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Date: Wed, 15 Apr 2009 21:47:05 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Yinghai Lu <yinghai@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>, "H. Peter Anvin" <hpa@zytor.com>,
       Andrew Morton <akpm@linux-foundation.org>,
       Joerg Roedel <joerg.roedel@amd.com>,
       "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
       stable@kernel.org, Pekka Enberg <penberg@cs.helsinki.fi>
Subject: Re: [PATCH] x86: used used_vectors in init_IRQ
Message-ID: <20090415194705.GA8290@elte.hu>
References: <49E62DFD.6010904@kernel.org> <20090415192550.GA27004@elte.hu> <49E636F2.7030902@kernel.org> <20090415193827.GB32675@elte.hu> <49E6397D.1020201@kernel.org>
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* Yinghai Lu <yinghai@kernel.org> wrote:

> Ingo Molnar wrote:
> > * Yinghai Lu <yinghai@kernel.org> wrote:
> > 
> >> Ingo Molnar wrote:
> >>
> >>> Note, i removed the -stable tag because i dont think .29 nor 
> >>> .30-rc2 is affected. Your patch to irqinit*.c (and the later 
> >>> unification by Pekka) is something still pending in the 
> >>> perfcounters and x86 trees, queued for .31.
> >> not sure .29, but it seems we need this for 2.6.30
> >>
> 
> you are right...
> 
> in trap_init with linus tree
> 
> still have
> #ifdef CONFIG_X86_64
>         set_bit(IA32_SYSCALL_VECTOR, used_vectors);
> #else
>         set_bit(SYSCALL_VECTOR, used_vectors);
> #endif
> 
> 
> so one patch (merge irqinit_32/64) in tip for .31 expose that bug.
> 
> aka we don't back port ...

ok, good!

	Ingo