rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10246 ticks this GP) idle=cd84/1/0x4000000000000000 softirq=25966/25966 fqs=5240
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1055158          0            0
rcu: 	cputime:    25141      27348           88   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=21977 q=2474 ncpus=2)
CPU: 1 UID: 0 PID: 8866 Comm: syz.0.961 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e #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:aoenet_xmit+0x5c/0x1a0
Code: 48 89 df e8 16 81 06 fb 4c 8b 3b 49 39 df 0f 84 33 01 00 00 48 8d 4b 10 48 89 0c 24 48 c1 e9 03 48 89 4c 24 08 48 89 5c 24 10 <4c> 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 de 80 06 fb
RSP: 0018:ffffc900001e0a30 EFLAGS: 00000246
RAX: ffffffff871ccc2a RBX: ffffc900001e0ac0 RCX: ffff888123e30000
RDX: 0000000000000100 RSI: ffffffff8d998836 RDI: 00000000ffffffff
RBP: dffffc0000000000 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000a02
R13: dffffc0000000000 R14: ffff888107c1d200 R15: ffff888107c1d200
FS:  00007efe093c46c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000018c0 CR3: 0000000035f8e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 aoecmd_cfg+0x765/0x7c0
 call_timer_fn+0x17e/0x5f0
 __run_timer_base+0x61a/0x860
 run_timer_softirq+0xb7/0x180
 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 2d 21 f6 e8 c6 00 58 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:ffffc900028df0c0 EFLAGS: 00000282
RAX: be9ab811ece9d900 RBX: 0000000000000000 RCX: be9ab811ece9d900
RDX: 0000000000000006 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc900028df160 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200051be18
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:arch_stack_walk+0xaf/0x150
Code: 00 00 48 c7 45 b8 00 00 00 00 48 c7 45 b0 00 00 00 00 48 c7 45 a8 00 00 00 00 48 c7 45 a0 00 00 00 00 48 c7 45 98 00 00 00 00 <48> c7 45 90 00 00 00 00 48 c7 45 88 00 00 00 00 48 c7 45 80 00 00
RSP: 0018:ffffc900028df228 EFLAGS: 00000246
RAX: ffff888123e30000 RBX: ffffc900028df2e0 RCX: ffffc900028df2b0
RDX: ffff888123e30000 RSI: ffffc900028df2e0 RDI: ffffffff81ad0050
RBP: ffffc900028df2b0 R08: 0000000000000006 R09: 0000000000000000
R10: ffffc900028df360 R11: fffffbfff1f43d1f R12: ffff888123e30000
R13: ffff88810e34ce10 R14: ffffffff81ad0050 R15: 0000000000000000
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 __kernfs_new_node+0xd7/0x7e0
 kernfs_new_node+0x102/0x210
 __kernfs_create_file+0x4b/0x2e0
 sysfs_add_file_mode_ns+0x238/0x300
 internal_create_group+0x66d/0x1110
 sysfs_create_groups+0x59/0x120
 device_add_attrs+0xe0/0x5a0
 device_add+0x496/0xb50
 netdev_register_kobject+0x156/0x2f0
 register_netdevice+0x126c/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: 0033:0x7efe0858e9a9
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:00007efe093c4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007efe087b5fa0 RCX: 00007efe0858e9a9
RDX: 00002000000000c0 RSI: 00000000400454ca RDI: 000000000000000a
RBP: 00007efe08610d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007efe087b5fa0 R15: 00007ffc7827ed28
 </TASK>
sched: DL replenish lagged too much
