no interfaces have a carrier
[ 34.022334][ T3932] 8021q: adding VLAN 0 to HW filter on device bond0
[ 34.040274][ T3932] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting crond: OK
Starting sshd: OK
syzkaller
syzkaller login: [ 76.324839][ T26] cfg80211: failed to load regulatory.db
Warning: Permanently added '10.128.1.41' (ED25519) to the list of known hosts.
executing program
executing program
executing program
executing program
executing program
executing program
[ 190.123140][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 190.130237][ C0] (detected by 0, t=10502 jiffies, g=5809, q=96 ncpus=2)
[ 190.137356][ C0] rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294956149-4294945646), jiffies_till_next_fqs=1, root ->qsmask 0x0
[ 190.150748][ C0] rcu: rcu_preempt kthread starved for 10504 jiffies! g5809 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
[ 190.161863][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
[ 190.171832][ C0] rcu: RCU grace-period kthread stack dump:
[ 190.177730][ C0] task:rcu_preempt state:R running task stack:28096 pid:16 ppid:2 flags:0x00004000
[ 190.188538][ C0] Call Trace:
[ 190.191822][ C0]
[ 190.194762][ C0] __schedule+0x10ec/0x40b0
[ 190.199308][ C0] ? lockdep_hardirqs_on+0x94/0x140
[ 190.204522][ C0] ? _raw_spin_unlock+0x40/0x40
[ 190.209387][ C0] ? release_firmware_map_entry+0x18a/0x18a
[ 190.215302][ C0] schedule+0xb9/0x180
[ 190.219385][ C0] schedule_timeout+0x15c/0x280
[ 190.224266][ C0] ? console_conditional_schedule+0x40/0x40
[ 190.230181][ C0] ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[ 190.236183][ C0] ? update_process_times+0x1b0/0x1b0
[ 190.241575][ C0] ? prepare_to_swait_event+0x335/0x350
[ 190.247139][ C0] rcu_gp_fqs_loop+0x2f2/0x1310
[ 190.252001][ C0] ? rcu_gp_kthread+0x380/0x380
[ 190.256860][ C0] ? lockdep_hardirqs_on_prepare+0x3fc/0x760
[ 190.262855][ C0] ? rcu_gp_init+0x14b0/0x14b0
[ 190.267620][ C0] ? rcu_gp_cleanup+0xb4c/0xca0
[ 190.272481][ C0] ? _raw_spin_unlock_irq+0x1f/0x40
[ 190.277694][ C0] ? lockdep_hardirqs_on+0x94/0x140
[ 190.282906][ C0] rcu_gp_kthread+0x95/0x380
[ 190.287502][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0
[ 190.292620][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100
[ 190.298524][ C0] ? __kthread_parkme+0x162/0x1c0
[ 190.303569][ C0] kthread+0x29d/0x330
[ 190.307647][ C0] ? rcu_report_qs_rsp+0x1a0/0x1a0
[ 190.312766][ C0] ? kthread_blkcg+0xd0/0xd0
[ 190.317371][ C0] ret_from_fork+0x1f/0x30
[ 190.321810][ C0]
[ 190.324843][ C0] rcu: Stack dump where RCU GP kthread last ran:
[ 190.331174][ C0] Sending NMI from CPU 0 to CPUs 1:
[ 190.336398][ C1] NMI backtrace for cpu 1
[ 190.336417][ C1] CPU: 1 PID: 4282 Comm: syz-executor166 Not tainted syzkaller #0
[ 190.336431][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
[ 190.336439][ C1] RIP: 0010:check_preemption_disabled+0x0/0x110
[ 190.336463][ C1] Code: c7 80 70 bc 8c 4c 89 f6 e8 bd 32 17 fa e9 6e ff ff ff 00 00 cc cc 00 00 cc cc 48 c7 c7 80 fa de 8a 48 c7 c6 c0 fa de 8a eb 00 <55> 41 57 41 56 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44
[ 190.336477][ C1] RSP: 0018:ffffc900001e0f00 EFLAGS: 00000046
[ 190.336490][ C1] RAX: 0000000000000806 RBX: ffff888030263b80 RCX: 84e533f855b6f200
