[FFmpeg-trac] #6151(undetermined:new): ffserver crashes after requesting /status
FFmpeg
trac at avcodec.org
Wed Feb 15 13:00:15 EET 2017
#6151: ffserver crashes after requesting /status
-------------------------------------+-------------------------------------
Reporter: jazzl0ver | Type: defect
Status: new | Priority: important
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Hi.
{{{
ffmpeg at ubuntu:~/ffserver$ uname -a
Linux ubuntu 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 14:10:15 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux
ffmpeg at ubuntu:~/ffserver$ cat ffserver.conf
RTSPPort 8554
RTSPBindAddress 0.0.0.0
HTTPPort 8090
HTTPBindAddress 0.0.0.0
MaxBandwidth 10000
MaxClients 20
MaxHTTPConnections 20
NoDefaults
<Feed feed-kpp.ffm>
File feed-kpp.ffm
FileMaxSize 3M
Launch ffmpeg -re -rtsp_transport tcp -i rtsp://192.168.99.100:554
-override_ffserver -flags:v +global_header -flags:a +global_header -vcodec
copy
</Feed>
<Feed feed-pirit.ffm>
File feed-pirit.ffm
FileMaxSize 3M
Launch ffmpeg -re -rtsp_transport tcp -i rtsp://192.168.99.101:554
-override_ffserver -flags:v +global_header -flags:a +global_header -vcodec
copy
</Feed>
<Stream live-kpp>
Feed feed-kpp.ffm
Format rtp
VideoSize 800x480
AudioSampleRate 8000
</Stream>
<Stream live-pirit>
Feed feed-pirit.ffm
Format rtp
VideoSize 800x480
AudioSampleRate 8000
</Stream>
<Stream status>
Format status
</Stream>
ffmpeg at ubuntu:~/ffserver$ ffserver -v 9 -loglevel 99 -f ffserver.conf
ffserver version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the
FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-
suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
--incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl
--enable-shared --disable-stripping --disable-decoder=libopenjpeg
--disable-decoder=libschroedinger --enable-avresample --enable-avisynth
--enable-gnutls --enable-ladspa --enable-libass --enable-libbluray
--enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite
--enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-
libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-
libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-
libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr
--enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal
--enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883
--enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
Probing ffm score:101 size:2048
[ffm @ 0x1cc8960] Format ffm probed with size=2048 and score=101
[NULL @ 0x1cd70c0] Setting entry with key 'ar' to value '8000'
[NULL @ 0x1cd79e0] Setting entry with key 'video_size' to value '800x480'
[AVIOContext @ 0x1cccc00] Statistics: 4096 bytes read, 0 seeks
Probing ffm score:101 size:2048
[ffm @ 0x1cc8960] Format ffm probed with size=2048 and score=101
[NULL @ 0x1cd70c0] Setting entry with key 'ar' to value '8000'
[NULL @ 0x1cd79e0] Setting entry with key 'video_size' to value '800x480'
[AVIOContext @ 0x1cccc00] Statistics: 32768 bytes read, 0 seeks
feed-kpp.ffm: Pid 1396 exited with status 256 after 2 seconds
[NULL @ 0x1cd9aa0] Setting entry with key 'b' to value '0'
[NULL @ 0x1cd9aa0] Setting entry with key 'flags' to value '0x00400000'
[NULL @ 0x1cd9aa0] Setting entry with key 'chroma_sample_location' to
value '1'
[NULL @ 0x1cd9aa0] Setting entry with key 'time_base' to value '1/25'
[NULL @ 0x1cd9aa0] Setting entry with key 'bits_per_raw_sample' to value
'8'
[NULL @ 0x1cd9aa0] Setting entry with key 'pkt_timebase' to value
'1/1000000'
[NULL @ 0x1cd9aa0] Setting entry with key 'pixel_format' to value
'yuvj420p'
[NULL @ 0x1cd9aa0] Setting entry with key 'video_size' to value '800x480'
[NULL @ 0x1cd9f40] Setting entry with key 'b' to value '160000'
[NULL @ 0x1cd9f40] Setting entry with key 'ab' to value '160000'
[NULL @ 0x1cd9f40] Setting entry with key 'flags' to value '0x00400000'
[NULL @ 0x1cd9f40] Setting entry with key 'ar' to value '16000'
[NULL @ 0x1cd9f40] Setting entry with key 'ac' to value '1'
[NULL @ 0x1cd9f40] Setting entry with key 'frame_size' to value '1152'
