Subject: Re: kernels built with "-march=..." hang?
To: Martin Husemann <martin@duskware.de>
From: Jaromir Dolecek <jdolecek@NetBSD.org>
List: port-i386
Date: 11/07/2005 21:50:58
On Mon, Nov 07, 2005 at 09:18:35PM +0100, Martin Husemann wrote:
> On Mon, Nov 07, 2005 at 02:08:53PM -0600, John D. Baker wrote:
> > Would they likely cause a problem for userland/packages too?
> 
> Well, it has never been fully analyzed, so it's hard to tell for sure.
> If it realy is an illegal instruction (i.e. something >= PII) then userland
> would just core dump (and so you'll notice).

This kind of miscompilation if fairly often - e.g. I've seen
numerous PHP bugs reports by Gentoo Linux users, which vanished after
the submitter recompiled without -march flags.

Jaromir
-- 
Jaromir Dolecek <jdolecek@NetBSD.org>            http://www.NetBSD.cz/
-=- We can walk our road together if our goals are all the same;     -=-
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