On Tue, 2010-09-14 at 11:29 -0700, Josh Faust wrote:
> Hi Tonu,
> 
> 
> This is a known issue when running on ARM that is scheduled to be
> fixed for 1.3: https://code.ros.org/trac/ros/ticket/2883.  There's a
> patch for at least part of the problem attached to that ticket, and
> the original thread regarding it is archived on
> gmane: http://comments.gmane.org/gmane.science.robotics.ros.user/6294

For purpose of documenting my progress, this is what I did:


ros@arm7:~/ros$ svn diff ./ros/core/roslib/include/ros/serialization.h
Index: ros/core/roslib/include/ros/serialization.h
===================================================================
--- ros/core/roslib/include/ros/serialization.h	(revision 11023)
+++ ros/core/roslib/include/ros/serialization.h	(working copy)
@@ -172,12 +172,12 @@
   { \
     template<typename Stream> inline static void write(Stream& stream,
const Type v) \
     { \
-      *reinterpret_cast<Type*>(stream.advance(sizeof(v))) = v; \
+      memcpy(stream.advance(sizeof(v)), &v, sizeof(v)); \
     } \
     \
     template<typename Stream> inline static void read(Stream& stream,
Type& v) \
     { \
-      v = *reinterpret_cast<Type*>(stream.advance(sizeof(v))); \
+      memcpy(&v, stream.advance(sizeof(v)), sizeof(v)); \
     } \
     \
     inline static uint32_t serializedLength(const Type t) \
ros@arm7:~/ros$ 

Recompiled (which took about hour :D) and it does not crash anymore.

Thanks for help!

  Tõnu