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Re: [Discuss-gnuradio] free(): invalid pointer for AM demod block at Gnu

From: Volker Schroer
Subject: Re: [Discuss-gnuradio] free(): invalid pointer for AM demod block at Gnuradio
Date: Tue, 14 May 2019 17:54:06 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1

You have set passband frequency to 0 ! So your passband reaches from 0
to 0. That make no sense. Probably a parameter check should be
introduced to the demod block Further  you should add a throttle block
after your source.

Same problem can be found in 3.8.

Am 14.05.19 um 15:02 schrieb Ignatius Rivaldi:
I'm running Arch Linux with Gnu Radio and
Python 2.7.16 (default, Mar 11 2019, 18:59:25)
[GCC 8.2.1 20181127] on linux2

and if I try to use AM demod block with anything the flowgraph crashes
with this:

Warning: This flow graph may not have flow control: no audio or RF hardware blocks 
found. Add a Misc->Throttle block to your flow graph to avoid CPU congestion.

Executing: /usr/bin/python2 -u /home/feanor/Development/SDR/top_block.py

free(): invalid pointer


This is just a AM demod block with null sink and null source attached
to it, reproduction flowgraph is attached to this email

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