Wondering if these additional trace points might be useful. Review and comments welcome. --- Chuck Lever (2): NFS: Introduce trace events triggered by page writeback errors NFS4: Report callback authentication errors fs/nfs/callback_xdr.c | 11 ++++++++--- fs/nfs/nfs4trace.h | 35 +++++++++++++++++++++++++++++++++++ fs/nfs/nfstrace.h | 45 +++++++++++++++++++++++++++++++++++++++++++++ fs/nfs/write.c | 3 +++ 4 files changed, 91 insertions(+), 3 deletions(-) -- Chuck Lever