Re: [Discuss-gnuradio] Lock/Unlock segfaulting

[Marcus Müller]

Hi Achilleas,

after skimming through your code, I found no obvious mistakes so far.
My guess was that under some circumstances, you connect or disconnect a
connection twice or something similarly wicked happens, but I can't see
why that should happen.
Can you supply us with a backtrace, generated by GDB?
(gdb --args python onoff_flat_test.py; then type "run<return>" as soon
as gdb is ready, then type "backtrace<return>" after the program
segfaulted)

Greetings
Marcus
On Fri, 2013-10-04 at 17:46 -0400, Achilleas Anastasopoulos wrote:
> 
> 
> I have a pyhton program (see
> http://web.eecs.umich.edu/~anastas/docs/onoff_flat_test.py) 
> that based on a button chooser (on/off) rearranges itself.
> I use lock/unlock to do the disconnection/reconnection.
> However, I always get segfaults after a couple of changes.
> 
> 
> The graph is pretty simple:
> 
> 
> A complex sinusodial source + noise (throttled) goes to either:
> 
> 
> ON) multiplication by 2 and complex to mag squared
> 
> or
> 
> OFF) multiplication by 0 and complex to mag squared 
> 
> 
> and then to a null sink.
> 
> 
> 
> I would really appreciate some input because I am kind of lost as to
> what 
> 
> is going wrong.
> 
> thanks in advance,
> Achilleas
> 
> 
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