linux-kernel - Re: [git pull] core/percpu for v2.6.27

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Message-ID: <487D15FC.1060300@sgi.com>
Date:	Tue, 15 Jul 2008 14:26:20 -0700
From:	Mike Travis <travis@....com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Jeremy Fitzhardinge <jeremy@...p.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>, Jack Steiner <steiner@....com>
Subject: Re: [git pull] core/percpu for v2.6.27

Ingo Molnar wrote:

...
> 
> in hindsight core/percpu indeed looks unfinished and direction-less 
> without core/percpu-zerobased - but the latter is not stable yet.
> 
> 	Ingo

Well it's very stable using gcc-4.2.4.  The earlier problems came about
using gcc-4.2.0 and has yet to be determined what exactly went wrong.
(And I need to install gcc-3.2 to complete the build/test QA.)

Btw, is there a list of "bad" gcc's for kernel building?  Or better yet,
can the Makefile script provide a warning when a known "bad" gcc is
being used to compile the kernel?  I seem to recall that Peter provided
this list:

	4.2.3 is fine; he was using 4.2.0 before, and as far as I know,
        4.2.0 and 4.2.1 are known broken for the kernel.

Thanks!
Mike
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