./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2571029849 <...> Warning: Permanently added '10.128.10.25' (ED25519) to the list of known hosts. execve("./syz-executor2571029849", ["./syz-executor2571029849"], 0x7fff2dc4d370 /* 10 vars */) = 0 brk(NULL) = 0x555555de3000 brk(0x555555de3d00) = 0x555555de3d00 arch_prctl(ARCH_SET_FS, 0x555555de3380) = 0 set_tid_address(0x555555de3650) = 5054 set_robust_list(0x555555de3660, 24) = 0 rseq(0x555555de3ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2571029849", 4096) = 28 getrandom("\x7f\x59\x27\xb1\x63\xc7\x34\xa1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555de3d00 brk(0x555555e04d00) = 0x555555e04d00 brk(0x555555e05000) = 0x555555e05000 mprotect(0x7f0b8d697000, 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./strace-static-x86_64: Process 5055 attached , child_tidptr=0x555555de3650) = 5055 [pid 5055] set_robust_list(0x555555de3660, 24) = 0 [pid 5055] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5055] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5055] setsid() = 1 [pid 5055] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5055] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5055] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5055] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5055] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5055] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5055] unshare(CLONE_NEWNS) = 0 [pid 5055] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5055] unshare(CLONE_NEWIPC) = 0 [pid 5055] unshare(CLONE_NEWCGROUP) = 0 [pid 5055] unshare(CLONE_NEWUTS) = 0 [pid 5055] unshare(CLONE_SYSVSEM) = 0 [pid 5055] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5055] write(3, "16777216", 8) = 8 [pid 5055] close(3) = 0 [pid 5055] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5055] write(3, "536870912", 9) = 9 [pid 5055] close(3) = 0 [pid 5055] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5055] write(3, "1024", 4) = 4 [pid 5055] close(3) = 0 [pid 5055] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5055] write(3, "8192", 4) = 4 [pid 5055] close(3) = 0 [pid 5055] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5055] write(3, "1024", 4) = 4 [pid 5055] close(3) = 0 [pid 5055] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5055] write(3, "1024", 4) = 4 [pid 5055] close(3) = 0 [pid 5055] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5055] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5055] close(3) = 0 [pid 5055] getpid() = 1 [pid 5055] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5055] kill(-2, SIGKILL) = 0 [pid 5055] kill(2, SIGKILL) = 0 [ 77.682785][ C0] hrtimer: interrupt took 7539667941 ns [pid 5064] <... sendmsg resumed>) = ? [pid 5064] +++ killed by SIGKILL +++ [pid 5055] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=2, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=1 /* 0.01 s */} --- [pid 5055] restart_syscall(<... resuming interrupted kill ...>) = 0 [pid 5055] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555de3650) = 3 [ 175.166456][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 175.173461][ C1] rcu: 0-...!: (1 ticks this GP) idle=3b94/1/0x4000000000000000 softirq=6057/6057 fqs=9 [ 175.183860][ C1] rcu: (detected by 1, t=10502 jiffies, g=6949, q=188 ncpus=2) [ 175.191506][ C1] Sending NMI from CPU 1 to CPUs 0: [ 175.196728][ C0] NMI backtrace for cpu 0 [ 175.196739][ C0] CPU: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.7.0-rc1-syzkaller-00012-g9bacdd8996c7 #0 [ 175.196757][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 175.196767][ C0] Workqueue: