Warning: Permanently added '10.128.0.184' (ED25519) to the list of known hosts. executing program executing program executing program [ 179.593299][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 179.600370][ C0] (detected by 0, t=10502 jiffies, g=3257, q=119) [ 179.606868][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294955088-4294944586), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 179.620222][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g3257 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 179.631324][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 179.641286][ C0] rcu: RCU grace-period kthread stack dump: [ 179.647175][ C0] task:rcu_preempt state:R running task stack:27064 pid: 15 ppid: 2 flags:0x00004000 [ 179.657962][ C0] Call Trace: [ 179.661233][ C0] [ 179.664158][ C0] __schedule+0x12c4/0x45b0 [ 179.668683][ C0] ? _raw_spin_unlock_irqrestore+0x8b/0x130 [ 179.674577][ C0] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 179.680487][ C0] ? __mod_timer+0xa8e/0xeb0 [ 179.685083][ C0] ? release_firmware_map_entry+0x190/0x190 [ 179.690978][ C0] ? mod_timer_pending+0x20/0x20 [ 179.695911][ C0] ? lockdep_softirqs_off+0x420/0x420 [ 179.701280][ C0] schedule+0x11b/0x1f0 [ 179.705614][ C0] schedule_timeout+0x1b9/0x300 [ 179.710463][ C0] ? console_conditional_schedule+0x40/0x40 [ 179.716360][ C0] ? update_process_times+0x200/0x200 [ 179.721745][ C0] ? prepare_to_swait_event+0x321/0x340 [ 179.727318][ C0] rcu_gp_fqs_loop+0x2bf/0x1080 [ 179.732173][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 179.737366][ C0] ? lockdep_hardirqs_on+0x94/0x130 [ 179.742562][ C0] ? rcu_gp_init+0xdae/0x1140 [ 179.747235][ C0] ? rcu_gp_init+0x1140/0x1140 [ 179.751998][ C0] ? finish_swait+0xc5/0x1d0 [ 179.756585][ C0] rcu_gp_kthread+0xa4/0x360 [ 179.761170][ C0] ? _raw_spin_unlock+0x40/0x40 [ 179.766025][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 179.771223][ C0] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 179.777118][ C0] ? __kthread_parkme+0x15c/0x1c0 [ 179.782152][ C0] kthread+0x3f6/0x4f0 [ 179.786216][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 179.791327][ C0] ? kthread_blkcg+0xd0/0xd0 [ 179.795917][ C0] ret_from_fork+0x1f/0x30 [ 179.800429][ C0] [ 179.803448][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 179.809767][ C0] NMI backtrace for cpu 0 [ 179.814184][ C0] CPU: 0 PID: 3594 Comm: syz-executor393 Not tainted 5.15.167-syzkaller #0 [ 179.822767][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 179.832816][ C0] Call Trace: [ 179.836090][ C0] [ 179.838926][ C0] dump_stack_lvl+0x1e3/0x2d0 [ 179.843601][ C0] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 179.849231][ C0] ? panic+0x860/0x860 [ 179.853307][ C0] nmi_cpu_backtrace+0x46a/0x4a0 [ 179.858239][ C0] ? __wake_up_klogd+0xd5/0x100 [ 179.863085][ C0] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 179.869231][ C0] ? _printk+0xd1/0x120 [ 179.873387][ C0] ? cpu_online+0x1f/0x40 [ 179.877803][ C0] ? panic+0x860/0x860 [ 179.881876][ C0] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 179.887938][ C0] nmi_trigger_cpumask_backtrace+0x181/0x2a0 [ 179.893920][ C0] rcu_check_gp_kthread_starvation+0x1d2/0x240 [ 179.900081][ C0] print_other_cpu_stall+0x137a/0x14d0 [ 