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bug#43700: 28.0.50; Crash creating a second frame
From: |
Eli Zaretskii |
Subject: |
bug#43700: 28.0.50; Crash creating a second frame |
Date: |
Sat, 03 Oct 2020 17:02:47 +0300 |
> Cc: 43700@debbugs.gnu.org
> From: Andy Moreton <andrewjmoreton@gmail.com>
> Date: Sat, 3 Oct 2020 14:40:47 +0100
>
> No - watchpoints seem to be completely broken in this build of gdb:
> hardware watchpoints don't work, and if software watchpoints work then I
> do not have the patience to wait for hours for them to fire.
Strange. I see no reports of this problem on the Internet. What
version of GDB is that? Maybe try to downgrade to a previous one?
> > Another possibility is that the face cache gets reset not for the new
> > frame being created, but for the other frame. You can tell by
> > comparing the value of 'f' at the point where init_frame_faces is
> > called and at the segfault point. If this is what happens, then we
> > will need a slightly more sophisticated method of setting the
> > watchpoint.
>
> True, but not much use without working watchpoints.
Does it help to set a breakpoint in free_realized_faces instead? Also
in uncache_face, here:
if (face->id == c->used)
--c->used;
The last one could be conditioned on c->used == 1 (before the
decrement).
- bug#43700: 28.0.50; Crash creating a second frame, Eli Zaretskii, 2020/10/01
- bug#43700: 28.0.50; Crash creating a second frame, Andy Moreton, 2020/10/01
- bug#43700: 28.0.50; Crash creating a second frame, Eli Zaretskii, 2020/10/02
- bug#43700: 28.0.50; Crash creating a second frame, Andy Moreton, 2020/10/02
- bug#43700: 28.0.50; Crash creating a second frame, Eli Zaretskii, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame, Andy Moreton, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame, Eli Zaretskii, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame, Andy Moreton, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame,
Eli Zaretskii <=
- bug#43700: 28.0.50; Crash creating a second frame, Andy Moreton, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame, Eli Zaretskii, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame, Andy Moreton, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame, Eli Zaretskii, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame, Lars Ingebrigtsen, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame, Eli Zaretskii, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame, Lars Ingebrigtsen, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame, Eli Zaretskii, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame, Andy Moreton, 2020/10/03
- bug#43700: 28.0.50; Crash creating a second frame, Eli Zaretskii, 2020/10/03