clocksource: Long readout interval, skipping watchdog check: cs_nsec: 89152755538 wd_nsec: 89152757577
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10475 ticks this GP) idle=67dc/1/0x4000000000000000 softirq=17662/17668 fqs=4562
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   759841          4            0
rcu: 	cputime:    37879      14590           65   ==> 52470(ms)
rcu: 	(t=10500 jiffies g=9677 q=3624 ncpus=2)
CPU: 0 UID: 0 PID: 6590 Comm: syz.0.233 Not tainted 6.17.0-rc1-syzkaller-00022-g07866544e410 #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_pc+0x11/0x70
Code: 5b e9 73 a1 58 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 08 40 a0 92 <65> 8b 15 68 94 e0 10 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75
RSP: 0018:ffffc90000007778 EFLAGS: 00000287
RAX: ffffffff8a2ae471 RBX: 0000000000000000 RCX: ffff88801edfb980
RDX: 0000000000000002 RSI: ffffffff8d9b6dc3 RDI: ffffffff8be33300
RBP: ffffc900000078b0 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: ffff888026a0bd50
R13: ffff88811a13b800 R14: 1ffff110225aa4ff R15: ffff888028822da8
FS:  00007f0676d276c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556dbe35c8 CR3: 0000000109008000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602
Call Trace:
 <IRQ>
 ip6_finish_output2+0xb61/0x16a0
 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_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__mmdrop+0x2f9/0x580
Code: 4c 8d b3 c8 00 00 00 4d 89 f4 49 c1 ec 03 43 80 3c 2c 00 74 08 4c 89 f7 e8 f4 b8 a0 00 49 8b 3e e8 dc 75 81 00 43 80 3c 2c 00 <74> 08 4c 89 f7 e8 cd b9 a0 00 48 c7 83 c8 00 00 00 00 00 00 00 4c
RSP: 0018:ffffc900069c76e0 EFLAGS: 00000246
RAX: 32fb5da5a9da2400 RBX: ffff888111bbd600 RCX: 0000000000000000
RDX: 0000000000000006 RSI: ffffffff8d9b6dc3 RDI: 00000000ffffffff
RBP: 0000000000000202 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: 1ffff11022377ad9
R13: dffffc0000000000 R14: ffff888111bbd6c8 R15: ffff888111bbdbc8
 finish_task_switch+0x3ee/0x950
 __schedule+0x17a0/0x4cc0
 preempt_schedule_common+0x83/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 smp_call_function_single+0x470/0x590
 perf_install_in_context+0x593/0x8f0
 __se_sys_perf_event_open+0x193a/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0675f8ebe9
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:00007f0676d27038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f06761b5fa0 RCX: 00007f0675f8ebe9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000012c0
RBP: 00007f0676011e19 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f06761b6038 R14: 00007f06761b5fa0 R15: 00007ffcc72da498
 </TASK>
