rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10379 ticks this GP) idle=b08c/1/0x4000000000000000 softirq=17006/17006 fqs=4930
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1307225          1            0
rcu: 	cputime:    30571      21918           74   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=8701 q=4139 ncpus=2)
CPU: 0 UID: 0 PID: 6157 Comm: syz.1.82 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:stack_trace_consume_entry+0x5/0x280
Code: f0 5b 41 5e 5d c3 cc cc cc cc cc e8 c5 c5 ce 09 0f 1f 44 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 18 48 ba 00 00 00 00 00 fc ff
RSP: 0018:ffffc90000006df8 EFLAGS: 00000282
RAX: ffffffff81850326 RBX: ffffc90000006ec0 RCX: f3b058fd50ba3200
RDX: 0000000000000001 RSI: ffffffff81850326 RDI: ffffc90000006ec0
RBP: ffffc90000006e90 R08: ffffc90000007e30 R09: 0000000000000000
R10: ffffc90000006e58 R11: ffffffff81ac5140 R12: ffff888107749cc0
R13: ffff888026685180 R14: ffffffff81ac5140 R15: ffffc90000006e08
FS:  00007f300d3cd6c0(0000) GS:ffff8880b8611000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb8d63056c0 CR3: 000000002755c000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 arch_stack_walk+0x110/0x150
 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:lock_release+0x2b5/0x3e0
Code: 51 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f7 44 24 20 00 02 00 00 75 56 f7 c3 00 02 00 00 74 01 fb 65 48 8b 05 cb 68 03 11 <48> 3b 44 24 28 0f 85 8b 00 00 00 48 83 c4 30 5b 41 5c 41 5d 41 5e
RSP: 0018:ffffc900068cfb00 EFLAGS: 00000206
RAX: f3b058fd50ba3200 RBX: 0000000000000206 RCX: f3b058fd50ba3200
RDX: 0000000000000001 RSI: ffffffff8dbaa5f1 RDI: ffffffff8be34500
RBP: ffff88810774a7d8 R08: ffffc900068cf797 R09: 0000000000000000
R10: ffffc900068cf788 R11: fffff52000d19ef3 R12: 0000000000000001
R13: 0000000000000001 R14: ffff88801c73ec18 R15: ffff888107749cc0
 _raw_spin_unlock+0x16/0x50
 fasync_insert_entry+0x1df/0x270
 fasync_helper+0x52/0xb0
 perf_fasync+0xc3/0x110
 do_vfs_ioctl+0x1064/0x1430
 __se_sys_ioctl+0x82/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f300c58ec29
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:00007f300d3cd038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f300c7d5fa0 RCX: 00007f300c58ec29
RDX: 00002000000006c0 RSI: 0000000000005452 RDI: 0000000000000003
RBP: 00007f300c611e41 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f300c7d6038 R14: 00007f300c7d5fa0 R15: 00007fff061481c8
 </TASK>
sched: DL replenish lagged too much
