Re: [Discuss-gnuradio] problems with python blocks [attn: jblum]

[Paul Miller]

On Mon, Dec 05, 2011 at 08:30:17AM -0800, Josh Blum wrote:
> Looks like I had a typo in the forecast call, fix is pushed. I should
> have had unit testing for the general_work as well.
> http://gnuradio.org/cgit/jblum.git/log/?h=python_blocks

Compiled!

> I dont really know if thats the cause of the error...?

Me either.  The backtrace looks identical to me, so I might even
recompile just to make sure ... I mean, ... yeah, it's on
5cd66ee, so.

#0  0x00007ffff7af908c in PyEval_EvalFrameEx () from 
/usr/lib/libpython2.7.so.1.0
#1  0x00007ffff7aff8ef in PyEval_EvalCodeEx () from /usr/lib/libpython2.7.so.1.0
#2  0x00007ffff7a8c15c in function_call () from /usr/lib/libpython2.7.so.1.0
#3  0x00007ffff7a67683 in PyObject_Call () from /usr/lib/libpython2.7.so.1.0
#4  0x00007ffff7a762bf in instancemethod_call () from 
/usr/lib/libpython2.7.so.1.0
#5  0x00007ffff7a67683 in PyObject_Call () from /usr/lib/libpython2.7.so.1.0
#6  0x00007ffff7a67d5d in PyObject_CallMethodObjArgs () from 
/usr/lib/libpython2.7.so.1.0
#7  0x00007ffff4706d84 in SwigDirector_gr_block_gw_handler_safe::call_handle 
(this=0x1b1efe0)
    at 
/home/jettero/code/arch/gnuradio/src/build/gnuradio-core/src/lib/swig/gnuradio_core_generalPYTHON_wrap.cxx:6851
#8  0x00007ffff669dea5 in gr_block_gateway_impl::start (this=0x1b226e0)
    at 
/home/jettero/code/arch/gnuradio/src/gnuradio-core/src/lib/general/gr_block_gateway.cc:171
#9  0x00007ffff6634d97 in gr_block_executor::gr_block_executor 
(this=0x7fffedb05d70, block=<optimized out>)
    at 
/home/jettero/code/arch/gnuradio/src/gnuradio-core/src/lib/runtime/gr_block_executor.cc:169
#10 0x00007ffff6653c14 in gr_tpb_thread_body::gr_tpb_thread_body 
(this=0x7fffedb05d70, block=...)
    at 
/home/jettero/code/arch/gnuradio/src/gnuradio-core/src/lib/runtime/gr_tpb_thread_body.cc:32
#11 0x00007ffff664e9c4 in operator() (this=0x1b03430) at 
/home/jettero/code/arch/gnuradio/src/gnuradio-core/src/lib/runtime/gr_scheduler_tpb.cc:42
#12 operator() (this=0x1b03430) at 
/home/jettero/code/arch/gnuradio/src/gruel/src/include/gruel/thread_body_wrapper.h:50
#13 
boost::detail::function::void_function_obj_invoker0<gruel::thread_body_wrapper<tpb_container>,
 void>::invoke (function_obj_ptr=...)
    at /usr/include/boost/function/function_template.hpp:153
#14 0x00007ffff5e5b2fe in operator() (this=<optimized out>) at 
/usr/include/boost/function/function_template.hpp:760
#15 boost::detail::thread_data<boost::function0<void> >::run (this=<optimized 
out>) at /usr/include/boost/thread/detail/thread.hpp:61
#16 0x00007ffff57f8699 in ?? () from /usr/lib/libboost_thread.so.1.48.0
#17 0x00007ffff7808df0 in start_thread () from /lib/libpthread.so.0
#18 0x00007ffff754e39d in clone () from /lib/libc.so.6

> I attached a copy of your code that worked for me (minus that the unit
> test fails since its not really normalizing)

Yeah, I had a normalizer there, but when it started sagfaulting, I just
simplified down ...  I'm surprised my code worked for you, but not for me.  I
wonder if it's my swig or my boost or something.

-Paul

-- 
If riding in an airplane is flying, then riding in a boat is swimming.
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