rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10499 ticks this GP) idle=9c54/1/0x4000000000000000 softirq=41817/41817 fqs=5191
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1265056          0            0
rcu: 	cputime:     7988      44501           35   ==> 52500(ms)
rcu: 	(t=10501 jiffies g=37689 q=4537 ncpus=2)
CPU: 0 UID: 0 PID: 10657 Comm: syz.5.1213 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:unwind_next_frame+0x515/0x2550
Code: 83 e0 fe 4c 8d 3c 45 00 00 00 00 49 01 ef 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 27 49 63 07 <4c> 01 f8 49 8d 4f 04 4c 39 e0 48 0f 46 e9 49 8d 47 fc 48 0f 47 d8
RSP: 0018:ffffc90000006ed8 EFLAGS: 00000246
RAX: fffffffff1abd208 RBX: ffffffff90501180 RCX: dffffc0000000000
RDX: ffffffff90501180 RSI: ffffffff90cf4d5e RDI: ffffffff8c28b080
RBP: ffffffff90501180 R08: 0000000000000001 R09: ffffffff8e95cd60
R10: ffffc90000006ff8 R11: ffffffff81b0eb70 R12: ffffffff81fbe93f
R13: ffffffff90501180 R14: ffffc90000006fa8 R15: ffffffff90501180
FS:  00007ffb9084a6c0(0000) GS:ffff88818dc89000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3780c7 CR3: 0000000191ec2000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_stack+0x3e/0x60
 kasan_record_aux_stack+0xbd/0xd0
 call_rcu+0xee/0x890
 skb_release_head_state+0x71/0x360
 __kfree_skb+0x24/0x210
 vti6_tnl_xmit+0x1212/0x1b20
 dev_hard_start_xmit+0x2cd/0x830
 __dev_queue_xmit+0x14d9/0x3950
 ip6_output+0x340/0x550
 ndisc_send_skb+0xd0b/0x1670
 addrconf_rs_timer+0x395/0x6d0
 call_timer_fn+0x192/0x5e0
 __run_timer_base+0x652/0x8b0
 run_timer_softirq+0xb7/0x170
 handle_softirqs+0x22a/0x840
 __irq_exit_rcu+0xca/0x220
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule_irq+0x48/0xa0
Code: 49 be 00 00 00 00 00 fc ff df eb 09 48 f7 03 10 00 00 00 74 53 bf 01 00 00 00 e8 83 dc e9 f5 e8 de f2 23 f6 fb bf 01 00 00 00 <e8> 53 a2 ff ff 9c 58 fa a9 00 02 00 00 74 05 e8 a4 f4 23 f6 bf 01
RSP: 0018:ffffc90008e4f980 EFLAGS: 00000202
RAX: 0000000000001ac1 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000006 RSI: ffffffff8dfaa584 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff9030b8f7 R09: 1ffffffff206171e
R10: dffffc0000000000 R11: fffffbfff206171f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 irqentry_exit+0x14f/0x760
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:smp_call_function_single+0x3f7/0x5b0
Code: eb d9 e8 0c 1c 0c 00 bf 01 00 00 00 e8 a2 32 da ff 65 8b 1d bb ca 7f 11 31 ff 89 de e8 32 20 0c 00 85 db 74 72 e8 e9 1b 0c 00 <43> c7 44 34 04 f8 f8 f8 f8 48 c7 44 24 40 0e 36 e0 45 4b c7 04 34
RSP: 0018:ffffc90008e4faa0 EFLAGS: 00000246
RAX: ffffffff81b9a5f9 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc9002dcd9000 RSI: 00000000000009ef RDI: 00000000000009f0
RBP: ffffc90008e4fb90 R08: ffffffff9030b8f7 R09: 1ffffffff206171e
R10: dffffc0000000000 R11: fffffbfff206171f R12: 1ffff920011c9f5c
R13: 1ffff920011c9f5c R14: dffffc0000000000 R15: ffffc90008e4fb08
 perf_install_in_context+0x5c0/0x930
 __se_sys_perf_event_open+0x1902/0x1d40
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffb8f99cdd9
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:00007ffb9084a028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007ffb8fc15fa0 RCX: 00007ffb8f99cdd9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 00002000000003c0
RBP: 00007ffb8fa32d69 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffb8fc16038 R14: 00007ffb8fc15fa0 R15: 00007ffc0851cbf8
 </TASK>
sched: DL replenish lagged too much
