This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 2022098 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Changed in: linux (Ubuntu Focal) Status: New => Incomplete ** Changed in: linux (Ubuntu Jammy) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2022098 Title: Severe NFS performance degradation after LP #2003053 Status in linux package in Ubuntu: Incomplete Status in linux-gke package in Ubuntu: New Status in linux source package in Focal: In Progress Status in linux-gke source package in Focal: Fix Committed Status in linux source package in Jammy: In Progress Status in linux-gke source package in Jammy: Fix Committed Bug description: The fix to LP #2003053 has caused massively increased NFS server access in some use-cases, which caused severe performance degradation to the point of being unusable in some cases. The solution to this issue, at least temporarily and at least for linux-gke, is to make the new behaviour optional using the "nfs_fasc=1" module parameter. Without this parameter specified, (or specified as =0) will keep the old behaviour. Regresion potential: - Regression potential is considered low considering the scope of the change and is limited to NFS only. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2022098/+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