[Bug 1307473] Re: guest hang due to missing clock interrupt
I believe I've found the fix for this issue on 3.13. If you can, please test the kernel posted on comment #1 on this bug: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1346917 Make sure KSM is enabled; and any workarounds for this bug are disabled. If this fixes the issue for you, you are welcome to mark this bug as a duplicate of 1346917. Thanks! ** No longer affects: qemu (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
** Tags added: ksm-numa-guest-freeze -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
I have resolved my problem by running kernel 3.14.1-031401 from http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14.1-trusty/, Ubuntu 14.04 LTS. The host has been running solid for a good 24 hours with 1 Windows Server 2008 R2, 2 cpu, VM running and two additional VMs running for three hours. The pertinent xml entries that were changed or not included in the original xml configuration file are os type arch='x86_64' machine='pc-i440fx-trusty'hvm/type #changed from type arch='x86_64' machine='pc-i440fx-1.7'hvm/type /os features hap/ # added entry /features clock offset='localtime' timer name='hypervclock'/ # added entry /clock I'm not sure what will happen when a kernel 3.14 is included in the main distribution. Will the future kernel 3.14 from the distribution replace the 3.14 kernel that was installed via dpkg? Thank you for everyone's messages. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
dup of #1332409? seems to be a 3.13 only bug. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
** No longer affects: qemu -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
I have a similar or the same problem with my Windows Server 2008 R2 virtual machines. The virtual machine stops with a Blue Screen error 101, clock interrupt was not received on a secondary processor. The error only occurs when the VM has 2 cpus. The error seems to occur when the VM is some load, over time (hours), or when I RDP to the VM after a few hours of it running. The same VM ran perfect under Ubuntu 12.04. Host Server ubuntu 14.04 LTS updated from 12.04 LTS kernel: 3.13.0-30 Virtual Machine Windows Server 2008 R2 2 cpus (when the error occurs) Attached is the VM xml configuration file. I did try adding the hyperv code and it seemed to help at first, but then errored in hours. I did boot to kernel 3.13.0-24 and the same error occurred within an hour under some load. Do people expect this problem to be resolved soon? Thank you for the help. ** Attachment added: vm1.xml https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1307473/+attachment/4153290/+files/vm1.xml -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
I need to amend comment #39, moving from 3.13.0-30 to 3.13.0-27 did not eliminate the problem. It would seem that it takes a couple of hours following a reboot for the symptoms to manifest with 3.13.0-27. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
We've resolved our issues by disabling KSM on the affected nodes. All of the non-affected nodes didn't have KSM enabled (due to a packaging bug elsewhere). After disabling KSM, our problems went away gradually in ~3 days. This means we're no longer affected by this issue (and given the other reports, probably never were). -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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
Re: [Bug 1307473] Re: guest hang due to missing clock interrupt
Quoting Ondergetekende (1307...@bugs.launchpad.net): We've resolved our issues by disabling KSM on the affected nodes. All of the non-affected nodes didn't have KSM enabled (due to a packaging bug elsewhere). After disabling KSM, our problems went away gradually in ~3 days. This means we're no longer affected by this issue (and given the other reports, probably never were). And which specific kernel are you on? -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
I believe I have the same problem, place a guest under any amount of load, let's say 'yum upgrade' and the network stack goes out to lunch for 1-5 seconds. Here is a sample of the ping statistics (host to guest) from doing such an operation on a 3.13.0-30.55 kernel: 213 packets transmitted, 213 received, 0% packet loss, time 211998ms rtt min/avg/max/mdev = 0.136/106.283/2651.359/428.403 ms, pipe 3 And a 3.11.0-19.33 kernel: 62 packets transmitted, 62 received, 0% packet loss, time 61074ms rtt min/avg/max/mdev = 0.189/0.434/1.987/0.228 ms -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
I can confirm that rolling back to 3.13.0-27 from 3.13.0-30 alleviated my symptoms. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
