ci2-upstream-fs/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-upstream-fs/syz-executor2068934099 <...> Warning: Permanently added '10.128.1.96' (ED25519) to the list of known hosts. execve("ci2-upstream-fs/syz-executor2068934099", ["ci2-upstream-fs/syz-executor2068934099"], 0x7fffd5663cf0 /* 10 vars */) = 0 brk(NULL) = 0x55559396a000 brk(0x55559396ad80) = 0x55559396ad80 arch_prctl(ARCH_SET_FS, 0x55559396a400) = 0 set_tid_address(0x55559396a6d0) = 5623 set_robust_list(0x55559396a6e0, 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-executor2068934099", 4096) = 44 getrandom("\x5c\x47\x79\xca\xd5\x9b\xca\xe5", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55559396ad80 brk(0x55559398bd80) = 0x55559398bd80 brk(0x55559398c000) = 0x55559398c000 mprotect(0x7f76fb632000, 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 5624 attached , child_tidptr=0x55559396a6d0) = 5624 [pid 5624] set_robust_list(0x55559396a6e0, 24 [pid 5623] rt_sigprocmask(SIG_SETMASK, [] [pid 5624] <... set_robust_list resumed>) = 0 [pid 5623] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5624] rt_sigprocmask(SIG_SETMASK, [] [pid 5623] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC [pid 5624] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5623] <... openat resumed>) = 3 [pid 5623] write(3, "10000000000", 11) = 11 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "20", 2) = 2 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "1", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "0", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "0", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "1", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "100", 3) = 3 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "0", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "0", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "7 4 1 3", 7) = 7 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "1", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "1", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/sys/kernel/debug/failslab/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "Y", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "Y", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "Y", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/sys/kernel/debug/fail_usercopy/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "Y", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/sys/kernel/debug/fail_make_request/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "Y", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/sys/kernel/debug/fail_io_timeout/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "Y", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/sys/kernel/debug/fail_iommufd/task-filter", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "Y", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "0", 1) = 1 [pid 5623] close(3) = 0 [pid 5623] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5623] write(3, "5624", 4) = 4 [pid 5623] close(3) = 0 [pid 5623] kill(5624, SIGKILL) = 0 [pid 5624] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5624, 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 5625 attached , child_tidptr=0x55559396a6d0) = 5625 [pid 5623] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] set_robust_list(0x55559396a6e0, 24) = 0 [pid 5623] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5625] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5623] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5625] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5623] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5623] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5625] <... rt_sigprocmask resumed>, [], 8) = 0 ci2-upstream-fs/strace-static-x86_64: Process 5626 attached [pid 