clocksource: Long readout interval, skipping watchdog check: cs_nsec: 80635504189 wd_nsec: 80635506034
rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10421 ticks this GP) idle=a2ec/1/0x4000000000000000 softirq=35300/35301 fqs=4900
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   778641          4            0
rcu: 	cputime:    37606      14893           65   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=26293 q=1629 ncpus=2)
CPU: 0 UID: 0 PID: 9418 Comm: syz.0.948 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:stack_trace_consume_entry+0x112/0x280
Code: 4c 89 f8 48 c1 e8 03 80 3c 10 00 74 1a 4c 89 ff 48 89 f3 49 89 d4 4c 89 c5 e8 7a 4f 77 00 49 89 e8 4c 89 e2 48 89 de 49 89 37 <41> 8b 18 41 0f b6 44 15 00 84 c0 0f 85 34 01 00 00 41 3b 1e 0f 92
RSP: 0018:ffffc90000007458 EFLAGS: 00000246
RAX: 1ffff92000000ec0 RBX: ffffc900000075e0 RCX: 45163c0dbe992a00
RDX: dffffc0000000000 RSI: ffffffff84d07f61 RDI: ffffc90000007560
RBP: 1ffff92000000eae R08: ffffc90000007570 R09: 0000000000000004
R10: dffffc0000000000 R11: ffffffff81ac3da0 R12: 0000000000000000
R13: 1ffff92000000ead R14: ffffc90000007568 R15: ffffc90000007600
FS:  00007f2295a5d6c0(0000) GS:ffff8880b8619000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557b07e5c8 CR3: 000000002128e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602
Call Trace:
 <IRQ>
 arch_stack_walk+0x110/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 fill_pool+0x100/0x570
 debug_object_assert_init+0x2b1/0x380
 __mod_timer+0x4a/0xf30
 addrconf_mod_rs_timer+0x51/0xe0
 addrconf_rs_timer+0x45e/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: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 bf 22 eb 09 e8 5a 3f 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:ffffc900071178f8 EFLAGS: 00000282
RAX: 45163c0dbe992a00 RBX: 0000000000000000 RCX: 45163c0dbe992a00
RDX: 0000000000000006 RSI: ffffffff8d9b78e7 RDI: ffffffff8be33b00
RBP: ffffc90007117950 R08: ffffffff8fa38537 R09: 1ffffffff1f470a6
R10: dffffc0000000000 R11: fffffbfff1f470a7 R12: ffff88801ee78000
R13: dffffc0000000000 R14: ffff88801c2fb980 R15: ffff88804b03ab58
 __schedule+0x17a0/0x4cc0
 preempt_schedule_irq+0xb5/0x150
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:perf_unpin_context+0x0/0x70
Code: c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 99 3f 8d 09 cc 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <41> 56 53 48 89 fb e8 55 64 d0 ff 48 89 df e8 dd ee 8c 09 48 8d 8b
RSP: 0018:ffffc90007117cf8 EFLAGS: 00000246
RAX: 45163c0dbe992a00 RBX: ffff88811ca3d800 RCX: 0000000000080000
RDX: ffffc900036b9000 RSI: 0000000000000295 RDI: ffff88811ca3d800
RBP: ffffc90007117ee0 R08: ffffffff8fa38537 R09: 1ffffffff1f470a6
R10: dffffc0000000000 R11: fffffbfff1f470a7 R12: ffff88811ca3d950
R13: ffff88803b5c1f40 R14: ffff88801ee78000 R15: 1ffff92000e22fb0
 __se_sys_perf_event_open+0x1942/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2294b8eba9
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:00007f2295a5d038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f2294dd5fa0 RCX: 00007f2294b8eba9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000100
RBP: 00007f2294c11e19 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2294dd6038 R14: 00007f2294dd5fa0 R15: 00007ffc18976e48
 </TASK>
