using vlc play srt stream, play fail and coredump

[flnewsoft]

Describe the bug
two problem:

1. using vlc play srt stream, play fail and coredump
2. after coredump happen, can't start srs successfully.

Version
5.0.

To Reproduce
Steps to reproduce the behavior:

1. come to centos7.2
2. download and build srs
3. objs/srs -c conf/srt.conf
4. using ffmpeg to send srt stream to srs
5. using vlc to play srt stream, some error report:
6. [2024-08-08 14:30:03.226][INFO][5737][a7879328] SRT: before dispose resource(srt-ts-conn)(0x7f046406f340), conns=2, zombies=0, ign=0, inz=0, ind=0
   [2024-08-08 14:30:03.226][ERROR][5737][a7879328][104] srt serve error code=6007(SrtStreamBusy)(SRT stream already exists or busy) : srt stream /live/livestream busy
   thread [5737][a7879328]: acquire_publish() [./src/app/srs_app_srt_conn.cpp:368][errno=104](Connection reset by peer)
   [2024-08-08 14:30:03.226][INFO][5737][570d94tp] SRT: clear zombies=1 resources, conns=2, removing=0, unsubs=0
   [2024-08-08 14:30:03.226][INFO][5737][a7879328] SRT: disposing #0 resource(srt-ts-conn)(0x7f046406f340), conns=2, disposing=1, zombies=0
   [2024-08-08 14:30:03.226][ERROR][5737][a7879328][104][SRT] /root/srs/srs_5/srs/trunk/objs/Platform-SRS5-Linux-3.10.0-GCC4.8.5-x86_64/srt-1-fit/srtcore/epoll.cpp:906(update_events) # : epoll/update: IPE: update struck E1 which is NOT SUBSCRIBED to @652245706(Connection reset by peer)
   [2024-08-08 14:30:03.226][INFO][5737][a7879328] close srt_fd=652245706
7. don't stop vlc, and push CTRL_C to stop srs, coredump happen.
8. objs/srs -c conf/srt.conf
9. some error report:
10. [2024-08-08 15:07:47.808][INFO][26015][c837y74f] SRT: before dispose resource(srt-ts-conn)(0x7f542405b1b0), conns=1, zombies=0, ign=0, inz=0, ind=0
    [2024-08-08 15:07:47.808][ERROR][26015][c837y74f][4] srt serve error code=6002(SrtTimeout)(SRT connection is timeout) : srt: recvmsg : wait readable : srt socket 7871921 timeout
    thread [26015][c837y74f]: do_publishing() [./src/app/srs_app_srt_conn.cpp:478][errno=62]
    thread [26015][c837y74f]: recvmsg() [./src/protocol/srs_protocol_srt.cpp:801][errno=62]
    thread [26015][c837y74f]: wait_readable() [./src/protocol/srs_protocol_srt.cpp:861][errno=62](Interrupted system call)
    [2024-08-08 15:07:47.808][INFO][26015][7089iv44] SRT: clear zombies=1 resources, conns=1, removing=0, unsubs=0
11. change srt.conf and change srt port from 10080 to 10081, start srs ok.

[winlinvip]

Could you attach the stack of coredump?