Random panics on FreeeBSD 6.0
micahjon at ywave.com
Sat Jun 17 02:17:12 UTC 2006
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.
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
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