From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [patch 1/2] genirq: Run irq handlers with interrupts disabled
Date: Fri, 2 Apr 2010 22:42:51 +0200 (CEST)
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References: <20100326000325.917127328@linutronix.de> <20100326000405.758579387@linutronix.de> <20100326061310.GV20695@one.firstfloor.org> <alpine.LFD.2.00.1003261224070.3147@localhost.localdomain> <20100330053325.GL20695@one.firstfloor.org>
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To: Pavel Machek <pavel@ucw.cz>
Cc: Andi Kleen <andi@firstfloor.org>, Linus Torvalds <torvalds@osdl.org>, LKML <linux-kernel@vger.kernel.org>, linux-arch@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>, Ingo Molnar <mingo@elte.hu>, Peter Zijlstra <peterz@infradead.org>, Alan Cox <alan@lxorguk.ukuu.org.uk>, David Miller <davem@davemloft.net>, Greg Kroah-Hartman <gregkh@suse.de>, Arnaldo Carvalho de Melo <acme@redhat.com>

On Fri, 2 Apr 2010, Pavel Machek wrote:

> On Wed 2010-03-31 13:16:37, Thomas Gleixner wrote:
> > On Tue, 30 Mar 2010, Andi Kleen wrote:
> > 
> > > > Why not simply force IRQF_DISABLED for all MSI interrupts. That still
> > > > allows nesting for non MSI ones, but it limits the chance of throwing
> > > > up reasonably well. That's a two liner.
> > > > 
> > > > Can you please test whether it resolves the issue at hand ?
> > > 
> > > Sorry for the late answer. Got confirmation that this patch
> > > fixes the test case. Thanks.
> > 
> > Ok, I'll push it linus wards and cc stable. I think thats the least
> > intrusive safe bet we can have right now.
> 
> stable? I'd say thats way too intrusive for -stable...

So we better let the possible stack overruns unaddressed ?

Thanks,

	tglx