-static-x86_64: Process 5123 attached
[pid  5122] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5078] close(3 <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5123
[pid  5072] close(3 <unfinished ...>
[pid  5123] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5122] <... set_robust_list resumed>) = 0
[pid  5078] <... close resumed>)        = 0
[pid  5123] <... set_robust_list resumed>) = 0
[pid  5122] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5072] <... close resumed>)        = 0
[pid  5123] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5122] <... prctl resumed>)        = 0
[pid  5123] <... prctl resumed>)        = 0
[pid  5122] setpgid(0, 0 <unfinished ...>
[pid  5123] setpgid(0, 0 <unfinished ...>
[pid  5122] <... setpgid resumed>)      = 0
[pid  5123] <... setpgid resumed>)      = 0
[pid  5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5124 attached
 <unfinished ...>
[pid  5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5070] <... openat resumed>)       = 3
[pid  5124] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5123] <... openat resumed>)       = 3
[pid  5122] <... openat resumed>)       = 3
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5124] <... set_robust_list resumed>) = 0
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5070] <... ioctl resumed>)        = 0
[pid  5124] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5123] write(3, "1000", 4 <unfinished ...>
[pid  5071] <... openat resumed>)       = 3
[pid  5070] close(3 <unfinished ...>
[pid  5124] <... prctl resumed>)        = 0
[pid  5123] <... write resumed>)        = 4
[pid  5122] write(3, "1000", 4 <unfinished ...>
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5070] <... close resumed>)        = 0
[pid  5124] setpgid(0, 0 <unfinished ...>
[pid  5123] close(3 <unfinished ...>
[pid  5122] <... write resumed>)        = 4
[pid  5071] <... ioctl resumed>)        = 0
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5126 attached
./strace-static-x86_64: Process 5125 attached
 <unfinished ...>
[pid  5124] <... setpgid resumed>)      = 0
[pid  5123] <... close resumed>)        = 0
[pid  5122] close(3 <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5124
[pid  5071] close(3 <unfinished ...>
[pid  5126] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5123] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5122] <... close resumed>)        = 0
[pid  5071] <... close resumed>)        = 0
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5126
[pid  5126] <... set_robust_list resumed>) = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5126] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5124] <... openat resumed>)       = 3
[pid  5123] <... openat resumed>)       = 3
[pid  5122] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5126] <... prctl resumed>)        = 0
[pid  5126] setpgid(0, 0 <unfinished ...>
[pid  5122] <... openat resumed>)       = 3
[pid  5126] <... setpgid resumed>)      = 0
[pid  5124] write(3, "1000", 4 <unfinished ...>
[pid  5123] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY./strace-static-x86_64: Process 5127 attached
 <unfinished ...>
[pid  5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5125] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5124] <... write resumed>)        = 4
[pid  5123] <... openat resumed>)       = 4
[pid  5122] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5125
[pid  5126] write(3, "1000", 4 <unfinished ...>
[pid  5124] close(3 <unfinished ...>
[pid  5123] sendfile(4, 3, [88] <unfinished ...>
[pid  5122] <... openat resumed>)       = 4
[pid  5126] <... write resumed>)        = 4
[pid  5124] <... close resumed>)        = 0
[pid  5126] close(3 <unfinished ...>
[pid  5124] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5126] <... close resumed>)        = 0
[pid  5124] <... openat resumed>)       = 3
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5127
[pid  5125] <... set_robust_list resumed>) = 0
[pid  5126] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5125] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5124] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5127] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5126] <... openat resumed>)       = 3
[pid  5125] <... prctl resumed>)        = 0
[pid  5124] <... openat resumed>)       = 4
[pid  5127] <... set_robust_list resumed>) = 0
[pid  5126] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5125] setpgid(0, 0 <unfinished ...>
[pid  5126] <... openat resumed>)       = 4
[pid  5125] <... setpgid resumed>)      = 0
[pid  5124] sendfile(4, 3, [88] <unfinished ...>
[pid  5122] sendfile(4, 3, [88] <unfinished ...>
[pid  5127] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5126] sendfile(4, 3, [88] <unfinished ...>
[pid  5127] <... prctl resumed>)        = 0
[pid  5125] <... openat resumed>)       = 3
[pid  5127] setpgid(0, 0)               = 0
[pid  5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5125] write(3, "1000", 4)         = 4
[pid  5125] close(3)                    = 0
[pid  5127] <... openat resumed>)       = 3
[pid  5127] write(3, "1000", 4 <unfinished ...>
[pid  5125] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5127] <... write resumed>)        = 4
[pid  5125] <... openat resumed>)       = 3
[pid  5125] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5127] close(3 <unfinished ...>
[pid  5125] <... openat resumed>)       = 4
[pid  5127] <... close resumed>)        = 0
[pid  5127] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5125] sendfile(4, 3, [88] <unfinished ...>
[pid  5127] <... openat resumed>)       = 3
[pid  5127] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   63.266332][ T5122] syz-executor166 (5122): drop_caches: 1
[   63.274354][ T5125] syz-executor166 (5125): drop_caches: 1
[   63.282075][ T5123] syz-executor166 (5123): drop_caches: 1
[   63.291955][ T5124] syz-executor166 (5124): drop_caches: 1
[   63.311904][ T5127] syz-executor166 (5127): drop_caches: 1
[   63.312128][ T5126] syz-executor166 (5126): drop_caches: 1
[   63.349891][ T2438] 
[   63.352233][ T2438] ======================================================
[   63.359243][ T2438] WARNING: possible circular locking dependency detected
[   63.366250][ T2438] 6.7.0-rc1-syzkaller-00012-g9bacdd8996c7 #0 Not tainted
[   63.373266][ T2438] ------------------------------------------------------
[   63.380267][ T2438] kworker/u4:7/2438 is trying to acquire lock:
[   63.386403][ T2438] ffff8880784b9180 (&rl->lock){++++}-{3:3}, at: ntfs_read_folio+0x1a98/0x2430
[   63.395312][ T2438] 
[   63.395312][ T2438] but task is already holding lock:
[   63.402671][ T2438] ffff8880784bc390 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4a/0x730
[   63.405235][ T5125] syz-executor166 (5125): drop_caches: 1
[   63.411646][ T2438] 
[   63.411646][ T2438] which lock already depends on the new lock.
[   63.411646][ T2438] 
[   63.411651][ T2438] 
[   63.411651][ T2438] the existing dependency chain (in reverse order) is:
[   63.411656][ T2438] 
[   63.411656][ T2438] -> #1 (&ni->mrec_lock){+.+.}-{3:3}:
[   63.411680][ T2438]        __mutex_lock+0x175/0x9d0
[   63.411706][ T2438]        map_mft_record+0x4a/0x730
[   63.454358][ T2438]        ntfs_attr_extend_allocation+0x268/0x3840
[   63.456621][ T5123] syz-executor166 (5123): drop_caches: 1
[   63.460764][ T2438]        ntfs_file_write_iter+0xaa0/0x2070
[   63.460783][ T2438]        do_iter_readv_writev+0x21e/0x3c0
[   63.460798][ T2438]        do_iter_write+0x17f/0x7f0
[   63.460811][ T2438]        vfs_writev+0x221/0x700
[   63.460824][ T2438]        __x64_sys_pwritev+0x228/0x300
[   63.460840][ T2438]        do_syscall_64+0x40/0x110
[   63.460858][ T2438]        entry_SYSCALL_64_after_hwframe+0x63/0x6b
[   63.490127][ T5127] syz-executor166 (5127): drop_caches: 1
[   63.493307][ T2438] 
[   63.493307][ T2438] -> #0 (&rl->lock){++++}-{3:3}:
[pid  5127] sendfile(4, 3, [88] => [103], 15) = 15
[pid  5126] <... sendfile resumed> => [103], 15) = 15
[pid  5125] <... sendfile resumed> => [103], 15) = 15
[pid  5123] <... sendfile resumed> => [103], 15) = 15
[pid  5127] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5126] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5125] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5123] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5125] <... memfd_create resumed>) = 5
[pid  5123] <... memfd_create resumed>) = 5
[pid  5125] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5123] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5125] <... mmap resumed>)         = 0x7f299346a000
[pid  5123] <... mmap resumed>)         = 0x7f299346a000
[   63.517437][ T2438]        __lock_acquire+0x2464/0x3b10
[   63.522810][ T2438]        lock_acquire+0x1ae/0x520
[   63.527834][ T2438]        down_read+0x9a/0x330
[   63.528241][ T5126] syz-executor166 (5126): drop_caches: 1
[   63.532501][ T2438]        ntfs_read_folio+0x1a98/0x2430
[   63.543559][ T2438]        filemap_read_folio+0xe9/0x2c0
[   63.549017][ T2438]        do_read_cache_folio+0x205/0x540
[   63.554661][ T2438]        read_cache_page+0x5b/0x160
[   63.559872][ T2438]        ntfs_sync_mft_mirror+0x242/0x1ed0
[pid  5126] <... memfd_create resumed>) = 5
[pid  5126] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5127] <... memfd_create resumed>) = 5
[pid  5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   63.565690][ T2438]        write_mft_record_nolock+0x1977/0x1da0
[   63.571855][ T2438]        write_mft_record+0x14b/0x380
[   63.577238][ T2438]        __ntfs_write_inode+0x91b/0xc30
[   63.582783][ T2438]        __writeback_single_inode+0xa91/0xe90
[   63.588865][ T2438]        writeback_sb_inodes+0x599/0x1080
[   63.594592][ T2438]        __writeback_inodes_wb+0xff/0x2d0
[   63.600340][ T2438]        wb_writeback+0x7f8/0xaa0
[   63.605372][ T2438]        wb_workfn+0x87c/0xfe0
[   63.610154][ T2438]        process_one_work+0x886/0x15d0
[pid  5125] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5123] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5127] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5126] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5125] <... write resumed>)        = 2097152
[pid  5126] <... write resumed>)        = 2097152
[pid  5125] munmap(0x7f299346a000, 138412032) = 0
[pid  5125] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5123] <... write resumed>)        = 2097152
[pid  5125] <... openat resumed>)       = 6
[pid  5125] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5125] ioctl(6, LOOP_CLR_FD)       = 0
[   63.615635][ T2438]        worker_thread+0x8b9/0x1290
[   63.620834][ T2438]        kthread+0x2c6/0x3a0
[   63.625426][ T2438]        ret_from_fork+0x45/0x80
[   63.630360][ T2438]        ret_from_fork_asm+0x11/0x20
[   63.635646][ T2438] 
[   63.635646][ T2438] other info that might help us debug this:
[   63.635646][ T2438] 
[   63.645864][ T2438]  Possible unsafe locking scenario:
[   63.645864][ T2438] 
[   63.653306][ T2438]        CPU0                    CPU1
[   63.658673][ T2438]        ----                    ----
[   63.664030][ T2438]   lock(&ni->mrec_lock);
[pid  5123] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5125] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5125] close(6)                    = 0
[pid  5125] close(5 <unfinished ...>
[pid  5123] <... munmap resumed>)       = 0
[pid  5123] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5123] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5123] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5127] <... write resumed>)        = 2097152
[pid  5126] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5127] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5126] <... munmap resumed>)       = 0
[pid  5123] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5127] <... munmap resumed>)       = 0
[pid  5126] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5123] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5127] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5126] <... openat resumed>)       = 6
[pid  5123] close(6 <unfinished ...>
[pid  5127] <... openat resumed>)       = 6
[pid  5123] <... close resumed>)        = 0
[pid  5127] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5123] close(5 <unfinished ...>
[pid  5127] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5127] ioctl(6, LOOP_CLR_FD)       = 0
[   63.668359][ T2438]                                lock(&rl->lock);
[   63.674779][ T2438]                                lock(&ni->mrec_lock);
[   63.681635][ T2438]   rlock(&rl->lock);
[   63.685612][ T2438] 
[   63.685612][ T2438]  *** DEADLOCK ***
[   63.685612][ T2438] 
[   63.693741][ T2438] 4 locks held by kworker/u4:7/2438:
[   63.699018][ T2438]  #0: ffff888015a40938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0
[pid  5126] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5127] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5126] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5127] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5126] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5127] close(6 <unfinished ...>
[pid  5126] <... ioctl resumed>)        = 0
[pid  5127] <... close resumed>)        = 0
[pid  5127] close(5 <unfinished ...>
[pid  5126] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5126] close(6)                    = 0
[pid  5126] close(5 <unfinished ...>
[pid  5123] <... close resumed>)        = 0
[pid  5123] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5125] <... close resumed>)        = 0
[   63.709655][ T2438]  #1: ffffc90009ba7d80 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0
[   63.721529][ T2438]  #2: ffff8880193a40e0 (&type->s_umount_key#66){++++}-{3:3}, at: super_trylock_shared+0x1e/0xf0
[   63.732085][ T2438]  #3: ffff8880784bc390 (&ni->mrec_lock){+.+.}-{3:3}, at: map_mft_record+0x4a/0x730
[   63.741493][ T2438] 
[   63.741493][ T2438] stack backtrace:
[   63.747373][ T2438] CPU: 1 PID: 2438 Comm: kworker/u4:7 Not tainted 6.7.0-rc1-syzkaller-00012-g9bacdd8996c7 #0
[   63.757522][ T2438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
[pid  5126] <... close resumed>)        = 0
[pid  5127] <... close resumed>)        = 0
[pid  5125] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5126] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[   63.767590][ T2438] Workqueue: writeback wb_workfn (flush-7:2)
[   63.773578][ T2438] Call Trace:
[   63.776862][ T2438]  <TASK>
[   63.779794][ T2438]  dump_stack_lvl+0xd9/0x1b0
[   63.784401][ T2438]  check_noncircular+0x317/0x400
[   63.789357][ T2438]  ? print_circular_bug+0x5c0/0x5c0
[   63.794570][ T2438]  ? lockdep_lock+0xc6/0x200
[   63.799182][ T2438]  ? hlock_class+0x130/0x130
[   63.803798][ T2438]  __lock_acquire+0x2464/0x3b10
[   63.808687][ T2438]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[   63.814709][ T2438]  lock_acquire+0x1ae/0x520
[   63.819258][ T2438]  ? ntfs_read_folio+0x1a98/0x2430
[   63.824407][ T2438]  ? lock_sync+0x190/0x190
[   63.828840][ T2438]  ? find_held_lock+0x2d/0x110
[   63.833618][ T2438]  ? preempt_count_sub+0x160/0x160
[   63.838743][ T2438]  down_read+0x9a/0x330
[   63.842904][ T2438]  ? ntfs_read_folio+0x1a98/0x2430
[   63.848031][ T2438]  ? rwsem_down_read_slowpath+0xb20/0xb20
[   63.853765][ T2438]  ? mark_held_locks+0x9f/0xe0
[   63.858548][ T2438]  ? _raw_read_unlock_irqrestore+0x4e/0x70
[   63.864365][ T2438]  ntfs_read_folio+0x1a98/0x2430
[   63.869339][ T2438]  ? __print_lock_name+0x260/0x260
[   63.874473][ T2438]  ? ntfs_end_buffer_async_read+0x18e0/0x18e0
[   63.880575][ T2438]  ? folio_add_lru+0x451/0x7f0
[   63.885365][ T2438]  ? ntfs_end_buffer_async_read+0x18e0/0x18e0
[   63.891450][ T2438]  filemap_read_folio+0xe9/0x2c0
[   63.896397][ T2438]  ? __folio_lock_killable+0x20/0x20
[   63.901684][ T2438]  ? __filemap_get_folio+0x2b0/0xaa0
[   63.906982][ T2438]  ? find_held_lock+0x2d/0x110
[   63.911770][ T2438]  do_read_cache_folio+0x205/0x540
[   63.916879][ T2438]  ? ntfs_end_buffer_async_read+0x18e0/0x18e0
[   63.922952][ T2438]  read_cache_page+0x5b/0x160
[   63.927625][ T2438]  ntfs_sync_mft_mirror+0x242/0x1ed0
[   63.932909][ T2438]  ? should_fail_request+0x80/0x80
[   63.938022][ T2438]  ? preempt_count_sub+0x160/0x160
[   63.943128][ T2438]  ? ntfs_mft_bitmap_extend_allocation_nolock+0x1f10/0x1f10
[   63.950433][ T2438]  write_mft_record_nolock+0x1977/0x1da0
[   63.956089][ T2438]  ? mark_held_locks+0x9f/0xe0
[   63.960881][ T2438]  ? ntfs_sync_mft_mirror+0x1ed0/0x1ed0
[   63.966452][ T2438]  ? preempt_count_sub+0x160/0x160
[   63.971592][ T2438]  write_mft_record+0x14b/0x380
[   63.976461][ T2438]  __ntfs_write_inode+0x91b/0xc30
[   63.981505][ T2438]  __writeback_single_inode+0xa91/0xe90
[   63.987054][ T2438]  ? __mark_inode_dirty+0xd60/0xd60
[   63.992263][ T2438]  ? _raw_spin_unlock+0x28/0x40
[   63.997124][ T2438]  ? wbc_attach_and_unlock_inode+0x561/0x910
[   64.003119][ T2438]  writeback_sb_inodes+0x599/0x1080
[   64.008321][ T2438]  ? sync_inode_metadata+0xe0/0xe0
[   64.013435][ T2438]  ? do_raw_spin_lock+0x12e/0x2b0
[   64.018465][ T2438]  ? move_expired_inodes+0x59e/0x850
[   64.023768][ T2438]  __writeback_inodes_wb+0xff/0x2d0
[   64.028990][ T2438]  ? writeback_sb_inodes+0x1080/0x1080
[   64.034468][ T2438]  ? queue_io+0x3ed/0x4e0
[   64.035253][ T5124] syz-executor166 (5124): drop_caches: 1
[   64.038788][ T2438]  wb_writeback+0x7f8/0xaa0
[   64.038810][ T2438]  ? __writeback_inodes_wb+0x2d0/0x2d0
[   64.038831][ T2438]  ? get_nr_dirty_inodes+0x176/0x1e0
[   64.054432][ T5122] syz-executor166 (5122): drop_caches: 1
[   64.059595][ T2438]  wb_workfn+0x87c/0xfe0
[pid  5127] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5124] <... sendfile resumed> => [103], 15) = 15
[pid  5124] memfd_create("syzkaller", 0) = 5
[pid  5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5124] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5122] <... sendfile resumed> => [103], 15) = 15
[pid  5122] memfd_create("syzkaller", 0) = 5
[   64.059615][ T2438]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[   64.059645][ T2438]  ? inode_wait_for_writeback+0x30/0x30
[   64.059664][ T2438]  ? lock_sync+0x190/0x190
[   64.085423][ T2438]  ? lock_sync+0x190/0x190
[   64.089870][ T2438]  process_one_work+0x886/0x15d0
[   64.094831][ T2438]  ? lock_sync+0x190/0x190
[   64.099254][ T2438]  ? workqueue_congested+0x300/0x300
[   64.104558][ T2438]  ? assign_work+0x1a0/0x250
[   64.109160][ T2438]  worker_thread+0x8b9/0x1290
[   64.113841][ T2438]  ? __kthread_parkme+0x14b/0x220
[pid  5122] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5127] <... open resumed>)         = 5
[pid  5126] <... open resumed>)         = 5
[pid  5125] <... open resumed>)         = 5
[pid  5124] <... write resumed>)        = 2097152
[pid  5123] <... open resumed>)         = 5
[pid  5127] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5126] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5125] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5124] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5123] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5122] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5127] <... pwritev resumed>)      = 103
[pid  5126] <... pwritev resumed>)      = 103
[pid  5125] <... pwritev resumed>)      = 103
[pid  5124] <... munmap resumed>)       = 0
[pid  5123] <... pwritev resumed>)      = 103
[pid  5127] exit_group(0 <unfinished ...>
[pid  5126] exit_group(0 <unfinished ...>
[pid  5124] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5127] <... exit_group resumed>)   = ?
[pid  5126] <... exit_group resumed>)   = ?
[pid  5125] exit_group(0 <unfinished ...>
[pid  5124] <... openat resumed>)       = 6
[pid  5123] exit_group(0 <unfinished ...>
[pid  5127] +++ exited with 0 +++
[pid  5126] +++ exited with 0 +++
[pid  5125] <... exit_group resumed>)   = ?
[pid  5123] <... exit_group resumed>)   = ?
[pid  5124] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5124] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5125] +++ exited with 0 +++
[pid  5123] +++ exited with 0 +++
[pid  5122] <... write resumed>)        = 2097152
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
[pid  5122] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} ---
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5124] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5071] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5070] <... openat resumed>)       = 3
[pid  5124] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5122] <... munmap resumed>)       = 0
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5071] <... restart_syscall resumed>) = 0
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5124] close(6 <unfinished ...>
[pid  5070] <... ioctl resumed>)        = 0
[pid  5070] close(3 <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5070] <... close resumed>)        = 0
[pid  5071] <... openat resumed>)       = 3
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5124] <... close resumed>)        = 0
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5071] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 5128 attached
 <unfinished ...>
[pid  5124] close(5 <unfinished ...>
[pid  5122] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5076] <... openat resumed>)       = 3
[pid  5072] <... openat resumed>)       = 3
[pid  5071] <... ioctl resumed>)        = 0
[pid  5128] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5071] close(3 <unfinished ...>
[pid  5128] <... set_robust_list resumed>) = 0
[pid  5122] <... openat resumed>)       = 6
[pid  5076] <... ioctl resumed>)        = 0
[   64.118874][ T2438]  ? process_one_work+0x15d0/0x15d0
[   64.124090][ T2438]  kthread+0x2c6/0x3a0
[   64.128171][ T2438]  ? _raw_spin_unlock_irq+0x23/0x50
[   64.133385][ T2438]  ? kthread_complete_and_exit+0x40/0x40
[   64.139032][ T2438]  ret_from_fork+0x45/0x80
[   64.143466][ T2438]  ? kthread_complete_and_exit+0x40/0x40
[   64.149115][ T2438]  ret_from_fork_asm+0x11/0x20
[   64.153920][ T2438]  </TASK>
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5071] <... close resumed>)        = 0
[pid  5128] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5122] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5076] close(3 <unfinished ...>
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5128
[pid  5076] <... close resumed>)        = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5129 attached
 <unfinished ...>
[pid  5128] <... prctl resumed>)        = 0
[pid  5122] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5129
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5130
[pid  5128] setpgid(0, 0 <unfinished ...>
[pid  5122] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5072] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 5130 attached
[pid  5129] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5128] <... setpgid resumed>)      = 0
[pid  5122] <... ioctl resumed>)        = 0
[pid  5130] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5129] <... set_robust_list resumed>) = 0
[pid  5072] close(3 <unfinished ...>
[pid  5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5130] <... set_robust_list resumed>) = 0
[pid  5129] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5072] <... close resumed>)        = 0
[pid  5130] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5129] <... prctl resumed>)        = 0
[pid  5128] <... openat resumed>)       = 3
[pid  5130] <... prctl resumed>)        = 0
[pid  5129] setpgid(0, 0 <unfinished ...>
[pid  5128] write(3, "1000", 4 <unfinished ...>
[pid  5122] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5130] setpgid(0, 0 <unfinished ...>
[pid  5129] <... setpgid resumed>)      = 0
[pid  5128] <... write resumed>)        = 4
[pid  5130] <... setpgid resumed>)      = 0
[pid  5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5128] close(3 <unfinished ...>
[pid  5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5128] <... close resumed>)        = 0
[pid  5122] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5128] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5122] close(6 <unfinished ...>
[pid  5129] <... openat resumed>)       = 3
[pid  5122] <... close resumed>)        = 0
./strace-static-x86_64: Process 5131 attached
[pid  5130] <... openat resumed>)       = 3
[pid  5129] write(3, "1000", 4 <unfinished ...>
[pid  5128] <... openat resumed>)       = 3
[pid  5122] close(5 <unfinished ...>
[pid  5131] set_robust_list(0x55555677f660, 24) = 0
[pid  5131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5131] setpgid(0, 0)               = 0
[pid  5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5130] write(3, "1000", 4 <unfinished ...>
[pid  5129] <... write resumed>)        = 4
[pid  5128] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5131
[pid  5130] <... write resumed>)        = 4
[pid  5129] close(3 <unfinished ...>
[pid  5122] <... close resumed>)        = 0
[pid  5128] <... openat resumed>)       = 4
[pid  5129] <... close resumed>)        = 0
[pid  5130] close(3 <unfinished ...>
[pid  5131] write(3, "1000", 4 <unfinished ...>
[pid  5130] <... close resumed>)        = 0
[pid  5129] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5128] sendfile(4, 3, [88] <unfinished ...>
[pid  5131] <... write resumed>)        = 4
[pid  5131] close(3)                    = 0
[pid  5131] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5130] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5129] <... openat resumed>)       = 3
[pid  5131] <... openat resumed>)       = 3
[pid  5130] <... openat resumed>)       = 3
[pid  5129] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5131] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5131] sendfile(4, 3, [88] <unfinished ...>
[pid  5130] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5129] sendfile(4, 3, [88] <unfinished ...>
[pid  5124] <... close resumed>)        = 0
[pid  5130] <... openat resumed>)       = 4
[pid  5130] sendfile(4, 3, [88] <unfinished ...>
[pid  5122] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5124] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5122] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5124] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5122] <... pwritev resumed>)      = 103
[pid  5122] exit_group(0)               = ?
