Warning: Permanently added '10.128.0.81' (ED25519) to the list of known hosts. executing program executing program executing program executing program [ 229.843119][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 229.850213][ C1] (detected by 1, t=10502 jiffies, g=7169, q=81 ncpus=2) [ 229.857343][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294960114-4294949611), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 229.870757][ C1] rcu: rcu_preempt kthread starved for 10504 jiffies! g7169 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 229.881878][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 229.891861][ C1] rcu: RCU grace-period kthread stack dump: [ 229.897770][ C1] task:rcu_preempt state:R running task stack:26656 pid:16 ppid:2 flags:0x00004000 [ 229.908578][ C1] Call Trace: [ 229.911875][ C1] [ 229.914835][ C1] __schedule+0x143f/0x4570 [ 229.919393][ C1] ? _raw_spin_unlock+0x40/0x40 [ 229.924271][ C1] ? __mod_timer+0x956/0xee0 [ 229.928894][ C1] ? release_firmware_map_entry+0x18b/0x18b [ 229.934817][ C1] ? lockdep_softirqs_off+0x420/0x420 [ 229.940227][ C1] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 229.946141][ C1] ? _raw_spin_unlock+0x40/0x40 [ 229.951035][ C1] schedule+0xbf/0x180 [ 229.955131][ C1] schedule_timeout+0x1b9/0x300 [ 229.960002][ C1] ? console_conditional_schedule+0x40/0x40 [ 229.965912][ C1] ? update_process_times+0x1b0/0x1b0 [ 229.971313][ C1] ? prepare_to_swait_event+0x329/0x350 [ 229.976903][ C1] rcu_gp_fqs_loop+0x2d2/0x1150 [ 229.981792][ C1] ? lockdep_hardirqs_on+0x94/0x130 [ 229.987013][ C1] ? rcu_gp_init+0x15f0/0x15f0 [ 229.991804][ C1] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 229.997742][ C1] ? finish_swait+0xcf/0x1e0 [ 230.002385][ C1] rcu_gp_kthread+0xa3/0x3b0 [ 230.007008][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 230.012148][ C1] ? _raw_spin_unlock_irqrestore+0xd9/0x130 [ 230.018093][ C1] ? __kthread_parkme+0x168/0x1c0 [ 230.023158][ C1] kthread+0x28d/0x320 [ 230.027249][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 230.032399][ C1] ? kthread_blkcg+0xd0/0xd0 [ 230.037030][ C1] ret_from_fork+0x1f/0x30 [ 230.041493][ C1] [ 230.044534][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 230.050872][ C1] Sending NMI from CPU 1 to CPUs 0: [ 230.056106][ C0] NMI backtrace for cpu 0 [ 230.056123][ C0] CPU: 0 PID: 4270 Comm: syz-executor423 Not tainted 6.1.131-syzkaller #0 [ 230.056139][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 230.056148][ C0] RIP: 0010:native_apic_msr_write+0x35/0x50 [ 230.056188][ C0] Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 89 f6 31 d2 e9 bf e4 33 03 66 2e 0f 1f 84 00 00 00 00 00 [ 230.056200][ C0] RSP: 0018:ffffc90003e97820 EFLAGS: 00000046 [ 230.056215][ C0] RAX: 000000000000003e RBX: ffffffff8cdf5b30 RCX: 0000000000000838 [ 230.056244][ C0] RDX: 0000000000000000 RSI: 000000000000003e RDI: 0000000000000838 [ 230.056254][ C0] RBP: 0000000000000020 R08: ffffffff817ce908 R09: fffffbfff1d4168e [ 230.056265][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000003e [ 230.056276][ C0] R13: dffffc0000000000 R14: 000000000000003e R15: dffffc0000000000 [ 230.056288][ C0] FS: 