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Date:      Sat, 17 Jun 2006 12:46:56 -0700
From:      Matthew Navarre <mnavarre@cox.net>
To:        Alex Zbyslaw <xfb52@dial.pipex.com>
Cc:        questions@freebsd.org
Subject:   Re: Random panics on FreeeBSD 6.0
Message-ID:  <15E19A2B-C411-4E03-8D8D-412E4069B505@cox.net>
In-Reply-To: <4493DCE9.2000508@dial.pipex.com>
References:  <DED9F0AB-B6A7-4769-8EB9-DD5D9F9AC094@cox.net> <44936624.80801@ywave.com> <4493DCE9.2000508@dial.pipex.com>

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On Jun 17, 2006, at 3:43 AM, Alex Zbyslaw wrote:

> 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.
>>

Yup, looks like a bad memory slot along with a bad stick of RAM. I  
switched slots and installed a known-good stick of RAM and was able  
to build world. So I need to get the mainboard replaced, but at least  
it's not falling over in a stiff breeze.

Stupid hardware.

Thanks, guys
Matt

> As well as the things mentioned, it could also be a bad memory slot  
> (rather than chip), so try with one chip in one slot; if it still  
> fails, one chip in another slot; if it fails another chip in one  
> slot etc.  It could be a combination :-(
>
> --Alex
>
>




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