GNU bug report logs - #5819
23.1.93; OSX: start-process sometimes returns an unready process

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#5819: marked as done (23.1.93; OSX: start-process sometimes
 returns an unready process)
Date: Sat, 10 Apr 2010 10:35:01 +0000

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Your message dated Sat, 10 Apr 2010 19:34:03 +0900
with message-id <wl7hof38bo.wl%mituharu <at> math.s.chiba-u.ac.jp>
and subject line Re: bug#5819: 23.1.93; OSX: start-process sometimes returns an unready process
has caused the GNU bug report #5819,
regarding 23.1.93; OSX: start-process sometimes returns an unready process
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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From: Markus Triska <markus.triska <at> gmx.at>
To: bug-gnu-emacs <at> gnu.org
Subject: 23.1.93; OSX: start-process sometimes returns an unready process
Date: Thu, 01 Apr 2010 19:55:11 +0200

Let testprocess.el consist of the following form:

    (let (p (n 1))
      (while t
        (message "iteration %s" n)
        (setq n (1+ n)
              p (start-process "bc" nil "bc"))
        (process-send-string p "test")
        (delete-process p)))

On OSX 10.4, when I do "$ emacs -Q --script testprocess.el", I get:

   $ emacs -Q --script testprocess.el
   iteration 1
   iteration 2
   iteration 3
   writing to process: Input/output error, bc

and sometimes, particularly under high system load:

   $ emacs -Q --script testprocess.el
   iteration 1
   iteration 2
   Process bc not running

The number of iterations often varies over invocations.

In GNU Emacs 23.1.93.1 (i386-apple-darwin8.11.1)
 of 2010-04-01 on mt-computer.local
configured using `configure  '--without-x''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

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From: YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>
To: 5819-done <at> debbugs.gnu.org, 726-done <at> debbugs.gnu.org
Subject: Re: bug#5819: 23.1.93;
	OSX: start-process sometimes returns an unready process
Date: Sat, 10 Apr 2010 19:34:03 +0900

>>>>> On Fri, 09 Apr 2010 09:14:48 -0400, Stefan Monnier <monnier <at> IRO.UMontreal.CA> said:

>>>> The following simpler one seems to work for me on 10.4 (but not
>>>> on 10.3, again).  Could you test if it also works for you, with
>>>> respect to this problem and #726 (23.0.60; OSX: Complete OS
>>>> crash)?
>>> Your patch fixes both issues for me. Thank you very much!
>> Maintainers, which branch should I install this patch to?  Bug#726
>> is marked as important.

> I'd say emacs-23, Thank you,

Done.

				     YAMAMOTO Mitsuharu
				mituharu <at> math.s.chiba-u.ac.jp

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