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Emacs freezes after C-v command


From: Robo Cernansky
Subject: Emacs freezes after C-v command
Date: Wed, 31 Jul 2002 09:38:15 +0200 (Central Europe Daylight Time)

Hallo!

I'd like to report a bug in GNU Emacs. It appears in both versions that I use:

"GNU Emacs 21.2.1 (i386-redhat-linux-gnu, X toolkit, Xaw3d scroll bars)
of 2002-04-09 on porky.devel.redhat.com"
(it is installed from original rpm package from RedHat 7.3)
$ uname -a
Linux amit.tt 2.4.18-5custom #1 Tue Jul 30 22:02:01 CEST 2002 i586 unknown

and

"GNU Emacs 21.1.1 (i386-mingw-nt5.0.2195) of 2001-11-02 on ROBOC"
MS Windows 2000

Emacs freezes (executing an infinite loop) when C-v is executed in buffer
whose last line is also last in buffer's window. To reproduce this bug follow
these steps:

* run emacs
* type C-h C-c (we use for example copying conditions file)
* type M-> (move to end of buffer)
* move pointer to the middle of buffer window and type C-l; make sure that
  last line of buffer is also last in the window (last line is the empty one)
* type C-v (forward one screen)

Now Emacs is not responding to any user action. It must be killed by SIGTERM.

Note that this only happens when variable scroll-margin is set e.g. to 3. So in
your .emacs should be this lines:

(custom-set-variables
 '(scroll-margin 3))


Regards,

Robert


-- 
Robo Cernansky
E-mail: address@hidden
Jabber: address@hidden




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