kernel panics on sio interrupt-level overflows

Kris Kennaway kris at
Mon Apr 4 14:48:35 PDT 2005

On Mon, Apr 04, 2005 at 10:35:11AM +0200, Oleg Tarasov wrote:
> Hello,
> Kris Kennaway <kris at> wrote:
> > Does enabling WITNESS support (and possibly excluding
> > WITNESS_SKIPSPIN) produce any diagnostics?
> > Kris
> I can enable WITNESS, but I don't know where to find that useful
> information I can provide.

Turn on mpsafenet again, and with WITNESS also enabled you may get
diagnostics on the system console about lock order reversals or other
SMP programming errors that could be the cause of your panics.

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