5623] <... clone resumed>, child_tidptr=0x55559396a6d0) = 5626 [pid 5625] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5623] rt_sigprocmask(SIG_SETMASK, [] [pid 5626] set_robust_list(0x55559396a6e0, 24ci2-upstream-fs/strace-static-x86_64: Process 5627 attached ) = 0 [pid 5623] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5623] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5627] set_robust_list(0x55559396a6e0, 24 [pid 5625] <... clone resumed>, child_tidptr=0x55559396a6d0) = 5627 [pid 5623] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5627] <... set_robust_list resumed>) = 0 [pid 5626] rt_sigprocmask(SIG_SETMASK, [] [pid 5625] rt_sigprocmask(SIG_SETMASK, [] [pid 5623] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5627] rt_sigprocmask(SIG_SETMASK, [] [pid 5626] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5627] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5625] <... rt_sigprocmask resumed>, NULL, 8) = 0 ci2-upstream-fs/strace-static-x86_64: Process 5628 attached [pid 5626] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5623] <... clone resumed>, child_tidptr=0x55559396a6d0) = 5628 [pid 5628] set_robust_list(0x55559396a6e0, 24 [pid 5627] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5626] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5623] rt_sigprocmask(SIG_SETMASK, [] [pid 5628] <... set_robust_list resumed>) = 0 [pid 5627] <... prctl resumed>) = 0 [pid 5626] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5623] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5628] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci2-upstream-fs/strace-static-x86_64: Process 5629 attached [pid 5623] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5627] setpgid(0, 0 [pid 5623] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5629] set_robust_list(0x55559396a6e0, 24 [pid 5623] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5628] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5627] <... setpgid resumed>) = 0 [pid 5626] <... clone resumed>, child_tidptr=0x55559396a6d0) = 5629 [pid 5629] <... set_robust_list resumed>) = 0 [pid 5628] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5626] rt_sigprocmask(SIG_SETMASK, [] [pid 5628] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5627] <... openat resumed>) = 3 ci2-upstream-fs/strace-static-x86_64: Process 5630 attached [pid 5629] rt_sigprocmask(SIG_SETMASK, [] [pid 5626] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5623] <... clone resumed>, child_tidptr=0x55559396a6d0) = 5630 [pid 5629] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5627] write(3, "1000", 4 [pid 5630] set_robust_list(0x55559396a6e0, 24 [pid 5629] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5623] rt_sigprocmask(SIG_SETMASK, [] [pid 5630] <... set_robust_list resumed>) = 0 [pid 5629] <... prctl resumed>) = 0 [pid 5627] <... write resumed>) = 4 ci2-upstream-fs/strace-static-x86_64: Process 5631 attached [pid 5623] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] rt_sigprocmask(SIG_SETMASK, [] [pid 5628] <... clone resumed>, child_tidptr=0x55559396a6d0) = 5631 [pid 5627] close(3 [pid 5629] setpgid(0, 0 [pid 5623] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5628] rt_sigprocmask(SIG_SETMASK, [] [pid 5623] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5631] set_robust_list(0x55559396a6e0, 24 [pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5629] <... setpgid resumed>) = 0 [pid 5628] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5627] <... close resumed>) = 0 [pid 5629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5627] write(1, "executing program\n", 18 [pid 5630] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5631] <... set_robust_list resumed>) = 0 executing program [pid 