[Bug 714335] Re: KVM SMP Linux Guests Hang on AMD
Great, thanks Brian. I'll forward the patch along with SRU justification to the kernel team. ** Package changed: qemu-kvm (Ubuntu) => linux (Ubuntu) -- 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/714335 Title: KVM SMP Linux Guests Hang on AMD -- 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 714335] Re: KVM SMP Linux Guests Hang on AMD
Hi Serge, Yes, this kernel does fix the problem! Thank you!! I was able to boot successfully into the kernel with SMP enabled on the systems that couldn't do this before. Let me know if there is additional testing I can do to help you get this into the Lucid stream. Thanks again for all of your help, Serge. Great work! -- 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/714335 Title: KVM SMP Linux Guests Hang on AMD -- 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 714335] Re: KVM SMP Linux Guests Hang on AMD
@Brian, jinkeys, sorry, I don't know what I was thinking. The kernel is at http://people.canonical.com/~serge/linux- image-2.6.32-29-generic_2.6.32-29.58ubuntu1_amd64.deb -- 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/714335 Title: KVM SMP Linux Guests Hang on AMD -- 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 714335] Re: KVM SMP Linux Guests Hang on AMD
@Serge, Thanks for the work on these patches. I did look at the PPA and all I see are the 2.6.38 packages, and since the 2.6.32-29 kernel isn't in the mainstream repository yet I am unsure of where to get it. Could you please point me to where I can get this new kernel with the fixes, so I can test it? Thanks! -- 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/714335 Title: KVM SMP Linux Guests Hang on AMD -- 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 714335] Re: KVM SMP Linux Guests Hang on AMD
@Brian, I've uploaded a kernel .deb which (hopefully correctly) re-implements the two fixes which looked most likely to address the bug, at linux- image-2.6.32-29-generic_2.6.32-29.58ubuntu1_amd64.deb. I've verified that I can at least install that kernel package on a lucid intel system and continue to use KVM. Could you test to see if it fixes your problems on AMD? -- 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/714335 Title: KVM SMP Linux Guests Hang on AMD -- 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 714335] Re: KVM SMP Linux Guests Hang on AMD
** Patch added: "kernel patch attempting to recreate the two fixes from upstream" https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/714335/+attachment/1877692/+files/0001-kvm-cherrypick-three-kvm-fixes.patch -- 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/714335 Title: KVM SMP Linux Guests Hang on AMD -- 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 714335] Re: KVM SMP Linux Guests Hang on AMD
** Summary changed: - KVM SMP Linux Guests Hang + KVM SMP Linux Guests Hang on AMD -- 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/714335 Title: KVM SMP Linux Guests Hang on AMD -- 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 714335] Re: KVM SMP Linux Guests Hang
I believe this bug has been affecting me for some time. Just to be clear on my situation: * Host system running Ubuntu 10.04 64-bit * Guest systems running Ubuntu 10.04 64-bit * Guests freeze a large percentage of time, though not always. * They always freeze immediately after the "Freeing initrd memory" line * They work fine if set to "-smp 1" -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
Unfortunately those commits do not cleanly cherrypick. I'll try to rewrite them from scratch, time permitting. -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
Hi Serge, Yes, that PPA kernel does indeed fix it. I used the PPA kernel in the guest and it made everything work perfectly. So I'm thinking one of those fixes you mentioned solves the problem. Note that I am still using the standard Lucid kernel in the host, but I don't think that's relevant since it seems like the issue is in the guest-mode kernel, not the host. In any case, I think it would be very helpful to have those fixes backported to the Lucid kernel, so those running the LTS in their guests can have stable SMP configurations. Thanks for all of your help! -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
Hi Brian, have you had a chance to test with the new kernel? ** Changed in: qemu-kvm (Ubuntu) Importance: Undecided => Medium -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