We haven't been able to reproduce the issues under lab conditions, and I'm not willing to use our production setup as a guinypig anymore. These issues have cost me too much credibility already. We believe #1326367 is causing this, as we've bisected this issue to be between 3.13.0-27.50 and 3.13.0-29.53 (see our results earlier). #1326367 is the only change which felt relevant, but admittedly, this is just a hunch. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
Ondergetekende: Physically is there *anything* different between the nodes in your #33 that exhibited no errors and those that exhibited a lot? CPU model/vendor, number of sockets, system vendor etc? (I'm wondering about a synchronised/unsynchronised tsc type issue). -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
I'm not confident yet we're seeing the exact same problem, but it is pretty close. We're running a somewhat wide range of hyperisor kernels, these are our observations so far. node-1-1 3.13.0-24-generic is affected for 0% of vms node-1-3 3.13.0-24-generic is affected for 0% of vms node-1-5 3.13.0-24-generic is affected for 0% of vms node-1-6 3.13.0-27-generic is affected for 0% of vms node-1-7 3.13.0-29-generic is affected for 0% of vms node-2-3 3.13.0-30-generic is affected for 0% of vms node-2-4 3.13.0-27-generic is affected for 0% of vms node-2-5 3.13.0-24-generic is affected for 0% of vms node-1-8 3.13.0-27-generic is affected for 2% of vms node-1-10 3.13.0-30-generic is affected for 33% of vms node-1-2 3.13.0-29-generic is affected for 48% of vms node-1-9 3.13.0-30-generic is affected for 32% of vms node-2-1 3.13.0-30-generic is affected for 20% of vms node-2-2 3.13.0-30-generic is affected for 7% of vms node-1-4 3.13.0-29-generic is affected for 61% of vm -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
Note that my list of affected nodes also include migrated VMs, so there are some false positives (VMs that came from an affected node). The affected VMs on node 1-8 all seem to be migrated from another node. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
Ondergetekende, can you provide further details to why you believe Bug #1326367 is causing this? Would you be willing to test a 3.11.0-24-generic kernel (reported stable) + the futex fix, or a chosen stable version of the 3.13 or 3.15 kernel with just the futex fix. To verify that the futex fix is the problem? -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
After installing kernel 3.15.1-031501-generic from kernel-ppa, both machines work without issues from 2014-06-25. Seems it's kernel issue that have already been solved upstream. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
I can confirm that it's more kernel issue than qemu. I run kernel 3.11.0-24-generic which is left after upgrade from Saucy and have no issues for at least two days. Before that with current 3.13.0-30-generic kernel my Windows guests crashed every 3-4 hours. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
Thanks, that's great to know! -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
AlsaDevices: total 0 crw-rw 1 root audio 116, 1 июня 30 18:31 seq crw-rw 1 root audio 116, 33 июня 30 18:31 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.14.1-0ubuntu3.2 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=ae5e2d0f-021c-46c2-8bad-0cecbdfaff95 InstallationDate: Installed on 2012-11-14 (593 days ago) InstallationMedia: Ubuntu-Server 12.10 Quantal Quetzal - Release amd64 (20121017.2) MachineType: Intel Corporation S5500BC Package: qemu 2.0.0+dfsg-2ubuntu1.1 PackageArchitecture: amd64 PciMultimedia: ProcFB: 0 VESA VGA ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-30-generic root=UUID=33d72c51-8774-4af2-9549-29b9c3bd2b62 ro nomdmonddf nomdmonisw nomdmonddf nomdmonisw ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2 RelatedPackageVersions: linux-restricted-modules-3.13.0-30-generic N/A linux-backports-modules-3.13.0-30-generic N/A linux-firmware 1.127.4 RfKill: Error: [Errno 2] No such file or directory Tags: trusty trusty Uname: Linux 3.13.0-30-generic x86_64 UpgradeStatus: Upgraded to trusty on 2014-06-26 (4 days ago) UserGroups: _MarkForUpload: True dmi.bios.date: 09/09/2011 dmi.bios.vendor: Intel Corp. dmi.bios.version: S5500.86B.01.00.0060.090920111354 dmi.board.asset.tag: dmi.board.name: S5500BC dmi.board.vendor: Intel Corporation dmi.board.version: E25124-456 dmi.chassis.asset.tag: dmi.chassis.type: 17 dmi.chassis.vendor: .. dmi.chassis.version: .. dmi.modalias: dmi:bvnIntelCorp.:bvrS5500.86B.01.00.0060.090920111354:bd09/09/2011:svnIntelCorporation:pnS5500BC:pvr:rvnIntelCorporation:rnS5500BC:rvrE25124-456:cvn..:ct17:cvr..: dmi.product.name: S5500BC dmi.product.version: dmi.sys.vendor: Intel Corporation ** Tags added: apport-collected trusty -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
Thanks, the soft lockup message in that dmesg may be helpful. Marking as affecting the kernel. ** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
