crash (SIGSEGV) with some fonts

I posted this error also on Debian BTS
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=349515
(for the case it is debian specific bug)

When I add some text to an image (even to the empty
one)
and want to change the font(I click the "A" button in
the toolbar).
When I select font Times or Helvetica or Lucida (or
some others),
the following dialog appears:

Inkscape encountered an internal error and will close
now.
Automatic backups of unsaved documents were done to the
following locations:
        New document 1.2006_01_23_15_19_46.0

It crashes also when opening an SVG file with a text in
some of these fonts.

Some other fonts work (Bitstream Vera, Free*, Nimbus)

Here there is a backtrace of the core when opening a
file with the Helvetica font:
#0 0x00000000 in ?? ()
#1 0x08139667 in inkscape_get_repr ()
#2 <signal handler called>
#3 0x0830035a in font_instance::SelectUnicodeCharmap
()
#4 0x082ff0bb in font_factory::Face ()
#5 0x082ff150 in font_factory::Face ()
#6 0x082ff4b2 in font_factory::Face ()
#7 0x0830d442 in
Inkscape::Text::Layout::InputStreamTextSource::
styleGetFontInstance ()
#8 0x083084a8 in
Inkscape::Text::Layout::Calculator::
_buildPangoItemizationForPara ()
#9 0x083091aa in Inkscape::Text::Layout::Calculator::
calculate ()
#10 0x08309928 in Inkscape::Text::Layout::calculateFlow
()
#11 0x0817bad8 in SPText::rebuildLayout ()
#12 0x0817bf03 in SPText::rebuildLayout ()
#13 0x08163db0 in SPObject::updateDisplay ()
#14 0x081579fe in SPGroup::setLayerDisplayMode ()
#15 0x08163db0 in SPObject::updateDisplay ()
#16 0x081579fe in SPGroup::setLayerDisplayMode ()
#17 0x08171bb3 in sp_root_get_type ()
#18 0x08163db0 in SPObject::updateDisplay ()
#19 0x08131841 in sp_document_ensure_up_to_date ()
#20 0x081b55d6 in SPDesktop::init ()
#21 0x0828edc8 in sp_desktop_widget_new ()
#22 0x081343e6 in sp_file_open ()
#23 0x0812da12 in sp_main_gui ()
#24 0x081fe265 in Inkscape::NSApplication::Application
::run ()
#25 0x0812d220 in main ()

and here the backtrace when having opened a new
document
and selecting "Times" in the text and fonts dialog:

#0 0x00000000 in ?? ()
#1 0x08139667 in inkscape_get_repr ()
#2 <signal handler called>
#3 0x0830035a in font_instance::SelectUnicodeCharmap
()
#4 0x082ff0bb in font_factory::Face ()
#5 0x082ff150 in font_factory::Face ()
#6 0x082ff510 in font_factory::FaceFromDescr ()
#7 0x08290e01 in sp_font_selector_get_type ()
#8 0xb7a39876 in _gtk_marshal_VOID__INT_INT_BOXED ()
from /usr/lib/libgtk-x11-2.0.so.0
#9 0xb737c839 in g_closure_invoke () from /usr/lib/
libgobject-2.0.so.0
#10 0xb738c0ea in g_signal_stop_emission () from /usr/
lib/libgobject-2.0.so.0
#11 0xb738d970 in g_signal_emit_valist () from /usr/
lib/libgobject-2.0.so.0
#12 0xb7a84518 in gtk_signal_emit () from /usr/lib/
libgtk-x11-2.0.so.0
#13 0xb79853a6 in gtk_clist_select_row () from /usr/
lib/libgtk-x11-2.0.so.0
#14 0x08290caa in sp_font_selector_get_type ()
#15 0xb7a39876 in _gtk_marshal_VOID__INT_INT_BOXED ()
from /usr/lib/libgtk-x11-2.0.so.0
#16 0xb737c839 in g_closure_invoke () from /usr/lib/
libgobject-2.0.so.0
#17 0xb738c0ea in g_signal_stop_emission () from /usr/
lib/libgobject-2.0.so.0
#18 0xb738d970 in g_signal_emit_valist () from /usr/
lib/libgobject-2.0.so.0
#19 0xb7a84518 in gtk_signal_emit () from /usr/lib/
libgtk-x11-2.0.so.0
#20 0xb79869ac in gtk_clist_undo_selection ()
from /usr/lib/libgtk-x11-2.0.so.0
#21 0xb798a91a in gtk_clist_set_selectable ()
from /usr/lib/libgtk-x11-2.0.so.0
#22 0xb7a37960 in _gtk_marshal_BOOLEAN__BOXED ()
from /usr/lib/libgtk-x11-2.0.so.0
#23 0xb737c179 in g_cclosure_new_swap () from /usr/lib/
libgobject-2.0.so.0
#24 0xb737c839 in g_closure_invoke () from /usr/lib/
libgobject-2.0.so.0
#25 0xb738c7f5 in g_signal_stop_emission () from /usr/
lib/libgobject-2.0.so.0
#26 0xb738d6de in g_signal_emit_valist () from /usr/
lib/libgobject-2.0.so.0
#27 0xb738dcd9 in g_signal_emit () from /usr/lib/
libgobject-2.0.so.0
#28 0xb7b291c4 in gtk_widget_activate () from /usr/lib/
libgtk-x11-2.0.so.0
#29 0xb7a35d8d in gtk_propagate_event () from /usr/lib/
libgtk-x11-2.0.so.0
#30 0xb7a36203 in gtk_main_do_event () from /usr/lib/
libgtk-x11-2.0.so.0
#31 0xb78c917a in _gdk_events_queue () from /usr/lib/
libgdk-x11-2.0.so.0
#32 0xb730fb8c in g_main_context_dispatch () from /usr/
lib/libglib-2.0.so.0
#33 0xb7312f6b in g_main_context_check () from /usr/
lib/libglib-2.0.so.0
#34 0xb73132c7 in g_main_loop_run () from /usr/lib/
libglib-2.0.so.0
#35 0xb7a353a1 in gtk_main () from /usr/lib/libgtk-x11-
2.0.so.0
#36 0xb7e66626 in Gtk::Main::run_impl () from /usr/lib/
libgtkmm-2.4.so.1
#37 0xb7e664d1 in Gtk::Main::run () from /usr/lib/
libgtkmm-2.4.so.1
#38 0x0812d998 in sp_main_gui ()
#39 0x081fe265 in Inkscape::NSApplication::Application
::run ()
#40 0x0812d220 in main ()