[NULL @ 0x1cd9f40] Setting entry with key 'channel_layout' to value '4'
[NULL @ 0x1cd9f40] Setting entry with key 'side_data_only_packets' to
value '1'
[NULL @ 0x1cd9f40] Setting entry with key 'time_base' to value '1/16000'
[NULL @ 0x1cd9f40] Setting entry with key 'delay' to value '481'
[NULL @ 0x1cd9f40] Setting entry with key 'pkt_timebase' to value
'1/1000000'
Probing ffm score:101 size:2048
[ffm @ 0x1ce0940] Format ffm probed with size=2048 and score=101
[NULL @ 0x1ce23e0] Setting entry with key 'ar' to value '8000'
[NULL @ 0x1ce2c80] Setting entry with key 'video_size' to value '800x480'
Probing ffm score:101 size:2048
[ffm @ 0x1ce5a20] Format ffm probed with size=2048 and score=101
[NULL @ 0x1cea5a0] Setting entry with key 'ar' to value '8000'
[NULL @ 0x1ceb120] Setting entry with key 'video_size' to value '800x480'
Failed to parse interval end specification ''
Last message repeated 1 times
[rtp @ 0x1ce41a0] 0: write len=5087
[rtp @ 0x1ce41a0] RTCP: 60 d219fa5d1eae8 93ab2618
[rtp @ 0x1ce41a0] Sending NAL 1 of len 5083 M=1
[rtp @ 0x1ce41a0] NAL size 5083 > 1460
[rtp @ 0x1ce41a0] rtp_send_data size=1460
Last message repeated 2 times
[rtp @ 0x1ce41a0] rtp_send_data size=710
[rtp @ 0x1ce4aa0] 0: write len=1440
[rtp @ 0x1ce4aa0] RTCP: 0e d219fa5d27b70 68f261d0
[rtp @ 0x1ce41a0] 0: write len=5102
[rtp @ 0x1ce41a0] Sending NAL 1 of len 5098 M=1
[rtp @ 0x1ce41a0] NAL size 5098 > 1460
[rtp @ 0x1ce41a0] rtp_send_data size=1460
Last message repeated 2 times
[rtp @ 0x1ce41a0] rtp_send_data size=725
[rtp @ 0x1ce4aa0] 0: write len=1440
[rtp @ 0x1ce4aa0] rtp_send_data size=1444
[rtp @ 0x1ce41a0] 0: write len=5089
...
Floating point exception (core dumped)
}}}
The floating point exception happened after running the following command
in another console:
{{{
ffmpeg at ubuntu:~$ curl -s http://localhost:8090/status
ffmpeg at ubuntu:~$
}}}
{{{
ffmpeg at ubuntu:~/ffserver$ gdb /usr/bin/ffserver core
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.04) 7.11.1
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/bin/ffserver...Reading symbols from
/usr/lib/debug/.build-
id/9b/8aad9657cb1a33f0f9ed10c6069d8e44ca1960.debug...done.
done.
[New LWP 1402]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `ffserver -v 9 -loglevel 99 -f ffserver.conf'.
Program terminated with signal SIGFPE, Arithmetic exception.
#0 0x0000000000416bfb in snprintf (__fmt=0x41cfc8 "%dx%d, q=%d-%d,
fps=%d", __n=64, __s=0x7ffd4a7a4cd0 "")
at /usr/include/x86_64-linux-gnu/bits/stdio2.h:64
64 /usr/include/x86_64-linux-gnu/bits/stdio2.h: No such file or
directory.
(gdb) bt
#0 0x0000000000416bfb in snprintf (__fmt=0x41cfc8 "%dx%d, q=%d-%d,
fps=%d", __n=64, __s=0x7ffd4a7a4cd0 "")
at /usr/include/x86_64-linux-gnu/bits/stdio2.h:64
#1 print_stream_params (stream=0xda03e0, pb=0xda3da0) at ffserver.c:1781
#2 compute_status (c=0xdc5ec0) at ffserver.c:1969
#3 http_parse_request (c=c at entry=0xdc5ec0) at ffserver.c:1735
#4 0x0000000000408e64 in handle_connection (c=0xdc5ec0) at ffserver.c:900
#5 http_server () at ffserver.c:678
#6 main (argc=<optimized out>, argv=<optimized out>) at ffserver.c:3870
(gdb)
#0 0x0000000000416bfb in snprintf (__fmt=0x41cfc8 "%dx%d, q=%d-%d,
fps=%d", __n=64, __s=0x7ffd4a7a4cd0 "")
at /usr/include/x86_64-linux-gnu/bits/stdio2.h:64
#1 print_stream_params (stream=0xda03e0, pb=0xda3da0) at ffserver.c:1781
#2 compute_status (c=0xdc5ec0) at ffserver.c:1969
#3 http_parse_request (c=c at entry=0xdc5ec0) at ffserver.c:1735
#4 0x0000000000408e64 in handle_connection (c=0xdc5ec0) at ffserver.c:900
#5 http_server () at ffserver.c:678
#6 main (argc=<optimized out>, argv=<optimized out>) at ffserver.c:3870
}}}
This happens when the first feed (feed-kpp.ffm) can't be started due to
inaccessibility of 192.168.99.100:
{{{
ffmpeg at ubuntu:~/ffserver$ telnet 192.168.99.100 554
Trying 192.168.99.100...
telnet: Unable to connect to remote host: Connection refused
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/6151>
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