Re: [stable] Boot failure with 2.6.27.46 on Xeon E5620 (Westmere EP)

[Suresh Siddha <suresh.b.siddha@intel.com>]

On Tue, 2010-05-25 at 13:51 -0700, Greg KH wrote:
> On Tue, May 25, 2010 at 04:32:16PM -0400, "S.Çağlar Onur" wrote:
> > Hi Greg,
> > 
> > On May 25, 2010, at 11:53 AM, Greg KH wrote:
> > 
> > > On Tue, May 25, 2010 at 11:10:28AM -0400, "S.Çağlar Onur" wrote:
> > >> Hi,
> > >> 
> > >> We are observing boot failures [1] & [2] on some of our servers (Dell
> > >> r410) with 2.6.27-stable kernels. I found following commit in upstream
> > >> tree via a quick search (but I haven't tried it yet) so I don't know
> > >> whether I'm on the right track or not. 
> > >> 
> > >> Please let me know if anything else is needed...
> > > 
> > > Has any .27 kernel worked on these machines?  If so, can you narrow it
> > > down to the patch that caused the problem?
> > 
> > I don't think any .27 kernel worked on those machines before. But in
> > any case I'll try (I don't have a physical access to those machines as
> > they are located in China) an older .27 release to see.
> 
> Ok, so it isn't a regression, which is what I want to know.
> 
> New hardware like this, probably will only work on newer kernel
> versions, so please use those instead :)

I can't think of any known issues in 2.6.27 that can lead to this kind
of boot failure on WSM-EP. Caglar, It will be nice if you can do git
bisect between working and non-working kernels.

thanks,
suresh