rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	1-....: (10500 ticks this GP) idle=e8ec/1/0x4000000000000000 softirq=14218/14218 fqs=5247
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:   961547          0            0
rcu: 	cputime:    24221      28268           96   ==> 52500(ms)
rcu: 	(t=10502 jiffies g=7265 q=3522 ncpus=2)
CPU: 1 UID: 0 PID: 6034 Comm: syz.2.64 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_unlock_special+0x87/0x4c0
Code: f1 f1 f1 00 f2 f2 f2 4a 89 04 2b 66 42 c7 44 2b 09 f3 f3 42 c6 44 2b 0b f3 65 44 8b 35 62 2c f8 10 41 f7 c6 00 00 f0 00 74 49 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 66 42 c7 44 2b
RSP: 0018:ffffc900001e05e0 EFLAGS: 00000206
RAX: be92ca7f5ad36a00 RBX: 1ffff9200003c0c4 RCX: be92ca7f5ad36a00
RDX: 0000000000000003 RSI: ffffffff8d998940 RDI: ffffffff8be29f40
RBP: ffffc900001e06d8 R08: ffffffff8fa1e9f7 R09: 1ffffffff1f43d3e
R10: dffffc0000000000 R11: fffffbfff1f43d3f R12: ffffffff8e144400
R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000002
FS:  00007fd9931bd6c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd99317afc8 CR3: 000000010d8d4000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 __rcu_read_unlock+0x84/0xe0
 unwind_next_frame+0x19ae/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
 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:__sanitizer_cov_trace_const_cmp1+0x83/0x90
Code: 8d 52 28 4d 39 ca 77 22 89 ff 89 f6 49 ff c0 4c 89 01 48 c7 44 11 08 01 00 00 00 48 89 7c 11 10 48 89 74 11 18 48 89 44 11 20 <c3> cc cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900060c73a8 EFLAGS: 00000297
RAX: ffffffff81746e93 RBX: 00000001095bd500 RCX: 0000000000000002
RDX: ffff8881069b8000 RSI: 0000000000000028 RDI: 0000000000000040
RBP: ffff8881084e5d00 R08: 000000000000000f R09: ffff8881084e5100
R10: 0000000000000000 R11: fffffbfff1f43d3f R12: ffffea0000000000
R13: 0000000000000000 R14: 0000000000000028 R15: dffffc0000000000
 __phys_addr+0xa3/0x180
 ___cache_free+0x23/0xf0
 qlist_free_all+0x97/0x140
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_lru_noprof+0x1c6/0x3d0
 __d_alloc+0x31/0x6f0
 d_alloc_parallel+0xe0/0x14e0
 __lookup_slow+0x116/0x3d0
 start_creating+0x22e/0x3c0
 debugfs_create_dir+0x28/0x420
 ieee80211_debugfs_recreate_netdev+0x1a6/0x1460
 ieee80211_if_change_type+0x53a/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: 0033:0x7fd99238e9a9
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:00007fd9931bd038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd9925b5fa0 RCX: 00007fd99238e9a9
RDX: 0000200000000080 RSI: 0000000000008b06 RDI: 0000000000000009
RBP: 00007fd992410d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd9925b5fa0 R15: 00007fff8dccad38
 </TASK>
sched: DL replenish lagged too much
clocksource: Long readout interval, skipping watchdog check: cs_nsec: 105155427403 wd_nsec: 105155429389
