Warning: Permanently added '10.128.1.18' (ED25519) to the list of known hosts.
executing program
syzkaller login: [ 176.834346][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 176.841452][ C0] (detected by 0, t=10502 jiffies, g=5337, q=69)
[ 176.847880][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294954813-4294944310), jiffies_till_next_fqs=1, root ->qsmask 0x0
[ 176.861269][ C0] rcu: rcu_preempt kthread starved for 10504 jiffies! g5337 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
[ 176.872390][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 176.882370][ C0] rcu: RCU grace-period kthread stack dump:
[ 176.888278][ C0] task:rcu_preempt state:R running task stack:27848 pid: 15 ppid: 2 flags:0x00004000
[ 176.899100][ C0] Call Trace:
[ 176.902397][ C0]
[ 176.905351][ C0] __schedule+0x11bb/0x4390
[ 176.909913][ C0] ? _raw_spin_lock_irqsave+0x7f/0xf0
[ 176.915320][ C0] ? _raw_spin_unlock_irqrestore+0x82/0x100
[ 176.921237][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100
[ 176.927243][ C0] ? _raw_spin_unlock+0x40/0x40
[ 176.932118][ C0] ? rcu_is_watching+0x11/0xa0
[ 176.936901][ C0] ? release_firmware_map_entry+0x190/0x190
[ 176.942827][ C0] schedule+0x11b/0x1e0
[ 176.947011][ C0] schedule_timeout+0x15c/0x280
[ 176.951882][ C0] ? console_conditional_schedule+0x40/0x40
[ 176.957803][ C0] ? update_process_times+0x200/0x200
[ 176.963212][ C0] ? prepare_to_swait_event+0x331/0x350
[ 176.968961][ C0] rcu_gp_fqs_loop+0x29e/0x11b0
[ 176.973844][ C0] ? lockdep_hardirqs_on+0x94/0x140
[ 176.979065][ C0] ? rcu_gp_init+0xd58/0x10e0
[ 176.983765][ C0] ? rcu_gp_init+0x10e0/0x10e0
[ 176.988555][ C0] ? _raw_spin_unlock_irq+0x1f/0x40
[ 176.993810][ C0] ? lockdep_hardirqs_on+0x94/0x140
[ 176.999030][ C0] rcu_gp_kthread+0x98/0x350
[ 177.003642][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0
[ 177.008812][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100
[ 177.014734][ C0] ? __kthread_parkme+0x157/0x1b0
[ 177.019792][ C0] kthread+0x436/0x520
[ 177.023878][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0
[ 177.029013][ C0] ? kthread_blkcg+0xd0/0xd0
[ 177.033629][ C0] ret_from_fork+0x1f/0x30
[ 177.038085][ C0]
[ 177.041118][ C0] rcu: Stack dump where RCU GP kthread last ran:
[ 177.047453][ C0] NMI backtrace for cpu 0
[ 177.051813][ C0] CPU: 0 PID: 4217 Comm: syz-executor380 Not tainted syzkaller #0
[ 177.059632][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
[ 177.069709][ C0] Call Trace:
[ 177.073002][ C0]
[ 177.075864][ C0] dump_stack_lvl+0x168/0x230
[ 177.080569][ C0] ? show_regs_print_info+0x20/0x20
[ 177.085789][ C0] ? load_image+0x3b0/0x3b0
[ 177.090432][ C0] ? irq_work_queue+0xbf/0x140
[ 177.095221][ C0] nmi_cpu_backtrace+0x397/0x3d0
[ 177.100184][ C0] ? nmi_trigger_cpumask_backtrace+0x280/0x280
[ 177.106359][ C0] ? _printk+0xcc/0x110
[ 177.110536][ C0] ? cpu_online+0x1d/0x30
[ 177.114886][ C0] ? load_image+0x3b0/0x3b0
[ 177.119420][ C0] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 177.125505][ C0] nmi_trigger_cpumask_backtrace+0x163/0x280
