~$ gdb lilypond-git/build/out/bin/lilypond
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Reading symbols from lilypond-git/build/out/bin/lilypond...done.
(gdb) run lilypondH/Test/forum/bezier/metaspline-tests-01.ly 
Starting program: /home/hermann/lilypond-git/build/out/bin/lilypond lilypondH/Test/forum/bezier/metaspline-tests-01.ly
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
GNU LilyPond 2.21.0
Processing `lilypondH/Test/forum/bezier/metaspline-tests-01.ly'
Parsing...
Interpreting music...
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 1 page...
Drawing systems...*** stack smashing detected ***: <unknown> terminated

Program received signal SIGABRT, Aborted.
__GI_raise (address@hidden) at ../sysdeps/unix/sysv/linux/raise.c:51
51	../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0  0x00007ffff5d02e97 in __GI_raise (address@hidden)
    at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007ffff5d04801 in __GI_abort () at abort.c:79
#2  0x00007ffff5d4d897 in __libc_message (address@hidden, address@hidden "*** %s ***: %s terminated\n")
    at ../sysdeps/posix/libc_fatal.c:181
#3  0x00007ffff5df8cd1 in __GI___fortify_fail_abort (address@hidden, address@hidden "stack smashing detected")
    at fortify_fail.c:33
#4  0x00007ffff5df8c92 in __stack_chk_fail () at stack_chk_fail.c:29
#5  0x00005555555d6a7b in Slur::print(scm_unused_struct*) (smob=<optimized out>) at /home/hermann/lilypond-git/lily/slur.cc:190
#6  0x00007ffff7b21762 in scm_dapply (proc=0x7ffff3b5b6c0, arg1=0x0, args=0x404) at eval.c:4895
#7  0x0000555555873dd8 in Grob::try_callback_on_alist(scm_unused_struct**, scm_unused_struct*, scm_unused_struct*) (proc=0x7ffff3b5b6c0, sym=0x7ffff3298a60, alist=0x5555560ad7b0, this=0x5555560ad720)
    at /home/hermann/lilypond-git/lily/grob-property.cc:232
#8  0x0000555555873dd8 in Grob::internal_get_property(scm_unused_struct*) const (sym=<optimized out>, this=<optimized out>)
    at /home/hermann/lilypond-git/lily/grob-property.cc:184
#9  0x0000555555873dd8 in Grob::internal_get_maybe_pure_property(scm_unused_struct*, bool, int, int) const (this=<optimized out>, sym=<optimized out>, pure=<opt---Type <return> to continue, or q <return> to quit--- 
imized out>, start=<optimized out>, end=<optimized out>)
    at /home/hermann/lilypond-git/lily/grob-property.cc:212
#10 0x0000555555632ebb in Grob::get_stencil() const (this=0x5555560ad720)
    at /home/hermann/lilypond-git/lily/grob.cc:130
#11 0x00005555555d27fe in Slur::height(scm_unused_struct*) (smob=<optimized out>) at /home/hermann/lilypond-git/lily/slur.cc:139
#12 0x00007ffff7b21762 in scm_dapply (proc=0x7ffff3b5aad0, arg1=0x7fffeb6e9f80, args=0x404) at eval.c:4895
#13 0x0000555555873dd8 in Grob::try_callback_on_alist(scm_unused_struct**, scm_unused_struct*, scm_unused_struct*) (proc=0x7ffff3b5aad0, sym=0x7ffff32984a0, alist=0x5555560ad7b0, this=0x5555560ad720)
    at /home/hermann/lilypond-git/lily/grob-property.cc:232
#14 0x0000555555873dd8 in Grob::internal_get_property(scm_unused_struct*) const (sym=<optimized out>, this=<optimized out>)
    at /home/hermann/lilypond-git/lily/grob-property.cc:184
#15 0x0000555555873dd8 in Grob::internal_get_maybe_pure_property(scm_unused_struct*, bool, int, int) const (this=<optimized out>, sym=<optimized out>, pure=<optimized out>, start=<optimized out>, end=<optimized out>)
    at /home/hermann/lilypond-git/lily/grob-property.cc:212
#16 0x0000555555635dce in Grob::extent(Grob*, Axis) const (address@hidden, address@hidden, address@hidden)
    at /home/hermann/lilypond-git/lily/grob.cc:467
#17 0x00005555558fa09c in Axis_group_interface::relative_maybe_bound_group_exten---Type <return> to continue, or q <return> to quit---
t(std::vector<Grob*, std::allocator<Grob*> > const&, Grob*, Axis, bool) (elts=std::vector of length 28, capacity 32 = {...}, address@hidden, address@hidden, address@hidden)
    at /home/hermann/lilypond-git/lily/axis-group-interface.cc:106
#18 0x00005555558fa345 in Axis_group_interface::relative_group_extent(std::vector<Grob*, std::allocator<Grob*> > const&, Grob*, Axis) (a=Y_AXIS, common=0x5555562321e0, elts=std::vector of length 28, capacity 32 = {...})
    at /home/hermann/lilypond-git/lily/axis-group-interface.cc:91
#19 0x00005555558fa345 in Axis_group_interface::generic_group_extent(Grob*, Axis) (address@hidden, address@hidden)
