Fwd: problem with top_block.stop()

---------- Forwarded message ----------
From: Sumedha G. [email protected]
Date: Wed, Dec 18, 2013 at 12:04 PM
Subject: Re: [Discuss-gnuradio] problem with top_block.stop()
To: Tom R. [email protected]

Hi
Following is my gdb backtrace output. Could this be of any help?
What should I look for in this backtrace to locate the problem?
Also, how should I specify breakpoints? I tried to give " (gdb) break
tb.start() " but this says Function “tb.start()” not defined.

(gdb) thread apply all backtrace

Thread 10 (Thread 0x7f004e7fc700 (LWP 17803)):
#0 0x00007f00813ea763 in select () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f007301149d in ?? () from /usr/local/lib/libuhd.so.003
#2 0x00007f00731a1a01 in ?? () from /usr/local/lib/libuhd.so.003
#3 0x00007f00731ab0b1 in ?? () from /usr/local/lib/libuhd.so.003
#4 0x00007f007322fa93 in ?? () from /usr/local/lib/libuhd.so.003
#5 0x00007f007e9edda9 in ?? () from /usr/lib/libboost_thread.so.1.48.0
#6 0x00007f0082617e9a in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#7 0x00007f00813f13fd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#8 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7f004effd700 (LWP 17802)):
#0 0x00007f008261c0fe in pthread_cond_timedwait@@GLIBC_2.3.2 ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f007e9f0668 in
boost::this_thread::sleep(boost::posix_time::ptime const&) () from
/usr/lib/libboost_thread.so.1.48.0
#2 0x00007f00731b533e in ?? () from /usr/local/lib/libuhd.so.003
#3 0x00007f007322fa93 in ?? () from /usr/local/lib/libuhd.so.003
#4 0x00007f007e9edda9 in ?? () from /usr/lib/libboost_thread.so.1.48.0
#5 0x00007f0082617e9a in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#6 0x00007f00813f13fd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7f004f7fe700 (LWP 17801)):
#0 0x00007f008261bd84 in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f007fa54be7 in
Theron::Detail::ThreadPool<Theron::Detail::MailboxQueueTheron::Detail::BlockingMonitor,
Theron::Detail::WorkerContext,
Theron::Detail::MailboxProcessor>::ThreadEntryPoint(void*) ()
from /usr/local/lib/libgras.so.0.0.0
#2 0x00007f007e9edda9 in ?? () from /usr/lib/libboost_thread.so.1.48.0
#3 0x00007f0082617e9a in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#4 0x00007f00813f13fd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7f004ffff700 (LWP 17800)):
#0 0x00007f008261bd84 in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f007fa54be7 in
Theron::Detail::ThreadPool<Theron::Detail::MailboxQueueTheron::Detail::BlockingMonitor,
Theron::Detail::WorkerContext,
Theron::Detail::MailboxProcessor>::ThreadEntryPoint(void*) ()
from /usr/local/lib/libgras.so.0.0.0
#2 0x00007f007e9edda9 in ?? () from /usr/lib/libboost_thread.so.1.48.0
#3 0x00007f0082617e9a in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#4 0x00007f00813f13fd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7f0064b62700 (LWP 17799)):
#0 0x00007f00813ea763 in select () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x0000000000449ed3 in ?? ()
#2 0x0000000000486614 in PyEval_EvalFrameEx ()
#3 0x0000000000486e02 in PyEval_EvalFrameEx ()
#4 0x000000000048d930 in PyEval_EvalCodeEx ()
#5 0x00000000004243f0 in ?? ()
#6 0x00000000004f7496 in PyObject_Call ()
#7 0x000000000046762a in ?? ()
#8 0x00000000004f7496 in PyObject_Call ()
#9 0x00000000004f9032 in PyObject_CallMethodObjArgs ()
#10 0x00007f0075bb2664 in
SwigDirector_BlockPython::_Py_work(std::vector<void*,
std::allocator<void*>

