Package: emacs23
Version: 23.2+1-7
Severity: important

I'm editing literate Haskell files (.lhs) using latex-haskell.el:

;; Author: Dave Love <[email protected]>
;; Keywords: languages, wp
;; Created: Sept 2003
;; $Revision: 1.8 $
;; URL: http://www.loveshack.ukfsn.org/emacs

It also requires Dave's multi-mode.el:

;; Author: Dave Love <[email protected]>
;; Keywords: languages, extensions, files
;; Created: Sept 2003
;; $Revision: 1.13 $
;; URL: http://www.loveshack.ukfsn.org/emacs

Unfortunately, there are problems, the most notable of which is
kill-line, when performed twice in succession (as C-k C-k) often
(though not all the time) crashes emacs.  This usually happens when
the line being killed occurs just before an \end{code} line.  It might
be to do with using indirect buffers, but I really don't know for
certain.

I've caught a core from a crash, but as the debugging symbols are not
available, the backtrace output is probably not very useful:

#0  0x00007f5c39e67447 in kill () from /lib/libc.so.6
#1  0x00000000004e4761 in ?? ()
#2  <signal handler called>
#3  0x00007f5c39e67447 in kill () from /lib/libc.so.6
#4  0x00000000004e27a5 in abort ()
#5  0x0000000000512e6c in ?? ()
#6  0x0000000000443150 in ?? ()
#7  0x0000000000444991 in ?? ()
#8  0x000000000044ac59 in ?? ()
#9  0x000000000044d93b in ?? ()
#10 0x000000000044faf7 in ?? ()
#11 0x00000000005598d7 in ?? ()
#12 0x0000000000451852 in ?? ()
#13 0x00000000004f1f9d in ?? ()
#14 0x00000000004f4795 in ?? ()
#15 0x00000000004f6c50 in ?? ()
#16 0x0000000000559a3f in ?? ()
#17 0x00000000004ef5be in ?? ()
#18 0x0000000000559b6a in ?? ()
#19 0x00000000004effe1 in ?? ()
#20 0x00000000004f03ba in ?? ()
#21 0x00000000004f04f7 in ?? ()
#22 0x00000000004e391c in ?? ()
#23 0x00007f5c39e53c4d in __libc_start_main () from /lib/libc.so.6
#24 0x0000000000413aa9 in ?? ()
#25 0x00007fffb2306098 in ?? ()
#26 0x000000000000001c in ?? ()
#27 0x0000000000000001 in ?? ()
#28 0x00007fffb23079a2 in ?? ()
#29 0x0000000000000000 in ?? ()

(And the core in 23 MB, so you may well not want me to send it.)

I have no clue where to begin trying to debug this thing :-(

   Julian



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