Arch Linux

raphaelm

Member

Registered: 2014-05-09

Posts: 7

USB is randomly dying

Hello,

during the last months, I experienced a few occurences of a bug that causes all connected USB devices to stop working until the next reboot. I don't have any idea how to debug is. The only clue I found until now was the following dmesg output:

[86792.410901] usb 4-3.2: reset SuperSpeed USB device number 4 using xhci_hcd
[86792.424359] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8805f841cb40
[86792.424360] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8805f841cb88
[86823.565225] usb 4-3.2: reset SuperSpeed USB device number 4 using xhci_hcd
[86823.578748] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8805f841cb40
[86823.578750] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8805f841cb88
[86859.456638] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
[86869.543399] Watchdog[836]: segfault at 0 ip 00007f4e33a36d7b sp 00007f4e1bd68560 error 6 in chromium[7f4e2f7fa000+66c6000]
[86869.764700] xhci_hcd 0000:00:14.0: Stopped the command ring failed, maybe the host is dead
[86869.764710] xhci_hcd 0000:00:14.0: Abort command ring failed
[86869.764713] xhci_hcd 0000:00:14.0: HC died; cleaning up
[86869.764730] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
[86869.764804] sched: RT throttling activated
[86869.764816] usb 3-4: USB disconnect, device number 2
[86869.765473] usb 4-3: USB disconnect, device number 2
[86869.790565] usb 3-7: USB disconnect, device number 9
[86869.927178] usb 3-9: USB disconnect, device number 10
[86869.927343] usb 3-10: USB disconnect, device number 13
[86869.927488] usb 3-11: USB disconnect, device number 6
[86869.928090] usb 3-13: USB disconnect, device number 7
[86869.928207] usb 3-14: USB disconnect, device number 8
[86869.966940] usb 4-3.2: device not accepting address 4, error -62
[86869.966958] usb 4-3.2: USB disconnect, device number 4
[86870.097284] usb 4-5: USB disconnect, device number 3

Can someone help me how to debug (or fix) this?

biergaizi

Member

Registered: 2015-02-19

Posts: 13

Re: USB is randomly dying

You could try to ask on LKML for suggestions .