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| author | Jelmer Vernooij <jelmer@samba.org> | 2003-08-15 18:26:34 +0000 |
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| committer | Jelmer Vernooij <jelmer@samba.org> | 2003-08-15 18:26:34 +0000 |
| commit | d069dacb6e17866dd5d3862e1837a9cae008644f (patch) | |
| tree | c1b660005d31583819c7f43f79168a3332150a85 /docs/htmldocs/bugreport.html | |
| parent | cedd66b6e67f4c463eaa072f0e6d87ee1f55718e (diff) | |
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diff --git a/docs/htmldocs/bugreport.html b/docs/htmldocs/bugreport.html new file mode 100644 index 0000000000..49eb2117ca --- /dev/null +++ b/docs/htmldocs/bugreport.html @@ -0,0 +1,115 @@ +<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Chapter 35. Reporting Bugs</title><link rel="stylesheet" href="samba.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.60.1"><link rel="home" href="samba-doc.html" title="SAMBA Project Documentation"><link rel="up" href="troubleshooting.html" title="Part V. Troubleshooting"><link rel="previous" href="problems.html" title="Chapter 34. Analysing and solving samba problems"><link rel="next" href="Appendixes.html" title="Part VI. Appendixes"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 35. Reporting Bugs</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="problems.html">Prev</a> </td><th width="60%" align="center">Part V. Troubleshooting</th><td width="20%" align="right"> <a accesskey="n" href="Appendixes.html">Next</a></td></tr></table><hr></div><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="bugreport"></a>Chapter 35. Reporting Bugs</h2></div><div><div class="author"><h3 class="author"><span class="firstname">Jelmer</span> <span class="othername">R.</span> <span class="surname">Vernooij</span></h3><div class="affiliation"><span class="orgname">The Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:jelmer@samba.org">jelmer@samba.org</a>></tt></p></div></div></div></div><div><div class="author"><h3 class="author"><span class="firstname">Andrew</span> <span class="surname">Tridgell</span></h3><div class="affiliation"><span class="orgname">Samba Team<br></span><div class="address"><p><tt class="email"><<a href="mailto:tridge@samba.org">tridge@samba.org</a>></tt></p></div></div></div></div><div><p class="pubdate"> 27 June 1997 </p></div></div><div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><a href="bugreport.html#id2960613">Introduction</a></dt><dt><a href="bugreport.html#id2960681">General info</a></dt><dt><a href="bugreport.html#id2960718">Debug levels</a></dt><dt><a href="bugreport.html#id2960926">Internal errors</a></dt><dt><a href="bugreport.html#id2961060">Attaching to a running process</a></dt><dt><a href="bugreport.html#id2961107">Patches</a></dt></dl></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2960613"></a>Introduction</h2></div></div><div></div></div><p>Please report bugs using + <a href="https://bugzilla.samba.org/" target="_top">bugzilla</a>.</p><p> +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. +</p><p> +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. +</p><p> +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. +</p><p> +You may also like to look though the recent mailing list archives, +which are conveniently accessible on the Samba web pages +at <a href="http://samba.org/samba/" target="_top">http://samba.org/samba/</a>. +</p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2960681"></a>General info</h2></div></div><div></div></div><p> +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. +</p><p> +Have you run through the <a href="diagnosis.html" title="Chapter 33. The Samba checklist">diagnosis</a>? +This is very important. +</p><p> +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. +</p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2960718"></a>Debug levels</h2></div></div><div></div></div><p> +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 gives more +detail, but may use too much disk space. +</p><p> +To set the debug level use the <a class="indexterm" name="id2960739"></a><i class="parameter"><tt>log level</tt></i> in your +<tt class="filename">smb.conf</tt>. 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 add the following lines to your main <tt class="filename">smb.conf</tt> file: +</p><table class="simplelist" border="0" summary="Simple list"><tr><td><i class="parameter"><tt>log level = 10</tt></i></td></tr><tr><td><i class="parameter"><tt>log file = /usr/local/samba/lib/log.%m</tt></i></td></tr><tr><td><i class="parameter"><tt>include = /usr/local/samba/lib/smb.conf.%m</tt></i></td></tr></table><p> +then create a file +<tt class="filename">/usr/local/samba/lib/smb.conf.<i class="replaceable"><tt>machine</tt></i></tt> where +<i class="replaceable"><tt>machine</tt></i> is the name of the client you wish to debug. In that file +put any <tt class="filename">smb.conf</tt> commands you want, for example +<a class="indexterm" name="id2960830"></a><i class="parameter"><tt>log level</tt></i> may be useful. This also allows you to +experiment with different security systems, protocol levels etc on just +one machine. +</p><p> +The <tt class="filename">smb.conf</tt> entry <a class="indexterm" name="id2960857"></a><i class="parameter"><tt>log level</tt></i> +is synonymous with the parameter <a class="indexterm" name="id2960872"></a><i class="parameter"><tt>debuglevel</tt></i> that has +been used in older versions of Samba and is being retained for backwards +compatibility of <tt class="filename">smb.conf</tt> files. +</p><p> +As the <a class="indexterm" name="id2960897"></a><i class="parameter"><tt>log level</tt></i> 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 +<tt class="constant">3</tt>. Nearly +all bugs can be tracked at a setting of <tt class="constant">10</tt>, but be +prepared for a VERY large volume of log data. +</p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2960926"></a>Internal errors</h2></div></div><div></div></div><p> +If you get a <span class="errorname">INTERNAL ERROR</span> 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). +</p><p> +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. +</p><p> +You should also detail how to reproduce the problem, if +possible. Please make this reasonably detailed. +</p><a class="indexterm" name="id2960962"></a><p> +You may also find that a core file appeared in a <tt class="filename">corefiles</tt> +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: +</p><a class="indexterm" name="id2960984"></a><a class="indexterm" name="id2960993"></a><pre class="screen"> +<tt class="prompt">$ </tt><b class="userinput"><tt>gdb smbd core</tt></b> +</pre><p> +adding appropriate paths to smbd and core so gdb can find them. If you +don't have gdb then try <b class="userinput"><tt>dbx</tt></b>. Then within the debugger +use the command <b class="command">where</b> to give a stack trace of where the +problem occurred. Include this in your report. +</p><p> +If you know any assembly language then do a +<b class="command">disass</b> 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, including this info in the bug report can be +useful. +</p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2961060"></a>Attaching to a running process</h2></div></div><div></div></div><p> +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 +<b class="userinput"><tt>gdb smbd <i class="replaceable"><tt>PID</tt></i></tt></b> where you get +<i class="replaceable"><tt>PID</tt></i> from <span class="application">smbstatus</span>. +Then use <b class="command">c</b> to continue and try to cause the core dump +using the client. The debugger should catch the fault and tell you +where it occurred. +</p></div><div class="sect1" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="id2961107"></a>Patches</h2></div></div><div></div></div><a class="indexterm" name="id2961114"></a><a class="indexterm" name="id2961123"></a><p> +The best sort of bug report is one that includes a fix! If you send us +patches please use <b class="userinput"><tt>diff -u</tt></b> format if your version of +diff supports it, otherwise use <b class="userinput"><tt>diff -c4</tt></b>. Make sure +you do the diff against a clean version of the source and let me know +exactly what version you used. +</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="problems.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="troubleshooting.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="Appendixes.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 34. Analysing and solving samba problems </td><td width="20%" align="center"><a accesskey="h" href="samba-doc.html">Home</a></td><td width="40%" align="right" valign="top"> Part VI. Appendixes</td></tr></table></div></body></html> |