rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10492 ticks this GP) idle=9ec4/1/0x4000000000000000 softirq=96175/96175 fqs=5179
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1027715          0            0
rcu: 	cputime:    32109      20380           46   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=80297 q=38093 ncpus=2)
CPU: 1 UID: 0 PID: 21107 Comm: syz.3.3613 Not tainted syzkaller #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:__sanitizer_cov_trace_switch+0x7/0x130
Code: 20 e9 8d 25 eb 09 cc 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 06 <48> 8b 4e 08 48 83 c1 f8 48 c1 c1 3d 48 83 f9 02 7f 1e 48 85 c9 74
RSP: 0018:ffffc90000a08880 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff8881ab84ca82 RCX: ffff8881bab63a80
RDX: 0000000000000100 RSI: ffffffff8fc16800 RDI: 00000000000086dd
RBP: 0000000000000038 R08: 0000000000000000 R09: 0000000000000038
R10: dffffc0000000000 R11: ffffffff899d7ca0 R12: 0000000000000000
R13: ffff8881962a2370 R14: ffff88811724a000 R15: 00000000000086dd
FS:  00007f386fdc86c0(0000) GS:ffff8882a9463000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3121aff8 CR3: 000000011786c000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 eth_header+0x46/0x200
 neigh_resolve_output+0x4de/0x750
 ip6_output+0x340/0x550
 ndisc_send_skb+0xd0b/0x1670
 addrconf_rs_timer+0x395/0x6d0
 call_timer_fn+0x192/0x640
 __run_timer_base+0x652/0x8b0
 run_timer_softirq+0xb7/0x170
 handle_softirqs+0x22a/0x870
 __irq_exit_rcu+0x5f/0x150
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:finish_task_switch+0x245/0x920
Code: 00 00 48 85 db 0f 85 e8 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 49 83 c4 48 4c 89 e7 e8 85 89 1b 0a e8 b0 8e 38 00 fb 4c 8b 65 c0 <49> 8d bc 24 70 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc90004697b38 EFLAGS: 00000206
RAX: 0000000000002f27 RBX: 0000000000000000 RCX: 0000000080000001
RDX: 0000000000000000 RSI: ffffffff8def4b84 RDI: ffffffff8c27b400
RBP: ffffc90004697b90 R08: ffffffff90118bb7 R09: 1ffffffff2023176
R10: dffffc0000000000 R11: fffffbfff2023177 R12: ffff8881bab63a80
R13: dffffc0000000000 R14: ffff88816dc71d40 R15: ffff88823c63b918
 __schedule+0x15e5/0x52d0
 preempt_schedule_irq+0x4d/0xa0
 irqentry_exit+0x599/0x620
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__se_sys_perf_event_open+0x1b3/0x1d60
Code: 34 10 00 00 00 00 4b c7 44 34 18 00 00 00 00 65 48 8b 0d a0 7c 22 11 48 3b 8c 24 80 01 00 00 0f 85 11 0f 00 00 48 8d 65 d8 5b <41> 5c 41 5d 41 5e 41 5f 5d e9 ff 74 b7 09 cc 4c 8b ac 24 c8 00 00
RSP: 0018:ffffc90004697ec0 EFLAGS: 00000246
RAX: 0000000000000008 RBX: ffffc90004697ef0 RCX: 5b06f9e34543e800
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9a2c9ac0
RBP: ffffc90004697ee0 R08: ffffffff824b5eb4 R09: ffffffff8e75e4a0
R10: dffffc0000000000 R11: fffff520008d2f91 R12: 1ffff920008d2fb0
R13: ffff888176050960 R14: dffffc0000000000 R15: ffffffff9a2caabf
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f386ef9c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f386fdc8028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f386f215fa0 RCX: 00007f386ef9c799
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0
RBP: 00007f386f032c99 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f386f216038 R14: 00007f386f215fa0 R15: 00007ffcfa5752e8
 </TASK>
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 104796166949 wd_nsec: 104796169309