[pid  5124] <... pwritev resumed>)      = 103
[pid  5124] exit_group(0)               = ?
[pid  5122] +++ exited with 0 +++
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5124] +++ exited with 0 +++
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5069] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5069] close(3)                    = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5132 attached
 <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5132] set_robust_list(0x55555677f660, 24) = 0
[   64.297445][ T5131] syz-executor166 (5131): drop_caches: 1
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5132
[pid  5132] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5078] <... ioctl resumed>)        = 0
[pid  5132] <... prctl resumed>)        = 0
[pid  5132] setpgid(0, 0)               = 0
[pid  5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5132] write(3, "1000", 4)         = 4
[pid  5132] close(3 <unfinished ...>
[pid  5078] close(3 <unfinished ...>
[pid  5132] <... close resumed>)        = 0
[pid  5078] <... close resumed>)        = 0
[pid  5132] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5132] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5132] sendfile(4, 3, [88] <unfinished ...>
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5133 attached
 <unfinished ...>
[pid  5133] set_robust_list(0x55555677f660, 24) = 0
[pid  5133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5133
[pid  5133] setpgid(0, 0)               = 0
[pid  5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5133] write(3, "1000", 4)         = 4
[pid  5133] close(3)                    = 0
[pid  5133] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5133] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   64.346830][ T5129] syz-executor166 (5129): drop_caches: 1
[   64.358150][ T5128] syz-executor166 (5128): drop_caches: 1
[   64.371182][ T5130] syz-executor166 (5130): drop_caches: 1
[pid  5133] sendfile(4, 3, [88] <unfinished ...>
[pid  5131] <... sendfile resumed> => [103], 15) = 15
[pid  5131] memfd_create("syzkaller", 0) = 5
[pid  5131] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   64.431172][ T5131] syz-executor166 (5131): drop_caches: 1
[   64.446515][ T5132] syz-executor166 (5132): drop_caches: 1
[pid  5131] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5130] <... sendfile resumed> => [103], 15) = 15
[pid  5130] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5129] <... sendfile resumed> => [103], 15) = 15
[pid  5128] <... sendfile resumed> => [103], 15) = 15
[   64.496736][ T5129] syz-executor166 (5129): drop_caches: 1
[   64.504247][ T5130] syz-executor166 (5130): drop_caches: 1
[   64.514460][ T5128] syz-executor166 (5128): drop_caches: 1
[pid  5130] <... memfd_create resumed>) = 5
[pid  5129] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5128] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5129] <... memfd_create resumed>) = 5
[pid  5131] <... write resumed>)        = 2097152
[pid  5130] <... mmap resumed>)         = 0x7f299346a000
[pid  5129] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5128] <... memfd_create resumed>) = 5
[pid  5129] <... mmap resumed>)         = 0x7f299346a000
[pid  5131] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5128] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5131] <... munmap resumed>)       = 0
[pid  5128] <... mmap resumed>)         = 0x7f299346a000
[pid  5132] <... sendfile resumed> => [103], 15) = 15
[pid  5131] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5131] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5131] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5131] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5131] close(6)                    = 0
[pid  5132] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5131] close(5 <unfinished ...>
[pid  5132] <... memfd_create resumed>) = 5
[pid  5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5129] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5132] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5131] <... close resumed>)        = 0
[   64.579722][ T5133] syz-executor166 (5133): drop_caches: 1
[   64.606061][ T5132] syz-executor166 (5132): drop_caches: 1
[pid  5130] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5128] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5132] <... write resumed>)        = 2097152
[pid  5129] <... write resumed>)        = 2097152
[pid  5133] <... sendfile resumed> => [103], 15) = 15
[pid  5132] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5131] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5129] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5130] <... write resumed>)        = 2097152
[pid  5130] munmap(0x7f299346a000, 138412032) = 0
[pid  5133] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5132] <... munmap resumed>)       = 0
[pid  5131] <... open resumed>)         = 5
[pid  5130] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5129] <... munmap resumed>)       = 0
[pid  5128] <... write resumed>)        = 2097152
[pid  5133] <... memfd_create resumed>) = 5
[pid  5132] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5131] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5130] <... openat resumed>)       = 6
[pid  5128] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5132] <... openat resumed>)       = 6
[pid  5132] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5133] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5132] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5130] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5132] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5133] <... mmap resumed>)         = 0x7f299346a000
[pid  5132] <... ioctl resumed>)        = 0
[pid  5130] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5130] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5131] <... pwritev resumed>)      = 103
[pid  5129] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5128] <... munmap resumed>)       = 0
[pid  5130] <... ioctl resumed>)        = 0
[pid  5131] exit_group(0 <unfinished ...>
[pid  5133] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5131] <... exit_group resumed>)   = ?
[pid  5128] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5129] <... openat resumed>)       = 6
[pid  5129] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5132] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5129] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5132] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5132] close(6 <unfinished ...>
[pid  5130] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5129] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5132] <... close resumed>)        = 0
[pid  5132] close(5 <unfinished ...>
[pid  5133] <... write resumed>)        = 2097152
[pid  5131] +++ exited with 0 +++
[pid  5130] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5128] <... openat resumed>)       = 6
[pid  5130] close(6 <unfinished ...>
[pid  5128] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5128] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5129] <... ioctl resumed>)        = 0
[pid  5133] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5128] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5128] <... ioctl resumed>)        = 0
[pid  5072] <... openat resumed>)       = 3
[pid  5129] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5129] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5129] close(6 <unfinished ...>
[pid  5072] <... ioctl resumed>)        = 0
[pid  5129] <... close resumed>)        = 0
[   64.701761][ T5133] syz-executor166 (5133): drop_caches: 1
[pid  5129] close(5 <unfinished ...>
[pid  5133] <... munmap resumed>)       = 0
[pid  5130] <... close resumed>)        = 0
[pid  5072] close(3 <unfinished ...>
[pid  5133] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5130] close(5 <unfinished ...>
[pid  5128] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5072] <... close resumed>)        = 0
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5128] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5132] <... close resumed>)        = 0
[pid  5132] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5132] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5134
[pid  5128] close(6./strace-static-x86_64: Process 5134 attached
 <unfinished ...>
[pid  5133] <... openat resumed>)       = 6
[pid  5129] <... close resumed>)        = 0
[pid  5128] <... close resumed>)        = 0
[pid  5133] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5128] close(5 <unfinished ...>
[pid  5133] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5129] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5129] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5133] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5133] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5133] close(6)                    = 0
[pid  5133] close(5 <unfinished ...>
[pid  5134] set_robust_list(0x55555677f660, 24) = 0
[pid  5134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5134] setpgid(0, 0)               = 0
[pid  5132] <... pwritev resumed>)      = 103
[pid  5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5132] exit_group(0 <unfinished ...>
[pid  5134] <... openat resumed>)       = 3
[pid  5132] <... exit_group resumed>)   = ?
[pid  5133] <... close resumed>)        = 0
[pid  5133] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5133] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5129] <... pwritev resumed>)      = 103
[pid  5129] exit_group(0)               = ?
[pid  5133] <... pwritev resumed>)      = 103
[pid  5133] exit_group(0)               = ?
[pid  5134] write(3, "1000", 4 <unfinished ...>
[pid  5133] +++ exited with 0 +++
[pid  5132] +++ exited with 0 +++
[pid  5129] +++ exited with 0 +++
[pid  5134] <... write resumed>)        = 4
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=10 /* 0.10 s */} ---
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5071] <... openat resumed>)       = 3
[pid  5069] <... openat resumed>)       = 3
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5078] <... ioctl resumed>)        = 0
[pid  5071] <... ioctl resumed>)        = 0
[pid  5069] <... ioctl resumed>)        = 0
[pid  5078] close(3 <unfinished ...>
[pid  5071] close(3 <unfinished ...>
[pid  5069] close(3 <unfinished ...>
[pid  5134] close(3 <unfinished ...>
[pid  5078] <... close resumed>)        = 0
[pid  5071] <... close resumed>)        = 0
[pid  5069] <... close resumed>)        = 0
[pid  5134] <... close resumed>)        = 0
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5136 attached
./strace-static-x86_64: Process 5135 attached
 <unfinished ...>
[pid  5134] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5136] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5135] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5134] <... openat resumed>)       = 3
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5135
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5136
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5137
./strace-static-x86_64: Process 5137 attached
[pid  5136] <... set_robust_list resumed>) = 0
[pid  5135] <... set_robust_list resumed>) = 0
[pid  5134] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5137] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5136] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5135] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5134] <... openat resumed>)       = 4
[pid  5137] <... set_robust_list resumed>) = 0
[pid  5136] <... prctl resumed>)        = 0
[pid  5135] <... prctl resumed>)        = 0
[pid  5134] sendfile(4, 3, [88] <unfinished ...>
[pid  5130] <... close resumed>)        = 0
[pid  5137] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5136] setpgid(0, 0 <unfinished ...>
[pid  5135] setpgid(0, 0 <unfinished ...>
[pid  5136] <... setpgid resumed>)      = 0
[pid  5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5130] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5137] <... prctl resumed>)        = 0
[pid  5136] <... openat resumed>)       = 3
[pid  5135] <... setpgid resumed>)      = 0
[pid  5136] write(3, "1000", 4 <unfinished ...>
[pid  5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5137] setpgid(0, 0 <unfinished ...>
[pid  5130] <... open resumed>)         = 5
[pid  5137] <... setpgid resumed>)      = 0
[pid  5136] <... write resumed>)        = 4
[pid  5135] <... openat resumed>)       = 3
[pid  5136] close(3)                    = 0
[pid  5136] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5136] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5136] <... openat resumed>)       = 4
[pid  5135] write(3, "1000", 4)         = 4
[pid  5137] <... openat resumed>)       = 3
[pid  5137] write(3, "1000", 4 <unfinished ...>
[pid  5136] sendfile(4, 3, [88] <unfinished ...>
[pid  5135] close(3 <unfinished ...>
[pid  5130] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5128] <... close resumed>)        = 0
[pid  5137] <... write resumed>)        = 4
[pid  5135] <... close resumed>)        = 0
[pid  5128] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5137] close(3 <unfinished ...>
[pid  5135] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5128] <... open resumed>)         = 5
[pid  5137] <... close resumed>)        = 0
[pid  5135] <... openat resumed>)       = 3
[pid  5128] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5135] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5137] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5135] <... openat resumed>)       = 4
[pid  5137] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5135] sendfile(4, 3, [88] <unfinished ...>
[pid  5137] <... openat resumed>)       = 4
[pid  5137] sendfile(4, 3, [88] <unfinished ...>
[pid  5130] <... pwritev resumed>)      = 103
[pid  5130] exit_group(0)               = ?
[pid  5130] +++ exited with 0 +++
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5076] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5128] <... pwritev resumed>)      = 103
[pid  5128] exit_group(0 <unfinished ...>
[pid  5076] close(3 <unfinished ...>
[pid  5128] <... exit_group resumed>)   = ?
[pid  5076] <... close resumed>)        = 0
[pid  5128] +++ exited with 0 +++
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555677f650) = 5139
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
./strace-static-x86_64: Process 5139 attached
[pid  5139] set_robust_list(0x55555677f660, 24) = 0
[pid  5139] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5070] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5070] close(3)                    = 0
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5140 attached
, child_tidptr=0x55555677f650) = 5140
[pid  5140] set_robust_list(0x55555677f660, 24) = 0
[pid  5140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5140] setpgid(0, 0)               = 0
[pid  5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5140] write(3, "1000", 4)         = 4
[pid  5140] close(3)                    = 0
[pid  5140] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5140] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   64.922496][ T5137] syz-executor166 (5137): drop_caches: 1
[pid  5140] sendfile(4, 3, [88] <unfinished ...>
[pid  5139] <... prctl resumed>)        = 0
[pid  5139] setpgid(0, 0)               = 0
[pid  5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5139] write(3, "1000", 4)         = 4
[pid  5139] close(3)                    = 0
[pid  5139] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5139] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5139] sendfile(4, 3, [88] <unfinished ...>
[pid  5137] <... sendfile resumed> => [103], 15) = 15
[   65.017178][ T5136] syz-executor166 (5136): drop_caches: 1
[   65.027533][ T5135] syz-executor166 (5135): drop_caches: 1
[   65.044966][ T5137] syz-executor166 (5137): drop_caches: 1
[   65.055435][ T5134] syz-executor166 (5134): drop_caches: 1
[pid  5137] memfd_create("syzkaller", 0) = 5
[pid  5137] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   65.084206][ T5140] syz-executor166 (5140): drop_caches: 1
[pid  5137] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5135] <... sendfile resumed> => [103], 15) = 15
[pid  5134] <... sendfile resumed> => [103], 15) = 15
[pid  5135] memfd_create("syzkaller", 0) = 5
[pid  5134] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5136] <... sendfile resumed> => [103], 15) = 15
[pid  5134] <... memfd_create resumed>) = 5
[pid  5140] <... sendfile resumed> => [103], 15) = 15
[pid  5136] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5135] <... mmap resumed>)         = 0x7f299346a000
[pid  5134] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5137] <... write resumed>)        = 2097152
[pid  5136] <... memfd_create resumed>) = 5
[pid  5140] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5137] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5136] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5135] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5140] <... memfd_create resumed>) = 5
[pid  5136] <... mmap resumed>)         = 0x7f299346a000
[pid  5140] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   65.136184][ T5136] syz-executor166 (5136): drop_caches: 1
[   65.147942][ T5139] syz-executor166 (5139): drop_caches: 1
[   65.153544][ T5134] syz-executor166 (5134): drop_caches: 1
[   65.161248][ T5135] syz-executor166 (5135): drop_caches: 1
[   65.179148][ T5140] syz-executor166 (5140): drop_caches: 1
[pid  5137] <... munmap resumed>)       = 0
[pid  5134] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5137] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5140] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5137] <... openat resumed>)       = 6
[pid  5136] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5135] <... write resumed>)        = 2097152
[pid  5137] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5135] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5137] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5137] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5140] <... write resumed>)        = 2097152
[pid  5135] <... munmap resumed>)       = 0
[pid  5134] <... write resumed>)        = 2097152
[pid  5137] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5135] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5137] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5135] <... openat resumed>)       = 6
[pid  5134] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5137] close(6 <unfinished ...>
[pid  5135] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5137] <... close resumed>)        = 0
[pid  5136] <... write resumed>)        = 2097152
[pid  5135] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5137] close(5 <unfinished ...>
[pid  5135] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5136] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5135] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5140] munmap(0x7f299346a000, 138412032) = 0
[pid  5136] <... munmap resumed>)       = 0
[pid  5140] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5135] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5140] <... openat resumed>)       = 6
[pid  5135] close(6 <unfinished ...>
[pid  5140] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5135] <... close resumed>)        = 0
[pid  5140] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5136] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5135] close(5 <unfinished ...>
[pid  5140] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5136] <... openat resumed>)       = 6
[pid  5136] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5140] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5140] close(6)                    = 0
[pid  5140] close(5)                    = 0
[pid  5137] <... close resumed>)        = 0
[pid  5134] <... munmap resumed>)       = 0
[pid  5136] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5139] <... sendfile resumed> => [103], 15) = 15
[pid  5134] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5136] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5134] <... openat resumed>)       = 6
[pid  5136] close(6 <unfinished ...>
[pid  5134] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5136] <... close resumed>)        = 0
[pid  5139] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5137] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5136] close(5 <unfinished ...>
[pid  5134] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5139] <... memfd_create resumed>) = 5
[pid  5139] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5134] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5137] <... open resumed>)         = 5
[pid  5137] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5140] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5140] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5134] <... ioctl resumed>)        = 0
[pid  5134] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5134] close(6)                    = 0
[pid  5135] <... close resumed>)        = 0
[pid  5135] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5140] <... pwritev resumed>)      = 103
[pid  5137] <... pwritev resumed>)      = 103
[pid  5134] close(5 <unfinished ...>
[pid  5140] exit_group(0 <unfinished ...>
[pid  5135] <... open resumed>)         = 5
[pid  5140] <... exit_group resumed>)   = ?
[   65.263274][ T5139] syz-executor166 (5139): drop_caches: 1
[pid  5140] +++ exited with 0 +++
[pid  5139] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5070] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5070] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5070] close(3)                    = 0
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5137] exit_group(0 <unfinished ...>
[pid  5135] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452./strace-static-x86_64: Process 5141 attached
 <unfinished ...>
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5141
[pid  5141] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5137] <... exit_group resumed>)   = ?
[pid  5141] <... set_robust_list resumed>) = 0
[pid  5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5141] setpgid(0, 0)               = 0
[pid  5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5141] write(3, "1000", 4)         = 4
[pid  5141] close(3)                    = 0
[pid  5141] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5137] +++ exited with 0 +++
[pid  5141] <... openat resumed>)       = 3
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=7 /* 0.07 s */} ---
[pid  5141] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5141] sendfile(4, 3, [88] <unfinished ...>
[pid  5136] <... close resumed>)        = 0
[pid  5135] <... pwritev resumed>)      = 103
[pid  5134] <... close resumed>)        = 0
[pid  5136] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5135] exit_group(0 <unfinished ...>
[pid  5134] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5139] <... write resumed>)        = 2097152
[pid  5135] <... exit_group resumed>)   = ?
[pid  5134] <... open resumed>)         = 5
[pid  5134] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5069] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5069] close(3)                    = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5142 attached
 <unfinished ...>
[pid  5142] set_robust_list(0x55555677f660, 24) = 0
[pid  5142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5142] setpgid(0, 0)               = 0
[pid  5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5142] write(3, "1000", 4 <unfinished ...>
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5142
[pid  5142] <... write resumed>)        = 4
[pid  5142] close(3 <unfinished ...>
[pid  5139] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5136] <... open resumed>)         = 5
[pid  5135] +++ exited with 0 +++
[pid  5134] <... pwritev resumed>)      = 103
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5142] <... close resumed>)        = 0
[pid  5142] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5134] exit_group(0 <unfinished ...>
[pid  5142] <... openat resumed>)       = 3
[pid  5136] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5134] <... exit_group resumed>)   = ?
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5142] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5142] <... openat resumed>)       = 4
[pid  5139] <... munmap resumed>)       = 0
[pid  5136] <... pwritev resumed>)      = 103
[pid  5134] +++ exited with 0 +++
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5142] sendfile(4, 3, [88] <unfinished ...>
[pid  5078] <... ioctl resumed>)        = 0
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} ---
[pid  5078] close(3 <unfinished ...>
[pid  5136] exit_group(0 <unfinished ...>
[pid  5078] <... close resumed>)        = 0
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5139] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5072] <... openat resumed>)       = 3
[pid  5136] <... exit_group resumed>)   = ?
[pid  5072] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5072] close(3)                    = 0
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5136] +++ exited with 0 +++
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5071] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5143
./strace-static-x86_64: Process 5144 attached
./strace-static-x86_64: Process 5143 attached
[pid  5139] <... openat resumed>)       = 6
[pid  5071] <... restart_syscall resumed>) = 0
[pid  5144] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5143] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5139] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5144
[pid  5144] <... set_robust_list resumed>) = 0
[pid  5143] <... set_robust_list resumed>) = 0
[pid  5139] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5144] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5139] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5144] <... prctl resumed>)        = 0
[pid  5143] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5139] <... ioctl resumed>)        = 0
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5144] setpgid(0, 0 <unfinished ...>
[pid  5143] <... prctl resumed>)        = 0
[pid  5071] <... openat resumed>)       = 3
[pid  5144] <... setpgid resumed>)      = 0
[pid  5143] setpgid(0, 0 <unfinished ...>
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5143] <... setpgid resumed>)      = 0
[pid  5071] <... ioctl resumed>)        = 0
[pid  5071] close(3 <unfinished ...>
[pid  5139] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5071] <... close resumed>)        = 0
[pid  5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5144] <... openat resumed>)       = 3
[pid  5139] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5144] write(3, "1000", 4 <unfinished ...>
[pid  5143] <... openat resumed>)       = 3
[pid  5139] close(6)                    = 0
[pid  5144] <... write resumed>)        = 4
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5145
[pid  5143] write(3, "1000", 4 <unfinished ...>
[pid  5144] close(3 <unfinished ...>
[pid  5143] <... write resumed>)        = 4
[pid  5139] close(5./strace-static-x86_64: Process 5145 attached
 <unfinished ...>
[pid  5143] close(3 <unfinished ...>
[pid  5139] <... close resumed>)        = 0
[pid  5144] <... close resumed>)        = 0
[pid  5145] set_robust_list(0x55555677f660, 24) = 0
[pid  5144] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5139] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5143] <... close resumed>)        = 0
[pid  5145] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5144] <... openat resumed>)       = 3
[pid  5143] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5139] <... open resumed>)         = 5
[pid  5145] <... prctl resumed>)        = 0
[pid  5143] <... openat resumed>)       = 3
[pid  5139] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5145] setpgid(0, 0)               = 0
[pid  5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5144] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5143] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5145] write(3, "1000", 4)         = 4
[pid  5143] <... openat resumed>)       = 4
[pid  5145] close(3 <unfinished ...>
[pid  5143] sendfile(4, 3, [88] <unfinished ...>
[pid  5145] <... close resumed>)        = 0
[pid  5145] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5145] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5145] sendfile(4, 3, [88] <unfinished ...>
[pid  5144] <... openat resumed>)       = 4
[pid  5144] sendfile(4, 3, [88] <unfinished ...>
[pid  5139] <... pwritev resumed>)      = 103
[pid  5139] exit_group(0)               = ?
