From: Reuben Thomas <rrt@sc3d.org>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 24640@debbugs.gnu.org
Subject: bug#24640: Crashes in 25.1
Date: Sun, 9 Oct 2016 21:21:01 +0100 [thread overview]
Message-ID: <CAOnWdohiYV8HxR5dg54Z8aFknOTG1v4arQ3ScvhjcxFusYqmvQ@mail.gmail.com> (raw)
In-Reply-To: <83r37pg7zl.fsf@gnu.org>
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On 9 October 2016 at 10:57, Eli Zaretskii <eliz@gnu.org> wrote:
> > From: Reuben Thomas <rrt@sc3d.org>
> > Date: Sun, 9 Oct 2016 08:45:08 +0100
> > Cc: 24640@debbugs.gnu.org
> >
> > The only efficient way to speed up debugging (or rather to make sure
> > it succeeds at all) is for you to come up with a reproducible recipe
> > and post here all the files needed for reproducing the crashes.
> >
> > That would seem to require me to bisect my .desktop and potentially
> post dozens of personal files, so doesn't
> > seem feasible.
>
> If you just start a fresh session, save its desktop, then restart it,
> while using the lazy-load feature, does it start normally? Maybe all
> that's needed is to do this, with no personal files involved.
>
It starts normally, unfortunately.
> > And the first step is
> > to stop using an optimized build, because it makes debugging much
> > harder if not impossible.
> >
> > I'll see if, having rebuilt from source without optimisation, the bug
> still fires.
>
I rebuilt with the options suggested in etc/DEBUG, and couldn't get it to
crash.
I then tried building with -Og instead of -O0, as suggested in etc/DEBUG.
Still no crash. (I ran each binary under gdb 3 times, as when it crashes it
crashes more than once every 3 times I run it.) I tried building with -O2:
it crashes again. Now that it is built with the same options as etc/DEBUG,
except for -O2, is that more useful?
I tried running Emacs with valgrind, but that just quickly bails out with
"memory exhausted".
> If you are willing to try the debugging yourself, there's some advice
> > in etc/DEBUG (search for "Debugging problems which happen in GC").
> >
> > I'll have a look.
>
> Thanks.
>
Sorry: having had a look, the reconstruction of Lisp data structures looks
like more than I have time for at present.
> > Do I understand correctly that this worked for you with Emacs 24.5?
> >
> > Yes, the identical setup loads fine in 24.5. I've never seen this sort
> of crash before.
>
> Does Emacs crash when restoring a desktop file written by Emacs 24.5,
> or only when it restores files written by Emacs 25?
>
Both.
--
http://rrt.sc3d.org
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next prev parent reply other threads:[~2016-10-09 20:21 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-07 23:12 bug#24640: Crashes in 25.1 Reuben Thomas
2016-10-08 5:53 ` Eli Zaretskii
2016-10-08 13:28 ` Reuben Thomas
2016-10-08 13:30 ` Reuben Thomas
2016-10-08 14:30 ` Eli Zaretskii
2016-10-08 15:26 ` Reuben Thomas
2016-10-08 15:34 ` Eli Zaretskii
2016-10-08 22:08 ` Reuben Thomas
2016-10-09 7:05 ` Eli Zaretskii
2016-10-09 7:45 ` Reuben Thomas
2016-10-09 9:57 ` Eli Zaretskii
2016-10-09 20:21 ` Reuben Thomas [this message]
2016-10-10 6:15 ` Eli Zaretskii
2016-10-10 16:12 ` Reuben Thomas
2016-10-10 16:33 ` Eli Zaretskii
2016-10-10 17:01 ` Reuben Thomas
2016-10-10 17:05 ` Eli Zaretskii
2016-10-10 17:06 ` Reuben Thomas
[not found] ` <CAOnWdoheXTvdasXN8vQFZPyayZVHD-QweqJupVrS8BQFxj2iGw@mail.gmail.com>
[not found] ` <831szodsus.fsf@gnu.org>
[not found] ` <CAOnWdojJHhajbRcinnubLfwWhY=snydnPM7Cws9ktX+pJe8aGA@mail.gmail.com>
[not found] ` <83zimccbzr.fsf@gnu.org>
[not found] ` <CAOnWdojzYsTR=wyrn-k2dJbStej89neskr=vwZQQWrQVCGtpkA@mail.gmail.com>
2016-10-11 11:59 ` Eli Zaretskii
2016-10-11 14:08 ` Reuben Thomas
2016-10-11 14:53 ` Eli Zaretskii
2016-10-11 15:19 ` Eli Zaretskii
2016-10-11 15:42 ` Reuben Thomas
2016-10-11 16:26 ` Eli Zaretskii
2016-10-11 15:41 ` Reuben Thomas
2016-10-11 16:33 ` Eli Zaretskii
2016-10-11 16:41 ` Reuben Thomas
2016-10-12 10:31 ` Eli Zaretskii
2016-10-12 10:57 ` Reuben Thomas
2016-10-12 11:14 ` Eli Zaretskii
2016-10-12 13:50 ` Toby Cubitt
2016-10-12 14:44 ` Eli Zaretskii
2016-10-12 16:56 ` Toby Cubitt
2016-10-12 17:28 ` Eli Zaretskii
2016-10-12 18:07 ` Toby Cubitt
2016-10-12 19:15 ` Eli Zaretskii
2016-10-12 20:45 ` Reuben Thomas
2016-10-14 20:06 ` Eli Zaretskii
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