linux-kernel - Re: [stable] PROBLEM: [BISECTED] 2.6.35.5 xen domU panics just after the boot

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Date:	Wed, 29 Sep 2010 08:48:07 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Greg KH <greg@...ah.com>
CC:	Kyle McMartin <kyle@...hat.com>,
	James Dingwall <james.dingwall@...ocs.com>,
	Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	stable@...nel.org
Subject: Re: [stable] PROBLEM: [BISECTED] 2.6.35.5 xen domU panics just	after
 the boot

 On 09/28/2010 11:29 AM, Greg KH wrote:
> On Mon, Sep 27, 2010 at 11:08:43AM -0700, Jeremy Fitzhardinge wrote:
>>  On 09/26/2010 11:13 PM, Greg KH wrote:
>>> On Sun, Sep 26, 2010 at 10:40:44PM -0400, Kyle McMartin wrote:
>>>> On Thu, Sep 23, 2010 at 04:23:55PM +0100, James Dingwall wrote:
>>>>>> I was experiencing the same immediate crash with a null pointer
>>>>>> dereference (log below) on boot with 2.6.35.5.  Reverting
>>>>>> fb412a178502dc498430723b082a932f797e4763 also resolved the problem for
>>>>>> me.
>>>>> Checking the diff from this commit it looks like there is a typo in the patch.  With the following (probably mangled by my client) I get 2.6.35.5 to boot.  Suggest it should be a candidate for .32 and .35 stable trees.
>>>>>
>>>> Greg, a spelling mistake cropped into this patch during 2.6.35.5 that
>>>> James here points out. Adding you to CC since it seems to have missed
>>>> stable 2.6.35.6...
>>>>
>>>> Was in xen-use-percpu-interrupts-for-ipis-and-virqs.patch.
>>> I don't understand, where did the error come from?  Was it in a patch I
>>> applied, or did I mess up some patch?  Is the same problem upstream, and
>>> if not, why not?
>> I don't know.  It looks like an 'x' was deleted due to an editor
>> fat-finger or something.  The original upstream patches were cc:d to
>> stable, so I think you would have got them that way (ie, I don't think I
>> sent them to you specifically).  Is there an opportunity in your
>> workflow where this error could have crept in?  The patches should have
>> been a pretty clean 'git cherry-pick' with no conflicts.
> Sorry, I don't know what happened, using my scripts, it does drop to an
> editor so I can add the "signed-off-by" line, so perhaps I accidentally
> did this in there.
>
> It's now in the -stable queue and I'll push out new releases in a few
> hours.
>

I should have pointed out it is the same in the stable-2.6.32 tree as well.

    J
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