6.0-BETA2 sbflush_locked panic, was Re: Supermicro H8DAR-8 motherboard

John Baldwin jhb at FreeBSD.org
Wed Aug 31 20:29:12 GMT 2005

On Wednesday 31 August 2005 03:52 pm, Guy Helmer wrote:
> Scott Long wrote:
> > Guy Helmer wrote:
> >> We received the H8DAR-8 unit a little over a week ago with dual
> >> Opteron 275s and it has been running well since.  I didn't have any
> >> problem installing FreeBSD 6.0-BETA1, and I ran "make -j12
> >> buildworld" continuously on it over a weekend.  It finally crashed on
> >> an sbfree call, but I'd chalk that up to BETA1.  It's been solid
> >> under a lighter load since.  I like the board and I'm glad Supermicro
> >> was able to cram it into a 1U case :-)
> >
> > Do you have any crash data on the panic?  Unfortunately, we haven't
> > perfected the 'self fixing beta release', so we rely on good reports
> > to get bugs fixed manually =-)
> >
> > Scott
> OK, here is the backtrace (apparently bogus stack frames elided).
> Fortunately, this is repeatable; unfortunately, it takes a couple of
> days of repeated "make -j12 buildworld" before it crashes.  Please let
> me know if I should file a PR or provide any additional information.

I've seen this panic on a quad PII box as well.  Go talk to Robert Watson, he 
can point you at someone who is working on this.

John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org

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