Ask Your Question

Revision history [back]

View Xen via libvirt for OpenStack juno
It's not quite clear what OS are you running , in case Ubuntu 14.04.X it would be most probably Qemu patching issue ( view section 3 ) , if your OS is different then verify presence of commit "xen_disk: fix unmapping of persistent grants" in version of Qemu installed.
Per link been provided current qemu releases as of time of writing 11/2014 (including 2.0.2, 2.1.2 and 2.2.0-rc1) do not have this patch included and this will result in Dom0 kernel crashes when creating a Xen Project DomU from OpenStack GUI (horizon).

View Xen via libvirt for OpenStack juno
It's not quite clear what OS are you running , in case Ubuntu 14.04.X it would be most probably Qemu patching issue ( view section 3 ) , if your OS is different then verify presence of commit "xen_disk: fix unmapping of persistent grants" in version of Qemu installed.
Per link been provided current qemu releases as of time of writing 11/2014 (including 2.0.2, 2.1.2 and 2.2.0-rc1) do not have this patch included and this will result in Dom0 kernel crashes when creating a Xen Project DomU from OpenStack GUI (horizon).(horizon). Even on F21 I have 2.1.3. Qemu rebuild per section 3 (link) seems to be needed.

View Xen via libvirt for OpenStack juno
It's not quite clear what OS are you running , in case Ubuntu 14.04.X it would be most probably Qemu patching issue ( view section 3 ) , if your OS is different then verify presence of commit "xen_disk: fix unmapping of persistent grants" in version of Qemu installed.
Per link been provided current qemu releases as of time of writing 11/2014 (including 2.0.2, 2.1.2 and 2.2.0-rc1) do not have this patch included and this will result in Dom0 kernel crashes when creating a Xen Project DomU from OpenStack GUI (horizon). Even on F21 I have 2.1.3. Qemu rebuild per section 3 (link) seems to be needed.needed. I was able reproduced suggested build

wget https://github.com/xinglin/qemu-2.0.2/archive/master.zip

unzip master.zip
cd qemu-2.0.2-master/
apt-get build-dep qemu
./configure
make -j4

On Ubuntu 14.04.2 and F21.

View Xen via libvirt for OpenStack juno
It's not quite clear what OS are you running , in case Ubuntu 14.04.X it would be most probably Qemu patching issue ( view section 3 ) , if your OS is different then verify presence of commit "xen_disk: fix unmapping of persistent grants" in version of Qemu installed.
Per link been provided current qemu releases as of time of writing 11/2014 (including 2.0.2, 2.1.2 and 2.2.0-rc1) do not have this patch included and this will result in Dom0 kernel crashes when creating a Xen Project DomU from OpenStack GUI (horizon). Even on F21 I have 2.1.3. Qemu rebuild per section 3 (link) seems to be needed. I was able reproduced suggested build

wget https://github.com/xinglin/qemu-2.0.2/archive/master.zip

unzip master.zip
cd qemu-2.0.2-master/
apt-get build-dep qemu
./configure
make -j4

On Ubuntu 14.04.2 and F21.
I was able to find required commit only here:-
http://git.qemu.org/?p=qemu.git&a=search&h=af3ff19b48f0bbf3a8bd35c47460358e8c6ae5e5&st=commit&s=xen_disk%3A+fix+unmapping+of+persistent+grants

View Xen via libvirt for OpenStack juno
It's not quite clear what OS are you running , in case Ubuntu 14.04.X it would be most probably Qemu patching issue ( view section 3 ) , if your OS is different then verify presence of commit "xen_disk: fix unmapping of persistent grants" in version of Qemu installed.
Per link been provided current qemu releases as of time of writing 11/2014 (including 2.0.2, 2.1.2 and 2.2.0-rc1) do not have this patch included and this will result in Dom0 kernel crashes when creating a Xen Project DomU from OpenStack GUI (horizon). Even on F21 I have 2.1.3. Qemu rebuild per section 3 (link) seems to be needed. I was able reproduced suggested build

wget https://github.com/xinglin/qemu-2.0.2/archive/master.zip

unzip master.zip
cd qemu-2.0.2-master/
apt-get build-dep qemu
./configure
make -j4

