Re: [CentOS-virt] RHEL 5.5 Xen fixes

On Wed, Mar 31, 2010 at 03:43:38PM -0400, Grant McWilliams wrote:

On Wed, Mar 31, 2010 at 11:38 AM, Pasi KÀrkkÀinen <[1]pasik@iki.fi> 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 "pygrub uses cached and eventually outdated grub.conf, kernel and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":
 [2]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":
 [3]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":
 [4]https://bugzilla.redhat.com/show_bug.cgi?id=502826

 " Boot hang when installing HVM DomU":
 [5]https://bugzilla.redhat.com/show_bug.cgi?id=524052

 "[RHEL5 Xen]: PV guest crash on poweroff":
 [6]https://bugzilla.redhat.com/show_bug.cgi?id=540811

 "[RHEL5 Xen]: Cpu frequency scaling is broken on Intel":
 [7]https://bugzilla.redhat.com/show_bug.cgi?id=553324

 RHEL 5.5 kernel changelog:
 [8]http://rhn.redhat.com/errata/RHSA-2010-0178.html

 Work-in-progress (Not yet in 5.5):

 "Grub2 guest support for RHEL5 Xen pygrub":
 [9]https://bugzilla.redhat.com/show_bug.cgi?id=577511

 -- Pasi

Are these changes in the kernel or changes to the installed Xen? I'm wondering if this effects anyone using Xen 3.4 or newer.

I think they're mixed.. you need to go through the bugzillas to figure out. (and possibly compare to the kernel changelog above).

-- Pasi