From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: "Mattias Engdegård" <mattias.engdegard@gmail.com>
Cc: martin rudalics <rudalics@gmx.at>, Eli Zaretskii <eliz@gnu.org>,
65726-done@debbugs.gnu.org
Subject: bug#65726: 29.1.50; Crash in regexp engine
Date: Thu, 21 Sep 2023 14:08:58 -0400 [thread overview]
Message-ID: <jwv34z7h07v.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <5882311F-DEAE-4220-B241-86367BF07E78@gmail.com> ("Mattias Engdegård"'s message of "Thu, 21 Sep 2023 19:23:45 +0200")
> So this is what prevented me from running with counts above 2**15 and
> debugging enabled for all these years...
Looks like it.
In any case, I pushed a variant of the last patch to `master` and
I think the case is now closed. We may want to revisit it, presumably
by really keeping track of the all visited nodes, but this seems to work
well for now and I'm confident that it is safe (regardless of the shape
of the bytecode, it should always terminate and it should never apply
the optimization if it's incorrect, and with the shape of the bytecode
we currently produce it does correctly apply the optimization in the cases
I checked).
Stefan
next prev parent reply other threads:[~2023-09-21 18:08 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-04 7:46 bug#65726: 29.1.50; Crash in regexp engine martin rudalics
2023-09-04 8:44 ` Mattias Engdegård
2023-09-04 12:12 ` Eli Zaretskii
2023-09-04 13:18 ` Mattias Engdegård
2023-09-04 13:26 ` Mattias Engdegård
2023-09-04 13:28 ` Eli Zaretskii
2023-09-04 15:47 ` Mattias Engdegård
2023-09-05 12:23 ` Mattias Engdegård
2023-09-05 13:08 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-05 13:50 ` Mattias Engdegård
2023-09-05 15:33 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-06 12:03 ` Mattias Engdegård
2023-09-09 15:55 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-09 16:34 ` Mattias Engdegård
2023-09-14 14:41 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-15 20:03 ` Mattias Engdegård
2023-09-15 22:20 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-16 3:45 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-16 10:49 ` Mattias Engdegård
2023-09-16 15:48 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-18 2:14 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-18 3:59 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-18 12:32 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-21 17:23 ` Mattias Engdegård
2023-09-21 18:08 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2023-09-23 11:56 ` Mattias Engdegård
2023-09-04 14:32 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-04 15:57 ` Eli Zaretskii
2023-09-04 17:12 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-10 7:50 ` Stefan Kangas
2023-09-10 7:55 ` Eli Zaretskii
2023-09-10 23:09 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-11 14:46 ` Stefan Kangas
2023-09-05 7:14 ` martin rudalics
2023-09-11 8:10 ` Mattias Engdegård
2023-09-11 13:41 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
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