On Ubuntu 14.04.2 and F21.
I was able to find required commit only here:-here (2.2.0-rc2):-
http://git.qemu.org/?p=qemu.git&a=search&h=af3ff19b48f0bbf3a8bd35c47460358e8c6ae5e5&st=commit&s=xen_disk%3A+fix+unmapping+of+persistent+grants

View Xen via libvirt for OpenStack juno
It's not quite clear what OS are you running , in case Ubuntu 14.04.X it would be most probably Qemu patching issue ( view section 3 ) , if your OS is different then verify presence of commit "xen_disk: fix unmapping of persistent grants" in version of Qemu installed.
Per link been provided current qemu releases as of time of writing 11/2014 (including 2.0.2, 2.1.2 and 2.2.0-rc1) do not have this patch included and this will result in Dom0 kernel crashes when creating a Xen Project DomU from OpenStack GUI (horizon). Even on F21 I have 2.1.3. Qemu rebuild per section 3 (link) seems to be needed. I was able reproduced suggested build

wget https://github.com/xinglin/qemu-2.0.2/archive/master.zip

unzip master.zip
cd qemu-2.0.2-master/
apt-get build-dep qemu
./configure
make -j4

On on Ubuntu 14.04.2 and F21.
I was able to find required
F21. Required commit only is here (2.2.0-rc2):-
http://git.qemu.org/?p=qemu.git&a=search&h=af3ff19b48f0bbf3a8bd35c47460358e8c6ae5e5&st=commit&s=xen_disk%3A+fix+unmapping+of+persistent+grants

View Xen via libvirt for OpenStack juno
It's not quite clear what OS are you running , in case Ubuntu 14.04.X it would be most probably Qemu patching issue ( view section 3 ) , if your OS is different then verify presence of commit "xen_disk: fix unmapping of persistent grants" in version of Qemu installed.
Per link been provided current qemu releases as of time of writing 11/2014 (including 2.0.2, 2.1.2 and 2.2.0-rc1) do not have this patch included and this will result in Dom0 kernel crashes when creating a Xen Project DomU from OpenStack GUI (horizon). Even on F21 I have 2.1.3. Qemu rebuild per section 3 (link) seems to be needed. I was able reproduced suggested build

wget https://github.com/xinglin/qemu-2.0.2/archive/master.zip

unzip master.zip
cd qemu-2.0.2-master/
apt-get build-dep qemu
./configure
make -j4

on Ubuntu 14.04.2 and F21. Required commit is here (2.2.0-rc2):-
http://git.qemu.org/?p=qemu.git&a=search&h=af3ff19b48f0bbf3a8bd35c47460358e8c6ae5e5&st=commit&s=xen_disk%3A+fix+unmapping+of+persistent+grants


So another option download 2.2.1 from http://wiki.qemu.org/Download and build from source

 $ cd qemu/
 $ ./configure
 $ make
 $ sudo make install

or on F21 attempt to upgrade via Fedora Rawhide (2.3.1)

View Xen via libvirt for OpenStack juno
and http://lists.xen.org/archives/html/xen-devel/2014-11/msg01266.html

It's not quite clear what OS are you running , in case Ubuntu 14.04.X it would be most probably Qemu patching issue ( view section 3 ) , if your OS is different then verify presence of commit "xen_disk: fix unmapping of persistent grants" in version of Qemu installed.
Per link been provided current qemu releases as of time of writing 11/2014 (including 2.0.2, 2.1.2 and 2.2.0-rc1) do not have this patch included and this will result in Dom0 kernel crashes when creating a Xen Project DomU from OpenStack GUI (horizon). Even on F21 I have 2.1.3. Qemu rebuild per section 3 (link) seems to be needed. I was able reproduced suggested build

wget https://github.com/xinglin/qemu-2.0.2/archive/master.zip

unzip master.zip
cd qemu-2.0.2-master/
apt-get build-dep qemu
./configure
make -j4

on Ubuntu 14.04.2 and F21. Required commit is here (2.2.0-rc2):-
http://git.qemu.org/?p=qemu.git&a=search&h=af3ff19b48f0bbf3a8bd35c47460358e8c6ae5e5&st=commit&s=xen_disk%3A+fix+unmapping+of+persistent+grants
So another option download 2.2.1 from http://wiki.qemu.org/Download and build from source

