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Subject: Re: Machine Check Exception !
From: Lee Revell <rlrevell@joe-job.com>
To: Nauman Tahir <nauman.tahir@gmail.com>
Cc: "Legend W." <mrwangxc@gmail.com>, linux-kernel@vger.kernel.org
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Date: Tue, 27 Dec 2005 12:51:03 -0500
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On Tue, 2005-12-27 at 11:46 +0500, Nauman Tahir wrote:
> On 12/27/05, Legend W. <mrwangxc@gmail.com> wrote:
> > Hello,
> >
> > I get the following message under 2.4.21 from RedHat:
> >
> > CPU 3: Machine Check Exception: 0000000000000004
> > <Bank 0: b20000001040080f
> >
> > and the box is dead.
> >
> > When i use parsemce, it said:
> > Status: (4) Machine Check in progress.
> > Restart IP invalid.
> > parsebank(0): b20000001040080f @ 3
> >         External tag parity error
> >         CPU state corrupt. Restart not possible
> >         Error enabled in control register
> >         Error not corrected.
> >         Bus and interconnect error
> >         Participation: Local processor originated request
> >         Timeout: Request did not timeout
> >         Request: Generic error
> >         Transaction type : Invalid
> >         Memory/IO : Other
> >
> > Can anybody please enlighten me what this means or what a possible
> > problem behind might be?
> >
> > Thank you in advance
> >
> > PS: my box has dual Xeon 2.8G CPU
> 
> if you want to make your machine run any way use "nomce" at boot
> prompt against your respective grub entry.

This is a terrible idea.  MCEs indicate some kind of hardware problem,
it would be idiotic to just ignore that.

Figure out the hardware problem and fix it (bad RAM, overheating, poorly
seated card, etc).

Lee

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