Re: [Discuss-gnuradio] Error while receiving

2008-10-17 Thread kaleem ahmad
The last problem which I posted is solved and now finally I got the backtrace of error, which is the following: -- #0 0xb710c289 in std::_List_node_base::hook () from /usr/lib/libstdc++.so.6 #1 0

Re: [Discuss-gnuradio] Error while receiving

2008-10-15 Thread kaleem ahmad
Hi Eric, I am trying to use gdb and I found some other posts by you in which you recomended that the pid should be printed in the begining and then wait for an Enter to be pressed and before pressing Enter open a new terminal and attach the pid of program_to_be_backtraced with gdb, I did it in th

Re: [Discuss-gnuradio] Error while receiving

2008-10-11 Thread Eric Blossom
On Sat, Oct 11, 2008 at 09:33:15AM -0700, kaleem ahmad wrote: > > Thanks Johnathan, > > I am tring following as you suggested: > > "The usrp.source_c block only has one output, so you just connect: > > fg.connect(src, fg1) > fg.connect(src, fg2)" > But by doing this my fg2 is working but fg1

Re: [Discuss-gnuradio] Error while receiving

2008-10-11 Thread kaleem ahmad
Thanks Johnathan and Eric, Please dont consider my last mail, because the way Johnathan suggested is working but I have some other problems. Best Regards Kaleem Ahmad kaleem ahmad wrote: > > Thanks Johnathan, > > I am tring following as you suggested: > > "The usrp.source_c block only has on

Re: [Discuss-gnuradio] Error while receiving

2008-10-11 Thread kaleem ahmad
Thanks Johnathan, I am tring following as you suggested: "The usrp.source_c block only has one output, so you just connect: fg.connect(src, fg1) fg.connect(src, fg2)" But by doing this my fg2 is working but fg1 is not...It seems as the connection of fg1 is overwritten by fg2??? By the way I am

Re: [Discuss-gnuradio] Error while receiving

2008-10-11 Thread Eric Blossom
On Fri, Oct 10, 2008 at 01:15:42AM -0700, kaleem ahmad wrote: > > Thanks Eric, > > Can you give me a bit more explanation about why it is 'doomed to fail and > will sooner or later exhaust all memory'. Actually my plan is to run this > graph for ever and I dont have any idea why a graph(especiall

Re: [Discuss-gnuradio] Error while receiving

2008-10-10 Thread Johnathan Corgan
On Fri, Oct 10, 2008 at 9:02 AM, kaleem ahmad <[EMAIL PROTECTED]> wrote: > Addition to my above question I also want to know how can I connect two > different flowgraphs with 'usrp.source_c', > > I was trying following > > src = usrp.source_c(...) > fg.connect((src, 0),...blocks of fg1) > fg.c

Re: [Discuss-gnuradio] Error while receiving

2008-10-10 Thread kaleem ahmad
Addition to my above question I also want to know how can I connect two different flowgraphs with 'usrp.source_c', I was trying following src = usrp.source_c(...) fg.connect((src, 0),...blocks of fg1) fg.connect((src, 1),...blocks of fg2) But it is not working I got following error "T

Re: [Discuss-gnuradio] Error while receiving

2008-10-10 Thread kaleem ahmad
Thanks Eric, Can you give me a bit more explanation about why it is 'doomed to fail and will sooner or later exhaust all memory'. Actually my plan is to run this graph for ever and I dont have any idea why a graph(especially this one) will exhibit such behavior and what measure can be taken to a

Re: [Discuss-gnuradio] Error while receiving

2008-10-09 Thread Eric Blossom
On Thu, Oct 09, 2008 at 07:29:51AM -0700, kaleem ahmad wrote: > > Hi, > > I am using USRP+RFX1400+SUSI > > I am using following flow graph to receive data> > > usrp_source_c -> gr.fir_filter_ccf -> gr.quadrature_demod_cf -> > gr.simple_correlator -> gr.vector_sink_b > > Some time I receive fol

[Discuss-gnuradio] Error while receiving

2008-10-09 Thread kaleem ahmad
Hi, I am using USRP+RFX1400+SUSI I am using following flow graph to receive data> usrp_source_c -> gr.fir_filter_ccf -> gr.quadrature_demod_cf -> gr.simple_correlator -> gr.vector_sink_b Some time I receive following error: *** glibc detected *** python: free(): invalid next size (fast): 0x08