2007-10-25 10:41:18

by Michael Stiller

Subject: Linux 2.6.22.7 Machine Check Exception

Hi,

i encountered the following machine check exceptions (and hangs) with
2.6.22.7 on an Dual Core-2 Xeon System. It occurs if i try to use the
PCI-X Intel Gigabit Ethernet card after some minutes:

CPU 3: Machine Check Exception 0000000000000005
Bank 0: b200004010000400
Bank 5: b200121020000400

or

CPU 1: Machine Check Exception 0000000000000005
Bank 0: b200004010000400
Bank 5: b200121020000400

What is the cause? How can this be debugged?

Cheers,

-Michael

2007-10-31 04:42:26

by Andrew Morton

Subject: Re: Linux 2.6.22.7 Machine Check Exception

On Thu, 25 Oct 2007 12:40:58 +0200 Michael Stiller <[email protected]> wrote:

> Hi,
>
> i encountered the following machine check exceptions (and hangs) with
> 2.6.22.7 on an Dual Core-2 Xeon System. It occurs if i try to use the
> PCI-X Intel Gigabit Ethernet card after some minutes:
>
> CPU 3: Machine Check Exception 0000000000000005
> Bank 0: b200004010000400
> Bank 5: b200121020000400
>
> or
>
> CPU 1: Machine Check Exception 0000000000000005
> Bank 0: b200004010000400
> Bank 5: b200121020000400
>
> What is the cause? How can this be debugged?
>

I guess it means your hardware is sick. Presumably those two
numbers were supposed to be the same.

I assume this is the same machine as in your "2.6.22.7 reboots if PCI-X eth
card is used for capture" report?