Re: [Discuss-gnuradio] trellis_encoder_bb segfaults when inside hier_block

[Martin Braun]

Sorry for the double-post, we were having problems with our SMTP today.

On Mon, Aug 02, 2010 at 02:54:48PM +0200, Martin Braun wrote:
> chancoding_industrystd_encoder_bb::chancoding_industrystd_encoder_bb ()
>   : gr_hier_block2 ("industrystd_encoder_bb",
>     gr_make_io_signature (1, 1, sizeof(char)),
>     gr_make_io_signature (1, 1, sizeof(char)))
> {
>   trellis_encoder_bb_sptr encoder = 
> trellis_encoder_bb_sptrllis_make_encoder_bb(fsm(1, 2, make_G()), 0);

This was a typo due to pasting into the email window.
make_G() returns a generator matrix, just in case someone wonders.

Besides, I just figured out that the same happens when I use an FIR
filter instead.
Here's how I create segfaults every time:

- create a hier_block in C++
- internally connect an FIR filter (e.g. fir_filter_fff)
- do anything with that block.

Looks like this has nothing to do with gr-trellis. If this looks like a
bug to any of the devs and not like a mistake on my end, I'll rig up a
test case for downloading if necessary.

MB

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Karlsruhe Institute of Technology (KIT)
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