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[Discuss-gnuradio] std::bad_alloc in Reed-Solomon decoder

From: Daniel Estévez
Subject: [Discuss-gnuradio] std::bad_alloc in Reed-Solomon decoder
Date: Sun, 6 Jan 2019 10:39:13 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1


I am trying to debug a problem that some users have found in the ESEO
decoder in gr-satellites (https://github.com/daniestevez/gr-satellites).

The problem is that after running for a lot of time, the Reed-Solomon
decoder block throws a std::bad_alloc exception, which gets printed out as

thread[thread-per-block[13]: <block decode_rs_general (10)>]: std::bad_alloc

It seems I am able to replicate this on my system.

My question is how to start debugging this. Is there any way in which I
can try to find what in the decode_rs_general block is throwing the
std::bad_alloc exception?

This decode_rs_general block uses Phil Karn's libfec and it doesn't do
any memory allocation, except on initialization, so I find it weird that
it's giving a std::bad_alloc. See the source of the block here:


Best regards,


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