 $ cd qemu/
 $ ./configure
 $ make
 $ sudo make install

or on F21 attempt to upgrade via Fedora Rawhide (2.3.1)

View Xen via libvirt for OpenStack juno
and http://lists.xen.org/archives/html/xen-devel/2014-11/msg01266.html
I also focus your attention on Xen 4.4 install on Ubuntu 14.04 . It's supposed to be done from source:-
http://wiki.sebeka.k12.mn.us/virt:xen_4.4_14.04

It's not quite clear what OS are you running , in case Ubuntu 14.04.X it would be most probably Qemu patching issue ( view section 3 ) , if your OS is different then verify presence of commit "xen_disk: fix unmapping of persistent grants" in version of Qemu installed.
Per link been provided current qemu releases as of time of writing 11/2014 (including 2.0.2, 2.1.2 and 2.2.0-rc1) do not have this patch included and this will result in Dom0 kernel crashes when creating a Xen Project DomU from OpenStack GUI (horizon). Even on F21 I have 2.1.3. Qemu rebuild per section 3 (link) seems to be needed. I was able reproduced suggested build

wget https://github.com/xinglin/qemu-2.0.2/archive/master.zip

unzip master.zip
cd qemu-2.0.2-master/
apt-get build-dep qemu
./configure
make -j4

on Ubuntu 14.04.2 and F21. Required commit is here (2.2.0-rc2):-
http://git.qemu.org/?p=qemu.git&a=search&h=af3ff19b48f0bbf3a8bd35c47460358e8c6ae5e5&st=commit&s=xen_disk%3A+fix+unmapping+of+persistent+grants
So another option download 2.2.1 from http://wiki.qemu.org/Download and build from source
http://git.qemu.org/?p=qemu.git&a=search&h=af3ff19b48f0bbf3a8bd35c47460358e8c6ae5e5&st=commit&

 $ cd qemu/
 $ ./configure
 $ make
 $ sudo make install

or on F21 attempt to upgrade via Fedora Rawhide (2.3.1)

View Xen via libvirt for OpenStack juno
and http://lists.xen.org/archives/html/xen-devel/2014-11/msg01266.html
I also focus your attention on Xen 4.4 install on Ubuntu 14.04 . It's supposed to be done from source:-
http://wiki.sebeka.k12.mn.us/virt:xen_4.4_14.04
It's not quite clear what OS are you running , in case Ubuntu 14.04.X it would be most probably Qemu patching issue ( view section 3 ) , if your OS is different then verify presence of commit "xen_disk: fix unmapping of persistent grants" in version of Qemu installed.
Per link been provided current qemu releases as of time of writing 11/2014 (including 2.0.2, 2.1.2 and 2.2.0-rc1) do not have this patch included and this will result in Dom0 kernel crashes when creating a Xen Project DomU from OpenStack GUI (horizon). Even on F21 I have 2.1.3. Qemu rebuild per section 3 (link) seems to be needed. I was able reproduced suggested build

wget https://github.com/xinglin/qemu-2.0.2/archive/master.zip

unzip master.zip
cd qemu-2.0.2-master/
apt-get build-dep qemu
./configure
make -j4

on Ubuntu 14.04.2 and F21. Required commit is here (2.2.0-rc2):-
http://git.qemu.org/?p=qemu.git&a=search&h=af3ff19b48f0bbf3a8bd35c47460358e8c6ae5e5&st=commit&
(2.2.1):-
http://git.qemu.org/?p=qemu.git&a=search&h=2001e197cf68a4f262a5a06e0ffe6dce3c2e2a7b&st=commit&s=xen_disk%3A+fix+unmapping+of+persistent+grants