rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=2544/1/0x4000000000000000 softirq=15164/15165 fqs=4391
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   835459          0            0
rcu: 	cputime:    37257      15222           53   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=8581 q=3123 ncpus=2)
CPU: 0 UID: 0 PID: 6289 Comm: syz.2.120 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_acquire+0xb9/0x360
Code: 7c 55 06 0e 00 0f 84 fa 00 00 00 65 8b 05 2f 24 03 11 85 c0 0f 85 eb 00 00 00 65 48 8b 04 25 08 40 a0 92 83 b8 ec 0a 00 00 00 <0f> 85 d5 00 00 00 48 c7 44 24 30 00 00 00 00 9c 8f 44 24 30 4c 89
RSP: 0018:ffffc90000006c98 EFLAGS: 00000246
RAX: ffff888124475640 RBX: 0000000000000000 RCX: 6cce4f00b89e4700
RDX: 0000000000000000 RSI: ffffffff8172c1b2 RDI: 1ffffffff1c273d4
RBP: ffffffff8172c195 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc90000006e58 R11: ffffffff81ac3930 R12: 0000000000000002
R13: ffffffff8e139ea0 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f9a29e0c6c0(0000) GS:ffff8880b861c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32015ff8 CR3: 000000010ea06000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000050602
Call Trace:
 <IRQ>
 unwind_next_frame+0xc2/0x2390
 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: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 88 15 f6 e8 36 e3 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:ffffc900061478e0 EFLAGS: 00000282
RAX: 6cce4f00b89e4700 RBX: 0000000000000000 RCX: 6cce4f00b89e4700
RDX: 0000000000000006 RSI: ffffffff8d9b6a7d RDI: 0000000000000001
RBP: ffffc90006147980 R08: ffffffff8fa38037 R09: 1ffffffff1f47006
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 1ffff92000c28f1c
 irqentry_exit+0x6f/0x90
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule+0x0/0xc0
Code: 00 00 e8 93 8c 15 f6 e9 ce bc 01 00 cc 66 66 66 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 48 89 e5 41 56 53 48 83 e4 e0 48 83 ec 60 65 48 8b
RSP: 0018:ffffc90006147a40 EFLAGS: 00000287
RAX: ffffffff81b437eb RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc90020803000 RSI: 00000000000003f2 RDI: 00000000000003f3
RBP: ffffc90006147a90 R08: ffffffff8fa38037 R09: 1ffffffff1f47006
R10: dffffc0000000000 R11: fffffbfff1f47007 R12: 0000000000000000
R13: dffffc0000000000 R14: 1ffff92000c28f58 R15: 1ffff92000c28f58
 preempt_schedule_thunk+0x16/0x30
 smp_call_function_single+0x470/0x590
 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: 0033:0x7f9a28f8eba9
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:00007f9a29e0c038 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f9a291d6090 RCX: 00007f9a28f8eba9
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000100
RBP: 00007f9a29011e19 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9a291d6128 R14: 00007f9a291d6090 R15: 00007ffd330c5478
 </TASK>
sched: DL replenish lagged too much
