./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor177308836 <...> Warning: Permanently added '10.128.10.7' (ED25519) to the list of known hosts. execve("./syz-executor177308836", ["./syz-executor177308836"], 0x7ffd0df63af0 /* 10 vars */) = 0 brk(NULL) = 0x555556c83000 brk(0x555556c83d00) = 0x555556c83d00 arch_prctl(ARCH_SET_FS, 0x555556c83380) = 0 set_tid_address(0x555556c83650) = 5060 set_robust_list(0x555556c83660, 24) = 0 rseq(0x555556c83ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor177308836", 4096) = 27 getrandom("\xad\x0e\xdc\x5f\xda\x74\x31\x38", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556c83d00 brk(0x555556ca4d00) = 0x555556ca4d00 brk(0x555556ca5000) = 0x555556ca5000 mprotect(0x7fa398edd000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5061 attached , child_tidptr=0x555556c83650) = 5061 [pid 5061] set_robust_list(0x555556c83660, 24) = 0 [pid 5061] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5061] setpgid(0, 0) = 0 [pid 5061] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5061] write(3, "1000", 4) = 4 [pid 5061] close(3) = 0 [pid 5061] memfd_create("syzkaller", 0) = 3 [pid 5061] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5061] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5061] munmap(0x7fa390a00000, 138412032) = 0 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5061] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5061] close(3) = 0 [pid 5061] close(4) = 0 [pid 5061] mkdir("./bus", 0777) = 0 [ 72.512236][ T5061] loop0: detected capacity change from 0 to 32768 [ 72.552395][ T5061] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor177 (5061) [ 72.586112][ T5061] BTRFS info (device loop0): first mount of filesystem a6a605fc-d5f1-4e66-8595-3726e2b761d6 [ 72.604042][ T5061] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm [ 72.614395][ T5061] BTRFS info (device loop0): using free-space-tree [pid 5061] mount("/dev/loop0", "./bus", "btrfs", 0, "") = 0 [pid 5061] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5061] chdir("./bus") = 0 [pid 5061] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5061] ioctl(4, LOOP_CLR_FD) = 0 [pid 5061] close(4) = 0 [pid 5061] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5061] pwrite64(4, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5061] ioctl(4, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = 0 [pid 5061] open(".", O_RDONLY) = 5 [pid 5061] ioctl(5, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = 0 [pid 5061] exit_group(0) = ? [pid 5061] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5061, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=23 /* 0.23 s */} --- [ 72.809266][ T5061] BTRFS info (device loop0): setting incompat feature flag for SIMPLE_QUOTA (0x10000) openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5081 attached [pid 5081] set_robust_list(0x555556c83660, 24) = 0 [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5081 [pid 5081] <... prctl resumed>) = 0 [pid 5081] setpgid(0, 0) = 0 [pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1000", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] memfd_create("syzkaller", 0) = 3 [pid 5081] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5081] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5081] munmap(0x7fa390a00000, 138412032) = 0 [pid 5081] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5081] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5081] ioctl(4, LOOP_CLR_FD) = 0 [pid 5081] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5081] close(4) = 0 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5081] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5081] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5081] open(".", O_RDONLY) = 4 [pid 5081] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5081] exit_group(0) = ? [pid 5081] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=29 /* 0.29 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5083 attached , child_tidptr=0x555556c83650) = 5083 [pid 5083] set_robust_list(0x555556c83660, 24) = 0 [pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5083] setpgid(0, 0) = 0 [pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5083] write(3, "1000", 4) = 4 [pid 5083] close(3) = 0 [pid 5083] memfd_create("syzkaller", 0) = 3 [pid 5083] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5083] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5083] munmap(0x7fa390a00000, 138412032) = 0 [pid 5083] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5083] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5083] ioctl(4, LOOP_CLR_FD) = 0 [pid 5083] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5083] close(4) = 0 [pid 5083] close(3) = 0 [pid 5083] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5083] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5083] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5083] open(".", O_RDONLY) = 4 [pid 5083] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5083] exit_group(0) = ? [pid 5083] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5086 attached , child_tidptr=0x555556c83650) = 5086 [pid 5086] set_robust_list(0x555556c83660, 24) = 0 [pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5086] setpgid(0, 0) = 0 [pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5086] write(3, "1000", 4) = 4 [pid 5086] close(3) = 0 [pid 5086] memfd_create("syzkaller", 0) = 3 [pid 5086] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5086] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5086] munmap(0x7fa390a00000, 138412032) = 0 [pid 5086] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5086] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5086] ioctl(4, LOOP_CLR_FD) = 0 [pid 5086] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5086] close(4) = 0 [pid 5086] close(3) = 0 [pid 5086] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5086] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5086] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5086] open(".", O_RDONLY) = 4 [pid 5086] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5086] exit_group(0) = ? [pid 5086] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=31 /* 0.31 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5089 attached [pid 5089] set_robust_list(0x555556c83660, 24) = 0 [pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5089 [pid 5089] <... prctl resumed>) = 0 [pid 5089] setpgid(0, 0) = 0 [pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5089] write(3, "1000", 4) = 4 [pid 5089] close(3) = 0 [pid 5089] memfd_create("syzkaller", 0) = 3 [pid 5089] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5089] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5089] munmap(0x7fa390a00000, 138412032) = 0 [pid 5089] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5089] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5089] ioctl(4, LOOP_CLR_FD) = 0 [pid 5089] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5089] close(4) = 0 [pid 5089] close(3) = 0 [pid 5089] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5089] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5089] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5089] open(".", O_RDONLY) = 4 [pid 5089] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5089] exit_group(0) = ? [pid 5089] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5092 attached , child_tidptr=0x555556c83650) = 5092 [pid 5092] set_robust_list(0x555556c83660, 24) = 0 [pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5092] setpgid(0, 0) = 0 [pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5092] write(3, "1000", 4) = 4 [pid 5092] close(3) = 0 [pid 5092] memfd_create("syzkaller", 0) = 3 [pid 5092] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5092] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5092] munmap(0x7fa390a00000, 138412032) = 0 [pid 5092] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5092] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5092] ioctl(4, LOOP_CLR_FD) = 0 [pid 5092] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5092] close(4) = 0 [pid 5092] close(3) = 0 [pid 5092] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5092] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5092] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5092] open(".", O_RDONLY) = 4 [pid 5092] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5092] exit_group(0) = ? [pid 5092] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=7 /* 0.07 s */, si_stime=23 /* 0.23 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5095 attached , child_tidptr=0x555556c83650) = 5095 [pid 5095] set_robust_list(0x555556c83660, 24) = 0 [pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5095] setpgid(0, 0) = 0 [pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5095] write(3, "1000", 4) = 4 [pid 5095] close(3) = 0 [pid 5095] memfd_create("syzkaller", 0) = 3 [pid 5095] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5095] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5095] munmap(0x7fa390a00000, 138412032) = 0 [pid 5095] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5095] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5095] ioctl(4, LOOP_CLR_FD) = 0 [pid 5095] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5095] close(4) = 0 [pid 5095] close(3) = 0 [pid 5095] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5095] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5095] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5095] open(".", O_RDONLY) = 