[Freeswitch-users] Leg stuck in a conference

Tue Sep 23 21:33:59 MSD 2014

Thanks Anthony!
I got two such stuck legs right now.  Here are their threads.

Thread 45 (Thread 0x7f3f574fb940 (LWP 25467)):
#0  0x0000003d8d207c65 in pthread_join () from /lib64/libpthread.so.0
#1  0x00007f3f712b9db9 in apr_thread_join () from
/usr/local/freeswitch/lib/libfreeswitch.so.1
#2  0x00007f3f71186d2c in switch_thread_join (retval=0x7f3f574fa0fc,
thd=0x7f3f683f8cb8) at src/switch_apr.c:1171
#3  0x00007f3f667b233c in conference_loop_output (member=0x7f3f574fa540) at
mod_conference.c:4481
#4  0x00007f3f667c1a4c in conference_function (session=0x7f3f503a8b48,
data=0x7f3f681cbd10
"5d7b86e0-3ea5-11e4-b722-1231393fb01c at default+flags{join-only}")
at mod_conference.c:8695
#5  0x00007f3f711c23e7 in switch_core_session_exec (session=0x7f3f503a8b48,
application_interface=0x7f3f600e1920, arg=0x7f3f681cbd10
"5d7b86e0-3ea5-11e4-b722-1231393fb01c at default+flags{join-only}")
    at src/switch_core_session.c:2862
#6  0x00007f3f711c1c85 in switch_core_session_execute_application_get_flags
(session=0x7f3f503a8b48, app=0x7f3f681cbd00 "conference",
    arg=0x7f3f681cbd10
"5d7b86e0-3ea5-11e4-b722-1231393fb01c at default+flags{join-only}",
flags=0x0) at src/switch_core_session.c:2737
#7  0x00007f3f711c3c3c in switch_core_standard_on_execute
(session=0x7f3f503a8b48) at src/switch_core_state_machine.c:281
#8  0x00007f3f711c4de0 in switch_core_session_run (session=0x7f3f503a8b48)
at src/switch_core_state_machine.c:530
#9  0x00007f3f711be45c in switch_core_session_thread
(thread=0x7f3f50b9f990, obj=0x7f3f503a8b48) at
src/switch_core_session.c:1597
#10 0x00007f3f711be913 in switch_core_session_thread_pool_worker
(thread=0x7f3f50b9f990, obj=0x7f3f50b9f820) at
src/switch_core_session.c:1689
#11 0x00007f3f712b9b7d in dummy_worker () from
/usr/local/freeswitch/lib/libfreeswitch.so.1
#12 0x0000003d8d20683d in start_thread () from /lib64/libpthread.so.0
#13 0x0000003d8cad4f8d in clone () from /lib64/libc.so.6

Thread 60 (Thread 0x7f3f575af940 (LWP 28590)):
#0  0x0000003d8d207c65 in pthread_join () from /lib64/libpthread.so.0
#1  0x00007f3f712b9db9 in apr_thread_join () from
/usr/local/freeswitch/lib/libfreeswitch.so.1
#2  0x00007f3f71186d2c in switch_thread_join (retval=0x7f3f575ae0fc,
thd=0x215a358) at src/switch_apr.c:1171
#3  0x00007f3f667b233c in conference_loop_output (member=0x7f3f575ae540) at
mod_conference.c:4481
#4  0x00007f3f667c1a4c in conference_function (session=0x7f3f50087998,
data=0x2152a38 "2e42aba0-430b-11e4-bc8b-22000a1cca7e at default+flags{join-only}")
at mod_conference.c:8695
#5  0x00007f3f711c23e7 in switch_core_session_exec (session=0x7f3f50087998,
application_interface=0x7f3f600e1920, arg=0x2152a38
"2e42aba0-430b-11e4-bc8b-22000a1cca7e at default+flags{join-only}")
    at src/switch_core_session.c:2862
#6  0x00007f3f711c1c85 in switch_core_session_execute_application_get_flags
(session=0x7f3f50087998, app=0x2152a28 "conference", arg=0x2152a38
"2e42aba0-430b-11e4-bc8b-22000a1cca7e at default+flags{join-only}",
    flags=0x0) at src/switch_core_session.c:2737
#7  0x00007f3f711c3c3c in switch_core_standard_on_execute
(session=0x7f3f50087998) at src/switch_core_state_machine.c:281
#8  0x00007f3f711c4de0 in switch_core_session_run (session=0x7f3f50087998)
at src/switch_core_state_machine.c:530
#9  0x00007f3f711be45c in switch_core_session_thread (thread=0x214d4b0,
obj=0x7f3f50087998) at src/switch_core_session.c:1597
#10 0x00007f3f711be913 in switch_core_session_thread_pool_worker
(thread=0x214d4b0, obj=0x214d340) at src/switch_core_session.c:1689
#11 0x00007f3f712b9b7d in dummy_worker () from
/usr/local/freeswitch/lib/libfreeswitch.so.1
#12 0x0000003d8d20683d in start_thread () from /lib64/libpthread.so.0
#13 0x0000003d8cad4f8d in clone () from /lib64/libc.so.6

On Tue, Sep 23, 2014 at 9:16 AM, Anthony Minessale <
anthony.minessale at gmail.com> wrote:

> It may be trapped inside some blocking call from within the conference.
> Your best bet would be to catch it in that state, do the kick, when it
> doesn't work gcore the process and open it in gdb and get "thread apply all
> bt" then you can see the stack trace for that session and see which code
> its blocking on.
>
> The BREAK signal you show there is designed to pull it out of most
> blocking situations so it must be something particular.
>
>
>
>
> On Tue, Sep 23, 2014 at 10:53 AM, Oleg Stolyar <olegstolyar at gmail.com>
> wrote:
>
>> Guys,
>>
>> I wonder if anyone else ran into this situation:  Very rarely I have a
>> conference participant stuck in a conference.  When I try to run kick
>> command on that conference, it returns "OK kicked <member ID>" but nothing
>> happens.  In the logs there is only this:
>>
>> db1790fe-fa75-42a6-9054-75c600b9539c 2014-09-23 15:43:07.066947 [DEBUG] mod_conference.c:5619 Send signal sofia/<profile>/anonymous at anonymous.invalid [BREAK]
>>
>>
>> As an additional piece of information if I use uuid_kill on the leg, it does disconnect the leg and ends the conference.
>>
>> Any suggestions?
>>
>>
>> _________________________________________________________________________
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>>
>> 
>> 
>>
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>
>
>
> --
> Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬
>
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>
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>
> 
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