The Bionic 4.15.0-12 kernel is based off of upstream 4.15.7. Can you test that kernel as well? That will tell us if the fix in Bionic is an Ubuntu SAUCE patch or a 4.15 stable update.
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15.7/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1757565 Title: btrfs and tar sparse truncate archives To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1757565/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
