[Samba] strange permission denied problem

[Yan Seiner <yan@xxxxxxxxxx>]

I built an embedded box which uses mount.cifs to mount network 
shares.    I've shipped several of these and all are working fine except 
for one, which gives me permission denied on certain files:

root@Mnemosyne:~/mnt/bgrp1/c/Ballance Group Folders/Scully/Client 
Photos-Scully# cat "Office Pics 002.jpg" > /dev/null
cat: Office Pics 002.jpg: Permission denied
root@Mnemosyne:~/mnt/bgrp1/c/Ballance Group Folders/Scully/Client 
Photos-Scully# cat "Iron & Concrete Table.jpg" > /dev/null
root@Mnemosyne:~/mnt/bgrp1/c/Ballance Group Folders/Scully/Client 
Photos-Scully#

So only the Office Pics file gets a permission denied.

root@Mnemosyne:~/mnt/bgrp1/c/Ballance Group Folders/Scully/Client 
Photos-Scully# ls -al
dr-xr-x---    1 root     root            0 Mar 28 14:22 .
dr-xr-x---    1 root     root            0 Mar 27 17:35 ..
-r--r-----    1 root     root       113826 Mar  3 16:26 Iron & Concrete 
Table.jpg
-r--r-----    1 root     root       744886 Feb 21 16:14 Nightstands.jpg
-r--r-----    1 root     root       765452 Feb 15 19:09 Occhio Chair.jpg
-r--r-----    1 root     root        90670 Mar 28 14:22 Office Pics 002.jpg

cat /proc/mounts  says:
//bgrp1/c /tmp/mnt/bgrp1/c cifs 
ro,mand,nodiratime,unc=\\bgrp1\c,username=root,domain=,rsize=4100,wsize=4100 
0 0

and the mount line itself is
mount.cifs "//$server/$wshare" /tmp/mnt/$server/$lshare -o 
ip=$target,guest,ro,file_mode=0440,dir_mode=0550

I can't for the life of me figure out why some files give me a 
permission denied.  I have no physical access to the problem box; here's 
what I know:

------------------------------------------+
Looking up status of 192.168.0.2
   BGRP1           <00> -         B <ACTIVE>
   MSHOME          <00> - <GROUP> B <ACTIVE>
   BGRP1           <20> -         B <ACTIVE>
   MSHOME          <1e> - <GROUP> B <ACTIVE>
   MSHOME          <1d> -         B <ACTIVE>
   ..__MSBROWSE__. <01> - <GROUP> B <ACTIVE>

   MAC Address = 00-19-DB-A6-43-23

------------------------------------------+

   Sharename       Type      Comment
   ---------       ----      -------
   IPC$            IPC       Remote IPC
   D$              Disk      Default share
   C               Disk     
   Ballance Group Folders Disk     
   F               Disk     
   ADMIN$          Disk      Remote Admin
   C$              Disk      Default share

   Server               Comment
   ---------            -------

   Workgroup            Master

How do I go about diagnosing this?

Thanks,

--Yan

--
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 (_)\(_)        ,>/'_        o__
Yan Seiner      (_)\(_)       ,>/'_     o__
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Who says engineers have to be pencil necked geeks?  (_)\(_)

Help out my kids' school: http://www.seiner.com/blog/Travels/

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