5623] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5631] rt_sigprocmask(SIG_SETMASK, [] [pid 5630] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5629] <... openat resumed>) = 3 [pid 5627] <... write resumed>) = 18 [pid 5631] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5630] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5627] mkdirat(AT_FDCWD, "./sys", 0755 [pid 5629] write(3, "1000", 4 [pid 5631] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5629] <... write resumed>) = 4 [pid 5629] close(3) = 0 [pid 5629] write(1, "executing program\n", 18 [pid 5631] <... prctl resumed>) = 0 [pid 5629] <... write resumed>) = 18 [pid 5631] setpgid(0, 0 executing program [pid 5629] mkdirat(AT_FDCWD, "./sys", 0755ci2-upstream-fs/strace-static-x86_64: Process 5632 attached [pid 5631] <... setpgid resumed>) = 0 [pid 5632] set_robust_list(0x55559396a6e0, 24 [pid 5631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECci2-upstream-fs/strace-static-x86_64: Process 5633 attached [pid 5632] <... set_robust_list resumed>) = 0 [pid 5632] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5632] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5630] <... clone resumed>, child_tidptr=0x55559396a6d0) = 5633 [pid 5633] set_robust_list(0x55559396a6e0, 24 [pid 5632] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5633] <... set_robust_list resumed>) = 0 [pid 5630] rt_sigprocmask(SIG_SETMASK, [] [pid 5633] rt_sigprocmask(SIG_SETMASK, [] [pid 5632] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5623] <... clone resumed>, child_tidptr=0x55559396a6d0) = 5632 [pid 5633] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5631] <... openat resumed>) = 3 [pid 5627] <... mkdirat resumed>) = 0 ci2-upstream-fs/strace-static-x86_64: Process 5634 attached [pid 5623] rt_sigprocmask(SIG_SETMASK, [] [pid 5633] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5632] <... clone resumed>, child_tidptr=0x55559396a6d0) = 5634 [pid 5629] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5627] mount(NULL, "./sys", "sysfs", 0, NULL [pid 5631] write(3, "1000", 4 [pid 5623] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] <... prctl resumed>) = 0 [pid 5629] mount(NULL, "./sys", "sysfs", 0, NULL [pid 5633] setpgid(0, 0 [pid 5629] <... mount resumed>) = 0 [pid 5627] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5634] set_robust_list(0x55559396a6e0, 24 [pid 5633] <... setpgid resumed>) = 0 [pid 5632] rt_sigprocmask(SIG_SETMASK, [] [pid 5631] <... write resumed>) = 4 [pid 5627] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY [pid 5634] <... set_robust_list resumed>) = 0 [pid 5631] close(3 [pid 5629] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY [pid 5634] rt_sigprocmask(SIG_SETMASK, [] [pid 5631] <... close resumed>) = 0 [pid 5632] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5629] <... openat resumed>) = 3 [pid 5634] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5633] write(3, "1000", 4 [pid 5631] write(1, "executing program\n", 18 [pid 5629] write(3, "- - -", 5 [pid 5627] <... openat resumed>) = 3 executing program [pid 5634] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5633] <... write resumed>) = 4 [pid 5631] <... write resumed>) = 18 [pid 5627] write(3, "- - -", 5 [pid 5634] <... prctl resumed>) = 0 [pid 5633] close(3 [pid 5631] mkdirat(AT_FDCWD, "./sys", 0755 [pid 5634] setpgid(0, 0 [pid 5633] <... close resumed>) = 0 [pid 5631] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5634] <... setpgid resumed>) = 0 [pid 5633] write(1, "executing program\n", 18 [pid 5631] mount(NULL, "./sys", "sysfs", 0, NULL [pid 5634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5633] <... write resumed>) = 18 [pid 5631] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5634] <... openat resumed>) = 3 [pid 5633] mkdirat(AT_FDCWD, "./sys", 0755 [pid 