On Wed, Mar 31, 2010 at 06:38:27PM +0300, Pasi Kärkkäinen wrote: > Hello, > > RHEL 5.5 has been released, and it contains many Xen related fixes. > > Here's the most important of the them.. fixing a dom0 caching bug which > could cause domU disk corruption when the domU disk was accessed from dom0 > after the domU was shutdown. Most people noticed this bug when pygrub > used wrong (cached) information. > > "pygrub uses cached and eventually outdated grub.conf, kernel and initrd": > https://bugzilla.redhat.com/show_bug.cgi?id=466681 > > > And some more: > > "Xen hypervisor doesn't mask xsave feature from the guest; Fedora 11 PV domU kernel crashes": > https://bugzilla.redhat.com/show_bug.cgi?id=524719 > > "[RHEL-5 Xen]: F-11 Xen 64-bit domU cannot be started with > 2047MB of memory": > https://bugzilla.redhat.com/show_bug.cgi?id=502826 > > " Boot hang when installing HVM DomU": > https://bugzilla.redhat.com/show_bug.cgi?id=524052 > > "[RHEL5 Xen]: PV guest crash on poweroff": > https://bugzilla.redhat.com/show_bug.cgi?id=540811 > > "[RHEL5 Xen]: Cpu frequency scaling is broken on Intel": > https://bugzilla.redhat.com/show_bug.cgi?id=553324 > > > > RHEL 5.5 kernel changelog: > http://rhn.redhat.com/errata/RHSA-2010-0178.html > > > Work-in-progress (Not yet in 5.5): > > "Grub2 guest support for RHEL5 Xen pygrub": > https://bugzilla.redhat.com/show_bug.cgi?id=577511 > The bz above has a patch that provides working pygrub grub2 support for EL 5.5. I tested it with Ubuntu 10.04 Xen PV guest. Oh, and RHEL/CentOS 5.5 has pygrub ext4 support included, so for example Fedora 12 and Fedora 13 guests can have ext4 /boot now. -- Pasi