RE: what causes Machine Check exception? revisited (2.2.18)

From: Simon Richter (Simon.Richter@phobos.fachschaften.tu-muenchen.de)
Date: Mon May 07 2001 - 13:12:04 EST

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On Mon, 7 May 2001, Bene, Martin wrote:

[MCE caused by bad RAM]

> I don't think there is a way a machine check exception can be triggered by
> software - which it would have to be in order to be caused by bad RAMs.

A MCE is triggered by an ECC error - no software involved. A good trap
handler will then see if the error is recoverable (one-bit errors are),
notify userspace (so the admin gets mailed) and move the data out of this
page.

Simon

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Next message: Erik Mouw: "[PATCH] kernel-api book should also include kernel/module.c"
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In reply to: Bene, Martin: "RE: what causes Machine Check exception? revisited (2.2.18)"
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