GNU bug report logs - #2706
23.0.91; error "Buffer exceeds maximum size"

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From: Lars Ingebrigtsen <larsi@HIDDEN>
To: Jason Rumney <jasonr@HIDDEN>
Subject: Re: bug#2706: 23.0.91; error "Buffer exceeds maximum size"
References: <wna7i2ntjih.fsf@HIDDEN> <7b8wn0owgb.fsf@HIDDEN>
 <49C44551.10006@HIDDEN> <m3hb4jdlj3.fsf@HIDDEN>
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Lars Magne Ingebrigtsen <larsi@HIDDEN> writes:

> Jason Rumney <jasonr@HIDDEN> writes:
>
>> I have a copy of the files. The sizes are in bytes, there are 21
>> diffs. At first I couldn't reproduce the problem (I was using
>> ediff-buffers), but then I tried just ediff and saw the problem the
>> first time I tried it. But when I tried again running under the lisp
>> debugger,
>
> Is this issue still present in Emacs 23/24?

More information was requested, but no response was given within a few
years, so I'm closing this bug report.  If the problem still exists,
please reopen this bug report.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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From: Lars Magne Ingebrigtsen <larsi@HIDDEN>
To: Jason Rumney <jasonr@HIDDEN>
Subject: Re: bug#2706: 23.0.91; error "Buffer exceeds maximum size"
In-Reply-To: <49C44551.10006@HIDDEN> (Jason Rumney's message of "Sat, 21 Mar
	2009 09:39:29 +0800")
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Jason Rumney <jasonr@HIDDEN> writes:

> I have a copy of the files. The sizes are in bytes, there are 21
> diffs. At first I couldn't reproduce the problem (I was using
> ediff-buffers), but then I tried just ediff and saw the problem the
> first time I tried it. But when I tried again running under the lisp
> debugger,

Is this issue still present in Emacs 23/24?

-- 
(domestic pets only, the antidote for overdose, milk.)
  bloggy blog http://lars.ingebrigtsen.no/

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Cc: Glenn Morris <rgm@HIDDEN>, 2706 <at> debbugs.gnu.org
Subject: Re: bug#2706: 23.0.91; error "Buffer exceeds maximum size"
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Jason Rumney <jasonr@HIDDEN> wrote:

> I have a copy of the files. The sizes are in bytes, there are 21 diffs.
> At first I couldn't reproduce the problem (I was using ediff-buffers),
> but then I tried just ediff and saw the problem the first time I tried
> it. But when I tried again running under the lisp debugger, I could not
> reprod it suce the problem, and I have not managed to reproduce it
> since. There must have been some preconditions that the session in which
> I reproduced the problem met, but subsequent sessions do not.
>
> One unusual thing about the files is that the first lines specify
> compilation-mode and default directory. At first I could not run diff
> because the specified directory does not exist on my system, but after
> changing the default directory to a directory that exists (I tried the
> directory that the files are in and other directories) ediff works
> except in that one case.

Did you manage to debug further?  Could you send me a copy of the files?

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From: Glenn Morris <rgm@HIDDEN>
To: Jason Rumney <jasonr@HIDDEN>
Cc: 2706 <at> debbugs.gnu.org, Martin <nospam@HIDDEN>
Subject: Re: bug#2706: 23.0.91; error "Buffer exceeds maximum size"
References: <wna7i2ntjih.fsf@HIDDEN> <7b8wn0owgb.fsf@HIDDEN>
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Jason Rumney wrote:

> I have a copy of the files. The sizes are in bytes, there are 21 diffs. 
> At first I couldn't reproduce the problem (I was using ediff-buffers), 
> but then I tried just ediff and saw the problem the first time I tried 
> it. But when I tried again running under the lisp debugger, I could not 
> reprod it suce the problem, and I have not managed to reproduce it 
> since. There must have been some preconditions that the session in which 
> I reproduced the problem met, but subsequent sessions do not.

This was reported before (bug 837 and friends), and also could not be
reproduced that time.

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Subject: Re: bug#2706: 23.0.91; error "Buffer exceeds maximum size"
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Glenn Morris wrote:
>>   195500 03-17 09:01 templates-lese-fehler.txt
>>     3972 03-16 13:57 templates-keine-funktionale-aenderung.txt
>>     
>
> What units are these file sizes in? Is it possible that the size of
> the resulting diff is simply too large for Emacs?
>   

I have a copy of the files. The sizes are in bytes, there are 21 diffs. 
At first I couldn't reproduce the problem (I was using ediff-buffers), 
but then I tried just ediff and saw the problem the first time I tried 
it. But when I tried again running under the lisp debugger, I could not 
reprod it suce the problem, and I have not managed to reproduce it 
since. There must have been some preconditions that the session in which 
I reproduced the problem met, but subsequent sessions do not.

One unusual thing about the files is that the first lines specify 
compilation-mode and default directory. At first I could not run diff 
because the specified directory does not exist on my system, but after 
changing the default directory to a directory that exists (I tried the 
directory that the files are in and other directories) ediff works 
except in that one case.

Message received at 2706@HIDDEN:

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From: Glenn Morris <rgm@HIDDEN>
To: Martin <nospam@HIDDEN>
Cc: 2706 <at> debbugs.gnu.org
Subject: Re: bug#2706: 23.0.91; error "Buffer exceeds maximum size"
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Martin wrote:

>   ediff of text files containing contents of compilation buffers
>
>   the text files are available by private mail from 'parozusa at web dot de'

If you're just concerned about the size of the files (rather than
privacy), you can send them to 2706-quiet <at> debbugs.gnu.org.

