Avamar NDMP errors

Hi all, I have configured an NDMP accelerator node in my environment.  I have an NS480 with several fileshares.  I created an ndmp user in the Celerra and ran avsetupndmp successfully on my accelerator node.  I then registered and now see a client for my cifs share.  I can browse the cifs client in the avamar gui and see all of my filesystems, so it would seem that I have configured everything correctly.  However when I kick off a backup of a single filesystem the backup appears to start correctly and even backs up a small amount of data (up to 6 gb, but this varies based on the filesystem I choose).  Then it just quits and leaves me with this info in the avtar log.

2009-12-16 14:47:35 avndmp Info <9510>: Opening file history '/usr/local/avamar/var/vdm5.nunet.neu.edu/filehist_pipe_11101' as pipe
2009-12-16 14:47:36 avndmp Info <9544>: Starting data transfer
2009-12-16 14:47:51 avndmp Info <0000>: NDMP Info: SnapSure file system creation succeeds
2009-12-16 14:48:57 avndmp Error <0000>: Lost pipe to avtar: Broken pipe
2009-12-16 14:48:57 avndmp Info <6651>: Process 11129 (/usr/local/avamar/bin/avtar) finished (Signal 11 exit - Segmentation fault)
2009-12-16 14:48:57 avndmp Warning <6653>: CTL workorder "MOD-1260993729449#0" non-zero exit status 'Signal 11 exit - Segmentation fault'
2009-12-16 14:48:59 avndmp Error <9571>: Premature end of child
2009-12-16 14:48:59 avndmp Error <9562>: Backup for target /root_vdm_2/Athletics/ had errors.
2009-12-16 14:48:59 avndmp Info <9563>: Closing NDMP session.
2009-12-16 14:48:59 avndmp Error <9469>: Snapup of /root_vdm_2/Athletics/ aborted due to 'Error during NDMP session'.
2009-12-16 14:48:59 avndmp Info <9471>: NDMP session result: avtar returned:157 'Miscellaneous error' ndmp returned:157 'Miscellaneous error'
2009-12-16 14:48:59 avndmp Info <7232>: Final summary generated subwork 1, cancelled/aborted 1, snapview 0, exitcode 157

Of course there is other information but everything else is just successful communication with the NAS device, proper listing of filesystems available etc.

Thanks,

Bryan