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Re: Issue 1732 in lilypond: occasional segfault when compiling input/reg
From: |
David Kastrup |
Subject: |
Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly |
Date: |
Tue, 23 Aug 2011 12:47:39 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
address@hidden writes:
> Comment #12 on issue 1732 by address@hidden: occasional
> segfault when compiling input/regression/midi/key-initial.ly
> http://code.google.com/p/lilypond/issues/detail?id=1732
>
> You might want to add the suppressions from the attached file, which
> filters practically all spurious warnings triggered in guile's garbace
> collection...
>
> There are, however, two relevant warnings in that log file, which
> might help pinpoint the problem:
>
> ==7941== Invalid read of size 4
> ==7941== at 0x812377D:
[...]
> ==7941== Address 0x3e is not stack'd, malloc'd or (recently) free'd
> ==7941==
> ==7941==
> ==7941== Process terminating with default action of signal 11 (SIGSEGV)
> ==7941== Access not within mapped region at address 0x3E
> ==7941== at 0x812377D:
Well, that's what I consider likely a null pointer access (after walking
from 0 to the desired field). Of course, this is the immediate cause of
the segfault.
However, I have not found the cause of the null pointer, and I have not
seen more information about it in the valgrind dump than I had been able
to find in the coredump already.
--
David Kastrup
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly, lilypond, 2011/08/01
- Message not available
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly, lilypond, 2011/08/22
- Message not available
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly, lilypond, 2011/08/22
- Message not available
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly, lilypond, 2011/08/23
- Message not available
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly, lilypond, 2011/08/23
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly,
David Kastrup <=
- Message not available
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly, lilypond, 2011/08/23
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly, Mike Solomon, 2011/08/23
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly, David Kastrup, 2011/08/23
- Message not available
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly, lilypond, 2011/08/23
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly, Mike Solomon, 2011/08/23
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly, David Kastrup, 2011/08/23
- Message not available
- Re: Issue 1732 in lilypond: occasional segfault when compiling input/regression/midi/key-initial.ly, lilypond, 2011/08/23