Warning: Permanently added '10.128.10.9' (ED25519) to the list of known hosts. Setting up swapspace version 1, size = 127995904 bytes [ 73.020255][ T4162] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS executing program executing program executing program [ 178.270954][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 178.277677][ C1] rcu: 1-...!: (10499 ticks this GP) idle=43d/1/0x4000000000000000 softirq=5555/5555 fqs=0 [ 178.288286][ C1] (t=10500 jiffies g=4261 q=84) [ 178.293226][ C1] rcu: rcu_preempt kthread starved for 10500 jiffies! g4261 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 178.304340][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 178.314312][ C1] rcu: RCU grace-period kthread stack dump: [ 178.320204][ C1] task:rcu_preempt state:R running task stack:27848 pid: 15 ppid: 2 flags:0x00004000 [ 178.331080][ C1] Call Trace: [ 178.334361][ C1] <TASK> [ 178.337302][ C1] __schedule+0x11b8/0x43b0 [ 178.341836][ C1] ? _raw_spin_lock_irqsave+0x7f/0xf0 [ 178.347219][ C1] ? _raw_spin_unlock_irqrestore+0x82/0x100 [ 178.353120][ C1] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 178.359018][ C1] ? _raw_spin_unlock+0x40/0x40 [ 178.363880][ C1] ? rcu_is_watching+0x11/0xa0 [ 178.368651][ C1] ? release_firmware_map_entry+0x190/0x190 [ 178.374564][ C1] schedule+0x11b/0x1e0 [ 178.378731][ C1] schedule_timeout+0x15c/0x280 [ 178.383589][ C1] ? console_conditional_schedule+0x40/0x40 [ 178.389494][ C1] ? update_process_times+0x200/0x200 [ 178.395024][ C1] ? prepare_to_swait_event+0x331/0x350 [ 178.400576][ C1] rcu_gp_fqs_loop+0x29e/0x11b0 [ 178.405428][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 178.410633][ C1] ? rcu_gp_init+0xd58/0x10e0 [ 178.415312][ C1] ? rcu_gp_init+0x10e0/0x10e0 [ 178.420085][ C1] ? _raw_spin_unlock_irq+0x1f/0x40 [ 178.425284][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 178.430484][ C1] rcu_gp_kthread+0x98/0x350 [ 178.435073][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 178.440185][ C1] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 178.446082][ C1] ? __kthread_parkme+0x157/0x1b0 [ 178.451113][ C1] kthread+0x436/0x520 [ 178.455178][ C1] ? rcu_report_qs_rsp+0x1a0/0x1a0 [ 178.460289][ C1] ? kthread_blkcg+0xd0/0xd0 [ 178.464893][ C1] ret_from_fork+0x1f/0x30 [ 178.469329][ C1] </TASK> [ 178.472346][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 178.478660][ C1] Sending NMI from CPU 1 to CPUs 0: [ 178.483887][ C0] NMI backtrace for cpu 0 [ 178.483907][ C0] CPU: 0 PID: 4192 Comm: syz-executor162 Not tainted 5.15.181-syzkaller #0 [ 178.483924][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 178.483936][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x2c/0x60 [ 178.483956][ C0] Code: 04 24 65 48 8b 0d a4 b1 8a 7e 65 8b 15 a5 b1 8a 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 34 16 00 00 00 74 2c <8b> 91 10 16 00 00 83 fa 02 75 21 48 8b 91 18 16 00 00 48 8b 32 48 [ 178.483970][ C0] RSP: 0018:ffffc90002f5fa68 EFLAGS: 00000046 [ 178.483984][ C0] RAX: ffffffff817de0b3 RBX: 0000000000000000 RCX: ffff888027695940 [ 178.483997][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81485d6b [ 178.484007][ C0] RBP: ffffc90002f5fb30 R08: dffffc0000000000 R09: ffffed1004ed2b29 [ 178.484019][ C0] R10: ffffed1004ed2b29 R11: 1ffff11004ed2b28 R12: ffffffff812bda35 [ 178.484031][ C0] R13: 0000000000000000 R14: ffffffff81485d6b R15: 1ffff920005ebf54 [ 178.484043][ C0] FS: 00005555804073c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 [ 178.484058][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 178.484069][ C0] CR2: 00007fc8742d7320 CR3: 00000000752ec000 CR4: 00000000003506f0 [ 178.484084][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 178.484093][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 178.484109][ C0] Call Trace: [ 178.484114][ C0] <TASK> [ 178.484119][ C0] trace_irq_disable_rcuidle+0x13/0x180 [ 178.484139][ C0] ? local_bh_enable+0x5/0x20 [ 178.484156][ C0] __local_bh_enable_ip+0xcb/0x1b0 [ 178.484172][ C0] ? _local_bh_enable+0xa0/0xa0 [ 178.484187][ C0] ? rcu_is_watching+0x11/0xa0 [ 178.484205][ C0] fpu__restore_sig+0x785/0xf50 [ 178.484226][ C0] ? copy_fpstate_to_sigframe+0xb90/0xb90 [ 178.484252][ C0] ? __might_fault+0xb3/0x110 [ 178.484270][ C0] ? _copy_from_user+0x111/0x170 [ 178.484288][ C0] __ia32_sys_rt_sigreturn+0x649/0x790 [ 178.484312][ C0] ? load_gs_index+0x120/0x120 [ 178.484340][ C0] ? lock_chain_count+0x20/0x20 [ 178.484358][ C0] ? vtime_user_exit+0x2dc/0x400 [ 178.484378][ C0] ? lockdep_hardirqs_on+0x94/0x140 [ 178.484398][ C0] do_syscall_64+0x4c/0xa0 [ 178.484414][ C0] ? clear_bhb_loop+0x15/0x70 [ 178.484428][ C0] ? clear_bhb_loop+0x15/0x70 [ 178.484444][ C0] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 178.484464][ C0] RIP: 0033:0x7fc8742bdba9 [ 178.484478][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 1f 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 01 48 [ 178.484491][ C0] RSP: 002b:00007ffed17bf138 EFLAGS: 00000246 [ 178.484503][ C0] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007fc8742bdba9 [ 178.484514][ C0] RDX: 000020000006b000 RSI: 0000000000000000 RDI: 0000000000000000 [ 178.484524][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 178.484533][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc87430e191 [ 178.484543][ C0] R13: 00007ffed17bf460 R14: 00007ffed17bf170 R15: 0000000000000000 [ 178.484561][ C0] </TASK> [ 178.484879][ C1] NMI backtrace for cpu 1 [ 178.791870][ C1] CPU: 1 PID: 4191 Comm: syz-executor162 Not tainted 5.15.181-syzkaller #0 [ 178.800452][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 178.810498][ C1] Call Trace: [ 178.813784][ C1] <IRQ> [ 178.816636][ C1] dump_stack_lvl+0x168/0x230 [ 178.821324][ C1] ? show_regs_print_info+0x20/0x20 [ 178.826525][ C1] ? load_image+0x3b0/0x3b0 [ 178.831026][ C1] ? try_to_wake_up+0x3d4/0x1050 [ 178.835972][ C1] nmi_cpu_backtrace+0x397/0x3d0 [ 178.840913][ C1] ? nmi_trigger_cpumask_backtrace+0x280/0x280 [ 178.847076][ C1] ? _raw_spin_lock_irqsave+0xb0/0xf0 [ 178.852447][ C1] ? _raw_spin_lock+0x40/0x40 [ 178.857126][ C1] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 178.863201][ C1] nmi_trigger_cpumask_backtrace+0x163/0x280 [ 178.869187][ C1] rcu_dump_cpu_stacks+0x22f/0x380 [ 178.874312][ C1] print_cpu_stall+0x31d/0x5f0 [ 178.879087][ C1] rcu_sched_clock_irq+0x6d8/0x1110 [ 178.884297][ C1] ? rcutree_dead_cpu+0x20/0x20 [ 178.889156][ C1] ? account_process_tick+0x227/0x3a0 [ 178.894536][ C1] update_process_times+0x193/0x200 [ 178.899746][ C1] tick_sched_timer+0x37d/0x560 [ 178.904607][ C1] __hrtimer_run_queues+0x4fe/0xc40 [ 178.909827][ C1] ? tick_setup_sched_timer+0x2c0/0x2c0 [ 178.915381][ C1] ? hrtimer_interrupt+0x8d0/0x8d0 [ 178.920497][ C1] ? ktime_get_update_offsets_now+0x3ce/0x3e0 [ 178.926580][ C1] hrtimer_interrupt+0x3bb/0x8d0 [ 178.931539][ C1] __sysvec_apic_timer_interrupt+0x137/0x4a0 [ 178.937528][ C1] sysvec_apic_timer_interrupt+0x9b/0xc0 [ 178.943165][ C1] </IRQ> [ 178.946091][ C1] <TASK> [ 178.949019][ C1] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 178.955002][ C1] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 [ 178.960899][ C1] Code: f6 ff 0f 1f 00 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 4e d6 b1 f7 48 89 df e8 16 ab b2 f7 e8 71 4f d3 f7 fb bf 01 00 00 00 <e8> 46 cf a6 f7 65 8b 05 e7 e2 57 76 85 c0 74 02 5b c3 e8 94 ed 55 [ 178.980502][ C1] RSP: 0018:ffffc90002ecfbc0 EFLAGS: 00000282 [ 178.986573][ C1] RAX: 9202705682eb1400 RBX: ffff88802a5a8940 RCX: 9202705682eb1400 [ 178.994548][ C1] RDX: dffffc0000000000 RSI: ffffffff8a0b0fc0 RDI: 0000000000000001 [ 179.002530][ C1] RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed10054b5129 [ 179.010507][ C1] R10: ffffed10054b5129 R11: 1ffff110054b5128 R12: ffff88802a5a8940 [ 179.018491][ C1] R13: 0000000000000021 R14: dffffc0000000000 R15: 000000001c000004 [ 179.026485][ C1] get_signal+0x11d6/0x12c0 [ 179.031015][ C1] arch_do_signal_or_restart+0xc1/0x1300 [ 179.036659][ C1] ? _copy_from_user+0x111/0x170 [ 179.041607][ C1] ? __ia32_sys_rt_sigreturn+0x660/0x790 [ 179.047256][ C1] ? load_gs_index+0x120/0x120 [ 179.052035][ C1] ? get_sigframe_size+0x10/0x10 [ 179.056997][ C1] ? exit_to_user_mode_loop+0x3b/0x130 [ 179.062471][ C1] exit_to_user_mode_loop+0x9e/0x130 [ 179.067769][ C1] exit_to_user_mode_prepare+0xb1/0x140 [ 179.073336][ C1] syscall_exit_to_user_mode+0x16/0x40 [ 179.078818][ C1] do_syscall_64+0x58/0xa0 [ 179.083241][ C1] ? clear_bhb_loop+0x15/0x70 [ 179.087919][ C1] ? clear_bhb_loop+0x15/0x70 [ 179.092700][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 179.098602][ C1] RIP: 0033:0x7fc87430d5e8 [ 179.103019][ C1] Code: 0d c5 3b 03 00 39 48 08 75 ac 48 8b 15 b1 3b 03 00 48 8b 38 48 89 10 c7 05 d9 3b 03 00 00 00 00 00 e8 fc 20 f9 ff eb 8e 00 00 <48> 83 ec 08 48 83 c4 08 c3 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 179.122626][ C1] RSP: 002b:00007ffed17bf0d8 EFLAGS: 00010202 [ 179.128698][ C1] RAX: 00007fc874341ad0 RBX: 0000000000000000 RCX: 0000000000000004 [ 179.136668][ C1] RDX: 00007fc874343e40 RSI: 0000000000000000 RDI: 00007fc874341ad0 [ 179.144644][ C1] RBP: 00007fc874340130 R08: 0000000000000000 R09: 0000000000000000 [ 179.152621][ C1] R10: 0000000000000000 R11: 0000000000000293 R12: 00007fc874343e28 [ 179.160605][ C1] R13: 0000000000000000 R14: 00007fc874343e40 R15: 00007fc874280840 [ 179.168588][ C1] </TASK>