From: "William M. Quarles" <quarlewm@jmu.edu>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [Fwd: Re: Kernel 2.4 CPU Arch issues]
Date: Sun, 20 Jul 2003 20:25:10 -0400 [thread overview]
Message-ID: <3F1B32E6.4020107@jmu.edu> (raw)
In-Reply-To: <1058745605.6299.4.camel@dhcp22.swansea.linux.org.uk>
Alan Cox wrote:
> On Llu, 2003-07-21 at 00:29, William M. Quarles wrote:
>
>>Well, you separated the Pentium and Pentium-MMX. It's the exact same
>>difference between Pentium Pro and Pentium-II: MMX technology. That's
>>the point.
>
>
> This makes no difference to the kernel. Splitting PPro would only make
> sense for one reason. The Pentium Pro needs store barriers on
> spin_unlock and friends, the PII and later do not. However if this was
> done you'd also want to check for PPro boots with a PII kernel and panic
> which isn't currently done
>
Well, wouldn't changing the gcc -march option and/or adding -mcpu
options for the various processors in the Makefile make a difference, as
the patchfile suggests?
--
William M. Quarles
quarlewm@jmu.edu
wquarles@bucknell.edu
walrus@bellsouth.net
next prev parent reply other threads:[~2003-07-21 0:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-20 23:29 [Fwd: Re: Kernel 2.4 CPU Arch issues] William M. Quarles
2003-07-21 0:00 ` Alan Cox
2003-07-21 0:25 ` William M. Quarles [this message]
2003-07-21 6:39 ` Alan Cox
2003-07-21 19:23 ` jw schultz
2003-07-23 1:17 ` J.A. Magallon
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