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?
Meh. let's see if this thing'll actually compile...
Thanks, Micah
Matt
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