Gnuradio debug with gnuradio ofdm

GNU Radio
1

Hello,
I was trying to use gdb with ofdm example. I called
gri_debugger_hook
in gr_ofdm_frame_sin.cc :work. However, it gives following output which
is
not what I expected. Can any one give me a help or explanation?

Thanks,
Bin

#########################################
/root/gnuradio-3.2.2/gnuradio-examples/python/ofdm/benchmark_ofdm_rx.py(211)main()
-> tb.start() # start flow graph
(Pdb) c
fusb::_reap: Interrupted system call

#########################################
Breakpoint 1 at 0xb7b93703: file gri_debugger_hook.cc, line 29.
(gdb) c
Continuing.
[New Thread 0xb5f1db90 (LWP 7839)]
[New Thread 0xb52fab90 (LWP 7840)]
[New Thread 0xb4af9b90 (LWP 7841)]
[New Thread 0xb42f8b90 (LWP 7842)]
[New Thread 0xb3af7b90 (LWP 7843)]
[New Thread 0xb32f6b90 (LWP 7844)]
[Thread 0xb4af9b90 (LWP 7841) exited]
[New Thread 0xb2af5b90 (LWP 7845)]
[Thread 0xb42f8b90 (LWP 7842) exited]
[New Thread 0xb22f4b90 (LWP 7846)]
[Thread 0xb3af7b90 (LWP 7843) exited]
[New Thread 0xb1af3b90 (LWP 7847)]
[Thread 0xb2af5b90 (LWP 7845) exited]
[New Thread 0xb12f2b90 (LWP 7848)]
[Thread 0xb32f6b90 (LWP 7844) exited]
[New Thread 0xb0af1b90 (LWP 7849)]
[Thread 0xb22f4b90 (LWP 7846) exited]
[New Thread 0xb02f0b90 (LWP 7850)]
[Thread 0xb1af3b90 (LWP 7847) exited]
[New Thread 0xafaefb90 (LWP 7851)]
[Thread 0xb0af1b90 (LWP 7849) exited]
[New Thread 0xaf2eeb90 (LWP 7852)]
[Thread 0xafaefb90 (LWP 7851) exited]
[New Thread 0xaeaedb90 (LWP 7853)]
[Thread 0xb12f2b90 (LWP 7848) exited]
[New Thread 0xae2ecb90 (LWP 7854)]
[Thread 0xaeaedb90 (LWP 7853) exited]
[New Thread 0xadaebb90 (LWP 7855)]
[Thread 0xb02f0b90 (LWP 7850) exited]
[New Thread 0xad2eab90 (LWP 7856)]
[Thread 0xaf2eeb90 (LWP 7852) exited]
[New Thread 0xacae9b90 (LWP 7857)]
[Thread 0xadaebb90 (LWP 7855) exited]
[New Thread 0xac2e8b90 (LWP 7858)]
[Thread 0xae2ecb90 (LWP 7854) exited]
[New Thread 0xabae7b90 (LWP 7859)]
[Thread 0xad2eab90 (LWP 7856) exited]
[New Thread 0xab2e6b90 (LWP 7860)]
[Thread 0xacae9b90 (LWP 7857) exited]
[New Thread 0xaaae5b90 (LWP 7861)]
[Thread 0xac2e8b90 (LWP 7858) exited]
[New Thread 0xaa2e4b90 (LWP 7862)]
[Thread 0xaaae5b90 (LWP 7861) exited]
[New Thread 0xa9ae3b90 (LWP 7863)]
[Thread 0xabae7b90 (LWP 7859) exited]
[New Thread 0xa92e2b90 (LWP 7864)]
[Thread 0xab2e6b90 (LWP 7860) exited]
[New Thread 0xa8ae1b90 (LWP 7865)]
[Thread 0xa9ae3b90 (LWP 7863) exited]
[Thread 0xa92e2b90 (LWP 7864) exited]
[Thread 0xaa2e4b90 (LWP 7862) exited]
[Thread 0xb52fab90 (LWP 7840) exited]
[Thread 0xa8ae1b90 (LWP 7865) exited]
[Thread 0xb5f1db90 (LWP 7839) exited]

Program exited normally.

2

Thanks, Eric. However, there must something wrong. Because it says
fusb::_reap: Interrupted system call. Without gdb, it will go through
more
stuff. Any idea?

Thanks,
Bin

3

On Thu, Aug 13, 2009 at 01:52:12PM -0400, bin zan wrote:

/root/gnuradio-3.2.2/gnuradio-examples/python/ofdm/benchmark_ofdm_rx.py(211)main()
-> tb.start() # start flow graph
(Pdb) c
fusb::_reap: Interrupted system call

#########################################
Breakpoint 1 at 0xb7b93703: file gri_debugger_hook.cc, line 29.
(gdb) c
Continuing.

Looks good to me.

You hit the break point, and then you told it to continue.
It did :wink:

Eric

[Thread 0xb3af7b90 (LWP 7843) exited]
[New Thread 0xaf2eeb90 (LWP 7852)]
[Thread 0xadaebb90 (LWP 7855) exited]
[New Thread 0xa9ae3b90 (LWP 7863)]

Program exited normally.