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From: Eli Zaretskii <eliz@gnu.org>
To: lennart.borgman@gmail.com, deng@randomsample.de, emacs-devel@gnu.org
Subject: Re: Recenter video
Date: Wed, 23 Jun 2010 20:55:01 +0300	[thread overview]
Message-ID: <83mxuleiru.fsf@gnu.org> (raw)
In-Reply-To: <83vd9ae9c7.fsf@gnu.org>

> Date: Wed, 23 Jun 2010 06:06:32 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: deng@randomsample.de, emacs-devel@gnu.org
> 
> But to make such changes reliably I need to reproduce the problem on
> my machine.  Until now, I can only reproduce it extremely rarely (like
> once in the whole scroll of window.c, and only sometimes), even if I
> load my CPU with 2 programs each of which eats up 100% of CPU
> resources...

I found a way to artificially slow down redisplay, and now I can
reliably reproduce the recentering while scrolling window.c.  It
indeed happens because the window_end_valid flag is nil, and therefore
reconsider_clip_changes does not reset the clip_changed flag, which in
turn prevents try_scrolling from being called.

I can now look for a solution to this problem.  Thanks to all who
patiently tried what I asked them to and explained what they saw.



      parent reply	other threads:[~2010-06-23 17:55 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <87ocf24xi6.fsf@engster.org>
     [not found] ` <AANLkTilIbHosLmnAFlMyM9OWbPk79m2FOtDdi4IwYChb@mail.gmail.com>
     [not found]   ` <87k4pq4tel.fsf@engster.org>
2010-06-23  0:41     ` Recenter video Lennart Borgman
2010-06-23  3:06       ` Eli Zaretskii
2010-06-23  9:44         ` Lennart Borgman
2010-06-23 15:18           ` Eli Zaretskii
2010-06-23 16:14             ` Lennart Borgman
2010-06-23 16:25               ` Lennart Borgman
2010-06-23 17:44               ` Eli Zaretskii
2010-06-23 17:55         ` Eli Zaretskii [this message]

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