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$ gdb --args pd -nrt -verbose -stderr
GNU gdb (Ubuntu 7.7-0ubuntu3.1) 7.7
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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and "show warranty" for details.
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Type "show configuration" for configuration details.
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Reading symbols from pd...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/local/bin/pd -nrt -verbose -stderr
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
input channels = 2, output channels = 2
Pd-0.46.0 ("test1") compiled 13:01:01 Aug 16 2014
port 5400
TCL_LIBRARY="/usr/local/lib/pd/lib/tcl/library" TK_LIBRARY="/usr/local/lib/pd/lib/tk/library"   wish "/usr/local/lib/pd/tcl//pd-gui.tcl" 5400
Waiting for connection request... 
... connected
opened 0 MIDI input device(s) and 0 MIDI output device(s).
tried ./iem_tab.l_ia64 and failed
tried /home/jack/Gem/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/moocow/pdstring/src/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/zexy/src/.libs/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/iem/iemmatrix/src/iem_tab.l_ia64 and failed
tried /home/jack/gridflow/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/mrpeach/osc/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/iem/iemnet/iem_tab.l_ia64 and failed
tried /home/jack/Documents/PureData/PDabstractions/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/mrpeach/binfile/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/mapping/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/pmpd/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/iem/iem_tab/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/abstractions/footils/list-abs/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/boids/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/ggee/control/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/hcs/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/ggee/filters/iem_tab.l_ia64 and failed
tried /home/jack/Gem/extra/pix_fiducialtrack/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/zexy/abs/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/share_mem/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/moocow/pdstring/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/iem/comport/comport/iem_tab.l_ia64 and failed
tried /home/jack/pdgst/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/august/readanysf~/iem_tab.l_ia64 and failed
tried /home/jack/gridflow/abstractions/iem_tab.l_ia64 and failed
tried /home/jack/gridflow/deprecated/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/loaders/pdlua/src/iem_tab.l_ia64 and failed
tried /home/jack/pure-data/externals/moocow/readdir/src/iem_tab.l_ia64 and failed
tried /home/jack/pd-externals/iem_tab.l_ia64 and failed
tried /usr/local/lib/pd-externals/iem_tab.l_ia64 and failed
tried /usr/local/lib/pd/extra/iem_tab.l_ia64 and failed
tried ./iem_tab.pd_linux and failed
tried /home/jack/Gem/iem_tab.pd_linux and failed
tried /home/jack/pure-data/externals/moocow/pdstring/src/iem_tab.pd_linux and failed
tried /home/jack/pure-data/externals/zexy/src/.libs/iem_tab.pd_linux and failed
tried /home/jack/pure-data/externals/iem/iemmatrix/src/iem_tab.pd_linux and failed
tried /home/jack/gridflow/iem_tab.pd_linux and failed
tried /home/jack/pure-data/externals/mrpeach/osc/iem_tab.pd_linux and failed
tried /home/jack/pure-data/externals/iem/iemnet/iem_tab.pd_linux and failed
tried /home/jack/Documents/PureData/PDabstractions/iem_tab.pd_linux and failed
tried /home/jack/pure-data/externals/mrpeach/binfile/iem_tab.pd_linux and failed
tried /home/jack/pure-data/externals/mapping/iem_tab.pd_linux and failed
tried /home/jack/pure-data/externals/pmpd/iem_tab.pd_linux and failed
tried /home/jack/pure-data/externals/iem/iem_tab/iem_tab.pd_linux and succeeded
iem_tab (R-1.20) library loaded!   (c) Thomas Musil 11.2011
   musil@iem.at iem KUG Graz Austria
tried ./Gem.l_ia64 and failed
tried /home/jack/Gem/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/moocow/pdstring/src/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/zexy/src/.libs/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/iem/iemmatrix/src/Gem.l_ia64 and failed
tried /home/jack/gridflow/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/mrpeach/osc/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/iem/iemnet/Gem.l_ia64 and failed
tried /home/jack/Documents/PureData/PDabstractions/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/mrpeach/binfile/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/mapping/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/pmpd/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/iem/iem_tab/Gem.l_ia64 and failed
tried /home/jack/pure-data/abstractions/footils/list-abs/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/boids/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/ggee/control/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/hcs/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/ggee/filters/Gem.l_ia64 and failed
tried /home/jack/Gem/extra/pix_fiducialtrack/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/zexy/abs/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/share_mem/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/moocow/pdstring/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/iem/comport/comport/Gem.l_ia64 and failed
tried /home/jack/pdgst/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/august/readanysf~/Gem.l_ia64 and failed
tried /home/jack/gridflow/abstractions/Gem.l_ia64 and failed
tried /home/jack/gridflow/deprecated/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/loaders/pdlua/src/Gem.l_ia64 and failed
tried /home/jack/pure-data/externals/moocow/readdir/src/Gem.l_ia64 and failed
tried /home/jack/pd-externals/Gem.l_ia64 and failed
tried /usr/local/lib/pd-externals/Gem.l_ia64 and failed
tried /usr/local/lib/pd/extra/Gem.l_ia64 and failed
tried ./Gem.pd_linux and failed
tried /home/jack/Gem/Gem.pd_linux and succeeded
GEM: Graphics Environment for Multimedia
verbose(2): GEM: ver: 0.93.git f4b55e5
verbose(2): GEM: compiled: Aug 22 2014
verbose(2): GEM: maintained by IOhannes m zmoelnig
verbose(2): GEM: Authors :	Mark Danks (original version)
verbose(2): GEM:		Chris Clepper
verbose(2): GEM:		Cyrille Henry
verbose(2): GEM:		IOhannes m zmoelnig
verbose(2): GEM: with help by Guenter Geiger, Daniel Heckenberg, James Tittle, Hans-Christoph Steiner, et al.