4 [pid 5095] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5095] exit_group(0) = ? [pid 5095] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=28 /* 0.28 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5098 attached , child_tidptr=0x555556c83650) = 5098 [pid 5098] set_robust_list(0x555556c83660, 24) = 0 [pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5098] setpgid(0, 0) = 0 [pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5098] write(3, "1000", 4) = 4 [pid 5098] close(3) = 0 [pid 5098] memfd_create("syzkaller", 0) = 3 [pid 5098] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5098] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5098] munmap(0x7fa390a00000, 138412032) = 0 [pid 5098] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5098] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5098] ioctl(4, LOOP_CLR_FD) = 0 [pid 5098] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5098] close(4) = 0 [pid 5098] close(3) = 0 [pid 5098] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5098] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5098] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5098] open(".", O_RDONLY) = 4 [pid 5098] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5098] exit_group(0) = ? [pid 5098] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=31 /* 0.31 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5101 attached [pid 5101] set_robust_list(0x555556c83660, 24) = 0 [pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5101 [pid 5101] <... prctl resumed>) = 0 [pid 5101] setpgid(0, 0) = 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 5101] memfd_create("syzkaller", 0) = 3 [pid 5101] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5101] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5101] munmap(0x7fa390a00000, 138412032) = 0 [pid 5101] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5101] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5101] ioctl(4, LOOP_CLR_FD) = 0 [pid 5101] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5101] close(4) = 0 [pid 5101] close(3) = 0 [pid 5101] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5101] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5101] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5101] open(".", O_RDONLY) = 4 [pid 5101] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5101] exit_group(0) = ? [pid 5101] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=29 /* 0.29 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5104 attached [pid 5104] set_robust_list(0x555556c83660, 24) = 0 [pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5104 [pid 5104] <... prctl resumed>) = 0 [pid 5104] setpgid(0, 0) = 0 [pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5104] write(3, "1000", 4) = 4 [pid 5104] close(3) = 0 [pid 5104] memfd_create("syzkaller", 0) = 3 [pid 5104] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5104] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5104] munmap(0x7fa390a00000, 138412032) = 0 [pid 5104] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5104] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5104] ioctl(4, LOOP_CLR_FD) = 0 [pid 5104] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5104] close(4) = 0 [pid 5104] close(3) = 0 [pid 5104] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5104] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5104] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5104] open(".", O_RDONLY) = 4 [pid 5104] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5104] exit_group(0) = ? [pid 5104] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5107 attached , child_tidptr=0x555556c83650) = 5107 [pid 5107] set_robust_list(0x555556c83660, 24) = 0 [pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5107] setpgid(0, 0) = 0 [pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5107] write(3, "1000", 4) = 4 [pid 5107] close(3) = 0 [pid 5107] memfd_create("syzkaller", 0) = 3 [pid 5107] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5107] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5107] munmap(0x7fa390a00000, 138412032) = 0 [pid 5107] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5107] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5107] ioctl(4, LOOP_CLR_FD) = 0 [pid 5107] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5107] close(4) = 0 [pid 5107] close(3) = 0 [pid 5107] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5107] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5107] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5107] open(".", O_RDONLY) = 4 [pid 5107] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5107] exit_group(0) = ? [pid 5107] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=25 /* 0.25 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5110 attached , child_tidptr=0x555556c83650) = 5110 [pid 5110] set_robust_list(0x555556c83660, 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 5110] write(3, "1000", 4) = 4 [pid 5110] close(3) = 0 [pid 5110] memfd_create("syzkaller", 0) = 3 [pid 5110] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5110] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5110] munmap(0x7fa390a00000, 138412032) = 0 [pid 5110] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5110] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5110] ioctl(4, LOOP_CLR_FD) = 0 [pid 5110] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5110] close(4) = 0 [pid 5110] close(3) = 0 [pid 5110] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5110] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5110] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5110] open(".", O_RDONLY) = 4 [pid 5110] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5110] exit_group(0) = ? [pid 5110] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=29 /* 0.29 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5112 attached , child_tidptr=0x555556c83650) = 5112 [pid 5112] set_robust_list(0x555556c83660, 24) = 0 [pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5112] setpgid(0, 0) = 0 [pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5112] write(3, "1000", 4) = 4 [pid 5112] close(3) = 0 [pid 5112] memfd_create("syzkaller", 0) = 3 [pid 5112] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5112] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5112] munmap(0x7fa390a00000, 138412032) = 0 [pid 5112] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5112] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5112] ioctl(4, LOOP_CLR_FD) = 0 [pid 5112] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5112] close(4) = 0 [pid 5112] close(3) = 0 [pid 5112] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5112] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5112] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5112] open(".", O_RDONLY) = 4 [pid 5112] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5112] exit_group(0) = ? [pid 5112] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=28 /* 0.28 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5115 attached [pid 5115] set_robust_list(0x555556c83660, 24) = 0 [pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5115 [pid 5115] <... prctl resumed>) = 0 [pid 5115] setpgid(0, 0) = 0 [pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5115] write(3, "1000", 4) = 4 [pid 5115] close(3) = 0 [pid 5115] memfd_create("syzkaller", 0) = 3 [pid 5115] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5115] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5115] munmap(0x7fa390a00000, 138412032) = 0 [pid 5115] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5115] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5115] ioctl(4, LOOP_CLR_FD) = 0 [pid 5115] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5115] close(4) = 0 [pid 5115] close(3) = 0 [pid 5115] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5115] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5115] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5115] open(".", O_RDONLY) = 4 [pid 5115] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5115] exit_group(0) = ? [pid 5115] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=30 /* 0.30 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5118 attached , child_tidptr=0x555556c83650) = 5118 [pid 5118] set_robust_list(0x555556c83660, 24) = 0 [pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5118] setpgid(0, 0) = 0 [pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5118] write(3, "1000", 4) = 4 [pid 5118] close(3) = 0 [pid 5118] memfd_create("syzkaller", 0) = 3 [pid 5118] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5118] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5118] munmap(0x7fa390a00000, 138412032) = 0 [pid 5118] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5118] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5118] ioctl(4, LOOP_CLR_FD) = 0 [pid 5118] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5118] close(4) = 0 [pid 5118] close(3) = 0 [pid 5118] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5118] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5118] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5118] open(".", O_RDONLY) = 4 [pid 5118] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5118] exit_group(0) = ? [pid 5118] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5121 attached [pid 5121] set_robust_list(0x555556c83660, 24) = 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 [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5121 [pid 5121] <... openat resumed>) = 3 [pid 5121] write(3, "1000", 4) = 4 [pid 5121] close(3) = 0 [pid 5121] memfd_create("syzkaller", 0) = 3 [pid 5121] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5121] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5121] munmap(0x7fa390a00000, 138412032) = 0 [pid 5121] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5121] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5121] ioctl(4, LOOP_CLR_FD) = 0 [pid 5121] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5121] close(4) = 0 [pid 5121] close(3) = 0 [pid 5121] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5121] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5121] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5121] open(".", O_RDONLY) = 4 [pid 5121] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5121] exit_group(0) = ? [pid 5121] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5124 attached [pid 5124] set_robust_list(0x555556c83660, 24) = 0 [pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5124] setpgid(0, 0) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5124 [pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5124] write(3, "1000", 4) = 4 [pid 5124] close(3) = 0 [pid 5124] memfd_create("syzkaller", 0) = 3 [pid 5124] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5124] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5124] munmap(0x7fa390a00000, 138412032) = 0 [pid 5124] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5124] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5124] ioctl(4, LOOP_CLR_FD) = 0 [pid 5124] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5124] close(4) = 0 [pid 5124] close(3) = 0 [pid 5124] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5124] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5124] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5124] open(".", O_RDONLY) = 4 [pid 5124] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5124] exit_group(0) = ? [pid 5124] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=32 /* 0.32 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5127 attached , child_tidptr=0x555556c83650) = 5127 [pid 5127] set_robust_list(0x555556c83660, 24) = 0 [pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5127] setpgid(0, 0) = 0 [pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5127] write(3, "1000", 4) = 4 [pid 5127] close(3) = 0 [pid 5127] memfd_create("syzkaller", 0) = 3 [pid 5127] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5127] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5127] munmap(0x7fa390a00000, 138412032) = 0 [pid 5127] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5127] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5127] ioctl(4, LOOP_CLR_FD) = 0 [pid 5127] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5127] close(4) = 0 [pid 5127] close(3) = 0 [pid 5127] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5127] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5127] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5127] open(".", O_RDONLY) = 4 [pid 5127] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5127] exit_group(0) = ? [pid 5127] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=28 /* 0.28 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5130 attached , child_tidptr=0x555556c83650) = 5130 [pid 5130] set_robust_list(0x555556c83660, 24) = 0 [pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5130] setpgid(0, 0) = 0 [pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5130] write(3, "1000", 4) = 4 [pid 5130] close(3) = 0 [pid 5130] memfd_create("syzkaller", 0) = 3 [pid 5130] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5130] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5130] munmap(0x7fa390a00000, 138412032) = 0 [pid 5130] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5130] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5130] ioctl(4, LOOP_CLR_FD) = 0 [pid 5130] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5130] close(4) = 0 [pid 5130] close(3) = 0 [pid 5130] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5130] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5130] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5130] open(".", O_RDONLY) = 4 [pid 5130] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5130] exit_group(0) = ? [pid 5130] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5132 attached , child_tidptr=0x555556c83650) = 5132 [pid 5132] set_robust_list(0x555556c83660, 24) = 0 [pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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) = 0 [pid 5132] memfd_create("syzkaller", 0) = 3 [pid 5132] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5132] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5132] munmap(0x7fa390a00000, 138412032) = 0 [pid 5132] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5132] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5132] ioctl(4, LOOP_CLR_FD) = 0 [pid 5132] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5132] close(4) = 0 [pid 5132] close(3) = 0 [pid 5132] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5132] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5132] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5132] open(".", O_RDONLY) = 4 [pid 5132] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5132] exit_group(0) = ? [pid 5132] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=29 /* 0.29 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5135 attached , child_tidptr=0x555556c83650) = 5135 [pid 5135] set_robust_list(0x555556c83660, 24) = 0 [pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5135] setpgid(0, 0) = 0 [pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5135] write(3, "1000", 4) = 4 [pid 5135] close(3) = 0 [pid 5135] memfd_create("syzkaller", 0) = 3 [pid 5135] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5135] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5135] munmap(0x7fa390a00000, 138412032) = 0 [pid 5135] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5135] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5135] ioctl(4, LOOP_CLR_FD) = 0 [pid 5135] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5135] close(4) = 0 [pid 5135] close(3) = 0 [pid 5135] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5135] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5135] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5135] open(".", O_RDONLY) = 4 [pid 5135] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5135] exit_group(0) = ? [pid 5135] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=28 /* 0.28 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5138 attached , child_tidptr=0x555556c83650) = 5138 [pid 5138] set_robust_list(0x555556c83660, 24) = 0 [pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5138] setpgid(0, 0) = 0 [pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5138] write(3, "1000", 4) = 4 [pid 5138] close(3) = 0 [pid 5138] memfd_create("syzkaller", 0) = 3 [pid 5138] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5138] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5138] munmap(0x7fa390a00000, 138412032) = 0 [pid 5138] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5138] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5138] ioctl(4, LOOP_CLR_FD) = 0 [pid 5138] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5138] close(4) = 0 [pid 5138] close(3) = 0 [pid 5138] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5138] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5138] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5138] open(".", O_RDONLY) = 4 [pid 5138] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5138] exit_group(0) = ? [pid 5138] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=35 /* 0.35 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5141 attached [pid 5141] set_robust_list(0x555556c83660, 24 [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5141 [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] memfd_create("syzkaller", 0) = 3 [pid 5141] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5141] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5141] munmap(0x7fa390a00000, 138412032) = 0 [pid 5141] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5141] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5141] ioctl(4, LOOP_CLR_FD) = 0 [pid 5141] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5141] close(4) = 0 [pid 5141] close(3) = 0 [pid 5141] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5141] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5141] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5141] open(".", O_RDONLY) = 4 [pid 5141] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5141] exit_group(0) = ? [pid 5141] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=33 /* 0.33 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5144 attached , child_tidptr=0x555556c83650) = 5144 [pid 5144] set_robust_list(0x555556c83660, 24) = 0 [pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5144] setpgid(0, 0) = 0 [pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5144] write(3, "1000", 4) = 4 [pid 5144] close(3) = 0 [pid 5144] memfd_create("syzkaller", 0) = 3 [pid 5144] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5144] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5144] munmap(0x7fa390a00000, 138412032) = 0 [pid 