rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10460 ticks this GP) idle=6324/1/0x4000000000000000 softirq=20220/20222 fqs=5163
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1272598        173            0
rcu: 	cputime:    35079      17409           35   ==> 52490(ms)
rcu: 	(t=10502 jiffies g=15653 q=4105 ncpus=2)
CPU: 1 UID: 0 PID: 7537 Comm: syz.2.463 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:__sanitizer_cov_trace_const_cmp8+0x27/0x90
Code: 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0d 18 ff 33 11 65 8b 15 39 ff 33 11 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 57 <83> b9 54 16 00 00 00 74 4e 8b 91 30 16 00 00 83 fa 03 75 43 48 8b
RSP: 0018:ffffc90000a08518 EFLAGS: 00000246
RAX: ffffffff8133acad RBX: 00007efde999a000 RCX: ffff888169b40000
RDX: 0000000000000100 RSI: 00007efde999a000 RDI: ffffffffff600000
RBP: 0000000000000001 R08: 0000000000000022 R09: ffffffff8e560120
R10: ffffc90000a085d8 R11: ffffffff81af6830 R12: ffff888169b40000
R13: 00000000000002c0 R14: dffffc0000000000 R15: 1ffff920001410ba
FS:  00007efde7bf66c0(0000) GS:ffff8882a96a4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000022000 CR3: 00000001177be000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 in_gate_area_no_mm+0x3d/0x60
 kernel_text_address+0x2d/0xe0
 __kernel_text_address+0xd/0x30
 unwind_get_return_address+0x4d/0x90
 arch_stack_walk+0xfb/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_node_noprof+0x384/0x690
 __alloc_skb+0x27d/0x7d0
 skb_copy+0x188/0x800
 mac80211_hwsim_tx_frame_no_nl+0xd00/0x11f0
 mac80211_hwsim_tx_frame+0x1b5/0x200
 mac80211_hwsim_beacon_tx+0x3e8/0x870
 __iterate_interfaces+0x2ab/0x590
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180
 mac80211_hwsim_beacon+0xbb/0x180
 __hrtimer_run_queues+0x53a/0xcc0
 hrtimer_run_softirq+0x187/0x2b0
 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:stack_trace_consume_entry+0x5/0x280
Code: e9 90 bc e1 09 cc e8 4a d9 de 09 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <41> 57 41 56 41 55 41 54 53 48 83 ec 18 48 ba 00 00 00 00 00 fc ff
RSP: 0018:ffffc90003a56c18 EFLAGS: 00000282
RAX: ffffffff822c135e RBX: ffffc90003a56ce0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff822c135e RDI: ffffc90003a56ce0
RBP: ffffc90003a56cb0 R08: ffffffff8ff0e0b7 R09: 1ffffffff1fe1c16
R10: dffffc0000000000 R11: ffffffff81af6830 R12: ffff888169b40000
R13: ffff888169b41d00 R14: ffffffff81af6830 R15: ffffc90003a56c28
 arch_stack_walk+0x10f/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_stack+0x3e/0x60
 kasan_record_aux_stack+0xbd/0xd0
 call_rcu+0xee/0x890
 __schedule+0x1546/0x5070
 preempt_schedule_irq+0x4d/0xa0
 irqentry_exit+0x599/0x620
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:do_user_addr_fault+0x1ad/0x1340
Code: 1b 48 89 de 48 81 e6 00 02 00 00 31 ff e8 0b f7 4c 00 48 81 e3 00 02 00 00 0f 84 4a 0e 00 00 e8 f9 cb 54 00 fb 4c 89 7c 24 38 <e9> dc 10 00 00 e8 09 f2 4c 00 44 89 f6 83 e6 40 31 ff 48 89 74 24
RSP: 0018:ffffc90003a57368 EFLAGS: 00000202
RAX: 000000000000278f RBX: 0000000000000200 RCX: 0000000000000046
RDX: 0000000000000006 RSI: ffffffff8dcf1f4e RDI: ffffffff8c076d00
RBP: dffffc0000000000 R08: ffffffff8ff0e0b7 R09: 1ffffffff1fe1c16
R10: dffffc0000000000 R11: fffffbfff1fe1c17 R12: ffffc90003a57448
R13: 0000200000022000 R14: 0000000000000000 R15: ffff888169b40000
 exc_page_fault+0x6a/0xc0
 asm_exc_page_fault+0x26/0x30
RIP: 0010:rep_movs_alternative+0x75/0x90
Code: 05 e9 ff 42 04 00 48 8b 06 48 89 07 48 8d 47 08 48 83 e0 f8 48 29 f8 48 01 c7 48 01 c6 48 29 c1 48 89 c8 48 c1 e9 03 83 e0 07 <f3> 48 a5 89 c1 85 c9 75 91 e9 cd 42 04 00 48 8d 0c c8 eb 86 cc cc
RSP: 0018:ffffc90003a574f8 EFLAGS: 00010206
RAX: 0000000000000005 RBX: ffff8881b8218000 RCX: 0000000000000c0f
RDX: 0000000000000001 RSI: 0000200000021ffc RDI: ffff8881b8219f68
RBP: ffffc90003a57650 R08: ffff8881b821ffe4 R09: 1ffff11037043ffc
R10: dffffc0000000000 R11: ffffed1037043ffd R12: ffffc90003a57df8
R13: 0000200000020094 R14: 0000000000007fe5 R15: 1ffff9200074afbf
 _copy_from_iter+0x21b/0x1670
 tcp_sendmsg_locked+0x2151/0x5490
 tcp_sendmsg+0x2f/0x50
 sock_sendmsg_nosec+0x128/0x1d0
 ____sys_sendmsg+0x589/0x8c0
 ___sys_sendmsg+0x2a5/0x360
 __x64_sys_sendmsg+0x1bd/0x2a0
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efde999acb9
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:00007efde7bf6028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007efde9c15fa0 RCX: 00007efde999acb9
RDX: 0000000004000081 RSI: 0000200000000000 RDI: 0000000000000005
RBP: 00007efde9a08bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efde9c16038 R14: 00007efde9c15fa0 R15: 00007ffcde0660f8
 </TASK>
sched: DL replenish lagged too much
