Warning: Permanently added '10.128.0.37' (ED25519) to the list of known hosts. executing program executing program executing program executing program [ 99.858590][ C0] hrtimer: interrupt took 60842 ns [ 204.788528][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 204.795563][ C0] rcu: (detected by 0, t=10502 jiffies, g=9265, q=3 ncpus=2) [ 204.803050][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294957563-4294947061), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 204.816462][ C0] rcu: rcu_preempt kthread starved for 10502 jiffies! g9265 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 204.828040][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 204.838051][ C0] rcu: RCU grace-period kthread stack dump: [ 204.843987][ C0] task:rcu_preempt state:R running task stack:27656 pid:17 ppid:2 flags:0x00004000 [ 204.854850][ C0] Call Trace: [ 204.858176][ C0] [ 204.861152][ C0] __schedule+0x1553/0x45a0 [ 204.865746][ C0] ? _raw_spin_unlock_irqrestore+0x86/0x120 [ 204.871685][ C0] ? _raw_spin_unlock_irqrestore+0xc5/0x120 [ 204.877710][ C0] ? asan.module_dtor+0x20/0x20 [ 204.882627][ C0] ? enqueue_timer+0x23d/0x550 [ 204.887457][ C0] ? __mod_timer+0x984/0xdb0 [ 204.892120][ C0] schedule+0xbd/0x170 [ 204.896233][ C0] schedule_timeout+0x188/0x2d0 [ 204.901121][ C0] ? console_conditional_schedule+0x40/0x40 [ 204.907068][ C0] ? update_process_times+0x1b0/0x1b0 [ 204.912488][ C0] ? prepare_to_swait_event+0x339/0x360 [ 204.918083][ C0] rcu_gp_fqs_loop+0x313/0x1590 [ 204.922984][ C0] ? rcu_gp_init+0x1162/0x1560 [ 204.927793][ C0] ? rcu_gp_kthread+0x3b0/0x3b0 [ 204.932691][ C0] ? lockdep_hardirqs_on_prepare+0x40d/0x770 [ 204.938746][ C0] ? rcu_gp_init+0x1560/0x1560 [ 204.943541][ C0] ? rcu_gp_cleanup+0xb41/0xc90 [ 204.948427][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 204.953661][ C0] ? lockdep_hardirqs_on+0x98/0x150 [ 204.959085][ C0] rcu_gp_kthread+0x9d/0x3b0 [ 204.963736][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 204.968886][ C0] ? __kthread_parkme+0x7a/0x1c0 [ 204.973897][ C0] ? __kthread_parkme+0x162/0x1c0 [ 204.978973][ C0] kthread+0x2fa/0x390 [ 204.983092][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 204.988353][ C0] ? kthread_blkcg+0xd0/0xd0 [ 204.992984][ C0] ret_from_fork+0x48/0x80 [ 204.997528][ C0] ? kthread_blkcg+0xd0/0xd0 [ 205.002157][ C0] ret_from_fork_asm+0x11/0x20 [ 205.006981][ C0] [ 205.010042][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 205.016441][ C0] CPU: 0 PID: 5780 Comm: syz-executor419 Not tainted syzkaller #0 [ 205.024285][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 [ 205.034380][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0xc0/0x120 [ 205.040969][ C0] Code: c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 41 c6 04 07 f8 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 1b 69 ce f6 65 8b 05 ec 9f 75 75 85 c0 74 3c 48 c7 04 24 0e 36 [ 205.060633][ C0] RSP: 0018:ffffc90000007b20 EFLAGS: 00000206 [ 205.066742][ C0] RAX: dffffc0000000004 RBX: 0000000000000a02 RCX: ff74c4131ae8d000 [ 205.074765][ C0] RDX: dffffc0000000000 RSI: ffffffff8acac900 RDI: 0000000000000001 [ 205.082782][ C0] RBP: ffffc90000007bb0 R08: ffffffff911bf57f R09: 1ffffffff2237eaf [ 205.090818][ C0] R10: dffffc0000000000 R11: fffffbfff2237eb0 R12: dffffc0000000000 [ 205.098830][ C0] R13: ffffffff9763b980 R14: ffffffff8e12bbc0 R15: 1ffff92000000f64 [ 205.106839][ C0] FS: 00005555881d43c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 205.115813][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 205.122487][ C0] CR2: 0000000000000000 CR3: 0000000025b38000 CR4: 00000000003506f0 [ 205.130503][ C0] Call Trace: [ 205.133913][ C0] [ 205.136827][ C0] ? _raw_spin_unlock+0x40/0x40 [ 205.141723][ C0] ? lockdep_hardirqs_on_prepare+0x40d/0x770 [ 205.147758][ C0] call_timer_fn+0x189/0x540 [ 205.152516][ C0] ? dsp_cmx_receive+0x13d0/0x13d0 [ 205.157679][ C0] ? call_timer_fn+0xd2/0x540 [ 205.162414][ C0] ? __run_timers+0x800/0x800 [ 205.167155][ C0] ? dsp_cmx_receive+0x13d0/0x13d0 [ 205.172315][ C0] __run_timers+0x542/0x800 [ 205.176881][ C0] ? detach_timer+0x2b0/0x2b0 [ 205.181623][ C0] run_timer_softirq+0x67/0xf0 [ 205.186433][ C0] handle_softirqs+0x280/0x820 [ 205.191241][ C0] ? __irq_exit_rcu+0xd3/0x190 [ 205.196052][ C0] ? do_softirq+0x1a0/0x1a0 [ 205.200603][ C0] ? irqtime_account_irq+0xb6/0x1c0 [ 205.205844][ C0] __irq_exit_rcu+0xd3/0x190 [ 205.210499][ C0] ? irq_exit_rcu+0x20/0x20 [ 205.215049][ C0] irq_exit_rcu+0x9/0x20 [ 205.219324][ C0] sysvec_apic_timer_interrupt+0xa4/0xc0 [ 205.225004][ C0] [ 205.227969][ C0] [ 205.230938][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 205.236963][ C0] RIP: 0010:generic_exec_single+0x481/0x4f0 [ 205.242908][ C0] Code: 75 11 e8 72 03 0b 00 48 85 db 75 16 e8 68 03 0b 00 eb 15 e8 61 03 0b 00 e8 cc 5a 08 09 48 85 db 74 ea e8 52 03 0b 00 fb 31 c0 <48> c7 44 24 20 0e 36 e0 45 4b c7 04 2c 00 00 00 00 43 c7 44 2c 08 [ 205.262561][ C0] RSP: 0018:ffffc9000476fa00 EFLAGS: 00000246 [ 205.268674][ C0] RAX: 0000000000000000 RBX: 0000000000000200 RCX: ffff88807b0ebc00 [ 205.276681][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 205.284689][ C0] RBP: ffffc9000476fad0 R08: ffffffff911bf5cf R09: 1ffffffff2237eb9 [ 205.292705][ C0] R10: dffffc0000000000 R11: fffffbfff2237eba R12: 1ffff920008edf44 [ 205.300718][ C0] R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920008edf65 [ 205.308745][ C0] ? event_function+0x300/0x300 [ 205.313651][ C0] ? smp_call_function_single+0x5a0/0x5a0 [ 205.319419][ C0] ? percpu_counter_add_batch+0x1f1/0x2a0 [ 205.325190][ C0] ? lockdep_hardirqs_on+0x98/0x150 [ 205.330427][ C0] ? smp_call_function_single+0xb0/0x5a0 [ 205.336108][ C0] smp_call_function_single+0x36d/0x5a0 [ 205.341726][ C0] ? event_function+0x300/0x300 [ 205.346628][ C0] ? flush_smp_call_function_queue+0x250/0x250 [ 205.352836][ C0] ? event_function+0x300/0x300 [ 205.357774][ C0] perf_install_in_context+0x5be/0x920 [ 205.363324][ C0] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 205.369534][ C0] ? exclusive_event_installable+0x2c0/0x2c0 [ 205.375566][ C0] ? add_event_to_ctx+0x1180/0x1180 [ 205.380963][ C0] ? perf_event__header_size+0x153/0x220 [ 205.386656][ C0] ? __sanitizer_cov_trace_const_cmp8+0x30/0x80 [ 205.392951][ C0] ? perf_event__header_size+0x165/0x220 [ 205.398635][ C0] __se_sys_perf_event_open+0x1836/0x1c50 [ 205.404412][ C0] ? clockevents_program_event+0x230/0x310 [ 205.410341][ C0] ? __x64_sys_perf_event_open+0xc0/0xc0 [ 205.416038][ C0] ? lock_chain_count+0x20/0x20 [ 205.420936][ C0] ? lockdep_hardirqs_on_prepare+0x40d/0x770 [ 205.426970][ C0] ? lockdep_hardirqs_on+0x98/0x150 [ 205.432242][ C0] ? __x64_sys_perf_event_open+0x20/0xc0 [ 205.437928][ C0] do_syscall_64+0x55/0xa0 [ 205.442392][ C0] ? clear_bhb_loop+0x40/0x90 [ 205.447111][ C0] ? clear_bhb_loop+0x40/0x90 [ 205.451832][ C0] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 205.457776][ C0] RIP: 0033:0x7f078a60b6b9 [ 205.462266][ C0] Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 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 d8 ff ff ff f7 d8 64 89 01 48 [ 205.481948][ C0] RSP: 002b:00007ffe7dc04d08 EFLAGS: 00000246 ORIG_RAX: 000000000000012a [ 205.490495][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f078a60b6b9 [ 205.498507][ C0] RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000140 [ 205.506512][ C0] RBP: 0000000000000000 R08: 0000000000000002 R09: 0000000000000009 [ 205.514516][ C0] R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 [ 205.522540][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 205.530573][ C0]