Warning: Permanently added '10.128.0.254' (ED25519) to the list of known hosts. executing program executing program [ 179.443821][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 179.450897][ C0] (detected by 0, t=10502 jiffies, g=4229, q=88) [ 179.457307][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294955066-4294944563), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 179.470758][ C0] rcu: rcu_preempt kthread starved for 10504 jiffies! g4229 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 179.481863][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 179.491830][ C0] rcu: RCU grace-period kthread stack dump: [ 179.498231][ C0] task:rcu_preempt state:R running task stack:26816 pid: 15 ppid: 2 flags:0x00004000 [ 179.509021][ C0] Call Trace: [ 179.512298][ C0] [ 179.515228][ C0] __schedule+0x12c4/0x45b0 [ 179.519756][ C0] ? _raw_spin_unlock_irqrestore+0x8b/0x130 [ 179.525659][ C0] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 179.531559][ C0] ? __mod_timer+0xa8e/0xeb0 [ 179.536153][ C0] ? release_firmware_map_entry+0x190/0x190 [ 179.542046][ C0] ? mod_timer_pending+0x20/0x20 [ 179.546988][ C0] ? lockdep_softirqs_off+0x420/0x420 [ 179.552363][ C0] schedule+0x11b/0x1f0 [ 179.556520][ C0] schedule_timeout+0x1b9/0x300 [ 179.561462][ C0] ? console_conditional_schedule+0x40/0x40 [ 179.567357][ C0] ? update_process_times+0x200/0x200 [ 179.572737][ C0] ? prepare_to_swait_event+0x321/0x340 [ 179.578285][ C0] rcu_gp_fqs_loop+0x2bf/0x1080 [ 179.583144][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 179.588342][ C0] ? lockdep_hardirqs_on+0x94/0x130 [ 179.593544][ C0] ? rcu_gp_init+0xdae/0x1140 [ 179.598220][ C0] ? rcu_gp_init+0x1140/0x1140 [ 179.602984][ C0] ? finish_swait+0xc5/0x1d0 [ 179.607580][ C0] rcu_gp_kthread+0xa4/0x360 [ 179.612173][ C0] ? _raw_spin_unlock+0x40/0x40 [ 179.617029][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 179.622236][ C0] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 179.628140][ C0] ? __kthread_parkme+0x15c/0x1c0 [ 179.633167][ C0] kthread+0x3f6/0x4f0 [ 179.637236][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 179.642347][ C0] ? kthread_blkcg+0xd0/0xd0 [ 179.646937][ C0] ret_from_fork+0x1f/0x30 [ 179.651363][ C0] [ 179.654378][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 179.660687][ C0] NMI backtrace for cpu 0 [ 179.665027][ C0] CPU: 0 PID: 4189 Comm: syz-executor362 Not tainted 5.15.173-syzkaller #0 [ 179.673612][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 179.683662][ C0] Call Trace: [ 179.686939][ C0] [ 179.689780][ C0] dump_stack_lvl+0x1e3/0x2d0 [ 179.694468][ C0] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 179.700107][ C0] ? panic+0x860/0x860 [ 179.704187][ C0] nmi_cpu_backtrace+0x46a/0x4a0 [ 179.709224][ C0] ? __wake_up_klogd+0xd5/0x100 [ 179.714076][ C0] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 179.720225][ C0] ? _printk+0xd1/0x120 [ 179.724389][ C0] ? cpu_online+0x1f/0x40 [ 179.728723][ C0] ? panic+0x860/0x860 [ 179.732793][ C0] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 179.738855][ C0] nmi_trigger_cpumask_backtrace+0x181/0x2a0 [ 179.744847][ C0] rcu_check_gp_kthread_starvation+0x1d2/0x240 [ 179.751022][ C0] print_other_cpu_stall+0x137a/0x14d0 [ 179.756500][ C0] ? print_cpu_stall+0x600/0x600 [ 179.761446][ C0] ? ktime_get+0x7f/0x270 [ 179.765785][ C0] rcu_sched_clock_irq+0xa38/0x1150 [ 179.770986][ C0] ? rcutree_dead_cpu+0x20/0x20 [ 179.775847][ C0] ? do_raw_spin_unlock+0x137/0x8b0 [ 179.781046][ C0] ? hrtimer_run_queues+0x163/0x450 [ 179.786240][ C0] ? account_process_tick+0x232/0x3a0 [ 179.791612][ C0] update_process_times+0x196/0x200 [ 179.796815][ C0] tick_sched_timer+0x386/0x550 [ 179.801665][ C0] ? tick_setup_sched_timer+0x2d0/0x2d0 [ 179.807213][ C0] __hrtimer_run_queues+0x55b/0xcf0 [ 179.812423][ C0] ? hrtimer_interrupt+0x980/0x980 [ 179.817530][ C0] ? ktime_get_update_offsets_now+0x407/0x420 [ 179.823605][ C0] hrtimer_interrupt+0x392/0x980 [ 179.828567][ C0] __sysvec_apic_timer_interrupt+0x13b/0x4b0 [ 179.834677][ C0] sysvec_apic_timer_interrupt+0x9b/0xc0 [ 179.840337][ C0] [ 179.843268][ C0] [ 179.846198][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 179.852179][ C0] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 [ 179.857986][ C0] Code: 51 67 f6 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 3e db 24 f7 48 89 df e8 96 2f 26 f7 e8 51 ea 48 f7 fb bf 01 00 00 00 f6 74 19 f7 65 8b 05 17 68 c4 75 85 c0 74 02 5b c3 e8 e4 84 c2 [ 179.877590][ C0] RSP: 0018:ffffc90002eb7bc0 EFLAGS: 00000282 [ 179.883657][ C0] RAX: db95a2351c1a7600 RBX: ffff88802ae88940 RCX: ffffffff9686af03 [ 179.891626][ C0] RDX: dffffc0000000000 RSI: ffffffff8a8b2a80 RDI: 0000000000000001 [ 179.899598][ C0] RBP: 0000000000000000 R08: ffffffff8186f220 R09: ffffed10055d1129 [ 179.907574][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000021 [ 179.915543][ C0] R13: dffffc0000000000 R14: ffff88802ae88dd8 R15: ffff88802ae88940 [ 179.923520][ C0] ? trace_hardirqs_on+0x30/0x80 [ 179.928470][ C0] get_signal+0x13ee/0x14e0 [ 179.932987][ C0] arch_do_signal_or_restart+0xc3/0x1890 [ 179.938622][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x250/0x250 [ 179.945042][ C0] ? __might_fault+0xb4/0x110 [ 179.949721][ C0] ? _copy_from_user+0x10f/0x170 [ 179.954660][ C0] ? restore_altstack+0x274/0x400 [ 179.959684][ C0] ? get_sigframe_size+0x10/0x10 [ 179.964619][ C0] ? __ia32_sys_sigaltstack+0x60/0x60 [ 179.969997][ C0] ? __do_sys_rt_sigreturn+0x19d/0x250 [ 179.975455][ C0] ? exit_to_user_mode_loop+0x39/0x130 [ 179.980913][ C0] exit_to_user_mode_loop+0x97/0x130 [ 179.986193][ C0] exit_to_user_mode_prepare+0xb1/0x140 [ 179.991743][ C0] syscall_exit_to_user_mode+0x5d/0x240 [ 179.997291][ C0] do_syscall_64+0x47/0xb0 [ 180.001706][ C0] ? clear_bhb_loop+0x15/0x70 [ 180.006390][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 180.012281][ C0] RIP: 0033:0x7f597359f89a [ 180.016715][ C0] Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 e3 6a 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 43 6b 02 00 8b 44 24 [ 180.036319][ C0] RSP: 002b:00007ffd57a34d50 EFLAGS: 00000293 [ 180.042387][ C0] RAX: fffffffffffffff7 RBX: 0000000000000004 RCX: 00007f597359f89a [ 180.050355][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 180.058513][ C0] RBP: 0000000000000000 R08: 00007f5973560990 R09: 00007f5973560990 [ 180.066481][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f59735fe31c [ 180.074452][ C0] R13: 00007f59735f8106 R14: 00007ffd57a34da0 R15: 0000000000000000 [ 180.082434][ C0]