Lilypond 2.5.8 crashes with any input

[Matthias Neeracher]

I'm getting a segmentation fault for any input file I process (e.g. 
simple.ly). This seems to be a very similar bug as I got in 2.5.7, 
ecept that the offending string is now at 0x0 instead of 0x22

Let me know if there is anything more I can do diagnostically. Due to 
all the inline code, it's kind of hard for me track this down further 
in a meaningful way.

Matthias

#0  0x90006e40 in strlen ()
#1  0x000fbf88 in Pango_font::pango_item_string_stencil(_PangoItem*, 
String, double) const (this=0x3a8f550, item=0x3aaab70, str=Cannot 
access memory at address 0x0
) at ../flower/include/string-data.icc:113
#2  0x000fc30c in Pango_font::text_stencil(String) const 
(this=0xbfffb8c0, str=Cannot access memory at address 0x0
) at ../flower/include/string-handle.icc:25
#3  0x001700f4 in Text_interface::interpret_string(scm_unused_struct*, 
scm_unused_struct*, scm_unused_struct*) (layout_smob=0x2a8400, 
props=0x3aaab70, markup=0x0) at ../flower/include/string-handle.icc:25
#4  0x001702dc in Text_interface::interpret_markup(scm_unused_struct*, 
scm_unused_struct*, scm_unused_struct*) (layout_smob=0x0, 
props=0x3944d5c, markup=0x3aaab80) at text-item.cc:49
#5  0x02abd7fc in scm_deval (x=0x2a121e8, env=0x39466c8) at eval.c:3009
#6  0x02abe888 in scm_dapply (proc=0x2a72600, arg1=0x1cec810, 
args=0xbfffbcb0) at eval.c:3655
#7  0x02ab8808 in scm_apply (proc=0x1cec810, arg1=0xbfffbcd8, 
args=0xbfffbcb0) at eval.c:3453
#8  0x00170590 in Text_interface::interpret_markup(scm_unused_struct*, 
scm_unused_struct*, scm_unused_struct*) (layout_smob=0x2b1a030, 
props=0x39466c8, markup=0x2a72600) at text-item.cc:57
#9  0x02abd7fc in scm_deval (x=0x2a06610, env=0x3946950) at eval.c:3009
#10 0x02abcd78 in scm_deval (x=0x2a06610, env=0x3946950) at eval.c:2817
#11 0x02abd438 in scm_deval (x=0x2a06610, env=0x3946950) at eval.c:2967
#12 0x02aba79c in scm_deval (x=0x2a06610, env=0x3946950) at eval.c:2017
#13 0x02abb204 in scm_deval (x=0x2a06610, env=0x3946950) at eval.c:2192
#14 0x02abe888 in scm_dapply (proc=0x2a72600, arg1=0x1cec810, 
args=0xbfffc010) at eval.c:3655
#15 0x02ab8808 in scm_apply (proc=0x1cec810, arg1=0xbfffc028, 
args=0xbfffc010) at eval.c:3453
#16 0x00170590 in Text_interface::interpret_markup(scm_unused_struct*, 
scm_unused_struct*, scm_unused_struct*) (layout_smob=0x2b1a030, 
props=0x3946950, markup=0x2a72600) at text-item.cc:57
#17 0x02abd7fc in scm_deval (x=0x39aa1c0, env=0x3940b30) at eval.c:3009
#18 0x02abb204 in scm_deval (x=0x39aa1c0, env=0x3940b30) at eval.c:2192
#19 0x02abb204 in scm_deval (x=0x39aa1c0, env=0x3940b30) at eval.c:2192
#20 0x02abb204 in scm_deval (x=0x39aa1c0, env=0x3940b30) at eval.c:2192
#21 0x02abb204 in scm_deval (x=0x39aa1c0, env=0x3940b30) at eval.c:2192
#22 0x02abb204 in scm_deval (x=0x39aa1c0, env=0x3940b30) at eval.c:2192
#23 0x02abe888 in scm_dapply (proc=0x2a72600, arg1=0x1cec810, 
args=0xbfffc7f0) at eval.c:3655
