severity 292119 important
tags 292119 upstream fixed-upstream
quit
I can reproduce this bug very easily by launching an ediff session in a
maximized terminal (209x62) and then unmaximizing the terminal to return
to the default size (80x25). Using ediff-{previous,next}-difference
isn't necessary, and network latency is obviously not an issue since I'm
running this locally.
This bug is fixed in the upcoming Emacs 22 since I can't reproduce it
with my CVS version.
Here's the corresponding backtrace:
(gdb) bt
#0 abort () at /tmp/emacs21-21.4a/src/emacs.c:387
#1 0x0809e645 in cmcheckmagic () at /tmp/emacs21-21.4a/src/cm.c:130
#2 0x080a16a3 in write_glyphs (string=0xa7b01608, len=0) at
/tmp/emacs21-21.4a/src/term.c:1159
#3 0x08057a31 in update_frame_line (f=0x82ae140, vpos=24) at
/tmp/emacs21-21.4a/src/dispnew.c:5468
#4 0x08058bdb in update_frame (f=0x82ae140, force_p=0, inhibit_hairy_id_p=0)
at /tmp/emacs21-21.4a/src/dispnew.c:5133
#5 0x08075c90 in redisplay_internal (preserve_echo_area=Variable
"preserve_echo_area" is not available.
) at /tmp/emacs21-21.4a/src/xdisp.c:8877
#6 0x080762f7 in redisplay_preserve_echo_area (from_where=11) at
/tmp/emacs21-21.4a/src/xdisp.c:9067
#7 0x08175f72 in wait_reading_process_input (time_limit=30, microsecs=0,
read_kbd=268435455, do_display=1) at /tmp/emacs21-21.4a/src/process.c:2586
#8 0x08053ddc in sit_for (sec=30, usec=0, reading=1, display=1,
initial_display=0) at /tmp/emacs21-21.4a/src/dispnew.c:6240
#9 0x080ee5b0 in read_char (commandflag=1, nmaps=2, maps=0xafb59f40,
prev_event=405365804, used_mouse_menu=0xafb59fcc) at
/tmp/emacs21-21.4a/src/keyboard.c:2518
#10 0x080ef3c4 in read_key_sequence (keybuf=0xafb5a0a8, bufsize=30,
prompt=405365804, dont_downcase_last=0, can_return_switch_frame=1,
fix_current_buffer=1) at /tmp/emacs21-21.4a/src/keyboard.c:8214
#11 0x080f1349 in command_loop_1 () at /tmp/emacs21-21.4a/src/keyboard.c:1451
#12 0x08140ebb in internal_condition_case (bfun=0x80f1160 <command_loop_1>,
handlers=405462148, hfun=0x80e8d60 <cmd_error>) at
/tmp/emacs21-21.4a/src/eval.c:1267
#13 0x080e45f6 in command_loop_2 () at /tmp/emacs21-21.4a/src/keyboard.c:1245
#14 0x08140dd4 in internal_catch (tag=23, func=0x80e45d0 <command_loop_2>,
arg=405365804) at /tmp/emacs21-21.4a/src/eval.c:1030
#15 0x080e43c2 in command_loop () at /tmp/emacs21-21.4a/src/keyboard.c:1224
#16 0x080e4465 in recursive_edit_1 () at /tmp/emacs21-21.4a/src/keyboard.c:950
#17 0x080e45b1 in Frecursive_edit () at /tmp/emacs21-21.4a/src/keyboard.c:1006
#18 0x080e3589 in main (argc=3, argv=0xafb5a754, envp=0xafb5a764) at
/tmp/emacs21-21.4a/src/emacs.c:1547
(gdb) fr 1
#1 0x0809e645 in cmcheckmagic () at /tmp/emacs21-21.4a/src/cm.c:130
130 abort ();
(gdb) l
125 cmcheckmagic ()
126 {
127 if (curX == FrameCols)
128 {
129 if (!MagicWrap || curY >= FrameRows - 1)
130 abort ();
131 if (termscript)
132 putc ('\r', termscript);
133 putchar ('\r');
134 if (termscript)
(gdb)
--
,''`.
: :' : Romain Francoise <[EMAIL PROTECTED]>
`. `' http://people.debian.org/~rfrancoise/
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