ci2-upstream-fs/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-upstream-fs/syz-executor3202469198 <...> Warning: Permanently added '10.128.1.68' (ED25519) to the list of known hosts. execve("ci2-upstream-fs/syz-executor3202469198", ["ci2-upstream-fs/syz-executor3202469198"], 0x7ffe75abb1a0 /* 10 vars */) = 0 brk(NULL) = 0x555586598000 brk(0x555586598d80) = 0x555586598d80 arch_prctl(ARCH_SET_FS, 0x555586598400) = 0 set_tid_address(0x5555865986d0) = 5624 set_robust_list(0x5555865986e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-upstream-fs/syz-executor3202469198", 4096) = 44 getrandom("\xd0\xd9\x39\x44\x3e\x45\x3f\xad", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555586598d80 brk(0x5555865b9d80) = 0x5555865b9d80 brk(0x5555865ba000) = 0x5555865ba000 mprotect(0x7f0245433000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5625 attached , child_tidptr=0x5555865986d0) = 5625 [pid 5625] set_robust_list(0x5555865986e0, 24 [pid 5624] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] <... set_robust_list resumed>) = 0 [pid 5624] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5624] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC [pid 5625] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5624] <... openat resumed>) = 3 [pid 5624] write(3, "10000000000", 11) = 11 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "20", 2) = 2 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "1", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "0", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "0", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "1", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "100", 3) = 3 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "0", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "0", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "7 4 1 3", 7) = 7 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "1", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "1", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/sys/kernel/debug/failslab/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "Y", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "Y", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "Y", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/sys/kernel/debug/fail_usercopy/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "Y", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/sys/kernel/debug/fail_make_request/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "Y", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/sys/kernel/debug/fail_io_timeout/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "Y", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/sys/kernel/debug/fail_iommufd/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "Y", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "0", 1) = 1 [pid 5624] close(3) = 0 [pid 5624] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5624] write(3, "5625", 4) = 4 [pid 5624] close(3) = 0 [pid 5624] kill(5625, SIGKILL) = 0 [pid 5625] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5625, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5626 attached , child_tidptr=0x5555865986d0) = 5626 [pid 5624] rt_sigprocmask(SIG_SETMASK, [] [pid 5626] set_robust_list(0x5555865986e0, 24 [pid 5624] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5624] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5626] <... set_robust_list resumed>) = 0 [pid 5624] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5624] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5626] rt_sigprocmask(SIG_SETMASK, []ci2-upstream-fs/strace-static-x86_64: Process 5627 attached , NULL, 8) = 0 [pid 5624] <... clone resumed>, child_tidptr=0x5555865986d0) = 5627 [pid 5627] set_robust_list(0x5555865986e0, 24 [pid 5624] rt_sigprocmask(SIG_SETMASK, [] [pid 5626] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5627] <... set_robust_list resumed>) = 0 [pid 5624] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5624] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5627] rt_sigprocmask(SIG_SETMASK, [] [pid 