[Samba] smbclient's tar_re_search broken?

[Luis Benvenutto]

Hi all,
My old and stable backup script don't work anymore.
It's based on smbclient's tar command using crX parameters for creating
archive, excluding files based on basic regular expressions.
The box is running Fedora core 2, fully updated:
kernel-2.6.8-1.521
samba-common-3.0.7-2.FC2
samba-client-3.0.7-2.FC2
The error is easily reproducible:

smbclient //ntpdc/share -A credfile \
 -c "tar crX ntpdc.share.tar *.tmp"

exits with error 139. Output is:

tar_re_search set
                directory \subdir\
Segmentation fault

Is regular expression exclusion broken?
Thanks in advance,
l.