Warning: Permanently added '10.128.1.173' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 181.869638][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 181.876770][ C1] rcu: 0-...!: (0 ticks this GP) idle=5fd/1/0x4000000000000000 softirq=5715/5715 fqs=0 [ 181.886881][ C1] (detected by 1, t=10506 jiffies, g=5837, q=54) [ 181.893337][ C1] Sending NMI from CPU 1 to CPUs 0: [ 181.898575][ C0] NMI backtrace for cpu 0 [ 181.898598][ C0] CPU: 0 PID: 4210 Comm: syz-executor884 Not tainted syzkaller #0 [ 181.898613][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 181.898633][ C0] RIP: 0010:check_preemption_disabled+0x2e/0x110 [ 181.898686][ C0] Code: 56 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65 8b 05 39 d0 40 76 65 8b 0d a2 2a 41 76 f7 c1 ff ff ff 7f 74 1f <65> 48 8b 0c 25 28 00 00 00 48 3b 4c 24 08 0f 85 c4 00 00 00 48 83 [ 181.898703][ C0] RSP: 0018:ffffc90002eeee28 EFLAGS: 00000006 [ 181.898717][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000003 [ 181.898726][ C0] RDX: 0000000000000000 RSI: ffffffff8a7a48a0 RDI: ffffffff8a7a4860 [ 181.898737][ C0] RBP: ffffc90002eeefa0 R08: ffffffff8d8b1eef R09: 1ffffffff1b163dd [ 181.898749][ C0] R10: dffffc0000000000 R11: fffffbfff1b163de R12: ffffffff8c31ef60 [ 181.898761][ C0] R13: 1ffff920005ddddc R14: 0000000000000000 R15: dffffc0000000000 [ 181.898772][ C0] FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 [ 181.898786][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 181.898797][ C0] CR2: 00007f705a2577bc CR3: 000000007158c000 CR4: 00000000003506f0 [ 181.898811][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 181.898820][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 181.898830][ C0] Call Trace: [ 181.898837][ C0] [ 181.898854][ C0] rcu_is_watching+0x11/0xa0 [ 181.898871][ C0] lock_acquire+0xc8/0x400 [ 181.898893][ C0] ? rcu_lock_release+0x5/0x40 [ 181.898909][ C0] ? read_lock_is_recursive+0x10/0x10 [ 181.898930][ C0] ? llist_add_batch+0x85/0xa0 [ 181.898952][ C0] rcu_lock_acquire+0x2a/0x30 [ 181.898966][ C0] ? rcu_lock_acquire+0x5/0x30 [ 181.898980][ C0] perf_output_begin_forward+0xa5/0xa30 [ 181.898995][ C0] ? kvm_is_in_guest+0x24/0x30 [ 181.899016][ C0] ? perf_prepare_sample+0x1690/0x1cb0 [ 181.899036][ C0] ? __perf_cgroup_move+0x140/0x140 [ 181.899057][ C0] ? perf_callchain+0x190/0x190 [ 181.899073][ C0] ? rcu_lock_release+0x9/0x20 [ 181.899093][ C0] perf_event_output_forward+0x19b/0x2e0 [ 181.899111][ C0] ? perf_get_page_size+0x430/0x430 [ 181.899129][ C0] ? tracing_gen_ctx_irq_test+0xb3/0x130 [ 181.899147][ C0] ? perf_trace_buf_update+0xa8/0x230 [ 181.899164][ C0] ? __perf_event_account_interrupt+0x187/0x280 [ 181.899182][ C0] __perf_event_overflow+0x35f/0x550 [ 181.899202][ C0] perf_tp_event+0x324/0xbe0 [ 181.899220][ C0] ? perf_trace_run_bpf_submit+0x1c0/0x1c0 [ 181.899237][ C0] ? perf_tp_event+0xa7e/0xbe0 [ 181.899270][ C0] ? update_load_avg+0x4cc/0x11c0 [ 181.899290][ C0] perf_trace_run_bpf_submit+0xf3/0x1c0 [ 181.899309][ C0] perf_trace_preemptirq_template+0x2aa/0x360 [ 181.899328][ C0] ? asm_sysvec_irq_work+0x16/0x20 [ 181.899347][ C0] ? trace_event_raw_event_preemptirq_template+0x290/0x290 [ 181.899366][ C0] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 181.899386][ C0] ? lock_chain_count+0x20/0x20 [ 181.899406][ C0] ? asm_sysvec_irq_work+0x16/0x20 [ 181.899423][ C0] trace_irq_enable_rcuidle+0x108/0x180 [ 181.899441][ C0] trace_hardirqs_on+0x57/0x80 [ 181.899457][ C0] asm_sysvec_irq_work+0x16/0x20 [ 181.899475][ C0] RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 [ 181.899492][ C0] Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 42 0b 9d 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08 [ 181.899504][ C0] RSP: 0018:ffffc90002eef720 EFLAGS: 00000206 [ 181.899517][ C0] RAX: 4495cd031af6d200 RBX: 1ffff920005ddee8 RCX: 4495cd031af6d200 [ 181.899529][ C0] RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a7a48c0 [ 181.899541][ C0] RBP: ffffc90002eef7f0 R08: ffffffff901f10c7 R09: 1ffffffff203e218 [ 181.899553][ C0] R10: dffffc0000000000 R11: fffffbfff203e219 R12: ffffffff8c323400 [ 181.899565][ C0] R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001 [ 181.899585][ C0] ? __rcu_read_unlock+0xd0/0xd0 [ 181.899601][ C0] ? rcu_lock_acquire+0x30/0x30 [ 181.899622][ C0] __rcu_read_unlock+0x78/0xd0 [ 181.899638][ C0] __unlock_page_memcg+0xea/0x100 [ 181.899655][ C0] unmap_page_range+0xee4/0x2410 [ 181.899686][ C0] unmap_vmas+0x131/0x250 [ 181.899702][ C0] ? unmap_page_range+0x2410/0x2410 [ 181.899716][ C0] ? __mutex_lock_common+0x435/0x2400 [ 181.899738][ C0] exit_mmap+0x3b9/0x640 [ 181.899757][ C0] ? vm_brk+0x20/0x20 [ 181.899779][ C0] ? uprobe_clear_state+0x2f6/0x460 [ 181.899798][ C0] __mmput+0x115/0x390 [ 181.899815][ C0] exit_mm+0x632/0x7b0 [ 181.899829][ C0] ? perf_pmu_migrate_context+0xb70/0xb70 [ 181.899849][ C0] ? do_exit+0x2110/0x2110 [ 181.899863][ C0] ? __ia32_sys_timer_delete+0x40/0x40 [ 181.899880][ C0] ? hrtimer_try_to_cancel+0x3d6/0x420 [ 181.899901][ C0] ? tty_audit_exit+0x149/0x1f0 [ 181.899921][ C0] do_exit+0x5b8/0x2110 [ 181.899938][ C0] ? put_task_struct+0x80/0x80 [ 181.899951][ C0] ? rcu_nmi_exit+0x6f/0xf0 [ 181.899973][ C0] ? lock_chain_count+0x20/0x20 [ 181.899992][ C0] do_group_exit+0x12c/0x2f0 [ 181.900009][ C0] __x64_sys_exit_group+0x3b/0x40 [ 181.900044][ C0] do_syscall_64+0x4c/0xa0 [ 181.900060][ C0] ? clear_bhb_loop+0x30/0x80 [ 181.900076][ C0] ? clear_bhb_loop+0x30/0x80 [ 181.900093][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 181.900111][ C0] RIP: 0033:0x7f705a1eecc5 [ 181.900128][ C0] Code: Unable to access opcode bytes at RIP 0x7f705a1eec9b. [ 181.900136][ C0] RSP: 002b:00007fffc8b1dca8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 [ 181.900151][ C0] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f705a1eecc5 [ 181.900162][ C0] RDX: 00000000000000e7 RSI: ffffffffffffffd8 RDI: 0000000000000000 [ 181.900172][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000009 [ 181.900181][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 181.900190][ C0] R13: 00007f705a288100 R14: 00007f705a28a3a8 R15: 00007f705a28a3c0 [ 181.900209][ C0] [ 181.900219][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.640 msecs [ 181.900583][ C1] rcu: rcu_preempt kthread timer wakeup didn't happen for 10505 jiffies! g5837 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 