[Bug 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
*** This bug is a duplicate of bug 1012946 *** https://bugs.launchpad.net/bugs/1012946 Still not fixed... I have found a workaround which was working (bellow) but now its not working anymore... Same stuff like above in previous posts... Someone spotted: Please note that if you want to create a qunatal or precise guest, you need to either add the option --addpkg=linux-image-generic or apply the patch from http://markmail.org/threadhg747mkmnkpy4icc#query:+page:1+mid:7rxyi4wjo6vkssh7+state:results because otherwise the build process will fail!!! This KVM installation with VMBuilder is rotten somewhere deep in my opinion, it has never worked properly. This is a different machine (X86_64) a lots of memory and space... PROCEDURE TO INSTALL AS LVM WHICH WAS WORKING BEFORE... 1.) Instal VM as file based with --addpkg=linux-image-generic 2.) Wait for the install to finish... 3.) Afterwards, you can find an XML configuration file for the VM in /etc/libvirt/qemu/ (=> /etc/libvirt/qemu/vm4.xml): root@host:~# ls -l /etc/libvirt/qemu/ This process will create VM image (qcow2) in /var/lib/libvirt/images/vm4 /ubuntu-kvm root@host:~# cd /var/lib/libvirt/images/vm4/ubuntu-kvm Now that we know the name of our image (tmp09XnBf.qcow2), we can convert it as follows: root@host:~# qemu-img convert tmp09XnBf.qcow2 -O raw /dev/virtualvg2/vm4 Afterwards you can delete the disk image: root@host:~# rm -f tmp09XnBf.qcow2 Now we must modify the VM's configuration... root@host:~# virsh edit vm4 ... and change the following section... - [...] [...] - ... so that it looks as follows: - [...] [...] - Now we activate the VM: root@host:~# virsh --connect qemu:///system virsh # define /etc/libvirt/qemu/vm4.xml virsh # start vm4 Making VM survive host reboot virsh # autostart vm4 Result now not working taking 100% cpu and hangs! -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
*** This bug is a duplicate of bug 1012946 *** https://bugs.launchpad.net/bugs/1012946 ** This bug has been marked a duplicate of bug 1012946 dm-part-sync.patch breaks creating multiple partitions on a LVM volume -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libvirt in Ubuntu. https://bugs.launchpad.net/bugs/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
Ok will give it a try and post on bug bug 1012946. -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
Isn't this duplicate of bug 1012946 ? Can you please try parted from precise-proposed as per instructions in: https://bugs.launchpad.net/ubuntu/+source/parted/+bug/1012946/comments/11 and comment here or on the bug 1012946. -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
@Lewdmole, Looking at your vg and lvdisplay output, it looks like you should have plenty of space for vm5. -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
@Lewdmole, Looking at your vg and lvdisplay output, it looks like you should have plenty of space for vm5. -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
** Also affects: lvm2 (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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
** Attachment added: "vgdisplay-after-vm5-install.txt" https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1029889/+attachment/3398047/+files/vgdisplay-after-vm5-install.txt -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
** Attachment added: "lvdisplay-after-vm5-install.txt" https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1029889/+attachment/3398048/+files/lvdisplay-after-vm5-install.txt -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
** Attachment added: "vmbuilder-install-lvm-based-log.txt" https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1029889/+attachment/3398046/+files/vmbuilder-install-lvm-based-log.txt -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
VM Builder Logs for VM4 - File Based and VM5 - LVM Based Partition setup and boot.sh are identical: vmbuilder.partition root 2 swap 6000 boot.sh # Install openssh-server apt-get update apt-get install -qqy --force-yes openssh-server RESULT: VM4 (File Based) - Works No Problem VM5 (LVM Based) - HANGS 100% CPU Tomas ** Attachment added: "vmbuilder-install-img-based-log.txt" https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1029889/+attachment/3398045/+files/vmbuilder-install-img-based-log.txt -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
@Serge, Let me know what else we could try to diagnose this problem. This is the same VM machine created via vmbuilder with LVM volumes: lvcreate -L26G -n vm5 virtualvg vmbuilder.partition root 2 swap 6000 boot.sh # Install openssh-server apt-get update apt-get install -qqy --force-yes openssh-server vmbuilder kvm ubuntu \ --suite=precise \ --flavour=virtual \ --arch=amd64 \ --mem=512 \ --hostname=vm5 \ --bridge=br0 \ --mirror=http://de.archive.ubuntu.com/ubuntu \ -o --libvirt=qemu:///system \ --ip x.x.x.x \ --mask x.x.x.x \ --net x.x.x.x \ --bcast x.x.x.x \ --gw x.x.x.x \ --dns 8.8.8.8 \ --part=/var/lib/libvirt/images/vm5/vmbuilder.partition \ --raw=/dev/mapper/virtualvg-vm5 \ --templates=/var/lib/libvirt/images/kvm-custom-temp \ --user=tuser \ --name=Temp User \ --pass=xxx \ --addpkg=vim-nox \ --addpkg=acpid \ --firstboot=/var/lib/libvirt/images/vm5/boot.sh \ 2>&1 | tee vmbuilder-install-lvm-based-log.txt The VM hangs taking 100% CPU! There is screenshot: ** Attachment added: "KVM-lvm-based-VM-takes-100CPU.png" https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1029889/+attachment/3398044/+files/KVM-lvm-based-VM-takes-100CPU.png -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
