rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10499 ticks this GP) idle=3fec/1/0x4000000000000000 softirq=20951/20951 fqs=4773
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1141997          0            0
rcu: 	cputime:    30454      22035           82   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=13853 q=3114 ncpus=2)
CPU: 1 UID: 0 PID: 7309 Comm: syz.2.415 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:__irq_work_queue_local+0x203/0x550
Code: e8 72 5c f1 ff 48 c7 44 24 20 0e 36 e0 45 48 8b 44 24 18 48 c7 04 18 00 00 00 00 65 48 8b 05 14 7b d2 10 48 3b 44 24 60 75 59 <48> 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 44 89
RSP: 0018:ffffc900001e0560 EFLAGS: 00000246
RAX: 077cd8479243fd00 RBX: dffffc0000000000 RCX: 000000000000083f
RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
RBP: ffffc900001e0620 R08: ffffc900001e05a7 R09: 1ffff9200003c0b4
R10: dffffc0000000000 R11: fffff5200003c0b5 R12: ffffffff8e258a01
R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881366314b0
FS:  00007fedef4a16c0(0000) GS:ffff8881a3c12000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c38215c CR3: 000000011f78a000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 irq_work_queue+0x99/0x140
 __kfence_alloc+0x27b/0x3b0
 kmem_cache_alloc_node_noprof+0x315/0x3c0
 kmalloc_reserve+0xbd/0x290
 __alloc_skb+0x142/0x2d0
 ndisc_alloc_skb+0x9f/0x480
 ndisc_send_rs+0x2b5/0x630
 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:x64_sys_call+0x449/0x2200
Code: 00 83 fe 71 0f 8f 23 0d 00 00 83 fe 6f 0f 8f d9 1b 00 00 83 fe 6e 0f 84 45 84 55 00 83 fe 6f 0f 84 ac 98 55 00 e9 75 1d 00 00 <81> fe be 00 00 00 0f 8e 5b 03 00 00 81 fe c5 00 00 00 0f 8e c8 09
RSP: 0018:ffffc90007847ee8 EFLAGS: 00000293
RAX: 077cd8479243fd00 RBX: ffffc90007847ef0 RCX: 077cd8479243fd00
RDX: 0000000000000000 RSI: 00000000000000ca RDI: ffffc90007847f58
RBP: ffffc90007847f48 R08: ffffffff8fa3b437 R09: 1ffffffff1f47686
R10: dffffc0000000000 R11: fffffbfff1f47687 R12: 00000000000000ca
R13: 00000000000000ca R14: ffffc90007847f58 R15: ffff888024201cc0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fedee58ec29
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:00007fedef4a10e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fedee7d5fa8 RCX: 00007fedee58ec29
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fedee7d5fac
RBP: 00007fedee7d5fa0 R08: 7fffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fedee7d6038 R14: 00007ffe59b54a80 R15: 00007ffe59b54b68
 </TASK>
sched: DL replenish lagged too much
