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bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend
From: |
Eli Zaretskii |
Subject: |
bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend |
Date: |
Sat, 14 Sep 2013 13:16:12 +0300 |
> Date: Sat, 14 Sep 2013 11:47:39 +0200
> From: martin rudalics <rudalics@gmx.at>
> CC: dgutov@yandex.ru, 15365@debbugs.gnu.org
>
> >> So where was Dmitry's cursor?
> >
> > At PT, whose value was 78.
>
> So PT was not in the window and the fact that it apparently passed the
> earlier check (PT < CHARPOS (start)) means that PT was after the end of
> the window. Is that conclusion correct?
No. It was in the 3rd line:
0: edges=(1,77),enb=0,r2l=0,cont=0,trunc=(0,0),at_zv=0
1: edges=(77,78),enb=0,r2l=0,cont=0,trunc=(0,0),at_zv=0
2: edges=(78,79),enb=0,r2l=0,cont=0,trunc=(0,0),at_zv=0
As you see, the 3rd line begins with character position 78, and that's
where point is. So the cursor should be displayed there.
> > But I probably don't understand what you wanted to ask or tell.
>
> Figure out why row_containing_pos (w, PT, r0, NULL, 0) returned 0.
That's easy: r0->enabled_p is zero (that's what enb=0 is about). And
row_containing_pos immediately returns NULL in that case.
> And why try_window_id was supposed to abort in this case and why
> this abort didn't occur more frequently.
My analysis concluded that it wasn't supposed to abort, just not call
set_cursor_from_row in that case. The call to abort was added long
ago, when row_containing_pos got a minor modification, and the person
who made the change thought that perhaps that change will cause
damage. I think we can remove that call to abort now. And if that
causes any regressions, there's a more drastic way of calling GIVE_UP
in that case.
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Dmitry Gutov, 2013/09/13
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Eli Zaretskii, 2013/09/13
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Dmitry Gutov, 2013/09/13
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Eli Zaretskii, 2013/09/14
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, martin rudalics, 2013/09/14
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Eli Zaretskii, 2013/09/14
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, martin rudalics, 2013/09/14
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend,
Eli Zaretskii <=
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Dmitry Gutov, 2013/09/14
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Eli Zaretskii, 2013/09/14
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Dmitry Gutov, 2013/09/14
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Eli Zaretskii, 2013/09/15
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Dmitry Gutov, 2013/09/15
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Dmitry Gutov, 2013/09/14
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Eli Zaretskii, 2013/09/14
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Eli Zaretskii, 2013/09/19
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Dmitry Gutov, 2013/09/22
- bug#15365: 24.3.50; Segfault when calling vc-git-log-edit-toggle-amend, Eli Zaretskii, 2013/09/22