2002-12-15 20:14:24

by Felix von Leitner

[permalink] [raw]
Subject: Machine Check Exception

As soon as I start oggenc on my 2.5 kernel, I get this message:

CPU 0: Machine Check Exception: 0000000000000004
Bank 0: f60600000000135 at 000000001ea46db0
Kernel panic: CPU context corrupt

This vc then hangs, but I could log in and write down the message on
another vc. Is this a hardware error? Should I replace my CPU? My
memory? Is my machine overheating? I have had several strange and
unexplained segfaults and reboots under 2.4 recently.

Felix


2002-12-15 20:31:27

by Jan-Benedict Glaw

[permalink] [raw]
Subject: Re: Machine Check Exception

On Sun, 2002-12-15 21:22:27 +0100, Felix von Leitner <[email protected]>
wrote in message <[email protected]>:
> As soon as I start oggenc on my 2.5 kernel, I get this message:
>
> CPU 0: Machine Check Exception: 0000000000000004
> Bank 0: f60600000000135 at 000000001ea46db0
> Kernel panic: CPU context corrupt
>
> This vc then hangs, but I could log in and write down the message on
> another vc. Is this a hardware error? Should I replace my CPU? My
> memory? Is my machine overheating? I have had several strange and
> unexplained segfaults and reboots under 2.4 recently.

Probably you're suffering from bad RAM. Please create a memtest86 boot
floppy and try it in your own... Segfaults and reboots mostly are bad
CPU fans or bad RAM:-p

MfG, JBG

--
Jan-Benedict Glaw [email protected] . +49-172-7608481
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2002-12-16 21:51:10

by Felipe W Damasio

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Subject: Re: Machine Check Exception

Felix von Leitner wrote:
> As soon as I start oggenc on my 2.5 kernel, I get this message:
>
> CPU 0: Machine Check Exception: 0000000000000004
> Bank 0: f60600000000135 at 000000001ea46db0
> Kernel panic: CPU context corrupt
>
> This vc then hangs, but I could log in and write down the message on
> another vc. Is this a hardware error? Should I replace my CPU? My
> memory? Is my machine overheating? I have had several strange and
> unexplained segfaults and reboots under 2.4 recently.

Looks like a instruction fetch error from the level 1 cache.

Your CPU may be overheating, yes. Or it could even be a faulty processor.

Could you please check your cooler? What's the average CPU temp.?

Felipe