On Thursday 13 October 2011 20:06:34 Oliver Fromme wrote:
> I just got this panic on a recent stable/8 amd/64 system:
> panic: umass1: Unknown state 1
> Here's a screen shot from the KVM console:
> http://www.secnetix.de/olli/tmp/umass-panic.jpg
> Unfortunately, the crash dump that was written seems to be
> lost.  A quick search on the PRs doesn't reveal anything
> either ...  has anyone seen this type of panic before?
> It happened when I was switching virtual remote drives in
> the management application of an IBM blade center, i.e.
> the USB drive is actually a virtual drive emulated by the
> blade management system.  I did similar things a few times
> before without a panic, so this isn't 100% reproducable.
> Also, I'm reluctant to try again because this is a quite
> important production server.


ehci_softintr() is not part of the USB stack in 8-stable and 9-stable. Must be 
7-stable you are running.

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