Kurento Media Server Segmentation fault Problem

[Alec Chen]

Can someone help us? Our kurento-media-server 6.16.0 installed on ubuntu 18.04 often has the following crash error.Thanks.

Segmentation fault (thread 139798827788032, pid 20959)
Stack trace:
[__pthread_mutex_clocklock_common]
/lib/x86_64-linux-gnu/libpthread.so.0:0xC8C3
[kurento::_media_element_pad_added(_GstElement*, _GstPad*, void*)]
/usr/lib/x86_64-linux-gnu/libkmscoreimpl.so.6:0xFD0E8
[ffi_call_unix64]
/usr/lib/x86_64-linux-gnu/libffi.so.6:0x5DAE
[ffi_call]
/usr/lib/x86_64-linux-gnu/libffi.so.6:0x571F
[g_cclosure_marshal_generic]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0:0x108B1
[g_closure_invoke]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0:0x100BD
[g_signal_handler_disconnect]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0:0x2300E
[g_signal_emit_valist]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0:0x2B6F5
[g_signal_emit]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0:0x2C10F
[gst_element_add_pad]
/usr/lib/x86_64-linux-gnu/libgstreamer-1.5.so.0:0x55F28
[kms_element_get_output_element]
/usr/lib/x86_64-linux-gnu/libkmsgstcommons.so.6:0x201AE
[kms_webrtc_endpoint_get_type]
/usr/lib/x86_64-linux-gnu/libkmswebrtcendpointlib.so.6:0x1250B
[kms_webrtc_transport_disable_latency_notification]
/usr/lib/x86_64-linux-gnu/libkmswebrtcendpointlib.so.6:0xD014
[g_closure_invoke]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0:0x100BD
[g_signal_handler_disconnect]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0:0x2300E
[g_signal_emit_valist]
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0:0x2B6F5
 

[Juan Navarro]

Please install the debugging symbols, so next time the Stack Trace includes file name and line numbers:

https://doc-kurento.readthedocs.io/en/latest/dev/dev_guide.html#install-debug-symbols

Better yet, if you know how, and are able to, run with a GDB debugging session:

https://doc-kurento.readthedocs.io/en/latest/dev/dev_guide.html#gdb-from-installation

that way we can pinpoint the exact place where the error is happening (in case of getting a crash with GDB, follow the "GDB commands" section to print a backtrace)

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[Juan Navarro]

Also please, if possible, try with the latest development nightly build, to know if the crash still happens in the latest version of the source code

https://doc-kurento.readthedocs.io/en/latest/user/installation_dev.html

If you try it in the same machine, please be careful to fully uninstall the older packages before installing the newer ones (instructions include a section called "Local upgrade" for this).

Thanks

--
Juan Navarro
Kurento developer
@j1elo at GitHub & Twitter