rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=09ec/1/0x4000000000000000 softirq=13748/13753 fqs=4606
rcu: 	         hardirqs   softirqs   csw/system
rcu: 	 number:  1043890          0            0
rcu: 	cputime:    23968      28521           73   ==> 52490(ms)
rcu: 	(t=10500 jiffies g=6149 q=2206 ncpus=2)
CPU: 0 UID: 0 PID: 6057 Comm: syz.1.80 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:process_backlog+0x2f1/0x14f0
Code: a8 ca a1 92 49 01 c6 48 8d 1d 00 00 00 00 4c 89 f7 31 f6 31 d2 31 c9 41 b8 01 00 00 00 45 31 c9 53 e8 d3 c1 44 f8 48 83 c4 08 <48> 8b 44 24 48 42 0f b6 04 28 84 c0 0f 85 97 0e 00 00 44 8b 3d 86
RSP: 0018:ffffc90000007a60 EFLAGS: 00000296
RAX: 82e58f715ccca200 RBX: ffffffff89597925 RCX: 82e58f715ccca200
RDX: 0000000000000000 RSI: ffffffff8db8655b RDI: ffffffff8be29f40
RBP: ffffc90000007b88 R08: 0000000000000000 R09: ffffffff89597925
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffff88804b03ba50
R13: dffffc0000000000 R14: ffff88804b03baa8 R15: ffff88804b03bb00
FS:  00007fd355c426c0(0000) GS:ffff8880b861f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c34be96 CR3: 0000000021d64000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 __napi_poll+0xc7/0x480
 net_rx_action+0x707/0xe30
 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:__local_bh_enable_ip+0x135/0x1c0
Code: 8b e8 8f 02 e9 09 65 66 8b 05 6f 5f 1a 11 66 85 c0 75 5a bf 01 00 00 00 e8 a8 32 0b 00 e8 33 04 42 00 fb 65 8b 05 4b 5f 1a 11 <85> c0 75 05 e8 82 f5 ad ff 48 c7 04 24 0e 36 e0 45 4b c7 04 37 00
RSP: 0018:ffffc90003c9f6a0 EFLAGS: 00000286
RAX: 0000000000000000 RBX: 0000000000000201 RCX: 82e58f715ccca200
RDX: 0000000000000006 RSI: ffffffff8d99883e RDI: ffffffff8be29f40
RBP: ffffc90003c9f730 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: ffffffff8ae2036e
R13: ffff888023378000 R14: dffffc0000000000 R15: 1ffff92000793ed4
 __ieee80211_stop_tx_ba_session+0x4fe/0x900
 ieee80211_sta_tear_down_BA_sessions+0x260/0x5c0
 __sta_info_destroy_part1+0x132/0x15c0
 __sta_info_flush+0x3fa/0x710
 ieee80211_ibss_disconnect+0x2da/0x7c0
 ieee80211_ibss_leave+0x47/0x150
 cfg80211_leave_ibss+0x1e7/0x410
 cfg80211_change_iface+0x4e3/0xef0
 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: 0033:0x7fd354d8e9a9
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:00007fd355c42038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd354fb5fa0 RCX: 00007fd354d8e9a9
RDX: 0000200000000080 RSI: 0000000000008b06 RDI: 0000000000000009
RBP: 00007fd354e10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd354fb5fa0 R15: 00007fff91335e18
 </TASK>
sched: DL replenish lagged too much