5144] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5144] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5144] ioctl(4, LOOP_CLR_FD) = 0 [pid 5144] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5144] close(4) = 0 [pid 5144] close(3) = 0 [pid 5144] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5144] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5144] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5144] open(".", O_RDONLY) = 4 [pid 5144] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5144] exit_group(0) = ? [pid 5144] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=29 /* 0.29 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5147 attached [pid 5147] set_robust_list(0x555556c83660, 24) = 0 [pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [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) = 4 [pid 5147] close(3) = 0 [pid 5147] memfd_create("syzkaller", 0) = 3 [pid 5147] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5147 [pid 5147] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5147] munmap(0x7fa390a00000, 138412032) = 0 [pid 5147] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5147] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5147] ioctl(4, LOOP_CLR_FD) = 0 [pid 5147] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5147] close(4) = 0 [pid 5147] close(3) = 0 [pid 5147] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5147] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5147] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5147] open(".", O_RDONLY) = 4 [pid 5147] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5147] exit_group(0) = ? [pid 5147] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5150 attached , child_tidptr=0x555556c83650) = 5150 [pid 5150] set_robust_list(0x555556c83660, 24) = 0 [pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5150] setpgid(0, 0) = 0 [pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5150] write(3, "1000", 4) = 4 [pid 5150] close(3) = 0 [pid 5150] memfd_create("syzkaller", 0) = 3 [pid 5150] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5150] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5150] munmap(0x7fa390a00000, 138412032) = 0 [pid 5150] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5150] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5150] ioctl(4, LOOP_CLR_FD) = 0 [pid 5150] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5150] close(4) = 0 [pid 5150] close(3) = 0 [pid 5150] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5150] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5150] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5150] open(".", O_RDONLY) = 4 [pid 5150] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5150] exit_group(0) = ? [pid 5150] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=30 /* 0.30 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5153 attached , child_tidptr=0x555556c83650) = 5153 [pid 5153] set_robust_list(0x555556c83660, 24) = 0 [pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5153] setpgid(0, 0) = 0 [pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5153] write(3, "1000", 4) = 4 [pid 5153] close(3) = 0 [pid 5153] memfd_create("syzkaller", 0) = 3 [pid 5153] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5153] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5153] munmap(0x7fa390a00000, 138412032) = 0 [pid 5153] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5153] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5153] ioctl(4, LOOP_CLR_FD) = 0 [pid 5153] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5153] close(4) = 0 [ 87.039057][ T9] cfg80211: failed to load regulatory.db [pid 5153] close(3) = 0 [pid 5153] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5153] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5153] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5153] open(".", O_RDONLY) = 4 [pid 5153] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5153] exit_group(0) = ? [pid 5153] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5157 attached [pid 5157] set_robust_list(0x555556c83660, 24) = 0 [pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5157 [pid 5157] <... prctl resumed>) = 0 [pid 5157] setpgid(0, 0) = 0 [pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5157] write(3, "1000", 4) = 4 [pid 5157] close(3) = 0 [pid 5157] memfd_create("syzkaller", 0) = 3 [pid 5157] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5157] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5157] munmap(0x7fa390a00000, 138412032) = 0 [pid 5157] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5157] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5157] ioctl(4, LOOP_CLR_FD) = 0 [pid 5157] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5157] close(4) = 0 [pid 5157] close(3) = 0 [pid 5157] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5157] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5157] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5157] open(".", O_RDONLY) = 4 [pid 5157] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5157] exit_group(0) = ? [pid 5157] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=30 /* 0.30 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5160 attached , child_tidptr=0x555556c83650) = 5160 [pid 5160] set_robust_list(0x555556c83660, 24) = 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] memfd_create("syzkaller", 0) = 3 [pid 5160] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5160] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5160] munmap(0x7fa390a00000, 138412032) = 0 [pid 5160] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5160] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5160] ioctl(4, LOOP_CLR_FD) = 0 [pid 5160] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5160] close(4) = 0 [pid 5160] close(3) = 0 [pid 5160] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5160] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5160] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5160] open(".", O_RDONLY) = 4 [pid 5160] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5160] exit_group(0) = ? [pid 5160] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=0, si_stime=28 /* 0.28 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5163 attached , child_tidptr=0x555556c83650) = 5163 [pid 5163] set_robust_list(0x555556c83660, 24) = 0 [pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5163] setpgid(0, 0) = 0 [pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5163] write(3, "1000", 4) = 4 [pid 5163] close(3) = 0 [pid 5163] memfd_create("syzkaller", 0) = 3 [pid 5163] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5163] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5163] munmap(0x7fa390a00000, 138412032) = 0 [pid 5163] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5163] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5163] ioctl(4, LOOP_CLR_FD) = 0 [pid 5163] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5163] close(4) = 0 [pid 5163] close(3) = 0 [pid 5163] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5163] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5163] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5163] open(".", O_RDONLY) = 4 [pid 5163] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5163] exit_group(0) = ? [pid 5163] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=29 /* 0.29 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5166 attached , child_tidptr=0x555556c83650) = 5166 [pid 5166] set_robust_list(0x555556c83660, 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 5166] write(3, "1000", 4) = 4 [pid 5166] close(3) = 0 [pid 5166] memfd_create("syzkaller", 0) = 3 [pid 5166] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5166] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5166] munmap(0x7fa390a00000, 138412032) = 0 [pid 5166] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5166] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5166] ioctl(4, LOOP_CLR_FD) = 0 [pid 5166] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5166] close(4) = 0 [pid 5166] close(3) = 0 [pid 5166] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5166] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5166] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5166] open(".", O_RDONLY) = 4 [pid 5166] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5166] exit_group(0) = ? [pid 5166] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=32 /* 0.32 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5169 attached [pid 5169] set_robust_list(0x555556c83660, 24) = 0 [pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5169] setpgid(0, 0 [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5169 [pid 5169] <... setpgid resumed>) = 0 [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] memfd_create("syzkaller", 0) = 3 [pid 5169] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5169] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5169] munmap(0x7fa390a00000, 138412032) = 0 [pid 5169] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5169] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5169] ioctl(4, LOOP_CLR_FD) = 0 [pid 5169] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5169] close(4) = 0 [pid 5169] close(3) = 0 [pid 5169] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5169] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5169] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5169] open(".", O_RDONLY) = 4 [pid 5169] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5169] exit_group(0) = ? [pid 