[ale] Samba: file corruption on write to share followed by hang

[Jeff Hubbs]

Troubling behavior under Samba 3.0.33:  when a certain win2K user opened 
an excel file and saved it, it showed to be corrupted on the next open.  
If same user simply dragged a file down from the Samba share and dragged 
it back, the file had changed (shown by md5sum) even if the size were 
the same.  I was troubleshooting this when a few hours later, all 
authentication and share access hung up.  I shelled into the server and 
a ps aux would only get so far and hang w/o completing.  Top would not 
start - no output, just hang.  Restarted samba; everything started 
working again and the file corruption on share went away (by "went 
away", I mean that the files weren't being changed anymore when written 
back to the server).  What the hey??

FWIW, the server had been up for 91 days in a 150-200 user office.  I 
don't think Samba had been restarted in that time.