This has nothing to do with ROS.  This is what the default signal handler for SIGILL does; print a message and abort.<br><br>-R<br><br><div class="gmail_quote">On Fri, Jun 18, 2010 at 9:07 AM, Bill Morris <span dir="ltr">&lt;<a href="mailto:morris@ee.ccny.cuny.edu">morris@ee.ccny.cuny.edu</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">std::string foo;<br>
<br>
...<br>
<br>
ROS_INFO(&quot;Foo: %s&quot;,foo);<br>
$ bin/my_node<br>
Illegal instruction<br>
<br>
This throws an illegal instruction during execution.<br>
<br>
ROS_INFO(&quot;Foo: %s&quot;,foo.c_str());<br>
Obviously works correctly.<br>
<br>
Is it possible to get this to produce a better error message?<br>
<br>
<br>
<br>
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</blockquote></div><br>