rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10456 ticks this GP) idle=223c/1/0x4000000000000000 softirq=14612/14613 fqs=4016
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   761267          0            0
rcu: 	cputime:    37328      15161           61   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=7477 q=3359 ncpus=2)
CPU: 1 UID: 0 PID: 5989 Comm: syz.1.23 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+0x15/0x3e0
Code: 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 30 49 89 f5 <49> 89 fe 65 48 8b 05 60 6b 03 11 48 89 44 24 28 0f 1f 44 00 00 65
RSP: 0018:ffffc900001dfb30 EFLAGS: 00000286
RAX: 0000000000000001 RBX: ffffffff90d11501 RCX: e3a0909ea92b8f00
RDX: ffffc900001dfc01 RSI: ffffffff8172d195 RDI: ffffffff8e13a160
RBP: dffffc0000000000 R08: ffffc900001e0830 R09: 0000000000000000
R10: ffffc900001dfcb8 R11: fffff5200003bf99 R12: ffffc900001e0840
R13: ffffffff8172d195 R14: ffffc900001dfc68 R15: ffffffff8172d195
FS:  00007f98f83326c0(0000) GS:ffff8881a3c11000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000105c66000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 00000000000f0602
Call Trace:
 <IRQ>
 unwind_next_frame+0x19a9/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_stack+0x3e/0x60
 kasan_record_aux_stack+0xbd/0xd0
 kvfree_call_rcu+0xbb/0x410
 cfg80211_update_known_bss+0x84b/0x13c0
 __cfg80211_bss_update+0x147/0x2120
 cfg80211_inform_single_bss_data+0xba9/0x1ac0
 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:generic_exec_single+0x48a/0x500
Code: db 75 16 e8 c8 6f 0b 00 eb 15 e8 c1 6f 0b 00 e8 3c c2 c6 09 48 85 db 74 ea e8 b2 6f 0b 00 fb 31 c0 48 c7 44 24 20 0e 36 e0 45 <4b> c7 04 2c 00 00 00 00 66 43 c7 44 2c 09 00 00 43 c6 44 2c 0b 00
RSP: 0018:ffffc900044bf9c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000080000
RDX: ffffc90004002000 RSI: 0000000000000b94 RDI: 0000000000000b95
RBP: ffffc900044bfa90 R08: ffffffff8fa3b537 R09: 1ffffffff1f476a6
R10: dffffc0000000000 R11: fffffbfff1f476a7 R12: 1ffff92000897f3c
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000897f5d
 smp_call_function_single+0x351/0x590
 perf_install_in_context+0x593/0x8f0
 __se_sys_perf_event_open+0x193a/0x1d70
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f98f758ec29
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:00007f98f8332038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f98f77d5fa0 RCX: 00007f98f758ec29
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000100
RBP: 00007f98f7611e41 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f98f77d6038 R14: 00007f98f77d5fa0 R15: 00007ffda8be5168
 </TASK>
sched: DL replenish lagged too much
