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

[Paul Miller]

On Tue, Dec 06, 2011 at 09:54:43PM -0800, Josh Blum wrote:
> So it looks like everything else passed which included gr_feval (another
> thing in gnuradio-core that uses swig directors).

Yes, indeed sir, that happened.

    Start 22: qa_feval 22/92
    Test #22: qa_feval .........................   Passed 0.70 sec

> It looks like the last recognizable thing the thread calls (from your
> traceback) is the swig director used in gr_block_gateway:
> #7  0x00007ffff46ca774 in
> SwigDirector_gr_block_gw_handler_safe::call_handle (this=0x1b5ef90)

I don't understand swig, but that is how I read it too.  I went
source diving in there and decided it was too arcane for my tired
mind at that time.  Maybe now that I have more sleep, who
knows…

> So perhaps, if the problem is the director, and if we remove the things
> that are different from gr_feval, this might work for you? Can you try
> this patch: http://pastebin.com/nThT5RBj

Patched! Compiled!

That didn't seem to work either …

          Start 22: qa_feval
    22/92 Test #22: qa_feval .........................   Passed    0.69 sec

…

          Start 27: qa_block_gateway
    27/92 Test #27: qa_block_gateway .................***Failed    0.67 sec

…

    99% tests passed, 1 tests failed out of 92

Double checked to make sure I applied the patch:

    bash$ curl http://pastebin.com/raw.php?i=nThT5RBj | patch -p1 
      % Total    % Received % Xferd  Average Speed   Time    Time     Time  
Current
                                     Dload  Upload   Total   Spent    Left  
Speed
    100   968    0   968    0     0  10759      0 --:--:-- --:--:-- --:--:-- 
16406
    (Stripping trailing CRs from patch.)
    patching file gnuradio-core/src/lib/general/gr_block_gateway.i
    Reversed (or previously applied) patch detected!  Assume -R? [n] ^C


Definitely applied.

my gr_norm.aq result is familiar…

    #7  0x00007ffff4706d03 in 
SwigDirector_gr_block_gw_handler_safe::call_handle (this=0x1af5550)
        at 
/home/jettero/code/arch/gnuradio/src/build/gnuradio-core/src/lib/swig/gnuradio_core_generalPYTHON_wrap.cxx:6829

> I wonder if anyone else on arch has the same issue?

Hard to say since there's no official package for gnuradio.  The
community build (AUR) is (or was) a little out of date, so I
tweaked it to do things I wanted and to use the most recent git
(his did a clone too, but I wanted to control that process a
little, most recently to use your repo and branch).

However, I have a hunch that it would not be unique to me since
my build isn't so much different from the AUR build, just uses
newer gits and … ahh … builds completely on the current
repos.

I definitely wonder if it's my swig.  Can you try under Swig
2.0.4 on your end?

-Paul

-- 
If riding in an airplane is flying, then riding in a boat is swimming.
116 jumps, 48.6 minutes of freefall, 92.9 freefall miles.