rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10446 ticks this GP) idle=4504/1/0x4000000000000000 softirq=19337/19338 fqs=4100
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   785154          0            0
rcu: 	cputime:    37441      15058           60   ==> 52510(ms)
rcu: 	(t=10502 jiffies g=11605 q=2874 ncpus=2)
CPU: 1 UID: 0 PID: 7032 Comm: syz.2.379 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:kfence_guarded_alloc+0x5ca/0xc70
Code: 8d 2c 33 49 83 c5 08 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ef e8 8a cb ff ff 4d 8b 65 00 <4c> 89 e6 48 83 e6 01 31 ff e8 08 67 9c ff 4c 89 e0 48 83 e0 01 0f
RSP: 0018:ffffc900001dfa40 EFLAGS: 00000246
RAX: 1ffffd40009b2961 RBX: ffffea0000000000 RCX: dffffc0000000000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001dfb50 R08: ffffffff99b225db R09: 1ffffffff33644bb
R10: dffffc0000000000 R11: fffffbfff33644bc R12: ffff88801a441dc0
R13: ffffea0004d94b08 R14: 0000000004d94b00 R15: ffff88813fef48d0
FS:  00007f07cee256c0(0000) GS:ffff8881a3c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 000000010a336000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602
Call Trace:
 <IRQ>
 __kfence_alloc+0x385/0x3b0
 __kmalloc_noprof+0x440/0x4f0
 ieee802_11_parse_elems_full+0x152/0x2ab0
 ieee80211_inform_bss+0x10c/0x10a0
 cfg80211_inform_single_bss_data+0xd05/0x1ac0
 cfg80211_inform_bss_data+0x1fb/0x3b30
 cfg80211_inform_bss_frame_data+0x3d7/0x730
 ieee80211_bss_info_update+0x746/0x9e0
 ieee80211_scan_rx+0x593/0xa20
 ieee80211_rx_list+0x201c/0x2a90
 ieee80211_rx_napi+0x1a8/0x3d0
 ieee80211_handle_queued_frames+0xe8/0x1f0
 tasklet_action_common+0x36c/0x580
 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 78 15 f6 e8 16 d3 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:ffffc90008a67ba0 EFLAGS: 00000286
RAX: a943da6219197a00 RBX: 0000000000000000 RCX: a943da6219197a00
RDX: 0000000000000006 RSI: ffffffff8d9b69f6 RDI: 0000000000000001
RBP: ffffc90008a67c40 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff9200114cf74
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__se_sys_perf_event_open+0x193a/0x1d70
Code: 00 00 00 fc ff df 0f b6 04 08 84 c0 0f 85 1a 03 00 00 48 8b 74 24 10 8b 96 0c 03 00 00 48 8b 5c 24 28 48 89 df e8 26 49 00 00 <48> 89 df e8 6e 22 ff ff 48 8b 7c 24 60 e8 a4 01 8b 09 80 7c 24 20
RSP: 0018:ffffc90008a67d00 EFLAGS: 00000246
RAX: a943da6219197a00 RBX: ffff88810e21c800 RCX: ffff88803b80d640
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90008a67ee0 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: ffff88810e21c950
R13: ffff888106e48c80 R14: ffff88803b80d640 R15: 1ffff9200114cfb0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f07cdf8ebe9
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:00007f07cee25038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f07ce1b5fa0 RCX: 00007f07cdf8ebe9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000100
RBP: 00007f07ce011e19 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f07ce1b6038 R14: 00007f07ce1b5fa0 R15: 00007ffd25cd0598
 </TASK>
sched: DL replenish lagged too much
