On Sat, Mar 10, 2012 at 5:20 AM, MOHD RAFIQ <[email protected]> wrote:
> Hi, > pls suggest fix for this, i have attached my cat /proc/cpuinfo . > Thanks > I already did. To quote: "Ok, I have a branch 'volk_32bit_fixes' published at: git://github.com/trondeau/gnuradio.git This should fix the fft_filter issue and another issue in one of the volk convert functions (that is not used in GNU Radio but was failing anyway). I'm still seeing the 32fc_x2_dot_product_32fc failure. It looks like this is in the SSE_32 proto-kernel. I'm seeing if we can get a quick fix for it. This is the same problem Martin was seeing. If we can't get a fix for it, I'm going to temporarily disable it until we get it fixed. Tom" I have been waiting for people with 32-bit machines to try it out and report back before merging it. Tom > ------------------------------ > *From:* MOHD RAFIQ <[email protected]> > *To:* "[email protected]" <[email protected]> > *Sent:* Thursday, 8 March 2012 9:45 PM > *Subject:* Re: [Discuss-gnuradio] Unhandled exception after upgrading > gnuradio- backtrace included > > > I apologise for not being clear, here is the backtrace > > [New Thread 0xb21feb70 (LWP 16921)] > [Thread 0xb19fdb70 (LWP 16920) exited] > [New Thread 0xb19fdb70 (LWP 16922)] > [New Thread 0xb29ffb70 (LWP 16923)] > [New Thread 0xb33ffb70 (LWP 16924)] > [New Thread 0xb3dffb70 (LWP 16925)] > [New Thread 0xb51ffb70 (LWP 16926)] > [New Thread 0xb47ffb70 (LWP 16927)] > [New Thread 0xb11fcb70 (LWP 16928)] > [New Thread 0xb09fbb70 (LWP 16929)] > [New Thread 0xb01fab70 (LWP 16930)] > > Program received signal SIGSEGV, Segmentation fault. > [Switching to Thread 0xb29ffb70 (LWP 16923)] > 0x002fc4a0 in volk_32fc_x2_multiply_32fc_a_sse3 () > from /usr/local/lib/libvolk.so.0.0.0 > (gdb) bt > #0 0x002fc4a0 in volk_32fc_x2_multiply_32fc_a_sse3 () > from /usr/local/lib/libvolk.so.0.0.0 > #1 0x002c25d2 in get_volk_32fc_x2_multiply_32fc_a () > from /usr/local/lib/libvolk.so.0.0.0 > #2 0x005125bf in gri_fft_filter_ccc_generic::filter(int, > std::complex<float> const*, std::complex<float>*) () > from /usr/local/lib/libgnuradio-core-3.5.3git.so.0.0.0 > #3 0x005196ff in gr_fft_filter_ccc::work(int, std::vector<void const*, > std::allocator<void const*> >&, std::vector<void*, std::allocator<void*> > >&) () > from /usr/local/lib/libgnuradio-core-3.5.3git.so.0.0.0 > #4 0x004e537a in gr_sync_decimator::general_work(int, std::vector<int, > std::allocator<int> >&, std::vector<void const*, std::allocator<void > const*> >&, std::vector<void*, std::allocator<void*> >&) () > from /usr/local/lib/libgnuradio-core-3.5.3git.so.0.0.0 > #5 0x004c983c in gr_block_executor::run_one_iteration() () > from /usr/local/lib/libgnuradio-core-3.5.3git.so.0.0.0 > #6 0x004e7a7f in > gr_tpb_thread_body::gr_tpb_thread_body(boost::shared_ptr<gr_block>, int) () > from /usr/local/lib/libgnuradio-core-3.5.3git.so.0.0.0 > #7 0x004e2374 in > boost::detail::function::void_function_obj_invoker0<gruel::thread_body_wrapper<tpb_container>, > void>::invoke(boost::detail::function::function_buffer&) () from > /usr/local/lib/libgnuradio-core-3.5.3git.so.0.0.0 > #8 0x006c8156 in boost::detail::thread_data<boost::function0<void> > >::run() () > from /usr/local/lib/libgruel-3.5.3git.so.0.0.0 > #9 0x0017444d in thread_proxy () from > /usr/lib/libboost_thread-mt.so.1.46.0 > #10 0x4f94ca2e in start_thread () from /lib/libpthread.so.0 > #11 0x4f86689e in clone () from /lib/libc.so.6 > > Thanks, > rafiq > > > ------------------------------ > *From:* Tom Rondeau <[email protected]> > *To:* MOHD RAFIQ <[email protected]> > *Cc:* "[email protected]" <[email protected]> > *Sent:* Thursday, 8 March 2012 8:51 PM > *Subject:* Re: [Discuss-gnuradio] Unhandled exception after upgrading > gnuradio > > On Thu, Mar 8, 2012 at 5:40 AM, MOHD RAFIQ <[email protected]>wrote: > > Hi, > I am using benchmark_tx.py and benchmark_rx.py in code to make WBX > usrp2 as transceiver, this was running without error until I upgraded my > gnuradio from 3.5.1 to current version > v3.5.2-1-g57ad294b, when I run the same code now it gives a segmenatation > fault(core dump), below are the /var/log/messages when seg. fault occurs > > Mar 8 15:29:10 MRAFIQ-NGN kernel: [75426.998302] python[12650] general > protection ip:b2d4a0 sp:b51fee80 error:0 in libvolk.so.0.0.0[ae2000+be000] > Mar 8 15:29:11 MRAFIQ-NGN abrt[12658]: saved core dump of pid 12635 > (/usr/bin/python) to > /var/spool/abrt/ccpp-2012-03-08-15:29:10-12635.new/coredump > (127561728 bytes) > Mar 8 15:29:11 MRAFIQ-NGN abrtd: Directory 'ccpp-2012-03-08-15:29:10-12635' > creation detected > Mar 8 15:29:11 MRAFIQ-NGN abrtd: Interpreter crashed, but no packaged > script detected: 'python algo-sink.py' > Mar 8 15:29:11 MRAFIQ-NGN abrtd: Corrupted or bad dump > /var/spool/abrt/ccpp-2012-03-08-15:29:10-12635 (res:2), deleting > > In the code this occurs at tb.start() inside benchmark_rx.py > > and it works without an error after a 6-8 trials in a row , > I am not able to figure out where there is exception that is not handled > properly, I appreciate your comments. > > fedora 15, gnuradio v3.5.2-1-g57ad294b, > usrp2, WBX daughter board > > > > Can you follow the instructions here: > > http://gnuradio.org/redmine/projects/gnuradio/wiki/FAQ#How-do-I-debug-GNU-Radio-in-Python > > And get us a backtrace (bt in gdb) when the seg fault happens? It'll help > us to debug it. > > Thanks, > Tom > > > > > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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