Re: Strange LilyPond crash

[Marc Hohl]

Am 21.11.2015 um 10:53 schrieb David Kastrup:
> Marc Hohl <address@hidden> writes:
[...]
> Looks like there is some sequential iterator consulted for
> pending_moment that no longer has an iter_ to refer to.
>
> More likely than not, one of the fixes for addlyrics going off the deep
> end when its associated context dies is involved here.

I am not sure whether I understand this correctly, but I have replaced 
every occurence of \addlyrics with its proper counterpart \new Lyrics 
\lyricsto "..."

> So it's likely that near the time in question, some context or lyrics or
> other dies and that this has unforeseen repercussions.

The lilypond files are structured this way:

 - for each song, I have a file <song>-Noten.ily that contains all
   instrumental and choral parts
 - for each instrument, there is a file <song>-<instrument>.ly that
   includes the <song>-Noten.ily file and picks up the parts associated
   to that instrument
 - for each song, there is a <song>-Partitur.ly file that includes the
   <song>-Noten.ily and displays all the stuff nicely.

If I compile every <song>-<instrument>.ly file, no errors occur (with 
exeption of the Finale-Drums.ly mentioned earier in this thread), but 
most (but not all) <song>-Partitur.ly files crash. There is no obvious
connection to a specific instrument that may cause the crash, as every
instrumental part occurs at least one in the <song>-<instrument>.ly file.

All instrumental parts have exactly the same number of measures, so I 
can't see a reason for a context dying when another one depending on it 
is still alive.
> > What does this mean?
>
> Well, I hope you can figure out some more of what is involved here,
> hopefully to the degree of creating a crash example that is of
> manageable size.

As soon as I remove an instrumental part at random (or even some notes), 
the crash may or may not disappear. I am not sure but IIRC a file that 
compiled fine during one run crashed without having done any changes to 
that specific file (nor its includes).
Is it possible that the self-compiled version I am using has some 
internal errors that may cause the crash? I update the git repository 
regularly and re-compile lilypond after applying the latest patches.

Marc