Warning: Permanently added '10.128.1.135' (ED25519) to the list of known hosts. executing program executing program [ 297.689331][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 297.696355][ C1] (detected by 1, t=10502 jiffies, g=3561, q=22) [ 297.702767][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294966900-4294956398), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 297.716127][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g3561 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 297.727227][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 297.737189][ C1] rcu: RCU grace-period kthread stack dump: [ 297.743154][ C1] task:rcu_preempt state:R running task stack:27000 pid: 15 ppid: 2 flags:0x00004000 [ 297.753930][ C1] Call Trace: [ 297.757207][ C1] [ 297.760137][ C1] __schedule+0x12c4/0x45b0 [ 297.764771][ C1] ? _raw_spin_unlock_irqrestore+0x8b/0x130 [ 297.770696][ C1] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 297.776600][ C1] ? __mod_timer+0xa8e/0xeb0 [ 297.781253][ C1] ? release_firmware_map_entry+0x190/0x190 [ 297.787153][ C1] ? mod_timer_pending+0x20/0x20 [ 297.792088][ C1] ? lockdep_softirqs_off+0x420/0x420 [ 297.797479][ C1] schedule+0x11b/0x1f0 [ 297.801633][ C1] schedule_timeout+0x1b9/0x300 [ 297.806483][ C1] ? console_conditional_schedule+0x40/0x40 [ 297.812377][ C1] ? update_process_times+0x200/0x200 [ 297.817750][ C1] ? prepare_to_swait_event+0x321/0x340 [ 297.823447][ C1] rcu_gp_fqs_loop+0x2bf/0x1080 [ 297.828394][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 297.833597][ C1] ? lockdep_hardirqs_on+0x94/0x130 [ 297.838834][ C1] ? rcu_gp_init+0xdae/0x1140 [ 297.843515][ C1] ? rcu_gp_init+0x1140/0x1140 [ 297.848281][ C1] ? finish_swait+0xc5/0x1d0 [ 297.852873][ C1] rcu_gp_kthread+0xa4/0x360 [ 297.857467][ C1] ? _raw_spin_unlock+0x40/0x40 [ 297.862321][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 297.867426][ C1] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 297.873330][ C1] ? __kthread_parkme+0x15c/0x1c0 [ 297.878448][ C1] kthread+0x3f6/0x4f0 [ 297.882543][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 297.887662][ C1] ? kthread_blkcg+0xd0/0xd0 [ 297.892265][ C1] ret_from_fork+0x1f/0x30 [ 297.896726][ C1] [ 297.899767][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 297.906085][ C1] NMI backtrace for cpu 1 [ 297.910420][ C1] CPU: 1 PID: 3553 Comm: syz-executor239 Not tainted 5.15.158-syzkaller #0 [ 297.919009][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 297.929066][ C1] Call Trace: [ 297.932345][ C1] [ 297.935279][ C1] dump_stack_lvl+0x1e3/0x2d0 [ 297.939962][ C1] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 297.945594][ C1] ? panic+0x860/0x860 [ 297.949744][ C1] nmi_cpu_backtrace+0x46a/0x4a0 [ 297.954826][ C1] ? __wake_up_klogd+0xd5/0x100 [ 297.959695][ C1] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 297.965872][ C1] ? _printk+0xd1/0x120 [ 297.970043][ C1] ? cpu_online+0x1f/0x40 [ 297.974375][ C1] ? panic+0x860/0x860 [ 297.978457][ C1] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 297.984593][ C1] nmi_trigger_cpumask_backtrace+0x181/0x2a0 [ 297.990580][ C1] rcu_check_gp_kthread_starvation+0x1d2/0x240 [ 297.996738][ C1] print_other_cpu_stall+0x137a/0x14d0 [ 298.002206][ C1] ? print_cpu_stall+0x600/0x600 [ 298.007142][ C1] ? __lock_acquire+0x1ff0/0x1ff0 [ 298.012169][ C1] ? do_raw_spin_unlock+0x137/0x8b0 [ 298.017367][ C1] rcu_sched_clock_irq+0xa38/0x1150 [ 298.022566][ C1] ? rcutree_dead_cpu+0x20/0x20 [ 298.027416][ C1] ? hrtimer_run_queues+0x163/0x450 [ 298.032620][ C1] ? account_process_tick+0x232/0x3a0 [ 298.038075][ C1] update_process_times+0x196/0x200 [ 298.043296][ C1] tick_sched_timer+0x386/0x550 [ 298.048244][ C1] ? tick_setup_sched_timer+0x2d0/0x2d0 [ 298.053795][ C1] __hrtimer_run_queues+0x55b/0xcf0 [ 298.059011][ C1] ? hrtimer_interrupt+0x980/0x980 [ 298.064129][ C1] ? ktime_get_update_offsets_now+0x407/0x420 [ 298.070284][ C1] hrtimer_interrupt+0x392/0x980 [ 298.075240][ C1] __sysvec_apic_timer_interrupt+0x139/0x470 [ 298.081243][ C1] sysvec_apic_timer_interrupt+0x8c/0xb0 [ 298.086876][ C1] [ 298.089804][ C1] [ 298.092732][ C1] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 298.098797][ C1] RIP: 0010:lock_acquire+0x14d/0x4f0 [ 298.104087][ C1] Code: c3 ec 0a 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 c4 02 00 00 83 3b 00 0f 85 5c 01 00 00 4c 8d bc 24 80 00 00 00 <4c> 89 fb 48 c1 eb 03 42 80 3c 2b 00 74 08 4c 89 ff e8 5d 88 67 00 [ 298.123687][ C1] RSP: 0018:ffffc90002e77d80 EFLAGS: 00000246 [ 298.129754][ C1] RAX: 0000000000000000 RBX: ffff8880232e642c RCX: ffffffff8162ac6c [ 298.137722][ C1] RDX: 0000000000000000 RSI: ffffffff8ad8f5e0 RDI: ffffffff8ad8f5a0 [ 298.145692][ C1] RBP: ffffc90002e77ed8 R08: dffffc0000000000 R09: fffffbfff1bc8c56 [ 298.153747][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920005cefb8 [ 298.161888][ C1] R13: dffffc0000000000 R14: 0000000000000000 R15: ffffc90002e77e00 [ 298.169870][ C1] ? lock_acquire+0xcc/0x4f0 [ 298.174470][ C1] ? __context_tracking_exit+0x4c/0x80 [ 298.179991][ C1] ? read_lock_is_recursive+0x10/0x10 [ 298.185364][ C1] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 298.191345][ C1] ? print_irqtrace_events+0x210/0x210 [ 298.196799][ C1] ? vtime_user_exit+0x2d1/0x400 [ 298.201749][ C1] rcu_lock_acquire+0x2a/0x30 [ 298.206474][ C1] ? rcu_lock_acquire+0x5/0x30 [ 298.211234][ C1] __task_pid_nr_ns+0x20/0x420 [ 298.215998][ C1] __do_sys_getpid+0x19/0x20 [ 298.220586][ C1] do_syscall_64+0x3b/0xb0 [ 298.225004][ C1] ? clear_bhb_loop+0x15/0x70 [ 298.229678][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 298.235564][ C1] RIP: 0033:0x7f2acdcd4387 [ 298.239978][ C1] Code: 0b e9 68 fe ff ff 48 83 c4 18 48 8d 3d 52 0f 09 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 53 d8 fd ff 0f 1f 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 31 f6 31 ff e9 c7 e5 02 00 0f 1f 80 00 [ 298.259578][ C1] RSP: 002b:00007ffd150fb4c8 EFLAGS: 00000202 ORIG_RAX: 0000000000000027 [ 298.267992][ C1] RAX: ffffffffffffffda RBX: 00007ffd150fb630 RCX: 00007f2acdcd4387 [ 298.276143][ C1] RDX: 00007ffd150fb500 RSI: 00007ffd150fb630 RDI: 0000000000000021 [ 298.284108][ C1] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 298.292071][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000555555999370 [ 298.300045][ C1] R13: 0000000000000002 R14: 00007ffd150fbb00 R15: 00007ffd150fbaf0 [ 298.308043][ C1]