Re: ZONE_PADDING wastes 4 bytes of the new cacheline

From: DaMouse (damouse_at_gmail.com)
Date: 10/21/04

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    Date:	Thu, 21 Oct 2004 21:21:55 +0100
To: LKML <linux-kernel@vger.kernel.org>

    On Thu, 21 Oct 2004 13:54:41 -0500 (CDT), Adam Heath <doogie@debian.org> wrote:
    > On Thu, 21 Oct 2004, Andrea Arcangeli wrote:
    >
    > > On Thu, Oct 21, 2004 at 12:51:18PM +0200, Mikael Pettersson wrote:
    > > > Have you verified that? GCCs up to and including 2.95.3 and
    > > > early versions of 2.96 miscompiled the kernel when spinlocks
    > > > where empty structs on UP. I.e., you might not get a compile-time
    > > > error but runtime corruption instead.
    > >
    > > peraphs we should add a check on the compiler and force people to use
    > > gcc >= 3?
    > >
    > > Otherwise adding an #ifdef will fix 2.95, just like the spinlock does in
    > > UP.
    > >
    > > btw, the only machine where I still have gcc 2.95.3 is not uptodate
    > > enough to run 2.6 regardless of the fact 2.6 could compile on such
    > > machine or not.
    >
    > So compile a 2.6 kernel on the machine with 2.95.3 for another machine.
    >

    I think what he was referring to was that most machines with 2.95.x
    have older kernels anyway.

    -DaMouse 

    -- 
I know I broke SOMETHING but its there fault for not fixing it before me
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