Warning: Permanently added '10.128.1.199' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program [ 167.342341][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 167.349452][ C0] (detected by 0, t=10502 jiffies, g=5433, q=24) [ 167.355884][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294953855-4294943353), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 167.369275][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g5433 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 167.380439][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 167.390434][ C0] rcu: RCU grace-period kthread stack dump: [ 167.396352][ C0] task:rcu_preempt state:R running task stack:28032 pid: 15 ppid: 2 flags:0x00004000 [ 167.407176][ C0] Call Trace: [ 167.410480][ C0] [ 167.413435][ C0] __schedule+0x11bb/0x4390 [ 167.417994][ C0] ? _raw_spin_lock_irqsave+0x7f/0xf0 [ 167.423397][ C0] ? _raw_spin_unlock_irqrestore+0x82/0x100 [ 167.429405][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 167.435329][ C0] ? _raw_spin_unlock+0x40/0x40 [ 167.440293][ C0] ? rcu_is_watching+0x11/0xa0 [ 167.445078][ C0] ? release_firmware_map_entry+0x190/0x190 [ 167.451012][ C0] schedule+0x11b/0x1e0 [ 167.455193][ C0] schedule_timeout+0x15c/0x280 [ 167.460075][ C0] ? console_conditional_schedule+0x40/0x40 [ 167.465996][ C0] ? update_process_times+0x200/0x200 [ 167.471397][ C0] ? prepare_to_swait_event+0x331/0x350 [ 167.476978][ C0] rcu_gp_fqs_loop+0x29e/0x11b0 [ 167.481856][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 167.487079][ C0] ? rcu_gp_init+0xd58/0x10e0 [ 167.492222][ C0] ? rcu_gp_init+0x10e0/0x10e0 [ 167.497014][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 167.502238][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 167.507464][ C0] rcu_gp_kthread+0x98/0x350 [ 167.512081][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 167.517220][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 167.523141][ C0] ? __kthread_parkme+0x157/0x1b0 [ 167.528195][ C0] kthread+0x436/0x520 [ 167.532285][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 167.537416][ C0] ? kthread_blkcg+0xd0/0xd0 [ 167.542030][ C0] ret_from_fork+0x1f/0x30 [ 167.546481][ C0] [ 167.549521][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 167.555853][ C0] NMI backtrace for cpu 0 [ 167.560217][ C0] CPU: 0 PID: 4187 Comm: syz-executor304 Not tainted syzkaller #0 [ 167.568038][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 [ 167.578106][ C0] Call Trace: [ 167.581500][ C0] [ 167.584360][ C0] dump_stack_lvl+0x168/0x230 [ 167.589070][ C0] ? show_regs_print_info+0x20/0x20 [ 167.594292][ C0] ? load_image+0x3b0/0x3b0 [ 167.598825][ C0] ? irq_work_queue+0xbf/0x140 [ 167.603618][ C0] nmi_cpu_backtrace+0x397/0x3d0 [ 167.608585][ C0] ? nmi_trigger_cpumask_backtrace+0x280/0x280 [ 167.614763][ C0] ? _printk+0xcc/0x110 [ 167.618944][ C0] ? cpu_online+0x1d/0x30 [ 167.623297][ C0] ? load_image+0x3b0/0x3b0 [ 167.627829][ C0] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 167.633922][ C0] nmi_trigger_cpumask_backtrace+0x163/0x280 [ 167.639932][ C0] rcu_check_gp_kthread_starvation+0x1cd/0x250 [ 167.646119][ C0] print_other_cpu_stall+0x10c8/0x1220 [ 167.651609][ C0] ? print_cpu_stall+0x5f0/0x5f0 [ 167.656570][ C0] ? rcu_qs+0xc1/0x160 [ 167.660667][ C0] ? rcu_softirq_qs+0x280/0x280 [ 167.665557][ C0] rcu_sched_clock_irq+0x831/0x1110 [ 167.670788][ C0] ? rcutree_dead_cpu+0x20/0x20 [ 167.675659][ C0] ? hrtimer_run_queues+0x162/0x440 [ 167.680890][ C0] ? account_process_tick+0x227/0x3a0 [ 167.686288][ C0] update_process_times+0x193/0x200 [ 167.691509][ C0] tick_sched_timer+0x37d/0x560 [ 167.696385][ C0] __hrtimer_run_queues+0x4fe/0xc40 [ 167.701611][ C0] ? tick_setup_sched_timer+0x2c0/0x2c0 [ 167.707188][ C0] ? hrtimer_interrupt+0x8d0/0x8d0 [ 167.712322][ C0] ? ktime_get_update_offsets_now+0x3ce/0x3e0 [ 167.718418][ C0] hrtimer_interrupt+0x3bb/0x8d0 [ 167.723405][ C0] __sysvec_apic_timer_interrupt+0x137/0x4a0 [ 167.729406][ C0] sysvec_apic_timer_interrupt+0x9b/0xc0 [ 167.735065][ C0] [ 167.738010][ C0] [ 167.740951][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 167.746967][ C0] RIP: 0010:__local_bh_enable_ip+0x132/0x1b0 [ 167.752975][ C0] Code: 8a e8 52 8c 60 08 65 66 8b 05 ca 25 bb 7e 66 85 c0 75 54 bf 01 00 00 00 e8 9b fe 08 00 e8 06 76 35 00 fb 65 8b 05 76 fc b9 7e <85> c0 75 05 e8 25 07 b8 ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00 [ 167.772598][ C0] RSP: 0018:ffffc90002e7faa0 EFLAGS: 00000286 [ 167.778701][ C0] RAX: 0000000080000000 RBX: 0000000000000200 RCX: 89ea811959d98a00 [ 167.786689][ C0] RDX: dffffc0000000000 RSI: ffffffff8a0b1820 RDI: ffffffff8a59a480 [ 167.794697][ C0] RBP: ffffc90002e7fb30 R08: dffffc0000000000 R09: ffffed100f2f6771 [ 167.802700][ C0] R10: ffffed100f2f6771 R11: 1ffff1100f2f6770 R12: ffffffff812bddd5 [ 167.810705][ C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005cff54 [ 167.818707][ C0] ? local_bh_enable+0x5/0x20 [ 167.823437][ C0] ? _local_bh_enable+0xa0/0xa0 [ 167.828311][ C0] ? rcu_is_watching+0x11/0xa0 [ 167.833103][ C0] fpu__restore_sig+0x785/0xf50 [ 167.837986][ C0] ? copy_fpstate_to_sigframe+0xb90/0xb90 [ 167.843745][ C0] ? __might_fault+0xb3/0x110 [ 167.848449][ C0] ? _copy_from_user+0x111/0x170 [ 167.853412][ C0] __ia32_sys_rt_sigreturn+0x649/0x790 [ 167.858901][ C0] ? load_gs_index+0x120/0x120 [ 167.863728][ C0] ? syscall_enter_from_user_mode+0x2a/0x70 [ 167.869644][ C0] do_syscall_64+0x4c/0xa0 [ 167.874084][ C0] ? clear_bhb_loop+0x30/0x80 [ 167.878780][ C0] ? clear_bhb_loop+0x30/0x80 [ 167.883476][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 167.889388][ C0] RIP: 0033:0x7f6cbf901ed7 [ 167.893828][ 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 [ 167.913451][ C0] RSP: 002b:00007f6cbf8c2178 EFLAGS: 00000246 [ 167.919543][ C0] RAX: 00000000000000ca RBX: 00007f6cbf98c308 RCX: 00007f6cbf901ed9 [ 167.927533][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f6cbf98c308 [ 167.935533][ C0] RBP: 00007f6cbf98c300 R08: 00007f6cbf8c26c0 R09: 00007f6cbf8c26c0 [ 167.943519][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6cbf98c30c [ 167.951505][ C0] R13: 0000000000000000 R14: 00007ffd7f0ff250 R15: 00007ffd7f0ff338 [ 167.959522][ C0]