Random panics on FreeeBSD 6.0
mnavarre at cox.net
Sat Jun 17 07:33:19 UTC 2006
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.
>>> 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
>>> 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.
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