bug#2790: emacs 22.1.1 cannot open 5GB file on 64GB 64-bit Linux box

[Mike Coleman <tutufan@gmail.com>]

Hi,

This machine isn't really connected to the Internet, but here's the
contents of that buffer, after trying to load the large file in
question.

'which emacs' is /usr/bin/emacs.

most-positive-fixnum gives

    1152921504606846975 (#o37777777777, #xffffffff)

Mike




Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list,
and to the gnu.emacs.bug news group.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:



If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/share/emacs/22.1/etc/DEBUG for instructions.


In GNU Emacs 22.1.1 (x86_64-redhat-linux-gnu, GTK+ Version 2.10.4)
 of 2007-08-23 on monk.karan.org
Windowing system distributor `The X.Org Foundation', version 11.0.10600000
configured using `configure  '--build=x86_64-redhat-linux-gnu'
'--host=x86_64-redhat-linux-gnu' '--target=x86_64-redhat-linux-gnu'
'--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr'
'--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc'
'--datadir=/usr/share' '--includedir=/usr/include'
'--libdir=/usr/lib64' '--libexecdir=/usr/libexec'
'--localstatedir=/var' '--sharedstatedir=/usr/com'
'--mandir=/usr/share/man' '--infodir=/usr/share/info' '--with-pop'
'--with-sound' '--with-gtk' 'build_alias=x86_64-redhat-linux-gnu'
'host_alias=x86_64-redhat-linux-gnu'
'target_alias=x86_64-redhat-linux-gnu' 'CFLAGS=-DMAIL_USE_LOCKF
-DSYSTEM_PURESIZE_EXTRA=16777216 -O2 -g -pipe -Wall
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Major mode: Mail

Minor modes in effect:
  shell-dirtrack-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent input:
<down-mouse-1> <mouse-1> M-x r e p o r t - e m a <tab>
<return> x x x <return> C-x 1 C-v C-v C-p C-x C-f /
n / d a t a 1 / b l a s t / d b / n r <return> y C-x
<escape> <escape> M-p M-p M-n C-a C-k C-g C-g M-x r
e p r t <backspace> <backspace> o r t - e m a <tab>
<return>

Recent messages:
Loading /usr/share/emacs/site-lisp/site-start.d/php-mode-init.el (source)...done
Loading /usr/share/emacs/site-lisp/site-start.d/po-mode-init.el (source)...done
Loading /usr/share/emacs/site-lisp/site-start.d/psgml-init.el (source)...done
Loading /usr/share/emacs/site-lisp/site-start.d/python-mode-init.el
(source)...done
Loading /usr/share/emacs/site-lisp/site-start.d/rpm-spec-mode-init.el
(source)...done
Loading emacsbug...done
Loading help-mode...done
File nr is large (4187MB), really open? (y or n)
byte-code: Maximum buffer size exceeded
next-history-element: Beginning of history; no preceding item
Quit [2 times]




On Thu, Mar 26, 2009 at 2:58 PM, Eli Zaretskii <eliz@gnu.org> wrote:
>> Date: Thu, 26 Mar 2009 10:50:35 -0500
>> From: Mike Coleman <tutufan@gmail.com>
>> Cc:
>>
>> I'm trying to open a large (between 4GB and 5GB) file on a x86-64
>> Linux box that has 64GB of RAM.  I'm getting the error message
>> "Maximum buffer size exceeded".
>
> Thank you for your report.  However, it lacks crucial info, because
> you didn't use "M-x report-emacs-bug RET" to submit it.  Please do
> that (and do it from the same version of Emacs where you get the error
> message), so that important aspects of your system and Emacs
> configuration will be reported and considered in resolving this
> problem.
>
> Next, please type "file `which emacs`" at the shell prompt on that
> machine, and tell what this command displays.
>
> Also, please type "M-: most-positive-fixnum RET" inside Emacs, and
> tell what it displays.
>