Public bug reported: [Impact]
The 5.8 kernel (groovy) is not still 100% reliable with hibernation, especially on the Xen instance type. However, re-aligning the config options as much as possible with the 5.4 kernel (focal) allows to hibernate and resume with a success rate close to 100% (according to our tests on the AWS cloud). [Test case] - spin up an AWS instance (for example a c4.8xlarge instance type) - run a memory stress test - hibernate - resume - verify that the system has been resumed correctly and the memory stress test is still running [Fix] Identify the minimum subset of config changes that we need to apply to the 5.8 kernel to make hibernation as reliable as 5.4. [Regression potential] Still need to be evaluated exactly, probably we will have to apply only .config changes, so regression potential will be minimal. ** Affects: linux-aws (Ubuntu) Importance: Undecided Status: New ** Affects: linux-aws (Ubuntu Groovy) Importance: Undecided Status: New ** Also affects: linux-aws (Ubuntu Groovy) 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/1902926 Title: aws: improve hibernation reliability in groovy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-aws/+bug/1902926/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs