clocksource: Long readout interval, skipping watchdog check: cs_nsec: 22744479766 wd_nsec: 22744478069
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (8194 ticks this GP) idle=87bc/1/0x4000000000000000 softirq=14983/17405 fqs=5244
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1103556       3775            0
rcu: 	cputime:    24392      28074          110   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=7557 q=1381 ncpus=2)
CPU: 0 UID: 0 PID: 5965 Comm: syz.1.22 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:note_gp_changes+0x25f/0x300
Code: 1f 00 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 f6 44 24 41 02 75 4f 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 20 0e 36 e0 45 <4a> c7 04 2b 00 00 00 00 66 42 c7 44 2b 09 00 00 42 c6 44 2b 0b 00
RSP: 0018:ffffc90000007b00 EFLAGS: 00000206
RAX: d06f23f982918000 RBX: 1ffff92000000f64 RCX: d06f23f982918000
RDX: 0000000000000002 RSI: ffffffff8d998836 RDI: ffffffff8be29f40
RBP: ffffc90000007bd0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff88804b03afd4
R13: dffffc0000000000 R14: 0000000000000a02 R15: ffff88804b03afc0
FS:  00007f03cd2156c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000113e6c000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 rcu_core+0x29d/0x1710
 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:ffffc90003b8f680 EFLAGS: 00000282
RAX: d06f23f982918000 RBX: 0000000000000000 RCX: d06f23f982918000
RDX: 0000000000000006 RSI: ffffffff8d998836 RDI: 0000000000000001
RBP: ffffc90003b8f730 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000771ed0
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:kernfs_add_one+0xeb/0x520
Code: 50 00 00 31 ff 89 de e8 83 0f 63 ff 85 db 74 35 e8 da 0b 63 ff bd fe ff ff ff eb 0a e8 ce 0b 63 ff bd ea ff ff ff 48 8b 3c 24 <e8> 20 b4 40 ff 89 e8 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d e9
RSP: 0018:ffffc90003b8f7f0 EFLAGS: 00000246
RAX: ffffffff825d2035 RBX: 0000000000000001 RCX: ffff888108b3d640
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88801b2f7918
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff825cf74c
R10: dffffc0000000000 R11: ffffed10043aa969 R12: ffff88801b2f7918
R13: dffffc0000000000 R14: ffff888021d54b40 R15: ffff888021d54b40
 kernfs_create_dir_ns+0xde/0x130
 sysfs_create_dir_ns+0x123/0x280
 kobject_add_internal+0x59f/0xb40
 kobject_init_and_add+0x125/0x190
 net_rx_queue_update_kobjects+0x221/0x720
 netdev_register_kobject+0x1fd/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: 0033:0x7f03cc38e9a9
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:00007f03cd215038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f03cc5b5fa0 RCX: 00007f03cc38e9a9
RDX: 00002000000000c0 RSI: 00000000400454ca RDI: 0000000000000008
RBP: 00007f03cc410d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f03cc5b5fa0 R15: 00007ffcb44fb988
 </TASK>
sched: DL replenish lagged too much
