rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10412 ticks this GP) idle=8ac4/1/0x4000000000000000 softirq=17286/17396 fqs=4592
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1193534          1            0
rcu: 	cputime:    25520      26959           77   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=9057 q=2285 ncpus=2)
CPU: 1 UID: 0 PID: 6709 Comm: syz.1.269 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:__down_trylock_console_sem+0x146/0x1e0
Code: b0 09 1f 00 4d 85 ff 75 16 e8 a6 09 1f 00 eb 15 e8 9f 09 1f 00 e8 ca 79 cd 09 4d 85 ff 74 ea e8 90 09 1f 00 fb 45 31 ff 31 ff <44> 89 f6 e8 c2 0d 1f 00 45 85 f6 74 0d e8 78 09 1f 00 41 bf 01 00
RSP: 0018:ffffc900001e0760 EFLAGS: 00000246
RAX: ffffffff81a11f60 RBX: 0000000000000000 RCX: ffff888107f3b980
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0830 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 1ffff9200003c0f0
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007eff4f3a86c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001119ba000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 vprintk_emit+0x320/0x7a0
 _printk+0xcf/0x120
 clocksource_watchdog+0xdca/0x11c0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0x67/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 8b 1d 21 f6 e8 c6 f0 57 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90002e9f9a0 EFLAGS: 00000286
RAX: 53ddbbf4a8d84f00 RBX: 0000000000000000 RCX: 53ddbbf4a8d84f00
RDX: 0000000000000006 RSI: ffffffff8d99883e RDI: 0000000000000001
RBP: ffffc90002e9fa50 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005d3f34
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:nfqnl_rcv_dev_event+0x4/0x780
Code: 5c 41 5d 41 5e 41 5f 5d e9 d9 ba d3 01 cc cc 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 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 48 48 89 d3 49 89 f6 e8 f3
RSP: 0018:ffffc90002e9fb10 EFLAGS: 00000246
RAX: ffffffff818eb764 RBX: dffffc0000000000 RCX: ffff888107f3b980
RDX: ffffc90002e9fc80 RSI: 0000000000000011 RDI: ffffffff8f58daa0
RBP: 00000000ffffffce R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: ffffffff899db8e0 R12: ffffffff8f58daa0
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffffffff1eb1b54
 notifier_call_chain+0x1b6/0x3e0
 register_netdevice+0x121c/0x1ae0
 tun_set_iff+0x844/0xef0
 __tun_chr_ioctl+0x788/0x1df0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7eff4e58e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007eff4f3a8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007eff4e7b5fa0 RCX: 00007eff4e58e9a9
RDX: 0000200000000000 RSI: 00000000400454ca RDI: 000000000000000b
RBP: 00007eff4e610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007eff4e7b5fa0 R15: 00007fff4f96f198
 </TASK>
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6709 Comm: syz.1.269 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:native_apic_msr_eoi+0xf/0x20
Code: f8 c3 cc cc cc cc cc 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa b9 0b 08 00 00 31 c0 31 d2 0f 30 <e9> 8c 24 00 0a cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
RSP: 0018:ffffc900001e0680 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffc900001e06b8 RCX: 000000000000080b
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000000 R08: ffff888136623b0f R09: 1ffff11026cc4761
R10: dffffc0000000000 R11: ffffed1026cc4762 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007eff4f3a86c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001119ba000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 __sysvec_irq_work+0x11/0x3d0
 sysvec_irq_work+0x4f/0xc0
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:__down_trylock_console_sem+0x146/0x1e0
Code: b0 09 1f 00 4d 85 ff 75 16 e8 a6 09 1f 00 eb 15 e8 9f 09 1f 00 e8 ca 79 cd 09 4d 85 ff 74 ea e8 90 09 1f 00 fb 45 31 ff 31 ff <44> 89 f6 e8 c2 0d 1f 00 45 85 f6 74 0d e8 78 09 1f 00 41 bf 01 00
RSP: 0018:ffffc900001e0760 EFLAGS: 00000246
RAX: ffffffff81a11f60 RBX: 0000000000000000 RCX: ffff888107f3b980
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0830 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 1ffff9200003c0f0
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
 vprintk_emit+0x320/0x7a0
 _printk+0xcf/0x120
 clocksource_watchdog+0xdca/0x11c0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0x67/0x180
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 8b 1d 21 f6 e8 c6 f0 57 f6 fb bf 01 00 00 00 <e8> 1b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0018:ffffc90002e9f9a0 EFLAGS: 00000286
RAX: 53ddbbf4a8d84f00 RBX: 0000000000000000 RCX: 53ddbbf4a8d84f00
RDX: 0000000000000006 RSI: ffffffff8d99883e RDI: 0000000000000001
RBP: ffffc90002e9fa50 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff920005d3f34
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:nfqnl_rcv_dev_event+0x4/0x780
Code: 5c 41 5d 41 5e 41 5f 5d e9 d9 ba d3 01 cc cc 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 <55> 41 57 41 56 41 55 41 54 53 48 83 ec 48 48 89 d3 49 89 f6 e8 f3
RSP: 0018:ffffc90002e9fb10 EFLAGS: 00000246
RAX: ffffffff818eb764 RBX: dffffc0000000000 RCX: ffff888107f3b980
RDX: ffffc90002e9fc80 RSI: 0000000000000011 RDI: ffffffff8f58daa0
RBP: 00000000ffffffce R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: ffffffff899db8e0 R12: ffffffff8f58daa0
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffffffff1eb1b54
 notifier_call_chain+0x1b6/0x3e0
 register_netdevice+0x121c/0x1ae0
 tun_set_iff+0x844/0xef0
 __tun_chr_ioctl+0x788/0x1df0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7eff4e58e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007eff4f3a8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007eff4e7b5fa0 RCX: 00007eff4e58e9a9
RDX: 0000200000000000 RSI: 00000000400454ca RDI: 000000000000000b
RBP: 00007eff4e610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007eff4e7b5fa0 R15: 00007fff4f96f198
 </TASK>
