rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=5f54/1/0x4000000000000000 softirq=15010/15013 fqs=4881
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1333286          0            0
rcu: 	cputime:     8285      44214           35   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=11393 q=4972 ncpus=2)
CPU: 1 UID: 0 PID: 6198 Comm: syz.0.134 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:link_sta_info_hash_lookup+0xfe/0x610
Code: 24 18 49 c1 ee 03 4c 89 64 24 30 49 8d 7d 08 48 89 f8 48 c1 e8 03 0f b6 04 18 84 c0 4c 89 2c 24 0f 85 28 04 00 00 41 8b 55 08 <48> 8b 7c 24 28 be 06 00 00 00 e8 a3 e4 01 00 48 8b 3c 24 48 89 f9
RSP: 0018:ffffc90000a089d0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 1ffff1103759633d
RDX: 000000008a54e55a RSI: 0000000000000001 RDI: ffff888174c8cf08
RBP: 1ffff1103759633d R08: ffffffff8b14c6e8 R09: ffffffff8e95cd60
R10: 0000000000000006 R11: 0000000000000100 R12: ffff8881bacb19d8
R13: ffff888174c8cf00 R14: 1ffff1103759633d R15: ffff8881bacb0f20
FS:  00007f35043986c0(0000) GS:ffff8882a9284000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3504376ff8 CR3: 00000001bb200000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 link_sta_info_get_bss+0xfd/0x3b0
 ieee80211_rx_for_interface+0x76/0x630
 ieee80211_rx_list+0x2b68/0x3740
 ieee80211_rx_napi+0x1b1/0x3e0
 ieee80211_handle_queued_frames+0xe8/0x1e0
 tasklet_action_common+0x2da/0x4b0
 handle_softirqs+0x22a/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 b7 e8 f5 e8 0e ce 22 f6 fb bf 01 00 00 00 <e8> 53 a2 ff ff 9c 58 fa a9 00 02 00 00 74 05 e8 d4 cf 22 f6 bf 01
RSP: 0018:ffffc900088b7290 EFLAGS: 00000206
RAX: 0000000000002053 RBX: 0000000000000000 RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8dfabd2a RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff9030c1f7 R09: 1ffffffff206183e
R10: dffffc0000000000 R11: fffffbfff206183f R12: 0000000000000000
R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
 irqentry_exit+0x14f/0x760
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:kasan_check_range+0xb/0x2c0
Code: 09 22 8e e8 67 fe f5 fe 90 0f 0b cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 55 41 57 41 56 41 55 <41> 54 53 b0 01 48 85 f6 0f 84 ae 01 00 00 4c 8d 04 37 49 39 f8 0f
RSP: 0018:ffffc900088b73b0 EFLAGS: 00000246
RAX: 1ffff92001116eac RBX: 0000000000000010 RCX: ffffffff817700e3
RDX: 0000000000000001 RSI: 0000000000000010 RDI: ffffc900088b7578
RBP: 0000000000000000 R08: 0000000000000009 R09: ffffffff8e95cd60
R10: ffffc900088b7528 R11: fffff52001116eb1 R12: ffffc900088b7528
R13: 1ffff92001116ea7 R14: ffffc900088b7578 R15: ffffc900088b7570
 __asan_memset+0x22/0x50
 unwind_next_frame+0xf33/0x2550
 __unwind_start+0x5b8/0x760
 arch_stack_walk+0xe3/0x150
 stack_trace_save+0xa9/0x100
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x2bc/0x650
 alloc_empty_file+0x5b/0x1d0
 path_openat+0x10f/0x3860
 do_file_open+0x23e/0x4a0
 do_sys_openat2+0x113/0x200
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0x15f/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f350359cdd9
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:00007f3504398028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f3503815fa0 RCX: 00007f350359cdd9
RDX: 0000000000040100 RSI: 0000200000000180 RDI: ffffffffffffff9c
RBP: 00007f3503632d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3503816038 R14: 00007f3503815fa0 R15: 00007ffd124d33b8
 </TASK>
sched: DL replenish lagged too much