[ 177.131509][ C0] rcu_check_gp_kthread_starvation+0x1cd/0x250
[ 177.137692][ C0] print_other_cpu_stall+0x10c8/0x1220
[ 177.143181][ C0] ? print_cpu_stall+0x5f0/0x5f0
[ 177.148229][ C0] ? ktime_get+0x7b/0x270
[ 177.152583][ C0] ? __lock_acquire+0x7c60/0x7c60
[ 177.157651][ C0] rcu_sched_clock_irq+0x831/0x1110
[ 177.162880][ C0] ? rcutree_dead_cpu+0x20/0x20
[ 177.167756][ C0] ? account_process_tick+0x227/0x3a0
[ 177.173148][ C0] update_process_times+0x193/0x200
[ 177.178373][ C0] tick_sched_timer+0x37d/0x560
[ 177.183247][ C0] __hrtimer_run_queues+0x4fe/0xc40
[ 177.188475][ C0] ? tick_setup_sched_timer+0x2c0/0x2c0
[ 177.194052][ C0] ? hrtimer_interrupt+0x8d0/0x8d0
[ 177.199193][ C0] ? ktime_get_update_offsets_now+0x3ce/0x3e0
[ 177.205285][ C0] hrtimer_interrupt+0x3bb/0x8d0
[ 177.210265][ C0] __sysvec_apic_timer_interrupt+0x137/0x4a0
[ 177.216268][ C0] sysvec_apic_timer_interrupt+0x9b/0xc0
[ 177.221921][ C0]
[ 177.225038][ C0]
[ 177.227983][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 177.234005][ C0] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40
[ 177.239846][ 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 c1 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
[ 177.259472][ C0] RSP: 0018:ffffc90002f5fbc0 EFLAGS: 00000282
[ 177.265566][ C0] RAX: 7a7651a2f821ae00 RBX: ffff88802a8c40c0 RCX: 7a7651a2f821ae00
[ 177.273554][ C0] RDX: dffffc0000000000 RSI: ffffffff8a0b1820 RDI: 0000000000000001
[ 177.281555][ C0] RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1005518819
[ 177.289551][ C0] R10: ffffed1005518819 R11: 1ffff11005518818 R12: ffff88802a8c40c0
[ 177.297538][ C0] R13: 0000000000000021 R14: dffffc0000000000 R15: 000000001c000004
[ 177.305542][ C0] get_signal+0x11d6/0x12c0
[ 177.310095][ C0] arch_do_signal_or_restart+0xc1/0x1300
[ 177.315756][ C0] ? _copy_from_user+0x111/0x170
[ 177.320732][ C0] ? __ia32_sys_rt_sigreturn+0x660/0x790
[ 177.326405][ C0] ? load_gs_index+0x120/0x120
[ 177.331315][ C0] ? get_sigframe_size+0x10/0x10
[ 177.336385][ C0] ? exit_to_user_mode_loop+0x3b/0x130
[ 177.341869][ C0] exit_to_user_mode_loop+0x9e/0x130
[ 177.347183][ C0] exit_to_user_mode_prepare+0xee/0x180
[ 177.352752][ C0] syscall_exit_to_user_mode+0x16/0x40
[ 177.358230][ C0] do_syscall_64+0x58/0xa0
[ 177.362668][ C0] ? clear_bhb_loop+0x30/0x80
[ 177.367364][ C0] ? clear_bhb_loop+0x30/0x80
[ 177.372059][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 177.377970][ C0] RIP: 0033:0x7f7e887918d9
[ 177.382408][ 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
[ 177.402035][ C0] RSP: 002b:00007fff23d88aa8 EFLAGS: 00000246
[ 177.408121][ C0] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f7e887918d9
[ 177.416113][ C0] RDX: 000020000006b000 RSI: 0000000000000000 RDI: 0000000000000000
[ 177.424103][ C0] RBP: 0000000000000000 R08: 00007f7e88751990 R09: 00007f7e88751990
[ 177.432092][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7e887ef33c
[ 177.440079][ C0] R13: 00007f7e887e9106 R14: 00007fff23d88ae0 R15: 0000000000000000
[ 177.448092][ C0]