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From: Paul Eggert <eggert@cs.ucla.edu>
To: Jim Meyering <jim@meyering.net>
Cc: Emacs development discussions <emacs-devel@gnu.org>
Subject: Re: please set both MALLOC_PERTURB_ and MALLOC_CHECK_ envvars
Date: Sat, 28 May 2011 22:44:11 -0700	[thread overview]
Message-ID: <4DE1DD2B.5020902@cs.ucla.edu> (raw)
In-Reply-To: <874o4fx17z.fsf@rho.meyering.net>

On 05/27/11 14:50, Jim Meyering wrote:
>     export MALLOC_PERTURB_=$((RANDOM % 255 + 1))
>     export MALLOC_CHECK_=3
> 

I tried that, on Fedora 14 x86-64, and the Emacs trunk build failed
as follows:

  Compiling language/thai-word.el

  In toplevel form:
  language/thai-word.el:10738:5:Error: Memory exhausted--use C-x s then exit and restart Emacs
  make[2]: *** [language/thai-word.elc] Error 1
  make[2]: Leaving directory `/home/eggert/src/gnu/emacs/int-hash/lisp'

As near as I can discover, Emacs was fine, but the malloc debugging
caused it to use so much more memory that Emacs ran out of memory
trying to compile thai-word.el.  This is on a host with
8 GiB of RAM.

Perhaps there is a real Emacs bug in there somewhere, but I spent
a reasonable amount of time looking for it unsuccessfully.



  parent reply	other threads:[~2011-05-29  5:44 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-27 21:50 please set both MALLOC_PERTURB_ and MALLOC_CHECK_ envvars Jim Meyering
2011-05-27 21:57 ` Jim Meyering
2011-05-28  0:13   ` Thien-Thi Nguyen
2011-05-28 18:52     ` Jim Meyering
2011-05-30 10:30       ` Jim Meyering
2011-05-30 17:49         ` Andreas Schwab
2011-05-28 20:19   ` Chong Yidong
2011-05-28 20:33     ` Jim Meyering
2011-05-29  5:44 ` Paul Eggert [this message]
2011-05-29  7:32   ` Jim Meyering

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