./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor183553603 <...> Warning: Permanently added '10.128.1.154' (ED25519) to the list of known hosts. execve("./syz-executor183553603", ["./syz-executor183553603"], 0x7fff97be5390 /* 10 vars */) = 0 brk(NULL) = 0x555565ce9000 brk(0x555565ce9d00) = 0x555565ce9d00 arch_prctl(ARCH_SET_FS, 0x555565ce9380) = 0 set_tid_address(0x555565ce9650) = 5057 set_robust_list(0x555565ce9660, 24) = 0 rseq(0x555565ce9ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor183553603", 4096) = 27 getrandom("\xe8\xe7\xc3\xbe\x4c\xc0\x09\x2c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555565ce9d00 brk(0x555565d0ad00) = 0x555565d0ad00 brk(0x555565d0b000) = 0x555565d0b000 mprotect(0x7f4ebba9c000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555565ce9650) = 5058 ./strace-static-x86_64: Process 5058 attached [pid 5058] set_robust_list(0x555565ce9660, 24) = 0 [pid 5058] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5058] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5058] setsid() = 1 [pid 5058] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5058] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5058] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5058] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5058] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5058] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5058] unshare(CLONE_NEWNS) = 0 [pid 5058] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5058] unshare(CLONE_NEWIPC) = 0 [pid 5058] unshare(CLONE_NEWCGROUP) = 0 [pid 5058] unshare(CLONE_NEWUTS) = 0 [pid 5058] unshare(CLONE_SYSVSEM) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "16777216", 8) = 8 [pid 5058] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "536870912", 9) = 9 [pid 5058] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "1024", 4) = 4 [pid 5058] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "8192", 4) = 4 [pid 5058] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "1024", 4) = 4 [pid 5058] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "1024", 4) = 4 [pid 5058] close(3) = 0 [pid 5058] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5058] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5058] close(3) = 0 [pid 5058] getpid() = 1 [pid 5058] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 5d 41 5e 41 5f 5d c3 cc cc cc cc 83 fb 03 41 b9 02 00 00 00 44 [ 187.448274][ C0] RSP: 0018:ffffc90000007a08 EFLAGS: 00000046 [ 187.448290][ C0] RAX: 0000000000000001 RBX: ffffffff92995e08 RCX: 0b5cb9cdf91e2800 [ 187.448303][ C0] RDX: 0000000000000001 RSI: ffffffff8de95158 RDI: ffffffff8de94680 [ 187.448315][ C0] RBP: ffffc90000007a20 R08: ffffffff92cae507 R09: 1ffffffff2595ca0 [ 187.448329][ C0] R10: dffffc0000000000 R11: fffffbfff2595ca1 R12: ffffffff8de94680 [ 187.448342][ C0] R13: ffffffff8de95178 R14: 58cce5e7c8d5ebdc R15: ffffffff8de94680 [ 187.448355][ C0] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 187.448370][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 187.448382][ C0] CR2: 00007f4ebba61a10 CR3: 00000000791ca000 CR4: 00000000003506f0 [ 187.448397][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 187.448407][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 187.448418][ C0] Call Trace: [ 187.448426][ C0] [ 187.448433][ C0] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 187.448460][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 187.448479][ C0] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 187.448508][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 187.448530][ C0] ? nmi_handle+0x14f/0x580 [ 187.448547][ C0] ? nmi_handle+0x2a/0x580 [ 187.448565][ C0] ? validate_chain+0x602/0x58e0 [ 187.448585][ C0] ? default_do_nmi+0x63/0x160 [ 187.448607][ C0] ? exc_nmi+0x123/0x1f0 [ 187.448627][ C0] ? end_repeat_nmi+0xf/0x53 [ 187.448653][ C0] ? validate_chain+0x602/0x58e0 [ 187.448675][ C0] ? validate_chain+0x602/0x58e0 [ 187.448696][ C0] ? validate_chain+0x602/0x58e0 [ 187.448717][ C0] [ 187.448723][ C0] [ 187.448730][ C0] __lock_acquire+0x1346/0x1fd0 [ 187.448755][ C0] lock_acquire+0x1e4/0x530 [ 187.448772][ C0] ? advance_sched+0xa02/0xca0 [ 187.448799][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 187.448816][ C0] ? advance_sched+0x9b4/0xca0 [ 187.448833][ C0] ? do_raw_spin_lock+0x14f/0x370 [ 187.448858][ C0] ? __pfx_lock_release+0x10/0x10 [ 187.448878][ C0] ? do_raw_spin_unlock+0x13c/0x8b0 [ 187.448902][ C0] ? taprio_set_budgets+0x32c/0x370 [ 187.448921][ C0] ? advance_sched+0xa02/0xca0 [ 187.448940][ C0] advance_sched+0xa1e/0xca0 [ 187.448958][ C0] ? advance_sched+0xa02/0xca0 [ 187.448983][ C0] ? __pfx_advance_sched+0x10/0x10 [ 187.449002][ C0] __hrtimer_run_queues+0x595/0xd00 [ 187.449033][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 187.449056][ C0] ? ktime_get_update_offsets_now+0x411/0x430 [ 187.449077][ C0] hrtimer_interrupt+0x396/0x990 [ 187.449110][ C0] __sysvec_apic_timer_interrupt+0x107/0x3a0 [ 187.449150][ C0] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 187.449175][ C0] [ 187.449180][ C0] [ 187.449186][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 187.449206][ C0] RIP: 0010:acpi_safe_halt+0x21/0x30 [ 187.449225][ C0] Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 40 d0 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 95 ec 9b 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 [ 187.449238][ C0] RSP: 0018:ffffffff8de07ca8 EFLAGS: 00000246 [ 187.449252][ C0] RAX: ffffffff8de94680 RBX: ffff88801aea3064 RCX: 000000000001cf39 [ 187.449263][ C0] RDX: 0000000000000001 RSI: ffff88801aea3000 RDI: ffff88801aea3064 [ 187.449281][ C0] RBP: 000000000003a0f8 R08: ffff8880b9437d0b R09: 1ffff11017286fa1 [ 187.449293][ C0] R10: dffffc0000000000 R11: ffffffff8b6bc600 R12: ffff88801c329800 [ 187.449305][ C0] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8e8948a0 [ 187.449318][ C0] ? __pfx_acpi_idle_enter+0x10/0x10 [ 187.449342][ C0] acpi_idle_enter+0xe4/0x140 [ 187.449361][ C0] cpuidle_enter_state+0x118/0x490 [ 187.449378][ C0] ? __pfx_menu_select+0x10/0x10 [ 187.449401][ C0] cpuidle_enter+0x5d/0xa0 [ 187.449419][ C0] do_idle+0x375/0x5d0 [ 187.449436][ C0] ? __pfx___schedule+0x10/0x10 [ 187.449465][ C0] ? __pfx_do_idle+0x10/0x10 [ 187.449483][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 187.449508][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 187.449535][ C0] ? rest_init+0x35/0x300 [ 187.449553][ C0] ? rest_init+0x35/0x300 [ 187.449570][ C0] cpu_startup_entry+0x42/0x60 [ 187.449588][ C0] rest_init+0x2e0/0x300 [ 187.449606][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 187.449625][ C0] arch_call_rest_init+0xe/0x10 [ 187.449649][ C0] start_kernel+0x47a/0x500 [ 187.449672][ C0] x86_64_start_reservations+0x2a/0x30 [ 187.449691][ C0] x86_64_start_kernel+0x99/0xa0 [ 187.449707][ C0] common_startup_64+0x13e/0x147 [ 187.449733][ C0] [ 187.449741][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.573 msecs [ 187.450162][ C1] rcu: rcu_preempt kthread timer wakeup didn't happen for 10501 jiffies! g8097 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 187.962470][ C1] rcu: Possible timer handling issue on cpu=0 timer-softirq=2794 [ 187.970292][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g8097 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 187.981591][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 187.991608][ C1] rcu: RCU grace-period kthread stack dump: [ 187.997510][ C1] task:rcu_preempt state:I stack:24176 pid:16 tgid:16 ppid:2 flags:0x00004000 [ 188.007701][ C1] Call Trace: [ 188.010997][ C1] [ 188.013952][ C1] __schedule+0x1781/0x49d0 [ 188.018520][ C1] ? __pfx___schedule+0x10/0x10 [ 188.023405][ C1] ? __pfx_lock_release+0x10/0x10 [ 188.028463][ C1] ? __asan_memset+0x23/0x50 [ 188.033090][ C1] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 188.038917][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 188.045275][ C1] ? schedule+0x90/0x320 [ 188.049547][ C1] schedule+0x14b/0x320 [ 188.053741][ C1] schedule_timeout+0x1be/0x310 [ 188.058618][ C1] ? __pfx_schedule_timeout+0x10/0x10 [ 188.064020][ C1] ? __pfx_process_timeout+0x10/0x10 [ 188.069335][ C1] ? prepare_to_swait_event+0x32e/0x350 [ 188.074920][ C1] rcu_gp_fqs_loop+0x2df/0x1370 [ 188.079803][ C1] ? __pfx_rcu_gp_init+0x10/0x10 [ 188.084776][ C1] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 188.090707][ C1] ? lockdep_hardirqs_on+0x99/0x150 [ 188.095945][ C1] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 188.101268][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 188.107202][ C1] ? finish_swait+0xd4/0x1e0 [ 188.111833][ C1] rcu_gp_kthread+0xa7/0x3b0 [ 188.116458][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 188.121686][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 188.127619][ C1] ? __kthread_parkme+0x169/0x1d0 [ 188.132760][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 188.137993][ C1] kthread+0x2f0/0x390 [ 188.142087][ C1] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 188.147316][ C1] ? __pfx_kthread+0x10/0x10 [ 188.151934][ C1] ret_from_fork+0x4b/0x80 [ 188.156421][ C1] ? __pfx_kthread+0x10/0x10 [ 188.161038][ C1] ret_from_fork_asm+0x1a/0x30 [ 188.165848][ C1]