182.504022][ C1] rcu: Possible timer handling issue on cpu=0 timer-softirq=1823 [ 182.511867][ C1] rcu: rcu_preempt kthread starved for 10506 jiffies! g5837 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=0 [ 182.523169][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 182.533154][ C1] rcu: RCU grace-period kthread stack dump: [ 182.539095][ C1] task:rcu_preempt state:I stack:28240 pid: 15 ppid: 2 flags:0x00004000 [ 182.548331][ C1] Call Trace: [ 182.551663][ C1] [ 182.554618][ C1] __schedule+0x11c3/0x4350 [ 182.559181][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 182.564414][ C1] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 182.570331][ C1] ? _raw_spin_unlock+0x40/0x40 [ 182.575212][ C1] ? rcu_is_watching+0x11/0xa0 [ 182.580003][ C1] ? release_firmware_map_entry+0x190/0x190 [ 182.585936][ C1] schedule+0x11b/0x1e0 [ 182.590132][ C1] schedule_timeout+0x184/0x2d0 [ 182.595008][ C1] ? console_conditional_schedule+0x40/0x40 [ 182.600927][ C1] ? update_process_times+0x200/0x200 [ 182.606339][ C1] ? prepare_to_swait_event+0x33d/0x360 [ 182.611927][ C1] rcu_gp_fqs_loop+0x2be/0x11f0 [ 182.616805][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 182.622041][ C1] ? rcu_gp_init+0xd72/0x10f0 [ 182.626745][ C1] ? rcu_gp_init+0x10f0/0x10f0 [ 182.631538][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 182.636757][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 182.641982][ C1] rcu_gp_kthread+0x9a/0x370 [ 182.646606][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 182.651743][ C1] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 182.657664][ C1] ? __kthread_parkme+0x14e/0x1b0 [ 182.662713][ C1] kthread+0x42e/0x520 [ 182.666803][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 182.671941][ C1] ? kthread_blkcg+0xd0/0xd0 [ 182.676555][ C1] ret_from_fork+0x1f/0x30 [ 182.681008][ C1] [ 182.684053][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 182.690425][ C1] Sending NMI from CPU 1 to CPUs 0: [ 182.695671][ C0] NMI backtrace for cpu 0 [ 182.695680][ C0] CPU: 0 PID: 4210 Comm: syz-executor884 Not tainted syzkaller #0 [ 182.695697][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 182.695706][ C0] RIP: 0010:__lock_acquire+0x5f0/0x7b50 [ 182.695727][ C0] Code: 24 89 c3 81 e3 ff 1f 00 00 c1 e8 03 25 f8 03 00 00 48 8d b8 c0 10 1f 90 be 08 00 00 00 e8 68 52 61 00 48 0f a3 1d 30 19 c2 0e <73> 1a 48 8d 04 5b c1 e0 06 48 8d 98 80 8f b7 8f 49 b8 00 00 00 00 [ 182.695740][ C0] RSP: 0018:ffffc90002eeed60 EFLAGS: 00000057 [ 182.695758][ C0] RAX: 0000000000000001 RBX: 0000000000000015 RCX: ffffffff815cf788 [ 182.695769][ C0] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff901f10c0 [ 182.695779][ C0] RBP: ffffc90002eeef90 R08: ffffffff901f10c7 R09: 1ffffffff203e218 [ 182.695791][ C0] R10: dffffc0000000000 R11: fffffbfff203e219 R12: ffff8880193946e0 [ 182.695803][ C0] R13: ffff888019393b80 R14: 0000000000000002 R15: ffff8880193946c0 [ 182.695815][ C0] FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 [ 182.695828][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 182.695839][ C0] CR2: 00007f705a2577bc CR3: 000000007158c000 CR4: 00000000003506f0 [ 