The "mgaapplet-upgrade-helper" program crashed. Drakbug-15.54.1 caught it.

upgrade from Mageia 2

SEGV
Glibc's trace:
4: /usr/lib/perl5/5.14.4/x86_64-linux-thread-multi/CORE/libperl.so(Perl_sighandler+0x1f0) [0x7fb02e6c6590]
5: /lib64/libpthread.so.0(+0xef70) [0x7fb02d92df70]
6: /lib64/libharfbuzz.so.0(hb_buffer_add_utf8+0x3d0) [0x7fb01d5f05b0]
7: /usr/lib64/pango/1.8.0/modules/pango-basic-fc.so(+0x1b54) [0x7fb01d87bb54]
8: /usr/lib/../lib64/libpango-1.0.so.0(pango_shape+0x4a) [0x7fb026e2129a]
9: /usr/lib/../lib64/libpango-1.0.so.0(+0xfa81) [0x7fb026e04a81]
10: /usr/lib/../lib64/libpango-1.0.so.0(+0xfd39) [0x7fb026e04d39]
11: /usr/lib/../lib64/libpango-1.0.so.0(+0x22707) [0x7fb026e17707]
12: /usr/lib/../lib64/libpango-1.0.so.0(+0x23556) [0x7fb026e18556]
13: /usr/lib/../lib64/libgtk-x11-2.0.so.0(+0x128b31) [0x7fb025df1b31]
14: /usr/lib/../lib64/libgtk-x11-2.0.so.0(+0x12a46d) [0x7fb025df346d]
15: /lib/../lib64/libgobject-2.0.so.0(g_cclosure_marshal_VOID__BOXEDv+0x8d) [0x7fb02a335fcd]
16: /lib/../lib64/libgobject-2.0.so.0(+0xfe3c) [0x7fb02a332e3c]
17: /lib/../lib64/libgobject-2.0.so.0(g_signal_emit_valist+0x421) [0x7fb02a34b711]
18: /lib/../lib64/libgobject-2.0.so.0(g_signal_emit_by_name+0x504) [0x7fb02a34c724]
19: /usr/lib/../lib64/libgtk-x11-2.0.so.0(+0x1a3503) [0x7fb025e6c503]

Perl's trace:
standalone::bug_handler() called from /usr/lib/libDrakX/standalone.pm:224
standalone::__ANON__() called from /usr/lib/libDrakX/mygtk2.pm:1212
(eval)() called from /usr/lib/libDrakX/mygtk2.pm:1212
mygtk2::MagicWindow::AUTOLOAD() called from /usr/lib/libDrakX/ugtk2.pm:772
ugtk2::show() called from /usr/lib/libDrakX/ugtk2.pm:765
ugtk2::main() called from /usr/sbin/mgaapplet-upgrade-helper:115
main::run_gurpmi() called from /usr/sbin/mgaapplet-upgrade-helper:436
main::upgrade() called from /usr/sbin/mgaapplet-upgrade-helper:75

Theme name: Adwaita
Kernel version = 3.4.52-desktop-1.mga2
Distribution=Mageia release 2 (Official) for x86_64
CPU=Intel(R) Core(TM)2 Duo CPU     U9400  @ 1.40GHz