Hi Benjamin, The kernel team have built the next kernel update, and they have placed it in -proposed for verification.
The versions are 4.15.0-125-generic for Bionic, and 5.4.0-55-generic for Focal. Can you please schedule a maintenance window for the Launchpad git server, to install the new kernel in -proposed, and reboot into it, so we can verify that it fixes the problem. Instructions to install (On a Bionic system): Enable -proposed by running the following command to make a new sources.list.d entry: 1) cat << EOF | sudo tee /etc/apt/sources.list.d/ubuntu-bionic-proposed.list # Enable Ubuntu proposed archive deb http://archive.ubuntu.com/ubuntu/ bionic-proposed main EOF 2) sudo apt update 3) sudo apt install linux-image-4.15.0-125-generic linux-modules-4.15.0-125-generic \ linux-modules-extra-4.15.0-125-generic linux-headers-4.15.0-125-generic linux-headers-4.15.0-125 4) sudo reboot 5) uname -rv 4.15.0-125-generic #128-Ubuntu SMP Mon Nov 9 20:51:00 UTC 2020 6) sudo rm /etc/apt/sources.list.d/ubuntu-bionic-proposed.list 7) sudo apt update If you get a different uname, you may need to adjust your grub configuration to boot into the correct kernel. Also, since this is a production machine, make sure you remove the -proposed software source once you have installed the kernel. Let me know how this kernel performs, and if everything seems fine after a week we will mark the Launchpad bug as verified. The timeline for release to -updates is still set for the 30th of November, give or take a few days if any CVEs turn up. I believe this kernel should be live-patchable, although this may not be the case if the kernel is respun before release. Hopefully you will only have to schedule the maintenance window just the once. Thanks, Matthew -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1898786 Title: bcache: Issues with large IO wait in bch_mca_scan() when shrinker is enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1898786/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
