rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (8958 ticks this GP) idle=6b24/1/0x4000000000000000 softirq=14638/14640 fqs=4351
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   925039         11            0
rcu: 	cputime:    33983      18483           53   ==> 52470(ms)
rcu: 	(t=10500 jiffies g=7397 q=5344 ncpus=2)
CPU: 1 UID: 0 PID: 6059 Comm: syz.1.44 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:deref_stack_reg+0x1c6/0x230
Code: 08 00 00 49 89 c6 48 8b 5c 24 18 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 23 bc b0 00 4c 89 33 b0 01 eb 02 31 c0 <48> 83 c4 20 5b 41 5c 41 5d 41 5e 41 5f 5d e9 47 b3 0a 0a cc 44 89
RSP: 0018:ffffc900001dfce0 EFLAGS: 00000246
RAX: 1ffff9200003bf01 RBX: ffffc900001dfe48 RCX: 0000000000000001
RDX: ffffc900001dfe48 RSI: dffffc0000000000 RDI: ffffc900001e0fe0
RBP: 1ffff9200003bfc1 R08: ffffc900001e0fe0 R09: 0000000000000000
R10: ffffc900001dfe58 R11: fffff5200003bfcd R12: 1ffff9200003bfc2
R13: 1ffff9200003bfc3 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007fa25bcee6c0(0000) GS:ffff8881a3c12000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000293f4000 CR4: 00000000000006f0
DR0: 00002000000000c0 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000030602
Call Trace:
 <IRQ>
 unwind_next_frame+0x17c4/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_noprof+0x27a/0x4f0
 cfg80211_inform_single_bss_data+0x905/0x1ac0
 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:__sanitizer_cov_trace_pc+0x46/0x70
Code: ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 3c 16 00 00 00 74 2c 8b 91 18 16 00 00 83 fa 02 75 21 48 8b 91 20 16 00 00 48 8b 32 <48> 8d 7e 01 8b 89 1c 16 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2
RSP: 0018:ffffc90006677a98 EFLAGS: 00000246
RAX: ffffffff81b44b28 RBX: ffffc90006677ae8 RCX: ffff8880290e3980
RDX: ffffc90004083000 RSI: 000000000000027e RDI: 0000000000000000
RBP: ffffc90006677b90 R08: ffffffff8fa3b237 R09: 1ffffffff1f47646
R10: dffffc0000000000 R11: fffffbfff1f47647 R12: 1ffff92000ccef5d
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000ccef58
 smp_call_function_single+0x398/0x590
 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: 0033:0x7fa25ad8ec29
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:00007fa25bcee038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fa25afd5fa0 RCX: 00007fa25ad8ec29
RDX: bfffffffffffffff RSI: 0000000000000000 RDI: 0000200000000180
RBP: 00007fa25ae11e41 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa25afd6038 R14: 00007fa25afd5fa0 R15: 00007ffc6b3a6e48
 </TASK>
sched: DL replenish lagged too much
