Date: Tue, 2 Dec 2008 15:13:02 +0100 From: Holger Kipp <hk@alogis.com> To: Jurriaan Nijkamp <alias@jurrie.net> Cc: freebsd-amd64@freebsd.org Subject: Re: amd64/129238: [panic] System randomly panics Message-ID: <20081202141302.GA2745@intserv.int1.b.intern> In-Reply-To: <200812020920.mB29K3ox098098@freefall.freebsd.org> References: <200812020920.mB29K3ox098098@freefall.freebsd.org>
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On Tue, Dec 02, 2008 at 09:20:03AM +0000, Jurriaan Nijkamp wrote: > The following reply was made to PR amd64/129238; it has been noted by GNATS. > > From: "Jurriaan Nijkamp" <alias@jurrie.net> > To: bug-followup@FreeBSD.org, > alias@jurrie.net > Cc: > Subject: Re: amd64/129238: [panic] System randomly panics > Date: Tue, 2 Dec 2008 08:13:22 +0100 (CET) > > After another crash yesterday, I got a new dump which, according to > someone who knows what he's talking about, is actually useful. He also > said the problem may lie with faulty memory, but I must say I did a > memtest86+ test last week which said my memory was working perfectly. I once had a board (high quality) with memory (high quality) with memory problems - ie a simple make -j8 buildworld would reliably panic the system, but running memtest for hours did not show any problems. It turned out to be a timing issue - we did hit exactly the combination of memory and mainboard that didn't work well together. We swapped memory with a different system and both were running fine afterwards. So please do not rely on output of memtest alone - it is not stressing the system the way real applications do. > I am pasting the output of kgdb below. Can't comment on kgdb-output. Sorry. Regards, Hoger Kipp
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