Re: Ediff frequently crashes emacs.

[Peter Seibel]

address@hidden (Kim F. Storm) writes:

> What happens if you don't use byte-compiled ediff? Try adding this
> to your .emacs and rerun the test:
>
> (load "ediff-init.el")
> (load "ediff-diff.el")

So, by chance or not, it crashed almost right away after I started
using ediff with those two lines in my .emacs.

address@hidden src]$ gdb emacs
GNU gdb Red Hat Linux (5.1.90CVS-5)
Copyright 2002 Free Software Foundation, Inc.
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There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-redhat-linux"...
DISPLAY = :0
TERM = xterm
Breakpoint 1 at 0x80d50da: file emacs.c, line 457.
Breakpoint 2 at 0x80b920c: file xterm.c, line 7778.
(gdb) run
Starting program: /usr2/cvs/emacs/src/emacs -geometry 80x40+0+0

Program exited normally.
(gdb) run
Starting program: /usr2/cvs/emacs/src/emacs -geometry 80x40+0+0

Program received signal SIGSEGV, Segmentation fault.
x_catch_errors_unwind (old_val=137240633) at xterm.c:7514
7514      Display *dpy = XSAVE_VALUE (first)->pointer;
(gdb) bt
#0  x_catch_errors_unwind (old_val=137240633) at xterm.c:7514
#1  0x08130317 in unbind_to (count=63, value=137240609) at eval.c:3146
#2  0x08154749 in Fbyte_code (bytestr=135923915, vector=135924068, maxdepth=5)
    at bytecode.c:885
#3  0x0812feaf in funcall_lambda (fun=135923876, nargs=2, 
    arg_vector=0xbfffd444) at eval.c:2974
#4  0x0812fa85 in Ffuncall (nargs=3, args=0xbfffd440) at eval.c:2843
#5  0x08154208 in Fbyte_code (bytestr=135923227, vector=135923596, maxdepth=7)
    at bytecode.c:686
#6  0x0812feaf in funcall_lambda (fun=135923196, nargs=1, 
    arg_vector=0xbfffd564) at eval.c:2974
#7  0x0812fa85 in Ffuncall (nargs=2, args=0xbfffd560) at eval.c:2843
#8  0x08154208 in Fbyte_code (bytestr=135923227, vector=135923596, maxdepth=7)
    at bytecode.c:686
#9  0x0812feaf in funcall_lambda (fun=135923196, nargs=1, 
    arg_vector=0xbfffd684) at eval.c:2974
#10 0x0812fa85 in Ffuncall (nargs=2, args=0xbfffd680) at eval.c:2843
#11 0x08154208 in Fbyte_code (bytestr=135923227, vector=135923596, maxdepth=7)
    at bytecode.c:686
#12 0x0812feaf in funcall_lambda (fun=135923196, nargs=1, 
    arg_vector=0xbfffd7a4) at eval.c:2974
#13 0x0812fa85 in Ffuncall (nargs=2, args=0xbfffd7a0) at eval.c:2843
#14 0x08154208 in Fbyte_code (bytestr=135922955, vector=135922980, maxdepth=2)
    at bytecode.c:686
#15 0x0812feaf in funcall_lambda (fun=135922916, nargs=1, 
    arg_vector=0xbfffd934) at eval.c:2974
#16 0x0812fa85 in Ffuncall (nargs=2, args=0xbfffd930) at eval.c:2843
#17 0x0812f262 in Fapply (nargs=2, args=0xbfffd930) at eval.c:2232
#18 0x0812f69b in apply1 (fn=135922916, arg=146168501) at eval.c:2545
#19 0x0812f13f in Feval (form=146168605) at eval.c:2188
#20 0x0812cc27 in Fprogn (args=146168613) at eval.c:408
#21 0x0812fe82 in funcall_lambda (fun=146168629, nargs=2, 
    arg_vector=0xbfffdae4) at eval.c:2967
#22 0x0812fa85 in Ffuncall (nargs=3, args=0xbfffdae0) at eval.c:2843
#23 0x0812f36b in Fapply (nargs=2, args=0xbfffdb70) at eval.c:2284
#24 0x0812f69b in apply1 (fn=146168629, arg=148206029) at eval.c:2545
#25 0x0812f13f in Feval (form=148206021) at eval.c:2188
