Message-ID: <4958120F.4060804@zytor.com>
Date: Sun, 28 Dec 2008 15:55:59 -0800
From: "H. Peter Anvin" <hpa@zytor.com>
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To: Ingo Molnar <mingo@elte.hu>
CC: Linus Torvalds <torvalds@linux-foundation.org>,
       KOSAKI Motohiro <kosaki.motohiro@gmail.com>,
       linux-kernel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>,
       Thomas Gleixner <tglx@linutronix.de>,
       Jesse Barnes <jbarnes@virtuousgeek.org>,
       Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Subject: Re: [git pull] sparseirq / irq updates for v2.6.29
References: <20081225160741.GA14486@elte.hu> <20081227133240.GA8716@elte.hu> <2f11576a0812270927taef068fobbad997dc5e5aacf@mail.gmail.com> <20081227173839.GA9793@elte.hu> <alpine.LFD.2.00.0812281510370.3082@localhost.localdomain> <20081228232729.GA2158@elte.hu>
In-Reply-To: <20081228232729.GA2158@elte.hu>
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Ingo Molnar wrote:
> 
> ok, agreed. I was hoping for some more generic workaround but nothing 
> seemed to keep gcc from inlining such functions.
> 

Other than blacklisting those gcc versions.  It's pretty easy to
understand how a bug like that could creep in, since one of the main
improvements of the early gcc4 series was better inlining as an
optimization.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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