Warning: Permanently added '10.128.1.151' (ED25519) to the list of known hosts. executing program executing program executing program executing program [ 166.715142][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 166.722233][ C0] (detected by 0, t=10502 jiffies, g=5393, q=81) [ 166.728662][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294953800-4294943298), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 166.742047][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g5393 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 166.753180][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 166.763170][ C0] rcu: RCU grace-period kthread stack dump: [ 166.769063][ C0] task:rcu_preempt state:R running task stack:27352 pid: 15 ppid: 2 flags:0x00004000 [ 166.779874][ C0] Call Trace: [ 166.783161][ C0] [ 166.786106][ C0] __schedule+0x12c4/0x45b0 [ 166.790651][ C0] ? _raw_spin_unlock_irqrestore+0x8b/0x130 [ 166.796569][ C0] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 166.802498][ C0] ? __mod_timer+0xa8e/0xeb0 [ 166.807111][ C0] ? release_firmware_map_entry+0x190/0x190 [ 166.813019][ C0] ? mod_timer_pending+0x20/0x20 [ 166.817981][ C0] ? lockdep_softirqs_off+0x420/0x420 [ 166.823467][ C0] schedule+0x11b/0x1f0 [ 166.827644][ C0] schedule_timeout+0x1b9/0x300 [ 166.832603][ C0] ? console_conditional_schedule+0x40/0x40 [ 166.838518][ C0] ? update_process_times+0x200/0x200 [ 166.843924][ C0] ? prepare_to_swait_event+0x321/0x340 [ 166.849495][ C0] rcu_gp_fqs_loop+0x2bf/0x1080 [ 166.854405][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 166.859628][ C0] ? lockdep_hardirqs_on+0x94/0x130 [ 166.864851][ C0] ? rcu_gp_init+0xdae/0x1140 [ 166.869551][ C0] ? rcu_gp_init+0x1140/0x1140 [ 166.874343][ C0] ? finish_swait+0xc5/0x1d0 [ 166.878955][ C0] rcu_gp_kthread+0xa4/0x360 [ 166.883563][ C0] ? _raw_spin_unlock+0x40/0x40 [ 166.888448][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 166.893575][ C0] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 166.899495][ C0] ? __kthread_parkme+0x15c/0x1c0 [ 166.904543][ C0] kthread+0x3f6/0x4f0 [ 166.908632][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 166.913759][ C0] ? kthread_blkcg+0xd0/0xd0 [ 166.918542][ C0] ret_from_fork+0x1f/0x30 [ 166.923004][ C0] [ 166.926029][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 166.932361][ C0] NMI backtrace for cpu 0 [ 166.936715][ C0] CPU: 0 PID: 4192 Comm: syz-executor198 Not tainted 5.15.175-syzkaller #0 [ 166.945327][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 166.955392][ C0] Call Trace: [ 166.958683][ C0] [ 166.961542][ C0] dump_stack_lvl+0x1e3/0x2d0 [ 166.966242][ C0] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 166.971888][ C0] ? panic+0x860/0x860 [ 166.975989][ C0] nmi_cpu_backtrace+0x46a/0x4a0 [ 166.980942][ C0] ? __wake_up_klogd+0xd5/0x100 [ 166.985817][ C0] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 166.991985][ C0] ? _printk+0xd1/0x120 [ 166.996160][ C0] ? cpu_online+0x1f/0x40 [ 167.000505][ C0] ? panic+0x860/0x860 [ 167.004617][ C0] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 167.010697][ C0] nmi_trigger_cpumask_backtrace+0x181/0x2a0 [ 167.016700][ C0] rcu_check_gp_kthread_starvation+0x1d2/0x240 [ 167.022882][ C0] print_other_cpu_stall+0x137a/0x14d0 [ 167.028373][ C0] ? print_cpu_stall+0x600/0x600 [ 167.033508][ C0] ? do_raw_spin_unlock+0x137/0x8b0 [ 167.038737][ C0] rcu_sched_clock_irq+0xa38/0x1150 [ 167.044220][ C0] ? rcutree_dead_cpu+0x20/0x20 [ 167.049126][ C0] ? hrtimer_run_queues+0x163/0x450 [ 167.054346][ C0] ? account_process_tick+0x232/0x3a0 [ 167.059737][ C0] update_process_times+0x196/0x200 [ 167.064959][ C0] tick_sched_timer+0x386/0x550 [ 167.069827][ C0] ? tick_setup_sched_timer+0x2d0/0x2d0 [ 167.075393][ C0] __hrtimer_run_queues+0x55b/0xcf0 [ 167.080632][ C0] ? hrtimer_interrupt+0x980/0x980 [ 167.085758][ C0] ? ktime_get_update_offsets_now+0x407/0x420 [ 167.091857][ C0] hrtimer_interrupt+0x392/0x980 [ 167.096828][ C0] __sysvec_apic_timer_interrupt+0x13b/0x4b0 [ 167.102842][ C0] sysvec_apic_timer_interrupt+0x9b/0xc0 [ 167.108492][ C0] [ 167.111427][ C0] [ 167.114364][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 167.120368][ C0] RIP: 0010:lock_acquire+0x252/0x4f0 [ 167.125671][ C0] Code: 2b 00 74 08 4c 89 f7 e8 cc 91 67 00 f6 44 24 61 02 0f 85 84 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 [ 167.145289][ C0] RSP: 0018:ffffc90002f5f840 EFLAGS: 00000206 [ 167.151548][ C0] RAX: 0000000000000001 RBX: 1ffff920005ebf14 RCX: ffffffff81638982 [ 167.159532][ C0] RDX: dffffc0000000000 RSI: ffffffff8aab3e20 RDI: ffffffff8af9f000 [ 167.167618][ C0] RBP: ffffc90002f5f998 R08: dffffc0000000000 R09: fffffbfff2131227 [ 167.175639][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff920005ebf10 [ 167.183625][ C0] R13: dffffc0000000000 R14: ffffc90002f5f8a0 R15: 0000000000000246 [ 167.191624][ C0] ? validate_chain+0x112/0x5930 [ 167.196599][ C0] ? read_lock_is_recursive+0x10/0x10 [ 167.201992][ C0] ? __might_sleep+0xc0/0xc0 [ 167.206605][ C0] ? __local_bh_enable_ip+0x164/0x1f0 [ 167.211992][ C0] ? lockdep_hardirqs_on+0x94/0x130 [ 167.217211][ C0] ? __local_bh_enable_ip+0x164/0x1f0 [ 167.222603][ C0] ? __bpf_trace_softirq+0x10/0x10 [ 167.227820][ C0] ? local_bh_enable+0x5/0x20 [ 167.232512][ C0] ? _local_bh_enable+0xa0/0xa0 [ 167.237383][ C0] __might_fault+0xb4/0x110 [ 167.241904][ C0] ? __might_fault+0x91/0x110 [ 167.246607][ C0] copy_fpstate_to_sigframe+0x858/0xb40 [ 167.252183][ C0] ? fpregs_set+0x700/0x700 [ 167.256704][ C0] ? __lock_acquire+0x1ff0/0x1ff0 [ 167.261742][ C0] ? rcu_is_watching+0x11/0xa0 [ 167.266525][ C0] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 167.272708][ C0] ? lockdep_hardirqs_on+0x94/0x130 [ 167.277928][ C0] ? rcu_is_watching+0x11/0xa0 [ 167.282705][ C0] ? fpu__alloc_mathframe+0x80/0x140 [ 167.288011][ C0] get_sigframe+0x378/0x4b0 [ 167.292544][ C0] ? restore_sigcontext+0x710/0x710 [ 167.297778][ C0] arch_do_signal_or_restart+0x4ac/0x1890 [ 167.303519][ C0] ? __do_compat_sys_x32_rt_sigreturn+0x250/0x250 [ 167.309965][ C0] ? __might_fault+0xb4/0x110 [ 167.314666][ C0] ? _copy_from_user+0x10f/0x170 [ 167.319624][ C0] ? get_sigframe_size+0x10/0x10 [ 167.324589][ C0] ? __ia32_sys_sigaltstack+0x60/0x60 [ 167.329993][ C0] ? __do_sys_rt_sigreturn+0x19d/0x250 [ 167.335472][ C0] ? exit_to_user_mode_loop+0x39/0x130 [ 167.340951][ C0] exit_to_user_mode_loop+0x97/0x130 [ 167.346251][ C0] exit_to_user_mode_prepare+0xb1/0x140 [ 167.351812][ C0] syscall_exit_to_user_mode+0x5d/0x240 [ 167.357380][ C0] do_syscall_64+0x47/0xb0 [ 167.361813][ C0] ? clear_bhb_loop+0x15/0x70 [ 167.366505][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 167.372421][ C0] RIP: 0033:0x7fe82ca12859 [ 167.376865][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 19 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 [ 167.396483][ C0] RSP: 002b:00007ffd3d5a2018 EFLAGS: 00000246 [ 167.402575][ C0] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007fe82ca12859 [ 167.410647][ C0] RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000 [ 167.418633][ C0] RBP: 0000000000000000 R08: 00007fe82c9d2990 R09: 00007fe82c9d2990 [ 167.426640][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe82ca7031c [ 167.434646][ C0] R13: 00007fe82ca6a106 R14: 00007ffd3d5a2050 R15: 0000000000000000 [ 167.442672][ C0]