const&, std::vector<unsigned long, std::allocator >
const&, std::vector<void*, std::allocator<void*> > const&,
std::vector<unsigned long, std::allocator > const&) ()
from /usr/local/lib/python2.7/dist-packages/gras/_GRAS_PyBlock.so
#11 0x00007f0075bb5458 in
gras::BlockPython::work(gras::WorkBufferArray<void con
st*> const&, gras::WorkBufferArray<void*> const&) ()
from /usr/local/lib/python2.7/dist-packages/gras/_GRAS_PyBlock.so
#12 0x00007f007faa114c in gras::BlockActor::task_main() ()
from /usr/local/lib/libgras.so.0.0.0
#13 0x00007f007fa93a19 in
Theron::Detail::MessageHandler<gras::BlockActor,
gras::SelfKickMessage>::Handle(Theron::Actor*, Theron::Detail::IMessage
const*) ()
from /usr/local/lib/libgras.so.0.0.0
#14 0x00007f007fa548bf in
Theron::Detail::ThreadPool<Theron::Detail::MailboxQueueTheron::Detail::BlockingMonitor,
Theron::Detail::WorkerContext,
Theron::Detail::MailboxProcessor>::ThreadEntryPoint(void*) ()
from /usr/local/lib/libgras.so.0.0.0
#15 0x00007f007e9edda9 in ?? () from /usr/lib/libboost_thread.so.1.48.0
#16 0x00007f0082617e9a in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#17 0x00007f00813f13fd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#18 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7f0065363700 (LWP 17798)):
#0 0x00007f008261bd84 in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f007fa54be7 in
Theron::Detail::ThreadPool<Theron::Detail::MailboxQueueTheron::Detail::BlockingMonitor,
Theron::Detail::WorkerContext,
Theron::Detail::MailboxProcessor>::ThreadEntryPoint(void*) ()
from /usr/local/lib/libgras.so.0.0.0
#2 0x00007f007e9edda9 in ?? () from /usr/lib/libboost_thread.so.1.48.0
#3 0x00007f0082617e9a in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#4 0x00007f00813f13fd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7f0065b64700 (LWP 17797)):
#0 0x00007f008261c0fe in pthread_cond_timedwait@@GLIBC_2.3.2 ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f007e9f0668 in
boost::this_thread::sleep(boost::posix_time::ptime const&) () from
/usr/lib/libboost_thread.so.1.48.0
#2 0x00007f007fa576d7 in
Theron::Detail::Scheduler<Theron::Detail::MailboxQueueTheron::Detail::BlockingMonitor

::ManagerThreadProc() ()
from /usr/local/lib/libgras.so.0.0.0
#3 0x00007f007e9edda9 in ?? () from /usr/lib/libboost_thread.so.1.48.0
#4 0x00007f0082617e9a in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#5 0x00007f00813f13fd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#6 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f00669e4700 (LWP 17796)):
#0 0x00007f00813e5a43 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f00709b6ff6 in ?? () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f00709b745a in g_main_loop_run ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f006ed925e6 in ?? () from
/usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4 0x00007f00709d89b5 in ?? () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f0082617e9a in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#6 0x00007f00813f13fd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f00671e5700 (LWP 17794)):
#0 0x00007f00813e5a43 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f00709b6ff6 in ?? () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f00709b745a in g_main_loop_run ()
from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f00671ea98b in ?? ()
from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so
#4 0x00007f00709d89b5 in ?? () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f0082617e9a in start_thread ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#6 0x00007f00813f13fd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7 0x0000000000000000 in ?? ()
Thread 1 (Thread 0x7f0082a28700 (LWP 17776)):
#0 0x00007f008261bd84 in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib/x86_64-linux-gnu/libpthread.so.0
#1 0x00007f007faa2d51 in
boost::condition_variable::wait(boost::unique_lockboost::mutex&) ()
from
/usr/local/lib/libgras.so.0.0.0
#2 0x00007f007fabd92d in void
gras::ElementImpl::bcast_prio_msggras::TopInertMessage(gras::TopInertMessage
const&) [clone .constprop.283] ()
from /usr/local/lib/libgras.so.0.0.0
#3 0x00007f007fabdba5 in gras::TopBlock::stop() ()
from /usr/local/lib/libgras.so.0.0.0
#4 0x00007f007599e141 in gras::TopBlockPython::stop() ()
from
/usr/local/lib/python2.7/dist-packages/gras/_GRAS_PyHierBlocks.so
#5 0x00007f0075dc8de3 in _wrap_TopBlock_stop ()
from /usr/local/lib/python2.7/dist-packages/gras/_GRAS_TopBlock.so
#6 0x0000000000486614 in PyEval_EvalFrameEx ()
#7 0x0000000000486e02 in PyEval_EvalFrameEx ()
#8 0x0000000000486e02 in PyEval_EvalFrameEx ()
#9 0x000000000048d930 in PyEval_EvalCodeEx ()
#10 0x00000000004246a1 in PyRun_FileExFlags ()
#11 0x000000000042492e in PyRun_SimpleFileExFlags ()
#12 0x0000000000425cb6 in Py_Main ()
#13 0x00007f008131e76d in __libc_start_main ()
from /lib/x86_64-linux-gnu/libc.so.6

Thanks and Regards,
Sumedha