On 03/22/2010 12:12 PM, Timo Schoeler wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > 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. then at least and src.rpm would be useful... -- Levente "Si vis pacem para bellum!"