[pid  5139] +++ exited with 0 +++
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} ---
[pid  5076] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5076] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5076] close(3)                    = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555677f650) = 5146
./strace-static-x86_64: Process 5146 attached
[pid  5146] set_robust_list(0x55555677f660, 24) = 0
[pid  5146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5146] setpgid(0, 0)               = 0
[pid  5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5146] write(3, "1000", 4)         = 4
[   65.394063][ T5141] syz-executor166 (5141): drop_caches: 1
[pid  5146] close(3)                    = 0
[pid  5146] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5146] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   65.533575][ T5142] syz-executor166 (5142): drop_caches: 1
[   65.540851][ T5145] syz-executor166 (5145): drop_caches: 1
[   65.544794][ T5144] syz-executor166 (5144): drop_caches: 1
[   65.558824][ T5143] syz-executor166 (5143): drop_caches: 1
[   65.561743][ T5146] syz-executor166 (5146): drop_caches: 1
[pid  5146] sendfile(4, 3, [88] <unfinished ...>
[pid  5141] <... sendfile resumed> => [103], 15) = 15
[   65.585731][ T5141] syz-executor166 (5141): drop_caches: 1
[pid  5141] memfd_create("syzkaller", 0) = 5
[pid  5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   65.674560][ T5142] syz-executor166 (5142): drop_caches: 1
[   65.696615][ T5144] syz-executor166 (5144): drop_caches: 1
[   65.705559][ T5143] syz-executor166 (5143): drop_caches: 1
[pid  5144] <... sendfile resumed> => [103], 15) = 15
[pid  5143] <... sendfile resumed> => [103], 15) = 15
[pid  5142] <... sendfile resumed> => [103], 15) = 15
[pid  5141] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5143] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5142] memfd_create("syzkaller", 0) = 5
[pid  5142] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5144] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5143] <... memfd_create resumed>) = 5
[pid  5144] <... memfd_create resumed>) = 5
[pid  5143] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5145] <... sendfile resumed> => [103], 15) = 15
[pid  5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5143] <... mmap resumed>)         = 0x7f299346a000
[pid  5146] <... sendfile resumed> => [103], 15) = 15
[   65.727884][ T5146] syz-executor166 (5146): drop_caches: 1
[   65.741986][ T5145] syz-executor166 (5145): drop_caches: 1
[pid  5145] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5144] <... mmap resumed>)         = 0x7f299346a000
[pid  5146] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5143] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5142] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5141] <... write resumed>)        = 2097152
[pid  5146] <... memfd_create resumed>) = 5
[pid  5146] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5141] munmap(0x7f299346a000, 138412032) = 0
[pid  5145] <... memfd_create resumed>) = 5
[pid  5145] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5141] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5145] <... mmap resumed>)         = 0x7f299346a000
[pid  5141] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5146] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5144] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5141] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5141] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5143] <... write resumed>)        = 2097152
[pid  5142] <... write resumed>)        = 2097152
[pid  5142] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5141] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5143] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5142] <... munmap resumed>)       = 0
[pid  5141] close(6)                    = 0
[pid  5143] <... munmap resumed>)       = 0
[pid  5141] close(5 <unfinished ...>
[pid  5142] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5146] <... write resumed>)        = 2097152
[pid  5145] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5143] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5142] <... openat resumed>)       = 6
[pid  5141] <... close resumed>)        = 0
[pid  5143] <... openat resumed>)       = 6
[pid  5142] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5144] <... write resumed>)        = 2097152
[pid  5143] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5142] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5143] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5142] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5146] munmap(0x7f299346a000, 138412032) = 0
[pid  5146] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5145] <... write resumed>)        = 2097152
[pid  5144] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5143] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5142] <... ioctl resumed>)        = 0
[pid  5141] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5146] <... openat resumed>)       = 6
[pid  5143] <... ioctl resumed>)        = 0
[pid  5146] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5146] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5143] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5142] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5143] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5146] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5143] close(6 <unfinished ...>
[pid  5142] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5146] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5145] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5144] <... munmap resumed>)       = 0
[pid  5143] <... close resumed>)        = 0
[pid  5142] close(6 <unfinished ...>
[pid  5141] <... open resumed>)         = 5
[pid  5146] close(6 <unfinished ...>
[pid  5145] <... munmap resumed>)       = 0
[pid  5144] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5143] close(5 <unfinished ...>
[pid  5142] <... close resumed>)        = 0
[pid  5141] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5146] <... close resumed>)        = 0
[pid  5144] <... openat resumed>)       = 6
[pid  5142] close(5 <unfinished ...>
[pid  5146] close(5 <unfinished ...>
[pid  5144] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5144] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5145] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6
[pid  5145] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5144] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5145] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5144] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5145] <... ioctl resumed>)        = 0
[pid  5144] close(6)                    = 0
[pid  5144] close(5 <unfinished ...>
[pid  5142] <... close resumed>)        = 0
[pid  5145] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5145] close(6)                    = 0
[pid  5145] close(5 <unfinished ...>
[pid  5141] <... pwritev resumed>)      = 103
[pid  5142] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5141] exit_group(0 <unfinished ...>
[pid  5142] <... open resumed>)         = 5
[pid  5141] <... exit_group resumed>)   = ?
[pid  5143] <... close resumed>)        = 0
[pid  5141] +++ exited with 0 +++
[pid  5142] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5143] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5070] <... openat resumed>)       = 3
[pid  5143] <... open resumed>)         = 5
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5143] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5070] <... ioctl resumed>)        = 0
[pid  5070] close(3)                    = 0
[pid  5142] <... pwritev resumed>)      = 103
[pid  5142] exit_group(0)               = ?
[pid  5142] +++ exited with 0 +++
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=10 /* 0.10 s */} ---
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5146] <... close resumed>)        = 0
[pid  5145] <... close resumed>)        = 0
[pid  5143] <... pwritev resumed>)      = 103
[pid  5069] <... openat resumed>)       = 3
[pid  5069] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5145] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000./strace-static-x86_64: Process 5147 attached
 <unfinished ...>
[pid  5146] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5144] <... close resumed>)        = 0
[pid  5143] exit_group(0 <unfinished ...>
[pid  5069] close(3 <unfinished ...>
[pid  5146] <... open resumed>)         = 5
[pid  5143] <... exit_group resumed>)   = ?
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5147
[pid  5147] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5146] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5069] <... close resumed>)        = 0
[pid  5147] <... set_robust_list resumed>) = 0
[pid  5145] <... open resumed>)         = 5
[pid  5144] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5147] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5145] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5144] <... open resumed>)         = 5
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5147] <... prctl resumed>)        = 0
[pid  5144] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5147] setpgid(0, 0)               = 0
[pid  5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5147] write(3, "1000", 4./strace-static-x86_64: Process 5148 attached
)         = 4
[pid  5148] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5147] close(3 <unfinished ...>
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5148
[pid  5147] <... close resumed>)        = 0
[pid  5143] +++ exited with 0 +++
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5148] <... set_robust_list resumed>) = 0
[pid  5147] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5148] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5147] <... openat resumed>)       = 3
[pid  5148] <... prctl resumed>)        = 0
[pid  5146] <... pwritev resumed>)      = 103
[pid  5145] <... pwritev resumed>)      = 103
[pid  5144] <... pwritev resumed>)      = 103
[pid  5148] setpgid(0, 0 <unfinished ...>
[pid  5146] exit_group(0 <unfinished ...>
[pid  5144] exit_group(0 <unfinished ...>
[pid  5148] <... setpgid resumed>)      = 0
[pid  5147] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5146] <... exit_group resumed>)   = ?
[pid  5144] <... exit_group resumed>)   = ?
[pid  5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5147] <... openat resumed>)       = 4
[pid  5145] exit_group(0)               = ?
[pid  5148] <... openat resumed>)       = 3
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5148] write(3, "1000", 4 <unfinished ...>
[pid  5147] sendfile(4, 3, [88] <unfinished ...>
[pid  5148] <... write resumed>)        = 4
[pid  5072] <... openat resumed>)       = 3
[pid  5146] +++ exited with 0 +++
[pid  5144] +++ exited with 0 +++
[pid  5148] close(3 <unfinished ...>
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5148] <... close resumed>)        = 0
[pid  5072] <... ioctl resumed>)        = 0
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5148] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5076] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5072] close(3 <unfinished ...>
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5145] +++ exited with 0 +++
[pid  5078] <... openat resumed>)       = 3
[pid  5076] <... restart_syscall resumed>) = 0
[pid  5072] <... close resumed>)        = 0
[pid  5148] <... openat resumed>)       = 3
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5148] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5071] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5148] <... openat resumed>)       = 4
[pid  5071] <... restart_syscall resumed>) = 0
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5071] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5071] close(3)                    = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5148] sendfile(4, 3, [88] <unfinished ...>
[pid  5078] <... ioctl resumed>)        = 0
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5150
./strace-static-x86_64: Process 5149 attached
./strace-static-x86_64: Process 5150 attached
[pid  5149] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5078] close(3 <unfinished ...>
[pid  5076] <... openat resumed>)       = 3
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5149
[pid  5149] <... set_robust_list resumed>) = 0
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5149] setpgid(0, 0)               = 0
[pid  5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5076] <... ioctl resumed>)        = 0
[pid  5149] write(3, "1000", 4)         = 4
[pid  5149] close(3)                    = 0
[pid  5149] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5149] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5149] sendfile(4, 3, [88] <unfinished ...>
[pid  5078] <... close resumed>)        = 0
[pid  5150] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5076] close(3)                    = 0
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5150] <... set_robust_list resumed>) = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5151 attached
./strace-static-x86_64: Process 5152 attached
 <unfinished ...>
[pid  5150] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5151
[pid  5150] <... prctl resumed>)        = 0
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5152
[pid  5152] set_robust_list(0x55555677f660, 24) = 0
[pid  5152] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5151] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5150] setpgid(0, 0 <unfinished ...>
[pid  5152] <... prctl resumed>)        = 0
[pid  5151] <... set_robust_list resumed>) = 0
[pid  5150] <... setpgid resumed>)      = 0
[pid  5152] setpgid(0, 0 <unfinished ...>
[pid  5151] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5152] <... setpgid resumed>)      = 0
[pid  5151] <... prctl resumed>)        = 0
[pid  5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5151] setpgid(0, 0 <unfinished ...>
[pid  5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5152] <... openat resumed>)       = 3
[pid  5151] <... setpgid resumed>)      = 0
[pid  5152] write(3, "1000", 4 <unfinished ...>
[pid  5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5152] <... write resumed>)        = 4
[pid  5151] <... openat resumed>)       = 3
[pid  5150] <... openat resumed>)       = 3
[pid  5152] close(3 <unfinished ...>
[pid  5151] write(3, "1000", 4 <unfinished ...>
[pid  5150] write(3, "1000", 4 <unfinished ...>
[pid  5152] <... close resumed>)        = 0
[pid  5151] <... write resumed>)        = 4
[pid  5152] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5151] close(3 <unfinished ...>
[pid  5152] <... openat resumed>)       = 3
[pid  5151] <... close resumed>)        = 0
[pid  5152] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5151] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5152] <... openat resumed>)       = 4
[pid  5151] <... openat resumed>)       = 3
[pid  5151] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5151] sendfile(4, 3, [88] <unfinished ...>
[pid  5152] sendfile(4, 3, [88] <unfinished ...>
[pid  5150] <... write resumed>)        = 4
[pid  5150] close(3)                    = 0
[pid  5150] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5150] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   66.110996][ T5147] syz-executor166 (5147): drop_caches: 1
[   66.127466][ T5149] syz-executor166 (5149): drop_caches: 1
[   66.129922][ T5148] syz-executor166 (5148): drop_caches: 1
[   66.157055][ T5151] syz-executor166 (5151): drop_caches: 1
[pid  5150] sendfile(4, 3, [88] <unfinished ...>
[pid  5148] <... sendfile resumed> => [103], 15) = 15
[pid  5147] <... sendfile resumed> => [103], 15) = 15
[pid  5148] memfd_create("syzkaller", 0) = 5
[pid  5148] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   66.263242][ T5152] syz-executor166 (5152): drop_caches: 1
[   66.282195][ T5148] syz-executor166 (5148): drop_caches: 1
[   66.290285][ T5147] syz-executor166 (5147): drop_caches: 1
[   66.296746][ T5150] syz-executor166 (5150): drop_caches: 1
[   66.298715][ T5149] syz-executor166 (5149): drop_caches: 1
[pid  5147] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5149] <... sendfile resumed> => [103], 15) = 15
[pid  5148] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5147] <... memfd_create resumed>) = 5
[pid  5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5149] memfd_create("syzkaller", 0) = 5
[pid  5149] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5149] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5150] <... sendfile resumed> => [103], 15) = 15
[pid  5148] <... write resumed>)        = 2097152
[pid  5147] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5150] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5148] munmap(0x7f299346a000, 138412032) = 0
[   66.354876][ T5150] syz-executor166 (5150): drop_caches: 1
[   66.379005][ T5151] syz-executor166 (5151): drop_caches: 1
[pid  5151] <... sendfile resumed> => [103], 15) = 15
[pid  5150] <... memfd_create resumed>) = 5
[pid  5148] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5152] <... sendfile resumed> => [103], 15) = 15
[pid  5151] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5148] <... openat resumed>)       = 6
[pid  5148] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5151] <... memfd_create resumed>) = 5
[pid  5148] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5151] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5148] <... ioctl resumed>)        = 0
[pid  5150] <... mmap resumed>)         = 0x7f299346a000
[pid  5152] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5147] <... write resumed>)        = 2097152
[pid  5148] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5152] <... memfd_create resumed>) = 5
[pid  5148] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5147] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5148] close(6)                    = 0
[pid  5148] close(5 <unfinished ...>
[pid  5149] <... write resumed>)        = 2097152
[pid  5151] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5147] <... munmap resumed>)       = 0
[pid  5149] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5152] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5149] <... munmap resumed>)       = 0
[   66.403215][ T5152] syz-executor166 (5152): drop_caches: 1
[pid  5147] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5152] <... mmap resumed>)         = 0x7f299346a000
[pid  5150] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5149] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5148] <... close resumed>)        = 0
[pid  5147] <... openat resumed>)       = 6
[pid  5147] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5149] <... openat resumed>)       = 6
[pid  5147] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5151] <... write resumed>)        = 2097152
[pid  5149] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5147] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5149] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5149] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5147] <... ioctl resumed>)        = 0
[pid  5149] <... ioctl resumed>)        = 0
[pid  5148] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5151] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5148] <... open resumed>)         = 5
[pid  5149] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5148] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5147] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5149] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5147] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5149] close(6 <unfinished ...>
[pid  5147] close(6 <unfinished ...>
[pid  5149] <... close resumed>)        = 0
[pid  5147] <... close resumed>)        = 0
[pid  5149] close(5 <unfinished ...>
[pid  5147] close(5 <unfinished ...>
[pid  5151] <... munmap resumed>)       = 0
[pid  5148] <... pwritev resumed>)      = 103
[pid  5147] <... close resumed>)        = 0
[pid  5148] exit_group(0 <unfinished ...>
[pid  5151] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6
[pid  5151] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5148] <... exit_group resumed>)   = ?
[pid  5151] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5151] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5151] close(6)                    = 0
[pid  5148] +++ exited with 0 +++
[pid  5151] close(5 <unfinished ...>
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5069] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5152] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5151] <... close resumed>)        = 0
[pid  5147] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5069] <... restart_syscall resumed>) = 0
[pid  5149] <... close resumed>)        = 0
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5069] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5150] <... write resumed>)        = 2097152
[pid  5149] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5147] <... open resumed>)         = 5
[pid  5069] close(3 <unfinished ...>
[pid  5150] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5149] <... open resumed>)         = 5
[pid  5150] <... munmap resumed>)       = 0
[pid  5149] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5147] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5069] <... close resumed>)        = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5150] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 5153 attached
) = 6
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5153
[pid  5153] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5150] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5153] <... set_robust_list resumed>) = 0
[pid  5153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5153] setpgid(0, 0 <unfinished ...>
[pid  5150] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5153] <... setpgid resumed>)      = 0
[pid  5150] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5149] <... pwritev resumed>)      = 103
[pid  5147] <... pwritev resumed>)      = 103
[pid  5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5150] <... ioctl resumed>)        = 0
[pid  5149] exit_group(0)               = ?
[pid  5147] exit_group(0 <unfinished ...>
[pid  5149] +++ exited with 0 +++
[pid  5147] <... exit_group resumed>)   = ?
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
[pid  5072] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5151] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5153] <... openat resumed>)       = 3
[pid  5147] +++ exited with 0 +++
[pid  5072] <... restart_syscall resumed>) = 0
[pid  5150] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
[pid  5151] <... open resumed>)         = 5
[pid  5150] close(6)                    = 0
[pid  5151] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5150] close(5 <unfinished ...>
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5153] write(3, "1000", 4 <unfinished ...>
[pid  5152] <... write resumed>)        = 2097152
[pid  5072] <... openat resumed>)       = 3
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5070] <... openat resumed>)       = 3
[pid  5072] <... ioctl resumed>)        = 0
[pid  5153] <... write resumed>)        = 4
[pid  5072] close(3 <unfinished ...>
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5072] <... close resumed>)        = 0
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5070] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 5154 attached
[pid  5153] close(3 <unfinished ...>
[pid  5070] close(3 <unfinished ...>
[pid  5153] <... close resumed>)        = 0
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5154
[pid  5070] <... close resumed>)        = 0
[pid  5154] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5150] <... close resumed>)        = 0
./strace-static-x86_64: Process 5155 attached
[pid  5154] <... set_robust_list resumed>) = 0
[pid  5153] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5152] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5151] <... pwritev resumed>)      = 103
[pid  5154] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5151] exit_group(0 <unfinished ...>
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5155
[pid  5153] <... openat resumed>)       = 3
[pid  5151] <... exit_group resumed>)   = ?
[pid  5154] <... prctl resumed>)        = 0
[pid  5153] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5154] setpgid(0, 0)               = 0
[pid  5153] <... openat resumed>)       = 4
[pid  5151] +++ exited with 0 +++
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5153] sendfile(4, 3, [88] <unfinished ...>
[pid  5078] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5155] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5150] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5078] <... restart_syscall resumed>) = 0
[pid  5155] <... set_robust_list resumed>) = 0
[pid  5150] <... open resumed>)         = 5
[pid  5155] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5150] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5155] <... prctl resumed>)        = 0
[pid  5152] <... munmap resumed>)       = 0
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5155] setpgid(0, 0 <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5155] <... setpgid resumed>)      = 0
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5078] <... ioctl resumed>)        = 0
[pid  5155] <... openat resumed>)       = 3
[pid  5150] <... pwritev resumed>)      = 103
[pid  5078] close(3 <unfinished ...>
[pid  5155] write(3, "1000", 4 <unfinished ...>
[pid  5154] <... openat resumed>)       = 3
[pid  5152] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5150] exit_group(0 <unfinished ...>
[pid  5078] <... close resumed>)        = 0
[pid  5154] write(3, "1000", 4)         = 4
[pid  5154] close(3)                    = 0
[pid  5150] <... exit_group resumed>)   = ?
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5154] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5150] +++ exited with 0 +++
[pid  5154] <... openat resumed>)       = 3
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5156
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5154] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5154] sendfile(4, 3, [88] <unfinished ...>
[pid  5071] <... openat resumed>)       = 3
[pid  5071] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5071] close(3)                    = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555677f650) = 5157
./strace-static-x86_64: Process 5157 attached
[pid  5155] <... write resumed>)        = 4
[pid  5152] <... openat resumed>)       = 6
./strace-static-x86_64: Process 5156 attached
[pid  5157] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5155] close(3 <unfinished ...>
[pid  5152] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5157] <... set_robust_list resumed>) = 0
[pid  5156] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5155] <... close resumed>)        = 0
[pid  5152] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5156] <... set_robust_list resumed>) = 0
[pid  5157] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5156] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5155] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5152] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5155] <... openat resumed>)       = 3
[pid  5152] <... ioctl resumed>)        = 0
[pid  5155] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5156] <... prctl resumed>)        = 0
[pid  5155] <... openat resumed>)       = 4
[pid  5156] setpgid(0, 0 <unfinished ...>
[pid  5155] sendfile(4, 3, [88] <unfinished ...>
[pid  5156] <... setpgid resumed>)      = 0
[pid  5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5152] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5152] close(6)                    = 0
[pid  5156] <... openat resumed>)       = 3
[pid  5152] close(5)                    = 0
[pid  5152] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5152] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5156] write(3, "1000", 4 <unfinished ...>
[pid  5152] <... pwritev resumed>)      = 103
[pid  5152] exit_group(0)               = ?
[pid  5157] <... prctl resumed>)        = 0
[pid  5156] <... write resumed>)        = 4
[pid  5152] +++ exited with 0 +++
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5156] close(3 <unfinished ...>
[pid  5157] setpgid(0, 0 <unfinished ...>
[pid  5156] <... close resumed>)        = 0
[pid  5156] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5157] <... setpgid resumed>)      = 0
[pid  5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5157] <... openat resumed>)       = 3
[pid  5157] write(3, "1000", 4 <unfinished ...>
[pid  5076] <... openat resumed>)       = 3
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5157] <... write resumed>)        = 4
[pid  5157] close(3 <unfinished ...>
[pid  5076] <... ioctl resumed>)        = 0
[pid  5157] <... close resumed>)        = 0
[pid  5156] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5076] close(3 <unfinished ...>
[pid  5157] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5156] <... openat resumed>)       = 4
[pid  5076] <... close resumed>)        = 0
[pid  5157] <... openat resumed>)       = 3
[pid  5156] sendfile(4, 3, [88] <unfinished ...>
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5157] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5158
./strace-static-x86_64: Process 5158 attached
[pid  5157] sendfile(4, 3, [88] <unfinished ...>
[pid  5158] set_robust_list(0x55555677f660, 24) = 0
[pid  5158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5158] setpgid(0, 0)               = 0
[pid  5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5158] write(3, "1000", 4)         = 4
[pid  5158] close(3)                    = 0
[pid  5158] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5158] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   66.676590][ T5155] syz-executor166 (5155): drop_caches: 1
[   66.713377][ T5153] syz-executor166 (5153): drop_caches: 1
[pid  5158] sendfile(4, 3, [88] <unfinished ...>
[pid  5155] <... sendfile resumed> => [103], 15) = 15
[pid  5155] memfd_create("syzkaller", 0) = 5
[pid  5155] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   66.755560][ T5156] syz-executor166 (5156): drop_caches: 1
[   66.770331][ T5158] syz-executor166 (5158): drop_caches: 1
[   66.772501][ T5154] syz-executor166 (5154): drop_caches: 1
[   66.784724][ T5155] syz-executor166 (5155): drop_caches: 1
[   66.786638][ T5157] syz-executor166 (5157): drop_caches: 1
[pid  5155] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152
[   66.837594][ T5153] syz-executor166 (5153): drop_caches: 1
[pid  5153] <... sendfile resumed> => [103], 15) = 15
[pid  5158] <... sendfile resumed> => [103], 15) = 15
[pid  5155] munmap(0x7f299346a000, 138412032) = 0
[pid  5153] memfd_create("syzkaller", 0) = 5
[pid  5158] memfd_create("syzkaller", 0) = 5
[pid  5155] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5157] <... sendfile resumed> => [103], 15) = 15
[pid  5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5158] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5155] <... openat resumed>)       = 6
[pid  5154] <... sendfile resumed> => [103], 15) = 15
[pid  5158] <... mmap resumed>)         = 0x7f299346a000
[pid  5155] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5153] <... mmap resumed>)         = 0x7f299346a000
[pid  5157] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5156] <... sendfile resumed> => [103], 15) = 15
[pid  5155] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5154] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5155] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5157] <... memfd_create resumed>) = 5
[pid  5155] <... ioctl resumed>)        = 0
[pid  5154] <... memfd_create resumed>) = 5
[pid  5156] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5154] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5155] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5157] <... mmap resumed>)         = 0x7f299346a000
[pid  5155] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5154] <... mmap resumed>)         = 0x7f299346a000
[pid  5155] close(6)                    = 0
[pid  5155] close(5 <unfinished ...>
[pid  5156] <... memfd_create resumed>) = 5
[pid  5158] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5156] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5153] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5156] <... mmap resumed>)         = 0x7f299346a000
[pid  5153] <... write resumed>)        = 2097152
[   66.878939][ T5158] syz-executor166 (5158): drop_caches: 1
[   66.884875][ T5154] syz-executor166 (5154): drop_caches: 1
[   66.893888][ T5157] syz-executor166 (5157): drop_caches: 1
[   66.899968][ T5156] syz-executor166 (5156): drop_caches: 1
[pid  5157] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5155] <... close resumed>)        = 0
[pid  5155] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5153] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5158] <... write resumed>)        = 2097152
[pid  5156] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5155] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5153] <... munmap resumed>)       = 0
[pid  5154] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5153] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5157] <... write resumed>)        = 2097152
[pid  5153] <... openat resumed>)       = 6
[pid  5153] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5153] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5157] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5155] <... pwritev resumed>)      = 103
[pid  5155] exit_group(0)               = ?
[pid  5155] +++ exited with 0 +++
[pid  5153] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5153] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5158] munmap(0x7f299346a000, 138412032) = 0
[pid  5153] close(6 <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5153] <... close resumed>)        = 0
[pid  5153] close(5 <unfinished ...>
[pid  5158] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5158] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5157] <... munmap resumed>)       = 0
[pid  5156] <... write resumed>)        = 2097152
[pid  5154] <... write resumed>)        = 2097152
[pid  5070] <... openat resumed>)       = 3
[pid  5158] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5157] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5158] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5156] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5154] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5153] <... close resumed>)        = 0
[pid  5157] <... openat resumed>)       = 6
[pid  5153] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5070] <... ioctl resumed>)        = 0
[pid  5158] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5157] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5156] <... munmap resumed>)       = 0
[pid  5153] <... open resumed>)         = 5
[pid  5070] close(3 <unfinished ...>
[pid  5158] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5157] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5156] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5153] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5070] <... close resumed>)        = 0
[pid  5158] close(6 <unfinished ...>
[pid  5157] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5159 attached
 <unfinished ...>
[pid  5158] <... close resumed>)        = 0
[pid  5157] <... ioctl resumed>)        = 0
[pid  5156] <... openat resumed>)       = 6
[pid  5154] <... munmap resumed>)       = 0
[pid  5159] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5158] close(5 <unfinished ...>
[pid  5154] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5156] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5154] <... openat resumed>)       = 6
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5159
[pid  5156] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5154] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5159] <... set_robust_list resumed>) = 0
[pid  5158] <... close resumed>)        = 0
[pid  5157] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5154] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5159] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5157] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5157] close(6)                    = 0
[pid  5157] close(5 <unfinished ...>
[pid  5159] <... prctl resumed>)        = 0
[pid  5154] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5159] setpgid(0, 0 <unfinished ...>
[pid  5154] <... ioctl resumed>)        = 0
[pid  5159] <... setpgid resumed>)      = 0
[pid  5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5153] <... pwritev resumed>)      = 103
[pid  5159] <... openat resumed>)       = 3
[pid  5156] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5153] exit_group(0 <unfinished ...>
[pid  5159] write(3, "1000", 4)         = 4
[pid  5154] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5156] <... ioctl resumed>)        = 0
[pid  5154] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5153] <... exit_group resumed>)   = ?
