http://bugzilla.suse.com/show_bug.cgi?id=942211 http://bugzilla.suse.com/show_bug.cgi?id=942211#c11 --- Comment #11 from Jan Ritzerfeld --- (In reply to Takashi Iwai from comment #10)

We need to identify whether the issue comes from XHCI. For example, try to remove xhci-hcd.ko from /lib/modules/$VERSION, rebuild initrd and retest multiple times.

Thanks! After removing xhci-hcd.ko /lib/modules/4.1.13-5-default/kernel/drivers/usb/host/, shutdown worked fine 6 times in a row.

Once after identifying that the issue is in xhci, you can try quirk option.

Okay, I will try each of these, one at a time: options xhci-hcd quirks=270336 options xhci-hcd quirks=8192 options xhci-hcd quirks=262144

Above all, this should be reported to upstream as well.

When I have found the minimum set of flags, I would add my hardware and flags as a comment to https://bugzilla.kernel.org/show_bug.cgi?id=66171 ? -- You are receiving this mail because: You are on the CC list for the bug.