This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- trusty' to 'verification-done-trusty'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-trusty ** Tags added: verification-needed-utopic -- 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/1398596 Title: [Revert] arm64: optimized copy_to_user and copy_from_user assembly code Status in linux package in Ubuntu: Triaged Status in linux source package in Trusty: Triaged Status in linux source package in Utopic: Triaged Bug description: [Impact] Fixes an issue where the kernel hits unhandled pagefaults when copy_to_user is called. http://www.spinics.net/lists/arm-kernel/msg381811.html [Test Case] Put the system under memory pressure. [Regression Potential] It will cause a performance regression on certain workloads on arm64 systems. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1398596/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp

