Status: New
Owner: ----
Labels: Type-Defect Priority-Medium

New issue 137 by zulolox4...@gmail.com: Memory fault-coredump unix aix
http://code.google.com/p/vim/issues/detail?id=137

What steps will reproduce the problem?
1.Edit a text file with 25000 lignes, about 3200 chars length every line
2.Split the lines to have 1600 chars length every, using a command like:
  %s/word1, word2/word1,\r word2/
  where word1 and word2 exists on every line at the middle (about).
3.After, I had a Memory fault(coredump), the message :
  Vim: Caught deadly signal SEGV
  Vim: Finished.
  Memory fault(coredump)

What is the expected output?
  The lines of text file have 1600 chars length.

What do you see instead?
  Vim: Caught deadly signal SEGV
  Vim: Finished.
  Memory fault(coredump)

What version of the product are you using?
VIM - Vi IMproved 7.3 (2010 Aug 15, compiled Dec 11 2012 16:21:02)
Included patches: 1-754
Compiled by l1234u
Normal version without GUI.  Features included (+) or not (-):
-arabic +autocmd -balloon_eval -browse +builtin_terms +byte_offset +cindent
+clientserver +clipboard +cmdline_compl +cmdline_hist +cmdline_info +comments -conceal +cryptv -cscope +cursorbind +cursorshape +dialog_con +diff +digraphs
-dnd -ebcdic -emacs_tags +eval +ex_extra +extra_search -farsi +file_in_path
+find_in_path +float +folding -footer +fork() -gettext -hangul_input -iconv
+insert_expand +jumplist -keymap -langmap +libcall +linebreak +lispindent
+listcmds +localmap -lua +menu +mksession +modify_fname +mouse -mouseshape
-mouse_dec -mouse_gpm -mouse_jsbterm -mouse_netterm -mouse_sgr -mouse_sysmouse
-mouse_urxvt +mouse_xterm -multi_byte +multi_lang -mzscheme +netbeans_intg
+path_extra -perl +persistent_undo +postscript +printer -profile -python
-python3 +quickfix +reltime -rightleft -ruby +scrollbind +signs +smartindent
-sniff +startuptime +statusline -sun_workshop +syntax +tag_binary
+tag_old_static -tag_any_white -tcl +terminfo +termresponse +textobjects +title -toolbar +user_commands +vertsplit +virtualedit +visual +visualextra +viminfo
+vreplace +wildignore +wildmenu +windows +writebackup +X11 -xfontset -xim
+xsmp_interact +xterm_clipboard -xterm_save
   system vimrc file: "$VIM/vimrc"
     user vimrc file: "$HOME/.vimrc"
      user exrc file: "$HOME/.exrc"
  fall-back for $VIM: "/usr/local/share/vim"
Compilation: cc -qlanglvl=extc89 -c -I. -Iproto -DHAVE_CONFIG_H     -g
Linking:
cc -qlanglvl=extc89    -o vim       -lSM -lICE -lXt -lX11    -lm -lcurses

On what operating system?
Aix 6.1

Please provide any additional information below.
Using the debugging tool on Aix 6.1, dbx , vim binary and core dump the stack at the crash was:

[using memory image in core]
reading symbolic information ...

Segmentation fault in may_core_dump at line 3166 in file "os_unix.c"
3166 kill(getpid(), deadly_signal); /* Die using the signal we caught */
(dbx) where
may_core_dump(), line 3166 in "os_unix.c"
mch_exit(r = 1), line 3132 in "os_unix.c"
getout(exitval = 1), line 1478 in "main.c"
libdebug assertion "(framep->getGpr(STKP, &addr) == DB_SUCCESS && *nextStkpp == addr)" failed at line 1299 in file ../../../../../../../../../../../src/bos/usr/ccs/lib/libdbx/libdebug/modules/stackdebug/POWER/stackdb_FrameProgress.C
preserve_exit(), line 9134 in "misc1.c"
deathtrap(sigarg = 11), line 1097 in "os_unix.c"
(dbx)

Best regards !

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