Sorry about that, had to install more dbgsym packages of libs gnome-panel was linking against. Is the following stack trace more useful? 0xffffe410 in __kernel_vsyscall () (gdb) bt #0 0xffffe410 in __kernel_vsyscall () #1 0xb748d5ab in poll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb7589839 in _XWaitForReadable (dpy=0x80e1298) at ../../src/XlibInt.c:509 #3 0xb7589c2f in _XRead (dpy=0x80e1298, data=0xbffc0c90 "�\031\016\b", size=32) at ../../src/XlibInt.c:1099 #4 0xb758a604 in _XReply (dpy=0x80e1298, rep=0xbffc0c90, extra=0, discard=1) at ../../src/XlibInt.c:1730 #5 0xb75845da in XSync (dpy=0x80e1298, discard=0) at ../../src/Sync.c:48 #6 0xb5ce3a1a in ?? () from /usr/lib/libwnck-1.so.22 #7 0x080e1298 in ?? () #8 0x00000000 in ?? () (gdb) c Continuing. Program received signal SIGINT, Interrupt. [Switching to Thread -1226774864 (LWP 14578)] hash_bytes_fnv (buffer=0xbffbf823 "?", len=32, hval=1495512538) at /build/buildd/pango1.0-1.18.3/pango/pangofc-fontmap.c:311 311 /build/buildd/pango1.0-1.18.3/pango/pangofc-fontmap.c: No such file or directory. in /build/buildd/pango1.0-1.18.3/pango/pangofc-fontmap.c (gdb) bt #0 hash_bytes_fnv (buffer=0xbffbf823 "?", len=32, hval=1495512538) at /build/buildd/pango1.0-1.18.3/pango/pangofc-fontmap.c:311 #1 0xb7191c5f in fontset_hash_key_hash (key=0xbffbf800) at /build/buildd/pango1.0-1.18.3/pango/pangofc-fontmap.c:346 #2 0xb76628eb in g_hash_table_lookup () from /usr/lib/libglib-2.0.so.0 #3 0xb7190d52 in pango_fc_font_map_load_fontset (fontmap=0x81164b8, context=0x8449b50, desc=0x86bfdc0, language=0x814bea0) at /build/buildd/pango1.0-1.18.3/pango/pangofc-fontmap.c:1073 #4 0xb787c5e0 in pango_font_map_load_fontset (fontmap=0x81164b8, context=0x8449b50, desc=0x86bfdc0, language=0x814bea0) at /build/buildd/pango1.0-1.18.3/pango/pango-fontmap.c:107 #5 0xb787a4c7 in itemize_state_process_run (state=0xbffbf970) at /build/buildd/pango1.0-1.18.3/pango/pango-context.c:1278 #6 0xb787a842 in pango_itemize_with_base_dir (context=0x8449b50, base_dir=PANGO_DIRECTION_LTR, text=0x832fb70 "vijayr@shakti: ~/wt/digicam/dpreview", start_index=0, length=36, attrs=0x9d81b10, cached_iter=0x9e03300) at /build/buildd/pango1.0-1.18.3/pango/pango-context.c:1427 #7 0xb788370e in pango_layout_check_lines (layout=0x8681e28) at /build/buildd/pango1.0-1.18.3/pango/pango-layout.c:3619 #8 0xb78848c7 in pango_layout_get_extents_internal (layout=0x8681e28, ink_rect=0x0, logical_rect=0xbffbfcbc, line_extents=0x0) at /build/buildd/pango1.0-1.18.3/pango/pango-layout.c:2311 ---Type to continue, or q to quit--- #9 0xb7aa2b14 in gtk_label_size_request (widget=0x8318e20, requisition=0x8318e3c) at /build/buildd/gtk+2.0-2.12.0/gtk/gtklabel.c:2190 #10 0xb7714279 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0 #11 0xb7705f89 in ?? () from /usr/lib/libgobject-2.0.so.0 #12 0x08102ab8 in ?? () #13 0x00000000 in ?? () (gdb) c Continuing. Program received signal SIGINT, Interrupt. 