[Bug 710114] Re: kvm/qemu server "freeze"
Thanks for the info, slu. I'm sorry we couldn't nail this down in lucid. Since we have no other reporters to help track down the cause and have lost the only hardware on which it was found, I'm going to mark this invalid. --- Ubuntu Bug Squad volunteer triager http://wiki.ubuntu.com/BugSquad ** Changed in: qemu-kvm (Ubuntu) Status: Incomplete => Invalid -- 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/710114 Title: kvm/qemu server "freeze" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/710114/+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 710114] Re: kvm/qemu server "freeze"
Server dont crash with disabled KSM, but I test it only 7 days that was not enough to give a answer! Because we had a lot of trouble with the crashes and dont know its maybe a hardware failure we switch to debian with the same hardware. -- 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/710114 Title: kvm/qemu server "freeze" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/710114/+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 710114] Re: kvm/qemu server "freeze"
In comment #22, you say you are waiting to find out if disabling KSM solved it. Do I gather from comment #23 that you reproduced the crash with KSM disabled? -- 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/710114 Title: kvm/qemu server "freeze" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/710114/+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 710114] Re: kvm/qemu server "freeze"
The server has been running for 10 weeks without any problem on debian 6.0. -- 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/710114 Title: kvm/qemu server "freeze" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/710114/+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 710114] Re: kvm/qemu server "freeze"
@ Serge, yes KSM was enabled all the time and crashes, I disable it yesterday for testing as you write in comment #14. And no I can not reproducing the crash, sorry, I have no idea where the problem is. My first idea was, because the server crash every few weeks that the windows auto restart function after windows updates was the problem, so I disable the automatically restart of windows. But the server still crash every few weeks again. To find out its a KSM problem I have to wait now, after disable KSM support, some weeks. The hardware work 3 years fine, but maybe it is now really a hardware problem. -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
@slu, I'm confused. In comment #18 you said KSM was enabled, and I thought the crash was 100% reproducible. Is comment #20 about a different server? Or are you saying that with KSM disabled you cannot reproduce the crash? If it's not 100% reproducible (or even 50%) then maybe I just need to spend more time reproducing? -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
KSM is disabled: root@vmhost:~# cat /etc/default/qemu-kvm # To disable qemu-kvm's page merging feature, set KSM_ENABLED=0 and # sudo restart qemu-kvm KSM_ENABLED=0 #SLEEP_MILLISECS=2000 root@vmhost:~# Can not really reproduce the problem, the server running sometimes for four weeks without a crash. My plan is now to reinstall the server with Debian 6.0, when we have the trouble again it musst be a hardware problem. -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
Tried to reproduce twice on the server kernel. still couldn't hit it. Can you try and reproduce with ksm disabled? -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
root@vmhost:~# cat /etc/default/qemu-kvm # To disable qemu-kvm's page merging feature, set KSM_ENABLED=0 and # sudo restart qemu-kvm KSM_ENABLED=1 #SLEEP_MILLISECS=2000 root@vmhost:~# -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
We have three Ubuntu 10.04 servers (64Bit) and two WinXP Prof. 32Bit on this quem-kvm server running. Maybe there is no problem with the WinXP but in combination with the Ubuntu Servers. It looks like there is no way to reproduce the problem reliable and I am the only person who is affected. ** Attachment added: "WinXP_VM" https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/710114/+attachment/1943602/+files/WinXP_VM -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
Quoting slu (710...@bugs.launchpad.net): > Hi, > > don't look so good: > root@vmhost:/var/crash# ls -la > insgesamt 8 > drwxrwxrwt 2 root root 4096 2010-04-13 22:52 . > drwxr-xr-x 14 root root 4096 2010-06-04 01:37 .. > root@vmhost:/var/crash# > > Linux vmhost 2.6.32-30-server #59-Ubuntu SMP Tue Mar 1 22:46:09 UTC 2011 > x86_64 GNU/Linux > qemu-kvm 0.12.3+noroms-0ubuntu9.4 > > I have the server kernel, you test with the generic, maybe there is a > difference? Good thinking. I can pursue reproducing that. > The server work without problems for the last 6 weeks, maybe we have a hardware problem? That certainly is possible. -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
