The only problem seems to be the higher load. But you can disable it and enable a timer instead if you want.
The fix does not seem to have been included in 6.8.0-52-generic. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to zfs-linux in Ubuntu. https://bugs.launchpad.net/bugs/2057693 Title: Activating autotrim results in high load average due to uninterruptible threads Status in Native ZFS for Linux: Fix Released Status in zfs-linux package in Ubuntu: Fix Released Status in zfs-linux source package in Noble: In Progress Bug description: SRU Justification [Impact] * High load averages when activating autotrim. Logs included below SRU justification [Fix] * Cherry-pick a0aa7a2ee3b5: "Autotrim High Load Average Fix" [Test Plan] * Compile tested * Run through autopkgtest regression tests [Regression potential] * Changes isolated, minimal regression risk. Changes already in upstream ZFS When activating the autotrim feature on any ZFS version starting from 2.2.0 this will lead to a permanent increase of the load average (as diplayed in top) due to an uninterruptible vdev_autotrim thread for each vdev capable of TRIM. This issue has been reported (https://github.com/openzfs/zfs/issues/15453) as well as fixed (https://github.com/openzfs/zfs/pull/15781) upstream but the fix is not yet backported to Ubuntu. Since this bug was introduced with version 2.2.0 both mantic as well as noble are affected. How to reproduce: 1. Create a pool with at least one TRIM-capable device 2. run "zpool set autotrim=on <pool>" 3. watch the output of "top" or "runtime" and see how the load average increases permanently even when the system is idle by one per vdev 4. running "ps aux | grep -w D" will show the broken threads: [root@test ~]# ps aux | grep -w D\< root 7193 0.0 0.0 0 0 ? D< 13:07 0:00 [vdev_autotrim] To manage notifications about this bug go to: https://bugs.launchpad.net/zfs/+bug/2057693/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