    at /home/hermann/lilypond-git/lily/axis-group-interface.cc:453
#20 0x00005555555c1031 in Hara_kiri_group_spanner::y_extent(scm_unused_struct*) (smob=<optimized out>)
    at /home/hermann/lilypond-git/lily/hara-kiri-group-spanner.cc:35
#21 0x00007ffff7b21762 in scm_dapply (proc=0x7ffff3b4f660, arg1=0x7fffebd5a080, args=0x404) at eval.c:4895
#22 0x0000555555873dd8 in Grob::try_callback_on_alist(scm_unused_struct**, scm_unused_struct*, scm_unused_struct*) (proc=0x7ffff3b4f660, sym=0x7ffff32984a0, alist=0x555556232270, this=0x5555562321e0)
    at /home/hermann/lilypond-git/lily/grob-property.cc:232
#23 0x0000555555873dd8 in Grob::internal_get_property(scm_unused_struct*) const (sym=<optimized out>, this=<optimized out>)
    at /home/hermann/lilypond-git/lily/grob-property.cc:184
---Type <return> to continue, or q <return> to quit---
#24 0x0000555555873dd8 in Grob::internal_get_maybe_pure_property(scm_unused_struct*, bool, int, int) const (this=<optimized out>, sym=<optimized out>, pure=<optimized out>, start=<optimized out>, end=<optimized out>)
    at /home/hermann/lilypond-git/lily/grob-property.cc:212
#25 0x0000555555635dce in Grob::extent(Grob*, Axis) const (address@hidden, address@hidden, address@hidden)
    at /home/hermann/lilypond-git/lily/grob.cc:467
#26 0x00005555558fa09c in Axis_group_interface::relative_maybe_bound_group_extent(std::vector<Grob*, std::allocator<Grob*> > const&, Grob*, Axis, bool) (elts=std::vector of length 1, capacity 1 = {...}, address@hidden, address@hidden, address@hidden)
    at /home/hermann/lilypond-git/lily/axis-group-interface.cc:106
#27 0x00005555558fa345 in Axis_group_interface::relative_group_extent(std::vector<Grob*, std::allocator<Grob*> > const&, Grob*, Axis) (a=Y_AXIS, common=0x555556232530, elts=std::vector of length 1, capacity 1 = {...})
    at /home/hermann/lilypond-git/lily/axis-group-interface.cc:91
#28 0x00005555558fa345 in Axis_group_interface::generic_group_extent(Grob*, Axis) (me=0x555556232530, a=Y_AXIS)
    at /home/hermann/lilypond-git/lily/axis-group-interface.cc:453
#29 0x00007ffff7b21762 in scm_dapply (proc=0x7ffff3bbea70, arg1=0x7fffebd5a320, args=0x404) at eval.c:4895
#30 0x0000555555873dd8 in Grob::try_callback_on_alist(scm_unused_struct**, scm_unused_struct*, scm_unused_struct*) (proc=0x7ffff3bbea70, sym=0x7ffff32984a0, ali---Type <return> to continue, or q <return> to quit---
st=0x5555562325c0, this=0x555556232530)
    at /home/hermann/lilypond-git/lily/grob-property.cc:232
#31 0x0000555555873dd8 in Grob::internal_get_property(scm_unused_struct*) const (sym=<optimized out>, this=<optimized out>)
    at /home/hermann/lilypond-git/lily/grob-property.cc:184
#32 0x0000555555873dd8 in Grob::internal_get_maybe_pure_property(scm_unused_struct*, bool, int, int) const (this=<optimized out>, sym=<optimized out>, pure=<optimized out>, start=<optimized out>, end=<optimized out>)
    at /home/hermann/lilypond-git/lily/grob-property.cc:212
#33 0x0000555555635dce in Grob::extent(Grob*, Axis) const (address@hidden, address@hidden, address@hidden)
    at /home/hermann/lilypond-git/lily/grob.cc:467
#34 0x00005555558fa09c in Axis_group_interface::relative_maybe_bound_group_extent(std::vector<Grob*, std::allocator<Grob*> > const&, Grob*, Axis, bool) (elts=std::vector of length 20, capacity 21 = {...}, address@hidden, address@hidden, address@hidden)
    at /home/hermann/lilypond-git/lily/axis-group-interface.cc:106
#35 0x00005555558fa345 in Axis_group_interface::relative_group_extent(std::vector<Grob*, std::allocator<Grob*> > const&, Grob*, Axis) (a=Y_AXIS, common=0x555556212280, elts=std::vector of length 20, capacity 21 = {...})
    at /home/hermann/lilypond-git/lily/axis-group-interface.cc:91
#36 0x00005555558fa345 in Axis_group_interface::generic_group_extent(Grob*, Axis) (me=0x555556212280, a=Y_AXIS)
---Type <return> to continue, or q <return> to quit---
   terface.cc:453
#37 0x00007ffff7b21762 in scm_dapply (proc=0x7ffff3bde420, arg1=0x7fffebd5bc80, args=0x404) at eval.c:4895
#38 0x0000555555873dd8 in Grob::try_callback_on_alist(scm_unused_struct**, scm_unused_struct*, scm_unused_struct*) (proc=0x7ffff3bde420, sym=0x7ffff32984a0, alist=0x555556212310, this=0x555556212280) at /home/hermann/lilypond-git/lily/grob-property.cc:232