5169] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5169, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=29 /* 0.29 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5172 attached , child_tidptr=0x555556c83650) = 5172 [pid 5172] set_robust_list(0x555556c83660, 24) = 0 [pid 5172] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5172] setpgid(0, 0) = 0 [pid 5172] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5172] write(3, "1000", 4) = 4 [pid 5172] close(3) = 0 [pid 5172] memfd_create("syzkaller", 0) = 3 [pid 5172] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5172] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5172] munmap(0x7fa390a00000, 138412032) = 0 [pid 5172] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5172] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5172] ioctl(4, LOOP_CLR_FD) = 0 [pid 5172] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5172] close(4) = 0 [pid 5172] close(3) = 0 [pid 5172] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5172] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5172] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5172] open(".", O_RDONLY) = 4 [pid 5172] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5172] exit_group(0) = ? [pid 5172] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5172, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=28 /* 0.28 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5175 attached , child_tidptr=0x555556c83650) = 5175 [pid 5175] set_robust_list(0x555556c83660, 24) = 0 [pid 5175] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5175] setpgid(0, 0) = 0 [pid 5175] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5175] write(3, "1000", 4) = 4 [pid 5175] close(3) = 0 [pid 5175] memfd_create("syzkaller", 0) = 3 [pid 5175] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5175] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5175] munmap(0x7fa390a00000, 138412032) = 0 [pid 5175] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5175] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5175] ioctl(4, LOOP_CLR_FD) = 0 [pid 5175] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5175] close(4) = 0 [pid 5175] close(3) = 0 [pid 5175] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5175] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5175] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5175] open(".", O_RDONLY) = 4 [pid 5175] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5175] exit_group(0) = ? [pid 5175] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5175, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=29 /* 0.29 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5178 attached , child_tidptr=0x555556c83650) = 5178 [pid 5178] set_robust_list(0x555556c83660, 24) = 0 [pid 5178] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5178] setpgid(0, 0) = 0 [pid 5178] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5178] write(3, "1000", 4) = 4 [pid 5178] close(3) = 0 [pid 5178] memfd_create("syzkaller", 0) = 3 [pid 5178] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5178] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5178] munmap(0x7fa390a00000, 138412032) = 0 [pid 5178] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5178] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5178] ioctl(4, LOOP_CLR_FD) = 0 [pid 5178] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5178] close(4) = 0 [pid 5178] close(3) = 0 [pid 5178] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5178] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5178] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5178] open(".", O_RDONLY) = 4 [pid 5178] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5178] exit_group(0) = ? [pid 5178] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5178, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5181 attached , child_tidptr=0x555556c83650) = 5181 [pid 5181] set_robust_list(0x555556c83660, 24) = 0 [pid 5181] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5181] setpgid(0, 0) = 0 [pid 5181] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5181] write(3, "1000", 4) = 4 [pid 5181] close(3) = 0 [pid 5181] memfd_create("syzkaller", 0) = 3 [pid 5181] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5181] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5181] munmap(0x7fa390a00000, 138412032) = 0 [pid 5181] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5181] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5181] ioctl(4, LOOP_CLR_FD) = 0 [pid 5181] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5181] close(4) = 0 [pid 5181] close(3) = 0 [pid 5181] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5181] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5181] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5181] open(".", O_RDONLY) = 4 [pid 5181] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5181] exit_group(0) = ? [pid 5181] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5181, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=31 /* 0.31 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5184 attached , child_tidptr=0x555556c83650) = 5184 [pid 5184] set_robust_list(0x555556c83660, 24) = 0 [pid 5184] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5184] setpgid(0, 0) = 0 [pid 5184] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5184] write(3, "1000", 4) = 4 [pid 5184] close(3) = 0 [pid 5184] memfd_create("syzkaller", 0) = 3 [pid 5184] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5184] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5184] munmap(0x7fa390a00000, 138412032) = 0 [pid 5184] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5184] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5184] ioctl(4, LOOP_CLR_FD) = 0 [pid 5184] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5184] close(4) = 0 [pid 5184] close(3) = 0 [pid 5184] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5184] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5184] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5184] open(".", O_RDONLY) = 4 [pid 5184] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5184] exit_group(0) = ? [pid 5184] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5184, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5187 attached [pid 5187] set_robust_list(0x555556c83660, 24) = 0 [pid 5187] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5187 [pid 5187] <... prctl resumed>) = 0 [pid 5187] setpgid(0, 0) = 0 [pid 5187] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5187] write(3, "1000", 4) = 4 [pid 5187] close(3) = 0 [pid 5187] memfd_create("syzkaller", 0) = 3 [pid 5187] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5187] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5187] munmap(0x7fa390a00000, 138412032) = 0 [pid 5187] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5187] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5187] ioctl(4, LOOP_CLR_FD) = 0 [pid 5187] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5187] close(4) = 0 [pid 5187] close(3) = 0 [pid 5187] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5187] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5187] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5187] open(".", O_RDONLY) = 4 [pid 5187] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5187] exit_group(0) = ? [pid 5187] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5187, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=28 /* 0.28 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5190 attached , child_tidptr=0x555556c83650) = 5190 [pid 5190] set_robust_list(0x555556c83660, 24) = 0 [pid 5190] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5190] setpgid(0, 0) = 0 [pid 5190] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5190] write(3, "1000", 4) = 4 [pid 5190] close(3) = 0 [pid 5190] memfd_create("syzkaller", 0) = 3 [pid 5190] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5190] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5190] munmap(0x7fa390a00000, 138412032) = 0 [pid 5190] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5190] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5190] ioctl(4, LOOP_CLR_FD) = 0 [pid 5190] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5190] close(4) = 0 [pid 5190] close(3) = 0 [pid 5190] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5190] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5190] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5190] open(".", O_RDONLY) = 4 [pid 5190] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5190] exit_group(0) = ? [pid 5190] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5190, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5193 attached , child_tidptr=0x555556c83650) = 5193 [pid 5193] set_robust_list(0x555556c83660, 24) = 0 [pid 5193] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5193] setpgid(0, 0) = 0 [pid 5193] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5193] write(3, "1000", 4) = 4 [pid 5193] close(3) = 0 [pid 5193] memfd_create("syzkaller", 0) = 3 [pid 5193] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5193] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5193] munmap(0x7fa390a00000, 138412032) = 0 [pid 5193] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5193] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5193] ioctl(4, LOOP_CLR_FD) = 0 [pid 5193] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5193] close(4) = 