[ros-users] Ros on Arm Hanging

[René Wagner]

On Fri, 2010-07-09 at 10:45 +0900, Daniel Stonier wrote:
> - Patched (using the memcpy's rather than the reinterprets in the
> SERIALIZER macro).
> - In signal+warn mode (echo 5 > /proc/cpu/alignment)
>   - (float64&int32) client gives a bus error and kernel outputs an
> alignment trap message, but servers are fine
> - In default mode (echo 0 > /proc/cpu/alignment)
>   - (float64&int32) client and server function without hanging like before
> 
> So...its working, but is this the right fix?

You probably want to check where the unaligned memory access is
happening. Can you run your float_client from within gdb? This should
allow you to get a backtrace once the kernel has sent the signal (bus
error) from the alignment trap.

Cheers,

Rene

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