linux-kernel - Re: [git pull] sparseirq / irq updates for v2.6.29

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Message-ID: <alpine.LFD.2.00.0812281510370.3082@localhost.localdomain>
Date:	Sun, 28 Dec 2008 15:11:40 -0800 (PST)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Ingo Molnar <mingo@...e.hu>
cc:	KOSAKI Motohiro <kosaki.motohiro@...il.com>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>
Subject: Re: [git pull] sparseirq / irq updates for v2.6.29



On Sat, 27 Dec 2008, Ingo Molnar wrote:
> 
> well, it's a regression that is being worked on: certain buggy GCC 
> versions (unclear yet what scope but quite rare it appears) optimize out 
> __weak function calls incorrectly.

We've hit that kind of bug before, haven't we? I think the solution last 
time was to make sure that the __weak function is never in the same 
compilation unit as a call to it.

			Linus
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