rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10459 ticks this GP) idle=c8f4/1/0x4000000000000000 softirq=12538/12539 fqs=4879
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1362085          2            0
rcu: 	cputime:    32711      19767           36   ==> 52480(ms)
rcu: 	(t=10500 jiffies g=7913 q=4317 ncpus=2)
CPU: 1 UID: 0 PID: 5966 Comm: syz.0.23 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:ieee80211_rx_handlers+0x3ee8/0xbd60
Code: 3e ed bd f6 48 8b 44 24 50 42 80 3c 28 00 48 8b 5c 24 20 74 08 48 89 df e8 65 7d 26 f7 48 8b 33 31 ff 44 89 e2 e8 e8 24 54 fe <48> 8b 84 24 18 01 00 00 42 80 3c 28 00 48 8b 84 24 d8 00 00 00 74
RSP: 0018:ffffc90000a08660 EFLAGS: 00000246
RAX: ffffffff8b05ba81 RBX: ffffc90000a08c88 RCX: ffff888102fc3a00
RDX: 0000000000000100 RSI: ffffffff8fc79a70 RDI: 0000000000000000
RBP: ffffc90000a08910 R08: ffff888102fc3a00 R09: 0000000000000002
R10: 0000000000000001 R11: 0000000000000100 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff8880247a4750 R15: ffff88802446af00
FS:  00007f5b453db6c0(0000) GS:ffff8882a96a4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c25d764 CR3: 00000001042c6000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 ieee80211_prepare_and_rx_handle+0x25a1/0x67f0
 ieee80211_rx_list+0x2b53/0x3710
 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:finish_task_switch+0x24d/0x920
Code: 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 49 83 c4 48 4c 89 e7 e8 85 ca fc 09 e8 20 85 37 00 fb 4c 8b 65 c0 49 8d bc 24 30 16 00 00 <48> 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 1c 03 00 00 41 80
RSP: 0018:ffffc90005cb79b8 EFLAGS: 00000202
RAX: 000000000000124f RBX: 0000000000000000 RCX: 0000000080000001
RDX: 0000000000000000 RSI: ffffffff8dcf1f4e RDI: ffff888102fc5030
RBP: ffffc90005cb7a10 R08: ffffffff8ff0e0b7 R09: 1ffffffff1fe1c16
R10: dffffc0000000000 R11: fffffbfff1fe1c17 R12: ffff888102fc3a00
R13: dffffc0000000000 R14: ffff88816d805700 R15: ffff88823c63b918
 __schedule+0x1546/0x5070
 preempt_schedule_common+0x82/0xd0
 preempt_schedule_thunk+0x16/0x30
 kmem_cache_alloc_noprof+0x3dc/0x650
 security_file_alloc+0x34/0x310
 init_file+0x90/0x2b0
 alloc_empty_file+0x6e/0x1d0
 alloc_file_pseudo+0x155/0x240
 __sys_socket+0x1bb/0x310
 __x64_sys_socket+0x7a/0x90
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5b4459acb9
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:00007f5b453db028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f5b44815fa0 RCX: 00007f5b4459acb9
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000011
RBP: 00007f5b44608bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5b44816038 R14: 00007f5b44815fa0 R15: 00007ffd2b7694a8
 </TASK>
sched: DL replenish lagged too much
