[debian-users:07933] Re: emacs20 or emacs20-dl or emacs-dl-canna...

[sen_ml@xxxxxxxxxxx]

永田です。

At around Sat, 22 Aug 1998 14:50:14 +0900,
 Ryuichi Arafune <arafune@xxxxxxxxxxxxxxxxxxxxxxxxx> may have mentioned:

> 荒船です．
> えーっと．再現しません．
> 1) .Xdefaults, .Xresouce 削除
> 2) .emacs をこのメールあったものにおきかえる ．
> 
> でもちゃんとmew がつかえてます．
> このメールはそうして書いています．
> strace か何かでしらべてみたら?

とりあえず、strace emacs を動かしてみました。

emacs が落ちる場合は：

  stat("/usr/share/emacs20/site-lisp/mew/mew-summary.elc", {st_mode=S_IFREG|0644, st_size=47153, ...}) = 0
  open("/usr/share/emacs20/site-lisp/mew/mew-summary.elc", O_RDONLY) = 6
  stat("/usr/share/emacs20/site-lisp/mew/mew-summary.elc", {st_mode=S_IFREG|0644, st_size=47153, ...}) = 0
  stat("/usr/share/emacs20/site-lisp/mew/mew-summary.el", 0xbffff29c) = -1 ENOENT (No such file or directory)
  fcntl(6, F_GETFL)                       = 0 (flags O_RDONLY)
  fstat(6, {st_mode=S_IFREG|0644, st_size=47153, ...}) = 0
  mmap(0, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x4030b000
  lseek(6, 0, SEEK_CUR)                   = 0
  read(6, ";ELC\23\0\0\0\n;;; Compiled by s"..., 4096) = 4096
  read(6, "\"\33\r\" \"g\" mew-summary-goto"..., 4096) = 4096
  --- SIGSEGV (Segmentation fault) ---
  sigaction(SIGSEGV, {SIG_DFL}, {0x80baee0, [], SA_STACK|0x26bca0}) = 0
  getpgrp()                               = 296
  ioctl(0, TIOCGPGRP, [295])              = 0
  open("/home/sen/.[sorry-i-changed-this]", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 7
  close(7)                                = 0
  sigaction(SIGIO, {SIG_IGN}, {0x80c5320, [], SA_STACK|0x100690}) = 0
  sigprocmask(SIG_UNBLOCK, [SEGV], [SEGV]) = 0
  getpid()                                = 296
  kill(296, SIGSEGV)                      = 0
  --- SIGSEGV (Segmentation fault) ---
  +++ killed by SIGSEGV +++

という具合です。これは mew-summary.elc を読み込んでいる途中ではないで
しょうか？

参考のために、emacs が落ちない場合は：

  stat("/usr/share/emacs20/site-lisp/mew/mew-summary.elc", {st_mode=S_IFREG|0644, st_size=47153, ...}) = 0
  open("/usr/share/emacs20/site-lisp/mew/mew-summary.elc", O_RDONLY) = 6
  stat("/usr/share/emacs20/site-lisp/mew/mew-summary.elc", {st_mode=S_IFREG|0644, st_size=47153, ...}) = 0
  stat("/usr/share/emacs20/site-lisp/mew/mew-summary.el", 0xbffff29c) = -1 ENOENT (No such file or directory)
  fcntl(6, F_GETFL)                       = 0 (flags O_RDONLY)
  fstat(6, {st_mode=S_IFREG|0644, st_size=47153, ...}) = 0
  mmap(0, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40323000
  lseek(6, 0, SEEK_CUR)                   = 0
  read(6, ";ELC\23\0\0\0\n;;; Compiled by s"..., 4096) = 4096
  read(6, "\"\33\r\" \"g\" mew-summary-goto"..., 4096) = 4096
  read(6, "ive-p) (not (equal major-mode \'"..., 4096) = 4096
  read(6, "s matched to a regular expressio"..., 4096) = 4096
  read(6, "which you input.\nIf executed wi"..., 4096) = 4096
  read(6, "-toggle-disp-msg on mew-window-c"..., 4096) = 4096
  read(6, ")\n(defalias \'mew-summary-next "..., 4096) = 4096
  read(6, "\210)\201Y\0\16\v!\210\300\201Z\0"..., 4096) = 4096
  read(6, "buffer-other-window find-file-no"..., 4096) = 4096
  read(6, "ft-mode sit-for 0 mew-icon-p spe"..., 4096) = 4096
  read(6, "cuting %s ...\" apply call-proce"..., 4096) = 4096
  read(6, "f\305\230\203\32\0\16\6\24eb\210"..., 4096) = 2097
  read(6, "", 4096)                       = 0
  close(6)                                = 0
  munmap(0x40323000, 4096)                = 0

という感じです。

落ちる直前に 

  read(6, "\"\33\r\" \"g\" mew-summary-goto"..., 4096) = 4096

が成功しているようで、落ちた瞬間は 次の read() が呼び出される前なの
でしょうか？

-sen