5631] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY [pid 5634] write(3, "1000", 4 [pid 5633] <... mkdirat resumed>) = -1 EEXIST (File exists) [pid 5631] <... openat resumed>) = 3 [pid 5634] <... write resumed>) = 4 executing program [pid 5633] mount(NULL, "./sys", "sysfs", 0, NULL [pid 5634] close(3 [pid 5633] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5631] write(3, "- - -", 5 [pid 5634] <... close resumed>) = 0 [pid 5633] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY [pid 5634] write(1, "executing program\n", 18 [pid 5633] <... openat resumed>) = 3 executing program [pid 5634] <... write resumed>) = 18 [pid 5634] mkdirat(AT_FDCWD, "./sys", 0755) = -1 EEXIST (File exists) [pid 5633] write(3, "- - -", 5 [pid 5634] mount(NULL, "./sys", "sysfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5634] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY) = 3 [pid 5634] write(3, "- - -", 5 [pid 5625] kill(-5627, SIGKILL) = 0 [pid 5625] kill(5627, SIGKILL) = 0 [pid 5628] kill(-5631, SIGKILL [pid 5626] kill(-5629, SIGKILL [pid 5628] <... kill resumed>) = 0 [pid 5626] <... kill resumed>) = 0 [pid 5628] kill(5631, SIGKILL [pid 5626] kill(5629, SIGKILL [pid 5628] <... kill resumed>) = 0 [pid 5626] <... kill resumed>) = 0 [pid 5630] kill(-5633, SIGKILL) = 0 [pid 5630] kill(5633, SIGKILL) = 0 [pid 5632] kill(-5634, SIGKILL) = 0 [pid 5632] kill(5634, SIGKILL) = 0 [pid 5628] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5628] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5628] getdents64(3, 0x55559396b790 /* 2 entries */, 32768) = 48 [pid 5628] getdents64(3, 0x55559396b790 /* 0 entries */, 32768) = 0 [pid 5628] close(3) = 0 [pid 5625] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5625] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5625] getdents64(3, 0x55559396b790 /* 2 entries */, 32768) = 48 [pid 5625] getdents64(3 [pid 5632] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY [pid 5625] <... getdents64 resumed>, 0x55559396b790 /* 0 entries */, 32768) = 0 [pid 5626] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5625] close(3 [pid 5632] <... openat resumed>) = 3 [pid 5626] fstat(3 [pid 5625] <... close resumed>) = 0 [pid 5632] fstat(3 [pid 5626] <... fstat resumed>, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5632] <... fstat resumed>, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5632] getdents64(3 [pid 5626] getdents64(3 [pid 5632] <... getdents64 resumed>, 0x55559396b790 /* 2 entries */, 32768) = 48 [pid 5626] <... getdents64 resumed>, 0x55559396b790 /* 2 entries */, 32768) = 48 [pid 5632] getdents64(3 [pid 5626] getdents64(3 [pid 5632] <... getdents64 resumed>, 0x55559396b790 /* 0 entries */, 32768) = 0 [pid 5626] <... getdents64 resumed>, 0x55559396b790 /* 0 entries */, 32768) = 0 [pid 5632] close(3 [pid 5626] close(3 [pid 5632] <... close resumed>) = 0 [pid 5626] <... close resumed>) = 0 [pid 5630] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5630] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5630] getdents64(3, 0x55559396b790 /* 2 entries */, 32768) = 48 [pid 5630] getdents64(3, 0x55559396b790 /* 0 entries */, 32768) = 0 [pid 5630] close(3) = 0 [pid 5629] <... write resumed>) = ? [pid 5629] +++ killed by SIGKILL +++ [pid 5626] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5629, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=6 /* 0.06 s */} --- [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 5641 attached , child_tidptr=0x55559396a6d0) = 5641 [pid 5641] set_robust_list(0x55559396a6e0, 24 [pid 5626] rt_sigprocmask(SIG_SETMASK, [] [pid 5641] <... set_robust_list resumed>) = 0 [pid 5626] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5641] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5641] setpgid(0, 0) = 0 [pid 5641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5641] write(3, "1000", 