5626] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5624] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5627] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5626] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5624] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5628 attached [pid 5627] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5628] set_robust_list(0x5555865986e0, 24 [pid 5626] <... clone resumed>, child_tidptr=0x5555865986d0) = 5628 [pid 5628] <... set_robust_list resumed>) = 0 [pid 5627] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5626] rt_sigprocmask(SIG_SETMASK, [] [pid 5628] rt_sigprocmask(SIG_SETMASK, [] [pid 5626] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5628] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 ci2-upstream-fs/strace-static-x86_64: Process 5629 attached [pid 5627] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5624] <... clone resumed>, child_tidptr=0x5555865986d0) = 5629 [pid 5629] set_robust_list(0x5555865986e0, 24 [pid 5628] setpgid(0, 0 [pid 5624] rt_sigprocmask(SIG_SETMASK, [] [pid 5629] <... set_robust_list resumed>) = 0 [pid 5628] <... setpgid resumed>) = 0 [pid 5629] rt_sigprocmask(SIG_SETMASK, [] [pid 5628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5624] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5629] <... rt_sigprocmask resumed>, NULL, 8) = 0 ci2-upstream-fs/strace-static-x86_64: Process 5630 attached [pid 5624] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5629] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5628] <... openat resumed>) = 3 [pid 5624] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5630] set_robust_list(0x5555865986e0, 24 [pid 5627] <... clone resumed>, child_tidptr=0x5555865986d0) = 5630 [pid 5630] <... set_robust_list resumed>) = 0 [pid 5629] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5627] rt_sigprocmask(SIG_SETMASK, [] [pid 5624] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5630] rt_sigprocmask(SIG_SETMASK, [] [pid 5629] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5628] write(3, "1000", 4 [pid 5627] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5628] <... write resumed>) = 4 [pid 5628] close(3) = 0 [pid 5628] write(1, "executing program\n", 18) = 18 [pid 5628] mkdirat(AT_FDCWD, "./sys", 0777 [pid 5630] <... prctl resumed>) = 0 executing program ci2-upstream-fs/strace-static-x86_64: Process 5631 attached [pid 5624] <... clone resumed>, child_tidptr=0x5555865986d0) = 5631 [pid 5630] setpgid(0, 0ci2-upstream-fs/strace-static-x86_64: Process 5632 attached [pid 5624] rt_sigprocmask(SIG_SETMASK, [] [pid 5631] set_robust_list(0x5555865986e0, 24 [pid 5630] <... setpgid resumed>) = 0 [pid 5632] set_robust_list(0x5555865986e0, 24 [pid 5631] <... set_robust_list resumed>) = 0 [pid 5632] <... set_robust_list resumed>) = 0 [pid 5631] rt_sigprocmask(SIG_SETMASK, [] [pid 5629] <... clone resumed>, child_tidptr=0x5555865986d0) = 5632 [pid 5632] rt_sigprocmask(SIG_SETMASK, [] [pid 5629] rt_sigprocmask(SIG_SETMASK, [] [pid 5632] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5631] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5629] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5632] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5631] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5632] <... prctl resumed>) = 0 [pid 5632] setpgid(0, 0 [pid 5631] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5632] <... setpgid resumed>) = 0 [pid 5631] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5624] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5632] <... openat resumed>) = 3 [pid 5630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5628] <... mkdirat resumed>) = 0 [pid 5632] write(3, "1000", 4) = 4 [pid 5632] close(3) = 0 [pid 5632] write(1, "executing program\n", 18ci2-upstream-fs/strace-static-x86_64: Process 5633 attached [pid 5624] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5632] <... write resumed>) = 18 [pid 5630] <... openat resumed>) = 3 [pid 5628] mount(NULL, "./sys", "sysfs", 0, NULL [pid 5624] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5633] set_robust_list(0x5555865986e0, 24 [pid 5632] mkdirat(AT_FDCWD, "./sys", 0777 [pid 5631] <... clone resumed>, child_tidptr=0x5555865986d0) = 5633 executing program [pid 5630] write(3, "1000", 4 [pid 