They won't be sent out to the bug list, but we can download them from
the bug web-page.

>   195500 03-17 09:01 templates-lese-fehler.txt
>     3972 03-16 13:57 templates-keine-funktionale-aenderung.txt

What units are these file sizes in? Is it possible that the size of
the resulting diff is simply too large for Emacs?

>   Debugger entered--Lisp error: (error "Buffer exceeds maximum size")
>     call-process("diff" nil #<buffer *ediff-diff*> nil "u:/aemf/register-anbindung/templates-keine-funktionale-aenderung.txt" "u:/aemf/register-anbindung/templates-lese-fehler.txt")

And if you execute

diff u:/aemf/register-anbindung/templates-keine-funktionale-aenderung.txt
  u:/aemf/register-anbindung/templates-lese-fehler.txt

outside of Emacs, how big is the result?

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To: emacs-pretest-bug@HIDDEN
Subject: 23.0.91; error "Buffer exceeds maximum size"
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.91 (windows-nt)
Date: Wed, 18 Mar 2009 07:47:18 +0100
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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 emacs-pretest-bug@HIDDEN mailing list.

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

8<--------------------------------------------------------------------

  ediff of text files containing contents of compilation buffers

  the text files are available by private mail from 'parozusa at web dot de'

  195500 03-17 09:01 templates-lese-fehler.txt
    3972 03-16 13:57 templates-keine-funktionale-aenderung.txt

  backtrace:  

  Debugger entered--Lisp error: (error "Buffer exceeds maximum size")
    call-process("diff" nil #<buffer *ediff-diff*> nil "u:/aemf/register-anbindung/templates-keine-funktionale-aenderung.txt" "u:/aemf/register-anbindung/templates-lese-fehler.txt")
    apply(call-process "diff" nil #<buffer *ediff-diff*> nil ("u:/aemf/register-anbindung/templates-keine-funktionale-aenderung.txt" "u:/aemf/register-anbindung/templates-lese-fehler.txt"))
    ediff-exec-process("diff" #<buffer *ediff-diff*> synchronize "--binary" "u:/aemf/register-anbindung/templates-keine-funktionale-aenderung.txt" "u:/aemf/register-anbindung/templates-lese-fehler.txt")
    ediff-make-diff2-buffer(#<buffer *ediff-diff*> "u:/aemf/register-anbindung/templates-keine-funktionale-aenderung.txt" "u:/aemf/register-anbindung/templates-lese-fehler.txt")
    ediff-setup-diff-regions("u:/aemf/register-anbindung/templates-keine-funktionale-aenderung.txt" "u:/aemf/register-anbindung/templates-lese-fehler.txt" nil)
    ediff-setup(#<buffer templates-keine-funktionale-aenderung.txt> "u:/aemf/register-anbindung/templates-keine-funktionale-aenderung.txt" #<buffer templates-lese-fehler.txt> "u:/aemf/register-anbindung/templates-lese-fehler.txt" nil nil nil ((ediff-job-name . ediff-files)) nil)
    ediff-files-internal("u:/aemf/register-anbindung/templates-keine-funktionale-aenderung.txt" "u:/aemf/register-anbindung/templates-lese-fehler.txt" nil nil ediff-files)
    ediff("u:/aemf/register-anbindung/templates-keine-funktionale-aenderung.txt" "u:/aemf/register-anbindung/templates-lese-fehler.txt")
    call-interactively(ediff t nil)
    execute-extended-command(nil)
    call-interactively(execute-extended-command nil nil)

8<--------------------------------------------------------------------

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
y:/emacs/etc/DEBUG for instructions.


In GNU Emacs 23.0.91.1 (i386-mingw-nt5.1.2600)
 of 2009-02-27 on SOFT-MJASON
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4)'

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: DEU
  value of $XMODIFIERS: nil
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Debugger

Minor modes in effect:
  shell-dirtrack-mode: t
  tooltip-mode: t
  tool-bar-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
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
C-x d u : / a e m <tab> f / r e g <tab> <return> 1 
s t <return> <escape> < <down> <down> <down> f C-x 
b <return> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
<down> <down> <down> <down> <down> <down> <down> <down> 
f <escape> x <up> <escape> x e d i f <tab> <return> 
C-g C-x b <return> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <menu-bar> 
<options> <debug-on-error> <escape> x <up> <return> 
<return> t e m p l <tab> s - l <tab> <return> C-x h 
<escape> <escape> w <escape> x w r i t <tab> r e g 
<tab> <return> <up> <up> <up> C-a C-k u : / a e m f 
/ e m <tab> a <tab> - b a c h t r <backspace> <backspace> 
<backspace> k t r a c e . t x t <return> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <menu-bar> <help-menu> 
<send-emacs-bug-report>

Recent messages:
goto-history-element: Beginning of history; no preceding item
Quit [2 times]
Debug on Error enabled globally
Reading file u:/aemf/register-anbindung/templates-keine-funktionale-aenderung.txt ... 
Reading file u:/aemf/register-anbindung/templates-lese-fehler.txt ... 
Computing differences between templates-keine-funktionale-aenderung.txt and templates-lese-fehler.txt ...
Entering debugger...
Mark set [2 times]
Making completion list...
Wrote u:/aemf/emacs-memory-exhausted-backtrace.txt