FreeBSD -STABLE servers repeatedly crashing.

[Kris Kennaway]

On Wed, Jun 29, 2005 at 06:05:35AM -0400, Kris Kennaway wrote:
> On Tue, Jun 28, 2005 at 11:26:06AM -0400, Matt Juszczak wrote:
> 
> > >OK, when it crashes next and is sat at the "db>" prompt, type "tr" and
> > >press enter to get a trace.  Copy this down (or have a serial console to
> > >capture the output).  Also, try typing "call doadump()" and see if that
> > >succeeds in generating a crash dump.  How were you trying to generate
> > >one before?
> > >
> > >Gavin
> > > 
> > >
> > 
> > I can't type anything.  The machine locks up.
> > 
> > See: http://paste.atopia.net/126
> > 
> > After CPUID: 1, the machine locks cold and nothing else is printed to 
> > the screen.
> 
> Try two things:
> 
> 1) adding 'options KDB_STOP_NMI' to your kernel config.

I just learned that you also need to set the
debug.kdb.stop_cpus_with_nmi=1 sysctl (e.g. in sysctl.conf).

Kris
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