0 [pid 5193] close(3) = 0 [pid 5193] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5193] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5193] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5193] open(".", O_RDONLY) = 4 [pid 5193] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5193] exit_group(0) = ? [pid 5193] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5193, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=31 /* 0.31 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5196 attached , child_tidptr=0x555556c83650) = 5196 [pid 5196] set_robust_list(0x555556c83660, 24) = 0 [pid 5196] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5196] setpgid(0, 0) = 0 [pid 5196] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5196] write(3, "1000", 4) = 4 [pid 5196] close(3) = 0 [pid 5196] memfd_create("syzkaller", 0) = 3 [pid 5196] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5196] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5196] munmap(0x7fa390a00000, 138412032) = 0 [pid 5196] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5196] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5196] ioctl(4, LOOP_CLR_FD) = 0 [pid 5196] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5196] close(4) = 0 [pid 5196] close(3) = 0 [pid 5196] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5196] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5196] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5196] open(".", O_RDONLY) = 4 [pid 5196] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5196] exit_group(0) = ? [pid 5196] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5196, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=29 /* 0.29 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5199 attached [pid 5199] set_robust_list(0x555556c83660, 24) = 0 [pid 5199] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5199 [pid 5199] <... prctl resumed>) = 0 [pid 5199] setpgid(0, 0) = 0 [pid 5199] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5199] write(3, "1000", 4) = 4 [pid 5199] close(3) = 0 [pid 5199] memfd_create("syzkaller", 0) = 3 [pid 5199] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5199] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5199] munmap(0x7fa390a00000, 138412032) = 0 [pid 5199] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5199] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5199] ioctl(4, LOOP_CLR_FD) = 0 [pid 5199] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5199] close(4) = 0 [pid 5199] close(3) = 0 [pid 5199] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5199] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5199] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5199] open(".", O_RDONLY) = 4 [pid 5199] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5199] exit_group(0) = ? [pid 5199] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5199, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=29 /* 0.29 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5202 attached [pid 5202] set_robust_list(0x555556c83660, 24) = 0 [pid 5202] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5202 [pid 5202] <... prctl resumed>) = 0 [pid 5202] setpgid(0, 0) = 0 [pid 5202] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5202] write(3, "1000", 4) = 4 [pid 5202] close(3) = 0 [pid 5202] memfd_create("syzkaller", 0) = 3 [pid 5202] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5202] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5202] munmap(0x7fa390a00000, 138412032) = 0 [pid 5202] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5202] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5202] ioctl(4, LOOP_CLR_FD) = 0 [pid 5202] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5202] close(4) = 0 [pid 5202] close(3) = 0 [pid 5202] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5202] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5202] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5202] open(".", O_RDONLY) = 4 [pid 5202] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5202] exit_group(0) = ? [pid 5202] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5202, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=29 /* 0.29 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5205 attached [pid 5205] set_robust_list(0x555556c83660, 24) = 0 [pid 5205] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5205 [pid 5205] setpgid(0, 0) = 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 5205] memfd_create("syzkaller", 0) = 3 [pid 5205] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5205] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5205] munmap(0x7fa390a00000, 138412032) = 0 [pid 5205] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5205] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5205] ioctl(4, LOOP_CLR_FD) = 0 [pid 5205] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5205] close(4) = 0 [pid 5205] close(3) = 0 [pid 5205] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5205] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5205] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5205] open(".", O_RDONLY) = 4 [pid 5205] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5205] exit_group(0) = ? [pid 5205] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5205, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=26 /* 0.26 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5208 attached , child_tidptr=0x555556c83650) = 5208 [pid 5208] set_robust_list(0x555556c83660, 24) = 0 [pid 5208] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [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] memfd_create("syzkaller", 0) = 3 [pid 5208] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5208] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5208] munmap(0x7fa390a00000, 138412032) = 0 [pid 5208] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5208] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5208] ioctl(4, LOOP_CLR_FD) = 0 [pid 5208] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5208] close(4) = 0 [pid 5208] close(3) = 0 [pid 5208] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5208] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5208] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5208] open(".", O_RDONLY) = 4 [pid 5208] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5208] exit_group(0) = ? [pid 5208] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5208, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=26 /* 0.26 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5210 attached [pid 5210] set_robust_list(0x555556c83660, 24) = 0 [pid 5210] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5210 [pid 5210] setpgid(0, 0) = 0 [pid 5210] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5210] write(3, "1000", 4) = 4 [pid 5210] close(3) = 0 [pid 5210] memfd_create("syzkaller", 0) = 3 [pid 5210] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5210] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5210] munmap(0x7fa390a00000, 138412032) = 0 [pid 5210] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5210] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5210] ioctl(4, LOOP_CLR_FD) = 0 [pid 5210] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5210] close(4) = 0 [pid 5210] close(3) = 0 [pid 5210] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5210] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5210] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5210] open(".", O_RDONLY) = 4 [pid 5210] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5210] exit_group(0) = ? [pid 5210] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5210, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=32 /* 0.32 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5213 attached , child_tidptr=0x555556c83650) = 5213 [pid 5213] set_robust_list(0x555556c83660, 24) = 0 [pid 5213] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5213] setpgid(0, 0) = 0 [pid 5213] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5213] write(3, "1000", 4) = 4 [pid 5213] close(3) = 0 [pid 5213] memfd_create("syzkaller", 0) = 3 [pid 5213] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5213] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5213] munmap(0x7fa390a00000, 138412032) = 0 [pid 5213] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5213] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5213] ioctl(4, LOOP_CLR_FD) = 0 [pid 5213] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5213] close(4) = 0 [pid 5213] close(3) = 0 [pid 5213] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5213] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5213] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5213] open(".", O_RDONLY) = 4 [pid 5213] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5213] exit_group(0) = ? [pid 5213] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5213, si_uid=0, si_status=0, si_utime=8 /* 0.08 s */, si_stime=28 /* 0.28 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5216 attached , child_tidptr=0x555556c83650) = 5216 [pid 5216] set_robust_list(0x555556c83660, 24) = 0 [pid 5216] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5216] setpgid(0, 0) = 0 [pid 5216] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5216] write(3, "1000", 4) = 4 [pid 5216] close(3) = 0 [pid 5216] memfd_create("syzkaller", 0) = 3 [pid 