Warning: Permanently added '10.128.1.71' (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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 [ 301.387306][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 301.394457][ C1] (detected by 1, t=10502 jiffies, g=14401, q=147) [ 301.401071][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294967271-4294956769), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 301.414538][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g14401 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 301.425762][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 301.435838][ C1] rcu: RCU grace-period kthread stack dump: [ 301.441778][ C1] task:rcu_preempt state:R running task stack:26960 pid: 15 ppid: 2 flags:0x00004000 [ 301.452609][ C1] Call Trace: [ 301.455910][ C1] [ 301.458874][ C1] __schedule+0x11c3/0x4350 [ 301.463446][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 301.468671][ C1] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 301.474587][ C1] ? _raw_spin_unlock+0x40/0x40 [ 301.479461][ C1] ? rcu_is_watching+0x11/0xa0 [ 301.484249][ C1] ? release_firmware_map_entry+0x190/0x190 [ 301.490181][ C1] schedule+0x11b/0x1e0 [ 301.494367][ C1] schedule_timeout+0x184/0x2d0 [ 301.499242][ C1] ? console_conditional_schedule+0x40/0x40 [ 301.505158][ C1] ? update_process_times+0x200/0x200 [ 301.510559][ C1] ? prepare_to_swait_event+0x33d/0x360 [ 301.516133][ C1] rcu_gp_fqs_loop+0x2be/0x11f0 [ 301.521016][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 301.526246][ C1] ? rcu_gp_init+0xd72/0x10f0 [ 301.530944][ C1] ? rcu_gp_init+0x10f0/0x10f0 [ 301.535734][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 301.540963][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 301.546338][ C1] rcu_gp_kthread+0x9a/0x370 [ 301.550974][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 301.556121][ C1] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 301.562078][ C1] ? __kthread_parkme+0x14e/0x1b0 [ 301.567134][ C1] kthread+0x42e/0x520 [ 301.571226][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 301.576365][ C1] ? kthread_blkcg+0xd0/0xd0 [ 301.581013][ C1] ret_from_fork+0x1f/0x30 [ 301.585467][ C1] [ 301.588503][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 301.594862][ C1] Sending NMI from CPU 1 to CPUs 0: [ 301.600099][ C0] NMI backtrace for cpu 0 [ 301.600118][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 [ 301.600132][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 [ 301.600145][ C0] RIP: 0010:lock_acquire+0x127/0x400 [ 301.600171][ C0] Code: c0 0f 85 43 01 00 00 65 4c 8b 35 14 84 a5 7e 49 81 c6 ec 0a 00 00 4c 89 f0 48 c1 e8 03 42 0f b6 04 38 84 c0 0f 85 08 02 00 00 <41> 83 3e 00 0f 85 16 01 00 00 43 c6 44 3d 08 00 48 c7 84 24 a0 00 [ 301.600185][ C0] RSP: 0018:ffffc90000006ce0 EFLAGS: 00000046 [ 