Comment #4 on issue 2356 by mts...@gmai...: Lilypond segfaults
http://code.google.com/p/lilypond/issues/detail?id=2356

More strangeness - I am getting a consistent segfault in scm-hash.cc.

Scheme_hash_table::try_retrieve (SCM k, SCM *v)

It's on the line:

SCM handle = scm_hashq_get_handle (hash_tab_, k);

This doesn't seem like the type of thing that'd usually crash.  I'm  
guessing that something got garbage collected that shouldn't have.  But it  
seems like the mark_smob method in context protects all of its scheme  
variables (save daddy_context_, but when I include it in mark_smob that  
doesn't change anything).

What's difficult, as I said before, is not having a small example.  Trying  
to debug w/ printf's on something like this is near-impossible.


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