linux-kernel - Re: Kernel Bug in 2.4.35 when compiled gcc>=4.2.0 and -march=c3

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Message-ID: <20070807081229.GA17889@1wt.eu>
Date:	Tue, 7 Aug 2007 10:12:29 +0200
From:	Willy Tarreau <w@....eu>
To:	Axel Reinhold <axel@...akout.de>
Cc:	Segher Boessenkool <segher@...nel.crashing.org>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org
Subject: Re: Kernel Bug in 2.4.35 when compiled gcc>=4.2.0 and -march=c3

On Tue, Aug 07, 2007 at 07:04:20AM +0200, Axel Reinhold wrote:
> According to Willy Tarreau:
> > > >Well, top-level assembly is usually nasty.  Setting the section in the
> > > >assembly statement as you said is probably the only thing you *can* do.
> > > 
> 
> I do not understand the details of the discussion, but isn't the
> fact, that there is more than one way for the compiler to produce
> "correct" code of the nasty statements, also a "timebomb" for
> other projects - especially for Linux 2.6?

no because 2.6 uses quite a different method.

Willy

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