rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (8700 ticks this GP) idle=0154/1/0x4000000000000000 softirq=16479/16479 fqs=4737
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1249484          0            0
rcu: 	cputime:     7836      44663           38   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=12861 q=8129 ncpus=2)
CPU: 1 UID: 0 PID: 6442 Comm: syz.2.184 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:__rcu_read_unlock+0x0/0xe0
Code: d9 80 e1 07 80 c1 03 38 c1 7c dc 48 89 df e8 b7 28 88 00 eb d2 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 41 57 41 56 41 55 41 54 53 49 bf 00 00 00 00 00 fc ff
RSP: 0018:ffffc90000a08db8 EFLAGS: 00000286
RAX: d4860e2907a76300 RBX: dffffc0000000000 RCX: 0000000000000101
RDX: 0000000000000003 RSI: ffffffff8e25aa07 RDI: ffffffff8c2a9f80
RBP: ffffc90000a08e78 R08: ffffffff9032ddf7 R09: 1ffffffff2065bbe
R10: dffffc0000000000 R11: fffffbfff2065bbf R12: 0000000000000000
R13: dffffc0000000000 R14: ffffc90000a08e00 R15: ffffffff8b2b34f1
FS:  00007f0c96bd56c0(0000) GS:ffff8882a9224000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000001bcc20000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 ieee80211_rx_napi+0x24f/0x3d0
 ieee80211_handle_queued_frames+0xe4/0x1d0
 tasklet_action_common+0x2d7/0x490
 handle_softirqs+0x225/0x840
 __irq_exit_rcu+0xca/0x220
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__schedule+0x0/0x56c0
Code: d9 48 8b 5c 24 10 e9 f4 fe ff ff cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 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:ffffc90009d4f900 EFLAGS: 00000202
RAX: 0000000000004a49 RBX: ffff888117980000 RCX: 0000000000000001
RDX: 0000000000000006 RSI: ffffffff8dfe0684 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff9032ddf7 R09: 1ffffffff2065bbe
R10: dffffc0000000000 R11: fffffbfff2065bbf R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 preempt_schedule_irq+0x4d/0xa0
 irqentry_exit+0x14f/0x8f0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule_common+0x18/0xd0
Code: 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 53 49 bf 00 00 00 00 00 fc ff df eb 0d 48 f7 03 10 00 00 00 <0f> 84 99 00 00 00 65 ff 05 cb b7 8a 07 65 8b 05 c4 b7 8a 07 25 ff
RSP: 0018:ffffc90009d4fa28 EFLAGS: 00000202
RAX: 1ffff11022f30000 RBX: ffff888117980000 RCX: 0000000000000002
RDX: 0000000000000000 RSI: ffffffff8c2a9f60 RDI: ffffffff8c2a9f20
RBP: ffffc90009d4fa90 R08: ffffffff9032ddf7 R09: 1ffffffff2065bbe
R10: dffffc0000000000 R11: fffffbfff2065bbf R12: 1ffff920013a9f5c
R13: 1ffff920013a9f5c R14: ffff888117981588 R15: dffffc0000000000
 preempt_schedule_thunk+0x16/0x40
 smp_call_function_single+0x46e/0x5a0
 perf_install_in_context+0x5bd/0x900
 __se_sys_perf_event_open+0x1906/0x1d40
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0c9899ce59
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:00007f0c96bd5028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f0c98c16090 RCX: 00007f0c9899ce59
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007f0c98a32e6f R08: 0000000000000008 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0c98c16128 R14: 00007f0c98c16090 R15: 00007ffc74ef7758
 </TASK>
sched: DL replenish lagged too much
