Date: Fri, 16 Jun 2006 19:17:08 -0700 From: Micah <micahjon@ywave.com> To: Matthew Navarre <mnavarre@cox.net> Cc: questions@freebsd.org Subject: Re: Random panics on FreeeBSD 6.0 Message-ID: <44936624.80801@ywave.com> In-Reply-To: <DED9F0AB-B6A7-4769-8EB9-DD5D9F9AC094@cox.net> References: <DED9F0AB-B6A7-4769-8EB9-DD5D9F9AC094@cox.net>
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Matthew Navarre wrote: > I've got an AMD Sempron machine running FreeBSD 6.0 that's been > experiencing random panics while trying to build world. In fact it just > paniced now, with no activity. > > The panic message is TPTE at 0xbfc20624 IS ZERO @ VA 08100000 > bad pte > > This started last night while I was portupgrading ruby and I got random > apps segfaulting, mostly gcc, so I suspected bad memory. I installed new > memory today, tried to buildworld. And *BAM* panic: bad pte > > I'm still guessing that this is a hardware problem, and not software but > I'm not sure. If anyone can give me a clue I'd appreciate it. > > Machine details: > AMD Sempron > ECS K8M800-M2 mainboard > 1 GB Kingston PC-3200. > > Thanks, > Matt First, a quick Google of "bad pte" turns up some ideas. Try disabling or changing APIC and/or ACPI settings. Make sure your swap partition is error free and has enough room. Google a bit more just on the lists.freebsd.org site for several possibilities. For hardware, you can try memtest86+ to check to make sure the new memory is good. There are other stress tests you can run as well - I usually use the ultimate boot CD for that stuff. Other possible problems are faulty or too small power supply; too much heat on CPU, RAM, or expansion boards; faulty expansion cards and/or components; or faulty hard drive. HTH, Micah
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