#39 0x0000555555873dd8 in Grob::internal_get_property(scm_unused_struct*) const (sym=<optimized out>, this=<optimized out>)
    at /home/hermann/lilypond-git/lily/grob-property.cc:184
#40 0x0000555555873dd8 in Grob::internal_get_maybe_pure_property(scm_unused_struct*, bool, int, int) const (this=<optimized out>, sym=<optimized out>, pure=<optimized out>, start=<optimized out>, end=<optimized out>) at /home/hermann/lilypond-git/lily/grob-property.cc:212
#41 0x0000555555635dce in Grob::extent(Grob*, Axis) const (address@hidden, address@hidden, address@hidden)
    at /home/hermann/lilypond-git/lily/grob.cc:467
#42 0x000055555569d778 in System::post_processing() (address@hidden) at /home/hermann/lilypond-git/lily/system.cc:542
#43 0x00005555556a08bd in System::get_paper_system() (this=0x555556212280) at /home/hermann/lilypond-git/lily/system.cc:581
#44 0x000055555583ce9e in Page_breaking::draw_page(scm_unused_struct*, scm_unused_struct*, int, bool) (address@hidden, address@hidden, configuration=0x7fffebd88930, address@hidden, last=<optimized out>)
    at /home/hermann/lilypond-git/lily/page-breaking.cc:560
#45 0x000055555583d741 in Page_breaking::make_pages(std::vector<unsigned long, std::allocator<unsigned long> >, scm_unused_struct*) (address@hidden, lines_per_page=std::vector of length 1, capacity 1 = {...}, systems=<optimized out>, address@hidden)
    at /home/hermann/lilypond-git/lily/page-breaking.cc:657