I have the same symptoms with two trusty-amd64 virtual hosts: * win2003, linux guests hang for a period of time (~5 seconds, half of a minute and more) * win2008 blue screen with the same message This happens with kernels (host): Linux vsrv7 3.13.0-27-generic #50-Ubuntu SMP Thu May 15 18:06:16 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Linux vsrv9 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Qemu version: 2.0.0+dfsg-2ubuntu1.1 Here are qemu params of guests that definately hang: * precise with 3.11: qemu-system-x86_64 -enable-kvm -name m -S -machine pc-i440fx-trusty,accel=kvm,usb=off -m 4096 -realtime mlock=off -smp 2,sockets=2,cores=1,threads=1 -uuid ab7f1e0b-e82e-ddb7-b743-903b8732e333 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/m.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-shutdown -boot order=c,menu=on,strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x4 -drive file=/dev/vg00/kvm_m_1,if=none,id=drive-scsi0-0-0-0,format=raw,cache=none,aio=native -device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0 -netdev tap,fd=26,id=hostnet0,vhost=on,vhostfd=29 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:3a:76:ad,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -vnc 127.0.0.1:3 -device VGA,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-p ci,id=balloon0,bus=pci.0,addr=0x5 * win 2008 r2: qemu-system-x86_64 -enable-kvm -name ts2 -S -machine pc-1.0,accel=kvm,usb=off -m 1 -realtime mlock=off -smp 16,sockets=16,cores=1,threads=1 -uuid 4df29f97-7e47-8af3-0009-a5395c28e3c5 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/ts2.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime -no-shutdown -boot order=c,menu=on,strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x8 -drive file=/dev/vg00/kvm_ts2_1,if=none,id=drive-scsi0-0-0-0,format=raw,cache=none,aio=native -device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=drive-scsi0-0-0-0,id=scsi0-0-0-0 -drive file=/dev/vg00/kvm_ts2_2,if=none,id=drive-scsi0-0-0-1,format=raw,cache=none,aio=native -device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=1,drive=drive-scsi0-0-0-1,id=scsi0-0-0-1 -drive file=/dev/vg00/kvm_ts2_3,if=none,id=drive-scsi0-0-0-2,format=raw,cache=none,aio=native -device scsi -hd,bus=scsi0.0,channel=0,scsi-id=0,lun=2,drive=drive-scsi0-0-0-2,id=scsi0-0-0-2 -netdev tap,fd=26,id=hostnet0,vhost=on,vhostfd=30 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:ac:28:3a,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0 -vnc 127.0.0.1:0 -device VGA,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 * win 2003: qemu-system-x86_64 -enable-kvm -name ts4 -S -machine pc-i440fx-trusty,accel=kvm,usb=off -m 8192 -realtime mlock=off -smp 4,sockets=4,cores=1,threads=1 -uuid d9f9b238-5cb6-59a8-f3aa-ccfc6656040a -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/ts4.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=localtime -no-shutdown -boot order=c,menu=on,strict=on -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -drive file=/dev/vg00/kvm_ts4_1,if=none,id=drive-virtio-disk0,format=raw,cache=none,aio=native -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x4,drive=drive-virtio-disk0,id=virtio-disk0 -netdev tap,fd=26,id=hostnet0,vhost=on,vhostfd=27 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:37:6b:8d,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -device usb-tablet,id=input0 -vnc 127.0.0.1:2 -device VGA,id=video0,bus=pci.0,addr=0x2 -device virtio-balloon-pci,id=ballo on0,bus=pci.0,addr=0x5 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
** Attachment added: dmesg of precise guest while hanging https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1307473/+attachment/4137970/+files/dmesg.txt -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
Also, seems that these bugs are DUPs: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1308341 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1332409 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
It seem to be related to https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1291321, there is solution for Windows VM there. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: qemu (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
Both systems I mentioned above were upgraded from precise to trusty. After reinstalling them with clean install issue disappear and VMs are not crashing anymore. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
So the only thing you ran under taskset was the program in comment #1? And if you do not run that under taskset, then it doesn't skip? -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
I left over night following simple app which runs inside linux VM (pinned to
CPU1). and displays how much ticks happened during the 1 second sleep. I found
several occasions where sleep was taking much longer.
