Bug#649304: <processor.nocst=1> needed for 686-pae kernels

[Jonathan Nieder <jrnieder@gmail.com>]

forcemerge 627019 649304
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Hi Will,

Will Set wrote:

> [Subject: <processor.nocst=1> needed for 686-pae kernels]

You haven't described the actual symptoms here.  I assume that they
are segfaults and hangs, as before?

> I first noticed this issue using 2.6.38-rc5-686 and 2.6.38-rc6-686. 
> Although, 2.6.38-1-686 worked out of the box, the regession showed again 
> using 2.6.39-rcX kernels,
> and continues to show using all 686-pae kernels.
> Adding <processor.nocst=1> to the kernel commandline works around the issue.
>
> Using 486 kernels is another workaround to this issue.

Please send full "dmesg" output from booting up and reproducing the
bug.  Attaching "acpidump" output would be useful, too.

> see: #627019  linux-image-2.6.39-rc7-686-pae: several kernel hangs ... 

Thanks for filing a separate bug so we can keep track of the
information about each machine separately.  I'm marking the two
reports as related for easy reference.

Thanks and hope that helps,
Jonathan