Warning: Permanently added '10.128.1.179' (ED25519) to the list of known hosts. executing program executing program executing program executing program [ 228.444108][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 228.451176][ C0] (detected by 0, t=10502 jiffies, g=4249, q=39) [ 228.457607][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294959983-4294949480), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 228.470975][ C0] rcu: rcu_preempt kthread starved for 10504 jiffies! g4249 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 228.482090][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 228.492048][ C0] rcu: RCU grace-period kthread stack dump: [ 228.497937][ C0] task:rcu_preempt state:R running task stack:27848 pid: 15 ppid: 2 flags:0x00004000 [ 228.508726][ C0] Call Trace: [ 228.512000][ C0] [ 228.514939][ C0] __schedule+0x11bb/0x4390 [ 228.519480][ C0] ? _raw_spin_lock_irqsave+0x7f/0xf0 [ 228.524868][ C0] ? _raw_spin_unlock_irqrestore+0x82/0x100 [ 228.530766][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 228.536661][ C0] ? _raw_spin_unlock+0x40/0x40 [ 228.541510][ C0] ? rcu_is_watching+0x11/0xa0 [ 228.546271][ C0] ? release_firmware_map_entry+0x190/0x190 [ 228.552180][ C0] schedule+0x11b/0x1e0 [ 228.556339][ C0] schedule_timeout+0x15c/0x280 [ 228.561194][ C0] ? console_conditional_schedule+0x40/0x40 [ 228.567180][ C0] ? update_process_times+0x200/0x200 [ 228.572559][ C0] ? prepare_to_swait_event+0x331/0x350 [ 228.578108][ C0] rcu_gp_fqs_loop+0x29e/0x11b0 [ 228.582998][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 228.588206][ C0] ? rcu_gp_init+0xd58/0x10e0 [ 228.592884][ C0] ? rcu_gp_init+0x10e0/0x10e0 [ 228.597648][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 228.602847][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 228.608042][ C0] rcu_gp_kthread+0x98/0x350 [ 228.612631][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 228.617823][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 228.623717][ C0] ? __kthread_parkme+0x157/0x1b0 [ 228.628745][ C0] kthread+0x436/0x520 [ 228.632809][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 228.637914][ C0] ? kthread_blkcg+0xd0/0xd0 [ 228.642509][ C0] ret_from_fork+0x1f/0x30 [ 228.646942][ C0] [ 228.649952][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 228.656261][ C0] NMI backtrace for cpu 0 [ 228.660590][ C0] CPU: 0 PID: 4215 Comm: syz-executor275 Not tainted syzkaller #0 [ 228.668386][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 228.678435][ C0] Call Trace: [ 228.681715][ C0] [ 228.684562][ C0] dump_stack_lvl+0x168/0x230 [ 228.689254][ C0] ? show_regs_print_info+0x20/0x20 [ 228.694460][ C0] ? load_image+0x3b0/0x3b0 [ 228.698966][ C0] ? irq_work_queue+0xbf/0x140 [ 228.703731][ C0] nmi_cpu_backtrace+0x397/0x3d0 [ 228.708679][ C0] ? nmi_trigger_cpumask_backtrace+0x280/0x280 [ 228.714826][ C0] ? _printk+0xcc/0x110 [ 228.719152][ C0] ? cpu_online+0x1d/0x30 [ 228.723481][ C0] ? load_image+0x3b0/0x3b0 [ 228.727984][ C0] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 228.734455][ C0] nmi_trigger_cpumask_backtrace+0x163/0x280 [ 228.740441][ C0] rcu_check_gp_kthread_starvation+0x1cd/0x250 [ 228.746635][ C0] print_other_cpu_stall+0x10c8/0x1220 [ 228.752101][ C0] ? print_cpu_stall+0x5f0/0x5f0 [ 228.757033][ C0] ? ktime_get+0x7b/0x270 [ 228.761367][ C0] ? __lock_acquire+0x7c60/0x7c60 [ 228.766400][ C0] rcu_sched_clock_irq+0x831/0x1110 [ 228.771603][ C0] ? rcutree_dead_cpu+0x20/0x20 [ 228.776453][ C0] ? hrtimer_run_queues+0x162/0x440 [ 228.781647][ C0] ? account_process_tick+0x227/0x3a0 [ 228.787020][ C0] update_process_times+0x193/0x200 [ 228.792217][ C0] tick_sched_timer+0x37d/0x560 [ 228.797069][ C0] __hrtimer_run_queues+0x4fe/0xc40 [ 228.802272][ C0] ? tick_setup_sched_timer+0x2c0/0x2c0 [ 228.807819][ C0] ? hrtimer_interrupt+0x8d0/0x8d0 [ 228.812929][ C0] ? ktime_get_update_offsets_now+0x3ce/0x3e0 [ 228.818998][ C0] hrtimer_interrupt+0x3bb/0x8d0 [ 228.823950][ C0] __sysvec_apic_timer_interrupt+0x137/0x4a0 [ 228.829932][ C0] sysvec_apic_timer_interrupt+0x9b/0xc0 [ 228.835602][ C0] [ 228.838527][ C0] [ 228.841450][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 228.847436][ C0] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 [ 228.853368][ C0] Code: f6 ff 0f 1f 00 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 3e 1d aa f7 48 89 df e8 06 f2 aa f7 e8 81 8c cb f7 fb bf 01 00 00 00 46 15 9f f7 65 8b 05 27 13 50 76 85 c0 74 02 5b c3 e8 d4 1d 4e [ 228.873151][ C0] RSP: 0018:ffffc90002e9fbc0 EFLAGS: 00000282 [ 228.879234][ C0] RAX: 3317c4591e529c00 RBX: ffff88802a0f1bc0 RCX: 3317c4591e529c00 [ 228.887217][ C0] RDX: dffffc0000000000 RSI: ffffffff8a0b1620 RDI: 0000000000000001 [ 228.895199][ C0] RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed100541e379 [ 228.903180][ C0] R10: ffffed100541e379 R11: 1ffff1100541e378 R12: ffff88802a0f1bc0 [ 228.911165][ C0] R13: 0000000000000021 R14: dffffc0000000000 R15: 000000001c000004 [ 228.919154][ C0] get_signal+0x11d6/0x12c0 [ 228.923689][ C0] arch_do_signal_or_restart+0xc1/0x1300 [ 228.929327][ C0] ? _copy_from_user+0x111/0x170 [ 228.934267][ C0] ? __ia32_sys_rt_sigreturn+0x660/0x790 [ 228.939906][ C0] ? load_gs_index+0x120/0x120 [ 228.944669][ C0] ? get_sigframe_size+0x10/0x10 [ 228.949631][ C0] ? exit_to_user_mode_loop+0x3b/0x130 [ 228.955204][ C0] exit_to_user_mode_loop+0x9e/0x130 [ 228.960505][ C0] exit_to_user_mode_prepare+0xb1/0x140 [ 228.966055][ C0] syscall_exit_to_user_mode+0x16/0x40 [ 228.971522][ C0] do_syscall_64+0x58/0xa0 [ 228.976047][ C0] ? clear_bhb_loop+0x30/0x80 [ 228.980806][ C0] ? clear_bhb_loop+0x30/0x80 [ 228.985496][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 228.991488][ C0] RIP: 0033:0x7f1ad199f697 [ 228.995903][ C0] Code: 14 25 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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 [ 229.015507][ C0] RSP: 002b:00007f1ad1960218 EFLAGS: 00000246 [ 229.021583][ C0] RAX: 00000000000000ca RBX: 00007f1ad1a29308 RCX: 00007f1ad199f699 [ 229.029550][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1ad1a29308 [ 229.037514][ C0] RBP: 00007f1ad1a29300 R08: 0000000000000000 R09: 0000000000000000 [ 229.045570][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000140 [ 229.053543][ C0] R13: 000020000006b000 R14: 0000200000000100 R15: 0000200000000680 [ 229.061533][ C0]