linux-kernel - Re: Regression introduced in v3.2.12 stable

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Message-ID: <4F6B9F64.5030905@canonical.com>
Date:	Thu, 22 Mar 2012 17:53:40 -0400
From:	Joseph Salisbury <joseph.salisbury@...onical.com>
To:	Greg KH <greg@...ah.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Regression introduced in v3.2.12 stable

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On 03/22/2012 05:52 PM, Greg KH wrote:
> On Thu, Mar 22, 2012 at 05:43:42PM -0400, Joseph Salisbury wrote:
>> On 03/22/2012 05:26 PM, Greg KH wrote:
>>> On Thu, Mar 22, 2012 at 03:15:03PM -0400, Joseph Salisbury
>>> wrote:
>>>> I figured I'd send a heads up regarding a possible regression
>>>> in v3.2.12 stable.  The issue prevents systems from booting.
>>>> 
>>>> There have been a few bugs[0] reported against the Ubuntu
>>>> kernel, which was recently rebased to 3.2.12.  We're in the
>>>> process of bisecting now and will post an update..
>>> 
>>> What specifically happens here when the system does not boot?
>>> Any error message?  Are you sure this isn't the known pci
>>> express issue showing up here?
>>> 
>>> Can you run 'git bisect' to trace it down to a specific patch
>>> please?
>>> 
>>> thanks,
>>> 
>>> greg k-h
>> 
>> Hi Greg,
>> 
>> Thanks for the response.
>> 
>> We did some bisecting/testing and identified the bad commit in
>> 3.2.12 as the following:
>> 
>> f043ddb60c84ea64a23b755004572afe922e653c PCI: ignore pre-1.1
>> ASPM quirking when ASPM is disabled
> 
> Yup, that's the known problem one.  But, note that it does solve
> other people's problems at the moment, so you can't just ignore it
> :)
> 
> greg k-h

Thanks for the info, Greg.  I'll keep up to date on the other thread.
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