[pid  5159] close(3 <unfinished ...>
[pid  5158] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5154] close(6 <unfinished ...>
[pid  5153] +++ exited with 0 +++
[pid  5154] <... close resumed>)        = 0
[pid  5159] <... close resumed>)        = 0
[pid  5158] <... open resumed>)         = 5
[pid  5154] close(5 <unfinished ...>
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5156] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5069] <... ioctl resumed>)        = 0
[pid  5156] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5069] close(3 <unfinished ...>
[pid  5156] close(6 <unfinished ...>
[pid  5069] <... close resumed>)        = 0
[pid  5156] <... close resumed>)        = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5160 attached
 <unfinished ...>
[pid  5156] close(5 <unfinished ...>
[pid  5160] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5156] <... close resumed>)        = 0
[pid  5154] <... close resumed>)        = 0
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5160
[pid  5160] <... set_robust_list resumed>) = 0
[pid  5160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5160] setpgid(0, 0)               = 0
[pid  5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5160] write(3, "1000", 4)         = 4
[pid  5160] close(3)                    = 0
[pid  5160] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5160] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5160] sendfile(4, 3, [88] <unfinished ...>
[pid  5158] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5154] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5159] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5154] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5157] <... close resumed>)        = 0
[pid  5157] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5159] <... openat resumed>)       = 3
[pid  5157] <... open resumed>)         = 5
[pid  5159] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5157] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5159] <... openat resumed>)       = 4
[pid  5156] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5159] sendfile(4, 3, [88] <unfinished ...>
[pid  5156] <... open resumed>)         = 5
[pid  5156] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5158] <... pwritev resumed>)      = 103
[pid  5157] <... pwritev resumed>)      = 103
[pid  5156] <... pwritev resumed>)      = 103
[pid  5154] <... pwritev resumed>)      = 103
[pid  5156] exit_group(0 <unfinished ...>
[pid  5154] exit_group(0)               = ?
[pid  5156] <... exit_group resumed>)   = ?
[pid  5157] exit_group(0 <unfinished ...>
[pid  5156] +++ exited with 0 +++
[pid  5158] exit_group(0 <unfinished ...>
[pid  5157] <... exit_group resumed>)   = ?
[pid  5158] <... exit_group resumed>)   = ?
[pid  5157] +++ exited with 0 +++
[pid  5154] +++ exited with 0 +++
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5158] +++ exited with 0 +++
[pid  5078] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5078] <... restart_syscall resumed>) = 0
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5071] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5071] <... restart_syscall resumed>) = 0
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5076] <... openat resumed>)       = 3
[pid  5078] <... openat resumed>)       = 3
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5076] <... ioctl resumed>)        = 0
[pid  5078] <... ioctl resumed>)        = 0
[pid  5076] close(3 <unfinished ...>
[pid  5078] close(3 <unfinished ...>
[pid  5076] <... close resumed>)        = 0
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5078] <... close resumed>)        = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5072] <... openat resumed>)       = 3
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5161
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5162
[pid  5072] <... ioctl resumed>)        = 0
[pid  5072] close(3)                    = 0
[pid  5071] <... openat resumed>)       = 3
./strace-static-x86_64: Process 5162 attached
./strace-static-x86_64: Process 5161 attached
[pid  5161] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5161] <... set_robust_list resumed>) = 0
[pid  5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5162] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5161] setpgid(0, 0 <unfinished ...>
[pid  5162] <... set_robust_list resumed>) = 0
[pid  5161] <... setpgid resumed>)      = 0
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5163
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5071] <... ioctl resumed>)        = 0
[pid  5161] <... openat resumed>)       = 3
[pid  5071] close(3)                    = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5163 attached
 <unfinished ...>
[pid  5162] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5161] write(3, "1000", 4 <unfinished ...>
[pid  5163] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5162] <... prctl resumed>)        = 0
[pid  5161] <... write resumed>)        = 4
[pid  5162] setpgid(0, 0 <unfinished ...>
[pid  5161] close(3./strace-static-x86_64: Process 5164 attached
 <unfinished ...>
[pid  5162] <... setpgid resumed>)      = 0
[pid  5161] <... close resumed>)        = 0
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5164
[pid  5164] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5161] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5164] <... set_robust_list resumed>) = 0
[pid  5162] <... openat resumed>)       = 3
[pid  5161] <... openat resumed>)       = 3
[pid  5162] write(3, "1000", 4 <unfinished ...>
[pid  5161] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5164] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5162] <... write resumed>)        = 4
[pid  5161] <... openat resumed>)       = 4
[pid  5164] <... prctl resumed>)        = 0
[pid  5162] close(3 <unfinished ...>
[pid  5161] sendfile(4, 3, [88] <unfinished ...>
[pid  5163] <... set_robust_list resumed>) = 0
[pid  5162] <... close resumed>)        = 0
[pid  5163] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5162] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5163] <... prctl resumed>)        = 0
[pid  5162] <... openat resumed>)       = 3
[pid  5163] setpgid(0, 0 <unfinished ...>
[pid  5162] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5164] setpgid(0, 0 <unfinished ...>
[pid  5163] <... setpgid resumed>)      = 0
[pid  5162] <... openat resumed>)       = 4
[pid  5164] <... setpgid resumed>)      = 0
[pid  5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5162] sendfile(4, 3, [88] <unfinished ...>
[pid  5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5163] <... openat resumed>)       = 3
[pid  5163] write(3, "1000", 4)         = 4
[pid  5164] <... openat resumed>)       = 3
[pid  5163] close(3 <unfinished ...>
[pid  5164] write(3, "1000", 4)         = 4
[pid  5164] close(3 <unfinished ...>
[pid  5163] <... close resumed>)        = 0
[pid  5164] <... close resumed>)        = 0
[pid  5163] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5164] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5163] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5163] sendfile(4, 3, [88] <unfinished ...>
[pid  5164] <... openat resumed>)       = 3
[pid  5164] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   67.216828][ T5160] syz-executor166 (5160): drop_caches: 1
[   67.235019][ T5159] syz-executor166 (5159): drop_caches: 1
[   67.296869][ T5162] syz-executor166 (5162): drop_caches: 1
[   67.306799][ T5164] syz-executor166 (5164): drop_caches: 1
[   67.316143][ T5163] syz-executor166 (5163): drop_caches: 1
[   67.320608][ T5161] syz-executor166 (5161): drop_caches: 1
[pid  5164] sendfile(4, 3, [88] <unfinished ...>
[pid  5160] <... sendfile resumed> => [103], 15) = 15
[pid  5160] memfd_create("syzkaller", 0) = 5
[pid  5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   67.380950][ T5160] syz-executor166 (5160): drop_caches: 1
[   67.394921][ T5163] syz-executor166 (5163): drop_caches: 1
[   67.403968][ T5159] syz-executor166 (5159): drop_caches: 1
[   67.415769][ T5164] syz-executor166 (5164): drop_caches: 1
[   67.424612][ T5161] syz-executor166 (5161): drop_caches: 1
[pid  5159] <... sendfile resumed> => [103], 15) = 15
[pid  5159] memfd_create("syzkaller", 0) = 5
[pid  5159] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5164] <... sendfile resumed> => [103], 15) = 15
[pid  5163] <... sendfile resumed> => [103], 15) = 15
[pid  5162] <... sendfile resumed> => [103], 15) = 15
[pid  5161] <... sendfile resumed> => [103], 15) = 15
[pid  5163] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5164] memfd_create("syzkaller", 0) = 5
[pid  5162] memfd_create("syzkaller", 0) = 5
[pid  5162] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5161] memfd_create("syzkaller", 0) = 5
[pid  5163] <... memfd_create resumed>) = 5
[pid  5164] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5161] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5159] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5164] <... mmap resumed>)         = 0x7f299346a000
[pid  5163] <... mmap resumed>)         = 0x7f299346a000
[   67.427486][ T5162] syz-executor166 (5162): drop_caches: 1
[pid  5160] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152
[pid  5159] <... write resumed>)        = 2097152
[pid  5159] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5164] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5161] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5159] <... munmap resumed>)       = 0
[pid  5162] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5159] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5163] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5160] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5159] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5159] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5159] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5159] close(6 <unfinished ...>
[pid  5162] <... write resumed>)        = 2097152
[pid  5159] <... close resumed>)        = 0
[pid  5159] close(5 <unfinished ...>
[pid  5161] <... write resumed>)        = 2097152
[pid  5164] <... write resumed>)        = 2097152
[pid  5164] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5160] <... munmap resumed>)       = 0
[pid  5163] <... write resumed>)        = 2097152
[pid  5162] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5161] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5160] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid  5159] <... close resumed>)        = 0
[pid  5160] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5160] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5159] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5164] <... munmap resumed>)       = 0
[pid  5163] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5162] <... munmap resumed>)       = 0
[pid  5161] <... munmap resumed>)       = 0
[pid  5159] <... open resumed>)         = 5
[pid  5164] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5163] <... munmap resumed>)       = 0
[pid  5160] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5159] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5160] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5160] close(6 <unfinished ...>
[pid  5164] <... openat resumed>)       = 6
[pid  5162] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5161] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5160] <... close resumed>)        = 0
[pid  5162] <... openat resumed>)       = 6
[pid  5161] <... openat resumed>)       = 6
[pid  5161] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5160] close(5 <unfinished ...>
[pid  5162] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5161] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5162] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5161] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5164] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5162] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5161] <... ioctl resumed>)        = 0
[pid  5164] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5162] <... ioctl resumed>)        = 0
[pid  5164] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5163] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5163] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5161] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5163] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5162] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5161] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5164] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5163] <... ioctl resumed>)        = 0
[pid  5162] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5161] close(6 <unfinished ...>
[pid  5164] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5162] close(6 <unfinished ...>
[pid  5161] <... close resumed>)        = 0
[pid  5164] close(6 <unfinished ...>
[pid  5162] <... close resumed>)        = 0
[pid  5161] close(5 <unfinished ...>
[pid  5164] <... close resumed>)        = 0
[pid  5162] close(5 <unfinished ...>
[pid  5161] <... close resumed>)        = 0
[pid  5160] <... close resumed>)        = 0
[pid  5164] close(5 <unfinished ...>
[pid  5162] <... close resumed>)        = 0
[pid  5164] <... close resumed>)        = 0
[pid  5163] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5161] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5160] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5159] <... pwritev resumed>)      = 103
[pid  5163] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5159] exit_group(0 <unfinished ...>
[pid  5163] close(6 <unfinished ...>
[pid  5159] <... exit_group resumed>)   = ?
[pid  5163] <... close resumed>)        = 0
[pid  5159] +++ exited with 0 +++
[pid  5163] close(5 <unfinished ...>
[pid  5162] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5162] <... open resumed>)         = 5
[pid  5162] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5161] <... open resumed>)         = 5
[pid  5160] <... open resumed>)         = 5
[pid  5160] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5161] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5070] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5162] <... pwritev resumed>)      = 103
[pid  5160] <... pwritev resumed>)      = 103
[pid  5070] close(3 <unfinished ...>
[pid  5162] exit_group(0 <unfinished ...>
[pid  5160] exit_group(0 <unfinished ...>
[pid  5070] <... close resumed>)        = 0
[pid  5162] <... exit_group resumed>)   = ?
[pid  5160] <... exit_group resumed>)   = ?
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5162] +++ exited with 0 +++
[pid  5160] +++ exited with 0 +++
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5165
[pid  5161] <... pwritev resumed>)      = 103
[pid  5161] exit_group(0)               = ?
./strace-static-x86_64: Process 5165 attached
[pid  5161] +++ exited with 0 +++
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5165] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5078] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5165] <... set_robust_list resumed>) = 0
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} ---
[pid  5078] <... restart_syscall resumed>) = 0
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5165] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5069] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5069] <... restart_syscall resumed>) = 0
[pid  5078] <... openat resumed>)       = 3
[pid  5076] <... openat resumed>)       = 3
[pid  5076] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5076] close(3)                    = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5078] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5078] close(3 <unfinished ...>
[pid  5069] <... openat resumed>)       = 3
[pid  5078] <... close resumed>)        = 0
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5166 attached
 <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5166
[pid  5069] <... ioctl resumed>)        = 0
[pid  5166] set_robust_list(0x55555677f660, 24) = 0
[pid  5166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5166] setpgid(0, 0)               = 0
[pid  5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5069] close(3 <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5167
[pid  5069] <... close resumed>)        = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5166] write(3, "1000", 4./strace-static-x86_64: Process 5167 attached
)         = 4
[pid  5166] close(3)                    = 0
[pid  5166] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5167] set_robust_list(0x55555677f660, 24) = 0
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5168
[pid  5167] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5166] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5167] <... prctl resumed>)        = 0
[pid  5165] <... prctl resumed>)        = 0
./strace-static-x86_64: Process 5168 attached
[pid  5167] setpgid(0, 0 <unfinished ...>
[pid  5168] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5166] sendfile(4, 3, [88] <unfinished ...>
[pid  5168] <... set_robust_list resumed>) = 0
[pid  5168] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5167] <... setpgid resumed>)      = 0
[pid  5165] setpgid(0, 0 <unfinished ...>
[pid  5168] <... prctl resumed>)        = 0
[pid  5168] setpgid(0, 0 <unfinished ...>
[pid  5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5163] <... close resumed>)        = 0
[pid  5168] <... setpgid resumed>)      = 0
[pid  5167] <... openat resumed>)       = 3
[pid  5165] <... setpgid resumed>)      = 0
[pid  5163] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5168] write(3, "1000", 4 <unfinished ...>
[pid  5167] write(3, "1000", 4 <unfinished ...>
[pid  5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5163] <... open resumed>)         = 5
[pid  5168] <... write resumed>)        = 4
[pid  5167] <... write resumed>)        = 4
[pid  5168] close(3 <unfinished ...>
[pid  5167] close(3 <unfinished ...>
[pid  5163] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5167] <... close resumed>)        = 0
[pid  5165] <... openat resumed>)       = 3
[pid  5165] write(3, "1000", 4 <unfinished ...>
[pid  5164] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5168] <... close resumed>)        = 0
[pid  5167] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5165] <... write resumed>)        = 4
[pid  5164] <... open resumed>)         = 5
[pid  5168] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5167] <... openat resumed>)       = 3
[pid  5165] close(3 <unfinished ...>
[pid  5164] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5168] <... openat resumed>)       = 3
[pid  5167] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5168] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5167] <... openat resumed>)       = 4
[pid  5168] <... openat resumed>)       = 4
[pid  5167] sendfile(4, 3, [88] <unfinished ...>
[pid  5165] <... close resumed>)        = 0
[pid  5168] sendfile(4, 3, [88] <unfinished ...>
[pid  5165] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5164] <... pwritev resumed>)      = 103
[pid  5165] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5164] exit_group(0 <unfinished ...>
[pid  5165] <... openat resumed>)       = 4
[pid  5164] <... exit_group resumed>)   = ?
[pid  5165] sendfile(4, 3, [88] <unfinished ...>
[pid  5163] <... pwritev resumed>)      = 103
[pid  5163] exit_group(0)               = ?
[pid  5164] +++ exited with 0 +++
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5071] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5071] close(3)                    = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555677f650) = 5169
[pid  5163] +++ exited with 0 +++
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5072] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5072] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5072] close(3)                    = 0
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5170 attached
./strace-static-x86_64: Process 5169 attached
, child_tidptr=0x55555677f650) = 5170
[pid  5170] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5169] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5170] <... set_robust_list resumed>) = 0
[pid  5170] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5169] <... set_robust_list resumed>) = 0
[pid  5169] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5170] setpgid(0, 0)               = 0
[pid  5170] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5170] write(3, "1000", 4)         = 4
[pid  5170] close(3 <unfinished ...>
[pid  5169] <... prctl resumed>)        = 0
[pid  5169] setpgid(0, 0 <unfinished ...>
[pid  5170] <... close resumed>)        = 0
[pid  5169] <... setpgid resumed>)      = 0
[pid  5170] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5170] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5170] sendfile(4, 3, [88] <unfinished ...>
[pid  5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5169] write(3, "1000", 4)         = 4
[pid  5169] close(3)                    = 0
[pid  5169] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5169] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   67.768070][ T5168] syz-executor166 (5168): drop_caches: 1
[   67.772346][ T5165] syz-executor166 (5165): drop_caches: 1
[   67.774277][ T5167] syz-executor166 (5167): drop_caches: 1
[   67.787047][ T5166] syz-executor166 (5166): drop_caches: 1
[   67.826311][ T5170] syz-executor166 (5170): drop_caches: 1
[   67.885475][ T5169] syz-executor166 (5169): drop_caches: 1
[pid  5169] sendfile(4, 3, [88] <unfinished ...>
[pid  5165] <... sendfile resumed> => [103], 15) = 15
[   67.931631][ T5165] syz-executor166 (5165): drop_caches: 1
[   67.934817][ T5167] syz-executor166 (5167): drop_caches: 1
[   67.965118][ T5166] syz-executor166 (5166): drop_caches: 1
[   67.974591][ T5168] syz-executor166 (5168): drop_caches: 1
[pid  5165] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5167] <... sendfile resumed> => [103], 15) = 15
[pid  5167] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5165] <... memfd_create resumed>) = 5
[pid  5165] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5169] <... sendfile resumed> => [103], 15) = 15
[pid  5165] <... mmap resumed>)         = 0x7f299346a000
[pid  5167] <... memfd_create resumed>) = 5
[pid  5167] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5168] <... sendfile resumed> => [103], 15) = 15
[pid  5169] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5166] <... sendfile resumed> => [103], 15) = 15
[   67.978810][ T5169] syz-executor166 (5169): drop_caches: 1
[pid  5169] <... memfd_create resumed>) = 5
[pid  5168] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5166] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5165] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5168] <... memfd_create resumed>) = 5
[pid  5166] <... memfd_create resumed>) = 5
[pid  5169] <... mmap resumed>)         = 0x7f299346a000
[pid  5168] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5168] <... mmap resumed>)         = 0x7f299346a000
[pid  5166] <... mmap resumed>)         = 0x7f299346a000
[pid  5170] <... sendfile resumed> => [103], 15) = 15
[pid  5168] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5170] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5169] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5167] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5166] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5165] <... write resumed>)        = 2097152
[pid  5170] <... memfd_create resumed>) = 5
[pid  5170] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5165] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5167] <... write resumed>)        = 2097152
[   68.021784][ T5170] syz-executor166 (5170): drop_caches: 1
[pid  5167] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5170] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5169] <... write resumed>)        = 2097152
[pid  5168] <... write resumed>)        = 2097152
[pid  5167] <... munmap resumed>)       = 0
[pid  5166] <... write resumed>)        = 2097152
[pid  5165] <... munmap resumed>)       = 0
[pid  5169] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5168] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5166] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5165] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5167] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6
[pid  5165] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5165] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5167] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5167] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5170] <... write resumed>)        = 2097152
[pid  5170] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5169] <... munmap resumed>)       = 0
[pid  5168] <... munmap resumed>)       = 0
[pid  5168] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5165] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5169] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5168] <... openat resumed>)       = 6
[pid  5167] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5165] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5169] <... openat resumed>)       = 6
[pid  5168] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5167] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5166] <... munmap resumed>)       = 0
[pid  5165] close(6 <unfinished ...>
[pid  5170] <... munmap resumed>)       = 0
[pid  5169] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5168] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5167] close(6 <unfinished ...>
[pid  5166] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5169] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5168] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5166] <... openat resumed>)       = 6
[pid  5170] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5169] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5168] <... ioctl resumed>)        = 0
[pid  5166] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5170] <... openat resumed>)       = 6
[pid  5169] <... ioctl resumed>)        = 0
[pid  5167] <... close resumed>)        = 0
[pid  5166] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5167] close(5 <unfinished ...>
[pid  5166] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5165] <... close resumed>)        = 0
[pid  5170] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5166] <... ioctl resumed>)        = 0
[pid  5170] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5168] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5170] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5168] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5170] <... ioctl resumed>)        = 0
[pid  5169] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5168] close(6 <unfinished ...>
[pid  5169] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5168] <... close resumed>)        = 0
[pid  5169] close(6 <unfinished ...>
[pid  5168] close(5 <unfinished ...>
[pid  5166] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5169] <... close resumed>)        = 0
[pid  5170] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5169] close(5 <unfinished ...>
[pid  5170] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5165] close(5 <unfinished ...>
[pid  5170] close(6 <unfinished ...>
[pid  5166] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5170] <... close resumed>)        = 0
[pid  5166] close(6 <unfinished ...>
[pid  5170] close(5 <unfinished ...>
[pid  5166] <... close resumed>)        = 0
[pid  5166] close(5 <unfinished ...>
[pid  5168] <... close resumed>)        = 0
[pid  5167] <... close resumed>)        = 0
[pid  5166] <... close resumed>)        = 0
[pid  5168] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5170] <... close resumed>)        = 0
[pid  5170] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5169] <... close resumed>)        = 0
[pid  5168] <... open resumed>)         = 5
[pid  5167] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5166] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5165] <... close resumed>)        = 0
[pid  5170] <... open resumed>)         = 5
[pid  5169] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5168] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5167] <... open resumed>)         = 5
[pid  5166] <... open resumed>)         = 5
[pid  5165] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5170] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5169] <... open resumed>)         = 5
[pid  5167] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5165] <... open resumed>)         = 5
[pid  5169] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5166] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5170] <... pwritev resumed>)      = 103
[pid  5168] <... pwritev resumed>)      = 103
[pid  5165] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5170] exit_group(0 <unfinished ...>
[pid  5168] exit_group(0 <unfinished ...>
[pid  5170] <... exit_group resumed>)   = ?
[pid  5170] +++ exited with 0 +++
[pid  5169] <... pwritev resumed>)      = 103
[pid  5168] <... exit_group resumed>)   = ?
[pid  5167] <... pwritev resumed>)      = 103
[pid  5166] <... pwritev resumed>)      = 103
[pid  5165] <... pwritev resumed>)      = 103
[pid  5169] exit_group(0 <unfinished ...>
[pid  5167] exit_group(0 <unfinished ...>
[pid  5166] exit_group(0 <unfinished ...>
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5170, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} ---
[pid  5167] <... exit_group resumed>)   = ?
[pid  5166] <... exit_group resumed>)   = ?
[pid  5169] <... exit_group resumed>)   = ?
[pid  5168] +++ exited with 0 +++
[pid  5167] +++ exited with 0 +++
[pid  5166] +++ exited with 0 +++
[pid  5165] exit_group(0 <unfinished ...>
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5165] <... exit_group resumed>)   = ?
