rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (10488 ticks this GP) idle=b204/1/0x4000000000000000 softirq=31501/31502 fqs=4902
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1273922          0            0
rcu: 	cputime:    35447      17042           36   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=29153 q=5045 ncpus=2)
CPU: 0 UID: 0 PID: 10616 Comm: syz.1.1436 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+0x214/0x23c0
Code: ef 08 8b 15 1e 9d a4 0c 8d 42 ff 44 39 f8 0f 86 78 04 00 00 44 89 f8 4c 8d 2c 85 44 c4 52 91 4c 89 e8 48 c1 e8 03 0f b6 04 28 <84> c0 48 89 eb 0f 85 25 1c 00 00 45 8b 6d 00 44 89 f8 ff c0 48 8d
RSP: 0000:ffffc90000006a98 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000300
RDX: 00000000000ab29c RSI: ffffffff8c27c7e0 RDI: ffffffff8c27c7a0
RBP: dffffc0000000000 R08: ffffffff81767e95 R09: ffffffff8e75e5e0
R10: ffffc90000006bb8 R11: ffffffff81b0c390 R12: ffffffff81881779
R13: ffffffff9154e4a0 R14: ffffc90000006b68 R15: 0000000000008817
FS:  00007fda0de3a6c0(0000) GS:ffff88818de5c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2fb1bff8 CR3: 00000001bd3ac000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000200000000300 DR2: 0000200000000300
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: 0000:ffffc900069dfdc0 EFLAGS: 00000206
RAX: 00000000000023f5 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8def8ec0 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff9011b3b7 R09: 1ffffffff2023676
R10: dffffc0000000000 R11: fffffbfff2023677 R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 irqentry_exit+0x599/0x620
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:irqentry_exit+0x14e/0x620
Code: 00 00 c0 4c 8d a0 00 e0 ff 3f bd ff ff ff 9f 4c 8d 7c 24 18 f7 c7 37 03 00 00 74 64 49 89 fd e8 f8 af 1e f6 4c 89 e8 fb a8 30 <74> 08 e8 4b 23 01 00 4c 89 e8 a9 00 01 00 00 74 0b 4c 89 f7 e8 a9
RSP: 0000:ffffc900069dfee8 EFLAGS: 00000202
RAX: 0000000000000010 RBX: ffff888114268000 RCX: 0000000000000046
RDX: 0000000000000000 RSI: ffffffff8def8ec0 RDI: ffffffff8c27c800
RBP: 000000009fffffff R08: ffffffff9011b3b7 R09: 1ffffffff2023676
R10: dffffc0000000000 R11: fffffbfff2023677 R12: 00000000ffffe000
R13: 0000000000000010 R14: ffffc900069dff48 R15: ffffc900069dff00
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0033:0x7fda0cf9c799
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:00007fda0de3a0e8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 00007fda0d215fa8 RCX: 00007fda0cf9c799
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fda0d215fac
RBP: 00007fda0d215fa0 R08: 3fffffffffffffff R09: 0000000000000000
R10: 000000000000000c R11: 0000000000000246 R12: 0000000000000000
R13: 00007fda0d216038 R14: 00007fffae1b0810 R15: 00007fffae1b08f8
 </TASK>
sched: DL replenish lagged too much