verbose(2): GEM: found a bug? miss a feature? please report it:
verbose(2): GEM: 	homepage http://gem.iem.at/
verbose(2): GEM: 	bug-tracker http://sourceforge.net/projects/pd-gem/
verbose(2): GEM: 	mailing-list http://lists.puredata.info/listinfo/gem-dev/
open: /etc/pd/gem.conf: No such file or directory
open: /home/jack/.config/pure-data/gem.conf: No such file or directory
open: ./gem.conf: No such file or directory
tried ./Gem-meta.pd and failed
tried /home/jack/Gem/Gem-meta.pd and succeeded
verbose(2): GEM: compiled for MMX/SSE2 architecture
verbose(2): GEM: using SSE2 optimization
verbose(2): GEM: detected 8 CPUs
load plugins 'film' in '/home/jack/Gem/'
pattern : /home/jack/Gem/gem_film*.so
dylib loading file '/home/jack/Gem/gem_filmGMERLIN.so'!
dylib loading file '/home/jack/Gem/gem_filmMPEG3.so'!
dylib loading file '/home/jack/Gem/gem_filmQT4L.so'!
load plugins 'image' in '/home/jack/Gem/'
pattern : /home/jack/Gem/gem_image*.so
dylib loading file '/home/jack/Gem/gem_imageJPEG.so'!
dylib loading file '/home/jack/Gem/gem_imageMAGICK.so'!
dylib loading file '/home/jack/Gem/gem_imageSGI.so'!
dylib loading file '/home/jack/Gem/gem_imageTIFF.so'!
GEM: image loading support: magick SGI jpeg tiff
not reloading 'image' plugins (already 4 loaded)
load plugins 'image' in '/home/jack/Gem/'
pattern : /home/jack/Gem/gem_image*.so
dylib loading file '/home/jack/Gem/gem_imageJPEG.so'!
dylib loading file '/home/jack/Gem/gem_imageMAGICK.so'!
dylib loading file '/home/jack/Gem/gem_imageSGI.so'!
dylib loading file '/home/jack/Gem/gem_imageTIFF.so'!
GEM: image saving support: SGI jpeg magick tiff
load plugins 'model' in '/home/jack/Gem/'
pattern : /home/jack/Gem/gem_model*.so
dylib loading file '/home/jack/Gem/gem_modelOBJ.so'!
library loading returned: dlerror '/home/jack/Gem/gem_modelOBJ.so: undefined symbol: __GLEW_VERSION_1_1'
load plugins 'record' in '/home/jack/Gem/'
pattern : /home/jack/Gem/gem_record*.so
dylib loading file '/home/jack/Gem/gem_recordQT4L.so'!
dylib loading file '/home/jack/Gem/gem_recordV4L.so'!
dylib loading file '/home/jack/Gem/gem_recordV4L2.so'!
verbose(4): QT4L: default codec is: 'dv'
load plugins 'video' in '/home/jack/Gem/'
pattern : /home/jack/Gem/gem_video*.so
dylib loading file '/home/jack/Gem/gem_videoDC1394.so'!
dylib loading file '/home/jack/Gem/gem_videoV4L.so'!
dylib loading file '/home/jack/Gem/gem_videoV4L2.so'!
dylib loading file '/home/jack/Gem/gem_videoVLC.so'!

Program received signal SIGSEGV, Segmentation fault.
__strcmp_ssse3 () at ../sysdeps/x86_64/multiarch/../strcmp.S:209
209	../sysdeps/x86_64/multiarch/../strcmp.S: Aucun fichier ou dossier de ce type.
