From: Paul Eggert <eggert@cs.ucla.edu>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Sven Joachim <svenjoac@gmx.de>, 8623@debbugs.gnu.org
Subject: bug#8623: 23.3.50; (woman "git-remote") crashes
Date: Fri, 06 May 2011 07:37:17 -0700 [thread overview]
Message-ID: <4DC4079D.7030709@cs.ucla.edu> (raw)
In-Reply-To: <8362pom8ww.fsf@gnu.org>
On 05/06/11 03:15, Eli Zaretskii wrote:
> Paul, could you please take a look at this? Could this be due to the
> same problems with GCC 4.6 optimizations you recently fixed on the
> trunk? If so, we may need similar changes on the release branch.
Yeowch. I don't have easy access to a Debian unstable host,
and even if I did, I don't relish the job of looking into the
details as to why it crashed.
That aliasing patch was motivated by two things:
(1) I had a smoking gun in which GCC 4.6.0 clearly generated code
that would crash Emacs, when Emacs was compiled in debugging mode.
(2) I had the strong suspicion that other aliasing problems
were elsewhere in Emacs, even when not debugging, and that it
would be very difficult to track them down.
I'd guess that we're seeing (2) here, but *proving* that could
be a lot of work.
How about if we do this instead: (A) merge the aliasing patch into
Emacs 23, (B) see if this works for Sven; (C) if it does,
commit it into the 23 branch. That should be less work than
proving that this is an instance of (2).
prev parent reply other threads:[~2011-05-06 14:37 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-05 20:09 bug#8623: 23.3.50; (woman "git-remote") crashes Sven Joachim
2011-05-05 20:44 ` Eli Zaretskii
2011-05-05 21:12 ` Sven Joachim
2011-05-06 10:15 ` Eli Zaretskii
2011-05-06 10:50 ` Sven Joachim
2011-05-06 12:36 ` Sven Joachim
2011-05-06 14:39 ` Stefan Monnier
2011-05-06 14:47 ` Paul Eggert
2011-05-08 11:50 ` Sven Joachim
2011-05-08 16:34 ` Paul Eggert
2011-05-08 17:42 ` Sven Joachim
2011-05-08 18:22 ` Paul Eggert
2011-05-08 19:02 ` Eli Zaretskii
2011-05-09 10:10 ` Eli Zaretskii
2011-05-09 15:09 ` Sven Joachim
2011-05-09 15:28 ` Eli Zaretskii
2011-05-08 19:27 ` Eli Zaretskii
2011-05-09 10:13 ` Eli Zaretskii
2011-05-07 11:32 ` Richard Stallman
2011-05-06 14:37 ` Paul Eggert [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4DC4079D.7030709@cs.ucla.edu \
--to=eggert@cs.ucla.edu \
--cc=8623@debbugs.gnu.org \
--cc=eliz@gnu.org \
--cc=svenjoac@gmx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).