usb 1-1: Using ep0 maxpacket: 8 usb 1-1: config 0 has an invalid interface number: 250 but max is 0 usb 1-1: config 0 has no interface number 0 usb 1-1: New USB device found, idVendor=05a9, idProduct=2640, bcdDevice=5b.bf usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? usb 1-1: string descriptor 0 read error: -71 WARNING: CPU: 1 PID: 21 at kernel/workqueue.c:3030 __flush_work+0x93f/0xa80 kernel/workqueue.c:3030 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 21 Comm: kworker/1:1 Not tainted 5.2.0-rc1+ #10 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xca/0x13e lib/dump_stack.c:113 panic+0x292/0x6c9 kernel/panic.c:218 __warn.cold+0x20/0x4b kernel/panic.c:575 report_bug+0x262/0x2a0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x12b/0x1e0 arch/x86/kernel/traps.c:272 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:986 RIP: 0010:__flush_work+0x93f/0xa80 kernel/workqueue.c:3030 Code: e8 56 45 23 00 48 c7 c2 89 86 19 81 be 01 00 00 00 45 31 e4 48 c7 c7 20 82 ef 86 e8 6b 4d 0b 00 e9 d9 fb ff ff e8 31 45 23 00 <0f> 0b 45 31 e4 e9 ca fb ff ff e8 22 45 23 00 e8 9d 07 12 00 31 ff RSP: 0018:ffff8881d9efed98 EFLAGS: 00010293 RAX: ffff8881d9e36000 RBX: ffff8881cfcb05b0 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: ffffffff811986bf RDI: 0000000000000001 RBP: ffff8881d9efef00 R08: ffff8881d9e36000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000293 R15: ffff8881cfcb05c8 __cancel_work_timer+0x312/0x440 kernel/workqueue.c:3126 uvc_ctrl_cleanup_device+0x22/0x483 drivers/media/usb/uvc/uvc_ctrl.c:2353 uvc_delete+0x29/0x2f0 drivers/media/usb/uvc/uvc_driver.c:1871 kref_put include/linux/kref.h:67 [inline] uvc_probe+0xf95/0x64e4 drivers/media/usb/uvc/uvc_driver.c:2228 usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361 really_probe+0x281/0x660 drivers/base/dd.c:509 driver_probe_device+0x104/0x210 drivers/base/dd.c:670 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:777 bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454 __device_attach+0x217/0x360 drivers/base/dd.c:843 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514 device_add+0xae6/0x16f0 drivers/base/core.c:2111 usb_set_configuration+0xdf6/0x1670 drivers/usb/core/message.c:2023 generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210 usb_probe_device+0x99/0x100 drivers/usb/core/driver.c:266 really_probe+0x281/0x660 drivers/base/dd.c:509 driver_probe_device+0x104/0x210 drivers/base/dd.c:670 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:777 bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454 __device_attach+0x217/0x360 drivers/base/dd.c:843 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514 device_add+0xae6/0x16f0 drivers/base/core.c:2111 usb_new_device.cold+0x8c1/0x1016 drivers/usb/core/hub.c:2534 hub_port_connect drivers/usb/core/hub.c:5089 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x1ada/0x3590 drivers/usb/core/hub.c:5432 process_one_work+0x905/0x1570 kernel/workqueue.c:2268 worker_thread+0x96/0xe20 kernel/workqueue.c:2414 kthread+0x30b/0x410 kernel/kthread.c:254 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds..