If this is the problem, the attached patch may help -- it turns the reinterpret_casts in the serialization of primitives into memcpys, which shouldn't require alignment.
On Thu, 2010-07-08 at 19:43 +0900, Daniel Stonier wrote:Depending on how the serializer is used, this may result in an
> Got into it with a debugger, and found it hanging at
> roslib/include/ros/serialization.h at
>
>
> ROS_CREATE_SIMPLE_SERIALIZER(double);
unaligned write. You can check whether an alignment error is involved
as follows:
echo 5 > /proc/cpu/alignment
and re-run the executable that's causing trouble. The program should
receive a signal (so you can see where exactly things go wrong in gdb)
and the kernel should report an "Alignment trap: ..." on the console or
in dmesg/syslog.
Cheers,
Rene
--
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Dipl.-Inf. René Wagner Junior Researcher
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Safe and Secure Cognitive Systems D-28359 Bremen
Phone: (+49) 421-218-64224 Fax: (+49) 421-218-98-64224
Web: http://www.informatik.uni-bremen.de/agebv/en/ReneWagner
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