4) = 4 [pid 5641] close(3) = 0 [pid 5641] write(1, "executing program\n", 18) = 18 executing program [pid 5641] mkdirat(AT_FDCWD, "./sys", 0755) = -1 EEXIST (File exists) [pid 5641] mount(NULL, "./sys", "sysfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5641] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY) = 3 [pid 5641] write(3, "- - -", 5 [pid 5626] kill(-5641, SIGKILL) = 0 [pid 5626] kill(5641, 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, 0x55559396b790 /* 2 entries */, 32768) = 48 [pid 5626] getdents64(3, 0x55559396b790 /* 0 entries */, 32768) = 0 [pid 5626] close(3) = 0 [pid 5627] <... write resumed>) = ? [pid 5627] +++ killed by SIGKILL +++ [pid 5625] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5627, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5625] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5625] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5648 attached , child_tidptr=0x55559396a6d0) = 5648 [pid 5625] rt_sigprocmask(SIG_SETMASK, [] [pid 5648] set_robust_list(0x55559396a6e0, 24) = 0 [pid 5625] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5648] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5648] setpgid(0, 0) = 0 [pid 5648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5648] write(3, "1000", 4) = 4 [pid 5648] close(3) = 0 [pid 5648] write(1, "executing program\n", 18) = 18 executing program [pid 5648] mkdirat(AT_FDCWD, "./sys", 0755) = -1 EEXIST (File exists) [pid 5648] mount(NULL, "./sys", "sysfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5648] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY) = 3 [pid 5648] write(3, "- - -", 5 [pid 5625] kill(-5648, SIGKILL) = 0 [pid 5625] kill(5648, SIGKILL) = 0 [pid 5625] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5625] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5625] getdents64(3, 0x55559396b790 /* 2 entries */, 32768) = 48 [pid 5625] getdents64(3, 0x55559396b790 /* 0 entries */, 32768) = 0 [pid 5625] close(3) = 0 [pid 5631] <... write resumed>) = ? [pid 5631] +++ killed by SIGKILL +++ [pid 5628] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5631, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- [pid 5628] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5628] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5649 attached , child_tidptr=0x55559396a6d0) = 5649 [pid 5649] set_robust_list(0x55559396a6e0, 24) = 0 [pid 5628] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5649] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5649] setpgid(0, 0) = 0 [pid 5649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5649] write(3, "1000", 4) = 4 [pid 5649] close(3) = 0 executing program [pid 5649] write(1, "executing program\n", 18) = 18 [pid 5649] mkdirat(AT_FDCWD, "./sys", 0755) = -1 EEXIST (File exists) [pid 5649] mount(NULL, "./sys", "sysfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5649] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY) = 3 [pid 5649] write(3, "- - -", 5 [pid 5628] kill(-5649, SIGKILL) = 0 [pid 5628] kill(5649, SIGKILL) = 0 [pid 5628] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5628] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5628] getdents64(3, 0x55559396b790 /* 2 entries */, 32768) = 48 [pid 5628] getdents64(3, 0x55559396b790 /* 0 entries */, 32768) = 0 [pid 5628] close(3) = 0 [pid 5633] <... write resumed>) = ? [pid 5633] +++ killed by SIGKILL +++ [pid 5630] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5633, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- [pid 5630] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5630] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci2-upstream-fs/strace-static-x86_64: Process 5657 attached , child_tidptr=0x55559396a6d0) = 5657 [pid 5657] set_robust_list(0x55559396a6e0, 