I have some evidences that potentially we have even more serious trouble with ZFS on Ubuntu Noble 6.8 kernel.
Some time ago LXD team has got a report about LXCFS processes crashes: https://github.com/lxc/lxcfs/issues/644 After spending really a lot of time checking everything from our side (in LXCFS) I started to have a feeling that problem can be with the kernel (memory corruption). Issue reported was using all standard Ubuntu Noble packages - ZFS from Noble and kernel from Noble. Also LXD v5.21.1 LTS snap. I've instructed him to try an upstream version of ZFS module with the same kernel (no luck there). Then, I've instructed user to try an recent upstream Linux kernel version (same, no luck). Then user downgraded to 6.6.x series kernel + upstream recent ZFS. And LXCFS stopped crashing and everything works just fine for him. And that's without any changes on the LXD snap side (LXCFS, LXC, LXD - all the same!) Now we have another report: https://github.com/canonical/lxd/issues/14178 I decided to share this information in this issue instead of filling a new one so we can collect all the problems with ZFS on a new kernels in one place. To conclude: all points that we have a bug in ZFS which leads to a kernel/userspace memory corruption... ** Bug watch added: LXCFS bug tracker #644 https://github.com/lxc/lxcfs/issues/644 ** Bug watch added: github.com/canonical/lxd/issues #14178 https://github.com/canonical/lxd/issues/14178 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2077926 Title: crash in openzfs - 2.2.2 not supported on 6.8 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/2077926/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