#24 0x02ab8808 in scm_apply (proc=0x1cec810, arg1=0xbfffc818, 
args=0xbfffc7f0) at eval.c:3453
#25 0x000ff690 in Paper_book::pages() (this=0x1cec810) at 
include/paper-book.hh:36
#26 0x000fdd4c in Paper_book::output(String) (this=0x2d9e120, 
outname={strh_ = {data = 0x3940b38}}) at paper-book.cc:83
#27 0x000a6148 in ly_parser_print_book(scm_unused_struct*, 
scm_unused_struct*) (parser_smob=0x2d9e120, book_smob=0x2a5b260) at 
lily-parser-scheme.cc:286
#28 0x02abd0f0 in scm_deval (x=0x2a5b260, env=0xbfffd0f0) at eval.c:2843
#29 0x00104378 in internal_ly_parse_scm(Parse_start*) (ps=0x2d9e120) at 
parse-scm.cc:49
#30 0x02af9ecc in scm_internal_catch (tag=0x3009400, body=0x1043d4 
<catch_protected_parse_body(void*)>, body_data=0xbfffd770, 
handler=0x1043d8 <parse_handler(void*, scm_unused_struct*, 
scm_unused_struct*)>, handler_data=0xbfffd770) at throw.c:205
#31 0x00104620 in ly_parse_scm(char const*, int*, Input, bool) 
(s=0xbfffd770 "\003\006Wm", n=0xbfffd890, i={start_ = 0x1ae8c80 "", 
end_ = 0x1 <Address 0x1 out of bounds>, source_file_ = 0x7fffffff}, 
safe=false) at parse-scm.cc:110
#32 0x001936c8 in Lily_lexer::yylex() (this=0x2d8d640) at lexer.ll:281
#33 0x0019c3c0 in yyparse(void*) (my_lily_parser=0x2d016e0) at 
parser.yy:227
#34 0x000a7910 in Lily_parser::parse_file(String, String, String) 
(this=0x2d016e0, init={strh_ = {data = 0x0}}, name={strh_ = {data = 
0x2d8cda0}}, out_name={strh_ = {data = 0x0}}) at lily-parser.cc:116
#35 0x000a3a3c in ly_parse_file(scm_unused_struct*) (name=0xfefefeff) 
at ../flower/include/string-handle.icc:25
#36 0x02abcbb4 in scm_deval (x=0xbfffe8e0, env=0x2d016e0) at eval.c:2736
#37 0x02abe888 in scm_dapply (proc=0xbfffe930, arg1=0xbfffe8f0, 
args=0x2171e0) at eval.c:3655
#38 0x02ab8808 in scm_apply (proc=0xbfffe8f0, arg1=0x2d8d090, 
args=0x2171e0) at eval.c:3453
#39 0x02af9ecc in scm_internal_catch (tag=0x2d8d090, body=0x2afa198 
<scm_body_thunk>, body_data=0xbffff280, handler=0x2afa1a0 
<scm_handle_by_proc>, handler_data=0xbffff2c0) at throw.c:205
#40 0x02afa4ec in scm_catch (key=0x1, thunk=0x0, handler=0x1ceec50) at 
throw.c:549
#41 0x02abd7fc in scm_deval (x=0x39d78e0, env=0x1cee340) at eval.c:3009
#42 0x02aba79c in scm_deval (x=0x39d78e0, env=0x1cee340) at eval.c:2017
#43 0x02aba79c in scm_deval (x=0x39d78e0, env=0x1cee340) at eval.c:2017
#44 0x02aba79c in scm_deval (x=0x39d78e0, env=0x1cee340) at eval.c:2017
#45 0x02abe888 in scm_dapply (proc=0x2e09890, arg1=0x1c08028, 
args=0xbffff2e0) at eval.c:3655
#46 0x02ab8808 in scm_apply (proc=0x1c08028, arg1=0xbffff2e8, 
args=0xbffff2e0) at eval.c:3453
#47 0x000c1fe8 in main_with_guile(void*, int, char**) () at main.cc:306
#48 0x02ad0c48 in invoke_main_func (body_data=0x1) at init.c:636
#49 0x02ad0bfc in scm_boot_guile_1 (base=0xfffffffc, 
closure=0xbffff2e0) at init.c:616
#50 0x02ad0938 in scm_boot_guile (argc=-4, argv=0x0, 
main_func=0xfefefeff, closure=0x80808080) at init.c:440
#51 0x000be878 in main (argc=30335808, argv=0x2b1a030) at main.cc:445