Hi, I have started using Ganesha a bit more intensely than usual under Ubuntu LTS 14 (kernel 4.4.0-nnn) and 16 (kernel 4.15-nn) and I was astonished to see that 'rm -r' of a directory hierarchy returned that some files were not deleted, and 1-2 repeats were needed (mounted with NFSv4, TCP, 'sec=sys'). Investigating it I saw that 'ls' of a directory often (usually) did not return all entries in a directory. Indeed using 'strace' both 'rm' and 'ls' showed missing entries from 'getdents'(2). Looking at packet captures shows that this happens to READDIR responses that are split in several parts, and the entry omitted is always the last one in each part. But sometimes it is not omitted by the client. This omission never happens with the 'nfs-kernel-server'. The omission is highly repeatable for a given directory and client, but the omitted entries depend on the client and the number of entries in a directory. On one client for example it was consistently every 40th entry (because each part contained 40 entries). No entries are omitted when the client is Fedora 30 with kernel 5.2.nn or with GRML 2018.12 or Parrot 4.7 (kernel 4.19.nn in both cases). My investigations, with the good assistance of a couple of people from the #Ganesha IRC channel, seem to show that this is a bug in the Ubuntu kernel 'nfs' kernel filesystem, but since 'nfs-kernel-server' does not trigger it, it gives the impression that it is Ganesha that is unreliable, so a workaround within Ganesha might be useful. I have made a TCP trace here of a 'ls' of a directory with 90 entries: http://www.sabi.co.uk/xtmp/nfs-ganesha-ext4-miss_32_51_70.pcap On one client the missing entries are "0032" (packet 82), "0051" (packet 87) and "0070" (packet 92), all of which are the last entry in their part of the response; curiously entries "0013" and "0088" the last entry their parts of the response but are listed by the 'nfs' client. I am not familiar enough with the NFS v4 protocol to reliably spot any differences that might trigger that bug, but I had a look and I cannot see any. BTW I had a look at potentially relevant commits from the kernel 'git' and no obvious point, but these commits may be relevant: 02ef04e432babf8fc703104212314e54112ecd2d 98de9ce6f6660d02aa72d7b9b17696fa68a2ed9b