#46 0x000055555579ab42 in Optimal_page_breaking::solve() (address@hidden)
    at /home/hermann/lilypond-git/lily/optimal-page-breaking.cc:219
#47 0x00005555556226b3 in ly_optimal_breaking(scm_unused_struct*) (pb=<optimized out>) at /home/hermann/lilypond-git/lily/page-breaking-scheme.cc:45
#48 0x00007ffff7b21762 in scm_dapply (proc=0x7ffff3b7b470, arg1=0x7fffeb60b740, args=0x404) at eval.c:4895
#49 0x000055555571a6d0 in Paper_book::pages() (address@hidden) at /home/hermann/lilypond-git/lily/paper-book.cc:653
#50 0x000055555571aa45 in Paper_book::output_aux(scm_unused_struct*, bool, long*, long*) (address@hidden, address@hidden, address@hidden, address@hidden, address@hidden) at /home/hermann/lilypond-git/lily/paper-book.cc:148

#51 0x000055555571ad1d in Paper_book::output(scm_unused_struct*) (address@hidden, address@hidden)
    at /home/hermann/lilypond-git/lily/paper-book.cc:171

#52 0x00005555557aa02b in ly_book_process(scm_unused_struct*, scm_unused_struct*, scm_unused_struct*, scm_unused_struct*) (book_smob=<optimized out>, default_paper=<optimized out>, default_layout=0x7ffff0af4c90, output=0x7ffff25213c0) at /home/hermann/lilypond-git/lily/book-scheme.cc:78
#53 0x00007ffff7b218df in scm_dapply (proc=0x7ffff32d34f0, arg1=0x7ffff3c476f0, args=0x7fffeb60b720, address@hidden) at eval.c:4930

#54 0x00007ffff7b2459b in deval (x=<optimized out>, env=<optimized out>) at eval.c:4378

#55 0x00007ffff7b2c162 in scm_c_with_fluid (fluid=0x7ffff3293380, address@hidden, address@hidden <catch_protected_eval_body(void*)>, address@hidden) at fluids.c:463
#56 0x00005555558885f6 in ly_eval_scm(scm_unused_struct*, Input, bool, Lily_parser*) (address@hidden, i=..., address@hidden, pa---Type <return> to continue, or q <return> to quit---
address@hidden) at /home/hermann/lilypond-git/lily/parse-scm.cc:181

#57 0x0000555555936cd4 in Lily_lexer::eval_scm(scm_unused_struct*, Input, char) (address@hidden, address@hidden, hi=..., address@hidden '#') at /home/hermann/lilypond-git/lily/lexer.ll:1096
#58 0x000055555595074c in Lily_lexer::eval_scm_token(scm_unused_struct*, Input) (address@hidden, sval=0x7fffeb608150, w=...)
    at /home/hermann/lilypond-git/lily/include/lily-lexer.hh:63
#59 0x000055555594fae6 in yyparse(Lily_parser*, scm_unused_struct**) (address@hidden, address@hidden)
    at /home/hermann/lilypond-git/lily/parser.yy:452
#60 0x00005555559506d4 in Lily_parser::do_yyparse_trampoline(void*) (address@hidden)
    at /home/hermann/lilypond-git/lily/parser.yy:4214

#61 0x00007ffff7b2c162 in scm_c_with_fluid (fluid=0x7ffff3293400, value=0x7ffff164de30, address@hidden <Lily_parser::do_yyparse_trampoline(void*)>, address@hidden) at fluids.c:463
#62 0x000055555593cf1e in Lily_parser::do_yyparse() (address@hidden) at /home/hermann/lilypond-git/lily/parser.yy:4207
#63 0x000055555579ea38 in Lily_parser::parse_file(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (address@hidden, init="init.ly", name="lilypondH/Test/forum/bezier/metaspline-tests-01.ly", out_name="metaspline-tests-01") at /home/hermann/lilypond-git/lily/lily-parser.cc:123
#64 0x0000555555800e02 in ly_parse_file(scm_unused_struct*) (name=<optimized out>) at /home/hermann/lilypond-git/lily/lily-parser-scheme.cc:122
#65 0x00007ffff7b248a6 in deval (x=<optimized out>, address@hidden, env=<optimized out>, address@hidden) at eval.c:4232

