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47 lines
2.1 KiB
Text
47 lines
2.1 KiB
Text
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Reporting bugs
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--------------
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Naturally it is easiest for me if you already know what causes the
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unexpected behavior. Even better if you have a patch to propose.
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However, quite often the reason for unexpected behavior is unknown,
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so below are a few things what to do before sending a bug report.
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In case of a crash (usually segmentation violation):
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1. Try to create a small example how to reprocude the issue.
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2. If you are writing an application using liblzma or libzfile,
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double check that you are using the libraries correctly (for
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example, that you didn't forget to call lzma_init()). If it is
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the command line tool included in LZMA Utils that is crashing,
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ignore this step.
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3. Compile LZMA Utils with debugging code using configure switch
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`--enable-debug'. If you are using GCC as the compiler, use
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CFLAGS='-O0 -ggdb'. Don't strip the resulting binaries.
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4. Turn on core dumps. The exact command depends on your shell;
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for example in GNU bash it is done with `ulimit -c unlimited',
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and in tcsh with `limit coredumpsize unlimited'.
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5. Try to reproduce the suspected bug. If you get `assertion failed'
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message, be sure to include the complete message in your bug
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report. If the application leaves a coredump, get a backtrace
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using gdb:
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$ gdb /path/to/app-binary # Loads the app to the debugger.
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(gdb) core core # Opens the coredump.
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(gdb) bt # Prints the backtrace. Copy & paste to bug report.
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(gdb) quit # Quits gdb.
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Send your bug report to Lasse Collin <lasse.collin@tukaani.org>. Don't
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send the core dump file or the actual executables. If you have a small
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example file(s) (total size less than 100 KiB), please include it/them
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as an attachment.
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Do NOT complain about problems with LZMA Utils to Igor Pavlov.
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Although the code of LZMA Utils is derived from his code, there are
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a lot of changes, which may have introduced bugs not present in
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the original version.
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