rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P7209
rcu: 	(detected by 1, t=10502 jiffies, g=12625, q=672 ncpus=2)
task:syz.1.586       state:R  running task     stack:24608 pid:7209  tgid:7208  ppid:5830   task_flags:0x400140 flags:0x0000400e
Call Trace:
 <IRQ>
 sched_show_task+0x49d/0x630
 print_other_cpu_stall+0xfa6/0x1370
 rcu_sched_clock_irq+0x9d1/0x1090
 update_process_times+0x23c/0x2f0
 tick_nohz_handler+0x39a/0x520
 __hrtimer_run_queues+0x4e0/0xc60
 hrtimer_interrupt+0x45b/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0x52/0xc0
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:rcu_core+0x491/0x1710
Code: 5f f9 0d 00 74 1a 65 8b 05 ac 95 f7 10 85 c0 75 0f 65 8b 05 59 92 f7 10 85 c0 0f 85 7e 0f 00 00 48 8b 7c 24 18 e8 0f 5b c8 09 <48> f7 05 04 8f 6b 0c 03 00 00 00 49 bc 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffffc900001e0be0 EFLAGS: 00000246
RAX: a7225f730409fe00 RBX: ffff88813663b104 RCX: 0000000000000100
RDX: 0000000000000002 RSI: ffffffff8d99883e RDI: 00000000ffffffff
RBP: ffffc900001e0e30 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000002
R13: ffffffff8e1444c0 R14: dffffc0000000000 R15: 0000000000000a02
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
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:ffffc900032ff3e0 EFLAGS: 00000206
RAX: a7225f730409fe00 RBX: 1ffff9200065fe84 RCX: a7225f730409fe00
RDX: 0000000000000006 RSI: ffffffff8d99883e RDI: ffffffff8be29f40
RBP: ffffc900032ff4e0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000246 R15: ffffffff8e144560
 __rcu_read_unlock+0x84/0xe0
 mntput_no_expire+0x2e6/0x860
 simple_recursive_removal+0x4de/0x690
 debugfs_remove+0x5b/0x70
 ieee80211_debugfs_recreate_netdev+0xbf/0x1460
 drv_remove_interface+0x1fa/0x590
 ieee80211_do_stop+0x15cb/0x1fa0
 ieee80211_stop+0x1b1/0x220
 __dev_close_many+0x364/0x6f0
 __dev_change_flags+0x2c7/0x6d0
 netif_change_flags+0x88/0x1a0
 dev_change_flags+0x130/0x260
 dev_ioctl+0x7b4/0x1150
 sock_do_ioctl+0x22c/0x300
 sock_ioctl+0x576/0x790
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd16918e9a9
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:00007fd169f54038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd1693b5fa0 RCX: 00007fd16918e9a9
RDX: 0000200000000080 RSI: 0000000000008914 RDI: 000000000000000b
RBP: 00007fd169210d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd1693b5fa0 R15: 00007fff050d7778
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10511 jiffies! g12625 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=1 timer-softirq=4783
rcu: rcu_preempt kthread starved for 10512 jiffies! g12625 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:27320 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x16f5/0x4d00
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 rcu_gp_fqs_loop+0x301/0x1540
 rcu_gp_kthread+0x99/0x390
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 7209 Comm: syz.1.586 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_core+0x491/0x1710
Code: 5f f9 0d 00 74 1a 65 8b 05 ac 95 f7 10 85 c0 75 0f 65 8b 05 59 92 f7 10 85 c0 0f 85 7e 0f 00 00 48 8b 7c 24 18 e8 0f 5b c8 09 <48> f7 05 04 8f 6b 0c 03 00 00 00 49 bc 00 00 00 00 00 fc ff df 4c
RSP: 0018:ffffc900001e0be0 EFLAGS: 00000246
RAX: a7225f730409fe00 RBX: ffff88813663b104 RCX: 0000000000000100
RDX: 0000000000000002 RSI: ffffffff8d99883e RDI: 00000000ffffffff
RBP: ffffc900001e0e30 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000002
R13: ffffffff8e1444c0 R14: dffffc0000000000 R15: 0000000000000a02
FS:  00007fd169f546c0(0000) GS:ffff8881a3c1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffee22dbd8 CR3: 000000010efcc000 CR4: 00000000000006f0
DR0: 0000200000000300 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_irq_work+0xa3/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_irq_work+0x1a/0x20
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:ffffc900032ff3e0 EFLAGS: 00000206
RAX: a7225f730409fe00 RBX: 1ffff9200065fe84 RCX: a7225f730409fe00
RDX: 0000000000000006 RSI: ffffffff8d99883e RDI: ffffffff8be29f40
RBP: ffffc900032ff4e0 R08: ffffffff8fa1e8f7 R09: 1ffffffff1f43d1e
R10: dffffc0000000000 R11: fffffbfff1f43d1f R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000246 R15: ffffffff8e144560
 __rcu_read_unlock+0x84/0xe0
 mntput_no_expire+0x2e6/0x860
 simple_recursive_removal+0x4de/0x690
 debugfs_remove+0x5b/0x70
 ieee80211_debugfs_recreate_netdev+0xbf/0x1460
 drv_remove_interface+0x1fa/0x590
 ieee80211_do_stop+0x15cb/0x1fa0
 ieee80211_stop+0x1b1/0x220
 __dev_close_many+0x364/0x6f0
 __dev_change_flags+0x2c7/0x6d0
 netif_change_flags+0x88/0x1a0
 dev_change_flags+0x130/0x260
 dev_ioctl+0x7b4/0x1150
 sock_do_ioctl+0x22c/0x300
 sock_ioctl+0x576/0x790
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd16918e9a9
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:00007fd169f54038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd1693b5fa0 RCX: 00007fd16918e9a9
RDX: 0000200000000080 RSI: 0000000000008914 RDI: 000000000000000b
RBP: 00007fd169210d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd1693b5fa0 R15: 00007fff050d7778
 </TASK>
sched: DL replenish lagged too much
