smbmount freezes ls only the first time

[Robert William Hutton <rwh@helms-deep.cable.nu>]

I've been having problems with smbmount.  I've noticed this on both my desktop 
and laptop computers.  Both are running sid, updated regularly.  The symptoms of 
the problem are:

- mount a share (either from samba on a linux server or from a windows server)
- cd to the mount point
- type ls
- ls freezes!

when I do a ps aux, the ls comes up as:

rwh       6288  0.0  0.1  1996  592 pts/6    D+   16:29   0:00 ls --color=auto

So it's gone into an uninterruptable sleep, which generally means it's waiting 
on IO.  I can't kill it with ctrl-C or ctrl-\, nor with a kill or kill -9.

Now, here's the kicker.  If I go mount the share elsewhere, it works fine!  I've 
had a bit of a poke around in the logs, but haven't found anything useful.  Is 
there a way that I can increase the debug level of the smbmount process?

Thanks,

Rob.