24) = 0 [pid 5657] rt_sigprocmask(SIG_SETMASK, [] [pid 5630] rt_sigprocmask(SIG_SETMASK, [] [pid 5657] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5657] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5630] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5657] <... prctl resumed>) = 0 [pid 5657] setpgid(0, 0) = 0 [pid 5657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5657] write(3, "1000", 4) = 4 [pid 5657] close(3) = 0 [pid 5657] write(1, "executing program\n", 18) = 18 executing program [pid 5657] mkdirat(AT_FDCWD, "./sys", 0755) = -1 EEXIST (File exists) [pid 5657] mount(NULL, "./sys", "sysfs", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5657] openat(AT_FDCWD, "./sys/class/scsi_host/host0/scan", O_WRONLY) = 3 [pid 5657] write(3, "- - -", 5 [pid 5630] kill(-5657, SIGKILL) = 0 [pid 5630] kill(5657, SIGKILL) = 0 [pid 5630] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5630] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5630] getdents64(3, 0x55559396b790 /* 2 entries */, 32768) = 48 [pid 5630] getdents64(3, 0x55559396b790 /* 0 entries */, 32768) = 0 [pid 5630] close(3) = 0 [ 373.663041][ T38] INFO: task syz-executor206:5641 blocked for more than 143 seconds. [ 373.663085][ T38] Not tainted syzkaller #0 [ 373.663094][ T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 373.663104][ T38] task:syz-executor206 state:D stack:28264 pid:5641 tgid:5641 ppid:5626 task_flags:0x400140 flags:0x00080002 [ 373.663167][ T38] Call Trace: [ 373.663174][ T38] [ 373.663186][ T38] __schedule+0x16d9/0x5700 [ 373.663250][ T38] ? __pfx___schedule+0x10/0x10 [ 373.663282][ T38] rt_mutex_schedule+0x76/0xf0 [ 373.663304][ T38] rt_mutex_slowlock_block+0x55e/0x690 [ 373.663332][ T38] rt_mutex_slowlock+0x2d4/0x780 [ 373.663351][ T38] ? rt_mutex_slowlock+0x1f2/0x780 [ 373.663369][ T38] ? __pfx_rt_mutex_slowlock+0x10/0x10 [ 373.663398][ T38] ? scsi_scan_host_selected+0x19f/0x6c0 [ 373.663457][ T38] ? scsi_scan_host_selected+0x19f/0x6c0 [ 373.663477][ T38] mutex_lock_nested+0x168/0x1d0 [ 373.663499][ T38] scsi_scan_host_selected+0x19f/0x6c0 [ 373.663530][ T38] store_scan+0x4aa/0x540 [ 373.663556][ T38] ? __pfx_store_scan+0x10/0x10 [ 373.663581][ T38] ? lock_acquire+0x115/0x350 [ 373.663603][ T38] ? sysfs_file_kobj+0x1a/0x230 [ 373.663625][ T38] ? sysfs_unbreak_active_protection+0x20/0x40 [ 373.663642][ T38] ? sysfs_file_kobj+0x1a/0x230 [ 373.663657][ T38] ? sysfs_file_kobj+0x1a/0x230 [ 373.663674][ T38] ? sysfs_file_kobj+0x1e4/0x230 [ 373.663691][ T38] ? sysfs_kf_write+0x166/0x260 [ 373.663711][ T38] ? __pfx_sysfs_kf_write+0x10/0x10 [ 373.663727][ T38] kernfs_fop_write_iter+0x3a5/0x540 [ 373.663757][ T38] vfs_write+0x61e/0xbb0 [ 373.663784][ T38] ? __pfx_vfs_write+0x10/0x10 [ 373.663806][ T38] ? rt_spin_unlock+0x159/0x200 [ 373.663827][ T38] ? rt_spin_unlock+0x165/0x200 [ 373.663851][ T38] ksys_write+0x156/0x270 [ 373.663872][ T38] ? __pfx_ksys_write+0x10/0x10 [ 373.663900][ T38] do_syscall_64+0x166/0x520 [ 373.663923][ T38] ? trace_irq_disable+0x3b/0x140 [ 373.663948][ T38] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 373.663965][ T38] ? clear_bhb_loop+0x70/0xc0 [ 373.663985][ T38] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 373.664006][ T38] RIP: 0033:0x7f76fb59f8b9 [ 373.664023][ T38] RSP: 002b:00007ffe775c0958 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 373.664040][ T38] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f76fb59f8b9 [ 373.664052][ T38] RDX: 0000000000000005 RSI: 00002000000000c0 RDI: 0000000000000003 [ 373.664063][ T38] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 373.664073][ T38] R10: 0000000000000009 R11: 0000000000000246 R12: 000000000002e254 [ 373.664084][ T38] R13: 00007ffe775c096c R14: 0000200000000004 R15: 00007ffe775c0970 [ 373.664109][ T38] [ 373.664121][ T38] [ 