ci2-android-6-12-rust/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci2-android-6-12-rust/syz-executor38539348 <...> Warning: Permanently added '10.128.0.55' (ED25519) to the list of known hosts. execve("ci2-android-6-12-rust/syz-executor38539348", ["ci2-android-6-12-rust/syz-executor38539348"], 0x7fffcc83eaa0 /* 10 vars */) = 0 brk(NULL) = 0x55557fa81000 brk(0x55557fa81e00) = 0x55557fa81e00 arch_prctl(ARCH_SET_FS, 0x55557fa81480) = 0 set_tid_address(0x55557fa81750) = 312 set_robust_list(0x55557fa81760, 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}, 32, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci2-android-6-12-rust/syz-executor38539348", 4096) = 48 getrandom("\x00\xc2\x7c\x43\xb1\x01\x37\xb1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557fa81e00 brk(0x55557faa2e00) = 0x55557faa2e00 brk(0x55557faa3000) = 0x55557faa3000 mprotect(0x7fbdf32c5000, 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|SIGCHLD, child_tidptr=0x55557fa81750) = 313 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 write(3, "10000000000", 11) = 11 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 write(3, "20", 2) = 2 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 write(3, "100", 3) = 3 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 write(3, "7 4 1 3", 7) = 7 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/failslab/task-filter", O_WRONLY|O_CLOEXEC) = 3 write(3, "Y", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/task-filter", O_WRONLY|O_CLOEXEC) = 3 write(3, "Y", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/task-filter", O_WRONLY|O_CLOEXEC) = 3 write(3, "Y", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_usercopy/task-filter", O_WRONLY|O_CLOEXEC) = 3 write(3, "Y", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_make_request/task-filter", O_WRONLY|O_CLOEXEC) = 3 write(3, "Y", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_io_timeout/task-filter", O_WRONLY|O_CLOEXEC) = 3 write(3, "Y", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_iommufd/task-filter", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 write(3, "313", 3) = 3 close(3) = 0 kill(313, SIGKILL) = 0 ci2-android-6-12-rust/strace-static-x86_64: Process 313 attached [pid 313] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=313, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7fbdf3204100, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fbdf3207bd0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7fbdf3204100, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fbdf3207bd0}, NULL, 8) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55557fa81750) = 314 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 ci2-android-6-12-rust/strace-static-x86_64: Process 314 attached [pid 314] set_robust_list(0x55557fa81760, 24) = 0 [pid 314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 314] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 314] setpgid(0, 0) = 0 [pid 314] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 314] write(3, "1000", 4) = 4 [pid 314] close(3) = 0 [pid 314] write(1, "executing program\n", 18) = 18 [pid 314] futex(0x7fbdf32cbb4c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 314] rt_sigaction(SIGRT_1, {sa_handler=0x7fbdf322de50, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fbdf3207bd0}, NULL, 8) = 0 executing program [pid 314] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbdf31c5000 [pid 314] mprotect(0x7fbdf31c6000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 314] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 314] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbdf31e5990, parent_tid=0x7fbdf31e5990, exit_signal=0, stack=0x7fbdf31c5000, stack_size=0x20240, tls=0x7fbdf31e56c0}ci2-android-6-12-rust/strace-static-x86_64: Process 315 attached [pid 315] set_robust_list(0x7fbdf31e59a0, 24) = 0 [pid 315] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 315] futex(0x7fbdf32cbb48, FUTEX_WAIT_PRIVATE, 0, NULL [pid 314] <... clone3 resumed> => {parent_tid=[315]}, 88) = 315 [pid 314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 314] futex(0x7fbdf32cbb48, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 315] <... futex resumed>) = 0 [pid 315] pipe2( [pid 314] futex(0x7fbdf32cbb4c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 315] <... pipe2 resumed>[3, 4], 0) = 0 [pid 315] pipe2([5, 6], 0) = 0 [pid 315] pipe2([7, 8], 0) = 0 [pid 315] pipe2([9, 10], 0) = 0 [pid 315] pipe2([11, 12], 0) = 0 [pid 315] pipe2([13, 14], 0) = 0 [pid 315] pipe2([15, 16], 0) = 0 [pid 315] pipe2([17, 18], 0) = 0 [pid 315] pipe2([19, 20], 0) = 0 [pid 315] pipe2([21, 22], 0) = 0 [pid 315] pipe2([23, 24], 0) = 0 [pid 315] pipe2([25, 26], 0) = 0 [pid 315] pipe2([27, 28], 0) = 0 [pid 315] pipe2([29, 30], 0) = 0 [pid 315] pipe2([31, 32], 0) = 0 [pid 315] pipe2([33, 34], 0) = 0 [pid 315] pipe2([35, 36], 0) = 0 [pid 315] pipe2([37, 38], 0) = 0 [pid 315] pipe2([39, 40], 0) = 0 [pid 315] pipe2([41, 42], 0) = 0 [pid 315] pipe2([43, 44], 0) = 0 [pid 315] pipe2([45, 46], 0) = 0 [pid 315] pipe2([47, 48], 0) = 0 [pid 315] pipe2([49, 50], 0) = 0 [pid 315] pipe2([51, 52], 0) = 0 [pid 315] pipe2([53, 54], 0) = 0 [pid 315] pipe2([55, 56], 0) = 0 [pid 315] pipe2([57, 58], 0) = 0 [pid 315] pipe2([59, 60], 0) = 0 [pid 315] pipe2([61, 62], 0) = 0 [pid 315] pipe2([63, 64], 0) = 0 [pid 315] pipe2([65, 66], 0) = 0 [pid 315] pipe2([67, 68], 0) = 0 [pid 315] futex(0x7fbdf32cbb4c, FUTEX_WAKE_PRIVATE, 1000000 [pid 314] <... futex resumed>) = 0 [pid 314] futex(0x7fbdf32cbb48, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 314] futex(0x7fbdf32cbb4c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 315] <... futex resumed>) = 1 [pid 315] pipe2([69, 70], 0) = 0 [pid 315] futex(0x7fbdf32cbb4c, FUTEX_WAKE_PRIVATE, 1000000 [pid 314] <... futex resumed>) = 0 [pid 314] futex(0x7fbdf32cbb48, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 315] <... futex resumed>) = 1 [pid 314] futex(0x7fbdf32cbb4c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 315] mkdirat(AT_FDCWD, "./mnt", 0777) = 0 [pid 315] futex(0x7fbdf32cbb4c, FUTEX_WAKE_PRIVATE, 1000000 [pid 314] <... futex resumed>) = 0 [pid 314] futex(0x7fbdf32cbb48, FUTEX_WAKE_PRIVATE, 1000000 [pid 315] <... futex resumed>) = 1 [pid 314] <... futex resumed>) = 0 [pid 315] mount(NULL, "./mnt", "9p", 0, "trans=fd,rfdno=0x0000000000000043,wfdno=0x0000000000000046," [ 147.376209][ T36] audit: type=1400 audit(1794692479.849:64): avc: denied { execmem } for pid=312 comm="syz-executor385" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [pid 314] futex(0x7fbdf32cbb4c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}) = -1 ETIMEDOUT (Connection timed out) [pid 314] futex(0x7fbdf32cbb5c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 314] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fbdf31a4000 [pid 314] mprotect(0x7fbdf31a5000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 314] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 314] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fbdf31c4990, parent_tid=0x7fbdf31c4990, exit_signal=0, stack=0x7fbdf31a4000, stack_size=0x20240, tls=0x7fbdf31c46c0}ci2-android-6-12-rust/strace-static-x86_64: Process 316 attached [pid 316] set_robust_list(0x7fbdf31c49a0, 24) = 0 [pid 316] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 316] futex(0x7fbdf32cbb58, FUTEX_WAIT_PRIVATE, 0, NULL [pid 314] <... clone3 resumed> => {parent_tid=[316]}, 88) = 316 [pid 314] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 314] futex(0x7fbdf32cbb58, FUTEX_WAKE_PRIVATE, 