panic: umass1: Unknown state 1

Oliver Fromme olli at
Fri Oct 14 07:53:51 UTC 2011

Hans Petter Selasky wrote:
 > 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:
 > > 
 > >
 > > 
 > > 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.
 > > 
 > Hi,
 > ehci_softintr() is not part of the USB stack in 8-stable and 9-stable. Must be 
 > 7-stable you are running.

You are right!  I'm sorry for the confusion.

The disk contains a dual-boot setup with both 7-stable and
8-stable.  Indeed, at the time the panic occured, 7-stable
was booted.

Best regards

Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M.
Handelsregister: Registergericht Muenchen, HRA 74606,  Geschäftsfuehrung:
secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün-
chen, HRB 125758,  Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart

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