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thus Farkas Levente spake:
> On 03/22/2010 12:03 PM, Timo Schoeler wrote:
>> Hi list,
>>
>> due to the necessity of having a patched KVM running, I build some new
>> RPMs. However, only
>>
>> kmod-kvm-83-105.27.x86_64.rpm
>>
>> is important to replace the 'original' one as it's the only package that
>> contains the patch. I didn't rename the packages, though, hopefully in
>> order not to break the upgrade path provided to us.
>>
>> The patch adresses following problem:
>>
>> 'Fix a race condition where qemu finds that there are not enough virtio
>> ring buffers available and the guest make more buffers available before
>> qemu can enable notifications.' [0], the thread startet as 'network
>> shutdown under heavy load' [1].
>>
>> KVM already contains the fix (since February 19th, IIRC), CentOS'
>> packages doesn't.
>>
>> The RPMs can be found here:
>>
>> http://www.riscworks.net/CentOS/KVM/fix-virt-io-ring-buffer-race/
>
> does it have an upstream (redhat) bugzilla entry?
> it'd be better if they fix it...
Sure, but we had the problem that it constantly crashed several
customer's domUs, so we had to fix it ASAP. Just wanted to make it more
convenient for people that have the same problem and can _not_ wait
until it's fixed upstream.
Timo
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