code:
#includesys/time.h
#includetime.h
#includestdio.h
#includestdint.h
#define CPUSPEED 2533422000
static __inline__ uint64_t getticks(void)
{
unsigned a, d;
asm(cpuid);
asm volatile(rdtsc : =a (a), =d (d));
return (((uint64_t)a) | (((uint64_t)d) 32));
}
int main()
{
uint64_t t0,t1;
while (1) {
t0 = getticks();
sleep(1);
t1 = getticks();
printf(Ticks: %lu delta:%lu\n,t1-t0, t1-t0-CPUSPEED);
}
return 0;
}
Sample1:
Ticks: 2533748354 delta:326354
Ticks: 2533785458 delta:363458
Ticks: 2533889852 delta:467852
Ticks: 13309910165 delta:10776488165
Ticks: 2533823762 delta:401762
Ticks: 2533817164 delta:395164
Ticks: 2533894302 delta:472302
Sample2:
Ticks: 2533896753 delta:474753
Ticks: 2533876689 delta:454689
Ticks: 2533783931 delta:361931
Ticks: 20528401242 delta:17994979242
Ticks: 2533904102 delta:482102
Ticks: 2533740733 delta:318733
Ticks: 2533856266 delta:434266
Sample3:
Ticks: 2533761095 delta:339095
Ticks: 2533652242 delta:230242
Ticks: 2533855141 delta:433141
Ticks: 18943955180 delta:16410533180
Ticks: 2533780954 delta:358954
Ticks: 2533923283 delta:501283
Ticks: 2533909033 delta:487033
--
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https://bugs.launchpad.net/bugs/1307473
Title:
guest hang due to missing clock interrupt
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Re: [Bug 1307473] Re: guest hang due to missing clock interrupt
Great, thanks for the test case! Tried this with current git.qemu.org git HEAD on a trusty kernel, was not able to reproduce. Trying on another host. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
I tried using 2.0.0~rc1+dfsg-0ubuntu3, using a trusty livecd iso, using the command kvm -hda x.img -cdrom ubuntu-13.10-desktop-amd64.iso -m 1024 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -rtc base=localtime but still have not seen this. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
However, you mention that you have your VM pinned to CPU 1, while the command line is doing '-cpu 4'. When I run a VM with -cpu 4 locked to a single physical cpu, it definately does not do well. I'm not sure whether to call that a bug or mis-use. Example: cgm create cpuset qemu cgm setvalue cpuset qemu cpuset.cpus 0 cgm movepid cpuset qemu $$ kvm -hda x.img -cdrom ubuntu-13.10-desktop-amd64.iso -m 1024 -realtime mlock=off -smp 4,sockets=1,cores=4,threads=1 -rtc base=localtime (resulting VM hangs; without the -smp 4,sockets=1,cores=4,threads=1' it runs fine.) -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
Reproduced just as easily with qemu.org git HEAD. Again, this appears to only be a case when using -smp 4 while locking to 1 cpu with cpuset. ** Also affects: qemu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
just to clarify, i was pinning my test code inside the guest with taskset -c 1. There was no pinning on the host side. Also, i see the same issue with -smp 2. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1307473/+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 1307473] Re: guest hang due to missing clock interrupt
** Changed in: qemu (Ubuntu) Importance: Undecided = High -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to qemu in Ubuntu. https://bugs.launchpad.net/bugs/1307473 Title: guest hang due to missing clock interrupt To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1307473/+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
