Since on the NFS clients we don't really use ACL (we connect using NFSv3, and the extensions for Linux-nfs ACLs aren't implented in Ganesha), I switched to Disable_ACL=TRUE. The warning messages about premission retrieval wen away. But we stil have problems with our NFS-Ganesha servers. The last day, we had segmentation faults that caused the service to interrupt Jun 17 09:06:19 gluster1 kernel: [1254485.472446] traps: ganesha.nfsd[20890] general protection ip:5626d6a5f6a7 sp:7f4d37f65790 error:0 Jun 17 09:06:19 gluster1 kernel: [1254485.472476] in ganesha.nfsd[5626d693e000+19c000] Jun 17 09:06:19 gluster1 systemd[1]: nfs-ganesha.service: Main process exited, code=killed, status=11/SEGV Jun 17 09:06:19 gluster1 systemd[1]: nfs-ganesha.service: Unit entered failed state. Jun 18 06:37:58 gluster1 kernel: [1331984.585840] traps: ganesha.nfsd[10178] general protection ip:55b1a4b095b5 sp:7f6532bf9f80 error:0 Jun 18 06:37:58 gluster1 kernel: [1331984.585862] in ganesha.nfsd[55b1a4a6e000+19c000] Jun 18 06:37:58 gluster1 systemd[1]: nfs-ganesha.service: Main process exited, code=killed, status=11/SEGV Jun 18 06:37:58 gluster1 systemd[1]: nfs-ganesha.service: Unit entered failed state.