[Bug 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
** Changed in: linux-2.6 (Debian) Status: Confirmed => Fix Released -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
Stefan; Giovanni: We will include the fix in Debian kernel version 2.6.32-12. The Debian bug report now includes a reference to the fix. -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
It is a bug related to the host side. There are patches in the upstream stable tree that will fix it. But that is just in review. Depending on how Debian picks up stable it would get fixed then 2.6.32.12 is pulled in. So it is not related to your Ubuntu guest. -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
Sorry, I didn't mention that I have AMD cpu (AMD Athlon(tm) 64 X2 Dual Core Processor 4600+). -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
I am using Debian Lenny as host (linux 2.6.32-bpo.3-amd64, qemu 0.12.3+dfsg-4~bpo50+2), but I was thinking that the bug was related to Ubuntu guest, isn't it? should I file a bug on Debian side? -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
I cannot see this happen here. I just tested with 2.6.32-21.32 as host kernel for i386 and amd64. What host/guest kernel combination are you using and what type of CPU do you have? -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
Any updates on this? I am testing it with the lucid release candidate, the oops still remains. -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
** Changed in: linux-2.6 (Debian) Status: Unknown => Confirmed -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
lavinog wrote: > I am experiencing some poor performance with beta-1 in qemu-kvm (didn't have > this issue last month.) > Would the removal of the patches (mentioned in comment #14) be the cause of > this? > I am using an AMD host, and just moving the mouse will cause the host cpu to > spike. I tested an image of karmic, and everything works. > The chances for that should be small. The patches removed were only present for on version and the whole batch caused guests to crash on boot. So it either worked and you had not the batch o it didn't -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
I am experiencing some poor performance with beta-1 in qemu-kvm (didn't have this issue last month.) Would the removal of the patches (mentioned in comment #14) be the cause of this? I am using an AMD host, and just moving the mouse will cause the host cpu to spike. I tested an image of karmic, and everything works. -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
The patches which triggered this issue have been backed out for beta-1. The additional patch to fix the issue is now known. The combination will be applied and tested together to avoid a recurrence. This will happen after bete-1. ** Changed in: linux (Ubuntu Lucid) Status: In Progress => Fix Released -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
** Tags added: patch -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
While I want to wait for this to further go through the process upstream, there is a fix for this issue now. And some explanation why this was observed only by some people. It seems the bug was only observable on AMD based systems which seem to need certain hypercall instructions patched where Intel CPUs do not. And that code happened to be in a write-protected section which is protected by the patch that introduced the problem. So the fix is to allow access without checking for protections when kvm itself wants to modify an instruction. Many thanks to Marcelo Tosatti for helping on this. ** Patch added: "Proposed fix" http://launchpadlibrarian.net/40827609/KVM%3A%20x86%3A%20ignore%20access%20permissions%20for%20hypercall%20patching.patch -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
** Changed in: linux (Ubuntu) Milestone: None => ubuntu-10.04-beta-1 ** Also affects: linux (Ubuntu Lucid) Importance: High Assignee: Stefan Bader (stefan-bader-canonical) Status: In Progress ** Also affects: qemu-kvm (Ubuntu Lucid) Importance: High Status: Invalid -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
** Bug watch added: Debian Bug tracker #573071 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=573071 ** Also affects: linux-2.6 (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=573071 Importance: Unknown Status: Unknown -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
I am adding another dmesg dump plus a matching kvm_leave_lazy_mmu disassembly. ** Attachment added: "kvm_leave_lazy_mmu.txt" http://launchpadlibrarian.net/40627894/kvm_leave_lazy_mmu.txt -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
Dustin Kirkland wrote: > Stefan, can we get this into the next kernel build (if it's not > already?)? The next Lucid kernel has reverted all the KVM patches until we find out a patchset that works. I am currently trying to get upstream involved as it looks to me the same thing would happen on stable. -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
Marking invalid against the qemu-kvm userspace, and in-progress against the kernel. Looks like Stefan has this in hand. Stefan, can we get this into the next kernel build (if it's not already?)? ** Changed in: linux (Ubuntu) Status: Confirmed => In Progress ** Changed in: qemu-kvm (Ubuntu) Status: Confirmed => Invalid -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
I ran into the same problem today and the kernel from http://people.canonical.com/~smb/bug531823 fixes the bug for me. Good work :) -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
@Stefan, I can confirm that guests no longer die with the host kernel version you placed. Linux buzz 2.6.32-15-generic #22+kvmfix1 SMP Thu Mar 4 22:13:32 UTC 2010 i686 GNU/Linux P.S. The correct link is http://people.canonical.com/~smb/bug531823. -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
Ok, so it seems that there is one change which seems responsible for this: KVM: fix memory access during x86 emulation. Though I cannot be completely sure this is the only thing causing problems (my system here is too erratic with gfx) I have placed some kernels without this at http://people.canonical.com/~/smb/bug531823. Maybe someone else can confirm whether this solves the problem. Thanks. -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
Okay thanks. We're working on getting that host kernel some therapy ;-) -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
Dustin, That happens even when I'm just trying to start ubuntu cd off an ide emulation. The guest kernel finds out that it runs in kvm and commits suicide. -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
Roman, out of curiosity, do you still see the oops if you boot without virtio disks (and use scsi or ide instead)? -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
** Changed in: linux (Ubuntu) Assignee: (unassigned) => Stefan Bader (stefan-bader-canonical) -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Status: New => Confirmed ** Changed in: linux (Ubuntu) Importance: Undecided => High ** Changed in: qemu-kvm (Ubuntu) Status: New => Confirmed ** Changed in: qemu-kvm (Ubuntu) Importance: Medium => High ** Tags added: regression-potential -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
Hello, I am experiencing this issue with: qemu-kvm 0.12.3-0ubuntu4 Linux buzz 2.6.32-15-generic #22-Ubuntu SMP Tue Mar 2 02:24:17 UTC 2010 i686 GNU/Linux I was able to start the vms by rebooting into Linux buzz 2.6.32-14-generic #20-Ubuntu SMP Sat Feb 20 05:38:50 UTC 2010 i686 GNU/Linux So there is something being done in -15 release that is causing this issue. ** Changed in: qemu-kvm (Ubuntu) Status: Incomplete => New -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
Which version of kvm are you using? Regards chuck ** Changed in: qemu-kvm (Ubuntu) Importance: Undecided => Medium ** Changed in: qemu-kvm (Ubuntu) Status: New => Incomplete -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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 531823] Re: [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04)
** Summary changed: - [lucid] All linux guests oops during boot (9.04, 9.10, 10.04) + [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) -- [lucid] All linux guests oops in kvm_leave_lazy_mmu during boot (9.04, 9.10, 10.04) https://bugs.launchpad.net/bugs/531823 You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu-kvm in ubuntu. -- 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
