Public bug reported: # lsb_release -rd Description: Ubuntu 14.04 LTS Release: 14.04
# apt-cache policy linux-image-generic linux-image-generic: Installiert: 3.13.0.29.35 Installationskandidat: 3.13.0.29.35 Versionstabelle: *** 3.13.0.29.35 0 500 http://de.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages 100 /var/lib/dpkg/status 3.13.0.24.28 0 500 http://de.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages This bug shows on a Fujitsu Primergy RX300 S6 server, upgraded from Ubuntu 12.04 Server (x86_64) to 14.04 Server (x86_64). When running linux-image-3.13.0-29-generic kernel on the server, kvm guests (Windows Server 2008R2, Ubuntu 14.04 Server, Gentoo) show poor performance ~3-4 hours after system boot. In some of the guests, there are messages about cpu soft lockups. This coincides with high load reported by kvm/libvirt for the guests. The problem does not appear when booting the server with mainline kernel linux-image-3.15.1-031501-generic from Ubuntu kernel PPA. ** Affects: linux-lts-trusty (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1333553 Title: linux-image-3.13.0-29-generic - soft lockup in kvm guests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-trusty/+bug/1333553/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs