On Jun 16, 2006, at 9:33 PM, Micah wrote:
Matthew Navarre wrote:
On Jun 16, 2006, at 7:17 PM, Micah wrote:
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.
Yeah, I was wondering if it might be something in the BIOS
settings. I'll google around and see what I find. I don't know if
the first panic was a bad pte error since the machine was running
headless.
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.
I kinda wondered if heat might be an issue, since it was kind of
tucked away in a spot with bad airflow. I'll try the memtest
thing. Is there a way to get the CPU temp in FreeBSD?
As mentioned, mbmon might work, but don't think that CPU is the
only generator of heat. I had random reboots due to an overheating
graphics card once. A spot thermometer comes in handy at a time
like this.
Eh. I think it's time to find the receipt and make the computer store
fix this POS. I think that's the last time I buy cheap crap hardware.
Thanks again,
Matt
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