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Updated README.

Browse source 
It now includes bug reporting instructions/tips.
This commit is contained in:
Lasse Collin 2009-08-27 10:40:25 +03:00
parent 92e536d8b8
commit d88c4072b3
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README
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@ -8,8 +8,9 @@ XZ Utils
1.2. Documentation for command line tools
1.3. Documentation for liblzma
2. Version numbering
3. Other implementations of the .xz format
4. Contact information
3. Reporting bugs
4. Other implementations of the .xz format
5. Contact information
0. Overview
@ -141,7 +142,51 @@ XZ Utils
the next version can be X.Y.(Z+1)beta but not X.Y.Zbeta.
3. Other implementations of the .xz format
3. Reporting bugs
-----------------
Naturally it is easiest for me if you already know what causes the
unexpected behavior. Even better if you have a patch to propose.
However, quite often the reason for unexpected behavior is unknown,
so here are a few things to do before sending a bug report:
1. Try to create a small example how to reprocude the issue.
2. Compile XZ Utils with debugging code using configure switches
--enable-debug and, if possible, --disable-shared. If you are
using GCC, use CFLAGS='-O0 -ggdb3'. Don't strip the resulting
binaries.
3. Turn on core dumps. The exact command depends on your shell;
for example in GNU bash it is done with "ulimit -c unlimited",
and in tcsh with "limit coredumpsize unlimited".
4. Try to reproduce the suspected bug. If you get "assertion failed"
message, be sure to include the complete message in your bug
report. If the application leaves a coredump, get a backtrace
using gdb:
$ gdb /path/to/app-binary # Load the app to the debugger.
(gdb) core core # Open the coredump.
(gdb) bt # Print the backtrace. Copy & paste to bug report.
(gdb) quit # Quit gdb.
Report your bug via email or IRC (see Contact information below).
Don't send core dump files or any executables. If you have a small
example file(s) (total size less than 256 KiB), please include
it/them as an attachment. If you have bigger test files, put them
online somewhere and include an URL to the file(s) in the bug report.
Always include the exact version number of XZ Utils in the bug report.
If you are using a snapshot from the git repository, use "git describe"
to get the exact snapshot version. If you are using XZ Utils shipped
in an operating system distribution, mention the distribution name,
distribution version, and exact xz package version; if you cannot
repeat the bug with the code compiled from unpatched source code,
you probably need to report a bug to your distribution's bug tracking
system.
4. Other implementations of the .xz format
------------------------------------------
7-Zip and the p7zip port of 7-Zip support the .xz format starting
@ -153,18 +198,18 @@ XZ Utils
XZ Embedded is a limited implementation written for use in the Linux
kernel, but it is also suitable for other embedded use.
http://tukaani.org/xz-embedded/
http://tukaani.org/xz/embedded.html
4. Contact information
5. Contact information
----------------------
If you have questions, bug reports, patches etc. related to XZ Utils,
contact Lasse Collin <lasse.collin@tukaani.org>. tukaani.org uses
greylisting to reduce spam, thus when you send your first email, it
may get delayed by a few hours. In addition to that, I'm sometimes
slow at replying. If you haven't got a reply within two weeks, assume
that your email has got lost and resend it or use IRC.
contact Lasse Collin <lasse.collin@tukaani.org> (in Finnish or English).
tukaani.org uses greylisting to reduce spam, thus when you send your
first email, it may get delayed by a few hours. In addition to that,
I'm sometimes slow at replying. If you haven't got a reply within two
weeks, assume that your email has got lost and resend it or use IRC.
You can find me also from #tukaani on Freenode; my nick is Larhzu.
The channel tends to be pretty quiet, so just ask your question and