GNU bug report logs - #26952
25.2; repeated buffer insertion (e.g. yank-rectangle) consumes excessive memory (4GB+ for 90MB of text)

Previous Next

Full log

Message #15 received at 26952 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: npostavs <at> users.sourceforge.net
Cc: pot <at> gnu.org, 26952 <at> debbugs.gnu.org
Subject: Re: bug#26952: 25.1;
 loops eating all memory while yanking big rectangle
Date: Sat, 20 May 2017 12:59:26 +0300

> From: npostavs <at> users.sourceforge.net
> Date: Fri, 19 May 2017 20:24:03 -0400
> Cc: 26952 <at> debbugs.gnu.org
> 
> > $ emacs -Q -nw
> >
> > I find a big text file that you can download from
> > <http://fly.isti.cnr.it/tmp/bigfile.txt.xz>
> >
> > Once decompressed, the file is 80 MB long, composed of over 600000 lines
> > around 150 characters long each
> >
> > Then I do this:
> >
> > C-u 29 M-f		--> point is on the tab after "21"
> > M->
> > C-b
> > C-u 30 SPC
> > M-x kill-rectangle	--> Emacs discards the undo buffer
> > C-x b aa		--> create a scratch buffer
> > M-x yank-rectangle
> >
> > at this point, Emacs freezes and starts growing in size.  On my system,
> > it started from less than 1GB vmem and grew to over 10GB when I killed
> > it.  Only kill -9 succeded to kill it.
> 
> I see the issue also with 25.2, but not with master (no idea what might
> have fixed it though).

Thanks for looking into this.  Can you tell more about where it is
looping in Emacs 25.2?  I'm uneasy about not knowing what fixed this.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.