rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=036c/1/0x4000000000000000 softirq=29733/29734 fqs=5057
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1011746          1            0
rcu: 	cputime:    36674      15815           45   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=25033 q=3612 ncpus=2)
CPU: 1 UID: 0 PID: 10284 Comm: syz.3.1347 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+0xb/0x23c0
Code: c1 7c 92 48 89 df e8 94 85 b9 00 eb 88 66 90 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 81 ec 98 00 00 00 49 89 fe 48 bd 00 00 00 00 00 fc ff
RSP: 0018:ffffc90000a07b40 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffc90000a07c20 RCX: 0000000000000300
RDX: dffffc0000000000 RSI: ffffffff81000130 RDI: ffffc90000a07b68
RBP: ffffc90000a07bf0 R08: ffffc90000a07c30 R09: 000000000000001c
R10: ffffc90000a07bb8 R11: ffffffff81b0c390 R12: ffff888115799d40
R13: ffff8881a232e800 R14: ffffffff81b0c390 R15: ffffc90000a07b68
FS:  00007fe54cae96c0(0000) GS:ffff8882a945a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f872bb4da08 CR3: 00000001aa1f0000 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+0x35c/0x760
 ieee802_11_parse_elems_full+0x159/0x2ab0
 ieee80211_inform_bss+0x161/0x1160
 cfg80211_inform_single_bss_data+0xd08/0x1b70
 cfg80211_inform_bss_data+0x266/0x3c40
 cfg80211_inform_bss_frame_data+0x3c7/0x760
 ieee80211_bss_info_update+0x794/0xa40
 ieee80211_scan_rx+0x552/0xa40
 ieee80211_rx_list+0x29e5/0x3710
 ieee80211_rx_napi+0x1b1/0x3e0
 ieee80211_handle_queued_frames+0xe8/0x1e0
 tasklet_action_common+0x2da/0x4b0
 handle_softirqs+0x22a/0x870
 __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: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 e3 e7 e3 f5 e8 4e 86 1d f6 fb bf 01 00 00 00 <e8> c3 a6 ff ff 9c 58 fa a9 00 02 00 00 74 05 e8 24 88 1d f6 bf 01
RSP: 0018:ffffc9000a2ff940 EFLAGS: 00000206
RAX: 00000000001324db RBX: ffff888115799d40 RCX: 0000000000000001
RDX: 0000000000000006 RSI: ffffffff8def9047 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff9011b4b7 R09: 1ffffffff2023696
R10: dffffc0000000000 R11: fffffbfff2023697 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 irqentry_exit+0x599/0x620
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:preempt_schedule+0xb/0x30
Code: 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 65 8b 05 a5 5d 6c 07 <a9> ff ff ff 7f 75 09 9c 58 a9 00 02 00 00 75 25 e9 00 b6 01 00 cc
RSP: 0018:ffffc9000a2ffa60 EFLAGS: 00000287
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000080000
RDX: ffffc90009146000 RSI: 0000000000000902 RDI: 0000000000000903
RBP: ffffc9000a2ffab0 R08: ffffffff9011b4b7 R09: 1ffffffff2023696
R10: dffffc0000000000 R11: fffffbfff2023697 R12: 0000000000000000
R13: dffffc0000000000 R14: 1ffff9200145ff5c R15: 1ffff9200145ff5c
 preempt_schedule_thunk+0x16/0x30
 smp_call_function_single+0x469/0x580
 perf_install_in_context+0x5c0/0x930
 __se_sys_perf_event_open+0x192f/0x1d60
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe54bb9c819
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:00007fe54cae9028 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007fe54be16090 RCX: 00007fe54bb9c819
RDX: ffefffffffffffff RSI: 0000000000000000 RDI: 0000200000000700
RBP: 00007fe54bc32c91 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe54be16128 R14: 00007fe54be16090 R15: 00007ffd28c0db78
 </TASK>
sched: DL replenish lagged too much
