Re: Endless loop with "detected XactErr"

From: Alan Stern
Date: Fri Apr 08 2011 - 12:32:20 EST

On Fri, 8 Apr 2011, Zdenek Kabelac wrote:

> > You might want to track down the original source of the
> > underlying error. ÂSince the machine was docked the entire time, the
> > line saying:
> >
> > [ ï473.873802] ACPI: \_SB_.GDCK - undocking
> >
> > definitely looks suspicious. ÂI bet if you can fix that then the USB
> > problems will go away.
> Hmm looking now into more logs - it might have been used this:
> "echo 1 >/sys/devices/platform/dock.0/undock"
> for this particular testcase - I might have been checking several
> combination and making modification of some pm script for this.
> So yes - in this case the machine could have been undocked by the above command.
> Is that a major problem for USB ?

Not normally, but maybe the software undock didn't work correctly.

Or maybe it did work. What happens if you disable CONFIG_USB_DEBUG?

Alan Stern

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