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Re: [PATCH] TX49 MFC0 bug workaround

To: Sergei Shtylylov <>
Subject: Re: [PATCH] TX49 MFC0 bug workaround
From: Ralf Baechle <>
Date: Thu, 2 Feb 2006 22:11:32 +0000
Cc: Atsushi Nemoto <>,
In-reply-to: <>
Original-recipient: rfc822;
References: <> <>
User-agent: Mutt/
On Thu, Feb 02, 2006 at 09:46:25PM +0300, Sergei Shtylylov wrote:

> Atsushi Nemoto wrote:
> >If mfc0 $12 follows store and the mfc0 is last instruction of a
> >page and fetching the next instruction causes TLB miss, the result
> >of the mfc0 might wrongly contain EXL bit.
>    Hmm, a TLB miss in fetching from KSEG0?!

It'll hit loadable modules which run in the mapped KSEG2/3 spaces.


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