rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10397 ticks this GP) idle=26fc/1/0x4000000000000000 softirq=28538/28538 fqs=5031
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1252795          2            0
rcu: 	cputime:     8531      43948           39   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=24265 q=5191 ncpus=2)
CPU: 0 UID: 0 PID: 8100 Comm: syz.6.493 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:unwind_next_frame+0x205/0x2550
Code: 6c 04 00 00 44 89 f8 4c 8d 2c 85 7c 06 75 91 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 4c 89 e3 0f 85 66 1d 00 00 45 8b 6d 00 <44> 89 f8 ff c0 4c 8d 24 85 7c 06 75 91 4c 89 e0 48 c1 e8 03 0f b6
RSP: 0018:ffffc90000006de0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000100
RDX: 00000000000ab7bd RSI: ffffffff8c2a9f60 RDI: ffffffff8c2a9f20
RBP: ffffffff8233f4fd R08: ffffffff8176f21f R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff8e959c60 R12: dffffc0000000000
R13: 000000000003dd98 R14: ffffc90000006e88 R15: 00000000000133f4
FS:  00007f21415c66c0(0000) GS:ffff88818dc24000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000016d96c000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_noprof+0x375/0x720
 cfg80211_inform_single_bss_data+0x990/0x1be0
 cfg80211_inform_bss_data+0x258/0x3c40
 cfg80211_inform_bss_frame_data+0x3c7/0x730
 ieee80211_bss_info_update+0x791/0xa50
 ieee80211_scan_rx+0x552/0xa40
 ieee80211_rx_list+0x2b1d/0x3910
 ieee80211_rx_napi+0x1ad/0x3d0
 ieee80211_handle_queued_frames+0xe4/0x1d0
 tasklet_action_common+0x2d7/0x490
 handle_softirqs+0x225/0x840
 __irq_exit_rcu+0xca/0x220
 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+0x48/0xa0
Code: 49 be 00 00 00 00 00 fc ff df eb 09 48 f7 03 10 00 00 00 74 53 bf 01 00 00 00 e8 b3 d5 de f5 e8 ae a5 19 f6 fb bf 01 00 00 00 <e8> 83 a3 ff ff 9c 58 fa a9 00 02 00 00 74 05 e8 74 a7 19 f6 bf 01
RSP: 0018:ffffc900037cfbd8 EFLAGS: 00000206
RAX: 0000000000010953 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000006 RSI: ffffffff8dfe0684 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff9032ddf7 R09: 1ffffffff2065bbe
R10: dffffc0000000000 R11: fffffbfff2065bbf R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 irqentry_exit+0x14f/0x8f0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:perf_unpin_context+0x0/0x70
Code: f1 80 e1 07 80 c1 03 38 c1 7c b6 4c 89 f7 e8 47 ea 36 00 eb ac 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <41> 56 53 48 89 fb e8 b5 30 c9 ff 48 89 df e8 2d 48 b9 09 48 8d 8b
RSP: 0018:ffffc900037cfcf8 EFLAGS: 00000246
RAX: 973e67173ea39d00 RBX: ffff88816a8ebb80 RCX: 0000000000080000
RDX: ffffc90008b29000 RSI: 0000000000001fe1 RDI: ffff888118f24c00
RBP: ffffc900037cfee0 R08: ffffffff9032ddf7 R09: 1ffffffff2065bbe
R10: dffffc0000000000 R11: fffffbfff2065bbf R12: 1ffff920006f9fb0
R13: ffff8881032b9f18 R14: 1ffff1102065742c R15: ffff888118f24c00
 __se_sys_perf_event_open+0x190e/0x1d40
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f214079ce59
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:00007f21415c6028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f2140a16090 RCX: 00007f214079ce59
RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000200000000480
RBP: 00007f2140832e6f R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2140a16128 R14: 00007f2140a16090 R15: 00007fffff1de7f8
 </TASK>
sched: DL replenish lagged too much