1000000 [pid 316] <... futex resumed>) = 0 [pid 314] <... futex resumed>) = 1 [pid 316] write(68, "\x15\x00\x00\x00\x65\xff\xff\x00\x20\x04\x00\x08\x00\x39\x50\x32\x30\x30\x30\x2e\x4c", 21 [pid 314] futex(0x7fbdf32cbb5c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 316] <... write resumed>) = 21 [pid 316] futex(0x7fbdf32cbb5c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 314] <... futex resumed>) = 0 [pid 316] futex(0x7fbdf32cbb58, FUTEX_WAIT_PRIVATE, 0, NULL [pid 314] futex(0x7fbdf32cbb58, FUTEX_WAKE_PRIVATE, 1000000 [pid 316] <... futex resumed>) = 0 [pid 314] <... futex resumed>) = 1 [pid 316] write(68, "\xa0\x00\x00\x00\x19\x00\x00\xb5\x38\x00\x00\x00\x00\x00\x00\x40\x02\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\xae\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 160 [pid 314] futex(0x7fbdf32cbb5c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 316] <... write resumed>) = 160 [pid 316] futex(0x7fbdf32cbb5c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 316] futex(0x7fbdf32cbb58, FUTEX_WAIT_PRIVATE, 0, NULL [pid 314] <... futex resumed>) = 0 [pid 314] futex(0x7fbdf32cbb58, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 316] <... futex resumed>) = 0 [pid 314] futex(0x7fbdf32cbb5c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [ 147.405811][ T36] audit: type=1400 audit(1794692479.879:65): avc: denied { mounton } for pid=314 comm="syz-executor385" path="/root/mnt" dev="sda1" ino=2025 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [pid 316] sync( [pid 314] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 314] exit_group(0) = ? [pid 312] kill(-314, SIGKILL) = 0 [pid 312] kill(314, SIGKILL) = 0 [pid 312] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 312] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 312] getdents64(3, 0x55557fa82820 /* 2 entries */, 32768) = 48 [pid 312] getdents64(3, 0x55557fa82820 /* 0 entries */, 32768) = 0 [pid 312] close(3) = 0 [ 290.690792][ T37] INFO: task syz-executor385:316 blocked for more than 122 seconds. [ 290.699023][ T37] Not tainted syzkaller #0 [ 290.703983][ T37] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 290.712721][ T37] task:syz-executor385 state:D stack:0 pid:316 tgid:314 ppid:312 flags:0x00004004 [ 290.723107][ T37] Call Trace: [ 290.726386][ T37] [ 290.729304][ T37] __schedule+0x16e0/0x2380 [ 290.733948][ T37] ? __sched_text_start+0x10/0x10 [ 290.738972][ T37] ? _raw_spin_lock_irqsave+0xc1/0x160 [ 290.744463][ T37] ? mutex_unlock+0x90/0x240 [ 290.749057][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 290.754911][ T37] ? prepare_to_wait_event+0x40f/0x450 [ 290.760516][ T37] schedule+0xc1/0x170 [ 290.764606][ T37] super_lock+0x168/0x330 [ 290.769072][ T37] ? user_get_super+0x350/0x350 [ 290.773957][ T37] ? __cfi_var_wake_function+0x10/0x10 [ 290.779418][ T37] ? __kasan_check_write+0x18/0x20 [ 290.784643][ T37] iterate_supers+0x86/0x570 [ 290.789264][ T37] ? __cfi_sync_inodes_one_sb+0x10/0x10 [ 290.794920][ T37] ksys_sync+0xa1/0x170 [ 290.799079][ T37] ? __cfi_ksys_sync+0x10/0x10 [ 290.803884][ T37] __ia32_sys_sync+0x12/0x20 [ 290.808500][ T37] x64_sys_call+0x2a58/0x2ee0 [ 290.813256][ T37] do_syscall_64+0x57/0xf0 [ 290.817673][ T37] ? clear_bhb_loop+0x50/0xa0 [ 290.822363][ T37] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 290.828267][ T37] RIP: 0033:0x7fbdf321b1d9 [ 290.832842][ T37] RSP: 002b:00007fbdf31c4158 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 [ 290.841472][ T37] RAX: ffffffffffffffda RBX: 00007fbdf32cbb58 RCX: 00007fbdf321b1d9 [ 290.849431][ T37] RDX: 00007fbdf321b1d9 RSI: 00007fbdf329c6c0 RDI: 0000000000000080 [ 290.857418][ T37] RBP: 00007fbdf32cbb50 R08: 00007fbdf31c4cdc R09: 00007fbdf32cbb58 [ 290.865428][ T37] R10: 00007fbdf31c4cdc