Public bug reported: >From trusty through to vivid there is a copy_to/from_user patch that improved performance on the m400. This patch was not pushed into wily's 4.2 kernel as a new one was nearing upstream acceptance. That patch has now landed in linux-next and needs to be backported to wily's 4.2 kernel.
** Affects: linux (Ubuntu) Importance: Undecided Assignee: Craig Magina (craig.magina) Status: In Progress ** Changed in: linux (Ubuntu) Status: New => In Progress ** Changed in: linux (Ubuntu) Assignee: (unassigned) => Craig Magina (craig.magina) ** Summary changed: - arm64 performance regression in wily 4.2 kernel on m400 due to dropped patch + [SRU] arm64 performance regression in wily 4.2 kernel on m400 due to dropped patch -- 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/1508471 Title: [SRU] arm64 performance regression in wily 4.2 kernel on m400 due to dropped patch Status in linux package in Ubuntu: In Progress Bug description: From trusty through to vivid there is a copy_to/from_user patch that improved performance on the m400. This patch was not pushed into wily's 4.2 kernel as a new one was nearing upstream acceptance. That patch has now landed in linux-next and needs to be backported to wily's 4.2 kernel. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1508471/+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