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=13 /* 0.13 s */} ---
[pid  5078] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5076] <... openat resumed>)       = 3
[pid  5069] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5076] <... ioctl resumed>)        = 0
[pid  5072] <... openat resumed>)       = 3
[pid  5069] <... restart_syscall resumed>) = 0
[pid  5076] close(3 <unfinished ...>
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5076] <... close resumed>)        = 0
[pid  5072] <... ioctl resumed>)        = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5072] close(3./strace-static-x86_64: Process 5171 attached
 <unfinished ...>
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5072] <... close resumed>)        = 0
[pid  5171] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5078] <... ioctl resumed>)        = 0
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5171
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5171] <... set_robust_list resumed>) = 0
[pid  5169] +++ exited with 0 +++
[pid  5165] +++ exited with 0 +++
[pid  5078] close(3./strace-static-x86_64: Process 5172 attached
 <unfinished ...>
[pid  5171] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5078] <... close resumed>)        = 0
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5172
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5069] <... openat resumed>)       = 3
[pid  5172] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5171] <... prctl resumed>)        = 0
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5172] <... set_robust_list resumed>) = 0
[pid  5171] setpgid(0, 0 <unfinished ...>
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5171] <... setpgid resumed>)      = 0
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5172] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5171] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5071] <... openat resumed>)       = 3
[pid  5069] <... ioctl resumed>)        = 0
./strace-static-x86_64: Process 5173 attached
[pid  5172] <... prctl resumed>)        = 0
[pid  5171] <... openat resumed>)       = 3
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5069] close(3 <unfinished ...>
[pid  5173] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5172] setpgid(0, 0 <unfinished ...>
[pid  5171] write(3, "1000", 4 <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5173
[pid  5071] <... ioctl resumed>)        = 0
[pid  5173] <... set_robust_list resumed>) = 0
[pid  5172] <... setpgid resumed>)      = 0
[pid  5171] <... write resumed>)        = 4
[pid  5071] close(3 <unfinished ...>
[pid  5069] <... close resumed>)        = 0
[pid  5173] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5171] close(3 <unfinished ...>
[pid  5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5071] <... close resumed>)        = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5173] <... prctl resumed>)        = 0
[pid  5172] <... openat resumed>)       = 3
[pid  5171] <... close resumed>)        = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5174 attached
 <unfinished ...>
[pid  5173] setpgid(0, 0 <unfinished ...>
[pid  5172] write(3, "1000", 4 <unfinished ...>
[pid  5171] openat(AT_FDCWD, "/proc/partitions", O_RDONLY./strace-static-x86_64: Process 5175 attached
 <unfinished ...>
[pid  5174] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5173] <... setpgid resumed>)      = 0
[pid  5172] <... write resumed>)        = 4
[pid  5171] <... openat resumed>)       = 3
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5175
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5174] <... set_robust_list resumed>) = 0
[pid  5171] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5175] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5174] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5173] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5172] close(3 <unfinished ...>
[pid  5171] <... openat resumed>)       = 4
[pid  5070] <... openat resumed>)       = 3
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5174
[pid  5175] <... set_robust_list resumed>) = 0
[pid  5174] <... prctl resumed>)        = 0
[pid  5173] <... openat resumed>)       = 3
[pid  5172] <... close resumed>)        = 0
[pid  5171] sendfile(4, 3, [88] <unfinished ...>
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5175] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5174] setpgid(0, 0 <unfinished ...>
[pid  5173] write(3, "1000", 4 <unfinished ...>
[pid  5172] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5175] <... prctl resumed>)        = 0
[pid  5174] <... setpgid resumed>)      = 0
[pid  5070] <... ioctl resumed>)        = 0
[pid  5175] setpgid(0, 0 <unfinished ...>
[pid  5174] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5070] close(3 <unfinished ...>
[pid  5175] <... setpgid resumed>)      = 0
[pid  5174] <... openat resumed>)       = 3
[pid  5174] write(3, "1000", 4 <unfinished ...>
[pid  5070] <... close resumed>)        = 0
[pid  5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5174] <... write resumed>)        = 4
[pid  5174] close(3)                    = 0
[pid  5175] <... openat resumed>)       = 3
[pid  5174] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5175] write(3, "1000", 4 <unfinished ...>
[pid  5174] <... openat resumed>)       = 3
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5175] <... write resumed>)        = 4
[pid  5174] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5172] <... openat resumed>)       = 3
[pid  5175] close(3 <unfinished ...>
[pid  5174] <... openat resumed>)       = 4
[pid  5172] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5175] <... close resumed>)        = 0
[pid  5174] sendfile(4, 3, [88] <unfinished ...>
[pid  5172] <... openat resumed>)       = 4
[pid  5175] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5173] <... write resumed>)        = 4
[pid  5172] sendfile(4, 3, [88] <unfinished ...>
[pid  5175] <... openat resumed>)       = 3
./strace-static-x86_64: Process 5176 attached
[pid  5176] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5175] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5173] close(3 <unfinished ...>
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5176
[pid  5176] <... set_robust_list resumed>) = 0
[pid  5173] <... close resumed>)        = 0
[pid  5175] <... openat resumed>)       = 4
[pid  5175] sendfile(4, 3, [88] <unfinished ...>
[pid  5176] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5173] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5176] setpgid(0, 0)               = 0
[pid  5176] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5176] write(3, "1000", 4)         = 4
[pid  5176] close(3)                    = 0
[pid  5176] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5176] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5176] sendfile(4, 3, [88] <unfinished ...>
[pid  5173] <... openat resumed>)       = 3
[pid  5173] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   68.295294][ T5174] syz-executor166 (5174): drop_caches: 1
[   68.306997][ T5171] syz-executor166 (5171): drop_caches: 1
[   68.325676][ T5176] syz-executor166 (5176): drop_caches: 1
[   68.345595][ T5172] syz-executor166 (5172): drop_caches: 1
[   68.352684][ T5175] syz-executor166 (5175): drop_caches: 1
[   68.382709][ T5173] syz-executor166 (5173): drop_caches: 1
[pid  5173] sendfile(4, 3, [88] <unfinished ...>
[pid  5174] <... sendfile resumed> => [103], 15) = 15
[pid  5174] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5176] <... sendfile resumed> => [103], 15) = 15
[pid  5175] <... sendfile resumed> => [103], 15) = 15
[pid  5173] <... sendfile resumed> => [103], 15) = 15
[pid  5172] <... sendfile resumed> => [103], 15) = 15
[pid  5171] <... sendfile resumed> => [103], 15) = 15
[pid  5176] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5175] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5173] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5172] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5171] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5175] <... memfd_create resumed>) = 5
[pid  5173] <... memfd_create resumed>) = 5
[pid  5172] <... memfd_create resumed>) = 5
[pid  5173] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5173] <... mmap resumed>)         = 0x7f299346a000
[pid  5172] <... mmap resumed>)         = 0x7f299346a000
[pid  5174] <... memfd_create resumed>) = 5
[pid  5176] <... memfd_create resumed>) = 5
[pid  5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5176] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5175] <... mmap resumed>)         = 0x7f299346a000
[pid  5174] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   68.491766][ T5174] syz-executor166 (5174): drop_caches: 1
[   68.496209][ T5173] syz-executor166 (5173): drop_caches: 1
[   68.507783][ T5176] syz-executor166 (5176): drop_caches: 1
[   68.512857][ T5175] syz-executor166 (5175): drop_caches: 1
[   68.521197][ T5171] syz-executor166 (5171): drop_caches: 1
[   68.533866][ T5172] syz-executor166 (5172): drop_caches: 1
[pid  5176] <... mmap resumed>)         = 0x7f299346a000
[pid  5174] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5171] <... memfd_create resumed>) = 5
[pid  5171] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5172] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5175] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5173] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5171] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5176] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5174] <... write resumed>)        = 2097152
[pid  5173] <... write resumed>)        = 2097152
[pid  5174] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5175] <... write resumed>)        = 2097152
[pid  5173] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5172] <... write resumed>)        = 2097152
[pid  5171] <... write resumed>)        = 2097152
[pid  5176] <... write resumed>)        = 2097152
[pid  5175] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5173] <... munmap resumed>)       = 0
[pid  5172] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5171] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5176] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5174] <... munmap resumed>)       = 0
[pid  5174] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid  5171] <... munmap resumed>)       = 0
[pid  5176] <... munmap resumed>)       = 0
[pid  5174] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5176] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5174] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5176] <... openat resumed>)       = 6
[pid  5174] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5173] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5171] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5176] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5173] <... openat resumed>)       = 6
[pid  5171] <... openat resumed>)       = 6
[pid  5173] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5171] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5173] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5171] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5171] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5173] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5171] <... ioctl resumed>)        = 0
[pid  5173] <... ioctl resumed>)        = 0
[pid  5176] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5176] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5173] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5173] close(6)                    = 0
[pid  5173] close(5 <unfinished ...>
[pid  5175] <... munmap resumed>)       = 0
[pid  5174] <... ioctl resumed>)        = 0
[pid  5172] <... munmap resumed>)       = 0
[pid  5176] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5172] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5176] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5171] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5176] close(6 <unfinished ...>
[pid  5171] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5176] <... close resumed>)        = 0
[pid  5171] close(6 <unfinished ...>
[pid  5175] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5171] <... close resumed>)        = 0
[pid  5175] <... openat resumed>)       = 6
[pid  5176] close(5 <unfinished ...>
[pid  5171] close(5 <unfinished ...>
[pid  5174] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5175] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5174] close(6 <unfinished ...>
[pid  5173] <... close resumed>)        = 0
[pid  5172] <... openat resumed>)       = 6
[pid  5173] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5172] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5172] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5175] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5174] <... close resumed>)        = 0
[pid  5173] <... open resumed>)         = 5
[pid  5176] <... close resumed>)        = 0
[pid  5174] close(5 <unfinished ...>
[pid  5173] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5172] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5175] <... ioctl resumed>)        = 0
[pid  5172] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5172] close(6)                    = 0
[pid  5172] close(5 <unfinished ...>
[pid  5176] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5176] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5175] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5175] close(6)                    = 0
[pid  5175] close(5 <unfinished ...>
[pid  5176] <... pwritev resumed>)      = 103
[pid  5173] <... pwritev resumed>)      = 103
[pid  5176] exit_group(0 <unfinished ...>
[pid  5173] exit_group(0 <unfinished ...>
[pid  5176] <... exit_group resumed>)   = ?
[pid  5173] <... exit_group resumed>)   = ?
[pid  5176] +++ exited with 0 +++
[pid  5173] +++ exited with 0 +++
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5176, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=8 /* 0.08 s */} ---
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5173, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5070] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5078] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5070] <... restart_syscall resumed>) = 0
[pid  5172] <... close resumed>)        = 0
[pid  5175] <... close resumed>)        = 0
[pid  5174] <... close resumed>)        = 0
[pid  5171] <... close resumed>)        = 0
[pid  5174] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5174] <... open resumed>)         = 5
[pid  5078] <... openat resumed>)       = 3
[pid  5070] <... openat resumed>)       = 3
[pid  5172] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5171] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5175] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5070] <... ioctl resumed>)        = 0
[pid  5070] close(3)                    = 0
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5172] <... open resumed>)         = 5
[pid  5171] <... open resumed>)         = 5
[pid  5175] <... open resumed>)         = 5
[pid  5172] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5171] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452./strace-static-x86_64: Process 5177 attached
 <unfinished ...>
[pid  5175] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5177
[pid  5177] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5174] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5177] <... set_robust_list resumed>) = 0
[pid  5177] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5177] setpgid(0, 0)               = 0
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5177] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5078] <... ioctl resumed>)        = 0
[pid  5078] close(3)                    = 0
[pid  5177] <... openat resumed>)       = 3
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5177] write(3, "1000", 4)         = 4
[pid  5177] close(3./strace-static-x86_64: Process 5178 attached
)                    = 0
[pid  5177] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5178
[pid  5178] set_robust_list(0x55555677f660, 24) = 0
[pid  5177] <... openat resumed>)       = 3
[pid  5178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5177] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5178] setpgid(0, 0)               = 0
[pid  5177] <... openat resumed>)       = 4
[pid  5175] <... pwritev resumed>)      = 103
[pid  5174] <... pwritev resumed>)      = 103
[pid  5172] <... pwritev resumed>)      = 103
[pid  5171] <... pwritev resumed>)      = 103
[pid  5175] exit_group(0 <unfinished ...>
[pid  5174] exit_group(0 <unfinished ...>
[pid  5172] exit_group(0 <unfinished ...>
[pid  5171] exit_group(0 <unfinished ...>
[pid  5175] <... exit_group resumed>)   = ?
[pid  5174] <... exit_group resumed>)   = ?
[pid  5172] <... exit_group resumed>)   = ?
[pid  5171] <... exit_group resumed>)   = ?
[pid  5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5177] sendfile(4, 3, [88] <unfinished ...>
[pid  5175] +++ exited with 0 +++
[pid  5174] +++ exited with 0 +++
[pid  5172] +++ exited with 0 +++
[pid  5171] +++ exited with 0 +++
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5171, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5174, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} ---
[pid  5076] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5069] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5076] <... restart_syscall resumed>) = 0
[pid  5069] <... restart_syscall resumed>) = 0
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5076] <... openat resumed>)       = 3
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5069] <... openat resumed>)       = 3
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5076] <... ioctl resumed>)        = 0
[pid  5069] <... ioctl resumed>)        = 0
[pid  5076] close(3 <unfinished ...>
[pid  5069] close(3 <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5076] <... close resumed>)        = 0
[pid  5069] <... close resumed>)        = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5179 attached
 <unfinished ...>
[pid  5178] <... openat resumed>)       = 3
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5071] <... openat resumed>)       = 3
[pid  5179] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5179
[pid  5179] <... set_robust_list resumed>) = 0
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5180
[pid  5179] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5179] setpgid(0, 0./strace-static-x86_64: Process 5180 attached
)               = 0
[pid  5180] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5179] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5180] <... set_robust_list resumed>) = 0
[pid  5179] <... openat resumed>)       = 3
[pid  5180] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5179] write(3, "1000", 4)         = 4
[pid  5179] close(3)                    = 0
[pid  5179] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5179] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5180] <... prctl resumed>)        = 0
[pid  5179] sendfile(4, 3, [88] <unfinished ...>
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5072] <... openat resumed>)       = 3
[pid  5071] <... ioctl resumed>)        = 0
[pid  5178] write(3, "1000", 4 <unfinished ...>
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5071] close(3 <unfinished ...>
[pid  5178] <... write resumed>)        = 4
[pid  5071] <... close resumed>)        = 0
[pid  5178] close(3 <unfinished ...>
[pid  5072] <... ioctl resumed>)        = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5178] <... close resumed>)        = 0
[pid  5072] close(3./strace-static-x86_64: Process 5181 attached
 <unfinished ...>
[pid  5178] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5072] <... close resumed>)        = 0
[pid  5181] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5178] <... openat resumed>)       = 3
./strace-static-x86_64: Process 5182 attached
[pid  5181] <... set_robust_list resumed>) = 0
[pid  5180] setpgid(0, 0 <unfinished ...>
[pid  5178] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5182] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5181
[pid  5182] <... set_robust_list resumed>) = 0
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5182
[pid  5181] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5182] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5181] <... prctl resumed>)        = 0
[pid  5180] <... setpgid resumed>)      = 0
[pid  5178] <... openat resumed>)       = 4
[pid  5180] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5181] setpgid(0, 0 <unfinished ...>
[pid  5180] <... openat resumed>)       = 3
[pid  5182] setpgid(0, 0 <unfinished ...>
[pid  5181] <... setpgid resumed>)      = 0
[pid  5180] write(3, "1000", 4 <unfinished ...>
[pid  5178] sendfile(4, 3, [88] <unfinished ...>
[pid  5180] <... write resumed>)        = 4
[pid  5180] close(3)                    = 0
[pid  5180] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5180] <... openat resumed>)       = 3
[pid  5180] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5181] <... openat resumed>)       = 3
[pid  5180] sendfile(4, 3, [88] <unfinished ...>
[pid  5182] <... setpgid resumed>)      = 0
[pid  5181] write(3, "1000", 4)         = 4
[pid  5182] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5181] close(3)                    = 0
[pid  5181] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5181] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5182] <... openat resumed>)       = 3
[pid  5181] sendfile(4, 3, [88] <unfinished ...>
[pid  5182] write(3, "1000", 4)         = 4
[pid  5182] close(3)                    = 0
[pid  5182] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5182] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   68.884153][ T5177] syz-executor166 (5177): drop_caches: 1
[   68.903478][ T5179] syz-executor166 (5179): drop_caches: 1
[   68.915687][ T5178] syz-executor166 (5178): drop_caches: 1
[   68.917965][ T5181] syz-executor166 (5181): drop_caches: 1
[   68.922876][ T5180] syz-executor166 (5180): drop_caches: 1
[pid  5182] sendfile(4, 3, [88] <unfinished ...>
[pid  5177] <... sendfile resumed> => [103], 15) = 15
[pid  5177] memfd_create("syzkaller", 0) = 5
[pid  5177] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   68.990958][ T5182] syz-executor166 (5182): drop_caches: 1
[   69.025912][ T5177] syz-executor166 (5177): drop_caches: 1
[   69.085845][ T5179] syz-executor166 (5179): drop_caches: 1
[   69.099549][ T5181] syz-executor166 (5181): drop_caches: 1
[   69.120421][ T5178] syz-executor166 (5178): drop_caches: 1
[   69.129015][ T5180] syz-executor166 (5180): drop_caches: 1
[pid  5177] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5182] <... sendfile resumed> => [103], 15) = 15
[pid  5181] <... sendfile resumed> => [103], 15) = 15
[pid  5180] <... sendfile resumed> => [103], 15) = 15
[pid  5178] <... sendfile resumed> => [103], 15) = 15
[pid  5177] <... write resumed>)        = 2097152
[pid  5179] <... sendfile resumed> => [103], 15) = 15
[pid  5182] memfd_create("syzkaller", 0) = 5
[pid  5179] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5182] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5180] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5177] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5179] <... memfd_create resumed>) = 5
[pid  5179] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   69.133342][ T5182] syz-executor166 (5182): drop_caches: 1
[pid  5180] <... memfd_create resumed>) = 5
[pid  5182] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5181] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5179] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5178] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5177] <... munmap resumed>)       = 0
[pid  5181] <... memfd_create resumed>) = 5
[pid  5180] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5177] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5181] <... mmap resumed>)         = 0x7f299346a000
[pid  5178] <... memfd_create resumed>) = 5
[pid  5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5177] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5177] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5177] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5177] close(6)                    = 0
[pid  5177] close(5 <unfinished ...>
[pid  5179] <... write resumed>)        = 2097152
[pid  5180] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5177] <... close resumed>)        = 0
[pid  5181] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5178] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5179] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5182] <... write resumed>)        = 2097152
[pid  5181] <... write resumed>)        = 2097152
[pid  5179] <... munmap resumed>)       = 0
[pid  5177] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5179] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5181] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5179] <... openat resumed>)       = 6
[pid  5177] <... open resumed>)         = 5
[pid  5179] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5177] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5179] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5182] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5181] <... munmap resumed>)       = 0
[pid  5180] <... write resumed>)        = 2097152
[pid  5178] <... write resumed>)        = 2097152
[pid  5177] <... pwritev resumed>)      = 103
[pid  5179] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5181] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5180] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5179] <... ioctl resumed>)        = 0
[pid  5178] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5177] exit_group(0 <unfinished ...>
[pid  5180] <... munmap resumed>)       = 0
[pid  5177] <... exit_group resumed>)   = ?
[pid  5179] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5181] <... openat resumed>)       = 6
[pid  5181] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5182] <... munmap resumed>)       = 0
[pid  5181] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5180] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5179] close(6 <unfinished ...>
[pid  5178] <... munmap resumed>)       = 0
[pid  5182] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5181] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5180] <... openat resumed>)       = 6
[pid  5179] <... close resumed>)        = 0
[pid  5182] <... openat resumed>)       = 6
[pid  5181] <... ioctl resumed>)        = 0
[pid  5178] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5182] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5180] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5179] close(5 <unfinished ...>
[pid  5178] <... openat resumed>)       = 6
[pid  5182] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5180] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5177] +++ exited with 0 +++
[pid  5181] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5177, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5181] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5070] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5181] close(6 <unfinished ...>
[pid  5180] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5070] <... restart_syscall resumed>) = 0
[pid  5180] <... ioctl resumed>)        = 0
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5070] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5070] close(3)                    = 0
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5180] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5183
[pid  5180] close(6 <unfinished ...>
[pid  5182] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5181] <... close resumed>)        = 0
[pid  5180] <... close resumed>)        = 0
[pid  5182] <... ioctl resumed>)        = 0
[pid  5181] close(5 <unfinished ...>
[pid  5180] close(5./strace-static-x86_64: Process 5183 attached
 <unfinished ...>
[pid  5183] set_robust_list(0x55555677f660, 24) = 0
[pid  5183] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5183] setpgid(0, 0 <unfinished ...>
[pid  5178] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5178] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5183] <... setpgid resumed>)      = 0
[pid  5182] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5183] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5182] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5182] close(6 <unfinished ...>
[pid  5183] <... openat resumed>)       = 3
[pid  5182] <... close resumed>)        = 0
[pid  5182] close(5 <unfinished ...>
[pid  5178] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5183] write(3, "1000", 4 <unfinished ...>
[pid  5182] <... close resumed>)        = 0
[pid  5178] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5183] <... write resumed>)        = 4
[pid  5181] <... close resumed>)        = 0
[pid  5179] <... close resumed>)        = 0
[pid  5183] close(3 <unfinished ...>
[pid  5179] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5178] close(6 <unfinished ...>
[pid  5183] <... close resumed>)        = 0
[pid  5178] <... close resumed>)        = 0
[pid  5178] close(5 <unfinished ...>
[pid  5183] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5179] <... open resumed>)         = 5
[pid  5183] <... openat resumed>)       = 3
[pid  5181] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5180] <... close resumed>)        = 0
[pid  5179] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5181] <... open resumed>)         = 5
[pid  5181] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5182] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5180] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5182] <... open resumed>)         = 5
[pid  5182] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5180] <... open resumed>)         = 5
[pid  5180] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5183] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5182] <... pwritev resumed>)      = 103
[pid  5181] <... pwritev resumed>)      = 103
[pid  5182] exit_group(0 <unfinished ...>
[pid  5181] exit_group(0 <unfinished ...>
[pid  5180] <... pwritev resumed>)      = 103
[pid  5179] <... pwritev resumed>)      = 103
[pid  5182] <... exit_group resumed>)   = ?
[pid  5181] <... exit_group resumed>)   = ?
[pid  5180] exit_group(0 <unfinished ...>
[pid  5179] exit_group(0 <unfinished ...>
[pid  5182] +++ exited with 0 +++
[pid  5181] +++ exited with 0 +++
[pid  5180] <... exit_group resumed>)   = ?
[pid  5183] sendfile(4, 3, [88] <unfinished ...>
[pid  5180] +++ exited with 0 +++
[pid  5179] <... exit_group resumed>)   = ?
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=0, si_stime=5 /* 0.05 s */} ---
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5182, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  5072] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5072] close(3 <unfinished ...>
[pid  5179] +++ exited with 0 +++
[pid  5072] <... close resumed>)        = 0
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5180, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5179, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} ---
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5184
[pid  5069] <... openat resumed>)       = 3
./strace-static-x86_64: Process 5184 attached
[pid  5184] set_robust_list(0x55555677f660, 24) = 0
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5184] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5071] <... openat resumed>)       = 3
[pid  5184] <... prctl resumed>)        = 0
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5184] setpgid(0, 0 <unfinished ...>
[pid  5071] <... ioctl resumed>)        = 0
[pid  5069] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5071] close(3 <unfinished ...>
[pid  5069] close(3 <unfinished ...>
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5069] <... close resumed>)        = 0
[pid  5071] <... close resumed>)        = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5178] <... close resumed>)        = 0
[pid  5076] <... openat resumed>)       = 3
[pid  5178] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5185
./strace-static-x86_64: Process 5185 attached
[pid  5178] <... open resumed>)         = 5
[pid  5184] <... setpgid resumed>)      = 0
[pid  5184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5178] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452./strace-static-x86_64: Process 5186 attached
 <unfinished ...>
[pid  5185] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5184] <... openat resumed>)       = 3
[pid  5076] <... ioctl resumed>)        = 0
[pid  5185] <... set_robust_list resumed>) = 0
[pid  5184] write(3, "1000", 4 <unfinished ...>
[pid  5076] close(3 <unfinished ...>
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5186
[pid  5186] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5184] <... write resumed>)        = 4
[pid  5076] <... close resumed>)        = 0
[pid  5184] close(3 <unfinished ...>
[pid  5186] <... set_robust_list resumed>) = 0
[pid  5185] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5184] <... close resumed>)        = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5186] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5184] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5186] <... prctl resumed>)        = 0
[pid  5184] <... openat resumed>)       = 3
[pid  5184] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5186] setpgid(0, 0 <unfinished ...>
[pid  5184] <... openat resumed>)       = 4
[pid  5186] <... setpgid resumed>)      = 0
[pid  5184] sendfile(4, 3, [88]./strace-static-x86_64: Process 5187 attached
 <unfinished ...>
[pid  5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5185] <... prctl resumed>)        = 0
[pid  5187] set_robust_list(0x55555677f660, 24) = 0
[pid  5187] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5185] setpgid(0, 0 <unfinished ...>
[pid  5187] <... prctl resumed>)        = 0
[pid  5187] setpgid(0, 0 <unfinished ...>
[pid  5185] <... setpgid resumed>)      = 0
[pid  5187] <... setpgid resumed>)      = 0
[pid  5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5186] <... openat resumed>)       = 3
[pid  5187] <... openat resumed>)       = 3
[pid  5185] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5187
[pid  5187] write(3, "1000", 4)         = 4
[pid  5187] close(3)                    = 0
[pid  5187] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5187] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5187] sendfile(4, 3, [88] <unfinished ...>
[pid  5186] write(3, "1000", 4 <unfinished ...>
[pid  5185] <... openat resumed>)       = 3
[pid  5178] <... pwritev resumed>)      = 103
[pid  5186] <... write resumed>)        = 4
[pid  5185] write(3, "1000", 4 <unfinished ...>
[pid  5186] close(3 <unfinished ...>
[pid  5185] <... write resumed>)        = 4
[pid  5178] exit_group(0 <unfinished ...>
[pid  5186] <... close resumed>)        = 0
[pid  5185] close(3 <unfinished ...>
[pid  5178] <... exit_group resumed>)   = ?