5624] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5633] <... set_robust_list resumed>) = 0 [pid 5632] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5631] rt_sigprocmask(SIG_SETMASK, [] [pid 5628] <... mount resumed>) = 0 [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5632] mount(NULL, "./sys", "sysfs", 0, NULL [pid 5631] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] <... write resumed>) = 4 [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5632] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5630] close(3 [pid 5632] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY [pid 5630] <... close resumed>) = 0 [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5630] write(1, "executing program\n", 18 [pid 5633] <... prctl resumed>) = 0 [pid 5628] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLYci2-upstream-fs/strace-static-x86_64: Process 5634 attached executing program [pid 5633] setpgid(0, 0 [pid 5630] <... write resumed>) = 18 [pid 5624] <... clone resumed>, child_tidptr=0x5555865986d0) = 5634 [pid 5634] set_robust_list(0x5555865986e0, 24 [pid 5633] <... setpgid resumed>) = 0 [pid 5632] <... openat resumed>) = 3 [pid 5630] mkdirat(AT_FDCWD, "./sys", 0777 [pid 5628] <... openat resumed>) = 3 [pid 5624] rt_sigprocmask(SIG_SETMASK, [] [pid 5634] <... set_robust_list resumed>) = 0 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5632] write(3, "\x2d\x20\x2d\x20\x2d\x00", 6 [pid 5630] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5628] write(3, "\x2d\x20\x2d\x20\x2d\x00", 6 [pid 5624] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5634] rt_sigprocmask(SIG_SETMASK, [] [pid 5633] <... openat resumed>) = 3 [pid 5634] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] write(3, "1000", 4 [pid 5630] mount(NULL, "./sys", "sysfs", 0, NULL [pid 5634] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5633] <... write resumed>) = 4 [pid 5630] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5634] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5633] close(3 [pid 5630] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY [pid 5634] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5633] <... close resumed>) = 0 [pid 5630] <... openat resumed>) = 3 [pid 5630] write(3, "\x2d\x20\x2d\x20\x2d\x00", 6 [pid 5633] write(1, "executing program\n", 18) = 18 executing program [pid 5633] mkdirat(AT_FDCWD, "./sys", 0777) = -1 EEXIST (File exists) [pid 5633] mount(NULL, "./sys", "sysfs", 0, NULL) = -1 EBUSY (Device or resource busy) ci2-upstream-fs/strace-static-x86_64: Process 5635 attached [pid 5633] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY [pid 5635] set_robust_list(0x5555865986e0, 24 [pid 5634] <... clone resumed>, child_tidptr=0x5555865986d0) = 5635 [pid 5635] <... set_robust_list resumed>) = 0 [pid 5634] rt_sigprocmask(SIG_SETMASK, [] [pid 5633] <... openat resumed>) = 3 [pid 5635] rt_sigprocmask(SIG_SETMASK, [] [pid 5634] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] write(3, "\x2d\x20\x2d\x20\x2d\x00", 6 [pid 5635] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5635] setpgid(0, 0) = 0 [pid 5635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5635] write(3, "1000", 4) = 4 [pid 5635] close(3) = 0 executing program [pid 5635] write(1, "executing program\n", 18) = 18 [pid 5635] mkdirat(AT_FDCWD, "./sys", 0777) = -1 EEXIST (File exists) [pid 5635] mount(NULL, "./sys", "sysfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5635] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY) = 3 [pid 5635] write(3, "\x2d\x20\x2d\x20\x2d\x00", 6 [pid 5626] kill(-5628, SIGKILL) = 0 [pid 5626] kill(5628, SIGKILL) = 0 [pid 5627] kill(-5630, SIGKILL) = 0 [pid 5627] kill(5630, SIGKILL) = 0 [pid 5629] kill(-5632, SIGKILL) = 0 [pid 5629] kill(5632, SIGKILL) = 0 [pid 5631] kill(-5633, SIGKILL) = 0 [pid 5631] kill(5633, SIGKILL) = 0 [pid 5634] kill(-5635, SIGKILL) = 0 [pid 5634] kill(5635, SIGKILL) = 0 [pid 5626] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5626] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5626] getdents64(3, 0x555586599790 /* 2 entries */, 32768) = 48 [pid 5626] getdents64(3, 0x555586599790 /* 0 entries */, 32768) = 0 [pid 5626] close(3) = 0 [pid 5631] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5631] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5631] getdents64(3, 