rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10476 ticks this GP) idle=689c/1/0x4000000000000000 softirq=18659/18660 fqs=4510
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1009273          0            0
rcu: 	cputime:    37230      15175           47   ==> 52410(ms)
rcu: 	(t=10500 jiffies g=9429 q=10211 ncpus=2)
CPU: 0 UID: 0 PID: 6381 Comm: syz.3.79 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:cfg80211_inform_bss_data+0x38b/0x3bb0
Code: 04 3c 48 89 04 24 4c 89 e3 4d 89 fc 48 89 5c 24 30 4c 8d 6b 01 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 <84> c0 75 70 45 0f b6 75 00 4d 8d 6e 02 4c 89 e7 4c 89 ee e8 8d 01
RSP: 0018:ffffc90000007540 EFLAGS: 00000a03
RAX: 0000000000000000 RBX: ffff8881b7b11574 RCX: dffffc0000000000
RDX: 0000000000000100 RSI: 0000000000000028 RDI: 0000000000000000
RBP: ffffc900000078f8 R08: ffffc900000077e7 R09: 0000000000000003
R10: ffffc900000077e3 R11: fffff52000000efd R12: 0000000000000028
R13: ffff8881b7b11575 R14: 0000000000000028 R15: 0000000000000028
FS:  00007f799e9e96c0(0000) GS:ffff88818e328000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001c40 CR3: 00000001202e6000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 cfg80211_inform_bss_frame_data+0x3c7/0x710
 ieee80211_bss_info_update+0x794/0xa40
 ieee80211_scan_rx+0x593/0xa20
 ieee80211_rx_list+0x2508/0x3050
 ieee80211_rx_napi+0x1b1/0x3e0
 ieee80211_handle_queued_frames+0xe8/0x1e0
 tasklet_action_common+0x2da/0x4b0
 handle_softirqs+0x22a/0x7c0
 __irq_exit_rcu+0x5f/0x150
 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+0x57/0x70
Code: 00 74 2c 8b 91 48 16 00 00 83 fa 02 75 21 48 8b 91 50 16 00 00 48 8b 32 48 8d 7e 01 8b 89 4c 16 00 00 48 39 cf 73 08 48 89 3a <48> 89 44 f2 08 e9 cf 17 b9 09 cc 66 66 66 66 66 2e 0f 1f 84 00 00
RSP: 0018:ffffc90004b37ce8 EFLAGS: 00000287
RAX: ffffffff824291d3 RBX: ffff8881b45eb780 RCX: 0000000000080000
RDX: ffffc900308d7000 RSI: 0000000000000295 RDI: 0000000000000296
RBP: ffffc90004b37e30 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52000966f98 R12: ffff8881b45eb838
R13: dffffc0000000000 R14: ffff888120d6c2c0 R15: ffff888120d6c340
 __d_instantiate+0x23/0x6e0
 d_instantiate+0x80/0xc0
 alloc_file_pseudo+0x107/0x240
 sock_alloc_file+0xb8/0x2e0
 __sys_socket+0x13c/0x1b0
 __x64_sys_socket+0x7a/0x90
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f799db9acb9
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:00007f799e9e9028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f799de15fa0 RCX: 00007f799db9acb9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000000000000002a
RBP: 00007f799dc08bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f799de16038 R14: 00007f799de15fa0 R15: 00007ffdd8eb6128
 </TASK>
sched: DL replenish lagged too much
