Re: PATCH 2.5.x disable BAR when sizing

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Thu Dec 19 2002 - 21:54:28 EST


On Thu, 2002-12-19 at 21:37, Grant Grundler wrote:
>
> Martin,
> In April 2002, turukawa@icc.melco.co.jp sent a 2.4.x patch to disable
> BARs while the BARs were being sized. I've "forward ported" this patch
> to 2.5.x (appended). turukawa's excellent problem description and
> original posting are here:
> https://lists.linuxia64.org/archives//linux-ia64/2002-April/003302.html
>
> David Mosberger agrees this is an "obvious fix".
> We've been using this in the ia64 2.4 code stream since about August.

We've rejected this twice already from different people.

Nothing says your memory can't be behind the bridge and you just turned
memory access off. Whoops bang, game over.

And yes this happens on some PC class systems.

Alan

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