July 2009 - freeswitch-dev@lists.freeswitch.org

[Freeswitch-dev] FreeSWITCH on Windows crashing when doing deflect/REFER
by Peter Olsson 12 Oct '09

12 Oct '09

I have a problem with FreeSWITCH (r13175) when using REFER. If running inside Visual Studio, everytime (during the REFER) I get a "...has triggered a breakpoint". It's possible to click continue to go on, but eventually (another 2-3 calls) FreeSWITCH crasches completely. When running outside Visual Studio I get a crasch after maybe 10 calls. Another interesting scenario is when running outside the debugger and I enable siptracing it's much more stable - even though it crasches eventually - this is what makes me wonder about mutexes... I've tracked it down to calls to malloc() and calloc() which in 100% of the cases is in the top of the call stack. My thought is that it might be related to a mutex issue somewhere. Below I've copied the call stack from two times it's happened to me. These are the most common traces, but sometimes it's a malloc being called from the sqlite lib. But so far I always think it's been related to a malloc/calloc. These things have occured in a couple of other places as well, for instance when a SIP registration fails (registering to an external server) with error 404 I also get a breakpoint triggered, but I don't think that has caused any crasches yet. I've tried to debug this on my own, but so far I didn't find anything, so that's why I'm asking you guys :) I think I'm going to try the same on Linux as well, and see if it works differently there. If you need more info, please let me know, I'll try to help out as much as possible. I thought I'd post this here first, if you have any ideas. If not I'll file a Jira for the issue. ----- ntdll.dll!DbgBreakPoint() [Frames below may be incorrect and/or missing, no symbols loaded for ntdll.dll] ntdll.dll!RtlpNtMakeTemporaryKey() + 0x3eee bytes ntdll.dll!RtlTimeToElapsedTimeFields() + 0xd8c3 bytes ntdll.dll!RtlTryEnterCriticalSection() + 0x66f bytes ntdll.dll!RtlpNtMakeTemporaryKey() + 0x4785 bytes ntdll.dll!RtlTimeToElapsedTimeFields() + 0xd6f1 bytes ntdll.dll!RtlTryEnterCriticalSection() + 0x66f bytes > msvcr90d.dll!_heap_alloc_base(unsigned int size=41) Line 105 + 0x28 bytes C msvcr90d.dll!_heap_alloc_dbg_impl(unsigned int nSize=5, int nBlockUse=1, const char * szFileName=0x00000000, int nLine=0, int * errno_tmp=0x0739f498) Line 427 + 0x9 bytes C++ msvcr90d.dll!_nh_malloc_dbg_impl(unsigned int nSize=5, int nhFlag=0, int nBlockUse=1, const char * szFileName=0x00000000, int nLine=0, int * errno_tmp=0x0739f498) Line 239 + 0x19 bytes C++ msvcr90d.dll!_nh_malloc_dbg(unsigned int nSize=5, int nhFlag=0, int nBlockUse=1, const char * szFileName=0x00000000, int nLine=0) Line 296 + 0x1d bytes C++ msvcr90d.dll!malloc(unsigned int nSize=5) Line 56 + 0x15 bytes C++ FreeSwitch.dll!my_dup(const char * s=0x035724c8) Line 95 + 0xc bytes C FreeSwitch.dll!switch_event_add_header_string(switch_event * event=0x0370fe00, switch_stack_t stack=SWITCH_STACK_BOTTOM, const char * header_name=0x0739f50c, const char * data=0x035724c8) Line 785 + 0x9 bytes C FreeSwitch.dll!switch_channel_event_set_extended_data(switch_channel * channel=0x05d86ab0, switch_event * event=0x0370fe00) Line 1365 C FreeSwitch.dll!switch_channel_event_set_data(switch_channel * channel=0x05d86ab0, switch_event * event=0x0370fe00) Line 1378 C FreeSwitch.dll!switch_core_session_exec(switch_core_session * session=0x05d82538, const switch_application_interface * application_interface=0x0357c258, const char * arg=0x05d2b8b0) Line 1472 C FreeSwitch.dll!switch_core_session_execute_application(switch_core_session * session=0x05d82538, const char * app=0x05d2b8a8, const char * arg=0x05d2b8b0) Line 1392 C FreeSwitch.dll!switch_core_standard_on_execute(switch_core_session * session=0x05d82538) Line 168 + 0x16 bytes C FreeSwitch.dll!switch_core_session_run(switch_core_session * session=0x05d82538) Line 490 + 0x204 bytes C FreeSwitch.dll!switch_core_session_thread(apr_thread_t * thread=0x05ca71f8, void * obj=0x05d82538) Line 1060 C libapr.dll!dummy_worker(void * opaque=0x05ca71f8) Line 80 C msvcr90d.dll!