[Discuss-gnuradio] Core Dump with Simple_ra and an upgraded Ubuntu system from 14.04 to 16.04 LTS today.

[John Shields]

Hi,

   While I usually regret it, I decided to update my Ubuntu system from 
14.04 LTS to 16.04 LTS and it seemed to go fine. I rebuilt GNURadio and 
UHD and that seemed to go fine but when I run Simple_ra with:

simple_ra --aperture 2.4 --ant RX2 --srate 10.0e6 --dbw 8.0e6 --freq 
1420.4057e6 --gain 37.5 --dcg 1000 --lrate 30 --integ 30 --devid 
uhd='a',type=usrp2,addr=192.168.10.2,lo_offset=7.34e6,subdev=A:0 
--longitude 172.570925 --latitude -43.519023

linux; GNU C++ version 5.4.0 20160609; Boost_105800; 
UHD_003.010.001.001-79-g7ac01c7f

gr-osmosdr v0.1.4-98-gc653754d (0.1.5git) gnuradio 3.7.11.1
built-in source types: file fcd rtl rtl_tcp uhd hackrf bladerf rfspace 
airspy redpitaya
-- Opening a USRP2/N-Series device...
-- Current recv frame size: 1472 bytes
-- Current send frame size: 1472 bytes
-- Detecting internal GPSDO.... Found an internal GPSDO: Jackson-Labs, 
FireFly , Firmware Rev 0.926
-- Setting references to the internal GPSDO
-- Using subdev spec 'A:0'.
-- Using LO offset of 7.34e+06 Hz.
python2: malloc.c:2394: sysmalloc: Assertion `(old_top == initial_top 
(av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && 
prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 
0)' failed.
Aborted (core dumped)


When I fed the failure message to professor GOOGLE, I got talk of snap 
and xevilteddy but the commands for 32-bit didn't seem to work for my 
64-bit i7 system.


Any idea(s) about how I can get rid of this message?


           kind Regards,


                          John