0x555586599790 /* 2 entries */, 32768) = 48 [pid 5631] getdents64(3, 0x555586599790 /* 0 entries */, 32768) = 0 [pid 5631] close(3) = 0 [pid 5629] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5629] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5629] getdents64(3, 0x555586599790 /* 2 entries */, 32768) = 48 [pid 5629] getdents64(3, 0x555586599790 /* 0 entries */, 32768) = 0 [pid 5629] close(3) = 0 [pid 5627] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5627] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5627] getdents64(3, 0x555586599790 /* 2 entries */, 32768) = 48 [pid 5627] getdents64(3, 0x555586599790 /* 0 entries */, 32768) = 0 [pid 5627] close(3) = 0 [pid 5634] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5634] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5634] getdents64(3, 0x555586599790 /* 2 entries */, 32768) = 48 [pid 5634] getdents64(3, 0x555586599790 /* 0 entries */, 32768) = 0 [pid 5634] close(3) = 0 [pid 5632] <... write resumed>) = ? [pid 5632] +++ killed by SIGKILL +++ [pid 5629] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5632, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=2 /* 0.02 s */} --- [pid 5629] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5629] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5636 attached , child_tidptr=0x5555865986d0) = 5636 [pid 5629] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5636] set_robust_list(0x5555865986e0, 24) = 0 [pid 5636] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5636] setpgid(0, 0) = 0 [pid 5636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5636] write(3, "1000", 4) = 4 [pid 5636] close(3) = 0 [pid 5636] write(1, "executing program\n", 18) = 18 executing program [pid 5636] mkdirat(AT_FDCWD, "./sys", 0777) = -1 EEXIST (File exists) [pid 5636] mount(NULL, "./sys", "sysfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5636] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY) = 3 [pid 5636] write(3, "\x2d\x20\x2d\x20\x2d\x00", 6 [pid 5629] kill(-5636, SIGKILL) = 0 [pid 5629] kill(5636, SIGKILL) = 0 [pid 5629] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5629] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5629] getdents64(3, 0x555586599790 /* 2 entries */, 32768) = 48 [pid 5629] getdents64(3, 0x555586599790 /* 0 entries */, 32768) = 0 [pid 5629] close(3) = 0 [pid 5628] <... write resumed>) = ? [pid 5628] +++ killed by SIGKILL +++ [pid 5626] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5628, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- [pid 5626] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5626] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5643 attached , child_tidptr=0x5555865986d0) = 5643 [pid 5643] set_robust_list(0x5555865986e0, 24) = 0 [pid 5643] rt_sigprocmask(SIG_SETMASK, [] [pid 5626] rt_sigprocmask(SIG_SETMASK, [] [pid 5643] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5643] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5626] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5643] <... prctl resumed>) = 0 [pid 5643] setpgid(0, 0) = 0 [pid 5643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5643] write(3, "1000", 4) = 4 [pid 5643] close(3) = 0 [pid 5643] write(1, "executing program\n", 18) = 18 executing program [pid 5643] mkdirat(AT_FDCWD, "./sys", 0777) = -1 EEXIST (File exists) [pid 5643] mount(NULL, "./sys", "sysfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5643] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY) = 3 [pid 5643] write(3, "\x2d\x20\x2d\x20\x2d\x00", 6 [pid 5626] kill(-5643, SIGKILL) = 0 [pid 5626] kill(5643, SIGKILL) = 0 [pid 5626] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5626] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5626] getdents64(3, 0x555586599790 /* 2 entries */, 32768) = 48 [pid 5626] getdents64(3, 0x555586599790 /* 0 entries */, 32768) = 0 [pid 5626] close(3) = 0 [pid 5630] <... write resumed>) = ? [pid 5630] +++ killed by SIGKILL +++ [pid 5627] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5630, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5627] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5627] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5644 