Hi,
I found a strange crash in Python PJSUA2 when iterating call info
medias. See the patch pjproject-fdport.patch, file
pjproject/pjsip_apps/src/swig/python/audio_fd.py. If you replace
for i in range(...)
with
for mi in info.media
as in the comment, you get the crash:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff47e8700 (LWP 24109)]
0x0000000000501bb8 in ?? ()
(gdb) bt
#0 0x0000000000501bb8 in ?? ()
#1 0x0000000000501fae in ?? ()
#2 0x00007ffff5ce7b95 in ~SwigPtr_PyObject (this=0x7fffec01ce38,
__in_chrg=<optimized out>) at pjsua2_wrap.cpp:3697
#3 ~SwigPtr_PyObject (this=0x7fffec01ce38, __in_chrg=<optimized out>)
at pjsua2_wrap.cpp:4745
#4 ~SwigPyIterator (this=0x7fffec01ce30, __in_chrg=<optimized out>)
at pjsua2_wrap.cpp:4003
#5 ~SwigPyIterator_T (this=0x7fffec01ce30, __in_chrg=<optimized out>)
at pjsua2_wrap.cpp:4646
#6 ~SwigPyIteratorClosed_T (this=0x7fffec01ce30, __in_chrg=<optimized out>)
at pjsua2_wrap.cpp:4745
#7
swig::SwigPyIteratorClosed_T<__gnu_cxx::__normal_iterator<pj::CallMediaInfo*,
std::vector<pj::CallMediaInfo, std::allocator<pj::CallMediaInfo> > >,
pj::CallMediaInfo, swig::from_oper<pj::CallMediaInfo>
>::~SwigPyIteratorClosed_T (this=0x7fffec01ce30,
__in_chrg=<optimized out>) at pjsua2_wrap.cpp:4745
#8 0x00007ffff5c3cb41 in _wrap_delete_SwigPyIterator (args=<optimized out>)
at pjsua2_wrap.cpp:8008
#9 0x00000000004d91b6 in PyObject_Call ()
#10 0x00000000004d9e1b in PyObject_CallFunctionObjArgs ()
#11 0x00007ffff5c04045 in SwigPyObject_dealloc (v=0x7ffff544e2d0)
at pjsua2_wrap.cpp:1698
#12 0x000000000042618d in ?? ()
#13 0x0000000000501dc8 in ?? ()
#14 0x000000000054d0a2 in PyEval_EvalFrameEx ()
#15 0x0000000000575d92 in PyEval_EvalCodeEx ()
#16 0x0000000000577ab0 in ?? ()
#17 0x00000000004d91b6 in PyObject_Call ()
#18 0x00000000004c91fa in ?? ()
#19 0x00000000004d91b6 in PyObject_Call ()
#20 0x000000000042e317 in PyObject_CallMethod ()
#21 0x00007ffff5c7766d in SwigDirector_Call::onCallMediaState
(this=0x7fffec013cc0,
prm=...) at pjsua2_wrap.cpp:7146
#22 0x00007ffff5d396d3 in
pj::Call::processMediaUpdate(pj::OnCallMediaStateParam&) ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#23 0x00007ffff5d1d4ed in pj::Endpoint::on_call_media_state(int) ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#24 0x00007ffff5d590ef in pjsua_call_on_media_update ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#25 0x00007ffff5d79ad4 in inv_negotiate_sdp ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#26 0x00007ffff5d7a2dd in process_answer ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#27 0x00007ffff5d7a789 in pjsip_inv_answer ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#28 0x00007ffff5d55bfe in pjsua_call_answer2 ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#29 0x00007ffff5d361d3 in pj::Call::answer(pj::CallOpParam const&) ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#30 0x00007ffff5c7cbbb in _wrap_Call_answer (args=<optimized out>)
at pjsua2_wrap.cpp:77213
#31 0x0000000000550138 in PyEval_EvalFrameEx ()
#32 0x0000000000575d92 in PyEval_EvalCodeEx ()
#33 0x000000000054c028 in PyEval_EvalFrameEx ()
#34 0x0000000000575d92 in PyEval_EvalCodeEx ()
#35 0x0000000000577ab0 in ?? ()
#36 0x00000000004d91b6 in PyObject_Call ()
#37 0x00000000004c91fa in ?? ()
#38 0x00000000004d91b6 in PyObject_Call ()
#39 0x000000000042e317 in PyObject_CallMethod ()
#40 0x00007ffff5c7860d in SwigDirector_Account::onIncomingCall
(this=0x9cde40, prm=...)
at pjsua2_wrap.cpp:6806
#41 0x00007ffff5d1c721 in pj::Endpoint::on_incoming_call(int, int,
pjsip_rx_data*) ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#42 0x00007ffff5d54357 in pjsua_call_on_incoming ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#43 0x00007ffff5d5c525 in mod_pjsua_on_rx_request ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#44 0x00007ffff5da257b in pjsip_endpt_process_rx_data ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#45 0x00007ffff5da28c0 in endpt_on_rx_msg ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#46 0x00007ffff5dab4cb in pjsip_tpmgr_receive_packet ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#47 0x00007ffff5dac33f in udp_on_read_complete ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#48 0x00007ffff5e78298 in ioqueue_dispatch_read_event ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#49 0x00007ffff5e7a39d in pj_ioqueue_poll ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#50 0x00007ffff5da224b in pjsip_endpt_handle_events2 ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#51 0x00007ffff5d5f177 in pjsua_handle_events ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#52 0x00007ffff5d5c798 in worker_thread ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#53 0x00007ffff5e7b41f in thread_main ()
from /home/tom/pjproject-2.2/pjsip-apps/src/swig/python/_pjsua2.so
#54 0x00007ffff7bc4e9a in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#55 0x00007ffff699e3fd in clone () from /lib/x86_64-linux-gnu/libc.so.6
#56 0x0000000000000000 in ?? ()
Ubuntu 12.04.4 precise x64
gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
Python 2.7.3
SWIG Version 2.0.4
Cheers,
- Vali