179.905575][ C0] ? print_cpu_stall+0x600/0x600 [ 179.910642][ C0] ? __lock_acquire+0x1ff0/0x1ff0 [ 179.915694][ C0] ? do_raw_spin_unlock+0x137/0x8b0 [ 179.920907][ C0] rcu_sched_clock_irq+0xa38/0x1150 [ 179.926117][ C0] ? rcutree_dead_cpu+0x20/0x20 [ 179.930976][ C0] ? hrtimer_run_queues+0x163/0x450 [ 179.936177][ C0] ? account_process_tick+0x232/0x3a0 [ 179.941548][ C0] update_process_times+0x196/0x200 [ 179.946754][ C0] tick_sched_timer+0x386/0x550 [ 179.951610][ C0] ? tick_setup_sched_timer+0x2d0/0x2d0 [ 179.957154][ C0] __hrtimer_run_queues+0x55b/0xcf0 [ 179.962365][ C0] ? hrtimer_interrupt+0x980/0x980 [ 179.967468][ C0] ? ktime_get_update_offsets_now+0x407/0x420 [ 179.973544][ C0] hrtimer_interrupt+0x392/0x980 [ 179.978498][ C0] __sysvec_apic_timer_interrupt+0x139/0x470 [ 179.984479][ C0] sysvec_apic_timer_interrupt+0x8c/0xb0 [ 179.990110][ C0] [ 179.993033][ C0] [ 179.995953][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 180.001929][ C0] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 [ 180.007732][ C0] Code: 51 67 f6 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 4e ed 24 f7 48 89 df e8 26 41 26 f7 e8 f1 f4 48 f7 fb bf 01 00 00 00 06 87 19 f7 65 8b 05 87 89 c4 75 85 c0 74 02 5b c3 e8 54 a6 c2 [ 180.027331][ C0] RSP: 0018:ffffc90002e87bc0 EFLAGS: 00000282 [ 180.033400][ C0] RAX: 1027cf57d5a75400 RBX: ffff8880285d9bc0 RCX: ffffffff96868f03 [ 180.041365][ C0] RDX: dffffc0000000000 RSI: ffffffff8a8b2b00 RDI: 0000000000000001 [ 180.049330][ C0] RBP: 0000000000000000 R08: ffffffff8186db50 R09: ffffed10050bb379 [ 180.057333][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000021 [ 180.065332][ C0] R13: dffffc0000000000 R14: ffff8880285da058 R15: ffff8880285d9bc0 [ 180.073564][ C0] ? trace_hardirqs_on+0x30/0x80 [ 180.078514][ C0] get_signal+0x13ee/0x14e0 [ 180.083027][ C0] arch_do_signal_or_restart+0xc3/0x1890 [ 180.088657][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x250/0x250 [ 180.095070][ C0] ? __might_fault+0xb4/0x110 [ 180.099746][ C0] ? _copy_from_user+0x10f/0x170 [ 180.104682][ C0] ? restore_altstack+0x274/0x400 [ 180.109704][ C0] ? get_sigframe_size+0x10/0x10 [ 180.114641][ C0] ? __ia32_sys_sigaltstack+0x60/0x60 [ 180.120103][ C0] ? __do_sys_rt_sigreturn+0x19d/0x250 [ 180.125561][ C0] ? exit_to_user_mode_loop+0x39/0x130 [ 180.131027][ C0] exit_to_user_mode_loop+0x97/0x130 [ 180.136311][ C0] exit_to_user_mode_prepare+0xb1/0x140 [ 180.142029][ C0] syscall_exit_to_user_mode+0x5d/0x240 [ 180.147594][ C0] do_syscall_64+0x47/0xb0 [ 180.152006][ C0] ? clear_bhb_loop+0x15/0x70 [ 180.156846][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 180.162753][ C0] RIP: 0033:0x7f9d161a5b29 [ 180.167279][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 71 1d 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 [ 180.187055][ C0] RSP: 002b:00007ffc135323d8 EFLAGS: 00000246 [ 180.193216][ C0] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f9d161a5b29 [ 180.201187][ C0] RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000 [ 180.209243][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 180.217302][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9d161f5159 [ 180.225269][ C0] R13: 00007ffc13532700 R14: 00007ffc13532410 R15: 0000000000000000 [ 180.233255][ C0]