rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10498 ticks this GP) idle=0424/1/0x4000000000000000 softirq=16633/16633 fqs=5043
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1252122          0            0
rcu: 	cputime:    31639      20840           77   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=9961 q=2951 ncpus=2)
CPU: 0 UID: 0 PID: 6405 Comm: syz.2.152 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_depot_save_flags+0x163/0x860
Code: c8 31 c5 c1 c0 18 29 c5 48 8b 05 38 81 df 14 8b 0d 2a 81 df 14 21 e9 48 c1 e1 04 4c 8d 24 08 65 ff 05 c1 99 a1 0d 4c 8b 3c 08 <4d> 39 e7 44 89 2c 24 74 05 45 89 d5 eb 34 45 31 ff e9 85 00 00 00
RSP: 0018:ffffc900000077b8 EFLAGS: 00000202
RAX: ffff888135400000 RBX: 0000000000000801 RCX: 0000000000aea7c0
RDX: 00000000ecc365d2 RSI: 0000000000000001 RDI: 000000007dae32c7
RBP: 000000009a5aea7c R08: 00000000ce91f6aa R09: 00000000798c45ce
R10: 000000000000000e R11: ffffffff81ac3930 R12: ffff888135eea7c0
R13: 0000000000000820 R14: ffffc90000007820 R15: ffff888028191f70
FS:  00007f941e9806c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f40c86e56c0 CR3: 0000000026092000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 kasan_save_track+0x4f/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x1bb/0x3c0
 __alloc_skb+0x112/0x2d0
 wg_packet_send_keepalive+0x65/0x2c0
 wg_expired_send_keepalive+0x2e/0xe0
 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 98 15 f6 e8 36 f3 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: 0018:ffffc900048fece0 EFLAGS: 00000282
RAX: 78d8047fa5400300 RBX: 0000000000000000 RCX: 78d8047fa5400300
RDX: 0000000000000006 RSI: ffffffff8d9b6a0a RDI: 0000000000000001
RBP: ffffc900048fed90 R08: ffffffff8fa38037 R09: 1ffffffff1f47006
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200091fd9c
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:rcu_is_watching+0x67/0xb0
Code: 89 f7 e8 7c c2 7c 00 48 c7 c3 98 6f a1 92 49 03 1e 48 89 d8 48 c1 e8 03 42 0f b6 04 38 84 c0 75 34 8b 03 65 ff 0d a9 e1 f9 10 <74> 11 83 e0 04 c1 e8 02 5b 41 5e 41 5f e9 47 bd d5 09 cc e8 91 68
RSP: 0018:ffffc900048fee58 EFLAGS: 00000286
RAX: 0000000000030424 RBX: ffff88804b032f98 RCX: 78d8047fa5400300
RDX: ffffffff902a7e00 RSI: ffffffff8be332e0 RDI: ffffffff8be332a0
RBP: dffffc0000000000 R08: 0000000000000022 R09: ffffffff8172c195
R10: ffffc900048fef98 R11: ffffffff81ac3930 R12: 00007f941e980038
R13: ffffc900048f8000 R14: ffffffff8dbded10 R15: dffffc0000000000
 unwind_next_frame+0x1965/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_cache_noprof+0x230/0x3d0
 __set_page_owner+0x25c/0x4a0
 post_alloc_hook+0x240/0x2a0
 get_page_from_freelist+0x21e4/0x22c0
 __alloc_frozen_pages_noprof+0x181/0x370
 alloc_pages_mpol+0x232/0x4a0
 alloc_pages_noprof+0xa9/0x190
 skb_page_frag_refill+0x179/0x320
 sk_page_frag_refill+0x4c/0xf0
 kcm_sendmsg+0x6ff/0x2ad0
 __sock_sendmsg+0x21c/0x270
 sock_write_iter+0x258/0x330
 vfs_write+0x5c9/0xb30
 ksys_write+0x145/0x250
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f941db8ebe9
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:00007f941e980038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f941ddb5fa0 RCX: 00007f941db8ebe9
RDX: 00000000fffffdef RSI: 0000200000000140 RDI: 0000000000000004
RBP: 00007f941dc11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f941ddb6038 R14: 00007f941ddb5fa0 R15: 00007ffd2ef6ec48
 </TASK>
sched: DL replenish lagged too much
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 105162251704 wd_nsec: 105162252224
