#0  0xb7d1ad2b in IA__g_logv (log_domain=<value optimized out>, log_level=G_LOG_LEVEL_ERROR, format=0xb7d63960 "file %s: line %d (%s): should not be reached", 
#1  0xb7d1afa9 in IA__g_log (log_domain=0xb7ebe6aa "Pango", log_level=G_LOG_LEVEL_ERROR, format=0xb7d63960 "file %s: line %d (%s): should not be reached")
#2  0xb7d1b026 in IA__g_assert_warning (log_domain=0xb7ebe6aa "Pango", file=0xb7ebe778 "/build/buildd/pango1.0-1.17.5/pango/break.c", line=859, 
#3  0xb7e9fe32 in pango_default_break (
#4  0xb7ea0994 in pango_get_log_attrs (
#5  0x08055369 in ?? ()
#6  0xb5ed4c80 in ?? ()
#7  0x00001537 in ?? ()
#8  0x00000000 in ?? ()