#26 0x0812ef85 in Feval (form=148205757) at eval.c:2117
#27 0x0812f148 in Feval (form=148206005) at eval.c:2188
#28 0x0812f148 in Feval (form=146458245) at eval.c:2188
#29 0x0812d7e9 in Flet (args=146458573) at eval.c:970
#30 0x0812eeb2 in Feval (form=146458229) at eval.c:2079
#31 0x0812cc27 in Fprogn (args=146456701) at eval.c:408
#32 0x0812fe82 in funcall_lambda (fun=146456709, nargs=3, 
    arg_vector=0xbfffe030) at eval.c:2967
#33 0x0812fbc2 in apply_lambda (fun=146456709, args=146457965, eval_flag=1)
    at eval.c:2896
#34 0x0812f163 in Feval (form=146457941) at eval.c:2190
#35 0x0812cc27 in Fprogn (args=146457989) at eval.c:408
#36 0x0812eeb2 in Feval (form=146457933) at eval.c:2079
#37 0x0812cad0 in For (args=146457861) at eval.c:304
#38 0x0812eeb2 in Feval (form=146457829) at eval.c:2079
#39 0x0812cc27 in Fprogn (args=146458141) at eval.c:408
#40 0x0812fe82 in funcall_lambda (fun=146458149, nargs=1, 
    arg_vector=0xbfffe3c0) at eval.c:2967
#41 0x0812fbc2 in apply_lambda (fun=146458149, args=146458869, eval_flag=1)
    at eval.c:2896
#42 0x0812f163 in Feval (form=146458861) at eval.c:2190
#43 0x0812cc27 in Fprogn (args=146458853) at eval.c:408
#44 0x0812d886 in Flet (args=146463213) at eval.c:986
#45 0x0812eeb2 in Feval (form=146464725) at eval.c:2079
#46 0x0812cad0 in For (args=146464685) at eval.c:304
#47 0x0812eeb2 in Feval (form=146464653) at eval.c:2079
#48 0x0812cc27 in Fprogn (args=146464469) at eval.c:408
#49 0x0812fe82 in funcall_lambda (fun=146458901, nargs=2, 
    arg_vector=0xbfffe7e0) at eval.c:2967
#50 0x0812fbc2 in apply_lambda (fun=146458901, args=146459565, eval_flag=1)
    at eval.c:2896
#51 0x0812f163 in Feval (form=146459557) at eval.c:2190
#52 0x0812cb64 in Fif (args=146459549) at eval.c:356
#53 0x0812eeb2 in Feval (form=146459165) at eval.c:2079
#54 0x0812cc27 in Fprogn (args=146457629) at eval.c:408
#55 0x0812cbeb in Fcond (args=146457637) at eval.c:385
#56 0x0812eeb2 in Feval (form=146458957) at eval.c:2079
#57 0x0812cc27 in Fprogn (args=146457749) at eval.c:408
#58 0x0812fe82 in funcall_lambda (fun=146457757, nargs=1, 
    arg_vector=0xbfffec14) at eval.c:2967
#59 0x0812fa85 in Ffuncall (nargs=2, args=0xbfffec10) at eval.c:2843
#60 0x08154208 in Fbyte_code (bytestr=140592611, vector=141034892, maxdepth=6)
    at bytecode.c:686
#61 0x0812feaf in funcall_lambda (fun=141380284, nargs=1, 
    arg_vector=0xbfffed34) at eval.c:2974
#62 0x0812fa85 in Ffuncall (nargs=2, args=0xbfffed30) at eval.c:2843
#63 0x08154208 in Fbyte_code (bytestr=140174891, vector=139842108, maxdepth=3)
    at bytecode.c:686
#64 0x0812feaf in funcall_lambda (fun=140237572, nargs=0, 
    arg_vector=0xbfffee44) at eval.c:2974
#65 0x0812fa85 in Ffuncall (nargs=1, args=0xbfffee40) at eval.c:2843
#66 0x08154208 in Fbyte_code (bytestr=141567379, vector=141568844, maxdepth=5)
    at bytecode.c:686
#67 0x0812feaf in funcall_lambda (fun=141569308, nargs=0, 
    arg_vector=0xbfffef64) at eval.c:2974
#68 0x0812fa85 in Ffuncall (nargs=1, args=0xbfffef60) at eval.c:2843
#69 0x08154208 in Fbyte_code (bytestr=141592603, vector=141599876, maxdepth=5)
    at bytecode.c:686
#70 0x0812feaf in funcall_lambda (fun=141600236, nargs=2, 