301.600198][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: e7c469c116e11800 [ 301.600209][ C0] RDX: 0000000000000000 RSI: ffffffff8a7a43a0 RDI: ffffffff8a7a4360 [ 301.600220][ C0] RBP: ffffc90000006e00 R08: ffffffff8d8b0eef R09: 1ffffffff1b161dd [ 301.600232][ C0] R10: dffffc0000000000 R11: fffffbfff1b161de R12: ffffffff8c31ef60 [ 301.600244][ C0] R13: 1ffff92000000da8 R14: ffffffff8c0bcf6c R15: dffffc0000000000 [ 301.600256][ C0] FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 [ 301.600270][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 301.600281][ C0] CR2: 0000555577e69328 CR3: 00000000735ba000 CR4: 00000000003506f0 [ 301.600295][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 301.600304][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 301.600314][ C0] Call Trace: [ 301.600320][ C0] [ 301.600329][ C0] ? rcu_lock_release+0x5/0x40 [ 301.600345][ C0] ? read_lock_is_recursive+0x10/0x10 [ 301.600364][ C0] ? __lock_acquire+0x7b50/0x7b50 [ 301.600383][ C0] ? llist_add_batch+0x85/0xa0 [ 301.600405][ C0] rcu_lock_acquire+0x2a/0x30 [ 301.600419][ C0] ? rcu_lock_acquire+0x5/0x30 [ 301.600433][ C0] perf_output_begin_forward+0xa5/0xa30 [ 301.600448][ C0] ? kvm_is_in_guest+0x24/0x30 [ 301.600475][ C0] ? perf_prepare_sample+0x1690/0x1cb0 [ 301.600494][ C0] ? __perf_cgroup_move+0x140/0x140 [ 301.600510][ C0] ? perf_callchain+0x190/0x190 [ 301.600524][ C0] ? __lock_acquire+0x13dc/0x7b50 [ 301.600546][ C0] perf_event_output_forward+0x19b/0x2e0 [ 301.600564][ C0] ? perf_get_page_size+0x430/0x430 [ 301.600583][ C0] ? verify_lock_unused+0x140/0x140 [ 301.600601][ C0] ? __lock_acquire+0x13dc/0x7b50 [ 301.600621][ C0] ? __perf_event_account_interrupt+0x187/0x280 [ 301.600640][ C0] __perf_event_overflow+0x35f/0x550 [ 301.600659][ C0] perf_swevent_event+0x4b8/0x540 [ 301.600679][ C0] perf_tp_event+0x324/0xbe0 [ 301.600694][ C0] ? trace_pelt_se_tp+0x39/0x100 [ 301.600711][ C0] ? perf_trace_run_bpf_submit+0x1c0/0x1c0 [ 301.600741][ C0] ? sched_ttwu_pending+0x464/0x620 [ 301.600763][ C0] ? lock_repin_lock+0x3b0/0x3b0 [ 301.600786][ C0] perf_trace_run_bpf_submit+0xf3/0x1c0 [ 301.600805][ C0] perf_trace_preemptirq_template+0x2aa/0x360 [ 301.600825][ C0] ? irqentry_exit+0x4b/0x70 [ 301.600843][ C0] ? trace_event_raw_event_preemptirq_template+0x290/0x290 [ 301.600863][ C0] ? __irq_exit_rcu+0x147/0x230 [ 301.600878][ C0] ? irq_exit_rcu+0x20/0x20 [ 301.600894][ C0] ? irqentry_exit+0x4b/0x70 [ 301.600912][ C0] trace_hardirqs_on_prepare+0x193/0x1f0 [ 301.600930][ C0] irqentry_exit+0x4b/0x70 [ 301.600947][ C0] asm_sysvec_irq_work+0x16/0x20 [ 301.600965][ C0] RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 [ 301.600982][ 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 f2 0f 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 [ 301.600995][ C0] RSP: 0018:ffffc900000075e0 EFLAGS: 00000206 [ 301.601007][ C0] RAX: e7c469c116e11800 RBX: 