_callthreadstartex() Line 348 + 0xf bytes C msvcr90d.dll!_threadstartex(void * ptd=0x03574318) Line 331 C kernel32.dll!BaseThreadInitThunk() + 0x12 bytes ntdll.dll!RtlInitializeExceptionChain() + 0x63 bytes ntdll.dll!RtlInitializeExceptionChain() + 0x36 bytes ---------------- ntdll.dll!DbgBreakPoint() [Frames below may be incorrect and/or missing, no symbols loaded for ntdll.dll] ntdll.dll!RtlpNtMakeTemporaryKey() + 0x3eee bytes ntdll.dll!RtlTimeToElapsedTimeFields() + 0xd8c3 bytes ntdll.dll!RtlTryEnterCriticalSection() + 0x66f bytes ntdll.dll!RtlpNtMakeTemporaryKey() + 0x4785 bytes ntdll.dll!RtlTimeToElapsedTimeFields() + 0xd6f1 bytes ntdll.dll!RtlTryEnterCriticalSection() + 0x66f bytes > msvcr90d.dll!_heap_alloc_base(unsigned int size=544) Line 105 + 0x28 bytes C msvcr90d.dll!_heap_alloc_dbg_impl(unsigned int nSize=508, int nBlockUse=1, const char * szFileName=0x00000000, int nLine=0, int * errno_tmp=0x042df664) Line 427 + 0x9 bytes C++ msvcr90d.dll!_nh_malloc_dbg_impl(unsigned int nSize=508, int nhFlag=0, int nBlockUse=1, const char * szFileName=0x00000000, int nLine=0, int * errno_tmp=0x042df664) Line 239 + 0x19 bytes C++ msvcr90d.dll!_calloc_dbg_impl(unsigned int nNum=1, unsigned int nSize=508, int nBlockUse=1, const char * szFileName=0x00000000, int nLine=0, int * errno_tmp=0x042df664) Line 593 + 0x20 bytes C++ msvcr90d.dll!_calloc_dbg(unsigned int nNum=1, unsigned int nSize=508, int nBlockUse=1, const char * szFileName=0x00000000, int nLine=0) Line 644 + 0x1d bytes C++ msvcr90d.dll!calloc(unsigned int nNum=1, unsigned int nSize=508) Line 56 + 0x13 bytes C++ mod_sofia.dll!su_home_new(unsigned int size=508) Line 562 + 0xe bytes C mod_sofia.dll!msg_create(const msg_mclass_s * mc=0x036f89e8, int flags=2) Line 61 + 0x12 bytes C mod_sofia.dll!nta_msg_create(nta_agent_s * agent=0x037c5430, int flags=0) Line 3305 + 0x16 bytes C mod_sofia.dll!nua_client_request_template(nua_client_request * cr=0x038c2568) Line 613 + 0x11 bytes C mod_sofia.dll!nua_client_init_request0(nua_client_request * cr=0x038c2568) Line 493 + 0x9 bytes C mod_sofia.dll!nua_client_init_request(nua_client_request * cr=0x038c2568) Line 441 + 0x9 bytes C mod_sofia.dll!nua_client_create(nua_handle_s * nh=0x038607f0, int event=33, const nua_client_methods_t * methods=0x03ca2268, const tagi_t * const tags=0x00000000) Line 199 + 0x9 bytes C mod_sofia.dll!nua_session_usage_shutdown(nua_handle_s * nh=0x038607f0, nua_dialog_state * ds=0x03860828, nua_dialog_usage * du=0x0386adc0) Line 1622 + 0x12 bytes C mod_sofia.dll!nua_dialog_usage_shutdown(su_home_s * owner=0x038607f0, nua_dialog_state * ds=0x03860828, nua_dialog_usage * du=0x0386adc0) Line 610 + 0x19 bytes C mod_sofia.dll!nua_dialog_shutdown(su_home_s * owner=0x038607f0, nua_dialog_state * ds=0x03860828) Line 587 + 0x11 bytes C mod_sofia.dll!nua_stack_destroy_handle(nua_s * nua=0x037ca4a8, nua_handle_s * nh=0x038607f0, const tagi_t * tags=0x03872944) Line 918 + 0x10 bytes C mod_sofia.dll!nua_stack_signal(nua_s * nua=0x037ca4a8, su_msg_s * * msg=0x042df868, nua_ee_data * ee=0x0387292c) Line 641 + 0x11 bytes C mod_sofia.dll!su_base_port_execute_msgs(su_msg_s * queue=0x00000000) Line 280 + 0x2c bytes C mod_sofia.dll!su_base_port_getmsgs(su_port_s * self=0x037cac68) Line 202 + 0x9 bytes C mod_sofia.dll!su_base_port_run(su_port_s * self=0x037cac68) Line 335 + 0x11 bytes C mod_sofia.dll!su_port_run(su_port_s * self=0x037cac68) Line 326 + 0x11 bytes C mod_sofia.dll!su_root_run(su_root_s * self=0x037cf1c0) Line 819 + 0xc bytes C mod_sofia.dll!su_pthread_port_clone_main(void * varg=0x03e3f96c) Line 324 + 0x9 bytes C pthreadVC2.dll!ptw32_threadStart(void * vthreadParms=0x03771cb8) Line 219 + 0x9 bytes C msvcr90d.dll!_callthreadstartex() Line 348 + 0xf bytes C msvcr90d.dll!_threadstartex(void * ptd=0x0378a3e8) Line 331 C kernel32.dll!BaseThreadInitThunk() + 0x12 bytes ntdll.dll!RtlInitializeExceptionChain() + 0x63 bytes ntdll.dll!RtlInitializeExceptionChain() + 0x36 bytes

