This bug is awaiting verification that the linux- aws-5.15/5.15.0-1046.51~20.04.1 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-focal-linux- aws-5.15' to 'verification-done-focal-linux-aws-5.15'. If the problem still exists, change the tag 'verification-needed-focal-linux-aws-5.15' to 'verification-failed-focal-linux-aws-5.15'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: kernel-spammed-focal-linux-aws-5.15-v2 verification-needed-focal-linux-aws-5.15 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-gke in Ubuntu. https://bugs.launchpad.net/bugs/2022098 Title: Severe NFS performance degradation after LP #2003053 Status in linux package in Ubuntu: Confirmed Status in linux-gke package in Ubuntu: Confirmed Status in linux source package in Focal: Fix Released Status in linux-gke source package in Focal: Fix Released Status in linux source package in Jammy: Fix Released Status in linux-gke source package in Jammy: Fix Released 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
