[Kernel-packages] [Bug 1536837] Re: Severe performance regression in Infiniband or IPoIB
https://bugzilla.kernel.org/show_bug.cgi?id=111921 may be of interest. ** Bug watch added: Linux Kernel Bug Tracker #111921 http://bugzilla.kernel.org/show_bug.cgi?id=111921 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1536837 Title: Severe performance regression in Infiniband or IPoIB Status in linux package in Ubuntu: Incomplete Bug description: When upgrading to the latest 4.4 test kernel from mainline development, all IPoIB links showed a severe performance regression as compared with kernel 4.2. The bandwidth of each link dropped from around 3Gbps to around 3Mbps (3 orders of magnitude worse!); reverting to the 4.2 kernel immediately fixed this problem. The 4.3 kernel from Debian does not appear to suffer from this regression. The regression shows up on both IB ports of the Mellanox MT25208 controller. Other hardware has not been tested. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1536837/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1536837] Re: Severe performance regression in Infiniband or IPoIB
This appears to be an upstream kernel bug, and not limited to just Ubuntu/Debian. I'm currently running Arch Linux and this regression showed up in the 4.4 kernel. The last known good kernel version was 4.3.3. Kernel versions that have the issue include 4.4.1 and 4.5rc1. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1536837 Title: Severe performance regression in Infiniband or IPoIB Status in linux package in Ubuntu: Incomplete Bug description: When upgrading to the latest 4.4 test kernel from mainline development, all IPoIB links showed a severe performance regression as compared with kernel 4.2. The bandwidth of each link dropped from around 3Gbps to around 3Mbps (3 orders of magnitude worse!); reverting to the 4.2 kernel immediately fixed this problem. The 4.3 kernel from Debian does not appear to suffer from this regression. The regression shows up on both IB ports of the Mellanox MT25208 controller. Other hardware has not been tested. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1536837/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1531265] [NEW] package linux-image-3.19.0-43-generic 3.19.0-43.49~14.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
Public bug reported: Error on boot ProblemType: Package DistroRelease: Ubuntu 14.04 Package: linux-image-3.19.0-43-generic 3.19.0-43.49~14.04.1 ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2 Uname: Linux 3.19.0-25-generic i686 ApportVersion: 2.14.1-0ubuntu3.19 Architecture: i386 Date: Tue Jan 5 14:09:59 2016 ErrorMessage: subprocess installed post-installation script returned error exit status 2 InstallationDate: Installed on 2015-10-03 (93 days ago) InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta i386 (20150805) RelatedPackageVersions: dpkg 1.17.5ubuntu5.5 apt 1.0.1ubuntu2.10 SourcePackage: linux-lts-vivid Title: package linux-image-3.19.0-43-generic 3.19.0-43.49~14.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2 UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux-lts-vivid (Ubuntu) Importance: Undecided Status: New ** Tags: apport-package i386 trusty -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-lts-vivid in Ubuntu. https://bugs.launchpad.net/bugs/1531265 Title: package linux-image-3.19.0-43-generic 3.19.0-43.49~14.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2 Status in linux-lts-vivid package in Ubuntu: New Bug description: Error on boot ProblemType: Package DistroRelease: Ubuntu 14.04 Package: linux-image-3.19.0-43-generic 3.19.0-43.49~14.04.1 ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2 Uname: Linux 3.19.0-25-generic i686 ApportVersion: 2.14.1-0ubuntu3.19 Architecture: i386 Date: Tue Jan 5 14:09:59 2016 ErrorMessage: subprocess installed post-installation script returned error exit status 2 InstallationDate: Installed on 2015-10-03 (93 days ago) InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta i386 (20150805) RelatedPackageVersions: dpkg 1.17.5ubuntu5.5 apt 1.0.1ubuntu2.10 SourcePackage: linux-lts-vivid Title: package linux-image-3.19.0-43-generic 3.19.0-43.49~14.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-vivid/+bug/1531265/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
