Warning: Permanently added '10.128.1.63' (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 [ 228.160520][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 228.167542][ C1] (detected by 1, t=10502 jiffies, g=7781, q=20) [ 228.173955][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294959955-4294949453), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 228.187310][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g7781 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 228.198409][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 228.208366][ C1] rcu: RCU grace-period kthread stack dump: [ 228.214250][ C1] task:rcu_preempt state:R running task stack:27536 pid: 15 ppid: 2 flags:0x00004000 [ 228.225027][ C1] Call Trace: [ 228.228299][ C1] [ 228.231231][ C1] __schedule+0x11ef/0x43c0 [ 228.235761][ C1] ? _raw_spin_unlock_irqrestore+0x82/0x120 [ 228.241662][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 228.246858][ C1] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 228.252749][ C1] ? _raw_spin_unlock+0x40/0x40 [ 228.257598][ C1] ? release_firmware_map_entry+0x190/0x190 [ 228.263516][ C1] ? __mod_timer+0x91e/0xd00 [ 228.268111][ C1] schedule+0x11b/0x1e0 [ 228.272267][ C1] schedule_timeout+0x184/0x2d0 [ 228.277113][ C1] ? console_conditional_schedule+0x40/0x40 [ 228.282998][ C1] ? update_process_times+0x200/0x200 [ 228.288368][ C1] ? prepare_to_swait_event+0x331/0x350 [ 228.293916][ C1] rcu_gp_fqs_loop+0x2be/0x11d0 [ 228.298761][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 228.303956][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 228.309153][ C1] ? rcu_gp_init+0xd6c/0x10f0 [ 228.313826][ C1] ? rcu_gp_init+0x10f0/0x10f0 [ 228.318584][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 228.323774][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 228.328965][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 228.334159][ C1] rcu_gp_kthread+0x9b/0x370 [ 228.338748][ C1] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 228.344636][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 228.349741][ C1] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 228.355629][ C1] ? __kthread_parkme+0x157/0x1b0 [ 228.360654][ C1] kthread+0x436/0x520 [ 228.364724][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 228.369828][ C1] ? kthread_blkcg+0xd0/0xd0 [ 228.374411][ C1] ret_from_fork+0x1f/0x30 [ 228.378922][ C1] [ 228.381932][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 228.388252][ C1] Sending NMI from CPU 1 to CPUs 0: [ 228.393465][ C0] NMI backtrace for cpu 0 [ 228.393486][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 [ 228.393502][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 228.393514][ C0] RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x2a/0x80 [ 228.393533][ C0] Code: 48 8b 04 24 65 48 8b 0d 44 37 89 7e 65 8b 15 45 37 89 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 5b 83 b9 34 16 00 00 00 <74> 52 8b 91 10 16 00 00 83 fa 03 75 47 48 8b 91 18 16 00 00 44 8b [ 228.393545][ C0] RSP: 0018:ffffc90000007960 EFLAGS: 00000046 [ 228.393558][ C0] RAX: ffffffff817f6090 RBX: 0000000000000001 RCX: ffffffff8c0bc480 [ 228.393569][ C0] RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000002 [ 228.393578][ C0] RBP: 0000000000000001 R08: ffffffff8d89f82f R09: 1ffffffff1b13f05 [ 228.393589][ C0] R10: dffffc0000000000 R11: fffffbfff1b13f06 R12: 0000000000000000 [ 228.393599][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 228.393609][ C0] FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 [ 228.393622][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 228.393633][ C0] CR2: 000055556c4d4348 CR3: 000000007d215000 CR4: 00000000003506f0 [ 228.393646][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 228.393656][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 228.393665][ C0] Call Trace: [ 228.393670][ C0] [ 228.393675][ C0] trace_hardirqs_on_prepare+0xb0/0x1f0 [ 228.393693][ C0] irqentry_exit+0x4b/0x70 [ 228.393709][ C0] asm_sysvec_irq_work+0x16/0x20 [ 228.393725][ C0] RIP: 0010:rcu_read_unlock_special+0x7f/0x4a0 [ 228.393740][ 