home *** CD-ROM | disk | FTP | other *** search
- Contributor: Samba Team
- Updated: June 27, 1997
-
- Subject: This file describes how to report Samba bugs.
- ============================================================================
-
- >> The email address for bug reports is samba-bugs@samba.anu.edu.au <<
-
- Please take the time to read this file before you submit a bug
- report. Also, please see if it has changed between releases, as we
- may be changing the bug reporting mechanism at some time.
-
- Please also do as much as you can yourself to help track down the
- bug. Samba is maintained by a dedicated group of people who volunteer
- their time, skills and efforts. We receive far more mail about it than
- we can possibly answer, so you have a much higher chance of an answer
- and a fix if you send us a "developer friendly" bug report that lets
- us fix it fast.
-
- Do not assume that if you post the bug to the comp.protocols.smb
- newsgroup or the mailing list that we will read it. If you suspect that your
- problem is not a bug but a configuration problem then it is better to send
- it to the Samba mailing list, as there are (at last count) 5000 other users on
- that list that may be able to help you.
-
- You may also like to look though the recent mailing list archives,
- which are conveniently accessible on the Samba web pages
- at http://samba.canberra.edu.au/pub/samba/
-
-
- GENERAL INFO
- ------------
-
- Before submitting a bug report check your config for silly
- errors. Look in your log files for obvious messages that tell you that
- you've misconfigured something and run testparm to test your config
- file for correct syntax.
-
- Have you run through DIAGNOSIS.txt? This is very important.
-
- If you include part of a log file with your bug report then be sure to
- annotate it with exactly what you were doing on the client at the
- time, and exactly what the results were.
-
-
- DEBUG LEVELS
- ------------
-
- If the bug has anything to do with Samba behaving incorrectly as a
- server (like refusing to open a file) then the log files will probably
- be very useful. Depending on the problem a log level of between 3 and
- 10 showing the problem may be appropriate. A higher level givesmore
- detail, but may use too much disk space.
-
- To set the debug level use "log level =" in your smb.conf. You may
- also find it useful to set the log level higher for just one machine
- and keep separate logs for each machine. To do this use:
-
- log level = 10
- log file = /usr/local/samba/lib/log.%m
- include = /usr/local/samba/lib/smb.conf.%m
-
- then create a file "/usr/local/samba/lib/smb.conf.machine" where
- "machine" is the name of the client you wish to debug. In that file
- put any smb.conf commands you want, for example "log level=" may be
- useful. This also allows you to experiment with different security
- systems, protocol levels etc on just one machine.
-
- The smb.conf entry "log level =" is synonymous with the entry
- "debuglevel =" that has been used in older versions of Samba and
- is being retained for backwards compatibility of smb.conf files.
-
- As the "log level =" value is increased you will record a significantly
- increasing level of debugging information. For most debugging operations
- you may not need a setting higher than 3. Nearly all bugs can be tracked
- at a setting of 10, but be prepared for a VERY large volume of log data.
-
-
- INTERNAL ERRORs
- ---------------
-
- If you get a "INTERNAL ERROR" message in your log files it means that
- Samba got an unexpected signal while running. It is probably a
- segmentation fault and almost certainly means a bug in Samba (unless
- you have faulty hardware or system software)
-
- If the message came from smbd then it will probably be accompanied by
- a message which details the last SMB message received by smbd. This
- info is often very useful in tracking down the problem so please
- include it in your bug report.
-
- You should also detail how to reproduce the problem, if
- possible. Please make this reasonably detailed.
-
- You may also find that a core file appeared in a "corefiles"
- subdirectory of the directory where you keep your samba log
- files. This file is the most useful tool for tracking down the bug. To
- use it you do this:
-
- gdb smbd core
-
- adding appropriate paths to smbd and core so gdb can find them. If you
- don't have gdb then try "dbx". Then within the debugger use the
- command "where" to give a stack trace of where the problem
- occurred. Include this in your mail.
-
- If you known any assembly language then do a "disass" of the routine
- where the problem occurred (if its in a library routine then
- disassemble the routine that called it) and try to work out exactly
- where the problem is by looking at the surrounding code. Even if you
- don't know assembly then incuding this info in the bug report can be
- useful.
-
-
- ATTACHING TO A RUNNING PROCESS
- ------------------------------
-
- Unfortunately some unixes (in particular some recent linux kernels)
- refuse to dump a core file if the task has changed uid (which smbd
- does often). To debug with this sort of system you could try to attach
- to the running process using "gdb smbd PID" where you get PID from
- smbstatus. Then use "c" to continue and try to cause the core dump
- using the client. The debugger should catch the fault and tell you
- where it occurred.
-
-
- PATCHES
- -------
-
- The best sort of bug report is one that includes a fix! If you send us
- patches please use "diff -u" format if your version of diff supports
- it, otherwise use "diff -c4". Make sure your do the diff against a
- clean version of the source and let me know exactly what version you
- used.
-
-