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workqueue: cannot queue hci_cmd_timeout on wq hci0
WARNING: kernel/workqueue.c:2271 at __queue_work+0xd53/0x1020, CPU#1: kworker/1:6/5874
Modules linked in:
CPU: 1 UID: 0 PID: 5874 Comm: kworker/1:6 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: usb_hub_wq hub_event
RIP: 0010:__queue_work+0xd7e/0x1020
Code: 83 c5 18 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ef e8 13 79 a1 00 49 8b 75 00 49 81 c7 78 01 00 00 4c 89 f7 4c 89 fa <67> 48 0f b9 3a 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d e9 4a 98
RSP: 0018:ffffc90000a08c10 EFLAGS: 00010086
RAX: 1ffff11023393951 RBX: 0000000000000008 RCX: ffff88816b06ba80
RDX: ffff88811ffed978 RSI: ffffffff8a9d6350 RDI: ffffffff9014da70
RBP: 0000000000000100 R08: ffffffff9011e3b7 R09: 1ffffffff2023c76
R10: dffffc0000000000 R11: ffffffff818d63b0 R12: dffffc0000000000
R13: ffff888119c9ca88 R14: ffffffff9014da70 R15: ffff88811ffed978
FS:  0000000000000000(0000) GS:ffff8882a9463000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c44f6b5 CR3: 0000000104710000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 call_timer_fn+0x192/0x640
 __run_timer_base+0x67e/0x8b0
 run_timer_softirq+0xb7/0x170
 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:console_flush_all+0x801/0xb20
Code: ff ff e8 b2 ef 20 00 90 0f 0b 90 e9 85 fc ff ff e8 a4 ef 20 00 e8 af 6b 07 0a 48 85 db 74 c0 e8 95 ef 20 00 fb 48 8b 5c 24 08 <48> 8b 44 24 20 42 80 3c 20 00 4c 8b 74 24 18 74 08 4c 89 f7 e8 36
RSP: 0018:ffffc9000671e580 EFLAGS: 00000283
RAX: ffffffff81a4a6eb RBX: ffffc9000671e6e0 RCX: 0000000000100000
RDX: ffffc90025dfa000 RSI: 0000000000010d12 RDI: 0000000000010d13
RBP: ffffc9000671e690 R08: ffffffff9011e3b7 R09: 1ffffffff2023c76
R10: dffffc0000000000 R11: fffffbfff2023c77 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff8f00dbe0
 console_unlock+0xd1/0x1c0
 vprintk_emit+0x485/0x560
 dev_vprintk_emit+0x355/0x420
 dev_printk_emit+0xee/0x140
 _dev_info+0x11e/0x180
 dvb_usbv2_probe+0x6aa/0x3d40
 usb_probe_interface+0x668/0xc90
 really_probe+0x267/0xaf0
 __driver_probe_device+0x18c/0x320
 driver_probe_device+0x4f/0x240
 __device_attach_driver+0x279/0x430
 bus_for_each_drv+0x258/0x2f0
 __device_attach+0x2c5/0x450
 device_initial_probe+0xa1/0xd0
 bus_probe_device+0x12a/0x220
 device_add+0x7b6/0xb70
 usb_set_configuration+0x1a87/0x2110
 usb_generic_driver_probe+0x8d/0x150
 usb_probe_device+0x1c4/0x3b0
 really_probe+0x267/0xaf0
 __driver_probe_device+0x18c/0x320
 driver_probe_device+0x4f/0x240
 __device_attach_driver+0x279/0x430
 bus_for_each_drv+0x258/0x2f0
 __device_attach+0x2c5/0x450
 device_initial_probe+0xa1/0xd0
 bus_probe_device+0x12a/0x220
 device_add+0x7b6/0xb70
 usb_new_device+0xa08/0x16f0
 hub_event+0x2a1c/0x4f30
 process_scheduled_works+0xb6e/0x18c0
 worker_thread+0xa53/0xfc0
 kthread+0x388/0x470
 ret_from_fork+0x51e/0xb90
 ret_from_fork_asm+0x1a/0x30
 </TASK>
