2.6.31-git5 kernel boot hangs on powerpc

[Tejun Heo]

Tejun Heo wrote:
>> One workaround i have found for this problem is to disable IPv6.
>> With IPv6 disabled the machine boots OK. Till a reliable solution
>> is available for this issue, i will keep IPv6 disabled in my configs.
> 
> I'm think it's most likely caused by some code accessing invalid
> percpu address.  I'm currently writing up access validator.  Should be
> done in several hours.  So, ipv6 it is.  I couldn't reproduce your
> problem here.  I'll give ipv6 a shot.

Can you please apply the attached patch and see whether anything
interesting shows up in the kernel log?

Thanks.

-- 
tejun
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