R11: 0000000000000246 R12: 00007fbdf32cbb5c [ 290.873430][ T37] R13: 000000000000006e R14: 00007ffdbf1e7000 R15: 00007ffdbf1e70e8 [ 290.881504][ T37] [ 290.884550][ T37] NMI backtrace for cpu 1 [ 290.884610][ T37] CPU: 1 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 4c932c043eb01f9e3eebd51d42a946ef7c91072c [ 290.884629][ T37] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 [ 290.884635][ T37] Call Trace: [ 290.884639][ T37] [ 290.884643][ T37] __dump_stack+0x21/0x30 [ 290.884656][ T37] dump_stack_lvl+0x140/0x1c0 [ 290.884666][ T37] ? __cfi_dump_stack_lvl+0x10/0x10 [ 290.884676][ T37] ? _raw_spin_unlock_irqrestore+0x4a/0x70 [ 290.884689][ T37] dump_stack+0x19/0x20 [ 290.884698][ T37] nmi_cpu_backtrace+0x2ba/0x2d0 [ 290.884709][ T37] ? __cfi_nmi_cpu_backtrace+0x10/0x10 [ 290.884719][ T37] ? rcu_read_unlock_special+0x150/0x420 [ 290.884760][ T37] ? sched_show_task+0x380/0x540 [ 290.884791][ T37] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10 [ 290.884842][ T37] ? __cfi_nmi_raise_cpu_backtrace+0x10/0x10 [ 290.884857][ T37] nmi_trigger_cpumask_backtrace+0x142/0x2c0 [ 290.884868][ T37] arch_trigger_cpumask_backtrace+0x14/0x20 [ 290.884883][ T37] cpumask_backtrace+0x1f/0x30 [ 290.884893][ T37] watchdog+0xe45/0xf90 [ 290.884950][ T37] ? __kasan_check_write+0x18/0x20 [ 290.884966][ T37] ? __cfi_watchdog+0x10/0x10 [ 290.884979][ T37] ? __kasan_check_read+0x15/0x20 [ 290.884992][ T37] ? __kthread_parkme+0x12f/0x180 [ 290.885025][ T37] kthread+0x2c7/0x360 [ 290.885057][ T37] ? __cfi_watchdog+0x10/0x10 [ 290.885071][ T37] ? __cfi_kthread+0x10/0x10 [ 290.885083][ T37] ret_from_fork+0x64/0xa0 [ 290.885113][ T37] ? __cfi_kthread+0x10/0x10 [ 290.885125][ T37] ret_from_fork_asm+0x1a/0x30 [ 290.885137][ T37] [ 290.885141][ T37] Sending NMI from CPU 1 to CPUs 0: [ 291.049883][ C0] NMI backtrace for cpu 0 [ 291.049908][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 4c932c043eb01f9e3eebd51d42a946ef7c91072c [ 291.049926][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026 [ 291.049935][ C0] RIP: 0010:pv_native_safe_halt+0x13/0x20 [ 291.049960][ C0] Code: cc cc cc cc cc cc cc b8 3d 6b 63 fe 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 83 79 3c 00 55 48 89 e5 fb f4 <5d> c3 cc cc cc cc cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90 [ 291.049971][ C0] RSP: 0018:ffffffff87c07da0 EFLAGS: 000002c2 [ 291.049984][ C0] RAX: ffff8881f6c00000 RBX: ffffffff87c156c0 RCX: ffffffff85aae53d [ 291.049994][ C0] RDX: 0000000000000001 RSI: 0000000000000004 RDI: 00000000000284dc [ 291.050003][ C0] RBP: ffffffff87c07da0 R08: ffff8881f6c396fb R09: 1ffff1103ed872df [ 291.050013][ C0] R10: dffffc0000000000 R11: ffffed103ed872e0 R12: 0000000000000000 [ 291.050023][ C0] R13: 1ffffffff0f82ad8 R14: dffffc0000000000 R15: ffffffff886dda28 [ 291.050033][ C0] FS: 0000000000000000(0000) GS:ffff8881f6c00000(0000) knlGS:0000000000000000 [ 291.050045][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 291.050054][ C0] CR2: 000055557fa81450 CR3: 000000010d762000 CR4: 00000000003526b0 [ 291.050067][ C0] Call Trace: [ 291.050072][ C0] [ 291.050079][ C0] default_idle+0x17/0x30 [ 291.050093][ C0] arch_cpu_idle+0xd/0x20 [ 291.050105][ C0] default_idle_call+0x3e/0x80 [ 291.050118][ C0] do_idle+0x1df/0x570 [ 291.050195][ C0] ? idle_inject_timer_fn+0x80/0x80 [ 291.050211][ C0] ? __cfi_set_cpus_allowed_ptr+0x10/0x10 [ 291.050250][ C0] ? radix_tree_lookup+0x250/0x2a0 [ 291.050266][ C0] cpu_startup_entry+0x47/0x60 [ 291.050282][ C0] rest_init+0x10b/0x130 [ 291.050295][ C0] ? __cfi_x86_late_time_init+0x10/0x10 [ 291.050311][ C0] start_kernel+0x46a/0x4bb [ 291.050325][ C0] x86_64_start_reservations+0x2e/0x30 [ 291.050341][ C0] x86_64_start_kernel+0x6a/0x7b [ 291.050356][ C0] common_startup_64+0x13b/0x157 [ 291.050394][ C0]