1ffff92000000ec0 RCX: e7c469c116e11800 [ 301.601020][ C0] RDX: dffffc0000000000 RSI: ffffffff8a2b2be0 RDI: ffffffff8a7a43c0 [ 301.601032][ C0] RBP: ffffc900000076c0 R08: ffff8880b903b30b R09: 1ffff11017207661 [ 301.601043][ C0] R10: dffffc0000000000 R11: ffffed1017207662 R12: ffffffff8c323400 [ 301.601055][ C0] R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001 [ 301.601074][ C0] ? perf_tp_event+0xa7e/0xbe0 [ 301.601090][ C0] ? __rcu_read_unlock+0xd0/0xd0 [ 301.601105][ C0] ? read_lock_is_recursive+0x10/0x10 [ 301.601127][ C0] ? get_stack_info_noinstr+0x15/0x130 [ 301.601145][ C0] __rcu_read_unlock+0x78/0xd0 [ 301.601162][ C0] is_bpf_text_address+0x24f/0x270 [ 301.601178][ C0] ? start_kernel+0x489/0x540 [ 301.601197][ C0] __kernel_text_address+0x9a/0x100 [ 301.601217][ C0] unwind_get_return_address+0x49/0x80 [ 301.601236][ C0] ? stack_trace_save+0xf0/0xf0 [ 301.601252][ C0] arch_stack_walk+0xf2/0x140 [ 301.601273][ C0] ? start_kernel+0x489/0x540 [ 301.601291][ C0] ? kmem_cache_free+0x8f/0x210 [ 301.601307][ C0] stack_trace_save+0xa6/0xf0 [ 301.601323][ C0] ? stack_trace_snprint+0xe0/0xe0 [ 301.601338][ C0] ? __lock_acquire+0x1305/0x7b50 [ 301.601358][ C0] ? kmem_cache_free+0x8f/0x210 [ 301.601372][ C0] ? memset+0x1e/0x40 [ 301.601386][ C0] kasan_set_track+0x4b/0x70 [ 301.601402][ C0] ? kasan_set_track+0x4b/0x70 [ 301.601417][ C0] ? kasan_set_free_info+0x1f/0x40 [ 301.601434][ C0] ? ____kasan_slab_free+0xd5/0x110 [ 301.601450][ C0] ? slab_free_freelist_hook+0xec/0x170 [ 301.601472][ C0] ? kmem_cache_free+0x8f/0x210 [ 301.601486][ C0] ? rcu_core+0x96e/0x1650 [ 301.601500][ C0] ? handle_softirqs+0x336/0x830 [ 301.601514][ C0] ? __irq_exit_rcu+0x13b/0x230 [ 301.601528][ C0] ? irq_exit_rcu+0x5/0x20 [ 301.601542][ C0] ? sysvec_apic_timer_interrupt+0xa0/0xc0 [ 301.601559][ C0] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 301.601575][ C0] ? default_idle+0xb/0x10 [ 301.601589][ C0] ? default_idle_call+0x81/0xc0 [ 301.601602][ C0] ? do_idle+0x3a1/0x650 [ 301.601619][ C0] ? cpu_startup_entry+0x14/0x20 [ 301.601654][ C0] kasan_set_free_info+0x1f/0x40 [ 301.601672][ C0] ____kasan_slab_free+0xd5/0x110 [ 301.601691][ C0] slab_free_freelist_hook+0xec/0x170 [ 301.601708][ C0] ? rcu_core+0x96e/0x1650 [ 301.601724][ C0] kmem_cache_free+0x8f/0x210 [ 301.601742][ C0] rcu_core+0x96e/0x1650 [ 301.601763][ C0] ? local_bh_disable+0x20/0x20 [ 301.601779][ C0] ? __lock_acquire+0x7b50/0x7b50 [ 301.601804][ C0] ? rebalance_domains+0x892/0x9b0 [ 301.601826][ C0] handle_softirqs+0x336/0x830 [ 301.601844][ C0] ? __irq_exit_rcu+0x13b/0x230 [ 301.601862][ C0] ? do_softirq+0x210/0x210 [ 301.601876][ C0] ? hrtimer_interrupt+0x6a2/0x8b0 [ 301.601896][ C0] ? irqtime_account_irq+0xb2/0x1b0 [ 301.601914][ C0] __irq_exit_rcu+0x13b/0x230 [ 301.601930][ C0] ? irq_exit_rcu+0x20/0x20 [ 301.601950][ C0] irq_exit_rcu+0x5/0x20 [ 301.601964][ C0] sysvec_apic_timer_interrupt+0xa0/0xc0 [ 301.601982][ C0] [ 301.601986][ C0] [ 301.601991][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 301.602009][ C0] RIP: 0010:default_idle+0xb/0x10 [ 301.602023][ C0] Code: b7 48 89 df e8 56 8f f4 f7 eb ad e8 4f ab f6 ff 00 00 cc cc 00 00 cc cc 00 00 cc cc 00 00 cc 66 90 0f 00 2d b7 25 5c 00 fb f4 0f 1f 40 00 41 57 41 56 53 49 be 00 00 00 00 00 fc ff df 65 48 [ 301.602036][ C0] RSP: 0018:ffffffff8c007dc8 EFLAGS: 000002c6 [ 301.602048][ C0] RAX: e7c469c116e11800 RBX: ffffffff8c0bc480 RCX: e7c469c116e11800 [ 301.602060][ C0] RDX: 0000000000000001 RSI: ffffffff8a2b2be0 RDI: ffffffff8a7a43c0 [ 301.602071][ C0] RBP: ffffffff8c007ef8 R08: ffff8880b903b30b R09: 1ffff11017207661 [ 301.602083][ C0] R10: dffffc0000000000 R11: ffffed1017207662 R12: 1ffffffff1800fc4 [ 301.602094][ C0] R13: dffffc0000000000 R14: 1ffffffff1817890 R15: 0000000000000000 [ 301.602114][ C0] default_idle_call+0x81/0xc0 [ 301.602129][ C0] do_idle+0x3a1/0x650 [ 301.602148][ C0] ? idle_inject_timer_fn+0x60/0x60 [ 301.602166][ C0] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 301.602187][ C0] ? schedule_idle+0x57/0x90 [ 301.602206][ C0] cpu_startup_entry+0x14/0x20 [ 301.602224][ C0] ? time_init+0x40/0x40 [ 301.602240][ C0] start_kernel+0x489/0x540 [ 301.602261][ C0] secondary_startup_64_no_verify+0xb1/0xbb [ 301.602286][ C0] [ 301.602292][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.192 msecs [ 301.639580][ T1108] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-... } 10601 jiffies s: 8073 root: 0x1/. [ 302.402003][ T1108] rcu: blocking rcu_node structures (internal RCU debug): [ 302.409389][ T1108] Task dump for CPU 0: [ 302.413479][ T1108] task:swapper/0 state:R running task stack:27952 pid: 0 ppid: 0 flags:0x00004008 [ 302.424350][ T1108] Call Trace: [ 302.427689][ T1108] [ 302.430654][ T1108] ? perf_trace_preemptirq_template+0x2aa/0x360 [ 302.436936][ T1108] ? lockdep_hardirqs_on_prepare+0x448/0x7c0 [ 302.442995][ T1108] ? perf_trace_run_bpf_submit+0xf3/0x1c0 [ 302.448770][ T1108] ? lock_chain_count+0x20/0x20 [ 302.453673][ T1108] ? rcu_is_watching+0x11/0xa0 [ 302.458520][ T1108] ? trace_hardirqs_off_finish+0xca/0x1f0 [ 302.464281][ T1108] ? sysvec_apic_timer_interrupt+0x80/0xc0 [ 302.470146][ T1108] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 302.476341][ T1108] ? default_idle+0xb/0x10 [ 302.480816][ T1108] ? default_idle_call+0x81/0xc0 [ 302.485872][ T1108] ? do_idle+0x3a1/0x650 [ 302.490177][ T1108] ? idle_inject_timer_fn+0x60/0x60 [ 302.495419][ T1108] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 302.501679][ T1108] ? schedule_idle+0x57/0x90 [ 302.506308][ T1108] ? cpu_startup_entry+0x14/0x20 [ 302.511299][ T1108] ? time_init+0x40/0x40 [ 302.515596][ T1108] ? start_kernel+0x489/0x540 [ 302.520343][ T1108] ? secondary_startup_64_no_verify+0xb1/0xbb [ 302.526541][ T1108]