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 d2 df 9c 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 [ 228.393751][ C0] RSP: 0018:ffffc90000007a40 EFLAGS: 00000206 [ 228.393763][ C0] RAX: eb6341b8cd7c9800 RBX: 1ffff92000000f4c RCX: eb6341b8cd7c9800 [ 228.393773][ C0] RDX: dffffc0000000000 RSI: ffffffff8a2b3100 RDI: ffffffff8a7a0700 [ 228.393784][ C0] RBP: ffffc90000007b08 R08: ffff8880b903b30b R09: 1ffff11017207661 [ 228.393795][ C0] R10: dffffc0000000000 R11: ffffed1017207662 R12: ffffffff8c323800 [ 228.393806][ C0] R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001 [ 228.393829][ C0] ? kasan_quarantine_put+0xd4/0x220 [ 228.393844][ C0] ? __rcu_read_unlock+0xd0/0xd0 [ 228.393858][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 228.393878][ C0] __rcu_read_unlock+0x78/0xd0 [ 228.393892][ C0] atomic_notifier_call_chain+0x254/0x280 [ 228.393911][ C0] profile_handoff_task+0x1a/0x40 [ 228.393925][ C0] __put_task_struct+0x2d1/0x480 [ 228.393941][ C0] rcu_core+0x9d2/0x1670 [ 228.393962][ C0] ? local_bh_disable+0x20/0x20 [ 228.393977][ C0] ? __lock_acquire+0x7d10/0x7d10 [ 228.393999][ C0] ? rebalance_domains+0xa0f/0xb30 [ 228.394021][ C0] handle_softirqs+0x339/0x830 [ 228.394037][ C0] ? __irq_exit_rcu+0x13b/0x230 [ 228.394053][ C0] ? do_softirq+0x210/0x210 [ 228.394068][ C0] ? irqtime_account_irq+0xb2/0x1b0 [ 228.394085][ C0] __irq_exit_rcu+0x13b/0x230 [ 228.394099][ C0] ? irq_exit_rcu+0x20/0x20 [ 228.394117][ C0] irq_exit_rcu+0x5/0x20 [ 228.394130][ C0] sysvec_apic_timer_interrupt+0xa0/0xc0 [ 228.394146][ C0] [ 228.394150][ C0] [ 228.394155][ C0] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 228.394169][ C0] RIP: 0010:default_idle+0xb/0x10 [ 228.394183][ C0] Code: b7 48 89 df e8 f6 2a f8 f7 eb ad e8 4f af f6 ff 00 00 cc cc 00 00 cc cc 00 00 cc cc 00 00 cc 66 90 0f 00 2d 97 a5 5f 00 fb f4 0f 1f 40 00 41 57 41 56 53 49 be 00 00 00 00 00 fc ff df 65 48 [ 228.394194][ C0] RSP: 0018:ffffffff8c007dc8 EFLAGS: 000002c6 [ 228.394206][ C0] RAX: eb6341b8cd7c9800 RBX: ffffffff8c0bc480 RCX: eb6341b8cd7c9800 [ 228.394217][ C0] RDX: 0000000000000001 RSI: ffffffff8a2b3100 RDI: ffffffff8a7a0700 [ 228.394227][ C0] RBP: ffffffff8c007ef8 R08: ffff8880b903b30b R09: 1ffff11017207661 [ 228.394238][ C0] R10: dffffc0000000000 R11: ffffed1017207662 R12: 1ffffffff1800fc4 [ 228.394249][ C0] R13: dffffc0000000000 R14: 1ffffffff1817890 R15: 0000000000000000 [ 228.394267][ C0] default_idle_call+0x81/0xc0 [ 228.394280][ C0] do_idle+0x3a1/0x650 [ 228.394297][ C0] ? idle_inject_timer_fn+0x60/0x60 [ 228.394313][ C0] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 228.394333][ C0] cpu_startup_entry+0x14/0x20 [ 228.394348][ C0] ? time_init+0x40/0x40 [ 228.394362][ C0] start_kernel+0x489/0x540 [ 228.394381][ C0] secondary_startup_64_no_verify+0xb1/0xbb [ 228.394403][ C0] [ 229.890725][ T1110] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-... } 10674 jiffies s: 5009 root: 0x1/. [ 229.903086][ T1110] rcu: blocking rcu_node structures (internal RCU debug): [ 229.910217][ T1110] Task dump for CPU 0: [ 229.914332][ T1110] task:swapper/0 state:R running task stack:27864 pid: 0 ppid: 0 flags:0x00004008 [ 229.925152][ T1110] Call Trace: [ 229.928434][ T1110] [ 229.931413][ T1110] ? __bpf_trace_bpf_trace_printk+0x20/0x20 [ 229.937418][ T1110] ? rcu_nmi_exit+0x6f/0xf0 [ 229.941969][ T1110] ? perf_trace_run_bpf_submit+0x124/0x1c0 [ 229.947785][ T1110] ? rcu_is_watching+0x11/0xa0 [ 229.952593][ T1110] ? trace_hardirqs_off_finish+0xca/0x1f0 [ 229.958321][ T1110] ? sysvec_apic_timer_interrupt+0x80/0xc0 [ 229.964156][ T1110] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 229.970330][ T1110] ? default_idle+0xb/0x10 [ 229.974776][ T1110] ? default_idle_call+0x81/0xc0 [ 229.979715][ T1110] ? do_idle+0x3a1/0x650 [ 229.983996][ T1110] ? idle_inject_timer_fn+0x60/0x60 [ 229.989201][ T1110] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 229.995197][ T1110] ? cpu_startup_entry+0x14/0x20 [ 230.000145][ T1110] ? time_init+0x40/0x40 [ 230.004441][ T1110] ? start_kernel+0x489/0x540 [ 230.009127][ T1110] ? secondary_startup_64_no_verify+0xb1/0xbb [ 230.015251][ T1110]