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Abort when scrolling around images

From: David Kastrup
Subject: Abort when scrolling around images
Date: Sun, 20 Feb 2005 14:23:38 +0100
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux)

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
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 address@hidden mailing list.

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

Hello Kim,

when scrolling around a buffer with images, I managed to trigger the
following.  Unfortunately I was too stupid to take a screen shot
before switching to the debugger window, and you can imagine that the
aborted Emacs refused to redraw...

But maybe this is enough of a clue.  Most recent CVS version (half an
hour old or so).

I'll keep the dead process around for a while, but probably not longer
for more than a few hours.  But it would probably be reasonably easy
to generate a new one: it did not take that much moving around before
the crash occured.

(gdb) backtrace
#0  0x006e57e2 in _dl_sysinfo_int80 () from /lib/ld-linux.so.2
#1  0x00729c46 in kill () from /lib/tls/libc.so.6
#2  0x081122d2 in abort () at /home/tmp/emacs/src/emacs.c:456
#3  0x080997b0 in move_it_vertically_backward (it=0x218f, dy=0)
    at /home/tmp/emacs/src/xdisp.c:6370
#4  0x080a58cf in redisplay_window (window=150497548, just_this_one_p=1)
    at /home/tmp/emacs/src/xdisp.c:12277
#5  0x080a8261 in redisplay_window_1 (window=150497548)
    at /home/tmp/emacs/src/xdisp.c:10852
#6  0x08170044 in internal_condition_case_1 (
    bfun=0x80a8234 <redisplay_window_1>, arg=150497548, handlers=137517269, 
    hfun=0x809d940 <redisplay_window_error>) at /home/tmp/emacs/src/eval.c:1426
#7  0x080a948f in redisplay_internal (preserve_echo_area=0)
    at /home/tmp/emacs/src/xdisp.c:10474
#8  0x080a9d36 in redisplay_preserve_echo_area (from_where=2)
    at /home/tmp/emacs/src/xdisp.c:10633
#9  0x08089f3e in sit_for (sec=0, usec=0, reading=0, display=1, 
    initial_display=1) at /home/tmp/emacs/src/dispnew.c:6358
#10 0x08089fd3 in Fsit_for (seconds=0, milliseconds=0, nodisp=137490449)
    at /home/tmp/emacs/src/dispnew.c:6421
#11 0x08171c01 in Ffuncall (nargs=2, args=0xbfed8310)
    at /home/tmp/emacs/src/eval.c:2783
#12 0x0819a98f in Fbyte_code (bytestr=138060153, vector=1, 
---Type <return> to continue, or q <return> to quit---
    maxdepth=-1074953328) at /home/tmp/emacs/src/bytecode.c:686
#13 0x08171743 in funcall_lambda (fun=136607676, nargs=4, 
    arg_vector=0xbfed84d4) at /home/tmp/emacs/src/eval.c:2967
#14 0x08171aa2 in Ffuncall (nargs=5, args=0xbfed84d0)
    at /home/tmp/emacs/src/eval.c:2837
#15 0x0819a98f in Fbyte_code (bytestr=137724905, vector=4, 
    maxdepth=-1074953008) at /home/tmp/emacs/src/bytecode.c:686
#16 0x08171240 in Feval (form=137218520) at /home/tmp/emacs/src/eval.c:2130
#17 0x0817320a in Fcondition_case (args=137490449)
    at /home/tmp/emacs/src/eval.c:1332
#18 0x08199aad in Fbyte_code (bytestr=137724905, vector=143, 
    maxdepth=-1074952368) at /home/tmp/emacs/src/bytecode.c:864
#19 0x08171743 in funcall_lambda (fun=136606852, nargs=1, 
    arg_vector=0xbfed88f4) at /home/tmp/emacs/src/eval.c:2967
#20 0x08171aa2 in Ffuncall (nargs=2, args=0xbfed88f0)
    at /home/tmp/emacs/src/eval.c:2837
#21 0x0816e938 in Fcall_interactively (function=137648121, 
    record_flag=137490449, keys=137547324) at /home/tmp/emacs/src/callint.c:877
#22 0x081194cf in Fcommand_execute (cmd=137648121, record_flag=137490449, 
    keys=137490449, special=137490449) at /home/tmp/emacs/src/keyboard.c:9697
#23 0x08120155 in command_loop_1 () at /home/tmp/emacs/src/keyboard.c:1792
#24 0x0816ff52 in internal_condition_case (bfun=0x811fdfc <command_loop_1>, 
    handlers=137551441, hfun=0x8119ddc <cmd_error>)
---Type <return> to continue, or q <return> to quit---
    at /home/tmp/emacs/src/eval.c:1385
#25 0x08114886 in command_loop_2 () at /home/tmp/emacs/src/keyboard.c:1319
#26 0x0816fe61 in internal_catch (tag=0, func=0x8114868 <command_loop_2>, 
    arg=137490449) at /home/tmp/emacs/src/eval.c:1144
#27 0x08114695 in command_loop () at /home/tmp/emacs/src/keyboard.c:1298
#28 0x0811472f in recursive_edit_1 () at /home/tmp/emacs/src/keyboard.c:991
#29 0x0811482a in Frecursive_edit () at /home/tmp/emacs/src/keyboard.c:1052
#30 0x08113bb1 in main (argc=1, argv=0xbfed9124)
    at /home/tmp/emacs/src/emacs.c:1766
(gdb) xbacktrace

In GNU Emacs (i686-pc-linux-gnu, GTK+ Version 2.6.2)
 of 2005-02-20 on lola.goethe.zz
Distributor `The X.Org Foundation', version 11.0.60802000
configured using `configure '--prefix=/usr/local/emacs-21' '--with-gtk' 

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: en_US
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

Major mode: Change Log

Minor modes in effect:
  TeX-PDF-mode: t
  auto-compression-mode: t
  desktop-save-mode: t
  file-name-shadow-mode: t
  iswitchb-mode: t
  minibuffer-electric-default-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  line-number-mode: t
  transient-mark-mode: identity

Recent input:
<down-mouse-1> <mouse-movement> <mouse-movement> <drag-mouse-1> 
M-x r e p o r t - e m a c s - b u <tab> <return>

Recent messages:
Applying style hooks... done
Loading cc-mode...done
Loading info...
Loading tool-bar...done
Loading info...done
unzipping latex.info.gz...done
unzipping autoconf.info.gz...done
Desktop: File "/home/tmp/emacs/admin/.cvsignore" no longer exists.
Desktop: 26 buffers restored, 1 failed to restore.
Loading emacsbug...done

David Kastrup, Kriemhildstr. 15, 44793 Bochum

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