Description of problem: Lots. Details can be found here: http://forums.fedoraforum.org/forum/showthread.php?p=703298 In short - virt-manager, and virt-install have problems creating and starting virtual machines. Version-Release number of selected component (if applicable): [root@localhost data]# xm --version Error: Sub Command --version not found! [root@localhost data]# virt-manager --version usage: virt-manager.py [options] virt-manager.py: error: no such option: --version [root@localhost data]# virt-install --version usage: virt-install [options] virt-install: error: no such option: --version [root@localhost data]# rpm -qa | grep xen kernel-xen-2.6.18-1.2849.fc6 xen-3.0.3-0.1.rc3 kmod-nvidia-xen-1.0.9742-1.2.6.18_1.2849.fc6 xen-devel-3.0.3-0.1.rc3 xen-libs-3.0.3-0.1.rc3 (You guys should _really_ make it easier to determine versioning information on the tools, if you want it in the bug reports.) How reproducible: Reasonably. Additional info: I tried to create a new VM using both virt-install, and virt-manager and each time it came up with : libvir: Xen Daemon error : POST operation failed: (xend.err "Error creating domain: (12, 'Cannot allocate memory')") Failed to create domain test I tried a lot of combinations of disk size, and memory allocated to the VM, from as low as 50MB (RAM) to 10GB (Disk) without any success. I was told a reboot might fix this (what is this - Windows?), and for some reason it did appear to fix it. No VMs existed prior to this testing with Xen. I was then able to create a test VM (domain?) with 500MB for RAM, and a 10GB disk with the XP ISO as the installation medium, using virt-manager's "New" button. It proceeded to show a GUI with the installation process of installing the files required for XP to the disk. It then asked to reboot (in 15 seconds) and did... but the window disappeared. The line in virt-manager for the "test" VM disappeared too. I attempted to re-open the VM by selecting the disk image - this didn't work. I then re-attempted with the /etc/xen/test file and it complained that it was already running. If it was running, then shouldn't it be listed in virt-manager? As a side note - I received this warning at the top of the man page for xm: XXX XXX WARNING: old character encoding and/or character set XXX Running "xm create test" It appeared to start the VM, but no GUI appeared. running virt-manager and selecting the test VM and selecting "Open" results in a black screen.
Created attachment 143481 [details] Screen shot of the problems virt-manager encounters
Created attachment 143484 [details] The output from `xm info` Man pages indicate this information is useful, so I'm adding it to the bug. If there's anything else requried, feel free to ask!
Experiencing the same problem on x86_64 whilst trying to create hvm guests via first command line methods, and then subsequent attempts via virt-manager as well. libvir: Xen Daemon error : POST operation failed: (xend.err "Error creating domain: (12, 'Cannot allocate memory')") Failed to create domain test Will try the reboot suggestion, as mentioned above, and also here: http://www.mail-archive.com/fedora-xen@redhat.com/msg00017.html
There is a workaround for this problem in the forthcoming xen 3.0.3-6.fc6 which is on its way to updates-testing.
Indeed xen-3.0.3-6.fc6 solves the problem for me (-:
The errata is now available in FC6 updates.