Also hoping that it would solve the issue, I rebuilt GNU Radio from todays pull. But that didn't help.
manu@radio1:narrowband$ gnuradio-config-info -v v3.7.2.1-251-g67882eec On Thu, Feb 27, 2014 at 12:26 AM, Manu T S <manu.t.s...@gmail.com> wrote: > > Thanks for the help. Here is the output. > > ============================================ > manu@radio1:narrowband$ gdb python > GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2.1) 7.4-2012.04 > Copyright (C) 2012 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later < > http://gnu.org/licenses/gpl.html> > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. Type "show copying" > and "show warranty" for details. > This GDB was configured as "x86_64-linux-gnu". > For bug reporting instructions, please see: > <http://bugs.launchpad.net/gdb-linaro/>... > Reading symbols from /usr/bin/python...(no debugging symbols found)...done. > > (gdb) run benchmark_rx.py -f 900M -m bpsk --rx-gain=25 -r 1M > Starting program: /usr/bin/python benchmark_rx.py -f 900M -m bpsk > --rx-gain=25 -r 1M > warning: no loadable sections found in added symbol-file system-supplied > DSO at 0x7ffff7ffa000 > [Thread debugging using libthread_db enabled] > Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". > > linux; GNU C++ version 4.6.3; Boost_104800; UHD_003.006.002-1-g9fd308b3 > > Using Volk machine: avx_64_mmx_orc > [New Thread 0x7fffe979f700 (LWP 31208)] > [Thread 0x7fffe979f700 (LWP 31208) exited] > [New Thread 0x7fffe979f700 (LWP 31209)] > [Thread 0x7fffe979f700 (LWP 31209) exited] > [New Thread 0x7fffe979f700 (LWP 31210)] > [Thread 0x7fffe979f700 (LWP 31210) exited] > > -- Opening a USRP2/N-Series device... > -- Current recv frame size: 1472 bytes > -- Current send frame size: 1472 bytes > [New Thread 0x7fffe979f700 (LWP 31211)] > > > UHD Warning: > The recv buffer could not be resized sufficiently. > Target sock buff size: 50000000 bytes. > Actual sock buff size: 1000000 bytes. > See the transport application notes on buffer resizing. > Please run: sudo sysctl -w net.core.rmem_max=50000000 > > UHD Warning: > The recv buffer could not be resized sufficiently. > Target sock buff size: 50000000 bytes. > Actual sock buff size: 1000000 bytes. > See the transport application notes on buffer resizing. > Please run: sudo sysctl -w net.core.rmem_max=50000000 > > UHD Warning: > The send buffer could not be resized sufficiently. > Target sock buff size: 1048576 bytes. > Actual sock buff size: 1000000 bytes. > See the transport application notes on buffer resizing. > Please run: sudo sysctl -w net.core.wmem_max=1048576 > [New Thread 0x7fffe8d91700 (LWP 31212)] > > > UHD Warning: > Unable to set the thread priority. Performance may be negatively > affected. > Please see the general application notes in the manual for > instructions. > EnvironmentError: OSError: error in pthread_setschedparam > [New Thread 0x7fffe3fff700 (LWP 31213)] > > Warning: Failed to enable realtime scheduling. > [New Thread 0x7fffe37fe700 (LWP 31214)] > [New Thread 0x7fffe2ffd700 (LWP 31215)] > [New Thread 0x7fffe27fc700 (LWP 31216)] > [New Thread 0x7fffe1ffb700 (LWP 31217)] > [New Thread 0x7fffe17fa700 (LWP 31218)] > [New Thread 0x7fffe0ff9700 (LWP 31219)] > [New Thread 0x7fffc7fff700 (LWP 31220)] > [New Thread 0x7fffc77fe700 (LWP 31221)] > [New Thread 0x7fffc6ffd700 (LWP 31222)] > [New Thread 0x7fffc67fc700 (LWP 31223)] > [New Thread 0x7fffc5ffb700 (LWP 31224)] > [New Thread 0x7fffc57fa700 (LWP 31225)] > > Program received signal SIGSEGV, Segmentation fault. > [Switching to Thread 0x7fffe0ff9700 (LWP 31219)] > 0x00007ffff46534b7 in volk_32fc_32f_dot_prod_32fc_a_sse () > from /usr/local/lib/libvolk.so.0.0.0 > (gdb) > ============================================ > > > On Thu, Feb 27, 2014 at 12:13 AM, West, Nathan < > n...@ostatemail.okstate.edu> wrote: > >> > On Wed, Feb 26, 2014 at 11:26 PM, West, Nathan < >> n...@ostatemail.okstate.edu> >> > wrote: >> >> >> >> On Wednesday, February 26, 2014, Tom Rondeau <t...@trondeau.com> wrote: >> >>> >> >>> On Wed, Feb 26, 2014 at 12:01 PM, Manu T S <manu.t.s...@gmail.com> >> wrote: >> >>> > Hello Everyone, >> >>> > >> >>> > Not sure if this is already discussed here. >> >>> > >> >>> > I am facing segmentation fault when running benchmark_rx in >> narrowband >> >>> > examples. It seems like those example used to work fine before, but >> now >> >>> > they >> >>> > are having these issues. >> >>> >> >>> >> >>> > Manu T S >> >>> >> >>> >> >>> This could be an issue related to the constellation_receiver QA issue >> >>> a few people have seen lately. I can't replicate it on my end, but >> >>> Nathan can and is helping to track it down. >> >>> >> >>> Tom >> >>> >> >>> >> >> >> >> That was my first thought as well. At this point we should probably >> file >> >> this in the bug tracker. >> >> >> >> Manu, >> >> >> >> Can you send me a backtrace, your processor type, and compiler >> >> information? >> >> >> >> Nathan >> > >> On Wed, Feb 26, 2014 at 12:33 PM, Manu T S <manu.t.s...@gmail.com> wrote: >> > Hi, >> > >> > Thanks for the responses. >> > >> > Output to "lscpu", "cat /proc/cpuinfor", "gcc -v", "python" can be >> found in >> > the link below: >> > >> > http://home.iitb.ac.in/~manu.ts/cpu-info >> > >> > I am still figuring out how to get the backtrace. >> > >> > -- >> > Manu T S >> >> $ gdb python # this brings up gdb prompt: >> (gdb) run benchmark_rx.py -f 900M -m bpsk --rx-gain=25 -r 1M >> >> then it will run, probably crash. then enter >> (gdb) bt >> >> Nathan >> > > > > -- > Manu T S > -- Manu T S
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