GNU bug report logs - #21402
race condition with compile mode line number parser

Previous Next

Full log

View this message in rfc822 format

From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
Subject: bug#21402: closed (Re: bug#21402: race condition with compile
 mode line number parser)
Date: Fri, 18 Oct 2019 08:12:02 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#21402: race condition with compile mode line number parser

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 21402 <at> debbugs.gnu.org.

-- 
21402: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21402
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
To: 21402-done <at> debbugs.gnu.org
Subject: Re: bug#21402: race condition with compile mode line number parser
Date: Fri, 18 Oct 2019 16:11:27 +0800

Seems OK now.

[Message part 3 (message/rfc822, inline)]

From: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
To: bug-gnu-emacs <bug-gnu-emacs <at> gnu.org>
Subject: race condition with compile mode line number parser
Date: Wed, 02 Sep 2015 08:54:18 +0800

There is a race condition, whereas for me of
(compile "seq 99|perl -nwle 'print \"XX:$.:$_\"'" nil)
(compile "seq 999|perl -nwle 'print \"XX:$.:$_\"'" nil)
(compile "seq 9999|perl -nwle 'print \"XX:$.:$_\"'" nil)
the first and third ones complete with no problems,
whereas the middle one always stops at

XX:392:392
XX:393
Compilation finished at Wed Sep  2 08:46:23

(compile "perl -wle 'for(1..999){print \"XX:$_:$_\"}'" nil)
however finishes fine, as does plain
(compile "seq 999" nil) and
(compile "seq 999|perl -nwle 'print \"XX:$.:$_\"'; sleep 1" nil)

When I try it as root all finish fine.

Further notes: I was able to reproduce this on another machine via
doing C-x ESC ESC and pasting
(compile "seq 999|perl -nwle 'print \"XX:$.:$_\"'" nil)
at the Redo: prompt.

If one just puts the cursor at the end of that line in this message
and hits C-x C-e that will not reproduce the problem. Nor if one does
ESC : and pastes it in there either.

Note also there is two messages piling themselves on top of each
other, Compilation finished, and Find this error in (default XX): ...

My .emacs is in http://jidanni.org/comp/configuration/

emacs-version "24.5.1", Debian emacs24 24.5+1-1.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.