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From: "William M. Quarles" <>
To: Alan Cox <>
Cc: Linux Kernel Mailing List <>
Subject: Re: [Fwd: Re: Kernel 2.4 CPU Arch issues]
Date: Sun, 20 Jul 2003 20:25:10 -0400	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

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

  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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