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Date: Thu, 9 Feb 2012 09:48:57 -0500
From: Don Zickus <dzickus@redhat.com>
Subject: Re: [PATCH] x86, kdump: No need to disable ioapic in crash path
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To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: x86@kernel.org, kexec-list <kexec@lists.infradead.org>, LKML <linux-kernel@vger.kernel.org>, Vivek Goyal <vgoyal@redhat.com>

On Wed, Feb 08, 2012 at 02:55:14PM -0800, Eric W. Biederman wrote:
> > I ran lkdtm by panic'ing in the interrupt handle thus leaving device
> > interrupt un-ack'd and the apic might have been un-ack'd too (jprobes
> > hooked in at do_IRQ).  3 out 3 times the second kernel came up on my core2
> > quad.
> 
> That sounds like more than enough basic testing for me.  Document your
> testing in a patch description and let's get the unnecessary local apic
> and ioapic stomping removed from the kexec on panic path.
> 
> There were bugs.  We deleted the code that had them.  The bugs are gone
> and there are no new problems goes over very well in my book.

Great.  Thanks.  I'll put together the patch.

Cheers,
Don

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