    arg_vector=0xbffff084) at eval.c:2974
#71 0x0812fa85 in Ffuncall (nargs=3, args=0xbffff080) at eval.c:2843
#72 0x08154208 in Fbyte_code (bytestr=141592683, vector=141600372, maxdepth=3)
    at bytecode.c:686
#73 0x0812feaf in funcall_lambda (fun=141600628, nargs=1, 
    arg_vector=0xbffff1c4) at eval.c:2974
#74 0x0812fa85 in Ffuncall (nargs=2, args=0xbffff1c0) at eval.c:2843
#75 0x0812c5a1 in Fcall_interactively (function=141549721, 
    record_flag=137240609, keys=137299580) at callint.c:884
#76 0x080e1d39 in Fcommand_execute (cmd=141549721, record_flag=137240609, 
    keys=137240609, special=137240609) at keyboard.c:9706
#77 0x080d87bd in command_loop_1 () at keyboard.c:1796
#78 0x0812dfd2 in internal_condition_case (bfun=0x80d7a58 <command_loop_1>, 
    handlers=137304041, hfun=0x80d75fc <cmd_error>) at eval.c:1385
#79 0x080d78e2 in command_loop_2 () at keyboard.c:1323
#80 0x0812db3f in internal_catch (tag=137297257, 
    func=0x80d78c4 <command_loop_2>, arg=137240609) at eval.c:1144
#81 0x080d7871 in command_loop () at keyboard.c:1302
#82 0x080d73bb in recursive_edit_1 () at keyboard.c:995
    arg_vector=0xbffff084) at eval.c:2974
#71 0x0812fa85 in Ffuncall (nargs=3, args=0xbffff080) at eval.c:2843
#72 0x08154208 in Fbyte_code (bytestr=141592683, vector=141600372, maxdepth=3)
    at bytecode.c:686
#73 0x0812feaf in funcall_lambda (fun=141600628, nargs=1, 
    arg_vector=0xbffff1c4) at eval.c:2974
#74 0x0812fa85 in Ffuncall (nargs=2, args=0xbffff1c0) at eval.c:2843
#75 0x0812c5a1 in Fcall_interactively (function=141549721, 
    record_flag=137240609, keys=137299580) at callint.c:884
#76 0x080e1d39 in Fcommand_execute (cmd=141549721, record_flag=137240609, 
    keys=137240609, special=137240609) at keyboard.c:9706
#77 0x080d87bd in command_loop_1 () at keyboard.c:1796
#78 0x0812dfd2 in internal_condition_case (bfun=0x80d7a58 <command_loop_1>, 
    handlers=137304041, hfun=0x80d75fc <cmd_error>) at eval.c:1385
#79 0x080d78e2 in command_loop_2 () at keyboard.c:1323
#80 0x0812db3f in internal_catch (tag=137297257, 
    func=0x80d78c4 <command_loop_2>, arg=137240609) at eval.c:1144
#81 0x080d7871 in command_loop () at keyboard.c:1302
#82 0x080d73bb in recursive_edit_1 () at keyboard.c:995
---Type <return> to continue, or q <return> to quit---
#83 0x080d74e3 in Frecursive_edit () at keyboard.c:1056
#84 0x080d637b in main (argc=3, argv=0xbffff984) at emacs.c:1767
#85 0x42017499 in __libc_start_main () from /lib/i686/libc.so.6
(gdb) xbacktrace
"backquote-listify"
"backquote-process"
"backquote-process"
"backquote-process"
0x81a04e4 PVEC_COMPILED
"`"
0x8b65b35 Lisp type 5
"ediff-get-difference"
"aref"
"ediff-get-fine-diff-vector-from-diff-record"
"ediff-get-fine-diff-vector"
"let"
"ediff-set-fine-diff-properties-in-one-buffer"
"progn"
"or"
"ediff-set-fine-diff-properties"
"let"
"or"
"ediff-make-fine-diffs"
"if"
"cond"
"ediff-install-fine-diff-if-necessary"
"ediff-select-difference"
"ediff-restore-highlighting"
"ediff-recenter"
"ediff-diff-to-diff"
"ediff-copy-A-to-B"
"call-interactively"
(gdb) 

-- 
Peter Seibel                                     address@hidden

         Lisp is the red pill. -- John Fraser, comp.lang.lisp