rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (2027 ticks this GP) idle=2d1c/1/0x4000000000000000 softirq=137357/137357 fqs=1104
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   506103          0            0
rcu: 	cputime:    11594       8314           26   ==> 19910(ms)
rcu: 	(t=10502 jiffies g=158513 q=512 ncpus=2)
CPU: 1 UID: 0 PID: 31074 Comm: syz.1.7291 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:xfrm_lookup_with_ifid+0x0/0x1af0
Code: f7 89 e8 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48
RSP: 0018:ffffc90000a089d8 EFLAGS: 00000246
RAX: ffffffff8a25d621 RBX: ffff8881b8cdcf10 RCX: 0000000000000000
RDX: ffffc90000a08ad0 RSI: ffff88816ea46000 RDI: ffff88816acf8000
RBP: ffffc90000a08bb0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1fe1c17 R12: ffff8881abc02338
R13: dffffc0000000000 R14: 1ffff1103719b9eb R15: ffff8881b8cdcf58
FS:  00007efd25b176c0(0000) GS:ffff8882a96a4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000016baba000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 ndisc_send_skb+0x42d/0x14e0
 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: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 93 90 03 f6 e8 ae 23 3c f6 fb bf 01 00 00 00 <e8> 23 a9 ff ff 9c 58 fa a9 00 02 00 00 74 05 e8 84 25 3c f6 bf 01
RSP: 0018:ffffc900092bfbb0 EFLAGS: 00000206
RAX: 0000000000000335 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8dcf1f4e RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff8ff0e0b7 R09: 1ffffffff1fe1c16
R10: dffffc0000000000 R11: fffffbfff1fe1c17 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 irqentry_exit+0x599/0x620
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_acquire+0x20b/0x2e0
Code: e9 30 ff ff ff e8 d5 d2 ed 09 f7 c3 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 51 50 57 11 48 3b 44 24 30 75 33 fb 48 83 c4 38 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 2e c0 53
RSP: 0018:ffffc900092bfcd8 EFLAGS: 00000286
RAX: 1c3a74c7e4fa9c00 RBX: 0000000000000246 RCX: 0000000000000046
RDX: 000000005a44979c RSI: ffffffff8df5fbe0 RDI: ffffffff8c076d00
RBP: 0000000000000000 R08: ffffffff82477cfa R09: ffffffff8e560120
R10: dffffc0000000000 R11: ffffed102dae8b01 R12: 0000000000000002
R13: ffffffff8e560120 R14: 0000000000000000 R15: 0000000000000000
 __fget_files+0x47/0x420
 fdget+0x16b/0x1e0
 __x64_sys_sendmsg+0x116/0x2a0
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efd24b9acb9
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:00007efd25b17028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007efd24e15fa0 RCX: 00007efd24b9acb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffffffffff
RBP: 00007efd24c08bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efd24e16038 R14: 00007efd24e15fa0 R15: 00007ffef411e248
 </TASK>