373.664121][ T38] Showing all locks held in the system: [ 373.664132][ T38] locks held by khungtaskd/38: 1, last CPU#1: [ 373.664144][ T38] #0: ffffffff8e1c3c40 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 373.664196][ T38] locks held by kworker/u8:8/1110: 2, on CPU#1: [ 373.664207][ T38] #0: ffff88813ff64138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 373.664253][ T38] #1: ffffc90006287c40 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 373.665308][ T38] locks held by getty/5343: 2, on CPU#1: [ 373.665320][ T38] #0: ffff8880294ed0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 373.665361][ T38] #1: ffffc900044c32e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x460/0x1360 [ 373.665408][ T38] locks held by syz-executor206/5634: 4, on CPU#1: [ 373.665419][ T38] #0: ffff8880355c4510 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x231/0xbb0 [ 373.665472][ T38] #1: ffff888034533c78 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d9/0x540 [ 373.665520][ T38] #2: ffff8880278312d8 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x22c/0x540 [ 373.665571][ T38] #3: ffff888024ffc110 (&shost->scan_mutex){+.+.}-{4:4}, at: scsi_scan_host_selected+0x19f/0x6c0 [ 373.665616][ T38] locks held by syz-executor206/5641: 4, on CPU#0: [ 373.665627][ T38] #0: ffff8880355c4510 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x231/0xbb0 [ 373.665672][ T38] #1: ffff888034532878 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d9/0x540 [ 373.665719][ T38] #2: ffff8880278312d8 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x22c/0x540 [ 373.665770][ T38] #3: ffff888024ffc110 (&shost->scan_mutex){+.+.}-{4:4}, at: scsi_scan_host_selected+0x19f/0x6c0 [ 373.665814][ T38] locks held by syz-executor206/5648: 4, on CPU#0: [ 373.665825][ T38] #0: ffff8880355c4510 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x231/0xbb0 [ 373.665870][ T38] #1: ffff888034532478 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d9/0x540 [ 373.665917][ T38] #2: ffff8880278312d8 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x22c/0x540 [ 373.665968][ T38] #3: ffff888024ffc110 (&shost->scan_mutex){+.+.}-{4:4}, at: scsi_scan_host_selected+0x19f/0x6c0 [ 373.666012][ T38] locks held by syz-executor206/5649: 4, on CPU#0: [ 373.666024][ T38] #0: ffff8880355c4510 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x231/0xbb0 [ 373.666068][ T38] #1: ffff888034530c78 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d9/0x540 [ 373.666115][ T38] #2: ffff8880278312d8 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x22c/0x540 [ 373.666166][ T38] #3: ffff888024ffc110 (&shost->scan_mutex){+.+.}-{4:4}, at: scsi_scan_host_selected+0x19f/0x6c0 [ 373.666211][ T38] locks held by syz-executor206/5657: 4, on CPU#1: [ 373.666223][ T38] #0: ffff8880355c4510 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x231/0xbb0 [ 373.666273][ T38] #1: ffff888032458478 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1d9/0x540 [ 373.666320][ T38] #2: ffff8880278312d8 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x22c/0x540 [ 373.666372][ T38] #3: ffff888024ffc110 (&shost->scan_mutex){+.+.}-{4:4}, at: scsi_scan_host_selected+0x19f/0x6c0 [ 373.666463][ T38] [ 373.666469][ T38] ============================================= [ 373.666469][ T38] [ 373.666492][ T38] NMI backtrace for cpu 1 [ 373.666517][ T38] CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 373.666553][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 373.666562][ T38] Call Trace: [ 373.666570][ T38] [ 373.666577][ T38] dump_stack_lvl+0xe8/0x150 [ 373.666602][ T38] nmi_cpu_backtrace+0x274/0x2d0 [ 373.666620][ T38] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 373.666651][ T38] nmi_trigger_cpumask_backtrace+0x17d/0x390 [ 373.666672][ T38] sys_info+0x135/0x170 [ 373.666687][ T38] watchdog+0xfd7/0x1030 [ 373.666714][ T38] ? watchdog+0x1c7/0x1030 [ 373.666740][ T38] kthread+0x38b/0x470 [ 373.666757][ T38] ? __pfx_watchdog+0x10/0x10 [ 373.666776][ T38] ? __pfx_kthread+0x10/0x10 [ 373.666793][ T38] ret_from_fork+0x514/0xb70 [ 373.666812][ T38] ? __pfx_ret_from_fork+0x10/0x10 [ 373.666828][ T38] ? __switch_to+0xc89/0x1420 [ 373.666854][ T38] ? __pfx_kthread+0x10/0x10 [ 373.666871][ T38] ret_from_fork_asm+0x1a/0x30 [ 373.666898][ T38] [ 373.666918][ T38] Sending NMI from CPU 1 to CPUs 0: [ 373.666960][ C0] NMI backtrace for cpu 0 [ 373.666975][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 373.666996][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 373.667006][ C0] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 373.667034][ C0] Code: ac 61 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 33 cc 12 00 fb f4 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 [ 373.667050][ C0] RSP: 0018:ffffffff8de07ca0 EFLAGS: 00000242 [ 373.667066][ C0] RAX: 0000000000128d9d RBX: ffffffff819a8000 RCX: 8000000000000001 [ 373.667080][ C0] RDX: 0000000000000001 RSI: ffffffff8d8cb696 RDI: ffffffff8bcc2a80 [ 373.667093][ C0] RBP: ffffffff8de07d78 R08: ffff8880b8633e9b R09: 1ffff110170c67d3 [ 373.667107][ C0] R10: dffffc0000000000 R11: ffffed10170c67d4 R12: 0000000000000000 [ 373.667120][ C0] R13: 1ffffffff1bdedf8 R14: 1ffffffff1bc0f9c R15: dffffc0000000000 [ 373.667134][ C0] FS: 0000000000000000(0000) GS:ffff888125bce000(0000) knlGS:0000000000000000 [ 373.667149][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 373.667161][ C0] CR2: 0000555593973798 CR3: 0000000044536000 CR4: 00000000003526f0 [ 373.667178][ C0] Call Trace: [ 373.667185][ C0] [ 373.667192][ C0] default_idle+0x9/0x20 [ 373.667220][ C0] default_idle_call+0x72/0xb0 [ 373.667248][ C0] do_idle+0x2e0/0x540 [ 373.667273][ C0] ? __pfx_do_idle+0x10/0x10 [ 373.667298][ C0] ? do_idle+0x4d6/0x540 [ 373.667323][ C0] cpu_startup_entry+0x43/0x60 [ 373.667347][ C0] rest_init+0x378/0x3a0 [ 373.667365][ C0] ? __pfx_rest_init+0x10/0x10 [ 373.667386][ C0] ? __pfx_kernel_init+0x10/0x10 [ 373.667404][ C0] ? __pfx_acpi_hw_get_mode+0x10/0x10 [ 373.667423][ C0] ? acpi_ut_status_exit+0x120/0x1f0 [ 373.667448][ C0] ? acpi_ut_status_exit+0x120/0x1f0 [ 373.667473][ C0] ? acpi_enable_subsystem+0x286/0x3c0 [ 373.667500][ C0] start_kernel+0x392/0x3e0 [ 373.667539][ C0] x86_64_start_reservations+0x24/0x30 [ 373.667561][ C0] x86_64_start_kernel+0x137/0x1b0 [ 373.667582][ C0] common_startup_64+0x13e/0x157 [ 373.667614][ C0] [ 373.667976][ T38] Kernel panic - not syncing: hung_task: blocked tasks [ 374.578139][ T38] CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 374.587790][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 374.597871][ T38] Call Trace: [ 374.601173][ T38] [ 374.604131][ T38] vpanic+0x56d/0xa60 [ 374.608163][ T38] ? __pfx___schedule+0x10/0x10 [ 374.613049][ T38] ? __pfx_vpanic+0x10/0x10 [ 374.617582][ T38] panic+0xc5/0xd0 [ 374.621319][ T38] ? __pfx_panic+0x10/0x10 [ 374.625774][ T38] ? preempt_schedule_common+0x7f/0xd0 [ 374.631266][ T38] ? preempt_schedule_thunk+0x16/0x40 [ 374.636661][ T38] ? nmi_trigger_cpumask_backtrace+0x31a/0x390 [ 374.642886][ T38] ? nmi_trigger_cpumask_backtrace+0x31f/0x390 [ 374.649106][ T38] watchdog+0x1030/0x1030 [ 374.653499][ T38] ? watchdog+0x1c7/0x1030 [ 374.657955][ T38] kthread+0x38b/0x470 [ 374.662055][ T38] ? __pfx_watchdog+0x10/0x10 [ 374.666768][ T38] ? __pfx_kthread+0x10/0x10 [ 374.671391][ T38] ret_from_fork+0x514/0xb70 [ 374.676018][ T38] ? __pfx_ret_from_fork+0x10/0x10 [ 374.681157][ T38] ? __switch_to+0xc89/0x1420 [ 374.685863][ T38] ? __pfx_kthread+0x10/0x10 [ 374.690491][ T38] ret_from_fork_asm+0x1a/0x30 [ 374.695291][ T38] [ 374.698967][ T38] Kernel Offset: disabled [ 374.703315][ T38] Rebooting in 86400 seconds..