Warning: Permanently added '10.128.1.27' (ED25519) to the list of known hosts. executing program executing program executing program executing program [ 77.099806][ T5832] kvm_intel: L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. executing program [ 78.637684][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 78.646592][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 78.655940][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 78.664650][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 78.673235][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! executing program [ 78.681868][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 78.690406][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 78.702841][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! [ 78.717021][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! executing program executing program executing program executing program [ 82.784964][ T0] NOHZ tick-stop error: local softirq work is pending, handler #200!!! executing program executing program executing program executing program executing program executing program [ 191.334199][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 191.341297][ C0] rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5839/1:b..l [ 191.349412][ C0] rcu: (detected by 0, t=10502 jiffies, g=8777, q=15 ncpus=2) [ 191.356982][ C0] task:udevd state:R running task stack:24376 pid:5839 tgid:5839 ppid:5200 task_flags:0x400140 flags:0x00080000 [ 191.370790][ C0] Call Trace: [ 191.374096][ C0] [ 191.377055][ C0] __schedule+0x150e/0x5070 [ 191.381645][ C0] ? __pfx___schedule+0x10/0x10 [ 191.386526][ C0] ? __lock_acquire+0x6b6/0x2cf0 [ 191.391498][ C0] ? preempt_schedule_irq+0xaa/0x150 [ 191.396816][ C0] preempt_schedule_irq+0xb5/0x150 [ 191.401955][ C0] ? __pfx_preempt_schedule_irq+0x10/0x10 [ 191.407698][ C0] ? __lock_acquire+0x6b6/0x2cf0 [ 191.412655][ C0] ? rcu_irq_exit_check_preempt+0xdf/0x210 [ 191.418480][ C0] irqentry_exit+0x5d8/0x660 [ 191.423096][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 191.429100][ C0] RIP: 0010:lock_acquire+0x58/0x340 [ 191.434309][ C0] Code: 8b 05 7c 42 01 11 48 89 44 24 58 0f 1f 44 00 00 65 8b 05 7f 42 01 11 83 f8 08 0f 83 af 01 00 00 89 c0 48 0f a3 05 a8 c1 03 0e <73> 0d e8 c1 29 09 00 84 c0 0f 84 d7 01 00 00 83 3d c2 f1 03 0e 00 [ 191.453933][ C0] RSP: 0018:ffffc90003ab7880 EFLAGS: 00000297 [ 191.460010][ C0] RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000002 [ 191.467995][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e13f2e0 [ 191.475988][ C0] RBP: ffffffff81ac149d R08: 0000000000000000 R09: 0000000000000000 [ 191.484062][ C0] R10: ffffc90003ab79f8 R11: ffffffff81ad9d50 R12: 0000000000000002 [ 191.492043][ C0] R13: ffffffff8e13f2e0 R14: 0000000000000000 R15: 0000000000000000 [ 191.500027][ C0] ? is_module_text_address+0x1d/0x1e0 [ 191.505594][ C0] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 191.511777][ C0] ? unwind_next_frame+0xa5/0x23d0 [ 191.516924][ C0] ? unwind_next_frame+0xa5/0x23d0 [ 191.522059][ C0] ? unwind_next_frame+0x1ab6/0x23d0 [ 191.527358][ C0] ? is_module_text_address+0x1d/0x1e0 [ 191.532838][ C0] is_module_text_address+0x39/0x1e0 [ 191.538132][ C0] ? is_module_text_address+0x1d/0x1e0 [ 191.543605][ C0] kernel_text_address+0x94/0xe0 [ 191.548564][ C0] __kernel_text_address+0xd/0x40 [ 191.553612][ C0] unwind_get_return_address+0x4d/0x90 [ 191.559084][ C0] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 191.565256][ C0] arch_stack_walk+0xfc/0x150 [ 191.569962][ C0] stack_trace_save+0x9c/0xe0 [ 191.574657][ C0] ? __pfx_stack_trace_save+0x10/0x10 [ 191.580043][ C0] ? __lock_acquire+0x6b6/0x2cf0 [ 191.584999][ C0] kasan_save_track+0x3e/0x80 [ 191.589690][ C0] ? kasan_save_track+0x3e/0x80 [ 191.594551][ C0] ? __kasan_kmalloc+0x93/0xb0 [ 191.599422][ C0] ? __kmalloc_cache_noprof+0x3e2/0x700 [ 191.604985][ C0] ? kmem_cache_free+0x16b/0x620 [ 191.609937][ C0] ? fput_close_sync+0x113/0x220 [ 191.614891][ C0] ? __x64_sys_close+0x7f/0x110 [ 191.619760][ C0] ? do_syscall_64+0xfa/0xf80 [ 191.624462][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.630605][ C0] __kasan_kmalloc+0x93/0xb0 [ 191.635222][ C0] __kmalloc_cache_noprof+0x3e2/0x700 [ 191.640634][ C0] ? kmem_cache_free+0x16b/0x620 [ 191.645624][ C0] ? __phys_addr+0xd3/0x180 [ 191.650176][ C0] kmem_cache_free+0x16b/0x620 [ 191.654977][ C0] ? fput_close_sync+0x113/0x220 [ 191.659968][ C0] fput_close_sync+0x113/0x220 [ 191.664768][ C0] ? __pfx_fput_close_sync+0x10/0x10 [ 191.670089][ C0] ? do_raw_spin_unlock+0x122/0x240 [ 191.675328][ C0] __x64_sys_close+0x7f/0x110 [ 191.680042][ C0] do_syscall_64+0xfa/0xf80 [ 191.684573][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.690653][ C0] ? clear_bhb_loop+0x60/0xb0 [ 191.695348][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 191.701264][ C0] RIP: 0033:0x7f81dd115a67 [ 191.705718][ C0] RSP: 002b:00007fff667f7198 EFLAGS: 00000297 ORIG_RAX: 0000000000000003 [ 191.714151][ C0] RAX: ffffffffffffffda RBX: 000055fc980e67a0 RCX: 00007f81dd115a67 [ 191.722139][ C0] RDX: 00007f81dd1efea0 RSI: 000055fc98102f80 RDI: 0000000000000008 [ 191.730130][ C0] RBP: 00007f81dd1efff0 R08: 0000000000000000 R09: 0000000000000000 [ 191.738116][ C0] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000000 [ 191.746104][ C0] R13: 3d45505954564544 R14: 3d5845444e494649 R15: 3d454d414e564544 [ 191.754117][ C0] [ 191.757171][ C0] rcu: rcu_preempt kthread starved for 10434 jiffies! g8777 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 191.768289][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 191.778271][ C0] rcu: RCU grace-period kthread stack dump: [ 191.784171][ C0] task:rcu_preempt state:R running task stack:27728 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000 [ 191.797702][ C0] Call Trace: [ 191.800993][ C0] [ 191.803950][ C0] __schedule+0x150e/0x5070 [ 191.808531][ C0] ? lockdep_hardirqs_on+0x98/0x140 [ 191.813774][ C0] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 191.819689][ C0] ? __pfx___schedule+0x10/0x10 [ 191.824589][ C0] ? schedule+0x91/0x360 [ 191.828857][ C0] schedule+0x165/0x360 [ 191.833034][ C0] schedule_timeout+0x12b/0x270 [ 191.837903][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 191.843304][ C0] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 191.849227][ C0] ? __pfx_process_timeout+0x10/0x10 [ 191.854548][ C0] ? prepare_to_swait_event+0x341/0x380 [ 191.860122][ C0] rcu_gp_fqs_loop+0x301/0x1540 [ 191.864997][ C0] ? lockdep_hardirqs_on+0x98/0x140 [ 191.870214][ C0] ? __pfx_rcu_watching_snap_recheck+0x10/0x10 [ 191.876385][ C0] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 191.881696][ C0] ? _raw_spin_unlock_irq+0x2e/0x50 [ 191.886929][ C0] ? finish_swait+0xcd/0x1f0 [ 191.891552][ C0] rcu_gp_kthread+0x99/0x390 [ 191.896176][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 191.901409][ C0] ? __kthread_parkme+0x7b/0x200 [ 191.906373][ C0] ? __kthread_parkme+0x1a1/0x200 [ 191.911431][ C0] kthread+0x711/0x8a0 [ 191.915524][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 191.920751][ C0] ? __pfx_kthread+0x10/0x10 [ 191.925365][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 191.930588][ C0] ? lockdep_hardirqs_on+0x98/0x140 [ 191.935817][ C0] ? __pfx_kthread+0x10/0x10 [ 191.940470][ C0] ret_from_fork+0x599/0xb30 [ 191.945097][ C0] ? __pfx_ret_from_fork+0x10/0x10 [ 191.950250][ C0] ? __switch_to_asm+0x39/0x70 [ 191.955035][ C0] ? __switch_to_asm+0x33/0x70 [ 191.959818][ C0] ? __pfx_kthread+0x10/0x10 [ 191.964435][ C0] ret_from_fork_asm+0x1a/0x30 [ 191.969245][ C0] [ 191.972284][ C0] rcu: Stack dump where RCU GP kthread last ran: [ 191.978638][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 191.987637][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 [ 191.997701][ C0] RIP: 0010:pv_native_safe_halt+0x13/0x20 [ 192.003457][ C0] Code: cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 33 9e 2a 00 f3 0f 1e fa fb f4 48 ee 02 00 cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 [ 192.023082][ C0] RSP: 0018:ffffffff8de07d80 EFLAGS: 000002c6 [ 192.029184][ C0] RAX: 07339b2ba289ee00 RBX: ffffffff819786ba RCX: 07339b2ba289ee00 [ 192.037170][ C0] RDX: 0000000000000001 RSI: ffffffff8d997e54 RDI: ffffffff8be07960 [ 192.045155][ C0] RBP: ffffffff8de07ea8 R08: ffff8880b86336db R09: 1ffff110170c66db [ 192.053137][ C0] R10: dffffc0000000000 R11: ffffed10170c66dc R12: ffffffff8fa22f70 [ 192.061130][ C0] R13: 1ffffffff1bd29b8 R14: 0000000000000000 R15: 0000000000000000 [ 192.069125][ C0] FS: 0000000000000000(0000) GS:ffff888125c25000(0000) knlGS:0000000000000000 [ 192.078069][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 192.084662][ C0] CR2: 00007f82f03b7d58 CR3: 0000000072802000 CR4: 00000000003526f0 [ 192.092647][ C0] Call Trace: [ 192.095962][ C0] [ 192.098911][ C0] default_idle+0x13/0x20 [ 192.103256][ C0] default_idle_call+0x73/0xb0 [ 192.108059][ C0] do_idle+0x1ea/0x520 [ 192.112147][ C0] ? __pfx_do_idle+0x10/0x10 [ 192.116757][ C0] ? _raw_spin_unlock_irqrestore+0x85/0x110 [ 192.122677][ C0] ? lockdep_hardirqs_on+0x98/0x140 [ 192.128088][ C0] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 192.134005][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 192.140359][ C0] cpu_startup_entry+0x44/0x60 [ 192.145143][ C0] rest_init+0x2de/0x300 [ 192.149404][ C0] start_kernel+0x3ac/0x400 [ 192.153932][ C0] x86_64_start_reservations+0x24/0x30 [ 192.159408][ C0] x86_64_start_kernel+0x143/0x1c0 [ 192.164540][ C0] common_startup_64+0x13e/0x147 [ 192.169523][ C0]