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bug#3663: Return of Bug 653 in emacs-23.0.95, Mac OS X 10.5.7


From: Chong Yidong
Subject: bug#3663: Return of Bug 653 in emacs-23.0.95, Mac OS X 10.5.7
Date: Wed, 24 Jun 2009 16:58:37 -0400

Hi Adrian,

Could you check if your recent changes caused this regression?

Thanks.


Gilbert Harman <address@hidden> wrote:

> Same problem on two different iMacs

> Start emacs with no .emacs file.

> Trying to evaluate the following region hangs emacs.
> gdb output follows the expressions whose evaluation appears to have caused
> the problem.  I just tried the same thing again and the problem is
> repeatable.

> This went away for a while but is back for the latest pretest.

>  Gil

> ;;;  Common to all my platforms

> (setq white-background nil)
> (setq mac-allow-anti-aliasing nil)

> ;; colors
> ;;
> (add-to-list 'default-frame-alist '(foreground-color . "lightyellow"))
> (add-to-list 'default-frame-alist '(cursor-color . "Yellow3"))
> (add-to-list 'default-frame-alist
>            '(background-color . "black"))
> (set-face-background 'region "rgb:8/6/5")
> (set-face-foreground 'region "lightyellow")
> (set-face-foreground 'modeline "lightgoldenrod")
> (set-face-background 'modeline "gray21")
> (set-face-foreground 'highlight "lightyellow")
> (set-face-background 'highlight "yellow4")
> (set-face-foreground 'bold "white")
> (set-face-foreground 'italic "tan1")

> > cd emacs-23.0.95/src
> [GH-iMAC:~/emacs-23.0.95/src]
> gilbertharman% > gdb
> DISPLAY = /tmp/launch-s7HmhN/:0
> TERM = xterm-color
> Breakpoint 1 at 0x4730634
> Breakpoint 2 at 0xae89f: file sysdep.c, line 1142.
> (gdb) run
> Starting program:
> /Users/gilbertharman/emacs-23.0.95/nextstep/Emacs.app/Contents/MacOS/Emacs

> Reading symbols for shared libraries
> +++++++++..................................................................
> done
> Breakpoint 1 at 0x92948634
> Reading symbols for shared libraries ............ done
> Reading symbols for shared libraries . done
> Reading symbols for shared libraries .. done
> Reading symbols for shared libraries . done
> Reading symbols for shared libraries . done
> Reading symbols for shared libraries . done
> Reading symbols for shared libraries . done

> Program received signal EXC_BAD_ACCESS, Could not access memory.
> Reason: KERN_INVALID_ADDRESS at address: 0xc0000003
> 0x91da3684 in objc_msgSend ()
> (gdb) bt
> #0  0x91da3684 in objc_msgSend ()
> #1  0x001767e8 in ns_dumpglyphs_stretch (s=0xbfffe320) at nsterm.m:2972
> #2  0x00177115 in ns_draw_glyph_string (s=0xbfffe320) at nsterm.m:3043
> #3  0x00039bf5 in draw_glyphs (w=0x8bd2f0, x=334, row=0x20a3df0,
> area=TEXT_AREA, start=0, end=39, hl=DRAW_NORMAL_TEXT, overlaps=0) at
> xdisp.c:20546
> #4  0x0003ecbb in x_write_glyphs (start=0x2089c00, len=39) at xdisp.c:21955
> #5  0x00007a51 in update_window_line (w=0x8bd2f0, vpos=10,
> mouse_face_overwritten_p=0xbfffe7bc) at dispnew.c:4454
> #6  0x00008400 in update_window (w=0x8bd2f0, force_p=0) at dispnew.c:4310
> #7  0x00009b53 in update_window_tree (w=0x8bd2f0, force_p=0) at
> dispnew.c:4003
> #8  0x0000adb2 in update_frame (f=0x8bd170, force_p=0, inhibit_hairy_id_p=0)
> at dispnew.c:3930
> #9  0x0003690b in redisplay_internal (preserve_echo_area=<value temporarily
> unavailable, due to optimizations>) at xdisp.c:11876
> #10 0x0009f685 in read_char (commandflag=1, nmaps=2, maps=0xbfffefe0,
> prev_event=25165833, used_mouse_menu=0xbffff0d8, end_time=0x0) at
> keyboard.c:2707
> #11 0x000a2144 in read_key_sequence (keybuf=0xbffff198, bufsize=30,
> prompt=25165833, dont_downcase_last=0, can_return_switch_frame=1,
> fix_current_buffer=1) at keyboard.c:9460
> #12 0x000a466a in command_loop_1 () at keyboard.c:1642
> #13 0x00107d0d in internal_condition_case (bfun=0xa4430 <command_loop_1>,
> handlers=25205425, hfun=0x9a810 <cmd_error>) at eval.c:1512
> #14 0x00094198 in command_loop_2 () at keyboard.c:1359
> #15 0x00107bec in internal_catch (tag=-1073741821, func=0x94150
> <command_loop_2>, arg=25165833) at eval.c:1248
> #16 0x00093eee in command_loop () at keyboard.c:1338
> #17 0x00093fb2 in recursive_edit_1 () at keyboard.c:953
> #18 0x00094131 in Frecursive_edit () at keyboard.c:1015
> #19 0x00092a75 in main (argc=1, argv=0xbffff640) at emacs.c:1852





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