5216] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5216] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5216] munmap(0x7fa390a00000, 138412032) = 0 [pid 5216] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5216] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5216] ioctl(4, LOOP_CLR_FD) = 0 [pid 5216] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5216] close(4) = 0 [pid 5216] close(3) = 0 [pid 5216] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5216] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5216] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5216] open(".", O_RDONLY) = 4 [pid 5216] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5216] exit_group(0) = ? [pid 5216] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5216, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=26 /* 0.26 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5218 attached [pid 5218] set_robust_list(0x555556c83660, 24) = 0 [pid 5218] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5218 [pid 5218] <... prctl resumed>) = 0 [pid 5218] setpgid(0, 0) = 0 [pid 5218] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5218] write(3, "1000", 4) = 4 [pid 5218] close(3) = 0 [pid 5218] memfd_create("syzkaller", 0) = 3 [pid 5218] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5218] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5218] munmap(0x7fa390a00000, 138412032) = 0 [pid 5218] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5218] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5218] ioctl(4, LOOP_CLR_FD) = 0 [pid 5218] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5218] close(4) = 0 [pid 5218] close(3) = 0 [pid 5218] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5218] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5218] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5218] open(".", O_RDONLY) = 4 [pid 5218] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5218] exit_group(0) = ? [pid 5218] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5218, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=29 /* 0.29 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c83650) = 5221 ./strace-static-x86_64: Process 5221 attached [pid 5221] set_robust_list(0x555556c83660, 24) = 0 [pid 5221] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5221] setpgid(0, 0) = 0 [pid 5221] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5221] write(3, "1000", 4) = 4 [pid 5221] close(3) = 0 [pid 5221] memfd_create("syzkaller", 0) = 3 [pid 5221] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5221] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5221] munmap(0x7fa390a00000, 138412032) = 0 [pid 5221] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5221] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5221] ioctl(4, LOOP_CLR_FD) = 0 [pid 5221] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5221] close(4) = 0 [pid 5221] close(3) = 0 [pid 5221] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5221] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5221] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5221] open(".", O_RDONLY) = 4 [pid 5221] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5221] exit_group(0) = ? [pid 5221] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5221, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5224 attached [pid 5224] set_robust_list(0x555556c83660, 24) = 0 [pid 5224] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5224 [pid 5224] <... prctl resumed>) = 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] memfd_create("syzkaller", 0) = 3 [pid 5224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5224] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5224] munmap(0x7fa390a00000, 138412032) = 0 [pid 5224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5224] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5224] ioctl(4, LOOP_CLR_FD) = 0 [pid 5224] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5224] close(4) = 0 [pid 5224] close(3) = 0 [pid 5224] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5224] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5224] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5224] open(".", O_RDONLY) = 4 [pid 5224] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5224] exit_group(0) = ? [pid 5224] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5224, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=29 /* 0.29 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5227 attached , child_tidptr=0x555556c83650) = 5227 [pid 5227] set_robust_list(0x555556c83660, 24) = 0 [pid 5227] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5227] setpgid(0, 0) = 0 [pid 5227] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5227] write(3, "1000", 4) = 4 [pid 5227] close(3) = 0 [pid 5227] memfd_create("syzkaller", 0) = 3 [pid 5227] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5227] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5227] munmap(0x7fa390a00000, 138412032) = 0 [pid 5227] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5227] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5227] ioctl(4, LOOP_CLR_FD) = 0 [pid 5227] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5227] close(4) = 0 [pid 5227] close(3) = 0 [pid 5227] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5227] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5227] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5227] open(".", O_RDONLY) = 4 [pid 5227] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5227] exit_group(0) = ? [pid 5227] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5227, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=27 /* 0.27 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5231 attached , child_tidptr=0x555556c83650) = 5231 [pid 5231] set_robust_list(0x555556c83660, 24) = 0 [pid 5231] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5231] setpgid(0, 0) = 0 [pid 5231] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5231] write(3, "1000", 4) = 4 [pid 5231] close(3) = 0 [pid 5231] memfd_create("syzkaller", 0) = 3 [pid 5231] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5231] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5231] munmap(0x7fa390a00000, 138412032) = 0 [pid 5231] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5231] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5231] ioctl(4, LOOP_CLR_FD) = 0 [pid 5231] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5231] close(4) = 0 [pid 5231] close(3) = 0 [pid 5231] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5231] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5231] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5231] open(".", O_RDONLY) = 4 [pid 5231] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5231] exit_group(0) = ? [pid 5231] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5231, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=29 /* 0.29 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c83650) = 5233 ./strace-static-x86_64: Process 5233 attached [pid 5233] set_robust_list(0x555556c83660, 24) = 0 [pid 5233] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5233] setpgid(0, 0) = 0 [pid 5233] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5233] write(3, "1000", 4) = 4 [pid 5233] close(3) = 0 [pid 5233] memfd_create("syzkaller", 0) = 3 [pid 5233] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5233] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5233] munmap(0x7fa390a00000, 138412032) = 0 [pid 5233] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5233] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5233] ioctl(4, LOOP_CLR_FD) = 0 [pid 5233] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5233] close(4) = 0 [pid 5233] close(3) = 0 [pid 5233] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5233] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5233] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5233] open(".", O_RDONLY) = 4 [pid 5233] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5233] exit_group(0) = ? [pid 5233] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5233, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=27 /* 0.27 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5236 attached , child_tidptr=0x555556c83650) = 5236 [pid 5236] set_robust_list(0x555556c83660, 24) = 0 [pid 5236] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5236] setpgid(0, 0) = 0 [pid 5236] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5236] write(3, "1000", 4) = 4 [pid 5236] close(3) = 0 [pid 5236] memfd_create("syzkaller", 0) = 3 [pid 5236] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5236] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5236] munmap(0x7fa390a00000, 138412032) = 0 [pid 5236] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5236] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5236] ioctl(4, LOOP_CLR_FD) = 0 [pid 5236] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5236] close(4) = 0 [pid 5236] close(3) = 0 [pid 5236] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5236] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [pid 5236] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5236] open(".", O_RDONLY) = 4 [pid 5236] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5236] exit_group(0) = ? [pid 5236] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5236, si_uid=0, si_status=0, si_utime=1 /* 0.01 s */, si_stime=31 /* 0.31 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5239 attached [pid 5239] set_robust_list(0x555556c83660, 