events_power_efficient gc_worker [ 175.196810][ C0] RIP: 0010:do_raw_spin_unlock+0x117/0x8b0 [ 175.196835][ C0] Code: 49 c7 45 00 ff ff ff ff 0f b6 04 2b 84 c0 0f 85 c9 03 00 00 41 c7 06 ff ff ff ff 48 c7 c0 60 b8 79 8d 48 c1 e8 03 80 3c 28 00 <74> 0c 48 c7 c7 60 b8 79 8d e8 9b d3 7b 00 48 83 3d 73 30 0b 0c 00 [ 175.196847][ C0] RSP: 0018:ffffc90000007c20 EFLAGS: 00000046 [ 175.196860][ C0] RAX: 1ffffffff1af370c RBX: 1ffff110042eac5e RCX: 0000000000000000 [ 175.196872][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880217562e8 [ 175.196882][ C0] RBP: dffffc0000000000 R08: ffff8880217562eb R09: 1ffff110042eac5d [ 175.196894][ C0] R10: dffffc0000000000 R11: ffffed10042eac5e R12: 1ffff110042eac5f [ 175.196906][ C0] R13: ffff8880217562f8 R14: ffff8880217562f0 R15: ffff8880217562e8 [ 175.196918][ C0] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 175.196931][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 175.196943][ C0] CR2: 0000000020000600 CR3: 000000000d730000 CR4: 00000000003506f0 [ 175.196956][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 175.196966][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 175.196976][ C0] Call Trace: [ 175.196983][ C0] [ 175.196991][ C0] ? nmi_cpu_backtrace+0x3be/0x4d0 [ 175.197015][ C0] ? read_lock_is_recursive+0x20/0x20 [ 175.197035][ C0] ? nmi_trigger_cpumask_backtrace+0x310/0x310 [ 175.197061][ C0] ? nmi_handle+0x2a/0x570 [ 175.197088][ C0] ? nmi_cpu_backtrace_handler+0xc/0x10 [ 175.197108][ C0] ? nmi_handle+0x14c/0x570 [ 175.197126][ C0] ? nmi_handle+0x2a/0x570 [ 175.197145][ C0] ? do_raw_spin_unlock+0x117/0x8b0 [ 175.197165][ C0] ? default_do_nmi+0x63/0x150 [ 175.197185][ C0] ? exc_nmi+0x121/0x210 [ 175.197203][ C0] ? end_repeat_nmi+0xf/0x2a [ 175.197229][ C0] ? do_raw_spin_unlock+0x117/0x8b0 [ 175.197250][ C0] ? do_raw_spin_unlock+0x117/0x8b0 [ 175.197271][ C0] ? do_raw_spin_unlock+0x117/0x8b0 [ 175.197291][ C0] [ 175.197296][ C0] [ 175.197301][ C0] ? taprio_set_budgets+0x32e/0x360 [ 175.197320][ C0] _raw_spin_unlock+0x1e/0x40 [ 175.197341][ C0] advance_sched+0x9bd/0xcb0 [ 175.197365][ C0] ? taprio_dequeue_from_txq+0x920/0x920 [ 175.197381][ C0] __hrtimer_run_queues+0x59f/0xd20 [ 175.197411][ C0] ? hrtimer_interrupt+0x980/0x980 [ 175.197429][ C0] ? ktime_get_update_offsets_now+0x40b/0x420 [ 175.197454][ C0] hrtimer_interrupt+0x396/0x980 [ 175.197485][ C0] __sysvec_apic_timer_interrupt+0x104/0x3a0 [ 175.197504][ C0] sysvec_apic_timer_interrupt+0x92/0xb0 [ 175.197525][ C0] [ 175.197530][ C0] [ 175.197535][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 175.197556][ C0] RIP: 0010:lock_acquire+0x25a/0x530 [ 175.197574][ C0] Code: 2b 00 74 08 4c 89 f7 e8 04 33 7d 00 f6 44 24 61 02 0f 85 8a 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25 [ 175.197586][ C0] RSP: 0018:ffffc900000d7940 EFLAGS: 00000206 [ 175.197599][ C0] RAX: 0000000000000001 RBX: 1ffff9200001af34 RCX: 0000000000000001 [ 175.197609][ C0] RDX: dffffc0000000000 RSI: ffffffff8b6ac0c0 RDI: ffffffff8bbdf300 [ 175.197621][ C0] RBP: ffffc900000d7a88 R08: ffffffff90dd4367 R09: 1ffffffff21ba86c [ 175.197633][ C0] R10: dffffc0000000000 R11: fffffbfff21ba86d R12: 1ffff9200001af30 [ 175.197644][ C0] R13: dffffc0000000000 R14: ffffc900000d79a0 R15: 0000000000000246 [ 175.197665][ C0] ? gc_worker+0x26b/0x15a0 [ 175.197687][ C0] ? read_lock_is_recursive+0x20/0x20 [ 175.197705][ C0] ? gc_worker+0x26b/0x15a0 [ 175.197726][ C0] ? __might_sleep+0xe0/0xe0 [ 175.197744][ C0] ? seqcount_lockdep_reader_access+0x1d7/0x220 [ 175.197772][ C0] gc_worker+0x28c/0x15a0 [ 175.197801][ C0] ? gc_worker+0x26b/0x15a0 [ 175.197822][ C0] ? gc_worker+0x26b/0x15a0 [ 175.197845][ C0] ? lockdep_hardirqs_on_prepare+0x43c/0x780 [ 175.197865][ C0] ? print_irqtrace_events+0x220/0x220 [ 175.197883][ C0] ? init_conntrack+0x1310/0x1310 [ 175.197908][ C0] ? process_scheduled_works+0x825/0x1420 [ 175.197927][ C0] process_scheduled_works+0x90f/0x1420 [ 175.197959][ C0] ? assign_work+0x3d0/0x3d0 [ 175.197980][ C0] ? assign_work+0x364/0x3d0 [ 175.198001][ C0] worker_thread+0xa5f/0x1000 [ 175.198030][ C0] kthread+0x2d3/0x370 [ 175.198051][ C0] ? pr_cont_work+0x5e0/0x5e0 [ 175.198068][ C0] ? kthread_blkcg+0xd0/0xd0 [ 175.198083][ C0] ret_from_fork+0x48/0x80 [ 175.198101][ C0] ? kthread_blkcg+0xd0/0xd0 [ 175.198116][ C0] ret_from_fork_asm+0x11/0x20 [ 175.198143][ C0] [ 175.198150][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.422 msecs [ 175.198723][ C1] rcu: rcu_preempt kthread starved for 9734 jiffies! g6949 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 175.688303][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 175.698286][ C1] rcu: RCU grace-period kthread stack dump: [ 175.704183][ C1] task:rcu_preempt state:R running task stack:26576 pid:17 tgid:17 ppid:2 flags:0x00004000 [ 175.715940][ C1] Call Trace: [ 175.719235][ C1] [ 175.722183][ C1] __schedule+0x1961/0x4ab0 [ 175.726736][ C1] ? release_firmware_map_entry+0x190/0x190 [ 175.732646][ C1] ? __lock_acquire+0x1fd0/0x1fd0 [ 175.737688][ C1] ? __asan_memset+0x23/0x40 [ 175.742300][ C1] ? lockdep_softirqs_off+0x430/0x430 [ 175.747686][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 175.753600][ C1] ? _raw_spin_unlock+0x40/0x40 [ 175.758475][ C1] ? schedule+0x8e/0x260 [ 175.762735][ C1] schedule+0x149/0x260 [ 175.766909][ C1] schedule_timeout+0x1bd/0x300 [ 175.771778][ C1] ? console_conditional_schedule+0x40/0x40 [ 175.777774][ C1] ? update_process_times+0x1b0/0x1b0 [ 175.783167][ C1] ? prepare_to_swait_event+0x32d/0x350 [ 175.788732][ C1] rcu_gp_fqs_loop+0x30a/0x1500 [ 175.793608][ C1] ? dyntick_save_progress_counter+0x2c0/0x2c0 [ 175.799784][ C1] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 175.805693][ C1] ? lockdep_hardirqs_on+0x98/0x140 [ 175.810908][ C1] ? rcu_gp_init+0x1600/0x1600 [ 175.815683][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 175.821597][ C1] ? finish_swait+0xd3/0x1e0 [ 175.826255][ C1] rcu_gp_kthread+0xa7/0x3b0 [ 175.830862][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 175.835992][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 175.841906][ C1] ? __kthread_parkme+0x168/0x1c0 [ 175.846956][ C1] kthread+0x2d3/0x370 [ 175.851039][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 175.856193][ C1] ? kthread_blkcg+0xd0/0xd0 [ 175.861029][ C1] ret_from_fork+0x48/0x80 [ 175.865518][ C1] ? kthread_blkcg+0xd0/0xd0 [ 175.870124][ C1] ret_from_fork_asm+0x11/0x20 [ 175.874920][ C1] [ 175.877956][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 175.884289][ C1] CPU: 1 PID: 1272 Comm: kworker/u4:6 Not tainted 6.7.0-rc1-syzkaller-00012-g9bacdd8996c7 #0 [ 175.894448][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 175.904514][ C1] Workqueue: events_unbound toggle_allocation_gate [ 175.911129][ C1] RIP: 0010:smp_call_function_many_cond+0x1832/0x2940 [ 175.917928][ C1] Code: 45 8b 65 00 44 89 e6 83 e6 01 31 ff e8 97 88 0b 00 41 83 e4 01 49 bc 00 00 00 00 00 fc ff df 75 07 e8 d2 84 0b 00 eb 38 f3 90 <42> 0f b6 04 23 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 b6 84 [ 175.937554][ C1] RSP: 0018:ffffc9000562f720 EFLAGS: 00000293 [ 175.943649][ C1] RAX: ffffffff8182f9fa RBX: 1ffff110173087c5 RCX: ffff8880201a0000 [ 175.951643][ C1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 175.959620][ C1] RBP: ffffc9000562f920 R08: ffffffff8182f9c9 R09: 1ffffffff21ba86c [ 175.967604][ C1] R10: dffffc0000000000 R11: fffffbfff21ba86d R12: dffffc0000000000 [ 175.975594][ C1] R13: ffff8880b9843e28 R14: ffff8880b993d480 R15: 0000000000000000 [ 175.983575][ C1] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 175.992556][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 175.999176][ C1] CR2: 00007ffe63960000 CR3: 000000000d730000 CR4: 00000000003506f0 [ 176.007168][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 176.015152][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 176.023132][ C1] Call Trace: [ 176.026441][ C1] [ 176.029294][ C1] ? rcu_check_gp_kthread_starvation+0x274/0x300 [ 176.035756][ C1] ? print_other_cpu_stall+0x14a0/0x15d0 [ 176.041415][ C1] ? atomic_notifier_call_chain+0x26/0x180 [ 176.047277][ C1] ? print_cpu_stall+0x5a0/0x5a0 [ 176.052253][ C1] ? atomic_notifier_call_chain+0x26/0x180 [ 176.058104][ C1] ? rcu_sched_clock_irq+0x9d9/0x1090 [ 176.063501][ C1] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 176.069531][ C1] ? rcu_gp_set_torture_wait+0x10/0x10 [ 176.075113][ C1] ? hrtimer_run_queues+0x167/0x450 [ 176.080334][ C1] ? acct_account_cputime+0x203/0x210 [ 176.085730][ C1] ? update_process_times+0x14b/0x1b0 [ 176.091209][ C1] ? tick_nohz_highres_handler+0x379/0x550 [ 176.097079][ C1] ? tick_setup_sched_timer+0x2f0/0x2f0 [ 176.102658][ C1] ? __hrtimer_run_queues+0x562/0xd20 [ 176.108067][ C1] ? hrtimer_interrupt+0x980/0x980 [ 176.113196][ C1] ? ktime_get_update_offsets_now+0x40b/0x420 [ 176.119292][ C1] ? hrtimer_interrupt+0x396/0x980 [ 176.124444][ C1] ? __sysvec_apic_timer_interrupt+0x104/0x3a0 [ 176.135658][ C1] ? sysvec_apic_timer_interrupt+0x92/0xb0 [ 176.141492][ C1] [ 176.144440][ C1] [ 176.147381][ C1] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 176.153560][ C1] ? smp_call_function_many_cond+0x1819/0x2940 [ 176.159743][ C1] ? smp_call_function_many_cond+0x184a/0x2940 [ 176.166023][ C1] ? smp_call_function_many_cond+0x1832/0x2940 [ 176.172250][ C1] ? text_poke_sync+0x30/0x30 [ 176.176957][ C1] ? __text_poke+0xd30/0xd30 [ 176.181565][ C1] ? text_poke+0xc0/0xc0 [ 176.186018][ C1] ? smp_call_function_many+0x40/0x40 [ 176.191421][ C1] ? __might_sleep+0xe0/0xe0 [ 176.196028][ C1] ? __mutex_trylock_common+0x182/0x2e0 [ 176.201586][ C1] ? __might_sleep+0xe0/0xe0 [ 176.206198][ C1] ? text_poke_sync+0x30/0x30 [ 176.210890][ C1] on_each_cpu_cond_mask+0x3f/0x80 [ 176.216118][ C1] text_poke_bp_batch+0x352/0xb30 [ 176.221180][ C1] ? text_poke_loc_init+0x860/0x860 [ 176.226391][ C1] ? mutex_lock_nested+0x20/0x20 [ 176.231347][ C1] ? arch_jump_label_transform_queue+0x97/0xf0 [ 176.237530][ C1] text_poke_finish+0x30/0x50 [ 176.242321][ C1] arch_jump_label_transform_apply+0x1c/0x30 [ 176.248342][ C1] static_key_enable_cpuslocked+0x132/0x260 [ 176.254256][ C1] static_key_enable+0x1a/0x20 [ 176.259030][ C1] toggle_allocation_gate+0xb5/0x250 [ 176.264340][ C1] ? show_object+0x70/0x70 [ 176.268798][ C1] ? print_irqtrace_events+0x220/0x220 [ 176.274283][ C1] ? process_scheduled_works+0x825/0x1420 [ 176.280190][ C1] process_scheduled_works+0x90f/0x1420 [ 176.285809][ C1] ? assign_work+0x3d0/0x3d0 [ 176.290512][ C1] ? assign_work+0x364/0x3d0 [ 176.295122][ C1] worker_thread+0xa5f/0x1000 [ 176.299822][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 176.305747][ C1] kthread+0x2d3/0x370 [ 176.309832][ C1] ? pr_cont_work+0x5e0/0x5e0 [ 176.314522][ C1] ? kthread_blkcg+0xd0/0xd0 [ 176.319211][ C1] ret_from_fork+0x48/0x80 [ 176.323641][ C1] ? kthread_blkcg+0xd0/0xd0 [ 176.328311][ C1] ret_from_fork_asm+0x11/0x20 [ 176.333111][ C1]