From: Eli Zaretskii <eliz@gnu.org>
To: Stefan Monnier <monnier@IRO.UMontreal.CA>
Cc: lekktu@gmail.com, 17411@debbugs.gnu.org
Subject: bug#17411: 24.4.50; emacs_backtrace.txt
Date: Mon, 12 May 2014 16:21:59 +0300 [thread overview]
Message-ID: <83ppjjt9mw.fsf@gnu.org> (raw)
In-Reply-To: <jwvsiof3cv3.fsf-monnier+emacsbugs@gnu.org>
> From: Stefan Monnier <monnier@IRO.UMontreal.CA>
> Cc: Juanma Barranquero <lekktu@gmail.com>, 17411@debbugs.gnu.org
> Date: Sun, 11 May 2014 23:26:06 -0400
>
> >> balance_an_interval at intervals.c:436
> >> balance_intervals_internal at intervals.c:509
> >> balance_intervals_internal at intervals.c:506
> > A duplicate of 17340.
>
> Indeed. Both seemed to fail the "eassert (LENGTH (i) > 0);" and right
> in the middle of a tree. I tried to add this assertion everywhere where the
> length of an interval can be changed, so we should never bump into
> a case like the above, because such a non-positive length should have
> been caught by an assertion earlier.
>
> Evidence shows that I missed some cases, tho. I'd be interested to see
> the stack trace before we enter GC (in case it's in the middle of some
> interval manipulation, maybe?).
You mean, this one:
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=17411#8
> It might also be interesting to look at `i' to see whether it's
> hopelessly messed up, or if it looks "incorrect but sanish".
I was unable to convince Drew to run Emacs under GDB and leave the
crashed session running to allow us ask him to look around in the
crashed session. So I think the only practical way of obtaining this
information is to add eassert's that will tell you which one is it.
next prev parent reply other threads:[~2014-05-12 13:21 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-05 20:08 bug#17411: 24.4.50; emacs_backtrace.txt Drew Adams
2014-05-07 15:20 ` Juanma Barranquero
2014-05-12 2:37 ` Eli Zaretskii
2014-05-12 3:26 ` Stefan Monnier
2014-05-12 13:21 ` Eli Zaretskii [this message]
2014-05-12 18:18 ` Stefan Monnier
2014-05-12 18:33 ` Eli Zaretskii
2014-05-13 19:32 ` Stefan Monnier
2014-05-13 19:54 ` Eli Zaretskii
2014-05-13 21:19 ` Stefan Monnier
2014-05-14 2:47 ` Eli Zaretskii
2014-05-14 3:27 ` Stefan Monnier
2015-12-26 14:16 ` bug#17340: " Lars Ingebrigtsen
2015-12-26 14:24 ` Eli Zaretskii
[not found] ` <<jwvbnv1s7jt.fsf-monnier+emacsbugs@gnu.org>
[not found] ` <<837g5poz4o.fsf@gnu.org>
2014-05-14 14:38 ` Drew Adams
2014-05-14 15:21 ` Eli Zaretskii
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