My configuration might be a little off-topic, but I'm experiencing a similar problem so I thought I'd leave a comment here anyway. I'm using qemu 0.13 on a Debian Squeeze host (kernel 2.6.32-5-amd64) running on a 64-bit Intel Xeon. The guest is a 64-bit Win 2008 R2. When I run the VM using qemu-system-x86_64 with -enable-kvm and no -smp options, the guest boots and installs fine. When I enable more than one core through -smp, the guest boots but completely freezes very soon. It seems to hang always, but not exactly at the same point. After the guest hangs, the qemu process keeps using 100% CPU. The same behavior happens on a different 64-bit Intel Xeon host running Debian Lenny with a custom 2.6.36 kernel. Also, the same behavior happens with qemu 0.14-rc1. I haven't tested yet if a Linux guest kernel hangs, but will do that. -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
Hey there... same issue here, on a 6-core Phenom X6 1055T. I already have 3 VMs running perfectly that I built with vm-builder, but a fourth just isn't going to work. vmbuilder kvm ubuntu --suite maverick --flavour virtual --arch amd64 -o --libvirt qemu:///system --ip 203.4.172.214 --hostname -dev --mask 255.255.255.240 --net 203.4.172.208 --bcast 203.4.172.223 --gw 203.4.172.209 --dns 203.4.172.209 --bridge br0 --user richard --pass zzyyaa --addpkg openssh-server --addpkg unattended-upgrades --addpkg linux-image-generic --addpkg nfs-common --addpkg vim -d /opt/kvm/- dev --mirror http://apt-mirror.z.com.au/pub/ubuntu/ --mem=2048 --rootsize=8192 --cpus=1 Haven't posted on launchpad before, so if I'm missing any crucial details I should be including, please let me know. -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
It ended up being "apt-get install linux-image-server-backport-natty" after doing an update. But you told me what I needed to get it working. I'll try it out and let you know how it works. Thanks for all the help! -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
I think you should be able to just: sudo add-apt-repository ppa:kernel-ppa/ppa sudo apt-get install linux-lts-backport-natty I'm waiting for a lucid vm to build so I can test that to make sure. -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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
Re: [Bug 714335] Re: KVM SMP Linux Guests Hang
What is the fastest and easiest way for me to add these Natty backports packages to test them on my affected machines? I went to the PPA you mentioned but I see a very large list of packages. I would prefer to add some repo to my apt sources list and get them that way, but I'm not 100% certain exactly what to add at this point. --- On Mon, 2/14/11, Serge Hallyn <714...@bugs.launchpad.net> wrote: From: Serge Hallyn <714...@bugs.launchpad.net> Subject: [Bug 714335] Re: KVM SMP Linux Guests Hang To: brianknoll2...@yahoo.com Date: Monday, February 14, 2011, 4:24 PM Is it possible in your environment to test with the kernel package from https://launchpad.net/~kernel-ppa/+archive/ppa? The package is called linux-lts-backport-natty, and should include all kvm fixes which are currently upstream. If that does not fix it, then the two commits cited above in comment #16 can't fix it. -- You received this bug notification because you are a direct subscriber of the bug. https://bugs.launchpad.net/bugs/714335 Title: KVM SMP Linux Guests Hang Status in “qemu-kvm” package in Ubuntu: Confirmed Bug description: Binary package hint: qemu-kvm SMP Linux guests are hanging under KVM. This does not happen always, but at least 50% of the time or so. If I start the guests with "-smp 1" or just completely omit the "-smp" parameter this doesn't happen. I can also say that it doesn't seem to happen on a Nehalem-based 8-core Xeon-based machine I've tried it on, but it does happen on both an AMD Phenom II 965 machine (the one this bug report is from) as well as an AMD Phenom II 1090T-based machine. I am starting the VMs from the command line, manually running qemu-kvm with a command like the following: qemu-system-x86_64 -m 1024 -smp 4 -cpu host -drive file=/var/local/kvm/machine.qcow2,if=virtio,cache=off,boot=on -net nic,model=virtio,macaddr=77:88:99:12:34:56 -net tap -nographic -daemonize Additional Information: Description: Ubuntu 10.04.2 LTS Release: 10.04 qemu-kvm: Installed: 0.12.3+noroms-0ubuntu9.3 Candidate: 0.12.3+noroms-0ubuntu9.3 Version table: *** 0.12.3+noroms-0ubuntu9.3 0 500 http://us.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages 100 /var/lib/dpkg/status 0.12.3+noroms-0ubuntu9 0 500 http://us.archive.ubuntu.com/ubuntu/ lucid/main Packages ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: qemu-kvm 0.12.3+noroms-0ubuntu9.3 ProcVersionSignature: Ubuntu 2.6.32-28.55-server 2.6.32.27+drm33.12 Uname: Linux 2.6.32-28-server x86_64 Architecture: amd64 Date: Sun Feb 6 19:11:57 2011 InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1) KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1: UID PID PPID C SZ RSS PSR STIME TTY TIME CMD MachineType: System manufacturer System Product Name ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-28-server root=UUID=941072c0-f822-44b4-b61c-09b6daadcb7c ro quiet splash clocksource=pit ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: qemu-kvm dmi.bios.date: 08/18/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1006 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M4A785-M dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1006:bd08/18/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A785-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To unsubscribe from this bug, go to: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/714335/+subscribe -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