#66 0x00007ffff7b21f45 in scm_dapply (proc=0x7ffff164dfd0, arg1=<optimized out>, args=0x7ffff164dec0) at eval.c:5012
#67 0x00007ffff7b7aba3 in scm_c_catch (tag=<optimized out>, address@hidden <scm_body_thunk>, address@hidden, handler=0x7ffff7b7a5c0 <scm_handle_by_proc>, address@hidden, pre_unwind_handler=0x0, pre_unwind_handler_data=0x7fffffffce90) at throw.c:203
#68 0x00007ffff7b7adcd in scm_catch_with_pre_unwind_handler (key=<optimized out>, thunk=<optimized out>, handler=<optimized out>, pre_unwind_handler=<optimized out>) at throw.c:587
#69 0x00007ffff7b218df in scm_dapply (proc=0x7ffff32d34f0, arg1=0x7ffff3cc68e0, args=0x7ffff164df10, address@hidden) at eval.c:4930
#70 0x00007ffff7b2459b in deval (x=<optimized out>, env=<optimized out>, address@hidden) at eval.c:4378
#71 0x00007ffff7b2498c in deval (x=0x7ffff17ebbc0, address@hidden, env=0x7ffff164e180, address@hidden) at eval.c:3397
#72 0x00007ffff7b21f45 in scm_dapply (proc=0x7ffff164fbe0, arg1=<optimized out>, args=0x7ffff164fa40) at eval.c:5012
#73 0x00007ffff1ded42a in scm_srfi1_for_each (proc=0x7ffff164fb60, arg1=0x7ffff164fb00, args=0x404) at srfi-1.c:1516
#74 0x00007ffff7b2477e in deval (x=<optimized out>, env=<optimized out>, address@hidden) at eval.c:4367
#75 0x00007ffff7b2498c in deval (x=0x7ffff17eb0c0, env=0x7ffff164f450, address@hidden) at eval.c:3397
#76 0x00007ffff7b25ed4 in deval (x=0x7ffff164f680, address@hidden, address@hidden) at eval.c:3648
#77 0x00007ffff7b21f45 in scm_dapply (proc=0x7ffff17f0d50, arg1=<optimized out>, args=0x7ffff164fac0) at eval.c:5012
#78 0x00005555557cc840 in Scm_variable::operator()(scm_unused_struct*) (arg1=<optimized out>, this=<optimized out>)
    at /home/hermann/lilypond-git/lily/include/lily-modules.hh:73
---Type <return> to continue, or q <return> to quit---
#79 0x00005555557cc840 in main_with_guile(void*, int, char**) () at /home/hermann/lilypond-git/lily/main.cc:519
#80 0x00007ffff7b3ce0f in invoke_main_func (body_data=0x7fffffffda40) at init.c:367
#81 0x00007ffff7b1433a in c_body (address@hidden) at continuations.c:349
#82 0x00007ffff7b7aba3 in scm_c_catch (address@hidden, address@hidden <c_body>, address@hidden, address@hidden <c_handler>, address@hidden, address@hidden <scm_handle_by_message_noexit>, pre_unwind_handler_data=0x0) at throw.c:203
#83 0x00007ffff7b14914 in scm_i_with_continuation_barrier (address@hidden <c_body>, address@hidden, address@hidden <c_handler>, address@hidden, pre_unwind_handler=0x7ffff7b7b290 <scm_handle_by_message_noexit>, address@hidden) at continuations.c:325
#84 0x00007ffff7b149f0 in scm_c_with_continuation_barrier (address@hidden <invoke_main_func>, address@hidden)
    at continuations.c:367
#85 0x00007ffff7b78fb6 in scm_i_with_guile_and_parent (func=0x7ffff7b3cdf0 <invoke_main_func>, data=0x7fffffffda40, parent=<optimized out>)
    at threads.c:733
#86 0x00007ffff7b3cf85 in scm_boot_guile (argc=<optimized out>, argv=<optimized out>, main_func=<optimized out>, closure=<optimized out>)
    at init.c:350
#87 0x000055555559fc68 in main(int, char**, char**) (argc=2, argv=0x7fffffffdc08, envp=<optimized out>)
    at /home/hermann/lilypond-git/lily/main.cc:831
(gdb)