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Re: Segmentation fault during `make check'

From: Michael Käppler
Subject: Re: Segmentation fault during `make check'
Date: Mon, 15 Mar 2021 23:21:56 +0100
User-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1

Hi Jonas,

I do not know if the stack trace of the optimized binary is useful, but:

#0  0x00007ffff780aa1c in scm_dapply (proc=0x404, arg1=<optimized out>,
      at eval.c:4989
#1  0x0000555555669b84 in
Engraver::internal_make_grob(scm_unused_struct*, scm_unused_struct*,
char const*, int, char const*) (this=<optimized out>,
symbol=0x7ffff2fc4920, cause=cause@entry=0x404, file=0x5555558d2848
"/home/michael/lilypond/lily/", line=73,
fun=0x5555558d2f28 <Paper_column_engraver::make_columns()::__FUNCTION__>
"make_columns") at /home/michael/lilypond/lily/
This is in the branch of "if (ly_is_procedure (creation_callback))",
which probably means two things:
thanks for spotting this. 'creation_callback' is currently not protected
garbage collection, unlike the other debugging callbacks.
I will prepare a separate MR to fix this.


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