00007f0e5eaf86c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 230.056302][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 230.056313][ C0] CR2: 00007f0e5eaf7e40 CR3: 000000007a0c2000 CR4: 00000000003506f0 [ 230.056329][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 230.056338][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 230.056348][ C0] Call Trace: [ 230.056355][ C0] [ 230.056361][ C0] ? nmi_cpu_backtrace+0x3de/0x560 [ 230.056379][ C0] ? read_lock_is_recursive+0x10/0x10 [ 230.056408][ C0] ? nmi_trigger_cpumask_backtrace+0x430/0x430 [ 230.056426][ C0] ? nmi_handle+0x25/0x440 [ 230.056459][ C0] ? nmi_cpu_backtrace_handler+0x8/0x10 [ 230.056474][ C0] ? nmi_handle+0x12e/0x440 [ 230.056499][ C0] ? nmi_handle+0x25/0x440 [ 230.056524][ C0] ? native_apic_msr_write+0x35/0x50 [ 230.056543][ C0] ? default_do_nmi+0x62/0x150 [ 230.056562][ C0] ? exc_nmi+0xa8/0x100 [ 230.056579][ C0] ? end_repeat_nmi+0x16/0x31 [ 230.056603][ C0] ? clockevents_program_min_delta+0x178/0x410 [ 230.056629][ C0] ? native_apic_msr_write+0x35/0x50 [ 230.056649][ C0] ? native_apic_msr_write+0x35/0x50 [ 230.056669][ C0] ? native_apic_msr_write+0x35/0x50 [ 230.056688][ C0] [ 230.056693][ C0] [ 230.056697][ C0] lapic_next_event+0x5b/0x70 [ 230.056720][ C0] clockevents_program_min_delta+0x1ae/0x410 [ 230.056753][ C0] hrtimer_start_range_ns+0xada/0xc80 [ 230.056780][ C0] posixtimer_rearm+0x1ad/0x3f0 [ 230.056800][ C0] ? alarmtimer_resume+0x50/0x50 [ 230.056817][ C0] ? do_raw_spin_unlock+0x137/0x8a0 [ 230.056838][ C0] dequeue_signal+0x245/0x590 [ 230.056864][ C0] ? unhandled_signal+0x1d0/0x1d0 [ 230.056889][ C0] ? uprobe_deny_signal+0x74/0x230 [ 230.056911][ C0] get_signal+0x5ed/0x17a0 [ 230.056943][ C0] ? ptrace_notify+0x370/0x370 [ 230.056972][ C0] arch_do_signal_or_restart+0xb0/0x1a10 [ 230.056999][ C0] ? __might_fault+0xa1/0x110 [ 230.057022][ C0] ? __lock_acquire+0x1f80/0x1f80 [ 230.057051][ C0] ? do_sigaltstack+0x3f3/0x610 [ 230.057073][ C0] ? get_sigframe_size+0x10/0x10 [ 230.057091][ C0] ? restore_altstack+0x107/0x150 [ 230.057110][ C0] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 230.057142][ C0] ? exit_to_user_mode_loop+0x39/0x100 [ 230.057160][ C0] exit_to_user_mode_loop+0x6a/0x100 [ 230.057177][ C0] exit_to_user_mode_prepare+0xb1/0x140 [ 230.057195][ C0] syscall_exit_to_user_mode+0x60/0x270 [ 230.057218][ C0] do_syscall_64+0x47/0xb0 [ 230.057233][ C0] ? clear_bhb_loop+0x45/0xa0 [ 230.057254][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 230.057275][ C0] RIP: 0033:0x7f0e5eb37457 [ 230.057295][ 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 [ 230.057308][ C0] RSP: 002b:00007f0e5eaf8218 EFLAGS: 00000246 [ 230.057321][ C0] RAX: 00000000000000ca RBX: 00007f0e5ebc1308 RCX: 00007f0e5eb37459 [ 230.057332][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f0e5ebc1308 [ 230.057342][ C0] RBP: 00007f0e5ebc1300 R08: 0000000000000000 R09: 0000000000000000 [ 230.057352][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000140 [ 230.057362][ C0] R13: 000020000006b000 R14: 0000200000000100 R15: 0000200000000680 [ 230.057381][ C0] [ 230.057388][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.286 msecs