[pid  5186] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5185] <... close resumed>)        = 0
[pid  5178] +++ exited with 0 +++
[pid  5186] <... openat resumed>)       = 3
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5186] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5185] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5186] <... openat resumed>)       = 4
[pid  5185] <... openat resumed>)       = 3
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5186] sendfile(4, 3, [88] <unfinished ...>
[pid  5185] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5078] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5078] close(3)                    = 0
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5188 attached
, child_tidptr=0x55555677f650) = 5188
[pid  5185] <... openat resumed>)       = 4
[pid  5188] set_robust_list(0x55555677f660, 24) = 0
[pid  5188] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5185] sendfile(4, 3, [88] <unfinished ...>
[pid  5188] setpgid(0, 0)               = 0
[pid  5188] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5188] write(3, "1000", 4)         = 4
[pid  5188] close(3)                    = 0
[pid  5188] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5188] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   69.483149][ T5183] syz-executor166 (5183): drop_caches: 1
[   69.525440][ T5184] syz-executor166 (5184): drop_caches: 1
[   69.545744][ T5185] syz-executor166 (5185): drop_caches: 1
[   69.560582][ T5187] syz-executor166 (5187): drop_caches: 1
[   69.577564][ T5186] syz-executor166 (5186): drop_caches: 1
[   69.587683][ T5188] syz-executor166 (5188): drop_caches: 1
[pid  5188] sendfile(4, 3, [88] <unfinished ...>
[pid  5183] <... sendfile resumed> => [103], 15) = 15
[   69.632565][ T5183] syz-executor166 (5183): drop_caches: 1
[pid  5185] <... sendfile resumed> => [103], 15) = 15
[pid  5183] memfd_create("syzkaller", 0) = 5
[pid  5185] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5183] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5185] <... memfd_create resumed>) = 5
[pid  5185] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5183] <... mmap resumed>)         = 0x7f299346a000
[   69.684906][ T5185] syz-executor166 (5185): drop_caches: 1
[   69.686306][ T5184] syz-executor166 (5184): drop_caches: 1
[   69.706859][ T5187] syz-executor166 (5187): drop_caches: 1
[pid  5185] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5187] <... sendfile resumed> => [103], 15) = 15
[pid  5186] <... sendfile resumed> => [103], 15) = 15
[pid  5185] <... write resumed>)        = 2097152
[pid  5183] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5184] <... sendfile resumed> => [103], 15) = 15
[pid  5184] memfd_create("syzkaller", 0) = 5
[pid  5187] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5185] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5187] <... memfd_create resumed>) = 5
[pid  5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5186] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5184] <... mmap resumed>)         = 0x7f299346a000
[pid  5186] <... memfd_create resumed>) = 5
[pid  5185] <... munmap resumed>)       = 0
[pid  5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5185] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5188] <... sendfile resumed> => [103], 15) = 15
[pid  5188] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5185] <... openat resumed>)       = 6
[pid  5188] <... memfd_create resumed>) = 5
[pid  5185] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5188] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5185] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5187] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5186] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5185] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5185] close(6)                    = 0
[pid  5185] close(5 <unfinished ...>
[pid  5183] <... write resumed>)        = 2097152
[   69.742249][ T5186] syz-executor166 (5186): drop_caches: 1
[   69.763043][ T5188] syz-executor166 (5188): drop_caches: 1
[pid  5188] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5183] munmap(0x7f299346a000, 138412032) = 0
[pid  5186] <... write resumed>)        = 2097152
[pid  5185] <... close resumed>)        = 0
[pid  5184] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5183] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5186] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5185] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5183] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5183] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5183] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5183] close(6)                    = 0
[pid  5183] close(5 <unfinished ...>
[pid  5185] <... open resumed>)         = 5
[pid  5186] <... munmap resumed>)       = 0
[pid  5185] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5186] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6
[pid  5186] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5186] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5186] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5186] close(6)                    = 0
[pid  5186] close(5 <unfinished ...>
[pid  5187] <... write resumed>)        = 2097152
[pid  5185] <... pwritev resumed>)      = 103
[pid  5184] <... write resumed>)        = 2097152
[pid  5187] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5185] exit_group(0 <unfinished ...>
[pid  5184] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5185] <... exit_group resumed>)   = ?
[pid  5185] +++ exited with 0 +++
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5185, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
[pid  5188] <... write resumed>)        = 2097152
[pid  5187] <... munmap resumed>)       = 0
[pid  5184] <... munmap resumed>)       = 0
[pid  5188] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5187] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5184] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5186] <... close resumed>)        = 0
[pid  5184] <... openat resumed>)       = 6
[pid  5187] <... openat resumed>)       = 6
[pid  5187] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5187] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5183] <... close resumed>)        = 0
[pid  5183] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5187] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5183] <... open resumed>)         = 5
[pid  5069] <... openat resumed>)       = 3
[pid  5183] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5187] <... ioctl resumed>)        = 0
[pid  5184] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5069] <... ioctl resumed>)        = 0
[pid  5184] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5069] close(3 <unfinished ...>
[pid  5186] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5184] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5186] <... open resumed>)         = 5
[pid  5184] <... ioctl resumed>)        = 0
[pid  5069] <... close resumed>)        = 0
[pid  5187] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5187] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5186] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452./strace-static-x86_64: Process 5189 attached
 <unfinished ...>
[pid  5188] <... munmap resumed>)       = 0
[pid  5187] close(6 <unfinished ...>
[pid  5186] <... pwritev resumed>)      = 103
[pid  5183] <... pwritev resumed>)      = 103
[pid  5189] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5189
[pid  5189] <... set_robust_list resumed>) = 0
[pid  5188] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5189] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5188] <... openat resumed>)       = 6
[pid  5187] <... close resumed>)        = 0
[pid  5186] exit_group(0 <unfinished ...>
[pid  5183] exit_group(0 <unfinished ...>
[pid  5187] close(5 <unfinished ...>
[pid  5189] setpgid(0, 0 <unfinished ...>
[pid  5184] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5188] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5189] <... setpgid resumed>)      = 0
[pid  5186] <... exit_group resumed>)   = ?
[pid  5184] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5183] <... exit_group resumed>)   = ?
[pid  5184] close(6 <unfinished ...>
[pid  5189] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5184] <... close resumed>)        = 0
[pid  5188] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5188] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5184] close(5 <unfinished ...>
[pid  5189] <... openat resumed>)       = 3
[pid  5183] +++ exited with 0 +++
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5183, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=11 /* 0.11 s */} ---
[pid  5070] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5189] write(3, "1000", 4 <unfinished ...>
[pid  5070] <... restart_syscall resumed>) = 0
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  5070] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5070] close(3)                    = 0
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5190 attached
 <unfinished ...>
[pid  5189] <... write resumed>)        = 4
[pid  5186] +++ exited with 0 +++
[pid  5190] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5190
[pid  5190] <... set_robust_list resumed>) = 0
[pid  5189] close(3 <unfinished ...>
[pid  5188] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5184] <... close resumed>)        = 0
[pid  5189] <... close resumed>)        = 0
[pid  5188] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5188] close(6 <unfinished ...>
[pid  5190] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5189] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5188] <... close resumed>)        = 0
[pid  5190] <... prctl resumed>)        = 0
[pid  5190] setpgid(0, 0)               = 0
[pid  5188] close(5 <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5071] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5071] close(3)                    = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555677f650) = 5191
./strace-static-x86_64: Process 5191 attached
[pid  5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5191] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5190] <... openat resumed>)       = 3
[pid  5189] <... openat resumed>)       = 3
[pid  5191] <... set_robust_list resumed>) = 0
[pid  5190] write(3, "1000", 4 <unfinished ...>
[pid  5191] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5190] <... write resumed>)        = 4
[pid  5189] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5190] close(3)                    = 0
[pid  5190] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5189] <... openat resumed>)       = 4
[pid  5191] <... prctl resumed>)        = 0
[pid  5190] <... openat resumed>)       = 3
[pid  5191] setpgid(0, 0 <unfinished ...>
[pid  5190] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5191] <... setpgid resumed>)      = 0
[pid  5190] <... openat resumed>)       = 4
[pid  5191] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5190] sendfile(4, 3, [88] <unfinished ...>
[pid  5191] <... openat resumed>)       = 3
[pid  5191] write(3, "1000", 4)         = 4
[pid  5191] close(3)                    = 0
[pid  5191] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5189] sendfile(4, 3, [88] <unfinished ...>
[pid  5188] <... close resumed>)        = 0
[pid  5187] <... close resumed>)        = 0
[pid  5184] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5188] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5187] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5184] <... open resumed>)         = 5
[pid  5184] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5187] <... open resumed>)         = 5
[pid  5191] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5188] <... open resumed>)         = 5
[pid  5187] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5191] <... openat resumed>)       = 4
[pid  5191] sendfile(4, 3, [88] <unfinished ...>
[pid  5188] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5187] <... pwritev resumed>)      = 103
[pid  5184] <... pwritev resumed>)      = 103
[pid  5187] exit_group(0)               = ?
[pid  5184] exit_group(0 <unfinished ...>
[pid  5187] +++ exited with 0 +++
[pid  5184] <... exit_group resumed>)   = ?
[pid  5184] +++ exited with 0 +++
[pid  5188] <... pwritev resumed>)      = 103
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5184, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} ---
[pid  5072] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5188] exit_group(0 <unfinished ...>
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} ---
[pid  5072] <... restart_syscall resumed>) = 0
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5076] <... openat resumed>)       = 3
[pid  5076] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5072] <... openat resumed>)       = 3
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5076] <... ioctl resumed>)        = 0
[pid  5072] <... ioctl resumed>)        = 0
[pid  5188] <... exit_group resumed>)   = ?
[pid  5076] close(3 <unfinished ...>
[pid  5072] close(3 <unfinished ...>
[pid  5076] <... close resumed>)        = 0
[pid  5072] <... close resumed>)        = 0
[pid  5188] +++ exited with 0 +++
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5193 attached
./strace-static-x86_64: Process 5192 attached
 <unfinished ...>
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5188, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5192] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5193] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5192] <... set_robust_list resumed>) = 0
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5193
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  5078] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5078] close(3)                    = 0
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5194 attached
 <unfinished ...>
[pid  5193] <... set_robust_list resumed>) = 0
[pid  5192] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5192
[pid  5193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5193] setpgid(0, 0 <unfinished ...>
[pid  5194] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5193] <... setpgid resumed>)      = 0
[pid  5192] <... prctl resumed>)        = 0
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5194
[pid  5194] <... set_robust_list resumed>) = 0
[pid  5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5192] setpgid(0, 0 <unfinished ...>
[pid  5194] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5193] <... openat resumed>)       = 3
[pid  5192] <... setpgid resumed>)      = 0
[pid  5193] write(3, "1000", 4 <unfinished ...>
[pid  5192] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5193] <... write resumed>)        = 4
[pid  5192] <... openat resumed>)       = 3
[pid  5193] close(3 <unfinished ...>
[pid  5192] write(3, "1000", 4 <unfinished ...>
[pid  5193] <... close resumed>)        = 0
[pid  5192] <... write resumed>)        = 4
[pid  5193] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5192] close(3 <unfinished ...>
[pid  5193] <... openat resumed>)       = 3
[pid  5192] <... close resumed>)        = 0
[pid  5193] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5192] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5193] <... openat resumed>)       = 4
[pid  5192] <... openat resumed>)       = 3
[pid  5193] sendfile(4, 3, [88] <unfinished ...>
[pid  5192] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5192] sendfile(4, 3, [88] <unfinished ...>
[pid  5194] <... prctl resumed>)        = 0
[pid  5194] setpgid(0, 0)               = 0
[pid  5194] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5194] write(3, "1000", 4)         = 4
[pid  5194] close(3)                    = 0
[pid  5194] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5194] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   70.061324][ T5191] syz-executor166 (5191): drop_caches: 1
[   70.083060][ T5189] syz-executor166 (5189): drop_caches: 1
[   70.091028][ T5190] syz-executor166 (5190): drop_caches: 1
[pid  5194] sendfile(4, 3, [88] <unfinished ...>
[pid  5191] <... sendfile resumed> => [103], 15) = 15
[pid  5191] memfd_create("syzkaller", 0) = 5
[pid  5191] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   70.196312][ T5191] syz-executor166 (5191): drop_caches: 1
[   70.223433][ T5192] syz-executor166 (5192): drop_caches: 1
[   70.233011][ T5193] syz-executor166 (5193): drop_caches: 1
[pid  5190] <... sendfile resumed> => [103], 15) = 15
[pid  5189] <... sendfile resumed> => [103], 15) = 15
[pid  5189] memfd_create("syzkaller", 0) = 5
[pid  5189] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5191] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5190] memfd_create("syzkaller", 0) = 5
[   70.261511][ T5194] syz-executor166 (5194): drop_caches: 1
[   70.275109][ T5190] syz-executor166 (5190): drop_caches: 1
[   70.287901][ T5189] syz-executor166 (5189): drop_caches: 1
[pid  5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5192] <... sendfile resumed> => [103], 15) = 15
[pid  5190] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5189] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5192] memfd_create("syzkaller", 0) = 5
[pid  5191] <... write resumed>)        = 2097152
[pid  5192] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[   70.333137][ T5192] syz-executor166 (5192): drop_caches: 1
[   70.356555][ T5193] syz-executor166 (5193): drop_caches: 1
[pid  5191] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5192] <... mmap resumed>)         = 0x7f299346a000
[pid  5191] <... munmap resumed>)       = 0
[pid  5191] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 6
[pid  5191] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5191] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5193] <... sendfile resumed> => [103], 15) = 15
[pid  5191] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5191] close(6)                    = 0
[pid  5191] close(5 <unfinished ...>
[pid  5193] memfd_create("syzkaller", 0) = 5
[pid  5193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5192] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5194] <... sendfile resumed> => [103], 15) = 15
[pid  5191] <... close resumed>)        = 0
[pid  5189] <... write resumed>)        = 2097152
[pid  5194] memfd_create("syzkaller", 0) = 5
[pid  5194] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5190] <... write resumed>)        = 2097152
[pid  5189] munmap(0x7f299346a000, 138412032 <unfinished ...>
[   70.378624][ T5194] syz-executor166 (5194): drop_caches: 1
[pid  5190] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5191] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5189] <... munmap resumed>)       = 0
[pid  5190] <... munmap resumed>)       = 0
[pid  5189] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5190] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5189] <... openat resumed>)       = 6
[pid  5194] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5191] <... open resumed>)         = 5
[pid  5190] <... openat resumed>)       = 6
[pid  5189] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5191] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5190] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5189] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5190] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5190] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5193] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5192] <... write resumed>)        = 2097152
[pid  5191] <... pwritev resumed>)      = 103
[pid  5190] <... ioctl resumed>)        = 0
[pid  5189] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5192] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5191] exit_group(0 <unfinished ...>
[pid  5192] <... munmap resumed>)       = 0
[pid  5191] <... exit_group resumed>)   = ?
[pid  5191] +++ exited with 0 +++
[pid  5189] <... ioctl resumed>)        = 0
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5191, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5071] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5192] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5194] <... write resumed>)        = 2097152
[pid  5193] <... write resumed>)        = 2097152
[pid  5192] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5071] <... restart_syscall resumed>) = 0
[pid  5194] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5192] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5189] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5190] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5193] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5194] <... munmap resumed>)       = 0
[pid  5192] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5190] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5071] <... openat resumed>)       = 3
[pid  5190] close(6 <unfinished ...>
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5190] <... close resumed>)        = 0
[pid  5071] <... ioctl resumed>)        = 0
[pid  5190] close(5 <unfinished ...>
[pid  5071] close(3)                    = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5195 attached
 <unfinished ...>
[pid  5193] <... munmap resumed>)       = 0
[pid  5189] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5195
[pid  5189] close(6 <unfinished ...>
[pid  5193] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5189] <... close resumed>)        = 0
[pid  5195] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5193] <... openat resumed>)       = 6
[pid  5192] <... ioctl resumed>)        = 0
[pid  5189] close(5 <unfinished ...>
[pid  5195] <... set_robust_list resumed>) = 0
[pid  5195] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5194] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5195] <... prctl resumed>)        = 0
[pid  5194] <... openat resumed>)       = 6
[pid  5195] setpgid(0, 0 <unfinished ...>
[pid  5194] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5195] <... setpgid resumed>)      = 0
[pid  5194] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5195] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5194] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5195] <... openat resumed>)       = 3
[pid  5194] <... ioctl resumed>)        = 0
[pid  5192] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5192] close(6)                    = 0
[pid  5192] close(5 <unfinished ...>
[pid  5193] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5190] <... close resumed>)        = 0
[pid  5194] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5193] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5194] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5195] write(3, "1000", 4 <unfinished ...>
[pid  5194] close(6 <unfinished ...>
[pid  5195] <... write resumed>)        = 4
[pid  5194] <... close resumed>)        = 0
[pid  5195] close(3 <unfinished ...>
[pid  5194] close(5 <unfinished ...>
[pid  5195] <... close resumed>)        = 0
[pid  5193] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5190] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5189] <... close resumed>)        = 0
[pid  5195] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5195] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5195] sendfile(4, 3, [88] <unfinished ...>
[pid  5193] <... ioctl resumed>)        = 0
[pid  5190] <... open resumed>)         = 5
[pid  5189] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5189] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5194] <... close resumed>)        = 0
[pid  5190] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5193] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5193] close(6)                    = 0
[pid  5193] close(5 <unfinished ...>
[pid  5192] <... close resumed>)        = 0
[pid  5192] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5189] <... pwritev resumed>)      = 103
[pid  5192] <... open resumed>)         = 5
[pid  5189] exit_group(0 <unfinished ...>
[pid  5192] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5189] <... exit_group resumed>)   = ?
[pid  5194] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5190] <... pwritev resumed>)      = 103
[pid  5194] <... open resumed>)         = 5
[pid  5194] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5190] exit_group(0 <unfinished ...>
[pid  5192] <... pwritev resumed>)      = 103
[pid  5190] <... exit_group resumed>)   = ?
[pid  5192] exit_group(0)               = ?
[pid  5192] +++ exited with 0 +++
[pid  5189] +++ exited with 0 +++
[pid  5190] +++ exited with 0 +++
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5192, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5189, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5194] <... pwritev resumed>)      = 103
[pid  5194] exit_group(0)               = ?
[pid  5194] +++ exited with 0 +++
[pid  5193] <... close resumed>)        = 0
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5194, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5072] <... openat resumed>)       = 3
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5069] <... openat resumed>)       = 3
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5072] <... ioctl resumed>)        = 0
[pid  5069] <... ioctl resumed>)        = 0
[pid  5072] close(3 <unfinished ...>
[pid  5069] close(3 <unfinished ...>
[pid  5072] <... close resumed>)        = 0
[pid  5069] <... close resumed>)        = 0
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5196 attached
 <unfinished ...>
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5070] <... openat resumed>)       = 3
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5197
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5196
./strace-static-x86_64: Process 5197 attached
[pid  5196] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5070] <... ioctl resumed>)        = 0
[pid  5070] close(3 <unfinished ...>
[pid  5196] <... set_robust_list resumed>) = 0
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5070] <... close resumed>)        = 0
[pid  5197] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5196] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5078] <... ioctl resumed>)        = 0
[pid  5197] <... set_robust_list resumed>) = 0
[pid  5197] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5197] setpgid(0, 0)               = 0
[pid  5197] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
./strace-static-x86_64: Process 5198 attached
[pid  5078] close(3 <unfinished ...>
[pid  5198] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5198
[pid  5078] <... close resumed>)        = 0
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5197] write(3, "1000", 4 <unfinished ...>
[pid  5196] <... prctl resumed>)        = 0
[pid  5198] <... set_robust_list resumed>) = 0
[pid  5197] <... write resumed>)        = 4
[pid  5197] close(3 <unfinished ...>
[pid  5198] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5196] setpgid(0, 0)               = 0
[pid  5198] <... prctl resumed>)        = 0
./strace-static-x86_64: Process 5199 attached
[pid  5198] setpgid(0, 0 <unfinished ...>
[pid  5197] <... close resumed>)        = 0
[pid  5196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5199] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5198] <... setpgid resumed>)      = 0
[pid  5197] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5199] <... set_robust_list resumed>) = 0
[pid  5198] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5197] <... openat resumed>)       = 3
[pid  5199] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5197] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5196] <... openat resumed>)       = 3
[pid  5199] <... prctl resumed>)        = 0
[pid  5198] <... openat resumed>)       = 3
[pid  5197] <... openat resumed>)       = 4
[pid  5199] setpgid(0, 0 <unfinished ...>
[pid  5198] write(3, "1000", 4 <unfinished ...>
[pid  5197] sendfile(4, 3, [88] <unfinished ...>
[pid  5199] <... setpgid resumed>)      = 0
[pid  5198] <... write resumed>)        = 4
[pid  5198] close(3 <unfinished ...>
[pid  5196] write(3, "1000", 4 <unfinished ...>
[pid  5193] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5199
[pid  5198] <... close resumed>)        = 0
[pid  5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5198] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5199] <... openat resumed>)       = 3
[pid  5198] <... openat resumed>)       = 3
[pid  5199] write(3, "1000", 4 <unfinished ...>
[pid  5198] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5199] <... write resumed>)        = 4
[pid  5196] <... write resumed>)        = 4
[pid  5199] close(3 <unfinished ...>
[pid  5198] <... openat resumed>)       = 4
[pid  5196] close(3 <unfinished ...>
[pid  5193] <... open resumed>)         = 5
[pid  5198] sendfile(4, 3, [88] <unfinished ...>
[pid  5196] <... close resumed>)        = 0
[pid  5193] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5199] <... close resumed>)        = 0
[pid  5196] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5199] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5199] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5196] <... openat resumed>)       = 3
[pid  5199] <... openat resumed>)       = 4
[pid  5199] sendfile(4, 3, [88] <unfinished ...>
[pid  5196] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5196] sendfile(4, 3, [88] <unfinished ...>
[pid  5193] <... pwritev resumed>)      = 103
[pid  5193] exit_group(0)               = ?