24) = 0 [pid 5239] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5060] <... clone resumed>, child_tidptr=0x555556c83650) = 5239 [pid 5239] <... prctl resumed>) = 0 [pid 5239] setpgid(0, 0) = 0 [pid 5239] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5239] write(3, "1000", 4) = 4 [pid 5239] close(3) = 0 [pid 5239] memfd_create("syzkaller", 0) = 3 [pid 5239] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [pid 5239] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216 [pid 5239] munmap(0x7fa390a00000, 138412032) = 0 [pid 5239] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5239] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5239] ioctl(4, LOOP_CLR_FD) = 0 [pid 5239] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5239] close(4) = 0 [ 103.038567][ T5079] ------------[ cut here ]------------ [ 103.044366][ T5079] BTRFS: Transaction aborted (error -2) [ 103.058235][ T5079] WARNING: CPU: 0 PID: 5079 at fs/btrfs/extent-tree.c:3006 __btrfs_free_extent+0x3212/0x3910 [ 103.068807][ T5079] Modules linked in: [ 103.072760][ T5079] CPU: 0 PID: 5079 Comm: btrfs-transacti Not tainted 6.8.0-rc6-syzkaller #0 [ 103.081555][ T5079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 103.091737][ T5079] RIP: 0010:__btrfs_free_extent+0x3212/0x3910 [ 103.097903][ T5079] Code: ea 8b 44 89 ee e8 4e af bb fd 90 0f 0b 90 90 e9 5a f3 ff ff e8 5f a4 f7 fd 90 48 c7 c7 c0 2a ea 8b 44 89 ee e8 2f af bb fd 90 <0f> 0b 90 90 e9 68 f3 ff ff e8 40 a4 f7 fd 90 48 c7 c7 c0 2a ea 8b [ 103.117771][ T5079] RSP: 0018:ffffc9000447f460 EFLAGS: 00010246 [ 103.123901][ T5079] RAX: 7b8ba139d74d3300 RBX: ffff888023010001 RCX: ffff888024fb8000 [ 103.132027][ T5079] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 103.140128][ T5079] RBP: ffffc9000447f640 R08: ffffffff815779c2 R09: 1ffff9200088fde0 [ 103.148218][ T5079] R10: dffffc0000000000 R11: fffff5200088fde1 R12: dffffc0000000000 [ 103.156273][ T5079] R13: 00000000fffffffe R14: 0000000000000000 R15: ffff88807ba56270 [ 103.164300][ T5079] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 103.173334][ T5079] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 103.180011][ T5079] CR2: 00005597e0a10c28 CR3: 0000000023fc0000 CR4: 00000000003506f0 [pid 5239] close(3) = 0 [pid 5239] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3 [pid 5239] pwrite64(3, "\xff\xc4\xdb\x72\xb7\x18\x46\xa3\x5f\xce\xa2\x54\x4e\x97\xb2\x02\x68\xee\x71\x67\xdf\x34\x98\x82\x5c\x4a\xb9\x2c\xd3\xc2\x74\xda\xae\x9a\x37\x42\x98\xad\x63\x13\x43\xb5\xd4\x63\x7f\xb6\xd9\xed\x2e\x35\x69\xe9\x35\xac\xd9\xa0\x83\xee\x44\x78\x0f\x65\x4c\xd9\x4d\x58\x3d\x0a\x6f\x30\x72\xa0\x8c\x01\xea\x44\xf4\xcd\x6c\x88\x72\xbd\xb6\x12\xa1\x57\x28\xc4\x27\xc3\xf0\xb3\x6e\x72\xed\xe9\x90\x70\xc6\xc8"..., 4096, 6) = 4096 [ 103.188162][ T5079] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 103.196249][ T5079] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 103.204563][ T5079] Call Trace: [ 103.208006][ T5079] [ 103.210978][ T5079] ? __warn+0x162/0x4b0 [ 103.215246][ T5079] ? __btrfs_free_extent+0x3212/0x3910 [ 103.221275][ T5079] ? report_bug+0x2b3/0x500 [ 103.226052][ T5079] ? __btrfs_free_extent+0x3212/0x3910 [ 103.231561][ T5079] ? handle_bug+0x3e/0x70 [pid 5239] ioctl(3, BTRFS_IOC_QUOTA_CTL, {cmd=0x4 /* BTRFS_QUOTA_CTL_??? */}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5239] open(".", O_RDONLY) = 4 [pid 5239] ioctl(4, BTRFS_IOC_QGROUP_CREATE, {create=0, qgroupid=5}) = -1 ENOTTY (Inappropriate ioctl for device) [pid 5239] exit_group(0) = ? [ 103.235975][ T5079] ? exc_invalid_op+0x1a/0x50 [ 103.240688][ T5079] ? asm_exc_invalid_op+0x1a/0x20 [ 103.246709][ T5079] ? __warn_printk+0x292/0x360 [ 103.251516][ T5079] ? __btrfs_free_extent+0x3212/0x3910 [ 103.257464][ T5079] ? __pfx___btrfs_free_extent+0x10/0x10 [ 103.263135][ T5079] ? __btrfs_run_delayed_refs+0x990/0x46c0 [ 103.269436][ T5079] ? __pfx_lock_release+0x10/0x10 [ 103.274505][ T5079] ? do_raw_read_unlock+0x3c/0x80 [ 103.279649][ T5079] ? do_raw_spin_unlock+0x13b/0x8b0 [pid 5239] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5239, si_uid=0, si_status=0, si_utime=2 /* 0.02 s */, si_stime=32 /* 0.32 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556c83650) = 5242 ./strace-static-x86_64: Process 5242 attached [pid 5242] set_robust_list(0x555556c83660, 24) = 0 [pid 5242] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5242] setpgid(0, 0) = 0 [pid 5242] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5242] write(3, "1000", 4) = 4 [pid 5242] close(3) = 0 [ 103.284902][ T5079] __btrfs_run_delayed_refs+0x130d/0x46c0 [ 103.290862][ T5079] ? __pfx___btrfs_run_delayed_refs+0x10/0x10 [ 103.297266][ T5079] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 103.303191][ T5079] ? lockdep_hardirqs_on+0x98/0x140 [ 103.308592][ T5079] ? __pfx_lock_acquire+0x10/0x10 [ 103.313683][ T5079] btrfs_run_delayed_refs+0xe3/0x2c0 [ 103.319062][ T5079] btrfs_commit_transaction+0x4ba/0x3740 [ 103.325647][ T5079] ? btrfs_commit_transaction+0x17b/0x3740 [ 103.333021][ T5079] ? __pfx_btrfs_commit_transaction+0x10/0x10 [pid 5242] memfd_create("syzkaller", 0) = 3 [pid 5242] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa390a00000 [ 103.340102][ T5079] ? lockdep_init_map_type+0xa1/0x900 [ 103.345550][ T5079] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 103.351697][ T5079] ? __pfx_debug_check_no_locks_freed+0x10/0x10 [ 103.358100][ T5079] ? join_transaction+0x405/0xcf0 [ 103.363172][ T5079] ? btrfs_record_root_in_trans+0x92/0x190 [ 103.369338][ T5079] ? start_transaction+0x3e0/0x15d0 [ 103.374617][ T5079] transaction_kthread+0x28a/0x500 [ 103.379840][ T5079] ? __pfx_transaction_kthread+0x10/0x10 [ 103.385526][ T5079] kthread+0x2ef/0x390 [ 103.389688][ T5079] ? __pfx_transaction_kthread+0x10/0x10 [ 103.395378][ T5079] ? __pfx_kthread+0x10/0x10 [ 103.400056][ T5079] ret_from_fork+0x4b/0x80 [ 103.404529][ T5079] ? __pfx_kthread+0x10/0x10 [ 103.409199][ T5079] ret_from_fork_asm+0x1b/0x30 [ 103.414043][ T5079] [ 103.417164][ T5079] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 103.424479][ T5079] CPU: 0 PID: 5079 Comm: btrfs-transacti Not tainted 6.8.0-rc6-syzkaller #0 [ 103.433196][ T5079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 [ 103.443280][ T5079] Call Trace: [ 103.446575][ T5079] [ 103.449514][ T5079] dump_stack_lvl+0x1e7/0x2e0 [ 103.454222][ T5079] ? __pfx_dump_stack_lvl+0x10/0x10 [ 103.459441][ T5079] ? __pfx__printk+0x10/0x10 [ 103.464055][ T5079] ? vscnprintf+0x5d/0x90 [ 103.468401][ T5079] panic+0x349/0x860 [ 103.472318][ T5079] ? __warn+0x171/0x4b0 [ 103.476496][ T5079] ? __pfx_panic+0x10/0x10 [ 103.480939][ T5079] ? ret_from_fork_asm+0x1b/0x30 [ 103.485897][ T5079] __warn+0x31c/0x4b0 [ 103.489894][ T5079] ? __btrfs_free_extent+0x3212/0x3910 [ 103.495388][ T5079] report_bug+0x2b3/0x500 [ 103.499728][ T5079] ? __btrfs_free_extent+0x3212/0x3910 [ 103.505205][ T5079] handle_bug+0x3e/0x70 [ 103.509369][ T5079] exc_invalid_op+0x1a/0x50 [ 103.513895][ T5079] asm_exc_invalid_op+0x1a/0x20 [ 103.518763][ T5079] RIP: 0010:__btrfs_free_extent+0x3212/0x3910 [ 103.524847][ T5079] Code: ea 8b 44 89 ee e8 4e af bb fd 90 0f 0b 90 90 e9 5a f3 ff ff e8 5f a4 f7 fd 90 48 c7 c7 c0 2a ea 8b 44 89 ee e8 2f af bb fd 90 <0f> 0b 90 90 e9 68 f3 ff ff e8 40 a4 f7 fd 90 48 c7 c7 c0 2a ea 8b [ 103.544463][ T5079] RSP: 0018:ffffc9000447f460 EFLAGS: 00010246 [ 103.550545][ T5079] RAX: 7b8ba139d74d3300 RBX: ffff888023010001 RCX: ffff888024fb8000 [ 103.558722][ T5079] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 103.566701][ T5079] RBP: ffffc9000447f640 R08: ffffffff815779c2 R09: 1ffff9200088fde0 [ 103.574683][ T5079] R10: dffffc0000000000 R11: fffff5200088fde1 R12: dffffc0000000000 [ 103.582686][ T5079] R13: 00000000fffffffe R14: 0000000000000000 R15: ffff88807ba56270 [ 103.590680][ T5079] ? __warn_printk+0x292/0x360 [ 103.595487][ T5079] ? __pfx___btrfs_free_extent+0x10/0x10 [ 103.601138][ T5079] ? __btrfs_run_delayed_refs+0x990/0x46c0 [ 103.606960][ T5079] ? __pfx_lock_release+0x10/0x10 [ 103.612000][ T5079] ? do_raw_read_unlock+0x3c/0x80 [ 103.617046][ T5079] ? do_raw_spin_unlock+0x13b/0x8b0 [ 103.622264][ T5079] __btrfs_run_delayed_refs+0x130d/0x46c0 [ 103.628043][ T5079] ? __pfx___btrfs_run_delayed_refs+0x10/0x10 [ 103.634142][ T5079] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 103.640092][ T5079] ? lockdep_hardirqs_on+0x98/0x140 [ 103.645310][ T5079] ? __pfx_lock_acquire+0x10/0x10 [ 103.650368][ T5079] btrfs_run_delayed_refs+0xe3/0x2c0 [ 103.655673][ T5079] btrfs_commit_transaction+0x4ba/0x3740 [ 103.661326][ T5079] ? btrfs_commit_transaction+0x17b/0x3740 [ 103.667164][ T5079] ? __pfx_btrfs_commit_transaction+0x10/0x10 [ 103.673250][ T5079] ? lockdep_init_map_type+0xa1/0x900 [ 103.678653][ T5079] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 103.684472][ T5079] ? __pfx_debug_check_no_locks_freed+0x10/0x10 [ 103.690738][ T5079] ? join_transaction+0x405/0xcf0 [ 103.695790][ T5079] ? btrfs_record_root_in_trans+0x92/0x190 [ 103.701611][ T5079] ? start_transaction+0x3e0/0x15d0 [ 103.706848][ T5079] transaction_kthread+0x28a/0x500 [ 103.711987][ T5079] ? __pfx_transaction_kthread+0x10/0x10 [ 103.717650][ T5079] kthread+0x2ef/0x390 [ 103.721739][ T5079] ? __pfx_transaction_kthread+0x10/0x10 [ 103.727386][ T5079] ? __pfx_kthread+0x10/0x10 [ 103.731988][ T5079] ret_from_fork+0x4b/0x80 [ 103.736419][ T5079] ? __pfx_kthread+0x10/0x10 [ 103.741014][ T5079] ret_from_fork_asm+0x1b/0x30 [ 103.745805][ T5079] [ 103.749105][ T5079] Kernel Offset: disabled [ 103.753551][ T5079] Rebooting in 86400 seconds..