% gdb --args mplayer movie.mp4 GNU gdb (GDB) 7.8 Copyright (C) 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later 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-unknown-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from mplayer...(no debugging symbols found)...done. (gdb) start Function "main" not defined. Make breakpoint pending on future shared library load? (y or [n]) Starting program: /usr/bin/mplayer movie.mp4 Got object file from memory but can't read symbols: File truncated. warning: Could not load shared library symbols for linux-vdso.so.1. Do you need "set solib-search-path" or "set sysroot"? [Thread debugging using libthread_db enabled] Using host libthread_db library "/usr/lib/libthread_db.so.1". MPlayer SVN-r37224 (C) 2000-2014 MPlayer Team 210 audio & 441 video codecs Loading extension-related profile 'vo.vdpau' Playing movie.mp4. libavformat version 55.33.100 (internal) libavformat file format detected. [lavf] stream 0: video (h264), -vid 0 [lavf] stream 1: audio (aac), -aid 0, -alang und VIDEO: [H264] 1920x800 24bpp 23.976 fps 1769.1 kbps (216.0 kbyte/s) Clip info: major_brand: isom minor_version: 1 compatible_brands: isomavc1 creation_time: 2012-01-27 18:12:16 Load subtitles in ./ SUB: Added subtitle file (1): ./movie.srt Could not find a UTF-8 locale, character keys beyond Latin-1 will not be handled. [New Thread 0x7fffdc6c2700 (LWP 3541)] ========================================================================== Forced video codec: ffh264vdpau Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family libavcodec version 55.52.102 (internal) Selected video codec: [ffh264vdpau] vfm: ffmpeg (FFmpeg H.264 (VDPAU)) ========================================================================== ========================================================================== Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders AUDIO: 48000 Hz, 2 ch, floatle, 64.0 kbit/2.08% (ratio: 8000->384000) Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio)) ========================================================================== [AO OSS] audio_setup: Can't open audio device /dev/dsp: No such file or directory AO: [alsa] 48000Hz 2ch floatle (4 bytes per sample) Starting playback... Movie-Aspect is 2.40:1 - prescaling to correct movie aspect. VO: [vdpau] 1920x800 => 1920x800 H.264 VDPAU acceleration Movie-Aspect is 2.40:1 - prescaling to correct movie aspect. VO: [vdpau] 1920x800 => 1920x800 H.264 VDPAU acceleration Program received signal SIGSEGV, Segmentation fault. 0x00007fffef25f85e in __memcpy_sse2_unaligned () from /usr/lib/libc.so.6 (gdb) bt #0 0x00007fffef25f85e in __memcpy_sse2_unaligned () from /usr/lib/libc.so.6 #1 0x00007fffdc9f8e26 in ?? () from /usr/lib/vdpau/libvdpau_r600.so.1 #2 0x00007fffdc9fb0e2 in ?? () from /usr/lib/vdpau/libvdpau_r600.so.1 #3 0x00007fffdc9310ec in ?? () from /usr/lib/vdpau/libvdpau_r600.so.1 #4 0x00007fffdc9dbc56 in ?? () from /usr/lib/vdpau/libvdpau_r600.so.1 #5 0x00007fffdc9c8d8a in ?? () from /usr/lib/vdpau/libvdpau_r600.so.1 #6 0x00007fffdc9c5fbf in ?? () from /usr/lib/vdpau/libvdpau_r600.so.1 #7 0x00007fffdc9080e9 in ?? () from /usr/lib/vdpau/libvdpau_r600.so.1 #8 0x00005555556d02e4 in ?? () #9 0x00005555556d1498 in ?? () #10 0x00005555557cd661 in ?? () #11 0x0000555555bf48c4 in ?? () #12 0x00005555559bd204 in ?? () #13 0x00005555559d64db in ?? () #14 0x0000555555bc0f06 in ?? () #15 0x00005555557ce1dd in ?? () #16 0x000055555571bed6 in ?? () #17 0x000055555569c0bc in ?? () #18 0x000055555568f28f in ?? () #19 0x00007fffef1ef040 in __libc_start_main () from /usr/lib/libc.so.6 #20 0x000055555569159d in ?? () (gdb) quit A debugging session is active. Inferior 1 [process 3537] will be killed. Quit anyway? (y or n) y