[pid  5193] +++ exited with 0 +++
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5076] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5076] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5076] close(3)                    = 0
[   70.630646][ T5195] syz-executor166 (5195): drop_caches: 1
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5200 attached
, child_tidptr=0x55555677f650) = 5200
[pid  5200] set_robust_list(0x55555677f660, 24) = 0
[pid  5200] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5200] setpgid(0, 0)               = 0
[pid  5200] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[   70.675425][ T5198] syz-executor166 (5198): drop_caches: 1
[   70.676746][ T5197] syz-executor166 (5197): drop_caches: 1
[   70.691733][ T5196] syz-executor166 (5196): drop_caches: 1
[pid  5200] write(3, "1000", 4)         = 4
[pid  5200] close(3)                    = 0
[pid  5200] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5200] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5200] sendfile(4, 3, [88] <unfinished ...>
[pid  5198] <... sendfile resumed> => [103], 15) = 15
[pid  5196] <... sendfile resumed> => [103], 15) = 15
[pid  5198] memfd_create("syzkaller", 0) = 5
[pid  5196] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5195] <... sendfile resumed> => [103], 15) = 15
[pid  5195] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5198] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5196] <... memfd_create resumed>) = 5
[pid  5198] <... mmap resumed>)         = 0x7f299346a000
[pid  5196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   70.769268][ T5199] syz-executor166 (5199): drop_caches: 1
[   70.783574][ T5198] syz-executor166 (5198): drop_caches: 1
[   70.785779][ T5195] syz-executor166 (5195): drop_caches: 1
[   70.810320][ T5196] syz-executor166 (5196): drop_caches: 1
[pid  5195] <... memfd_create resumed>) = 5
[pid  5195] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5198] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5196] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5195] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5197] <... sendfile resumed> => [103], 15) = 15
[pid  5197] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5198] <... write resumed>)        = 2097152
[pid  5197] <... memfd_create resumed>) = 5
[pid  5199] <... sendfile resumed> => [103], 15) = 15
[pid  5197] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5199] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5197] <... mmap resumed>)         = 0x7f299346a000
[pid  5196] <... write resumed>)        = 2097152
[pid  5198] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5196] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5199] <... memfd_create resumed>) = 5
[pid  5198] <... munmap resumed>)       = 0
[pid  5196] <... munmap resumed>)       = 0
[pid  5195] <... write resumed>)        = 2097152
[pid  5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5195] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5199] <... mmap resumed>)         = 0x7f299346a000
[pid  5195] <... munmap resumed>)       = 0
[   70.888040][ T5197] syz-executor166 (5197): drop_caches: 1
[   70.921497][ T5199] syz-executor166 (5199): drop_caches: 1
[   70.928317][ T5200] syz-executor166 (5200): drop_caches: 1
[pid  5198] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5196] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5195] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5198] <... openat resumed>)       = 6
[pid  5196] <... openat resumed>)       = 6
[pid  5195] <... openat resumed>)       = 6
[pid  5195] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5195] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5196] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5196] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5195] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5195] close(6)                    = 0
[pid  5198] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5196] <... ioctl resumed>)        = 0
[pid  5195] close(5 <unfinished ...>
[pid  5198] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5198] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5197] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5196] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5198] <... ioctl resumed>)        = 0
[pid  5196] close(6)                    = 0
[pid  5196] close(5 <unfinished ...>
[pid  5199] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5196] <... close resumed>)        = 0
[pid  5198] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5198] close(6)                    = 0
[pid  5198] close(5 <unfinished ...>
[pid  5195] <... close resumed>)        = 0
[pid  5199] <... write resumed>)        = 2097152
[pid  5197] <... write resumed>)        = 2097152
[pid  5195] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5196] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5195] <... open resumed>)         = 5
[pid  5195] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5197] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5196] <... open resumed>)         = 5
[pid  5196] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5199] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5197] <... munmap resumed>)       = 0
[pid  5197] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 6
[pid  5197] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5199] <... munmap resumed>)       = 0
[pid  5197] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5195] <... pwritev resumed>)      = 103
[pid  5195] exit_group(0)               = ?
[pid  5195] +++ exited with 0 +++
[pid  5197] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5195, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5197] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5196] <... pwritev resumed>)      = 103
[pid  5197] close(6)                    = 0
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5197] close(5 <unfinished ...>
[pid  5071] <... openat resumed>)       = 3
[pid  5196] exit_group(0 <unfinished ...>
[pid  5071] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5071] close(3)                    = 0
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5201 attached
 <unfinished ...>
[pid  5196] <... exit_group resumed>)   = ?
[pid  5201] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5201
[pid  5201] <... set_robust_list resumed>) = 0
[pid  5201] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5201] setpgid(0, 0)               = 0
[pid  5199] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5201] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5199] <... openat resumed>)       = 6
[pid  5201] <... openat resumed>)       = 3
[pid  5199] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5199] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5199] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5199] close(6 <unfinished ...>
[pid  5201] write(3, "1000", 4 <unfinished ...>
[pid  5199] <... close resumed>)        = 0
[pid  5201] <... write resumed>)        = 4
[pid  5199] close(5 <unfinished ...>
[pid  5198] <... close resumed>)        = 0
[pid  5197] <... close resumed>)        = 0
[pid  5196] +++ exited with 0 +++
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5196, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5198] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5201] close(3)                    = 0
[pid  5201] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5198] <... open resumed>)         = 5
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5201] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5201] sendfile(4, 3, [88] <unfinished ...>
[pid  5072] <... openat resumed>)       = 3
[pid  5197] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5197] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5198] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5072] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5072] close(3 <unfinished ...>
[pid  5200] <... sendfile resumed> => [103], 15) = 15
[pid  5072] <... close resumed>)        = 0
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5202 attached
 <unfinished ...>
[pid  5200] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5202
[pid  5202] set_robust_list(0x55555677f660, 24) = 0
[pid  5202] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5200] <... memfd_create resumed>) = 5
[pid  5202] <... prctl resumed>)        = 0
[pid  5200] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5198] <... pwritev resumed>)      = 103
[pid  5197] <... pwritev resumed>)      = 103
[pid  5202] setpgid(0, 0 <unfinished ...>
[pid  5200] <... mmap resumed>)         = 0x7f299346a000
[pid  5199] <... close resumed>)        = 0
[pid  5198] exit_group(0 <unfinished ...>
[pid  5202] <... setpgid resumed>)      = 0
[pid  5197] exit_group(0 <unfinished ...>
[pid  5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5198] <... exit_group resumed>)   = ?
[pid  5197] <... exit_group resumed>)   = ?
[pid  5202] <... openat resumed>)       = 3
[pid  5197] +++ exited with 0 +++
[pid  5198] +++ exited with 0 +++
[   71.102989][ T5200] syz-executor166 (5200): drop_caches: 1
[pid  5202] write(3, "1000", 4 <unfinished ...>
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5198, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5197, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5070] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5202] <... write resumed>)        = 4
[pid  5199] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5070] <... restart_syscall resumed>) = 0
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5202] close(3 <unfinished ...>
[pid  5069] <... openat resumed>)       = 3
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5202] <... close resumed>)        = 0
[pid  5069] <... ioctl resumed>)        = 0
[pid  5202] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5070] <... openat resumed>)       = 3
[pid  5069] close(3)                    = 0
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5199] <... open resumed>)         = 5
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5199] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5070] <... ioctl resumed>)        = 0
[pid  5070] close(3 <unfinished ...>
[pid  5202] <... openat resumed>)       = 3
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5203
[pid  5070] <... close resumed>)        = 0
./strace-static-x86_64: Process 5203 attached
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5203] set_robust_list(0x55555677f660, 24) = 0
[pid  5202] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5204
[pid  5202] <... openat resumed>)       = 4
./strace-static-x86_64: Process 5204 attached
[pid  5204] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5199] <... pwritev resumed>)      = 103
[pid  5204] <... set_robust_list resumed>) = 0
[pid  5199] exit_group(0)               = ?
[pid  5202] sendfile(4, 3, [88] <unfinished ...>
[pid  5199] +++ exited with 0 +++
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5200] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5203] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5078] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5203] <... prctl resumed>)        = 0
[pid  5204] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5204] setpgid(0, 0)               = 0
[pid  5203] setpgid(0, 0 <unfinished ...>
[pid  5078] close(3 <unfinished ...>
[pid  5204] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5203] <... setpgid resumed>)      = 0
[pid  5078] <... close resumed>)        = 0
[pid  5204] <... openat resumed>)       = 3
[pid  5203] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5204] write(3, "1000", 4)         = 4
[pid  5204] close(3)                    = 0
[pid  5204] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5204] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5204] sendfile(4, 3, [88]./strace-static-x86_64: Process 5205 attached
 <unfinished ...>
[pid  5205] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5203] <... openat resumed>)       = 3
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5205
[pid  5205] <... set_robust_list resumed>) = 0
[pid  5203] write(3, "1000", 4)         = 4
[pid  5205] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5203] close(3)                    = 0
[pid  5203] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5205] <... prctl resumed>)        = 0
[pid  5203] <... openat resumed>)       = 3
[pid  5203] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5205] setpgid(0, 0 <unfinished ...>
[pid  5203] <... openat resumed>)       = 4
[pid  5203] sendfile(4, 3, [88] <unfinished ...>
[pid  5205] <... setpgid resumed>)      = 0
[pid  5205] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5205] write(3, "1000", 4)         = 4
[pid  5205] close(3)                    = 0
[pid  5200] <... write resumed>)        = 2097152
[pid  5205] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5200] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5205] <... openat resumed>)       = 3
[pid  5200] <... munmap resumed>)       = 0
[pid  5205] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5200] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5205] <... openat resumed>)       = 4
[pid  5200] <... openat resumed>)       = 6
[pid  5200] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5205] sendfile(4, 3, [88] <unfinished ...>
[pid  5200] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5200] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5200] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[   71.263400][ T5201] syz-executor166 (5201): drop_caches: 1
[   71.283269][ T5202] syz-executor166 (5202): drop_caches: 1
[pid  5200] close(6)                    = 0
[pid  5200] close(5)                    = 0
[pid  5200] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5200] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452) = 103
[pid  5200] exit_group(0)               = ?
[   71.362920][ T5203] syz-executor166 (5203): drop_caches: 1
[   71.381544][ T5204] syz-executor166 (5204): drop_caches: 1
[   71.397027][ T5205] syz-executor166 (5205): drop_caches: 1
[pid  5200] +++ exited with 0 +++
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5200, si_uid=0, si_status=0, si_utime=0, si_stime=18 /* 0.18 s */} ---
[pid  5202] <... sendfile resumed> => [103], 15) = 15
[pid  5202] memfd_create("syzkaller", 0) = 5
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  5202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5076] <... openat resumed>)       = 3
[pid  5076] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5076] close(3 <unfinished ...>
[pid  5201] <... sendfile resumed> => [103], 15) = 15
[pid  5201] memfd_create("syzkaller", 0) = 5
[pid  5076] <... close resumed>)        = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5201] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5206
[   71.418764][ T5202] syz-executor166 (5202): drop_caches: 1
[   71.430527][ T5201] syz-executor166 (5201): drop_caches: 1
[pid  5202] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152./strace-static-x86_64: Process 5206 attached
 <unfinished ...>
[pid  5206] set_robust_list(0x55555677f660, 24) = 0
[pid  5206] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5206] setpgid(0, 0)               = 0
[pid  5206] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5206] write(3, "1000", 4)         = 4
[pid  5206] close(3)                    = 0
[pid  5206] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5206] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5206] sendfile(4, 3, [88] <unfinished ...>
[pid  5203] <... sendfile resumed> => [103], 15) = 15
[pid  5202] <... write resumed>)        = 2097152
[pid  5203] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5202] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5203] <... memfd_create resumed>) = 5
[pid  5202] <... munmap resumed>)       = 0
[pid  5203] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5202] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5203] <... mmap resumed>)         = 0x7f299346a000
[pid  5203] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5202] <... openat resumed>)       = 6
[pid  5201] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5202] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5202] ioctl(6, LOOP_CLR_FD)       = 0
[   71.485870][ T5203] syz-executor166 (5203): drop_caches: 1
[pid  5202] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5205] <... sendfile resumed> => [103], 15) = 15
[pid  5202] close(6)                    = 0
[pid  5202] close(5 <unfinished ...>
[pid  5205] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5204] <... sendfile resumed> => [103], 15) = 15
[pid  5205] <... memfd_create resumed>) = 5
[pid  5204] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5204] <... memfd_create resumed>) = 5
[pid  5205] <... mmap resumed>)         = 0x7f299346a000
[pid  5204] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5202] <... close resumed>)        = 0
[pid  5201] <... write resumed>)        = 2097152
[pid  5203] <... write resumed>)        = 2097152
[pid  5201] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5205] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5201] <... munmap resumed>)       = 0
[pid  5203] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5202] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[   71.535134][ T5205] syz-executor166 (5205): drop_caches: 1
[   71.549694][ T5204] syz-executor166 (5204): drop_caches: 1
[   71.556090][ T5206] syz-executor166 (5206): drop_caches: 1
[pid  5201] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5203] <... munmap resumed>)       = 0
[pid  5202] <... open resumed>)         = 5
[pid  5201] <... openat resumed>)       = 6
[pid  5205] <... write resumed>)        = 2097152
[pid  5201] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5205] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5204] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5202] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5201] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5201] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5203] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5201] <... ioctl resumed>)        = 0
[pid  5203] <... openat resumed>)       = 6
[pid  5205] <... munmap resumed>)       = 0
[pid  5203] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5202] <... pwritev resumed>)      = 103
[pid  5205] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5203] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5202] exit_group(0 <unfinished ...>
[pid  5201] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5205] <... openat resumed>)       = 6
[pid  5203] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5202] <... exit_group resumed>)   = ?
[pid  5201] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5205] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5203] <... ioctl resumed>)        = 0
[pid  5202] +++ exited with 0 +++
[pid  5201] close(6)                    = 0
[pid  5205] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5201] close(5 <unfinished ...>
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5205] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5203] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5072] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5203] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5203] close(6 <unfinished ...>
[pid  5072] <... restart_syscall resumed>) = 0
[pid  5203] <... close resumed>)        = 0
[pid  5205] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5203] close(5 <unfinished ...>
[pid  5205] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5204] <... write resumed>)        = 2097152
[pid  5201] <... close resumed>)        = 0
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5205] close(6 <unfinished ...>
[pid  5204] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5201] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5072] <... openat resumed>)       = 3
[pid  5205] <... close resumed>)        = 0
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5205] close(5 <unfinished ...>
[pid  5072] <... ioctl resumed>)        = 0
[pid  5072] close(3)                    = 0
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555677f650) = 5207
[pid  5201] <... open resumed>)         = 5
./strace-static-x86_64: Process 5207 attached
[pid  5207] set_robust_list(0x55555677f660, 24) = 0
[pid  5207] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5207] setpgid(0, 0)               = 0
[pid  5207] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5204] <... munmap resumed>)       = 0
[pid  5201] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5204] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 6
[pid  5204] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5204] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5201] <... pwritev resumed>)      = 103
[pid  5201] exit_group(0)               = ?
[pid  5207] <... openat resumed>)       = 3
[pid  5207] write(3, "1000", 4 <unfinished ...>
[pid  5205] <... close resumed>)        = 0
[pid  5204] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5201] +++ exited with 0 +++
[pid  5207] <... write resumed>)        = 4
[pid  5204] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5207] close(3 <unfinished ...>
[pid  5204] close(6 <unfinished ...>
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5201, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} ---
[pid  5207] <... close resumed>)        = 0
[pid  5204] <... close resumed>)        = 0
[pid  5207] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5204] close(5 <unfinished ...>
[pid  5207] <... openat resumed>)       = 3
[pid  5207] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5207] sendfile(4, 3, [88] <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  5071] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5071] close(3 <unfinished ...>
[pid  5204] <... close resumed>)        = 0
[pid  5071] <... close resumed>)        = 0
[pid  5204] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5208 attached
 <unfinished ...>
[pid  5205] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5203] <... close resumed>)        = 0
[pid  5203] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5208] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5206] <... sendfile resumed> => [103], 15) = 15
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5208
[pid  5208] <... set_robust_list resumed>) = 0
[pid  5208] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5205] <... open resumed>)         = 5
[pid  5204] <... open resumed>)         = 5
[pid  5203] <... open resumed>)         = 5
[pid  5208] <... prctl resumed>)        = 0
[pid  5205] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5204] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5203] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5208] setpgid(0, 0)               = 0
[pid  5208] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5208] write(3, "1000", 4)         = 4
[pid  5208] close(3)                    = 0
[pid  5208] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5206] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5205] <... pwritev resumed>)      = 103
[pid  5204] <... pwritev resumed>)      = 103
[pid  5203] <... pwritev resumed>)      = 103
[pid  5205] exit_group(0 <unfinished ...>
[pid  5204] exit_group(0 <unfinished ...>
[pid  5203] exit_group(0 <unfinished ...>
[pid  5208] <... openat resumed>)       = 3
[pid  5205] <... exit_group resumed>)   = ?
[pid  5204] <... exit_group resumed>)   = ?
[pid  5203] <... exit_group resumed>)   = ?
[pid  5206] <... memfd_create resumed>) = 5
[pid  5205] +++ exited with 0 +++
[pid  5204] +++ exited with 0 +++
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} ---
[pid  5078] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5203] +++ exited with 0 +++
[pid  5078] <... ioctl resumed>)        = 0
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5204, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5206] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5078] close(3 <unfinished ...>
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5203, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5206] <... mmap resumed>)         = 0x7f299346a000
[pid  5078] <... close resumed>)        = 0
[pid  5208] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5069] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5209 attached
 <unfinished ...>
[pid  5069] <... restart_syscall resumed>) = 0
[pid  5209] set_robust_list(0x55555677f660, 24) = 0
[pid  5208] <... openat resumed>)       = 4
[pid  5209] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5209] <... prctl resumed>)        = 0
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5209
[pid  5070] <... openat resumed>)       = 3
[pid  5069] <... openat resumed>)       = 3
[pid  5209] setpgid(0, 0 <unfinished ...>
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5209] <... setpgid resumed>)      = 0
[pid  5070] <... ioctl resumed>)        = 0
[pid  5069] <... ioctl resumed>)        = 0
[pid  5209] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5070] close(3 <unfinished ...>
[pid  5069] close(3 <unfinished ...>
[pid  5209] <... openat resumed>)       = 3
[pid  5209] write(3, "1000", 4 <unfinished ...>
[pid  5069] <... close resumed>)        = 0
[pid  5209] <... write resumed>)        = 4
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5209] close(3 <unfinished ...>
[pid  5208] sendfile(4, 3, [88] <unfinished ...>
[pid  5070] <... close resumed>)        = 0
./strace-static-x86_64: Process 5210 attached
[pid  5209] <... close resumed>)        = 0
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5210
[pid  5210] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5209] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5209] <... openat resumed>)       = 3
[pid  5209] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5209] sendfile(4, 3, [88]./strace-static-x86_64: Process 5211 attached
 <unfinished ...>
[pid  5210] <... set_robust_list resumed>) = 0
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5211
[pid  5210] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5211] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5210] <... prctl resumed>)        = 0
[pid  5210] setpgid(0, 0)               = 0
[pid  5210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5211] <... set_robust_list resumed>) = 0
[pid  5210] write(3, "1000", 4)         = 4
[   71.701636][ T5206] syz-executor166 (5206): drop_caches: 1
[pid  5211] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5210] close(3)                    = 0
[pid  5211] setpgid(0, 0 <unfinished ...>
[pid  5210] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5211] <... setpgid resumed>)      = 0
[pid  5210] <... openat resumed>)       = 3
[pid  5206] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5211] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5210] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5211] <... openat resumed>)       = 3
[pid  5210] sendfile(4, 3, [88] <unfinished ...>
[pid  5211] write(3, "1000", 4)         = 4
[   71.760505][ T5207] syz-executor166 (5207): drop_caches: 1
[pid  5211] close(3)                    = 0
[pid  5211] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5211] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5211] sendfile(4, 3, [88] <unfinished ...>
[pid  5206] <... write resumed>)        = 2097152
[pid  5206] munmap(0x7f299346a000, 138412032) = 0
[pid  5206] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5206] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5206] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5206] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5206] close(6 <unfinished ...>
[pid  5207] <... sendfile resumed> => [103], 15) = 15
[pid  5206] <... close resumed>)        = 0
[   71.881585][ T5208] syz-executor166 (5208): drop_caches: 1
[   71.895873][ T5207] syz-executor166 (5207): drop_caches: 1
[   71.895883][ T5209] syz-executor166 (5209): drop_caches: 1
[   71.910920][ T5210] syz-executor166 (5210): drop_caches: 1
[pid  5207] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5206] close(5 <unfinished ...>
[pid  5207] <... memfd_create resumed>) = 5
[pid  5206] <... close resumed>)        = 0
[pid  5207] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5206] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5207] <... mmap resumed>)         = 0x7f299346a000
[pid  5206] <... open resumed>)         = 5
[   71.944026][ T5211] syz-executor166 (5211): drop_caches: 1
[pid  5206] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5207] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5206] <... pwritev resumed>)      = 103
[pid  5206] exit_group(0)               = ?
[pid  5206] +++ exited with 0 +++
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5206, si_uid=0, si_status=0, si_utime=0, si_stime=7 /* 0.07 s */} ---
[pid  5076] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5076] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5076] close(3)                    = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555677f650) = 5212
./strace-static-x86_64: Process 5212 attached
[pid  5212] set_robust_list(0x55555677f660, 24) = 0
[pid  5212] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[   72.056522][ T5208] syz-executor166 (5208): drop_caches: 1
[   72.074464][ T5210] syz-executor166 (5210): drop_caches: 1
[pid  5212] setpgid(0, 0 <unfinished ...>
[pid  5208] <... sendfile resumed> => [103], 15) = 15
[pid  5212] <... setpgid resumed>)      = 0
[pid  5210] <... sendfile resumed> => [103], 15) = 15
[pid  5209] <... sendfile resumed> => [103], 15) = 15
[pid  5208] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5207] <... write resumed>)        = 2097152
[pid  5212] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5212] write(3, "1000", 4)         = 4
[pid  5211] <... sendfile resumed> => [103], 15) = 15
[pid  5210] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5208] <... memfd_create resumed>) = 5
[pid  5207] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5212] close(3 <unfinished ...>
[pid  5210] <... memfd_create resumed>) = 5
[pid  5208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5212] <... close resumed>)        = 0
[pid  5212] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5212] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5212] sendfile(4, 3, [88] <unfinished ...>
[pid  5211] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5209] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5208] <... mmap resumed>)         = 0x7f299346a000
[pid  5207] <... munmap resumed>)       = 0
[pid  5210] <... mmap resumed>)         = 0x7f299346a000
[pid  5211] <... memfd_create resumed>) = 5
[pid  5209] <... memfd_create resumed>) = 5
[pid  5208] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5207] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5211] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5209] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5207] <... openat resumed>)       = 6
[pid  5211] <... mmap resumed>)         = 0x7f299346a000
[pid  5209] <... mmap resumed>)         = 0x7f299346a000
[   72.101516][ T5209] syz-executor166 (5209): drop_caches: 1
[   72.104581][ T5211] syz-executor166 (5211): drop_caches: 1
[pid  5207] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5207] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5207] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5207] close(6)                    = 0
[pid  5207] close(5 <unfinished ...>
[pid  5210] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5209] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5211] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5208] <... write resumed>)        = 2097152
[pid  5207] <... close resumed>)        = 0
[pid  5207] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5207] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5208] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5210] <... write resumed>)        = 2097152
[pid  5208] <... munmap resumed>)       = 0
[pid  5210] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5208] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5207] <... pwritev resumed>)      = 103
[pid  5208] <... openat resumed>)       = 6
[pid  5207] exit_group(0 <unfinished ...>
[pid  5208] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5207] <... exit_group resumed>)   = ?
[pid  5210] <... munmap resumed>)       = 0
[pid  5208] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5207] +++ exited with 0 +++
[pid  5210] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5208] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5207, si_uid=0, si_status=0, si_utime=0, si_stime=14 /* 0.14 s */} ---
[pid  5210] <... openat resumed>)       = 6
[pid  5208] <... ioctl resumed>)        = 0
[pid  5210] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5210] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5208] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5210] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5208] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5072] <... openat resumed>)       = 3
[   72.184263][ T5212] syz-executor166 (5212): drop_caches: 1
[pid  5211] <... write resumed>)        = 2097152
[pid  5210] <... ioctl resumed>)        = 0
[pid  5208] close(6)                    = 0
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5208] close(5 <unfinished ...>
[pid  5072] <... ioctl resumed>)        = 0
[pid  5072] close(3 <unfinished ...>
[pid  5210] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5072] <... close resumed>)        = 0
[pid  5210] close(6 <unfinished ...>
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5210] <... close resumed>)        = 0
./strace-static-x86_64: Process 5213 attached
[pid  5210] close(5 <unfinished ...>
[pid  5209] <... write resumed>)        = 2097152
[pid  5213] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5211] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5208] <... close resumed>)        = 0
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5213
[pid  5213] <... set_robust_list resumed>) = 0
[pid  5209] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5213] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5209] <... munmap resumed>)       = 0
[pid  5213] <... prctl resumed>)        = 0
[pid  5213] setpgid(0, 0)               = 0
[pid  5213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5211] <... munmap resumed>)       = 0
[pid  5208] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5209] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6
[pid  5209] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5208] <... open resumed>)         = 5
[pid  5213] <... openat resumed>)       = 3
[pid  5209] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5208] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5213] write(3, "1000", 4 <unfinished ...>
[pid  5210] <... close resumed>)        = 0
[pid  5209] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5213] <... write resumed>)        = 4
[pid  5210] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5209] <... ioctl resumed>)        = 0
[pid  5213] close(3 <unfinished ...>
[pid  5211] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5213] <... close resumed>)        = 0
[pid  5210] <... open resumed>)         = 5
[pid  5213] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5211] <... openat resumed>)       = 6
[pid  5210] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5208] <... pwritev resumed>)      = 103
[pid  5211] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5209] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5208] exit_group(0 <unfinished ...>
[pid  5213] <... openat resumed>)       = 3
[pid  5209] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5208] <... exit_group resumed>)   = ?