(gdb) bt
#0  __strcmp_ssse3 () at ../sysdeps/x86_64/multiarch/../strcmp.S:209
#1  0x00007fffe6eaffc9 in g_str_equal () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fffe6eaf5f0 in g_hash_table_lookup () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fffe6ecf3c0 in g_quark_from_static_string () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fffe0df34ac in ?? () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#5  0x00007ffff7dea13a in call_init (l=<optimized out>, argc=argc@entry=4, argv=argv@entry=0x7fffffffdf98, env=env@entry=0x7fffffffdfc0) at dl-init.c:78
#6  0x00007ffff7dea223 in call_init (env=<optimized out>, argv=<optimized out>, argc=<optimized out>, l=<optimized out>) at dl-init.c:36
#7  _dl_init (main_map=main_map@entry=0xbe7dd0, argc=4, argv=0x7fffffffdf98, env=0x7fffffffdfc0) at dl-init.c:126
#8  0x00007ffff7deec70 in dl_open_worker (a=a@entry=0x7fffffffc198) at dl-open.c:577
#9  0x00007ffff7de9ff4 in _dl_catch_error (objname=objname@entry=0x7fffffffc188, errstring=errstring@entry=0x7fffffffc190, mallocedp=mallocedp@entry=0x7fffffffc180, 
    operate=operate@entry=0x7ffff7dee9a0 <dl_open_worker>, args=args@entry=0x7fffffffc198) at dl-error.c:187
#10 0x00007ffff7dee3bb in _dl_open (file=0xbcaa50 "/usr/lib/vlc/plugins/gui/libqt4_plugin.so", mode=-2147483647, caller_dlopen=<optimized out>, nsid=-2, argc=4, argv=0x7fffffffdf98, env=0x7fffffffdfc0)
    at dl-open.c:661
#11 0x00007ffff719402b in dlopen_doit (a=a@entry=0x7fffffffc3b0) at dlopen.c:66
#12 0x00007ffff7de9ff4 in _dl_catch_error (objname=0x761610, errstring=0x761618, mallocedp=0x761608, operate=0x7ffff7193fd0 <dlopen_doit>, args=0x7fffffffc3b0) at dl-error.c:187
#13 0x00007ffff719462d in _dlerror_run (operate=operate@entry=0x7ffff7193fd0 <dlopen_doit>, args=args@entry=0x7fffffffc3b0) at dlerror.c:163
#14 0x00007ffff71940c1 in __dlopen (file=<optimized out>, mode=<optimized out>) at dlopen.c:87
#15 0x00007fffe45fde9f in ?? () from /usr/lib/libvlccore.so.7
#16 0x00007fffe45e762d in ?? () from /usr/lib/libvlccore.so.7
#17 0x00007fffe45e7927 in ?? () from /usr/lib/libvlccore.so.7
#18 0x00007fffe45e7b99 in ?? () from /usr/lib/libvlccore.so.7
#19 0x00007fffe45e7e04 in ?? () from /usr/lib/libvlccore.so.7
#20 0x00007fffe45e8357 in ?? () from /usr/lib/libvlccore.so.7
#21 0x00007fffe457fd1d in libvlc_InternalInit () from /usr/lib/libvlccore.so.7
#22 0x00007fffe4857b83 in libvlc_new () from /usr/lib/libvlc.so.5
#23 0x00007fffe4a711ed in gem::plugins::videoVLC::videoVLC (this=0x841060) at videoVLC.cpp:62
#24 0x00007fffe4a712db in gem::PluginFactoryRegistrar::allocator<gem::plugins::videoVLC, gem::plugins::video> () at ../../src/plugins/PluginFactoryTimple.h:134
#25 0x00007ffff36b5fef in doGetInstance (id=..., this=<optimized out>) at ../../src/plugins/PluginFactoryTimple.h:70
#26 getInstance (id=...) at ../../src/plugins/PluginFactoryTimple.h:96
#27 addPlugin (ID=..., available=<error reading variable: access outside bounds of object referenced via synthetic pointer>, this=0xaf8980) at video.cpp:81
#28 gem::plugins::video::getInstance () at video.cpp:112
#29 0x00007ffff3679f55 in gem::plugins::init () at PluginFactory.cpp:175
#30 0x000000000048911c in sys_do_load_lib ()
#31 0x0000000000489498 in sys_load_lib ()
#32 0x00000000004817d3 in glob_initfromgui ()
#33 0x00000000004702b8 in pd_typedmess ()
#34 0x0000000000479c1c in binbuf_eval ()
#35 0x00000000004845ec in socketreceiver_read ()
#36 0x000000000048395d in sys_domicrosleep.constprop ()
#37 0x0000000000480290 in m_mainloop ()
#38 0x00007ffff6deeec5 in __libc_start_main (main=0x412560 <main>, argc=4, argv=0x7fffffffdf98, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffdf88) at libc-start.c:287
#39 0x000000000041258e in _start ()