Warning: Permanently added '10.128.0.98' (ED25519) to the list of known hosts. [ 131.515727][ T4189] cgroup: Unknown subsys name 'net' [ 131.655037][ T4189] cgroup: Unknown subsys name 'rlimit' executing program [ 237.147773][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 237.154848][ C0] (detected by 0, t=10502 jiffies, g=5685, q=96) [ 237.161289][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294960835-4294950333), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 237.174685][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g5685 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 237.185811][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 237.195885][ C0] rcu: RCU grace-period kthread stack dump: [ 237.201785][ C0] task:rcu_preempt state:R running task stack:27008 pid: 15 ppid: 2 flags:0x00004000 [ 237.212621][ C0] Call Trace: [ 237.215920][ C0] [ 237.218875][ C0] __schedule+0x11b8/0x43b0 [ 237.223442][ C0] ? _raw_spin_lock_irqsave+0x7f/0xf0 [ 237.228851][ C0] ? _raw_spin_unlock_irqrestore+0x82/0x100 [ 237.234775][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 237.240697][ C0] ? _raw_spin_unlock+0x40/0x40 [ 237.245578][ C0] ? rcu_is_watching+0x11/0xa0 [ 237.250366][ C0] ? release_firmware_map_entry+0x190/0x190 [ 237.256300][ C0] schedule+0x11b/0x1e0 [ 237.260480][ C0] schedule_timeout+0x15c/0x280 [ 237.265356][ C0] ? console_conditional_schedule+0x40/0x40 [ 237.271280][ C0] ? update_process_times+0x200/0x200 [ 237.276688][ C0] ? prepare_to_swait_event+0x331/0x350 [ 237.282269][ C0] rcu_gp_fqs_loop+0x29e/0x11b0 [ 237.287152][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 237.292376][ C0] ? rcu_gp_init+0xd58/0x10e0 [ 237.297076][ C0] ? rcu_gp_init+0x10e0/0x10e0 [ 237.301873][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 237.307103][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 237.312337][ C0] rcu_gp_kthread+0x98/0x350 [ 237.316952][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 237.322091][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 237.328010][ C0] ? __kthread_parkme+0x157/0x1b0 [ 237.333070][ C0] kthread+0x436/0x520 [ 237.337161][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 237.342289][ C0] ? kthread_blkcg+0xd0/0xd0 [ 237.346906][ C0] ret_from_fork+0x1f/0x30 [ 237.351364][ C0] [ 237.354398][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 237.360735][ C0] NMI backtrace for cpu 0 [ 237.365091][ C0] CPU: 0 PID: 4219 Comm: syz-executor178 Not tainted 5.15.185-syzkaller #0 [ 237.373838][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 237.383908][ C0] Call Trace: [ 237.387209][ C0] [ 237.390164][ C0] dump_stack_lvl+0x168/0x230 [ 237.394866][ C0] ? show_regs_print_info+0x20/0x20 [ 237.400092][ C0] ? load_image+0x3b0/0x3b0 [ 237.404763][ C0] ? irq_work_queue+0xbf/0x140 [ 237.409704][ C0] nmi_cpu_backtrace+0x397/0x3d0 [ 237.414689][ C0] ? nmi_trigger_cpumask_backtrace+0x280/0x280 [ 237.420870][ C0] ? _printk+0xcc/0x110 [ 237.425057][ C0] ? cpu_online+0x1d/0x30 [ 237.429417][ C0] ? load_image+0x3b0/0x3b0 [ 237.433945][ C0] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 237.440038][ C0] nmi_trigger_cpumask_backtrace+0x163/0x280 [ 237.446054][ C0] rcu_check_gp_kthread_starvation+0x1cd/0x250 [ 237.452237][ C0] print_other_cpu_stall+0x10c8/0x1220 [ 237.457729][ C0] ? print_cpu_stall+0x5f0/0x5f0 [ 237.462692][ C0] ? timekeeping_advance+0x7f6/0xac0 [ 237.468012][ C0] ? __lock_acquire+0x7c60/0x7c60 [ 237.473071][ C0] rcu_sched_clock_irq+0x831/0x1110 [ 237.478305][ C0] ? rcutree_dead_cpu+0x20/0x20 [ 237.483181][ C0] ? hrtimer_run_queues+0x162/0x440 [ 237.488407][ C0] ? account_process_tick+0x227/0x3a0 [ 237.493916][ C0] update_process_times+0x193/0x200 [ 237.499153][ C0] tick_sched_timer+0x37d/0x560 [ 237.504037][ C0] __hrtimer_run_queues+0x4fe/0xc40 [ 237.509270][ C0] ? tick_setup_sched_timer+0x2c0/0x2c0 [ 237.514854][ C0] ? hrtimer_interrupt+0x8d0/0x8d0 [ 237.519993][ C0] ? ktime_get_update_offsets_now+0x3ce/0x3e0 [ 237.526197][ C0] hrtimer_interrupt+0x3bb/0x8d0 [ 237.531196][ C0] __sysvec_apic_timer_interrupt+0x137/0x4a0 [ 237.537226][ C0] sysvec_apic_timer_interrupt+0x9b/0xc0 [ 237.542902][ C0] [ 237.545864][ C0] [ 237.548820][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 237.554977][ C0] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 [ 237.560817][ C0] Code: f6 ff 0f 1f 00 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 8e 9a b1 f7 48 89 df e8 56 6f b2 f7 e8 a1 13 d3 f7 fb bf 01 00 00 00 86 93 a6 f7 65 8b 05 27 a3 57 76 85 c0 74 02 5b c3 e8 d4 ad 55 [ 237.580454][ C0] RSP: 0018:ffffc90002fafbc0 EFLAGS: 00000282 [ 237.586552][ C0] RAX: 049a539677a0e800 RBX: ffff888028436f00 RCX: 049a539677a0e800 [ 237.594739][ C0] RDX: dffffc0000000000 RSI: ffffffff8a0b11c0 RDI: 0000000000000001 [ 237.602745][ C0] RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1005086de1 [ 237.610759][ C0] R10: ffffed1005086de1 R11: 1ffff11005086de0 R12: ffff888028436f00 [ 237.618761][ C0] R13: 0000000000000021 R14: dffffc0000000000 R15: 000000001c000004 [ 237.626779][ C0] get_signal+0x11d6/0x12c0 [ 237.631333][ C0] arch_do_signal_or_restart+0xc1/0x1300 [ 237.636990][ C0] ? _copy_from_user+0x111/0x170 [ 237.641952][ C0] ? __ia32_sys_rt_sigreturn+0x660/0x790 [ 237.647619][ C0] ? load_gs_index+0x120/0x120 [ 237.652413][ C0] ? get_sigframe_size+0x10/0x10 [ 237.657393][ C0] ? exit_to_user_mode_loop+0x3b/0x130 [ 237.662888][ C0] exit_to_user_mode_loop+0x9e/0x130 [ 237.668199][ C0] exit_to_user_mode_prepare+0xb1/0x140 [ 237.673777][ C0] syscall_exit_to_user_mode+0x16/0x40 [ 237.679272][ C0] do_syscall_64+0x58/0xa0 [ 237.683716][ C0] ? clear_bhb_loop+0x30/0x80 [ 237.688418][ C0] ? clear_bhb_loop+0x30/0x80 [ 237.693126][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 237.699046][ C0] RIP: 0033:0x7fda68537dc9 [ 237.703484][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 1d 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 [ 237.723289][ C0] RSP: 002b:00007fffce63ab78 EFLAGS: 00000246 [ 237.729386][ C0] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007fda68537dc9 [ 237.737378][ C0] RDX: 000020000006b000 RSI: 0000000000000000 RDI: 0000000000000000 [ 237.745372][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 237.753364][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fda68588036 [ 237.761354][ C0] R13: 00007fffce63abb0 R14: 00007fffce63abf0 R15: 0000000000000000 [ 237.769363][ C0]