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[Freeswitch-dev] what's the best way to change code and make patch
by Seven Du 01 Aug '09

01 Aug '09

Hi, Let's say I made 2 changes to one file, and svn diff can generate one diff file, but I want two changes in different patch files so developers may apply both or only one to trunk. The simple way would be do only one change one time, but that one might be take time or never to be applied into trunk, this makes complicated to maintenance code. The other way maybe to make a branch, but takes extra works to keep sync with trunk. Ideas? Thanks.

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[Freeswitch-dev] ClueCon 2009 - Last Minute Updates and Information
by Michael Collins 30 Jul '09

30 Jul '09

Hello all! Please visit the ClueCon website <http://www.cluecon.com> for information about the meet and greet on Tuesday, August 4th being sponsored by iCall. Please be sure to RSVP at the link provided so that the great folks at iCall know how many people they'll be hosting. Can you believe it's only five days until ClueCon 2009! It's not too late to get registered. Please call us at 877.742.CLUE and sign up today. You don't want to miss out on all the great stuff happening this year! We're all looking forward to meeting each other next week. See you in Chicago! -Michael Collins http://www.cluecon.com 877.742.CLUE

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[Freeswitch-dev] FreeSWITCH FYI: Interview With Anthony
by Michael Collins 30 Jul '09

30 Jul '09

FYI, BandwidthU's interview with Anthony has been posted. Click here<http://digg.com/d3yzzj>to visit part 3 of the interview which has links to parts one and two. Also, be sure to Digg it! Thanks, Michael

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[Freeswitch-dev] FishEye Down?
by Giovanni Maruzzelli 29 Jul '09

29 Jul '09

FishEye seems to be down since some hours (now is CET 1:52 PM) -giovanni

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[Freeswitch-dev] get rid of mod_loopback for outbound calls
by Tamas Cseke 28 Jul '09

