Re: page breaker crash

[Joe Neeman]

On Sat, 2006-09-23 at 12:51 +0200, Nicolas Sceaux wrote:
> Hi,
> 
> The following snippet makes lily to crash:

Thanks, fixed.

> 
> \score {
>   \new StaffGroup <<
>     \new Staff <<
>       {
>         \break
>         \overrideProperty #"Score.NonMusicalPaperColumn"
>         #'line-break-system-details
>         #'((alignment-extra-space . 20))
>       }
>       { \clef french c''1 c''1 } 
>     >>
>     \new Staff { \clef soprano g'1 g'1 }
>     \new Staff { \clef mezzosoprano e'1 e'1 }
>     \new Staff { \clef alto g1 g1 }
>     \new Staff { \clef bass c1 c1 }
>   >>
>   \header {
>     piece = "Score A, with tweaks"
>   }
> }
> \score {
>   \new StaffGroup <<
>     \new Staff { \clef french c''1 c''1 }
>     \new Staff { \clef soprano g'1 g'1 }
>     \new Staff { \clef mezzosoprano e'1 e'1 }
>     \new Staff { \clef alto g1 g1 }
>     \new Staff { \clef bass c1 c1 }
>   >>
>   \header {
>     piece = "Score B, no tweak"
>   }
> }
> 
> -*- mode: compilation; default-directory: "~/tmp/" -*-
> Compilation started at Sat Sep 23 12:46:26
> 
> lilypond /Users/nicolas/tmp/page-breaker-crash.ly
> GNU LilyPond 2.9.19
> Processing `/Users/nicolas/tmp/page-breaker-crash.ly'
> Parsing...
> Interpreting music... [2]
> Preprocessing graphical objects... 
> Interpreting music... [2]
> Preprocessing graphical objects... 
> programming error: tried to space systems on a bad number of pages
> continuing, cross fingers
> 
> Program received signal EXC_BAD_ACCESS, Could not access memory.
> Reason: KERN_INVALID_ADDRESS at address: 0xfffffff8
> space_systems_on_best_pages (address@hidden, page_height=147.74976377952757, 
> odd_pages_penalty=0, ragged=false, ragged_last=true) at page-spacing.cc:432
> 432       best.force_.back () += (min_p_count % 2) ? odd_pages_penalty : 0;
> (gdb) print best
> $1 = (Spacing_result &) @0xbfffc4c8: {
>   systems_per_page_ = {
>     <__vector<vsize,std::allocator<vsize> >> = {
>       <_Vector_base<vsize,std::allocator<vsize> >> = {
>         _M_impl = {
>           <allocator<vsize>> = {
>             <new_allocator<vsize>> = {<No data fields>}, <No data fields>}, 
>           members of _Vector_impl: 
>           _M_start = 0x0, 
>           _M_finish = 0x0, 
>           _M_end_of_storage = 0x0
>         }
>       }, <No data fields>}, <No data fields>}, 
>   force_ = {
>     <__vector<Real,std::allocator<Real> >> = {
>       <_Vector_base<Real,std::allocator<Real> >> = {
>         _M_impl = {
>           <allocator<Real>> = {
>             <new_allocator<Real>> = {<No data fields>}, <No data fields>}, 
>           members of _Vector_impl: 
>           _M_start = 0x0, 
>           _M_finish = 0x0, 
>           _M_end_of_storage = 0x0
>         }
>       }, <No data fields>}, <No data fields>}, 
>   penalty_ = 0, 
>   demerits_ = inf
> }
> (gdb) bt
> #0  space_systems_on_best_pages (address@hidden, 
> page_height=147.74976377952757, odd_pages_penalty=0, ragged=false, 
> ragged_last=true) at page-spacing.cc:432
> #1  0x000dd6ac in Optimal_page_breaking::try_page_spacing (this=0xbfffc5a8, 
> address@hidden) at optimal-page-breaking.cc:48
> #2  0x000ddbcc in Optimal_page_breaking::solve (this=0xbfffc5a8) at 
> optimal-page-breaking.cc:92
> #3  0x000e1e04 in ly_optimal_breaking (pb=0xbfffc4c8) at 
> page-breaking-scheme.cc:29
> 
> 
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