watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [kworker/1:5:1373] Modules linked in: CPU: 1 PID: 1373 Comm: kworker/1:5 Not tainted 5.4.249-syzkaller-00007-g50533a8b511b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Workqueue: usb_hub_wq hub_event RIP: 0010:native_restore_fl arch/x86/include/asm/irqflags.h:41 [inline] RIP: 0010:arch_local_irq_restore arch/x86/include/asm/irqflags.h:84 [inline] RIP: 0010:kvm_wait+0xfa/0x150 arch/x86/kernel/kvm.c:852 Code: 24 14 75 26 41 f7 c7 00 02 00 00 75 0f 0f 1f 44 00 00 0f 00 2d 17 56 77 03 f4 eb 0e 0f 1f 44 00 00 0f 00 2d 08 56 77 03 fb f4 <4c> 89 7c 24 18 ff 74 24 18 9d 48 c7 44 24 20 0e 36 e0 45 49 c7 04 RSP: 0018:ffff8881db27f4a0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000003 RBX: 1ffff1103b64fe98 RCX: 0000000086ee5800 RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffffffff86ee5840 RBP: ffff8881db27f550 R08: dffffc0000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000 R13: ffffffff86ee5840 R14: ffff8881db27f4e0 R15: 0000000000000246 FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffff3cff0f8 CR3: 00000001eb520000 CR4: 00000000003406a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:652 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x72f/0xc70 kernel/locking/qspinlock.c:507 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:642 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:50 [inline] queued_spin_lock include/asm-generic/qspinlock.h:81 [inline] do_raw_spin_lock include/linux/spinlock.h:181 [inline] __raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_lock+0x139/0x1b0 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] kernfs_put+0x2c3/0x4b0 fs/kernfs/dir.c:546 kernfs_remove_by_name_ns+0x99/0x100 fs/kernfs/dir.c:1521 kernfs_remove_by_name include/linux/kernfs.h:583 [inline] sysfs_unmerge_group+0xcf/0x130 fs/sysfs/group.c:368 rpm_sysfs_remove drivers/base/power/sysfs.c:730 [inline] dpm_sysfs_remove+0x70/0xc0 drivers/base/power/sysfs.c:739 device_del+0x252/0xfa0 drivers/base/core.c:3062 device_unregister+0x11/0x30 drivers/base/core.c:3117 usb_remove_ep_devs+0x4c/0x80 drivers/usb/core/endpoint.c:188 remove_intf_ep_devs drivers/usb/core/message.c:1125 [inline] usb_disable_device+0x307/0x750 drivers/usb/core/message.c:1276 usb_disconnect+0x32c/0x890 drivers/usb/core/hub.c:2229 hub_port_connect drivers/usb/core/hub.c:5027 [inline] hub_port_connect_change drivers/usb/core/hub.c:5303 [inline] port_event drivers/usb/core/hub.c:5449 [inline] hub_event+0x1c75/0x4d50 drivers/usb/core/hub.c:5531 process_one_work+0x765/0xd20 kernel/workqueue.c:2287 worker_thread+0xaef/0x1470 kernel/workqueue.c:2433 kthread+0x2da/0x360 kernel/kthread.c:288 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:354