attached , child_tidptr=0x5555865986d0) = 5644 [pid 5644] set_robust_list(0x5555865986e0, 24) = 0 [pid 5644] rt_sigprocmask(SIG_SETMASK, [] [pid 5627] rt_sigprocmask(SIG_SETMASK, [] [pid 5644] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5627] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5644] setpgid(0, 0) = 0 [pid 5644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5644] write(3, "1000", 4) = 4 [pid 5644] close(3) = 0 [pid 5644] write(1, "executing program\n", 18) = 18 executing program [pid 5644] mkdirat(AT_FDCWD, "./sys", 0777) = -1 EEXIST (File exists) [pid 5644] mount(NULL, "./sys", "sysfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5644] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY) = 3 [pid 5644] write(3, "\x2d\x20\x2d\x20\x2d\x00", 6 [pid 5627] kill(-5644, SIGKILL) = 0 [pid 5627] kill(5644, SIGKILL) = 0 [pid 5627] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5627] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5627] getdents64(3, 0x555586599790 /* 2 entries */, 32768) = 48 [pid 5627] getdents64(3, 0x555586599790 /* 0 entries */, 32768) = 0 [pid 5627] close(3) = 0 [pid 5633] <... write resumed>) = ? [pid 5633] +++ killed by SIGKILL +++ [pid 5631] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5633, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=4 /* 0.04 s */} --- [pid 5631] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5631] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5651 attached , child_tidptr=0x5555865986d0) = 5651 [pid 5631] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5651] set_robust_list(0x5555865986e0, 24) = 0 [pid 5651] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5651] setpgid(0, 0) = 0 [pid 5651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5651] write(3, "1000", 4) = 4 [pid 5651] close(3) = 0 [pid 5651] write(1, "executing program\n", 18) = 18 executing program [pid 5651] mkdirat(AT_FDCWD, "./sys", 0777) = -1 EEXIST (File exists) [pid 5651] mount(NULL, "./sys", "sysfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5651] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY) = 3 [pid 5651] write(3, "\x2d\x20\x2d\x20\x2d\x00", 6 [pid 5631] kill(-5651, SIGKILL) = 0 [pid 5631] kill(5651, SIGKILL) = 0 [pid 5631] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5631] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5631] getdents64(3, 0x555586599790 /* 2 entries */, 32768) = 48 [pid 5631] getdents64(3, 0x555586599790 /* 0 entries */, 32768) = 0 [pid 5631] close(3) = 0 [ 388.991424][ T39] INFO: task syz-executor320:5636 blocked for more than 143 seconds. [ 389.012712][ T39] Not tainted syzkaller #0 [ 389.012729][ T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 389.012773][ T39] task:syz-executor320 state:D stack:28264 pid:5636 tgid:5636 ppid:5629 task_flags:0x400140 flags:0x00080002 [ 389.012848][ T39] Call Trace: [ 389.012855][ T39] [ 389.012867][ T39] __schedule+0x16d9/0x5700 [ 389.012947][ T39] ? __pfx___schedule+0x10/0x10 [ 389.012977][ T39] rt_mutex_schedule+0x76/0xf0 [ 389.013000][ T39] rt_mutex_slowlock_block+0x55e/0x690 [ 389.013039][ T39] rt_mutex_slowlock+0x2d4/0x780 [ 389.013068][ T39] ? rt_mutex_slowlock+0x1f2/0x780 [ 389.013096][ T39] ? __pfx_rt_mutex_slowlock+0x10/0x10 [ 389.013135][ T39] ? scsi_scan_host_selected+0x19f/0x6c0 [ 389.013166][ T39] ? scsi_scan_host_selected+0x19f/0x6c0 [ 389.013185][ T39] mutex_lock_nested+0x168/0x1d0 [ 389.013235][ T39] scsi_scan_host_selected+0x19f/0x6c0 [ 389.013268][ T39] store_scan+0x4aa/0x540 [ 389.013293][ T39] ? __pfx_store_scan+0x10/0x10 [ 389.013318][ T39] ? lock_acquire+0x115/0x350 [ 389.013351][ T39] ? sysfs_file_kobj+0x1a/0x230 [ 389.013375][ T39] ? sysfs_break_active_protection+0x90/0xa0 [ 389.013392][ T39] ? sysfs_file_kobj+0x1a/0x230 [ 389.013407][ T39] ? sysfs_file_kobj+0x1a/0x230 [ 389.013424][ T39] ? sysfs_file_kobj+0x1e4/0x230 [ 389.013442][ T39] ? sysfs_kf_write+0x166/0x260 [ 389.013462][ T39] ? __pfx_sysfs_kf_write+0x10/0x10 [ 389.013478][ T39] kernfs_fop_write_iter+0x3a5/0x540 [ 389.013509][ T39] vfs_write+0x61e/0xbb0 [ 389.013536][ T39] ? __pfx_vfs_write+0x10/0x10 [ 389.013558][ T39] ? rt_spin_unlock+0x159/0x200 [ 389.013577][ T39] ? rt_spin_unlock+0x165/0x200 [ 389.013599][ T39] ksys_write+0x156/0x270 [ 389.013621][ T39] ? __pfx_ksys_write+0x10/0x10 [ 389.013649][ T39] do_syscall_64+0x166/0x520 [ 389.013670][ T39] ? trace_irq_disable+0x3b/0x140 [ 389.013693][ T39] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 389.013710][ T39] ? clear_bhb_loop+0x70/0xc0 [ 389.013731][ T39] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 389.013840][ T39] RIP: 0033:0x7f02453a08b9 [ 389.013878][ T39] RSP: 002b:00007fff5c384038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 389.013896][ T39] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f02453a08b9 [ 389.013913][ T39] RDX: 0000000000000006 RSI: 0000200000000100 RDI: 0000000000000003 [ 389.013925][ T39] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 389.013935][ T39] R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000031fe6 [ 389.013945][ T39] R13: 00007fff5c38404c R14: 00007fff5c384060 R15: 00007fff5c384050 [ 389.013972][ T39] [ 389.013989][ T39] [ 389.013989][ T39] Showing all locks held in the system: [ 389.014003][ T39] locks held by kworker/u8:1/13: 2, on CPU#1: [ 389.014016][ T39] #0: ffff88813ff64138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 389.014068][ T39] #1: ffffc90000127c40 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 389.014120][ T39] locks held by khungtaskd/39: 1, last CPU#1: [ 389.014132][ T39] #0: ffffffff8e1c3b40 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 389.014231][ T39] locks held by getty/5332: 2, on CPU#1: [ 389.014251][ T39] #0: ffff8880363e80a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 389.014304][ T39] #1: ffffc900044cb2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360 [ 389.014354][ T39] locks held by syz-executor320/5635: 4, on CPU#0: [ 389.014366][ T39] #0: ffff888036992510 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x231/0xbb0 [ 389.014415][ T39] #1: ffff88802bfdb878 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d9/0x540 [ 389.014466][ T39] #2: ffff888025d44a58 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x22c/0x540 [ 389.014520][ T39] #3: ffff88802572c110 (&shost->scan_mutex){+.+.}-{4:4}, at: scsi_scan_host_selected+0x19f/0x6c0 [ 389.014570][ T39] locks held by syz-executor320/5636: 4, on CPU#1: [ 389.014584][ T39] #0: ffff888036992510 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x231/0xbb0 [ 389.014633][ T39] #1: ffff88802bfd8878 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d9/0x540 [ 389.014685][ T39] #2: ffff888025d44a58 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x22c/0x540 [ 389.014740][ T39] #3: ffff88802572c110 (&shost->scan_mutex){+.+.}-{4:4}, at: scsi_scan_host_selected+0x19f/0x6c0 [ 389.014791][ T39] locks held by syz-executor320/5643: 4, on CPU#0: [ 389.014803][ T39] #0: ffff888036992510 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x231/0xbb0 [ 389.014850][ T39] #1: ffff88802bfd8c78 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d9/0x540 [ 389.014900][ T39] #2: ffff888025d44a58 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x22c/0x540 [ 389.014973][ T39] #3: ffff88802572c110 (&shost->scan_mutex){+.+.}-{4:4}, at: scsi_scan_host_selected+0x19f/0x6c0 [ 389.015017][ T39] locks held by syz-executor320/5644: 4, on CPU#1: [ 389.015029][ T39] #0: ffff888036992510 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x231/0xbb0 [ 389.015075][ T39] #1: ffff88802bfdbc78 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d9/0x540 [ 389.015124][ T39] #2: ffff888025d44a58 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x22c/0x540 [ 389.015179][ T39] #3: ffff88802572c110 (&shost->scan_mutex){+.+.}-{4:4}, at: scsi_scan_host_selected+0x19f/0x6c0 [ 389.015224][ T39] locks held by syz-executor320/5651: 4, on CPU#1: [ 389.015236][ T39] #0: ffff888036992510 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x231/0xbb0 [ 389.015290][ T39] #1: ffff88802bfd8078 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d9/0x540 [ 389.015339][ T39] #2: ffff888025d44a58 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x22c/0x540 [ 389.015392][ T39] #3: ffff88802572c110 (&shost->scan_mutex){+.+.