Hi, don't look so good: root@vmhost:/var/crash# ls -la insgesamt 8 drwxrwxrwt 2 root root 4096 2010-04-13 22:52 . drwxr-xr-x 14 root root 4096 2010-06-04 01:37 .. root@vmhost:/var/crash# Linux vmhost 2.6.32-30-server #59-Ubuntu SMP Tue Mar 1 22:46:09 UTC 2011 x86_64 GNU/Linux qemu-kvm 0.12.3+noroms-0ubuntu9.4 I have the server kernel, you test with the generic, maybe there is a difference? The server work without problems for the last 6 weeks, maybe we have a hardware problem? -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
Still could not reproduce. Since KSM shows up in the stack trace, could you try disabling KSM by doing echo 0 > /sys/kernel/mm/ksm/run and then try again? Please also append your /etc/default/qemu-kvm and the result of virsh dumpxml (winxp_vm_name) to this report. -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
Hm, qemu-kvm 0.12.3+noroms-0ubuntu9.4 and kernel 2.6.32-30-generic #59-Ubuntu, I was not able to reproduce. Although I was doing it over vnc. Let me try over ssh -X. -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
Am installing a winxp sp2 VM right now on a lucid host to test with. -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
Hi, can you look under /var/crash for the info collected by apport-collect? If you can log in on terminal (after a reboot if need be) and do apport-bug /var/crash/_qemu-kvm..crash -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
@ Serge, Server crash today again. I start "apport-collect 710114" on the terminal, but I can not send the bugreport with my launchpad login :-( -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
@slu The next time this happens, could you please run apport-collect 710114 So we can hopefully get all the information we need to figure out what's going on? ** Changed in: qemu-kvm (Ubuntu) Status: In Progress => 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
Yes installed using the defaults from virt-manager. -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
(*&$% guis ** Changed in: qemu-kvm (Ubuntu) Status: Fix Committed => In Progress -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
So a lucid host, and winxp professional guest. Installed using the defaults from virt-manager? I"ll give that a shot when I can boot my host into lucid. ** Changed in: qemu-kvm (Ubuntu) Status: Incomplete => Fix Committed ** Changed in: qemu-kvm (Ubuntu) Assignee: (unassigned) => Serge Hallyn (serge-hallyn) -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
I produce a crash today. Server running with a older Kernel at the moment (for testing): Linux vmhost 2.6.32-26-server #48-Ubuntu SMP Wed Nov 24 10:28:32 UTC 2010 x86_64 GNU/Linux What I do: - ssh -X root@vmhost (from my client) - start virt-manager - open the screen of a virtual winxp prof (which standing on the windows login screen) - press shutdown on the windows login screen and a half second later the vmhost server crash I do not want to try 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
Yes lucid running from june 2010 to october 2010 without problems on this hardware. In november or december 2010 the server crash first time with the error. Dont find a way to reliably reproduce the problem, happens one time in the night and the other two times in middle of the day. -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
Thanks for reporting this bug and helping to make Ubuntu better. This looks to be a bug in the rmap_remove() function in the kernel kvm module. Unfortunately that part of the code has changed quite a bit so this could be tough to track down. To help narrow things down, can you tell us when was the first time you encountered this? Had you been running for a long time on lucid before that with no problems? And is there anything in particular which you can do in your guest to reliably reproduce this? ** Changed in: qemu-kvm (Ubuntu) Status: New => Incomplete ** Changed in: qemu-kvm (Ubuntu) Importance: Undecided => High -- 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/710114 Title: kvm/qemu server "freeze" -- 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 710114] Re: kvm/qemu server "freeze"
** Package changed: ubuntu => qemu-kvm (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/710114 Title: kvm/qemu server "freeze" -- 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