Sorry for not responding for so long. > Just to be sure, your symptoms are exactly the same as in the Description - kvm hangs (no response to network or the vnc console) and takes 100% cpu? Yes, the symptoms are exactly the same. > Unfortunately, based on your .xml file it looks like you're not using an LVM backed VM. I wonder if we should pursue this in a separate bug. Would you mind opening a new bug? I've experienced the exact same bug (or at least the exact same symptoms) both with LVM and qcow2 images. If you feel that LVM is a sufficiently differentiating factor then I'm happy to file a new bug. I've found that two out of three servers with 12.04 are affected by this bug. That means that brand new images built on these machines exhibit this bug. However, I am still able to build images on the third server which work as expected on any of the three servers. I don't know what to make of that, since the machines should be close to identical in setup (and are certainly identical from a hardware perspective). -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
** Attachment added: "vgdisplay.txt" https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1029889/+attachment/3397954/+files/vgdisplay.txt -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
vgdisplay and lvdisplay Is there any minimum space required on volume group to create LVM based VM apart of the LV size of the particular VM ? ** Attachment added: "lvdisplay.txt" https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1029889/+attachment/3397953/+files/lvdisplay.txt -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
Sorry for the delay I have tried File based VM works without problems. I can add another File based VM - I have installed via vmbuilder: vmbuilder kvm ubuntu \ --suite=precise \ --flavour=virtual \ --arch=amd64 \ --mem=512 \ --hostname=vm4 \ --bridge=br0 \ --mirror=http://de.archive.ubuntu.com/ubuntu \ -o --libvirt=qemu:///system \ --ip x.x.x.x \ --mask x.x.x.x \ --net x.x.x.x \ --bcast x.x.x.x \ --gw x.x.x.x \ --dns 8.8.8.8 \ --part=/var/lib/libvirt/images/vm4/vmbuilder.partition \ --templates=/var/lib/libvirt/images/kvm-custom-temp \ --user=tuser \ --name=Tem User \ --pass=xxx \ --addpkg=vim-nox \ --addpkg=acpid \ --firstboot=/var/lib/libvirt/images/vm4/boot.sh \ 2>&1 | tee vmbuilder-install-log.txt LVM based is not working! It is a mystery because all my other working VMs are LVM ... -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
@Lewdmole, have you had a chance to try this out without lvm? ** Changed in: libvirt (Ubuntu) Status: New => Incomplete ** Changed in: qemu-kvm (Ubuntu) Status: New => Incomplete -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
@Serge I have not tried that with non-LVM backend as we generalu use faster LVM backend. Will do a test next week after my vacations. -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
@Lewdmole, have you seen this happen with non-lvm backed VMs? -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
@Luke, thanks for the information. Just to be sure, your symptoms are exactly the same as in the Description - kvm hangs (no response to network or the vnc console) and takes 100% cpu? Unfortunately, based on your .xml file it looks like you're not using an LVM backed VM. I wonder if we should pursue this in a separate bug. Would you mind opening a new bug? If you could install the libc debugging symptoms and reproduce that could definately help. It would be good to figure out why select is hanging. If possible, getting the list of arguments passed to select from gdb and comparing the list of fds to /proc//fd/ entries could also help. If you change your machine type to pc-1.1 or pc-0.12, or change the network device type and/or switch to using the default virbr0 network, does that help? Is there anything in your host's syslog which looks helpful? -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
I've attached the VM instance's definition and the debugging output from gdb (which seemed quite minimal). Let me know if you need me to install debugging symbols for libc as well, or if you need any other data. -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
lb1 8ee4c960-184a-fa11-f9e8-292cd904371a 1048576 1048576 1 hvm destroy restart destroy /usr/bin/kvm -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
#0 0x7fc1e6d77823 in select () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x7fc1ea661da0 in main_loop_wait (nonblocking=) at main-loop.c:456 #2 0x7fc1ea5cb5ff in main_loop () at /build/buildd/qemu-kvm-1.0+noroms/vl.c:1482 #3 main (argc=, argv=, envp=) at /build/buildd/qemu-kvm-1.0+noroms/vl.c:3527 -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
Please follow the instructions in the section "Debug Symbol Packages" on https://wiki.ubuntu.com/DebuggingProgramCrash to install qemu-kvm- dbgsym. Restart one of the machine which hangs taking 100% cpu, then from another terminal do gdb -p $(pidof kvm) # or insert the pid of the hanging kvm instance then type 'where' to get information about what kvm is doing. -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
Hi, I still suffer from the issue described above even after various kernel and libvirt updates which were issued by ubuntu. Serge Hallyn tried to repeat this issue but without success. Please try the procedures I was trying and post the logs and debug information here along with your VM setup etc. You will find all the details in this post. It would be great if we could resolve that issue as it affects my only machine with Xeon E processor others with the same seutup and AMD are working fine. Best Lewdmole -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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 1029889] Re: LVM Based KVM VM taking 100% CPU on first start and hangs.
I have experienced the same issue with 1 of 3 identical machines. All Intel Xeon E31230 @ 3.20GHz. Let me know if there is anything I can do to help diagnose it. -- 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/1029889 Title: LVM Based KVM VM taking 100% CPU on first start and hangs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1029889/+subscriptions -- 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