[ 190.336501][ C1] RDX: 0000000000000000 RSI: ffffffff8adefac0 RDI: ffffffff8adefa80
[ 190.336510][ C1] RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1c3ee26
[ 190.336520][ C1] R10: fffffbfff1c3ee26 R11: 1ffffffff1c3ee25 R12: dffffc0000000000
[ 190.336530][ C1] R13: 0000000000000000 R14: ffff888030263b80 R15: 1ffff9200003c1e8
[ 190.336540][ C1] FS: 00007f8cc3a616c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
[ 190.336552][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 190.336562][ C1] CR2: 00007f8cc3a60e40 CR3: 000000002f864000 CR4: 00000000003506e0
[ 190.336574][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 190.336582][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 190.336591][ C1] Call Trace:
[ 190.336597][ C1]
[ 190.336601][ C1] irqtime_account_irq+0x14/0x1b0
[ 190.336625][ C1] __irq_exit_rcu+0x8d/0x220
[ 190.336646][ C1] ? irq_exit_rcu+0x20/0x20
[ 190.336670][ C1] irq_exit_rcu+0x5/0x20
[ 190.336688][ C1] sysvec_apic_timer_interrupt+0xa0/0xc0
[ 190.336706][ C1]
[ 190.336709][ C1]
[ 190.336714][ C1] asm_sysvec_apic_timer_interrupt+0x16/0x20
[ 190.336729][ C1] RIP: 0010:_raw_spin_unlock_irq+0x25/0x40
[ 190.336749][ C1] Code: f5 ff 0f 1f 00 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 8e 18 42 f7 48 89 df e8 e6 dd 42 f7 e8 61 d1 65 f7 fb bf 01 00 00 00 46 5b 36 f7 65 8b 05 67 14 e1 75 85 c0 74 02 5b c3 e8 b4 25 df
[ 190.336759][ C1] RSP: 0018:ffffc90003dd7bb8 EFLAGS: 00000286
[ 190.336770][ C1] RAX: 84e533f855b6f200 RBX: ffff88802e8c1bc0 RCX: 84e533f855b6f200
[ 190.336780][ C1] RDX: dffffc0000000000 RSI: ffffffff8a8c0300 RDI: 0000000000000001
[ 190.336790][ C1] RBP: ffff88802e8c2058 R08: dffffc0000000000 R09: ffffed1005d18379
[ 190.336800][ C1] R10: ffffed1005d18379 R11: 1ffff11005d18378 R12: 1ffff11005d1840b
[ 190.336810][ C1] R13: 0000000000000021 R14: dffffc0000000000 R15: 0000000000000000
[ 190.336826][ C1] ? _raw_spin_unlock_irq+0x1f/0x40
[ 190.336844][ C1] get_signal+0x1163/0x1350
[ 190.336872][ C1] arch_do_signal_or_restart+0xb0/0x1230
[ 190.336891][ C1] ? __ia32_sys_rt_sigreturn+0x660/0x790
[ 190.336910][ C1] ? load_gs_index+0x120/0x120
[ 190.336926][ C1] ? get_sigframe_size+0x10/0x10
[ 190.336950][ C1] ? exit_to_user_mode_loop+0x3b/0x110
[ 190.336970][ C1] exit_to_user_mode_loop+0x70/0x110
[ 190.336989][ C1] exit_to_user_mode_prepare+0xb1/0x140
[ 190.337007][ C1] syscall_exit_to_user_mode+0x16/0x40
[ 190.337025][ C1] do_syscall_64+0x58/0xa0
[ 190.337038][ C1] ? clear_bhb_loop+0x60/0xb0
[ 190.337051][ C1] ? clear_bhb_loop+0x60/0xb0
[ 190.337065][ C1] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 190.337085][ C1] RIP: 0033:0x7f8cc3aa0457
[ 190.337104][ C1] Code: 14 25 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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
[ 190.337114][ C1] RSP: 002b:00007f8cc3a61218 EFLAGS: 00000246
[ 190.337125][ C1] RAX: 00000000000000ca RBX: 00007f8cc3b2a308 RCX: 00007f8cc3aa0459
[ 190.337134][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f8cc3b2a308
[ 190.337143][ C1] RBP: 00007f8cc3b2a300 R08: 0000000000000000 R09: 0000000000000000
[ 190.337151][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000140
[ 190.337160][ C1] R13: 000020000006b000 R14: 0000200000000100 R15: 0000200000000680
[ 190.337176][ C1]