From: Dave Jones <davej@suse.de>
To: S W <egberts@yahoo.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.4.19-pre2 Cyrix III SEGFAULT (Cyrix II redux?)
Date: Sat, 16 Mar 2002 20:42:28 +0100 [thread overview]
Message-ID: <20020316204228.B15296@suse.de> (raw)
In-Reply-To: <20020316180705.34916.qmail@web10506.mail.yahoo.com>
In-Reply-To: <20020316180705.34916.qmail@web10506.mail.yahoo.com>
On Sat, Mar 16, 2002 at 10:07:05AM -0800, S W wrote:
> But I recalled Linux 2.2 having a bug fix for broken
> L2 cache in Cyrix II.
The cache itself isn't broken. Reporting of the size of it is.
> So, it got me thinking again...
> (did Cyrix fix this L2 cache in certain subsequential
> core?)
The bug is potentially in all cores with cpuid 670->68F
If you have it, and you're not running a kernel with the
fix you'll see you have a 16MB cache. If you run a kernel
with the fix, you'll have the correct size (64KB)
> Does anyone recall where exactly are the Cyrix II L2
> cache bug fix in the kernelso that I can experiement
> them toward the Cyrix III?
arch/i386/kernel/setup.c display_cacheinfo()
--
| Dave Jones. http://www.codemonkey.org.uk
| SuSE Labs
next prev parent reply other threads:[~2002-03-16 19:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-16 18:07 2.4.19-pre2 Cyrix III SEGFAULT (Cyrix II redux?) S W
2002-03-16 19:42 ` Dave Jones [this message]
2002-03-16 21:01 ` Alan Cox
2002-03-16 20:50 ` Dave Jones
2002-03-17 4:22 ` 2.4.19-pre2 CentaurHauls VIA Samuel 2 stepping 2 SEGFAULT (RESOLVED) S W
2002-03-17 13:37 ` Dave Jones
2002-03-16 20:50 ` 2.4.19-pre2 Cyrix III SEGFAULT (Cyrix II redux?) Alan Cox
2002-03-19 11:46 ` Padraig Brady
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