[Bug 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
*** This bug is a duplicate of bug 1346917 *** https://bugs.launchpad.net/bugs/1346917 I'm using Ubuntu 14.04.1 and was using kernel 3.13 and after upgraded to 3.16, no more problems. -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
I believe this is a duplicate of bug 1346917. A test kernel has been built in comment #1 of that bug. Please test with this, if it fixes your issue mark this bug as a duplicate of 1346917. This fix will make it most likely into linux 3.13.0-33. 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
*** This bug is a duplicate of bug 1346917 *** https://bugs.launchpad.net/bugs/1346917 ** This bug has been marked a duplicate of bug 1346917 Using KSM on NUMA capable machines can cause KVM guest performance and stability issues -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
Installing 3.14.1 as per comment #17 fixed these connectivity issues for us as well, but it doesn't look like the 3.14.1 kernel made it anywhere near the 14.04.1 release. There is also no mention of this or any related bugs in https://wiki.ubuntu.com/TrustyTahr/ReleaseNotes/ChangeSummary/14.04.1. What else can we do except manually install 3.14.1, which is obviously not a proper solution? -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
Hi Matt, should these packages be upgraded in host or in kvm vm? 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
Sorry, see it. Should on host. -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
This kernel (3.14.1) solve trouble. Should expect fix in the official repositories? -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
#17: This kernel is built in april. Fresh version is not available? -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
I've since upgraded to the 3.14.1 kernel that will be in ubuntu 14.04.01 which has fixed the problem for me. -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
#14: Upgraded host or virtual machine or both? -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
#14: Vanilla kernel or from ubuntu git? -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
Upgraded host kernel from mainline ppa. https://wiki.ubuntu.com/Kernel/MainlineBuilds [64-Bit hosts] wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14.1-trusty/linux-headers-3.14.1-031401-generic_3.14.1-031401.201404141220_amd64.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14.1-trusty/linux-headers-3.14.1-031401_3.14.1-031401.201404141220_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14.1-trusty/linux-image-3.14.1-031401-generic_3.14.1-031401.201404141220_amd64.deb sudo dpkg -i *.deb reboot [32-Bit hosts] wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14.1-trusty/linux-headers-3.14.1-031401-generic_3.14.1-031401.201404141220_i386.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14.1-trusty/linux-headers-3.14.1-031401_3.14.1-031401.201404141220_all.deb http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.14.1-trusty/linux-image-3.14.1-031401-generic_3.14.1-031401.201404141220_i386.deb sudo dpkg -i *.deb reboot -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
Same trouble as in #10 comment. In addition periodically packet loss 1-5%. Used two virtual machines - if shutdown second maching - first works more stable. -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: linux (Ubuntu) Status: New = 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
I can also confirm this bug. Periodical packets loss with virtio driver. Ubuntu Server 14.04 LTS as guest and host. -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
I am seeing a similar issue but instead of the network breaking I get very variable latency. It's like the VM is pausing. This only happens with virtio networking. Switching to e1000 fixes the issue. Ubuntu 14.04 3.13.0-30-generic on both the host machines and VM's with bridge networking. 64 bytes from 10.3.0.2: icmp_seq=59 ttl=64 time=0.717 ms 64 bytes from 10.3.0.2: icmp_seq=60 ttl=64 time=0.706 ms 64 bytes from 10.3.0.2: icmp_seq=61 ttl=64 time=0.454 ms 64 bytes from 10.3.0.2: icmp_seq=62 ttl=64 time=0.635 ms 64 bytes from 10.3.0.2: icmp_seq=63 ttl=64 time=0.707 ms 64 bytes from 10.3.0.2: icmp_seq=64 ttl=64 time=2333 ms # Starts here 64 bytes from 10.3.0.2: icmp_seq=65 ttl=64 time=856 ms 64 bytes from 10.3.0.2: icmp_seq=66 ttl=64 time=350 ms 64 bytes from 10.3.0.2: icmp_seq=67 ttl=64 time=80.1 ms 64 bytes from 10.3.0.2: icmp_seq=68 ttl=64 time=12.5 ms 64 bytes from 10.3.0.2: icmp_seq=69 ttl=64 time=2.71 ms 64 bytes from 10.3.0.2: icmp_seq=70 ttl=64 time=1.71 ms 64 bytes from 10.3.0.2: icmp_seq=71 ttl=64 time=0.597 ms 64 bytes from 10.3.0.2: icmp_seq=72 ttl=64 time=0.729 ms 64 bytes from 10.3.0.2: icmp_seq=73 ttl=64 time=0.727 ms 64 bytes from 10.3.0.2: icmp_seq=74 ttl=64 time=0.642 ms 64 bytes from 10.3.0.2: icmp_seq=75 ttl=64 time=0.715 ms 64 bytes from 10.3.0.2: icmp_seq=76 ttl=64 time=0.715 ms 64 bytes from 10.3.0.2: icmp_seq=77 ttl=64 time=0.776 ms 64 bytes from 10.3.0.2: icmp_seq=78 ttl=64 time=0.742 ms 64 bytes from 10.3.0.2: icmp_seq=79 ttl=64 time=0.770 ms -- 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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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 1325560] Re: kvm virtio netdevs lose network connectivity under enough load
** Summary changed: - kvm vm loses network connectivity under enough load + kvm virtio netdevs lose network connectivity under enough load ** Changed in: linux (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/1325560 Title: kvm virtio netdevs lose network connectivity under enough load To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1325560/+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