Is it possible in your environment to test with the kernel package from https://launchpad.net/~kernel-ppa/+archive/ppa? The package is called linux-lts-backport-natty, and should include all kvm fixes which are currently upstream. If that does not fix it, then the two commits cited above in comment #16 can't fix 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
I wonder whether one of: 1d5f066e0b63271b67eac6d3752f8aa96adcbddb: KVM: x86: Fix a possible backwards warp of kvmclock 28e4639adf0c9f26f6bb56149b7ab547bf33bb95: KVM: x86: Fix kvmclock bug could fix 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
i had just try linux-image-2.6.38-3-server from natty and it's booting fine. -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
same bug here, https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/669818 i'had marked it as duplicate -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
@Brian awesome, thanks for finding the upstream bug. I'm afraid I won't be able to do so today, but I'll look in detail tomorrow and try to devise a fix. Thanks again. -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
I also want to mention that in my last comment, Launchpad turned the upstream bug number into a hyperlink and referenced an Ubuntu bug of the same number; that link is not correct, but I can't edit it because I don't have access. Please follow the first link in post #11 (the one on SourceForge) for information about the upsteam bug I am describing. -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
Okay, I have done some more research and testing and I now think the following upstream KVM bug is the problem: http://sourceforge.net/tracker/?func=detail&aid=2968899&group_id=180599&atid=893831 Upstream KVM bug 2968899 describes a bug which causes the SMP guest to lock up when setting the time. I disabled NTP on my guests to test this, and my guests boot fine without NTP. Obviously, that's not an acceptable "workaround" because having managed time is a requirement for any well-managed machine, especially a server. But it does look to me like the bug is an upstream bug. However, it doesn't look like it's getting any attention from anyone, unfortunately. ** Bug watch added: SourceForge.net Tracker #2968899 http://sourceforge.net/support/tracker.php?aid=2968899 -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
@Alexandre: I'm not quite following your comment. Is all of your experience on a Debian host? Are you able to boot a Debian guest with 2.6.33 through 2.6.35 kernel? -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
I also want to add that I am not 100% clear where the bug is at this point. My best guess, based on the information we have available in this ticket, is that there is an upstream bug in the Linux kernel itself, with regard to the way it handles AMD64 processors when running under KVM. If that's the case, perhaps we should add the Linux kernel to the affected packages list for the ticket. I think an Ubuntu developer should comment on this. -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
Someone else has confirmed the same bug so I am changing the status to "Confirmed". ** Changed in: qemu-kvm (Ubuntu) Status: Incomplete => Confirmed -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
Hi, i have exactly the same problem with my quad opteron 6174 hosts. (no problem on intel ). my hosts are running proxmox 1.7 distrib (debian lenny with 2.6.32 kernel backported from squeeze). my ubuntu guests can boot with 2.6.32-24 kernel in smp mode, but since 2.6.32-25 they are hanging at grub. 2.6.35 maverik kernels doesn't work. i had try to upgrade my host kernel to 2.6.35, same problem with my guest. also, i had tried debian squeeze guests, i have the same problem with debian 2.6.32 kernel. Tell me if I can help . -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
Thank you, Serge. Please let me know how I can help. I am wiling to test packages and help however I can. Thanks again for looking into this! -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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
Re: [Bug 714335] Re: KVM SMP Linux Guests Hang
