Ubuntu
linux package

  1. Bug #2003053
  2. Comment #21

Comment 21 for bug 2003053

Revision history for this message
Eirik Rye (striata) wrote (last edit ):

This patch appears to have caused a massive (thousandfold) increase in NFS ACCESS operations.

Tested with Ubuntu 20.04 and these kernels:

  5.4.0-144-generic
  5.15.0-67-generic

Downgrading to either 5.4.0-139-generic or 5.15.0-60-generic resolves the issue again.

One busy server using NFS went from an average of about 14 ACCESS operations per second to around 33 000 operations per second. This completely overwhelmed the NFS servers, making them practically unusable.