Another showstopper in 2.2.5

[Fredrik Ohrn]

Ok, here's another showstopper I have started to get alot over the last 
week.

Average user complains that that he can't open Word/Excel/PowerPoint 
document foo because it is already opened by another (unknown) user.
But he had no problems working with the document some time ago.

This happens a lot with Win98 clients and sometimes with WinXP but it's 
not as common.


After some digging I have figured out that the samba process serving the 
document the first time is dead BUT according to smbstatus samba still 
thinks the process is alive and the file locked...


A small example:

[root at olivia ~]# /usr/local/samba/bin/smbstatus | grep lottab
lottab       lottab   stdvgl    6887   studv-5-118 (129.16.xxx.xxx) Mon Aug 12 08:31:16 2002
6490   DENY_WRITE 0x1         RDONLY     NONE             /olivia/home3/stdvgl/lottab/netscape/rpclsvc_se.dll   Mon Aug 12 08:16:33 2002
6490   DENY_NONE  0x3         RDWR       NONE             /olivia/home3/stdvgl/lottab/eudora/EudPriv/Ads/Eudora.idx   Mon Aug 12 08:16:38 2002
<... lots more nixed ...>

Lets look for pid 6490

[root at olivia ~]# ps -ef | grep 6490
root      7240  7150  0 08:40 pts/4    00:00:00 grep 6490

Not found! Lets look for the username instead:

[root at olivia ~]# ps -ef | grep lottab
lottab    6887 18504  0 08:31 ?        00:00:00 /usr/local/samba/bin/smbd -D

Look mom! A new smbd process is now serving this user.


There is no trace what so ever in the logfile on why the smbd died.

Tonight I'll see if I can figure out a way to force the problem and use 
the panic action to get more clues. Does anyone have a good recepie for 
'panic action' that just dumps a backtrace into a logfile?


Regards,
Fredrik

-- 
   "It is easy to be blinded to the essential uselessness of computers by
   the sense of accomplishment you get from getting them to work at all."
                                                   - Douglas Adams

Fredrik Öhrn                               Chalmers University of Technology
ohrn at chl.chalmers.se                                                  Sweden