[SeaBIOS] [PATCH 1/3] Halt if number of started cpus are more then expected

Igor Mammedov imammedo at redhat.com
Tue Mar 13 10:30:05 CET 2012


On 03/13/2012 01:08 AM, Peter Stuge wrote:
> Igor Mammedov wrote:
>>> not even sure we should halt at all. May be warn the user and continue
>>
>> BIOSes usually stop in case of error
>
> That doesn't mean that it's a good idea.
You might be right, however I'd call it expected behavior.

Imagine VM that need processing power of several cpus to provide adequate
service. During its runtime several cpus were hot-plugged and it worked
like a charm. Then during scheduled maintenance VM was soft-rebooted and
it seems that VM is fully up (nobody noticed that cpus # are less then
expected) and promoted to servicing usual load.
If I were admin of this vm, I'd rather fix easy to spot problem during
maintenance time than find out later that VM is under-powered and deal
with angry customers.

>
>
> //Peter

-- 
-----
  Igor



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