GNU bug report logs - #844
23.0.60; ediff-merge-revision: Buffer exceeds maximum size

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From: help-debbugs <at> gnu.org (Emacs bug Tracking System)
To: Chong Yidong <cyd <at> stupidchicken.com>
Subject: bug#837: marked as done (23.0.60; ediff-merge-revision: Buffer 
 exceeds maximum size)

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Your message dated Tue, 02 Sep 2008 20:19:27 -0400
with message-id <871w026pyo.fsf <at> cyd.mit.edu>
and subject line Re: 23.0.60; ediff-merge-revision: Buffer exceeds maximum size
has caused the Emacs bug report #844,
regarding 23.0.60; ediff-merge-revision: Buffer exceeds maximum size
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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misconfiguration somewhere. Please contact don <at> donarmstrong.com
immediately.)


-- 
844: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=844
Emacs Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: "Lennart Borgman (gmail)" <lennart.borgman <at> gmail.com>
To: emacs-pretest-bug <at> gnu.org, Michael Kifer <kifer <at> cs.sunysb.edu>
Subject: 23.0.60; ediff-merge-revision: Buffer exceeds maximum size
Date: Sun, 31 Aug 2008 15:40:21 +0200

When I just made a checkout of Emacs from CVS I got a merge conflict
which I used ediff-revision to resolve. I then got the following back
trace when I did "wb" to save the corrected file:

Debugger entered--Lisp error: (error "Buffer exceeds maximum size")
  call-process("diff" nil #<buffer *ediff-custom-diff*> nil "-c"
"c:/DOCUME~1/LENNAR~1/LOCALS~1/Temp/ediff282470M"
"c:/ecvsnew/bld/emacs/src/w32term.c")
  apply(call-process "diff" nil #<buffer *ediff-custom-diff*> nil ("-c"
"c:/DOCUME~1/LENNAR~1/LOCALS~1/Temp/ediff282470M"
"c:/ecvsnew/bld/emacs/src/w32term.c"))
  ediff-exec-process("diff" #<buffer *ediff-custom-diff*> synchronize
"-c" "c:/DOCUME~1/LENNAR~1/LOCALS~1/Temp/ediff282470M"
"c:/ecvsnew/bld/emacs/src/w32term.c")
  ediff-compute-custom-diffs-maybe()
  ediff-save-buffer(nil)
  call-interactively(ediff-save-buffer nil nil)

Looking into ediff-custom-diff I can see there is some problem with ^M:

! 	emacs_event->part = scroll_bar_handle;
! 	y = 0;
! 	break;
        case SB_BOTTOM:
! 	emacs_event->part = scroll_bar_handle;
! 	y = top_range;
! 	break;
        case SB_THUMBTRACK:
        case SB_THUMBPOSITION:
! 	if (VERTICAL_SCROLL_BAR_TOP_RANGE (f, XINT (bar->height)) <= 0xffff)
            y = HIWORD (msg->msg.wParam);

! 	bar->dragging = Qt;

! 	emacs_event->part = scroll_bar_handle;



! 	/* "Silently" update current position.  */

! 	{

! 	  SCROLLINFO si;




This was with my patched version, but I do not think I have any patches
that comes in here:

In GNU Emacs 23.0.60.1 (i386-mingw-nt5.1.2600)
 of 2008-08-28 (patched)
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --cflags -Ic:/g/include'

[Message part 3 (message/rfc822, inline)]

From: Chong Yidong <cyd <at> stupidchicken.com>
To: "Lennart Borgman \(gmail\)" <lennart.borgman <at> gmail.com>
Cc: 844-done <at> debbugs.gnu.org
Subject: Re: 23.0.60; ediff-merge-revision: Buffer exceeds maximum size
Date: Tue, 02 Sep 2008 20:19:27 -0400

Are you able to reproduce this?

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