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<h5 class="subsubsection">15.4.7.6 Tasking Support when Debugging Core Files</h5>

<p><a name="index-Ada-tasking-and-core-file-debugging-877"></a>
When inspecting a core file, as opposed to debugging a live program,
tasking support may be limited or even unavailable, depending on
the platform being used. 
For instance, on x86-linux, the list of tasks is available, but task
switching is not supported.  On Tru64, however, task switching will work
as usual.

   <p>On certain platforms, including Tru64, the debugger needs to perform some
memory writes in order to provide Ada tasking support.  When inspecting
a core file, this means that the core file must be opened with read-write
privileges, using the command &lsquo;<samp><span class="samp">"set write on"</span></samp>&rsquo; (see <a href="Patching.html#Patching">Patching</a>). 
Under these circumstances, you should make a backup copy of the core
file before inspecting it with <span class="sc">gdb</span>.

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