On Sun, 2009-04-19 at 14:48 +0300, Avi Kivity wrote: > Antoine Martin wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA512 > > > > Wireshark was showing a huge amount of invalid packets (wrong checksum) > > - - that was the cause of the slowdown. > > Simply rebooting the host into 2.6.28.9 fixed *everything*, regardless > > of whether the guests use virtio or ne2k_pci/etc. > > The guests are still running 2.6.29.1, but I am not likely to try that > > release again on the host anytime soon! Ouch! > > > > > Strange, no significant tun changes between .28 and .29. Sounds to me like it's this: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=2f181855a0 davem said he was queueing up for stable, but it's not in yet: http://kerneltrap.org/mailarchive/linux-netdev/2009/3/30/5337934 I'll check that it's in the queue. Cheers, Mark. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html