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"pygrub uses cached and eventually outdated grub.conf, kernel and initrd": https://bugzilla.redhat.com/show_bug.cgi?id=466681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