}-{4:4}, at: scsi_scan_host_selected+0x19f/0x6c0 [ 389.015435][ T39] [ 389.015440][ T39] ============================================= [ 389.015440][ T39] [ 389.015455][ T39] NMI backtrace for cpu 1 [ 389.015474][ T39] CPU: 1 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 389.015492][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 389.015503][ T39] Call Trace: [ 389.015511][ T39] [ 389.015519][ T39] dump_stack_lvl+0xe8/0x150 [ 389.015548][ T39] nmi_cpu_backtrace+0x274/0x2d0 [ 389.015566][ T39] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 389.015596][ T39] nmi_trigger_cpumask_backtrace+0x17d/0x390 [ 389.015615][ T39] sys_info+0x135/0x170 [ 389.015639][ T39] watchdog+0xfd7/0x1030 [ 389.015665][ T39] ? watchdog+0x1c7/0x1030 [ 389.015690][ T39] kthread+0x38b/0x470 [ 389.015708][ T39] ? __pfx_watchdog+0x10/0x10 [ 389.015727][ T39] ? __pfx_kthread+0x10/0x10 [ 389.015745][ T39] ret_from_fork+0x514/0xb70 [ 389.015793][ T39] ? __pfx_ret_from_fork+0x10/0x10 [ 389.015810][ T39] ? __switch_to+0xc89/0x1420 [ 389.015838][ T39] ? __pfx_kthread+0x10/0x10 [ 389.015856][ T39] ret_from_fork_asm+0x1a/0x30 [ 389.015883][ T39] [ 389.015890][ T39] Sending NMI from CPU 1 to CPUs 0: [ 389.015968][ C0] NMI backtrace for cpu 0 [ 389.015985][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 389.016006][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 389.016017][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 389.016044][ C0] Code: 0c 62 02 e9 93 d8 03 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d d3 4b 13 00 fb f4 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 [ 389.016060][ C0] RSP: 0018:ffffffff8de07ca0 EFLAGS: 00000246 [ 389.016076][ C0] RAX: 000000000012be0f RBX: ffffffff819a7b70 RCX: 8000000000000001 [ 389.016090][ C0] RDX: 0000000000000001 RSI: ffffffff8d8ca675 RDI: ffffffff8bcc2280 [ 389.016103][ C0] RBP: ffffffff8de07d78 R08: ffff8880b8633e9b R09: 1ffff110170c67d3 [ 389.016117][ C0] R10: dffffc0000000000 R11: ffffed10170c67d4 R12: 0000000000000000 [ 389.016130][ C0] R13: 1ffffffff1bdedf0 R14: 1ffffffff1bc0f9c R15: dffffc0000000000 [ 389.016144][ C0] FS: 0000000000000000(0000) GS:ffff888125bd1000(0000) knlGS:0000000000000000 [ 389.016159][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 389.016172][ C0] CR2: 0000562236773168 CR3: 0000000032980000 CR4: 00000000003526f0 [ 389.016189][ C0] Call Trace: [ 389.016197][ C0] [ 389.016204][ C0] default_idle+0x9/0x20 [ 389.016230][ C0] default_idle_call+0x72/0xb0 [ 389.016256][ C0] do_idle+0x2e0/0x540 [ 389.016288][ C0] ? __pfx_do_idle+0x10/0x10 [ 389.016316][ C0] cpu_startup_entry+0x43/0x60 [ 389.016340][ C0] rest_init+0x378/0x3a0 [ 389.016367][ C0] ? __pfx_rest_init+0x10/0x10 [ 389.016398][ C0] ? __pfx_kernel_init+0x10/0x10 [ 389.016425][ C0] ? __pfx_acpi_hw_get_mode+0x10/0x10 [ 389.016455][ C0] ? acpi_ut_status_exit+0x120/0x1f0 [ 389.016479][ C0] ? acpi_ut_status_exit+0x120/0x1f0 [ 389.016503][ C0] ? acpi_enable_subsystem+0x286/0x3c0 [ 389.016524][ C0] start_kernel+0x392/0x3e0 [ 389.016568][ C0] x86_64_start_reservations+0x24/0x30 [ 389.016598][ C0] x86_64_start_kernel+0x137/0x1b0 [ 389.016625][ C0] common_startup_64+0x13e/0x157 [ 389.016658][ C0] [ 389.016973][ T39] Kernel panic - not syncing: hung_task: blocked tasks [ 389.929601][ T39] CPU: 1 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 389.939281][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 389.949393][ T39] Call Trace: [ 389.952720][ T39] [ 389.955783][ T39] vpanic+0x56d/0xa60 [ 389.959822][ T39] ? __pfx_vpanic+0x10/0x10 [ 389.964359][ T39] ? console_srcu_read_unlock+0x3a/0x60 [ 389.969948][ T39] panic+0xc5/0xd0 [ 389.973697][ T39] ? __pfx_panic+0x10/0x10 [ 389.978233][ T39] ? wq_watchdog_touch+0xf9/0x160 [ 389.983326][ T39] ? nmi_trigger_cpumask_backtrace+0x24d/0x390 [ 389.989537][ T39] watchdog+0x1030/0x1030 [ 389.994244][ T39] ? watchdog+0x1c7/0x1030 [ 389.998763][ T39] kthread+0x38b/0x470 [ 390.002915][ T39] ? __pfx_watchdog+0x10/0x10 [ 390.007631][ T39] ? __pfx_kthread+0x10/0x10 [ 390.012261][ T39] ret_from_fork+0x514/0xb70 [ 390.016886][ T39] ? __pfx_ret_from_fork+0x10/0x10 [ 390.022025][ T39] ? __switch_to+0xc89/0x1420 [ 390.026780][ T39] ? __pfx_kthread+0x10/0x10 [ 390.031586][ T39] ret_from_fork_asm+0x1a/0x30 [ 390.036423][ T39] [ 390.040296][ T39] Kernel Offset: disabled [ 390.044694][ T39] Rebooting in 86400 seconds..