182.695859][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 182.695868][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 182.695877][ C0] Call Trace: [ 182.695883][ C0] [ 182.695891][ C0] ? verify_lock_unused+0x140/0x140 [ 182.695911][ C0] ? __lock_acquire+0x1305/0x7b50 [ 182.695934][ C0] ? verify_lock_unused+0x140/0x140 [ 182.695955][ C0] ? rcu_lock_release+0x5/0x40 [ 182.695979][ C0] ? llist_add_batch+0x85/0xa0 [ 182.695999][ C0] lock_acquire+0x19e/0x400 [ 182.696017][ C0] ? rcu_lock_acquire+0x9/0x30 [ 182.696038][ C0] ? rcu_lock_release+0x9/0x20 [ 182.696055][ C0] ? read_lock_is_recursive+0x10/0x10 [ 182.696074][ C0] ? __lock_acquire+0x7b50/0x7b50 [ 182.696093][ C0] ? rcu_lock_release+0x9/0x20 [ 182.696115][ C0] rcu_lock_acquire+0x2a/0x30 [ 182.696131][ C0] ? rcu_lock_acquire+0x9/0x30 [ 182.696147][ C0] perf_event_output_forward+0xbc/0x2e0 [ 182.696165][ C0] ? perf_get_page_size+0x430/0x430 [ 182.696183][ C0] ? tracing_gen_ctx_irq_test+0xb3/0x130 [ 182.696202][ C0] ? perf_trace_buf_update+0xa8/0x230 [ 182.696219][ C0] ? __perf_event_account_interrupt+0x187/0x280 [ 182.696241][ C0] __perf_event_overflow+0x35f/0x550 [ 182.696259][ C0] perf_tp_event+0x324/0xbe0 [ 182.696277][ C0] ? perf_trace_run_bpf_submit+0x1c0/0x1c0 [ 182.696295][ C0] ? perf_tp_event+0xa7e/0xbe0 [ 182.696324][ C0] ? update_load_avg+0x4cc/0x11c0 [ 182.696348][ C0] perf_trace_run_bpf_submit+0xf3/0x1c0 [ 182.696367][ C0] perf_trace_preemptirq_template+0x2aa/0x360 [ 182.696386][ C0] ? asm_sysvec_irq_work+0x16/0x20 [ 182.696404][ C0] ? trace_event_raw_event_preemptirq_template+0x290/0x290 [ 182.696423][ C0] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 182.696443][ C0] ? lock_chain_count+0x20/0x20 [ 182.696462][ C0] ? asm_sysvec_irq_work+0x16/0x20 [ 182.696483][ C0] trace_irq_enable_rcuidle+0x108/0x180 [ 182.696501][ C0] trace_hardirqs_on+0x57/0x80 [ 182.696517][ C0] asm_sysvec_irq_work+0x16/0x20 [ 182.696538][ C0] RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 [ 182.696563][ C0] Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 42 0b 9d 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 20 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08 [ 182.696575][ C0] RSP: 0018:ffffc90002eef720 EFLAGS: 00000206 [ 182.696588][ C0] RAX: 4495cd031af6d200 RBX: 1ffff920005ddee8 RCX: 4495cd031af6d200 [ 182.696603][ C0] RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a7a48c0 [ 182.696615][ C0] RBP: ffffc90002eef7f0 R08: ffffffff901f10c7 R09: 1ffffffff203e218 [ 182.696626][ C0] R10: dffffc0000000000 R11: fffffbfff203e219 R12: ffffffff8c323400 [ 182.696638][ C0] R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001 [ 182.696657][ C0] ? __rcu_read_unlock+0xd0/0xd0 [ 182.696673][ C0] ? rcu_lock_acquire+0x30/0x30 [ 182.696693][ C0] __rcu_read_unlock+0x78/0xd0 [ 182.696709][ C0] __unlock_page_memcg+0xea/0x100 [ 182.696729][ C0] unmap_page_range+0xee4/0x2410 [ 182.696762][ C0] unmap_vmas+0x131/0x250 [ 182.696778][ C0] ? unmap_page_range+0x2410/0x2410 [ 182.696792][ C0] ? __mutex_lock_common+0x435/0x2400 [ 182.696813][ C0] exit_mmap+0x3b9/0x640 [ 182.696834][ C0] ? vm_brk+0x20/0x20 [ 182.696855][ C0] ? uprobe_clear_state+0x2f6/0x460 [ 182.696874][ C0] __mmput+0x115/0x390 [ 182.696890][ C0] exit_mm+0x632/0x7b0 [ 182.696905][ C0] ? perf_pmu_migrate_context+0xb70/0xb70 [ 182.696924][ C0] ? do_exit+0x2110/0x2110 [ 182.696938][ C0] ? __ia32_sys_timer_delete+0x40/0x40 [ 182.696958][ C0] ? hrtimer_try_to_cancel+0x3d6/0x420 [ 182.696984][ C0] ? tty_audit_exit+0x149/0x1f0 [ 182.697003][ C0] do_exit+0x5b8/0x2110 [ 182.697020][ C0] ? put_task_struct+0x80/0x80 [ 182.697033][ C0] ? rcu_nmi_exit+0x6f/0xf0 [ 182.697054][ C0] ? lock_chain_count+0x20/0x20 [ 182.697076][ C0] do_group_exit+0x12c/0x2f0 [ 182.697092][ C0] __x64_sys_exit_group+0x3b/0x40 [ 182.697107][ C0] do_syscall_64+0x4c/0xa0 [ 182.697122][ C0] ? clear_bhb_loop+0x30/0x80 [ 182.697139][ C0] ? clear_bhb_loop+0x30/0x80 [ 182.697156][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 182.697180][ C0] RIP: 0033:0x7f705a1eecc5 [ 182.697192][ C0] Code: Unable to access opcode bytes at RIP 0x7f705a1eec9b. [ 182.697202][ C0] RSP: 002b:00007fffc8b1dca8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 [ 182.697217][ C0] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f705a1eecc5 [ 182.697228][ C0] RDX: 00000000000000e7 RSI: ffffffffffffffd8 RDI: 0000000000000000 [ 182.697238][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000009 [ 182.697247][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 182.697256][ C0] R13: 00007f705a288100 R14: 00007f705a28a3a8 R15: 00007f705a28a3c0 [ 182.697273][ C0] [ 183.879749][ T1107] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-... } 10707 jiffies s: 489 root: 0x1/. [ 183.892092][ T1107] rcu: blocking rcu_node structures (internal RCU debug): [ 183.899283][ T1107] Task dump for CPU 0: [ 183.903455][ T1107] task:syz-executor884 state:R running task stack:26736 pid: 4210 ppid: 4200 flags:0x00000008 [ 183.914312][ T1107] Call Trace: [ 183.917626][ T1107] [ 183.920618][ T1107] ? __unlock_page_memcg+0xea/0x100 [ 183.925854][ T1107] ? unmap_page_range+0xee4/0x2410 [ 183.931138][ T1107] ? unmap_vmas+0x131/0x250 [ 183.935679][ T1107] ? unmap_page_range+0x2410/0x2410 [ 183.940941][ T1107] ? __mutex_lock_common+0x435/0x2400 [ 183.946371][ T1107] ? exit_mmap+0x3b9/0x640 [ 183.950853][ T1107] ? vm_brk+0x20/0x20 [ 183.954888][ T1107] ? uprobe_clear_state+0x2f6/0x460 [ 183.960148][ T1107] ? __mmput+0x115/0x390 [ 183.964428][ T1107] ? exit_mm+0x632/0x7b0 [ 183.968696][ T1107] ? perf_pmu_migrate_context+0xb70/0xb70 [ 183.974503][ T1107] ? do_exit+0x2110/0x2110 [ 183.978964][ T1107] ? __ia32_sys_timer_delete+0x40/0x40 [ 183.984549][ T1107] ? hrtimer_try_to_cancel+0x3d6/0x420 [ 183.990086][ T1107] ? tty_audit_exit+0x149/0x1f0 [ 183.994979][ T1107] ? do_exit+0x5b8/0x2110 [ 183.999350][ T1107] ? put_task_struct+0x80/0x80 [ 184.004264][ T1107] ? rcu_nmi_exit+0x6f/0xf0 [ 184.008813][ T1107] ? lock_chain_count+0x20/0x20 [ 184.013730][ T1107] ? do_group_exit+0x12c/0x2f0 [ 184.018535][ T1107] ? __x64_sys_exit_group+0x3b/0x40 [ 184.023791][ T1107] ? do_syscall_64+0x4c/0xa0 [ 184.028419][ T1107] ? clear_bhb_loop+0x30/0x80 [ 184.033185][ T1107] ? clear_bhb_loop+0x30/0x80 [ 184.037900][ T1107] ? entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 184.044051][ T1107]