Re: [libvirt] Bugfix for RHEL 5.4+ ?? -- Re: Synchronous commands block virsh?
On 01/20/2010 06:18 AM, Andreas Kurz wrote:
Hi all,
Thanks for the information Daniel!
On Wednesday 20 January 2010 11:55:41 Daniel P. Berrange wrote:
> On Mon, Jan 18, 2010 at 01:52:15PM +0100, Andreas Kurz wrote:
>> Hi list,
>>
>> I found this thread from December:
>>
>> http://www.mail-archive.com/libvir-list@redhat.com/msg18595.htm
>>
>> .... that starting with version 0.7.4 libvirtd will no longer block
>> other API calls, which would be extremely useful in HA clusters in
>> combination with live migration.
>>
>> Will this fix find its way into RHEL 5?
>
> The fixes for that are *incredibly* invasive & thus have very high risk
> to stability. So that's not the kind of thing that's likely to be approved
> for a RHEL5 minor update.
I tried to compile libvirtd 0.7.5 for RHEL5 to test it in our lab an ran into
major troubles when it comes to KVM integration .... do you see a realistic
change that such a new Version is compileable on RHEL5 systems?
Hm, interesting. I just compiled libvirt git head (effectively 0.7.6) on my
RHEL-5 box here, and it worked just fine with one minor tweak. The minor
tweak I had to make was to make the qemu driver understand that qemu-kvm
lives in /usr/libexec. That's the following patch:
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index c227fe1..2ba8366 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -797,7 +797,8 @@ qemudCapsInitGuest(virCapsPtr caps,
*/
if (STREQ(info->arch, hostmachine) ||
(STREQ(hostmachine, "x86_64") && STREQ(info->arch,
"i686"))) {
- const char *const kvmbins[] = { "/usr/bin/qemu-kvm", /* Fedora */
+ const char *const kvmbins[] = { "/usr/libexec/qemu-kvm", /* RHEL */
+ "/usr/bin/qemu-kvm", /* Fedora */
"/usr/bin/kvm" }; /* Upstream .spec */
for (i = 0; i < ARRAY_CARDINALITY(kvmbins); ++i) {
If that doesn't fix it for you, what kind of error messages are you getting?
--
Chris Lalancette