Re: Lockup on USB and block devices

From: Oliver Neukum
Date: Mon Oct 14 2019 - 07:59:57 EST

Am Dienstag, den 01.10.2019, 14:31 -0400 schrieb Alan Stern:
> It looks like a problem with your xHCI USB host controller. Normally a
> usb-storage transfer would be aborted after 90 seconds. But if the
> host controller (or its driver) isn't working right, and the abort
> never completes, you end up with a situation like this -- usb-storage
> and the higher SCSI and block layers waiting indefinitely for an event
> that won't occur.


that would imply that usb_unlink_urb() is malfunctioning
without taking down the whole bus. Is that likely?