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How to make MPlayer work on Fedora core. 

Based on a patch sent by Alex Eskin <alexeskin@yahoo.com>


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12027 b3059339-0415-0410-9bf9-f77b7e298cf2
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diego 2004-03-15 02:47:28 +00:00
parent 05621a40dc
commit 8a72cec9e1
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DOCS/xml/en/faq.xml
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@ -624,6 +624,64 @@ problems. <application>MPlayer</application> will use its builtin one instead.
</para></answer>
</qandaentry>
<qandaentry>
<question><para>
Why doesn't <application>MPlayer</application> work on Fedora Core?
</para></question>
<answer><para>
There is a bad interaction on Fedora between exec-shield,
prelink, and any applications which use Windows DLLs
(such as <application>MPlayer</application>).
</para>
<para>
The problem is that exec-shield randomizes the load addresses of all the
system libraries. This randomization happens at prelink time (once every
two weeks).
</para>
<para>
When <application>MPlayer</application> tries to load a Windows DLL it
wants to put it at a specific address (0x400000). If an important system
library happens to be there already, MPlayer will crash.
(A typical symptom would be a segmentation fault when trying
to play Windows Media 9 files.)
</para>
<para>
If you run into this problem you have two options:
<itemizedlist>
<listitem><para>Wait two weeks. It might start working again.</para></listitem>
<listitem><para>Relink all the binaries on the system with different
prelink options. Here are step by step instructions:</para>
<para>
<orderedlist>
<listitem><para>Edit <filename>/etc/syconfig/prelink</filename> and change</para>
<para>
<programlisting>
PRELINK_OPTS=-mR
</programlisting>
</para>
<para>
to
<programlisting>
PRELINK_OPTS="-mR --no-exec-shield"
</programlisting>
</para>
</listitem>
<listitem><para><command>touch /var/lib/misc/prelink.force</command></para></listitem>
<listitem><para><command>/etc/cron.daily/prelink</command>
(This relinks all the applications, and it takes
quite a while.)</para></listitem>
<listitem>
<para><command>execstack -s <replaceable>/path/to/</replaceable>mplayer</command>
(This turns off execshield for the <application>MPlayer</application> binary.)
</para>
</listitem>
</orderedlist>
</para>
</listitem>
</itemizedlist>
</para></answer>
</qandaentry>
<qandaentry>
<question><para>
... works with <application>xine/avifile/...</application> but doesn't with