[Maverick] SRU: Reboot of linux-virtual hangs on EC2

[Tim Gardner]

On 03/02/2011 08:13 AM, Stefan Bader wrote:
> On 03/02/2011 03:57 PM, Stefan Bader wrote:
>> SRU Justification:
>>
>> Impact: On reboot or shutdown the current Xen code does try to stop other
>> CPUs. However the IPI communication is disabled already at that point.
>> So issuing a reboot or shutdown from within an instance with multiple
>> vcpus hangs.
>>
>> Fix: Cherry pick of an upstream patch (added around 2.6.37) removes the
>> attempt to stop other CPUs.
>>
>> Testcase: From within an EC2 instance, call "sudo reboot". Instance never
>> comes up again. With the patch applied it does.
>>
>> -Stefan
>
> Forgot to mention: this is also on the 2.6.35-longterm tree.
>

Acked-by: Tim Gardner <tim.gardner at canonical.com>

-- 
Tim Gardner tim.gardner at canonical.com