Comment 2 for bug 111564

Retrace done.

Extract from retraced stacktrace:
...
#3 <signal handler called>
#4 gtk_style_realize (style=0x9385f08, colormap=0x0)
#5 IA__gtk_style_attach (style=0x9385808, window=0x9088800)
#6 gtk_widget_set_style_internal (widget=0x91c8020,
#7 reset_rc_styles_recurse (widget=0x91c8020, data=0x0)
#8 moz_container_forall (container=0x82ce528,
#9 IA__gtk_container_forall (container=0x82ce528,
#10 reset_rc_styles_recurse (widget=0x82ce528, data=0x0)
#11 gtk_bin_forall (container=0x815ff38, include_internals=1,
#12 IA__gtk_container_forall (container=0x815ff38,
#3 nsSocketTransportService::Poll (this=0x80df788,
#4 nsSocketTransportService::Run (this=0x80df788)
#5 nsThread::Main (arg=0x80d3728) at nsThread.cpp:118
#6 _pt_root (arg=0x80d37a8) at ptthread.c:220
#7 start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8 clone () from /lib/tls/i686/cmov/libc.so.6
#0 __kernel_vsyscall ()
...

Tagging as mt-confirm for further processing