28 Jul '09

Hello, we are using mod_loopback for outbound calls to be able to do a dialplan hunt before the actual call origination. change caller number, change routing according to the prefix and something like that. We have talked about a lot, that this is "not very" efficient because we have 2 extra channels (loopbacks) for every call. I diged into the state machine code and figured out that if I change the on_routing state handler functions for switch_ivr_originate to don't veto the standard behavior I can perform a dilplan hunt. But I still have to originate a channel which makes a dialplan hunt and originate another. and this isn't what we really would like to... I've got the following tip from Anthony earlier: 0416 16:39:28 <@anthm> maybe i could make an api command to pretend to do a dialplan run and print out a list in inline format of what to do 0416 16:39:48 <@anthm> that you could feed to originate inline dialplan But I don't know how to implement this. I need some explanation. 1) the dialplan pretender api returns applications in inline format 2) we feed it to inline dialplan but how could we originate the call, how should the whole process look like? could you please give me an example? I was thinking about someting like this, but it doesn't make sense I quess. ${originate(call_url inline ${pretend_dialplan_hunt(exten XML context)})} Thanks in advance, Tamas

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[Freeswitch-dev] Recording Calls to Extensions
by Ian Quek 28 Jul '09

28 Jul '09

Hi, I have a question regarding editing the default.xml file in conf/dialplan. What I want to do, is set the dialplan to record calls on specific extensions, for example, 1002, but not on other extensions. So far, I've tried the following: <extension name="Local_Extension"> <condition field="destination_number" expression="^(1002)$"> <action application="set" data="RECORD_TITLE=... : : <action application="record_session" data="$${base_dir}/recordings/archive/${strftime(%Y-%m-%d-%H-%M-%S)}_${destination_number}_${caller_id_number}.wav"/> </condition> <condition field="destination_number" expression="^(10[01][0-9])$"> : : the rest of the applications that were originally in Local_Extension are here : : </condition> </extension> The problem with this, is that now all other calls that do not dial 1002 give me the error message that the "destination number is not available" I have also tried reversing the order: <extension name="Local_Extension"> <condition field="destination_number" expression="^(10[01][0-9])$"> : : the rest of the applications that were originally in Local_Extension are here : : </condition> <condition field="destination_number" expression="^(1002)$"> <action application="set" data="RECORD_TITLE=... : : <action application="record_session" data="$${base_dir}/recordings/archive/${strftime(%Y-%m-%d-%H-%M-%S)}_${destination_number}_${caller_id_number}.wav"/> </condition> </extension> However, this results in no recording being done at all. How do I fix this such that I only record calls to extension 1002, and allow all other calls through normally? thanks -Ian

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[Freeswitch-dev] Dialplan parser
by Ian Quek 28 Jul '09

28 Jul '09

Hi, I'm looking at the dialplan wiki, and it says that the entire dialplan is parsed when the call reaches the ROUTING state. Where can I find the code that actually parses the dialplan.xml file? thanks -Ian

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[Freeswitch-dev] Looking for Mandarin-speaking FreeSWITCH Developer
by Ron McLeod 27 Jul '09

27 Jul '09

I am looking for a Mandarin-speaking FreeSWITCH developer located in either: Vancouver Canada, Shenzhen China, or Hangzhou China. Please contact me off list.

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[Freeswitch-dev] Slashdot: How-to-Help-With-a-University-ICT-Strategy
by Giovanni Maruzzelli 27 Jul '09

27 Jul '09

http://ask.slashdot.org/story/09/07/27/1652247/How-to-Help-With-a-Universit… " An anonymous reader writes "I have been asked to contribute to my university's revised ICT (Information and Communication Technology) strategy and I am curious what fellow Slashdot members consider to be the main advice in this context. What are the major mistakes that organizations like universities make? Given the complexity of the different participants in a university, how does one have a coherent strategy that fulfills the needs of such a wide audience? How does one promote open source in a managerial culture? How does one deal with the curse of the virtual learning environment?"" http://ask.slashdot.org/comments.pl?sid=1316571&cid=28842157

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