[pid  5213] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5209] close(6 <unfinished ...>
[pid  5208] +++ exited with 0 +++
[pid  5213] <... openat resumed>)       = 4
[pid  5209] <... close resumed>)        = 0
[pid  5213] sendfile(4, 3, [88] <unfinished ...>
[pid  5209] close(5 <unfinished ...>
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5208, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} ---
[pid  5071] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  5211] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5210] <... pwritev resumed>)      = 103
[pid  5211] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5210] exit_group(0 <unfinished ...>
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5211] <... ioctl resumed>)        = 0
[pid  5210] <... exit_group resumed>)   = ?
[pid  5071] <... openat resumed>)       = 3
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5210] +++ exited with 0 +++
[pid  5211] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5071] <... ioctl resumed>)        = 0
[pid  5211] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5071] close(3 <unfinished ...>
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5210, si_uid=0, si_status=0, si_utime=0, si_stime=8 /* 0.08 s */} ---
[pid  5211] close(6 <unfinished ...>
[pid  5071] <... close resumed>)        = 0
[pid  5069] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5211] <... close resumed>)        = 0
[pid  5211] close(5 <unfinished ...>
[pid  5069] <... restart_syscall resumed>) = 0
[pid  5211] <... close resumed>)        = 0
[pid  5211] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5211] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5069] <... openat resumed>)       = 3
[pid  5069] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5211] <... pwritev resumed>)      = 103
[pid  5211] exit_group(0)               = ?
./strace-static-x86_64: Process 5214 attached
[pid  5211] +++ exited with 0 +++
[pid  5069] <... ioctl resumed>)        = 0
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5211, si_uid=0, si_status=0, si_utime=0, si_stime=12 /* 0.12 s */} ---
[pid  5069] close(3 <unfinished ...>
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5214
[pid  5214] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5069] <... close resumed>)        = 0
[pid  5214] <... set_robust_list resumed>) = 0
[pid  5212] <... sendfile resumed> => [103], 15) = 15
[pid  5209] <... close resumed>)        = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 5215 attached
) = 3
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5069] <... clone resumed>, child_tidptr=0x55555677f650) = 5215
[pid  5215] set_robust_list(0x55555677f660, 24) = 0
[pid  5214] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5070] <... ioctl resumed>)        = 0
[pid  5214] <... prctl resumed>)        = 0
[pid  5215] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5214] setpgid(0, 0 <unfinished ...>
[pid  5070] close(3 <unfinished ...>
[pid  5215] setpgid(0, 0 <unfinished ...>
[pid  5214] <... setpgid resumed>)      = 0
[pid  5070] <... close resumed>)        = 0
[pid  5215] <... setpgid resumed>)      = 0
[pid  5215] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5209] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5215] <... openat resumed>)       = 3
[pid  5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5209] <... open resumed>)         = 5
[pid  5209] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5214] <... openat resumed>)       = 3
[pid  5215] write(3, "1000", 4)         = 4
[pid  5214] write(3, "1000", 4 <unfinished ...>
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5209] <... pwritev resumed>)      = 103
[pid  5209] exit_group(0)               = ?
./strace-static-x86_64: Process 5216 attached
[pid  5215] close(3 <unfinished ...>
[pid  5214] <... write resumed>)        = 4
[pid  5209] +++ exited with 0 +++
[pid  5216] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5215] <... close resumed>)        = 0
[pid  5214] close(3 <unfinished ...>
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5209, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=12 /* 0.12 s */} ---
[pid  5214] <... close resumed>)        = 0
[pid  5214] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5216] <... set_robust_list resumed>) = 0
[pid  5215] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5214] <... openat resumed>)       = 3
[pid  5078] <... openat resumed>)       = 3
[pid  5214] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5216] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5212] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5078] <... ioctl resumed>)        = 0
[pid  5216] <... prctl resumed>)        = 0
[pid  5215] <... openat resumed>)       = 3
[pid  5078] close(3 <unfinished ...>
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5216
[pid  5216] setpgid(0, 0 <unfinished ...>
[pid  5212] <... memfd_create resumed>) = 5
[pid  5078] <... close resumed>)        = 0
[pid  5216] <... setpgid resumed>)      = 0
[pid  5215] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5214] <... openat resumed>)       = 4
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5212] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5215] <... openat resumed>)       = 4
[pid  5214] sendfile(4, 3, [88] <unfinished ...>
[pid  5215] sendfile(4, 3, [88] <unfinished ...>
[pid  5216] <... openat resumed>)       = 3
[   72.329878][ T5212] syz-executor166 (5212): drop_caches: 1
[pid  5216] write(3, "1000", 4./strace-static-x86_64: Process 5217 attached
)         = 4
[pid  5216] close(3)                    = 0
[pid  5217] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5216] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5217] <... set_robust_list resumed>) = 0
[pid  5217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5216] <... openat resumed>)       = 3
[pid  5217] setpgid(0, 0)               = 0
[pid  5216] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5217
[pid  5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5216] <... openat resumed>)       = 4
[pid  5217] <... openat resumed>)       = 3
[pid  5216] sendfile(4, 3, [88] <unfinished ...>
[pid  5217] write(3, "1000", 4)         = 4
[pid  5217] close(3)                    = 0
[pid  5217] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5217] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5217] sendfile(4, 3, [88] <unfinished ...>
[pid  5212] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152
[pid  5212] munmap(0x7f299346a000, 138412032) = 0
[pid  5212] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5212] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5212] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5212] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5212] close(6)                    = 0
[pid  5212] close(5)                    = 0
[pid  5212] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5212] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452) = 103
[pid  5212] exit_group(0)               = ?
[pid  5212] +++ exited with 0 +++
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5212, si_uid=0, si_status=0, si_utime=0, si_stime=16 /* 0.16 s */} ---
[pid  5076] restart_syscall(<... resuming interrupted clone ...>) = 0
[   72.477992][ T5213] syz-executor166 (5213): drop_caches: 1
[   72.488183][ T5217] syz-executor166 (5217): drop_caches: 1
[   72.497166][ T5214] syz-executor166 (5214): drop_caches: 1
[   72.511005][ T5215] syz-executor166 (5215): drop_caches: 1
[   72.514119][ T5216] syz-executor166 (5216): drop_caches: 1
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5076] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5076] close(3)                    = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5218 attached
 <unfinished ...>
[pid  5218] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5218
[pid  5218] <... set_robust_list resumed>) = 0
[pid  5214] <... sendfile resumed> => [103], 15) = 15
[pid  5218] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5213] <... sendfile resumed> => [103], 15) = 15
[pid  5218] <... prctl resumed>)        = 0
[pid  5218] setpgid(0, 0)               = 0
[pid  5217] <... sendfile resumed> => [103], 15) = 15
[pid  5216] <... sendfile resumed> => [103], 15) = 15
[pid  5214] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5213] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5217] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5216] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5214] <... memfd_create resumed>) = 5
[pid  5213] <... memfd_create resumed>) = 5
[pid  5218] <... openat resumed>)       = 3
[pid  5218] write(3, "1000", 4)         = 4
[pid  5213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5218] close(3)                    = 0
[pid  5214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5218] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5214] <... mmap resumed>)         = 0x7f299346a000
[pid  5213] <... mmap resumed>)         = 0x7f299346a000
[pid  5218] <... openat resumed>)       = 3
[pid  5217] <... memfd_create resumed>) = 5
[pid  5216] <... memfd_create resumed>) = 5
[pid  5215] <... sendfile resumed> => [103], 15) = 15
[pid  5218] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5218] <... openat resumed>)       = 4
[pid  5218] sendfile(4, 3, [88] <unfinished ...>
[pid  5217] <... mmap resumed>)         = 0x7f299346a000
[pid  5216] <... mmap resumed>)         = 0x7f299346a000
[pid  5215] memfd_create("syzkaller", 0) = 5
[pid  5215] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[   72.607705][ T5217] syz-executor166 (5217): drop_caches: 1
[   72.613246][ T5214] syz-executor166 (5214): drop_caches: 1
[   72.622510][ T5213] syz-executor166 (5213): drop_caches: 1
[   72.631175][ T5216] syz-executor166 (5216): drop_caches: 1
[   72.640579][ T5215] syz-executor166 (5215): drop_caches: 1
[pid  5213] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5214] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5216] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5217] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5215] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5214] <... write resumed>)        = 2097152
[pid  5213] <... write resumed>)        = 2097152
[pid  5213] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5214] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5213] <... munmap resumed>)       = 0
[pid  5213] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 6
[pid  5213] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5213] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5217] <... write resumed>)        = 2097152
[pid  5216] <... write resumed>)        = 2097152
[pid  5215] <... write resumed>)        = 2097152
[pid  5214] <... munmap resumed>)       = 0
[pid  5214] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5213] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5213] close(6)                    = 0
[pid  5213] close(5 <unfinished ...>
[pid  5217] munmap(0x7f299346a000, 138412032) = 0
[pid  5214] <... openat resumed>)       = 6
[pid  5214] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5214] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5216] munmap(0x7f299346a000, 138412032) = 0
[pid  5215] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5214] <... ioctl resumed>)        = 0
[pid  5213] <... close resumed>)        = 0
[pid  5214] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5217] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 6
[pid  5217] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5217] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5216] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5215] <... munmap resumed>)       = 0
[pid  5216] <... openat resumed>)       = 6
[pid  5215] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5216] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5215] <... openat resumed>)       = 6
[pid  5216] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5215] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5217] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5216] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5215] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5217] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5216] <... ioctl resumed>)        = 0
[   72.741054][ T5218] syz-executor166 (5218): drop_caches: 1
[pid  5215] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5217] close(6 <unfinished ...>
[pid  5215] <... ioctl resumed>)        = 0
[pid  5214] close(6)                    = 0
[pid  5217] <... close resumed>)        = 0
[pid  5217] close(5 <unfinished ...>
[pid  5216] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5215] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5216] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5216] close(6 <unfinished ...>
[pid  5215] close(6 <unfinished ...>
[pid  5216] <... close resumed>)        = 0
[pid  5215] <... close resumed>)        = 0
[pid  5215] close(5 <unfinished ...>
[pid  5216] close(5 <unfinished ...>
[pid  5214] close(5 <unfinished ...>
[pid  5216] <... close resumed>)        = 0
[pid  5213] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5213] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5217] <... close resumed>)        = 0
[pid  5218] <... sendfile resumed> => [103], 15) = 15
[pid  5216] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5215] <... close resumed>)        = 0
[pid  5214] <... close resumed>)        = 0
[pid  5213] <... pwritev resumed>)      = 103
[pid  5213] exit_group(0)               = ?
[pid  5213] +++ exited with 0 +++
[pid  5072] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5213, si_uid=0, si_status=0, si_utime=0, si_stime=13 /* 0.13 s */} ---
[pid  5217] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5214] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5072] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5216] <... open resumed>)         = 5
[pid  5072] <... openat resumed>)       = 3
[pid  5218] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5214] <... open resumed>)         = 5
[pid  5072] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5214] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5072] <... ioctl resumed>)        = 0
[pid  5072] close(3 <unfinished ...>
[pid  5215] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000 <unfinished ...>
[pid  5072] <... close resumed>)        = 0
[pid  5216] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5215] <... open resumed>)         = 5
[pid  5072] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5215] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5217] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452 <unfinished ...>
[pid  5218] <... memfd_create resumed>) = 5
[pid  5218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5217] <... pwritev resumed>)      = 103
[pid  5216] <... pwritev resumed>)      = 103
[pid  5215] <... pwritev resumed>)      = 103
[pid  5214] <... pwritev resumed>)      = 103
[   72.813820][ T5218] syz-executor166 (5218): drop_caches: 1
[pid  5217] exit_group(0./strace-static-x86_64: Process 5219 attached
 <unfinished ...>
[pid  5216] exit_group(0 <unfinished ...>
[pid  5215] exit_group(0 <unfinished ...>
[pid  5214] exit_group(0 <unfinished ...>
[pid  5072] <... clone resumed>, child_tidptr=0x55555677f650) = 5219
[pid  5217] <... exit_group resumed>)   = ?
[pid  5215] <... exit_group resumed>)   = ?
[pid  5217] +++ exited with 0 +++
[pid  5215] +++ exited with 0 +++
[pid  5069] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5215, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5078] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5217, si_uid=0, si_status=0, si_utime=0, si_stime=10 /* 0.10 s */} ---
[pid  5219] set_robust_list(0x55555677f660, 24) = 0
[pid  5216] <... exit_group resumed>)   = ?
[pid  5214] <... exit_group resumed>)   = ?
[pid  5078] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  5069] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5078] <... restart_syscall resumed>) = 0
[pid  5069] <... openat resumed>)       = 3
[pid  5069] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5069] close(3)                    = 0
[pid  5069] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55555677f650) = 5220
./strace-static-x86_64: Process 5220 attached
[pid  5219] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5218] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5216] +++ exited with 0 +++
[pid  5214] +++ exited with 0 +++
[pid  5071] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5214, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=9 /* 0.09 s */} ---
[pid  5070] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5216, si_uid=0, si_status=0, si_utime=0, si_stime=9 /* 0.09 s */} ---
[pid  5078] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  5219] <... prctl resumed>)        = 0
[pid  5219] setpgid(0, 0 <unfinished ...>
[pid  5078] <... openat resumed>)       = 3
[pid  5219] <... setpgid resumed>)      = 0
[pid  5071] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5220] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5219] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5078] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5071] <... openat resumed>)       = 3
[pid  5070] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5071] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5078] <... ioctl resumed>)        = 0
[pid  5078] close(3 <unfinished ...>
[pid  5071] <... ioctl resumed>)        = 0
[pid  5070] <... openat resumed>)       = 3
[pid  5070] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  5071] close(3 <unfinished ...>
[pid  5078] <... close resumed>)        = 0
[pid  5220] <... set_robust_list resumed>) = 0
[pid  5070] <... ioctl resumed>)        = 0
[pid  5220] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5078] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5071] <... close resumed>)        = 0
[pid  5070] close(3)                    = 0
[pid  5220] <... prctl resumed>)        = 0
[pid  5070] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5071] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  5220] setpgid(0, 0)               = 0
[pid  5220] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5220] write(3, "1000", 4)         = 4
[pid  5220] close(3)                    = 0
[pid  5220] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5220] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5220] sendfile(4, 3, [88] <unfinished ...>
[pid  5071] <... clone resumed>, child_tidptr=0x55555677f650) = 5222
./strace-static-x86_64: Process 5221 attached
[pid  5078] <... clone resumed>, child_tidptr=0x55555677f650) = 5221
[pid  5070] <... clone resumed>, child_tidptr=0x55555677f650) = 5223
[pid  5221] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5219] <... openat resumed>)       = 3
./strace-static-x86_64: Process 5222 attached
./strace-static-x86_64: Process 5223 attached
[pid  5221] <... set_robust_list resumed>) = 0
[pid  5219] write(3, "1000", 4 <unfinished ...>
[pid  5222] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5219] <... write resumed>)        = 4
[pid  5223] set_robust_list(0x55555677f660, 24 <unfinished ...>
[pid  5219] close(3 <unfinished ...>
[pid  5222] <... set_robust_list resumed>) = 0
[pid  5222] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5219] <... close resumed>)        = 0
[pid  5223] <... set_robust_list resumed>) = 0
[pid  5223] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5222] <... prctl resumed>)        = 0
[pid  5223] <... prctl resumed>)        = 0
[pid  5221] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  5222] setpgid(0, 0 <unfinished ...>
[pid  5223] setpgid(0, 0 <unfinished ...>
[pid  5222] <... setpgid resumed>)      = 0
[pid  5223] <... setpgid resumed>)      = 0
[pid  5219] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5221] <... prctl resumed>)        = 0
[pid  5221] setpgid(0, 0 <unfinished ...>
[pid  5222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5223] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5222] <... openat resumed>)       = 3
[pid  5223] write(3, "1000", 4 <unfinished ...>
[pid  5222] write(3, "1000", 4)         = 4
[pid  5222] close(3)                    = 0
[pid  5223] <... write resumed>)        = 4
[pid  5222] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5223] close(3 <unfinished ...>
[pid  5222] <... openat resumed>)       = 3
[pid  5223] <... close resumed>)        = 0
[pid  5222] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5223] openat(AT_FDCWD, "/proc/partitions", O_RDONLY <unfinished ...>
[pid  5222] <... openat resumed>)       = 4
[pid  5223] <... openat resumed>)       = 3
[pid  5222] sendfile(4, 3, [88] <unfinished ...>
[pid  5221] <... setpgid resumed>)      = 0
[pid  5219] <... openat resumed>)       = 3
[pid  5223] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  5219] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY <unfinished ...>
[pid  5223] <... openat resumed>)       = 4
[pid  5223] sendfile(4, 3, [88] <unfinished ...>
[pid  5221] <... openat resumed>)       = 3
[pid  5221] write(3, "1000", 4 <unfinished ...>
[pid  5219] <... openat resumed>)       = 4
[pid  5221] <... write resumed>)        = 4
[pid  5219] sendfile(4, 3, [88] <unfinished ...>
[pid  5221] close(3)                    = 0
[pid  5218] <... write resumed>)        = 2097152
[pid  5221] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5221] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[pid  5221] sendfile(4, 3, [88] <unfinished ...>
[pid  5218] munmap(0x7f299346a000, 138412032) = 0
[pid  5218] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 6
[pid  5218] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5218] ioctl(6, LOOP_CLR_FD)       = 0
[pid  5218] ioctl(6, LOOP_SET_FD, 5)    = -1 EBUSY (Device or resource busy)
[pid  5218] close(6)                    = 0
[pid  5218] close(5)                    = 0
[pid  5218] open("./file1", O_RDWR|O_CREAT|O_SYNC|O_NOATIME|FASYNC, 000) = 5
[pid  5218] pwritev(5, [{iov_base="\xef\xd9\x3e\x66\x46\x70\xbf\xd2\xa6\xb3\xd1\x19\x7c\x8d\x01\xd2\x67\x23\x05\x16\x28\xc9\xcc\x52\xa5\x98\xe2\xa6\xd0\xcf\x8b\xb0\x0d\x25\x2c\x82\x10\xee\x02\x97\x1a\xd2\x5c\x48\x3b\xbd\x96\x85\x08\xfa\x65\x4e\x58\x1a\xd9\x71\x51\x63\x85\x35\x31\xcc\xdb\xde\x9c\x85\xcd\xa0\xb0\x84\x0c\xd6\x64\xea\x6f\xf8\x9e\x78\x63\xf6\xac\x82\x8e\x16\xea\x7e\xd2\xea\xa1\xbe\x00\x7d\x10\x60\x06\xe8\x74\x54\x75\x86"..., iov_len=103}, {iov_base=NULL, iov_len=0}], 2, 11452) = 103
[pid  5218] exit_group(0)               = ?
[pid  5218] +++ exited with 0 +++
[pid  5076] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5218, si_uid=0, si_status=0, si_utime=0, si_stime=11 /* 0.11 s */} ---
[pid  5076] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  5076] ioctl(3, LOOP_CLR_FD)       = 0
[pid  5076] close(3)                    = 0
[pid  5076] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5224 attached
 <unfinished ...>
[pid  5224] set_robust_list(0x55555677f660, 24) = 0
[pid  5076] <... clone resumed>, child_tidptr=0x55555677f650) = 5224
[pid  5224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  5224] setpgid(0, 0)               = 0
[pid  5224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  5224] write(3, "1000", 4)         = 4
[pid  5224] close(3)                    = 0
[pid  5224] openat(AT_FDCWD, "/proc/partitions", O_RDONLY) = 3
[pid  5224] openat(AT_FDCWD, "/proc/sys/vm/drop_caches", O_WRONLY) = 4
[   73.072956][ T5220] syz-executor166 (5220): drop_caches: 1
[   73.074267][ T5223] syz-executor166 (5223): drop_caches: 1
[   73.080987][ T5219] syz-executor166 (5219): drop_caches: 1
[   73.099348][ T5222] syz-executor166 (5222): drop_caches: 1
[   73.130771][ T5221] syz-executor166 (5221): drop_caches: 1
[pid  5224] sendfile(4, 3, [88] <unfinished ...>
[pid  5223] <... sendfile resumed> => [103], 15) = 15
[pid  5222] <... sendfile resumed> => [103], 15) = 15
[pid  5220] <... sendfile resumed> => [103], 15) = 15
[pid  5219] <... sendfile resumed> => [103], 15) = 15
[pid  5223] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5222] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5219] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5220] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5223] <... memfd_create resumed>) = 5
[pid  5223] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5222] <... memfd_create resumed>) = 5
[pid  5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5221] <... sendfile resumed> => [103], 15) = 15
[pid  5220] <... memfd_create resumed>) = 5
[pid  5219] <... memfd_create resumed>) = 5
[pid  5220] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5219] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0 <unfinished ...>
[pid  5220] <... mmap resumed>)         = 0x7f299346a000
[pid  5221] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5219] <... mmap resumed>)         = 0x7f299346a000
[   73.206951][ T5223] syz-executor166 (5223): drop_caches: 1
[   73.213615][ T5222] syz-executor166 (5222): drop_caches: 1
[   73.220744][ T5220] syz-executor166 (5220): drop_caches: 1
[   73.224634][ T5224] syz-executor166 (5224): drop_caches: 1
[   73.226697][ T5219] syz-executor166 (5219): drop_caches: 1
[   73.250780][ T5221] syz-executor166 (5221): drop_caches: 1
[pid  5223] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5221] <... memfd_create resumed>) = 5
[pid  5221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5222] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5224] <... sendfile resumed> => [103], 15) = 15
[pid  5222] <... write resumed>)        = 2097152
[pid  5219] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5220] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5224] memfd_create("syzkaller", 0 <unfinished ...>
[pid  5223] <... write resumed>)        = 2097152
[pid  5222] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5221] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5219] <... write resumed>)        = 2097152
[pid  5224] <... memfd_create resumed>) = 5
[pid  5223] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5220] <... write resumed>)        = 2097152
[pid  5224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f299346a000
[pid  5220] munmap(0x7f299346a000, 138412032 <unfinished ...>
[   73.285675][ T5224] syz-executor166 (5224): drop_caches: 1
[pid  5219] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5223] <... munmap resumed>)       = 0
[pid  5222] <... munmap resumed>)       = 0
[pid  5221] <... write resumed>)        = 2097152
[pid  5220] <... munmap resumed>)       = 0
[pid  5219] <... munmap resumed>)       = 0
[pid  5223] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  5222] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  5221] munmap(0x7f299346a000, 138412032 <unfinished ...>
[pid  5220] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  5219] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  5224] write(5, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x04\x40\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x07\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xf6\x00\x00\x00\xf4\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152 <unfinished ...>
[pid  5223] <... openat resumed>)       = 6
[pid  5222] <... openat resumed>)       = 6
[pid  5220] <... openat resumed>)       = 6
[pid  5219] <... openat resumed>)       = 6
[pid  5223] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5222] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5221] <... munmap resumed>)       = 0
[pid  5220] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5219] ioctl(6, LOOP_SET_FD, 5 <unfinished ...>
[pid  5223] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5222] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5219] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5220] <... ioctl resumed>)        = -1 EBUSY (Device or resource busy)
[pid  5219] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5223] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5220] ioctl(6, LOOP_CLR_FD <unfinished ...>
[pid  5219] <... ioctl resumed>)        = 0