linux-kernel - Re: [BUG] intr_remap: Simplify the code further

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Message-ID: <AANLkTi=Ct+NXV_pvPNbn+j-j=hHXmUxaqa=XEaga=+Pq@mail.gmail.com>
Date:	Fri, 29 Oct 2010 19:55:49 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Russ Anderson <rja@....com>
Cc:	Suresh Siddha <suresh.b.siddha@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>,
	David Woodhouse <dwmw2@...radead.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>, rja@...ricas.sgi.com
Subject: Re: [BUG] intr_remap: Simplify the code further

On Fri, Oct 29, 2010 at 6:50 PM, Russ Anderson <rja@....com> wrote:
> On Fri, Oct 29, 2010 at 05:37:42PM -0700, Suresh Siddha wrote:
>> On Fri, 2010-10-29 at 15:22 -0700, Russ Anderson wrote:
>> > There is a regression that is causing a NULL pointer dereference
>> > in free_irte when shutting down xpc.  git bisect narrowed it down
>> > to git commit d585d060b42bd36f6f0b23ff327d3b91f80c7139, which
>> > changed free_irte().  Reverse applying the patch fixes the problem.
>> >
>>
>> Russ, Is this with !CONFIG_SPARSE_IRQ?
>
>
> CONFIG_SPARSE_IRQ=y
>

can you try attached patch?

Yinghai

View attachment "fix_uv_free_irte.patch" of type "text/x-patch" (469 bytes)