Re: Parity/ECC Error handling in Linux

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Tue May 30 2000 - 11:38:11 EST


> handles memory errors. AFAIK the P6 uses the machine check exception
> (mce) to report problems and the machine check architecture (mca)
> provides information about the faulty subsystem. Is there any reason

yes

> that Linux doesn't use MCE and MCA? Are memory errors still reported
> using NMI?

Nobody has implemented it on Linux. NMI is used instead.

> Or is it just that nobody implemented it in Linux? Is anybody working
> on it? Is parity/ECC handling not relevant?

The ECC correction is done in hardware. The MCE/NMI is done so that you know
there may be issues

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