Date: Sun, 6 Jun 2004 22:52:16 -0700 (PDT) From: Doug White <dwhite@gumbysoft.com> To: Mark Cartwright <sirloper@yahoo.com> Cc: freebsd-sparc64@freebsd.org Subject: Re: freebsd-sparc64 Digest, Vol 63, Issue 4 Message-ID: <20040606224703.Q12662@carver.gumbysoft.com> In-Reply-To: <20040604195317.45403.qmail@web21508.mail.yahoo.com> References: <20040604195317.45403.qmail@web21508.mail.yahoo.com>
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On Fri, 4 Jun 2004, Mark Cartwright wrote:
> Heya. I'm not a developer, so can't speak to all
> possible causes of this (such as actual kernel code,
> etc), but I am a pretty proficient Sun guy so can
> speak on at leas thte first part.
>
> 99.99% of the time when you see a RED State exception
> it is either the CPU itself or its ECache. Since, if
> I've read the rest of the thread correctly, you're
> only seeing it under load it sounds like it's likely
> the ECache, not the processor itself.
Sounds about right. From a sunsolve doc:
"Red State" exception error messages are generated by the OBP when a CPU
is hung and normal execution cannot be continued.
The specific article this appeared in referred to a firmware bug in
V480/V880 systems, so it can be caused by CPU or chipset programming bugs.
For a machine that hasn't died before, though, I'd suspect a hardware
issue.
>
> Hope this helps.
>
> > Message: 1
> > Date: Thu, 3 Jun 2004 18:24:14 -0700
> > From: Kris Kennaway <kris@obsecurity.org>
> > Subject: Re: panic: trapanic: vm_fault: fault on
> > nofault entry, addr:
> > cfd76000
> > To: Kris Kennaway <kris@obsecurity.org>
> > Cc: sparc64@FreeBSD.org
> > Message-ID:
> > <20040604012414.GA89079@xor.obsecurity.org>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > On Mon, May 31, 2004 at 08:08:07PM -0700, Kris
> > Kennaway wrote:
> > > One of the sparc machines (running -CURRENT from
> > about 2 days ago) panicked:
> > >
> > > panic: trapanic: vm_fault: fault on nofault entry,
> > addr: cfd76000
> > > at line 277 in file
> >
> /a/portbuild/sparc64/src-client/sys/vm/vm_fault.ccpuid
> > = 0;
> > > Debugger("panic")
> > > Stopped at
> > > RED State Exception
> > >
> > > TL=0000.0000.0000.0005 TT=0000.0000.0000.0080
> > > TPC=0000.0000.c003.c208
> > TnPC=0000.0000.c003.c20c TSTATE=0000.0044.5800.1507
> > > TL=0000.0000.0000.0004 TT=0000.0000.0000.0010
> > > TPC=0000.0000.c004.0f48
> > TnPC=0000.0000.c004.0f4c TSTATE=0000.0044.5800.1507
> > > TL=0000.0000.0000.0003 TT=0000.0000.0000.0010
> > > TPC=0000.0000.c004.0f48
> > TnPC=0000.0000.c004.0f4c TSTATE=0000.0044.5800.1506
> > > TL=0000.0000.0000.0002 TT=0000.0000.0000.0063
> > > TPC=0000.0000.c004.0fac
> > TnPC=0000.0000.c004.0fb0 TSTATE=0000.0044.5800.1605
> > > TL=0000.0000.0000.0001 TT=0000.0000.0000.0068
> > > TPC=0000.0000.4020.f87c
> > TnPC=0000.0000.4020.f880 TSTATE=0000.0099.0000.1206
> > >
> > > It hung here.
> >
> > Got another one:
> >
> > TL=0000.0000.0000.0005 TT=0000.0000.0000.0068
> > TPC=0000.0000.c003.d000 TnPC=0000.0000.c003.d004
> > TSTATE=0000.0044.5800.1504
> > TL=0000.0000.0000.0004 TT=0000.0000.0000.0080
> > TPC=0000.0000.c003.c208 TnPC=0000.0000.c003.c20c
> > TSTATE=0000.0044.5800.1502
> > TL=0000.0000.0000.0003 TT=0000.0000.0000.0010
> > TPC=0000.0000.c003.cd00 TnPC=0000.0000.c003.cd04
> > TSTATE=0000.0044.5804.1402
> > TL=0000.0000.0000.0002 TT=0000.0000.0000.0068
> > TPC=0000.0000.c004.0f64 TnPC=0000.0000.c004.0f68
> > TSTATE=0000.0044.5800.1502
> > TL=0000.0000.0000.0001 TT=0000.0000.0000.0063
> > TPC=0000.0000.0012.687c TnPC=0000.0000.0012.6880
> > TSTATE=0000.0099.0000.1201
> >
> > Is this a sign of hardware failure?
> >
>
>
>
>
>
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--
Doug White | FreeBSD: The Power to Serve
dwhite@gumbysoft.com | www.FreeBSD.org
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