0xffffe410 in __kernel_vsyscall () (gdb) bt #0 0xffffe410 in __kernel_vsyscall () #1 0xb748d5ab in poll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb7589839 in _XWaitForReadable (dpy=0x80e1298) at ../../src/XlibInt.c:509 #3 0xb7589c2f in _XRead (dpy=0x80e1298, data=0xbffc2cf0 "8�o�\b@0\b(-��e�8�o�0UQ�", size=32) at ../../src/XlibInt.c:1099 #4 0xb758a604 in _XReply (dpy=0x80e1298, rep=0xbffc2cf0, extra=0, discard=1) at ../../src/XlibInt.c:1730 #5 0xb7585d04 in XTranslateCoordinates (dpy=0x80e1298, src_win=14680111, dest_win=93, src_x=0, src_y=0, dst_x=0xbffc2d54, dst_y=0xbffc2d50, child=0xbffc2d58) at ../../src/TrCoords.c:51 #6 0xb79302db in IA__gdk_window_get_origin (window=0x80ed200, x=0xbffc2d9c, y=0xbffc2d98) at /build/buildd/gtk+2.0-2.12.0/gdk/x11/gdkwindow-x11.c:3267 #7 0x0806bd4b in panel_widget_set_background_region (panel=0x8144800) at panel-widget.c:1317 #8 0x0806c19c in panel_widget_size_allocate (widget=0x8144800, allocation=0xbffc32dc) at panel-widget.c:1518 #9 0xb7714279 in g_cclosure_marshal_VOID__BOXED () from /usr/lib/libgobject-2.0.so.0 #10 0xb7705f89 in ?? () from /usr/lib/libgobject-2.0.so.0 #11 0x080d13b0 in ?? () #12 0x00000000 in ?? () (gdb) c Continuing. Program received signal SIGINT, Interrupt. 0xffffe410 in __kernel_vsyscall () (gdb) bt #0 0xffffe410 in __kernel_vsyscall () #1 0xb751a1d3 in __read_nocancel () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb7592b6e in _X11TransSocketRead (ciptr=0x80e0e38, buf=0xbffc0c90 "\034\224��Y\001\200\001W\001", size=32) at /usr/include/X11/Xtrans/Xtranssock.c:2151 #3 0xb759264f in _X11TransRead (ciptr=0x80e0e38, buf=0xbffc0c90 "\034\224��Y\001\200\001W\001", size=32) at /usr/include/X11/Xtrans/Xtrans.c:893 #4 0xb7589b79 in _XRead (dpy=0x80e1298, data=0xbffc0c90 "\034\224��Y\001\200\001W\001", size=32) at ../../src/XlibInt.c:1091 #5 0xb758a604 in _XReply (dpy=0x80e1298, rep=0xbffc0c90, extra=0, discard=1) at ../../src/XlibInt.c:1730 #6 0xb75845da in XSync (dpy=0x80e1298, discard=0) at ../../src/Sync.c:48 #7 0xb5ce3a1a in ?? () from /usr/lib/libwnck-1.so.22 #8 0x080e1298 in ?? () #9 0x00000000 in ?? () (gdb) c Continuing. Program received signal SIGINT, Interrupt. 0xffffe410 in __kernel_vsyscall () (gdb) bt #0 0xffffe410 in __kernel_vsyscall () #1 0xb751a153 in __write_nocancel () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb7592b2e in _X11TransSocketWrite (ciptr=0x80e0e38, buf=0x80e19d0 "\022", size=44) at /usr/include/X11/Xtrans/Xtranssock.c:2171 #3 0xb759267f in _X11TransWrite (ciptr=0x80e0e38, buf=0x80e19d0 "\022", size=44) at /usr/include/X11/Xtrans/Xtrans.c:900 #4 0xb758a4d7 in _XFlushInt (dpy=0x80e1298, cv=0x0) at ../../src/XlibInt.c:677 #5 0xb758a5ab in _XReply (dpy=0x80e1298, rep=0xbffc0c90, extra=0, discard=1) at ../../src/XlibInt.c:1710 #6 0xb75845da in XSync (dpy=0x80e1298, discard=0) at ../../src/Sync.c:48 #7 0xb5ce3a1a in ?? () from /usr/lib/libwnck-1.so.22 #8 0x080e1298 in ?? () #9 0x00000000 in ?? () (gdb) c Continuing. Program received signal SIGINT, Interrupt. 0xb766d425 in ?? () from /usr/lib/libglib-2.0.so.0 (gdb) bt #0 0xb766d425 in ?? () from /usr/lib/libglib-2.0.so.0 #1 0x080ef4c8 in ?? () #2 0xb7515530 in ?? () from /lib/tls/i686/cmov/libpthread.so.0 #3 0x080ef4c8 in ?? () #4 0xbffc0c98 in ?? () #5 0xb767119a in g_source_attach () from /usr/lib/libglib-2.0.so.0 Backtrace stopped: frame did not save the PC (gdb) k Kill the program being debugged? (y or n) y (gdb) q