GNU bug report logs - #7348
23.2.50; Emacs crashes on fast window resize with scrollbars on under OSX

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Package: emacs;

Reported by: Jakub Turski <yacoob <at> gmail.com>

Date: Sat, 6 Nov 2010 21:16:02 UTC

Severity: normal

Found in version 23.2.50

Done: Jan Djärv <jan.h.d <at> swipnet.se>

Bug is archived. No further changes may be made.

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Message #8 received at 7348 <at> debbugs.gnu.org (full text, mbox):

From: YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>
To: Jakub Turski <yacoob <at> gmail.com>
Cc: 7348 <at> debbugs.gnu.org
Subject: Re: bug#7348: 23.2.50;
	Emacs crashes on fast window resize with scrollbars on under OSX
Date: Sun, 07 Nov 2010 12:18:26 +0900

>>>>> On Sat, 6 Nov 2010 21:20:03 +0000, Jakub Turski <yacoob <at> gmail.com> said:

> Method to replicate:
> 1/ Compile recent OSX Emacs from 'emacs-23' branch
> 2/ Launch 'emacs -Q'
> 3/ Press: C-x 2
> 4/ Move your mouse to the corner of the frame, grab it, drag up,
> rescaling the vertically to minimum size

I tried this recipe with the *GTK+ build* compiled with
--enable-checking on Mac OS X 10.6.4, and I got the following
assertion failure:

.../src/xdisp.c:11515: Emacs fatal error: assertion failed: BUFFERP(w->buffer)

11511	  /* If showing the region, and mark has changed, we must redisplay
11512	     the whole window.  The assignment to this_line_start_pos prevents
11513	     the optimization directly below this if-statement.  */
11514	  if (((!NILP (Vtransient_mark_mode)
11515		&& !NILP (XBUFFER (w->buffer)->mark_active))
11516	       != !NILP (w->region_showing))
11517	      || (!NILP (w->region_showing)
11518		  && !EQ (w->region_showing,

The value of w->buffer was nil when the assertion failure occurred.

				     YAMAMOTO Mitsuharu
				mituharu <at> math.s.chiba-u.ac.jp
This bug report was last modified 14 years and 109 days ago.

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