rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (1 GPs behind) idle=eedc/1/0x4000000000000000 softirq=14062/14064 fqs=5247
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1191182          0            0
rcu: 	cputime:    25574      26915           75   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=6461 q=2055 ncpus=2)
CPU: 1 UID: 0 PID: 5939 Comm: syz.0.21 Not tainted 6.16.0-rc6-syzkaller-00411-g95993dc3039e-dirty #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:__rcu_read_lock+0x5/0x60
Code: 00 e9 cc fa ff ff 66 66 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 53 <65> 48 8b 1c 25 08 10 a0 92 48 81 c3 44 04 00 00 48 89 d8 48 c1 e8
RSP: 0018:ffffc900001e0608 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff81a7487a RCX: b640681b6299ec00
RDX: dffffc0000000000 RSI: ffffffff81a7487a RDI: ffffc900001e06e8
RBP: dffffc0000000000 R08: ffffc900001e07b0 R09: 000000000000000e
R10: dffffc0000000000 R11: ffffffff81ad0050 R12: 1ffff9200003c0dd
R13: ffffc900001e0720 R14: ffffc900001e06e8 R15: ffffc900041af760
FS:  00007f84e4a1b6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdcaadfd5d4 CR3: 000000010f41a000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 unwind_next_frame+0x9e/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x62/0x70
 kmem_cache_free+0x18f/0x400
 __tlb_remove_table+0x81/0x3b0
 tlb_remove_table_rcu+0x85/0x100
 rcu_core+0xca8/0x1710
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:_raw_spin_unlock_irqrestore+0xa8/0x110
Code: 74 05 e8 cb 9e 56 f6 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4f f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 13 cd 1f f6 65 8b 05 bc f9 2e 07 85 c0 74 40 48 c7 04 24 0e 36
RSP: 0018:ffffc900041af640 EFLAGS: 00000206
RAX: b640681b6299ec00 RBX: 0000000000000a02 RCX: b640681b6299ec00
RDX: 0000000000000006 RSI: ffffffff8d99883e RDI: 0000000000000001
RBP: ffffc900041af6d0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: dffffc0000000000
R13: ffff88803ba3d0a8 R14: ffffffff99d55598 R15: 1ffff92000835ec8
 debug_object_activate+0x2e2/0x420
 call_rcu+0xaa/0x9c0
 __dentry_kill+0x4d2/0x660
 dput+0x19f/0x2b0
 find_next_child+0x1e5/0x250
 simple_recursive_removal+0xf4/0x690
 debugfs_remove+0x5b/0x70
 ieee80211_debugfs_remove_netdev+0x52/0xb0
 ieee80211_teardown_sdata+0x5a/0x140
 ieee80211_if_change_type+0x461/0x990
 ieee80211_change_iface+0xd5/0x510
 cfg80211_change_iface+0x795/0xef0
 cfg80211_wext_siwmode+0x1db/0x2a0
 ioctl_standard_call+0xcb/0x1b0
 wext_ioctl_dispatch+0xee/0x410
 wext_handle_ioctl+0x100/0x1c0
 sock_ioctl+0x15f/0x790
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f84e3b8e9a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f84e4a1b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f84e3db5fa0 RCX: 00007f84e3b8e9a9
RDX: 0000200000000080 RSI: 0000000000008b06 RDI: 000000000000000a
RBP: 00007f84e3c10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f84e3db5fa0 R15: 00007fffe6f37e58
 </TASK>
sched: DL replenish lagged too much
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 105315227408 wd_nsec: 105315226511
