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
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https://bugs.launchpad.net/bugs/1333553
Title:
linux-image-3.13.0-29-generic - soft lockup in kvm guests
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