[Live-devel] New version of the "LIVE555 Streaming Media" code - restructures the "RTPServer" class

[BENNE Christophe]

Hi Ross,

I would like to report a problem since I upgraded to live 2015.06.11 and higher. I experienced crashes when releasing a RTSPServer which has client connections. It happens in the GenericMediaServer destructor, connections destructor invokes RTSPServer code but this part of the object is already destroyed, see stack below.

I was able to reproduce the problem with a slightly modified live555MediaServer (live555MediaServer.cpp patch attached) : code added to stop main loop when SIGINT is received and release RTSPServer using Media::close method. If Ctrl-C is hit while live555MediaServer is streaming a file, the crash occurs.

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Reading symbols from /home/xophe/dev/picata/live-testcase/live/mediaServer/live555MediaServer...done.

warning: core file may not match specified executable file.
[New LWP 4699]

warning: Can't read pathname for load map: Input/output error.
Core was generated by `./live555MediaServer'.
Program terminated with signal 11, Segmentation fault.
#0  0x0000000000000000 in ?? ()
(gdb) thread apply all where

Thread 1 (LWP 4699):
#0  0x0000000000000000 in ?? ()
#1  0x00007f56460a1a1d in RTSPServer::stopTCPStreamingOnSocket (this=0x24c28e0, socketNum=6) at RTSPServer.cpp:345
#2  0x00007f56460a1aa6 in RTSPServer::RTSPClientConnection::closeSocketsRTSP (this=0x24c2cb0) at RTSPServer.cpp:706
#3  0x00007f56460a1b3d in RTSPServer::RTSPClientConnection::~RTSPClientConnection (this=0x24c2cb0, __in_chrg=<optimized out>) at RTSPServer.cpp:383
#4  0x00007f56460a9ce9 in RTSPServerSupportingHTTPStreaming::RTSPClientConnectionSupportingHTTPStreaming::~RTSPClientConnectionSupportingHTTPStreaming (this=0x24c2cb0, __in_chrg=<optimized out>)
    at RTSPServerSupportingHTTPStreaming.cpp:61
#5  0x00007f564609d369 in GenericMediaServer::~GenericMediaServer (this=0x24c28e0, __in_chrg=<optimized out>) at GenericMediaServer.cpp:115
#6  0x0000000000402b49 in DynamicRTSPServer::~DynamicRTSPServer (this=0x24c28e0, __in_chrg=<optimized out>) at DynamicRTSPServer.cpp:42
#7  0x0000000000402886 in main (argc=<optimized out>, argv=<optimized out>) at live555MediaServer.cpp:113
(gdb)


Best regards.

Christophe BENNE


// --

Christophe BENNE

Thales Communication & Security
20-22 rue Grange Dame Rose
CS 90519
78141 VELIZY Cedex
FRANCE
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