rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=9fc4/1/0x4000000000000000 softirq=45190/45193 fqs=5239
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1142830          0            0
rcu: 	cputime:    30087      22402           80   ==> 52490(ms)
rcu: 	(t=10501 jiffies g=36781 q=2243 ncpus=2)
CPU: 0 UID: 0 PID: 12189 Comm: syz.4.1821 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:lock_release+0x70/0x3e0
Code: e8 45 f1 08 00 84 c0 75 0d f6 05 3e f9 ef 0d 01 0f 84 ad 02 00 00 83 3d 7d 44 06 0e 00 0f 84 44 02 00 00 65 8b 05 30 13 03 11 <85> c0 0f 85 35 02 00 00 65 4c 8b 3c 25 08 40 a0 92 41 83 bf ec 0a
RSP: 0000:ffffc90000007590 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffffff90b9f001 RCX: 2cbaec398d466000
RDX: ffffc90000007701 RSI: ffffffff8be332e0 RDI: ffffffff8be332a0
RBP: dffffc0000000000 R08: ffffc90000007b48 R09: 0000000000000000
R10: ffffc90000007718 R11: fffff52000000ee5 R12: ffffc90000007b58
R13: ffffffff8172c195 R14: ffffffff8e139ea0 R15: ffffffff8172c195
FS:  00007f2a02dee6c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d523ffc CR3: 000000004617c000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000082
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_next_frame+0x19a9/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 kmalloc_reserve+0xbd/0x290
 __alloc_skb+0x142/0x2d0
 wg_packet_send_keepalive+0x65/0x2c0
 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:preempt_schedule_irq+0xb0/0x150
Code: 24 20 f6 44 24 21 02 74 0c 90 0f 0b 48 f7 03 08 00 00 00 74 64 bf 01 00 00 00 e8 fb 88 15 f6 e8 36 e3 4c f6 fb bf 01 00 00 00 <e8> 5b ab ff ff 48 c7 44 24 40 00 00 00 00 9c 8f 44 24 40 8b 44 24
RSP: 0000:ffffc90006b57dc0 EFLAGS: 00000282
RAX: 2cbaec398d466000 RBX: 0000000000000000 RCX: 2cbaec398d466000
RDX: 0000000000000000 RSI: ffffffff8d9b6ac3 RDI: 0000000000000001
RBP: ffffc90006b57e70 R08: ffffffff8fa38037 R09: 1ffffffff1f47006
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000d6afb8
 irqentry_exit+0x6f/0x90
 asm_sysvec_irq_work+0x1a/0x20
RIP: 0010:its_return_thunk+0x0/0x10
Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc <c3> cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 e9 ab 42 b7 f5 cc
RSP: 0000:ffffc90006b57f30 EFLAGS: 00000286
RAX: 2cbaec398d466000 RBX: ffffc90006b57f58 RCX: 2cbaec398d466000
RDX: 0000000000000000 RSI: ffffffff8d9b6ac3 RDI: ffffffff8be33300
RBP: 0000000000000000 R08: ffffffff8fa38037 R09: 1ffffffff1f47006
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: 0000000000000000
R13: 0000000000000000 R14: ffff888029310000 R15: 0000000000000008
 irqentry_exit_to_user_mode+0x51/0x120
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0033:0x7f2a04b8ebe9
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:00007f2a02dee038 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007f2a04dc5fa0 RCX: 00007f2a04b8ebe9
RDX: 00002000000006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f2a04c11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2a04dc6038 R14: 00007f2a04dc5fa0 R15: 00007ffff8b42d58
 </TASK>
sched: DL replenish lagged too much
