clocksource: Long readout interval, skipping watchdog check: cs_nsec: 97989332911 wd_nsec: 97989335132
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10474 ticks this GP) idle=07ec/1/0x4000000000000000 softirq=205823/205825 fqs=4137
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   842804          4            0
rcu: 	cputime:    38762      13724           95   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=176985 q=3602 ncpus=2)
CPU: 0 UID: 0 PID: 4099 Comm: syz.8.7662 Not tainted 6.16.0-syzkaller-06600-g1dbf1d590d10-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:strlen+0x0/0x70
Code: c3 cc cc cc cc cc 89 f9 80 e1 07 38 c1 7c db e8 76 1f b7 f6 eb d4 90 0f 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 41 57 41 56 41 54 53 48 c7 c0 ff ff ff ff 49 be 00 00
RSP: 0018:ffffc90000006b38 EFLAGS: 00000286
RAX: ffffffff8b8bdb00 RBX: ffffffff8e13c4f8 RCX: 24006f134de2f400
RDX: ffffffff8172cd05 RSI: ffffffff8e13c4e0 RDI: ffffffff8b8bdb00
RBP: ffffc90000006c40 R08: ffffc90000007fe0 R09: 0000000000000000
R10: ffffc90000006dd8 R11: fffff52000000dbd R12: 1ffff92000000d70
R13: ffffffff8172cd05 R14: ffffffff8e00b6a0 R15: dffffc0000000000
FS:  00007f7cfbbf66c0(0000) GS:ffff8880b8680000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd13b8e56c0 CR3: 000000002a0a6000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 perf_trace_lock+0xc2/0x3b0
 lock_release+0x3b2/0x3e0
 unwind_next_frame+0x19a9/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_stack+0x3e/0x60
 kasan_record_aux_stack+0xbd/0xd0
 call_rcu+0x157/0x9c0
 wg_xmit+0x5c9/0xf80
 dev_hard_start_xmit+0x2d7/0x830
 __dev_queue_xmit+0x1b8d/0x3b50
 ip6_finish_output2+0x11fe/0x16a0
 ndisc_send_skb+0xb54/0x1440
 addrconf_rs_timer+0x369/0x670
 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:finish_task_switch+0x26b/0x950
Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 df 31 e1 09 e8 2a 10 36 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc90003b7f558 EFLAGS: 00000282
RAX: 24006f134de2f400 RBX: 0000000000000000 RCX: 24006f134de2f400
RDX: 0000000000000007 RSI: ffffffff8d9792dd RDI: ffffffff8be30a00
RBP: ffffc90003b7f5b0 R08: ffffffff8fa07bf7 R09: 1ffffffff1f40f7e
R10: dffffc0000000000 R11: fffffbfff1f40f7f R12: ffff888021f1d640
R13: dffffc0000000000 R14: ffff88801c6c5640 R15: ffff88804b03ab18
 __schedule+0x173f/0x4d30
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:acct_collect+0x1aa/0x770
Code: 48 c7 c6 ff ff ff ff e8 84 e0 b2 09 48 85 c0 0f 84 cd 00 00 00 49 89 c5 31 db 49 8d 7d 08 48 89 f8 48 c1 e8 03 42 80 3c 30 00 <74> 05 e8 1f dd 6d 00 4d 8b 7d 08 4c 89 e8 48 c1 e8 03 42 80 3c 30
RSP: 0018:ffffc90003b7f960 EFLAGS: 00000246
RAX: 1ffff11008348e71 RBX: 0000000002000000 RCX: ffff888021f1d640
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888041a47388
RBP: ffffc90003b7fad0 R08: ffff888021f1d640 R09: 0000000000000004
R10: 0000000000000003 R11: 0000000000000000 R12: ffffc90003b7fa00
R13: ffff888041a47380 R14: dffffc0000000000 R15: 000000110e230000
 do_exit+0x5c3/0x22e0
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7cfd98ebe9
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:00007f7cfbbf6038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: 0000000000000011 RBX: 00007f7cfdbb6090 RCX: 00007f7cfd98ebe9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000040
RBP: 00007f7cfda11e19 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7cfdbb6128 R14: 00007f7cfdbb6090 R15: 00007ffc37243148
 </TASK>
