GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu1) 7.4-2012.04 Copyright (C) 2012 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 "i686-linux-gnu". For bug reporting instructions, please see: ... Reading symbols from /usr/games/glines...(no debugging symbols found)...done. (gdb) run Starting program: /usr/games/glines [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1". [New Thread 0xb7506b40 (LWP 10262)] [New Thread 0xb6bfeb40 (LWP 10263)] [New Thread 0xb61ffb40 (LWP 10264)] Program received signal SIGSEGV, Segmentation fault. 0x008c019a in cairo_pattern_create_for_surface () from /usr/lib/i386-linux-gnu/libcairo.so.2 (gdb) bt #0 0x008c019a in cairo_pattern_create_for_surface () from /usr/lib/i386-linux-gnu/libcairo.so.2 #1 0x08051016 in draw_preview () #2 0x08051352 in ?? () #3 0x00295022 in ?? () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #4 0x00aa4484 in g_closure_invoke () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #5 0x00ab60d9 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #6 0x00abdff5 in g_signal_emit_valist () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #7 0x00abe453 in g_signal_emit () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #8 0x003df33b in ?? () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #9 0x00215e29 in ?? () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #10 0x00aa73c5 in g_cclosure_marshal_VOID__BOXEDv () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #11 0x00aa2db7 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #12 0x00aa466d in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #13 0x00abda29 in g_signal_emit_valist () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #14 0x00abe453 in g_signal_emit () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #15 0x003efb78 in gtk_widget_size_allocate () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #16 0x001b002d in ?? () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #17 0x00aa73c5 in g_cclosure_marshal_VOID__BOXEDv () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #18 0x00aa2db7 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #19 0x00aa466d in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #20 0x00abda29 in g_signal_emit_valist () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #21 0x00abe453 in g_signal_emit () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #22 0x003efb78 in gtk_widget_size_allocate () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #23 0x08054ddc in ?? () #24 0x00aa73c5 in g_cclosure_marshal_VOID__BOXEDv () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #25 0x00aa2db7 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #26 0x00aa466d in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #27 0x00abda29 in g_signal_emit_valist () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #28 0x00abe453 in g_signal_emit () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #29 0x003efb78 in gtk_widget_size_allocate () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #30 0x001b002d in ?? () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #31 0x00aa73c5 in g_cclosure_marshal_VOID__BOXEDv () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #32 0x00aa2db7 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #33 0x00aa466d in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #34 0x00abda29 in g_signal_emit_valist () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #35 0x00abe453 in g_signal_emit () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #36 0x003efb78 in gtk_widget_size_allocate () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #37 0x001b002d in ?? () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #38 0x00aa73c5 in g_cclosure_marshal_VOID__BOXEDv () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #39 0x00aa2db7 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #40 0x00aa466d in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #41 0x00abda29 in g_signal_emit_valist () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #42 0x00abe453 in g_signal_emit () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #43 0x003efb78 in gtk_widget_size_allocate () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #44 0x003fb4f9 in ?? () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #45 0x00aa73c5 in g_cclosure_marshal_VOID__BOXEDv () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #46 0x00aa2db7 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #47 0x00aa4727 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #48 0x00abda29 in g_signal_emit_valist () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #49 0x00abe453 in g_signal_emit () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #50 0x003efb78 in gtk_widget_size_allocate () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #51 0x003f7084 in ?? () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #52 0x00aa61ec in g_cclosure_marshal_VOID__VOID () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #53 0x00aa32fd in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #54 0x00aa4484 in g_closure_invoke () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #55 0x00ab6535 in ?? () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #56 0x00abe2dc in g_signal_emit_valist () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #57 0x00abe453 in g_signal_emit () from /usr/lib/i386-linux-gnu/libgobject-2.0.so.0 #58 0x003ea3b4 in gtk_widget_show () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #59 0x001fbfb2 in ?? () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #60 0x003e8a2a in gtk_widget_show_all () from /usr/lib/i386-linux-gnu/libgtk-3.so.0 #61 0x0804f146 in main () (gdb) q A debugging session is active. Inferior 1 [process 10258] will be killed. Quit anyway? (y or n)