[Bug 1131097] [NEW] virsh snapshot-create is very slow independend of domain state
Public bug reported: virsh snapshot-create domainname snapfile.xml, also virsh snapshot-remove domainname snapshotname needs reel time more then 30min. Some Details. The Guest is a qemu/kvm guest with Windows2008R2, and Virtio-drivern on a 50GByte qcow2 Image, with cache=writeback and 4 virtual CPUs and 6GByte Memory The Host is a i7-920 with 24GByte Memory, the Disk where the qcow2 image resides is local with software raid1 and a lvm Partition I get native 100MByte/s to and from the harddisc through lvm and software raid I understand the a snapshot in qcow2-file wirtes flushes the disccache, writes a file, writes the xml-description and writes the mainmemory and pause the machine in this time. the resulting rate of writing the mainmemory is 6GB/30min 3,3MB/s I thought a snapshot in shut off state, should not write the mainmemory of the guest in the snapshot, because there is no valid mainmemory, but i think that assumption failed - the time of snapshot in running / shut off state is always the same. the work-around perhaps can be the usage of the option --disk-only in the shut off state, but i didn't understand why the normal snapshot needs so long. At my assumption it would consume 2min real time max. one detail i have seen, is that the guest sometimes ignores the shut- down command. Perhaps the APC in the windows server is the cause of it, that pause/suspend state isn't reached, and the command is repeated until the snapshot can really perform. ** Affects: libvirt (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1131097 Title: virsh snapshot-create is very slow independend of domain state To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1131097/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 780657] Re: FreeBSD Hangs on Boot
I can also confirm this solution and use it, in the moment. For me is it solved -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/780657 Title: FreeBSD Hangs on Boot -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 780657] Re: FreeBSD Hangs on Boot
I can also confirm this solution and use it, in the moment. For me is it solved -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/780657 Title: FreeBSD Hangs on Boot -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 780657] Re: FreeBSD Hangs on Boot
that was clear, but when comes the patch to the Ubuntu kernel ? With the next 2.6.38.x with x 8 ? Im able to compile a kernel with the patch and use it on a productive system, but I didn't wish to do that without any testing environment to find other for me unknown dependencies -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/780657 Title: FreeBSD Hangs on Boot -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 780657] Re: FreeBSD Hangs on Boot
that was clear, but when comes the patch to the Ubuntu kernel ? With the next 2.6.38.x with x 8 ? Im able to compile a kernel with the patch and use it on a productive system, but I didn't wish to do that without any testing environment to find other for me unknown dependencies -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/780657 Title: FreeBSD Hangs on Boot -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 780657] Re: FreeBSD Hangs on Boot
Yes it looks like the same. There is a comment on FreeBSD ACPI Mailing List for AMD CPUs, where the CPU Turbo Mode freeze native BSD Systems. Perhaps that correspondends with this bug, because it would first recognized on AMD Systems. If you prevent the boot menu of FreeBSD the BSD guests runs without any problems, or you are fast enough to hit the option or enter before the issue comes, than also BSD runs fine as KVM guest. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/780657 Title: FreeBSD Hangs on Boot -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 780657] Re: FreeBSD Hangs on Boot
Yes it looks like the same. There is a comment on FreeBSD ACPI Mailing List for AMD CPUs, where the CPU Turbo Mode freeze native BSD Systems. Perhaps that correspondends with this bug, because it would first recognized on AMD Systems. If you prevent the boot menu of FreeBSD the BSD guests runs without any problems, or you are fast enough to hit the option or enter before the issue comes, than also BSD runs fine as KVM guest. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/780657 Title: FreeBSD Hangs on Boot -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 780657] [NEW] FreeBSD Hangs on Boot
Public bug reported: Binary package hint: qemu-kvm On 11.04 Natty, with the Kernel 2.6.38.8-42-server, with kvm 0.14 on an intel i970 hangs FreeBSD on Boot, like described in http://www.mail-archive.com/kvm@vger.kernel.org/msg50722.html and following mails. The Solution in the kvm.git seams to be working. The issue is not on 10.10 with the 2.6.35-28 at the same machine. is it possible to update the package with a fixed Version from git ? Thanks Falk ** Affects: qemu-kvm (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in Ubuntu. https://bugs.launchpad.net/bugs/780657 Title: FreeBSD Hangs on Boot -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
[Bug 780657] [NEW] FreeBSD Hangs on Boot
Public bug reported: Binary package hint: qemu-kvm On 11.04 Natty, with the Kernel 2.6.38.8-42-server, with kvm 0.14 on an intel i970 hangs FreeBSD on Boot, like described in http://www.mail-archive.com/kvm@vger.kernel.org/msg50722.html and following mails. The Solution in the kvm.git seams to be working. The issue is not on 10.10 with the 2.6.35-28 at the same machine. is it possible to update the package with a fixed Version from git ? Thanks Falk ** Affects: qemu-kvm (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/780657 Title: FreeBSD Hangs on Boot -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
