From: martin rudalics <rudalics@gmx.at>
To: Dmitry Antipov <dmantipov@yandex.ru>
Cc: Eli Zaretskii <eliz@gnu.org>,
Emacs development discussions <emacs-devel@gnu.org>
Subject: Re: Hard bug caused by window management code?
Date: Wed, 27 Mar 2013 11:02:52 +0100 [thread overview]
Message-ID: <5152C3CC.8050500@gmx.at> (raw)
In-Reply-To: <5152BB48.10700@yandex.ru>
>> It seems to hang in `set-window-configuration'.
Could you confirm that?
> Now I'm seeing that enormously huge SIZE (3151760 !!!) passed from Lisp
> to Fset_window_new_total
This could come from the following line in delete_all_child_windows
wset_total_lines (w, w->buffer);
which is later on used as
if (BUFFERP (w->total_lines))
wset_buffer (w, w->total_lines);
in `set-window-configuration' and escaped my understanding ever since.
Note the "Kludge Alert" there.
> causes an attempt to allocate appropriately huge
> glyph matrix (window_resize_apply propagates this value from w->new_total
> to w->total_lines, next it's used in window_box_height, and finally in
> required_matrix_height, etc.). So:
>
> 1) Can you check lisp/window.el and find from where this SIZE comes?
See above. I do not have any other clues.
> 2) Shouldn't we check whether SIZE in Fset_window_new_total and
This would be _usually_ caught by window_resize_check. But note that
`set-window-configuration' is special in this regard.
> Fset_window_new_normal isn't too large,
This is a float and should by always <= 1. Any wrong value here should
never have grave implications like the one you observed.
> for example, not larger
> than the appropriate dimension of the frame contains WINDOW?
martin
next prev parent reply other threads:[~2013-03-27 10:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-27 6:11 Hard bug caused by window management code? Dmitry Antipov
2013-03-27 7:07 ` Eli Zaretskii
2013-03-27 7:23 ` martin rudalics
2013-03-27 9:26 ` Dmitry Antipov
2013-03-27 10:02 ` martin rudalics [this message]
2013-03-27 10:39 ` Dmitry Antipov
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