Thanks, Brian. I'm going to play a bit more with the latest current usptream to see what I can reproduce there. If that fixes it, then I'll provide a backport to lucid for those running into problems with AMD. In the more likely event that there are still problems, then we can at least work with upstream to figure out what's going on. -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
Thank you for your response. I did try the backported Maverick qemu-kvm packages from the PPA you mentioned, and they did not help the problem at all. Actually, they seem to have made it much worse. Now, instead of SMP VMs failing about 50% of the time on my AMD-based machines, it fails 100% of the time. If I start the VMs with a console, the last messages shown on the console are: BIOS EDD facility v0.16 2004-Jun-25, 0 devices found EDD information not available. Freeing initrd memory: 11176k freed After that, the guest freezes and doesn't ever come back. If I boot the VM guest without SMP support in KVM, then it boots and runs just fine, just like the version from Lucid. -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
Thanks for taking the time to report this bug and helping to make Ubuntu better, Brian. Unfortunately AMD support definately seems to have some holes compared to intel. Though until now all the breakages I've seen have been with 32-bit support, so this is interesting. Could you try with the back-ported kvm from https://launchpad.net /~ubuntu-virt/+archive/ppa/+packages and see if you fare any better? ** 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
** Tags added: kvm qemu-kvm virtualization -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
I also want to mention that the guests are fully-updated 64-bit Ubuntu Lucid Server 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
** Description changed: Binary package hint: qemu-kvm SMP Linux guests are hanging under KVM. This does not happen always, but at least 50% of the time or so. If I start the guests with "-smp 1" or just completely omit the "-smp" parameter this doesn't happen. I can also say that it doesn't seem to happen on a Nehalem-based 8-core Xeon-based machine I've tried it on, but it does happen on both an AMD Phenom II 965 machine (the one this bug report is from) as well as an AMD Phenom II 1090T-based machine. I am starting the VMs from the command line, manually running qemu-kvm with a command like the following: - qemu-system-x86_64 -m 1024 -smp 1 -cpu host -drive + qemu-system-x86_64 -m 1024 -smp 4 -cpu host -drive file=/var/local/kvm/machine.qcow2,if=virtio,cache=off,boot=on -net nic,model=virtio,macaddr=77:88:99:12:34:56 -net tap -nographic -daemonize Additional Information: Description: Ubuntu 10.04.2 LTS Release: 10.04 qemu-kvm: - Installed: 0.12.3+noroms-0ubuntu9.3 - Candidate: 0.12.3+noroms-0ubuntu9.3 - Version table: - *** 0.12.3+noroms-0ubuntu9.3 0 - 500 http://us.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages - 100 /var/lib/dpkg/status - 0.12.3+noroms-0ubuntu9 0 - 500 http://us.archive.ubuntu.com/ubuntu/ lucid/main Packages + Installed: 0.12.3+noroms-0ubuntu9.3 + Candidate: 0.12.3+noroms-0ubuntu9.3 + Version table: + *** 0.12.3+noroms-0ubuntu9.3 0 + 500 http://us.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages + 100 /var/lib/dpkg/status + 0.12.3+noroms-0ubuntu9 0 + 500 http://us.archive.ubuntu.com/ubuntu/ lucid/main Packages ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: qemu-kvm 0.12.3+noroms-0ubuntu9.3 ProcVersionSignature: Ubuntu 2.6.32-28.55-server 2.6.32.27+drm33.12 Uname: Linux 2.6.32-28-server x86_64 Architecture: amd64 Date: Sun Feb 6 19:11:57 2011 InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1) KvmCmdLine: Error: command ['ps', '-C', 'kvm', '-F'] failed with exit code 1: UIDPID PPID CSZ RSS PSR STIME TTY TIME CMD MachineType: System manufacturer System Product Name ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-28-server root=UUID=941072c0-f822-44b4-b61c-09b6daadcb7c ro quiet splash clocksource=pit ProcEnviron: - LANG=en_US.UTF-8 - SHELL=/bin/bash + LANG=en_US.UTF-8 + SHELL=/bin/bash SourcePackage: qemu-kvm dmi.bios.date: 08/18/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1006 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M4A785-M dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1006:bd08/18/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A785-M:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer -- 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/714335 Title: KVM SMP Linux Guests Hang -- 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 714335] Re: KVM SMP Linux Guests Hang
-- 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/714335 Title: KVM SMP Linux Guests Hang -- 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
