From: Dmitry Gutov <dgutov@yandex.ru>
To: lee <lee@yagibdah.de>
Cc: 20703@debbugs.gnu.org
Subject: bug#20703: 24.4; Stack overflow in regexp matcher
Date: Mon, 1 Jun 2015 21:45:13 +0300 [thread overview]
Message-ID: <556CA839.1090402@yandex.ru> (raw)
In-Reply-To: <87lhg31f38.fsf@heimdali.yagibdah.de>
Please keep the bug address in Cc.
On 06/01/2015 09:03 PM, lee wrote:
>> What if you try `M-x find-tag'?
>
> That works.
What if you type `M-x find-tag TAB' (to ask Emacs for all available tags)?
> I cut off roughly the bottom half of the TAGS file and tried again. With
> that, I'm getting the error when progress is at 85% instead of
> 42%. Cutting off the bottom half again, leaving about 1/4 of the
> original file, does not yield an error and says no matching tags were
> found.
The idea was to split the file in half, and do a sort of binary search.
E.g., try cutting off the top half in the first step now.
> So I guess the problem might have to do with the size of the TAGS file
> ...
Not necessarily. The TAGS file is parsed sequentially, without recursion
in the Lisp code.
In all likelihood, there is a problematic line around 42% of the
original TAGS, and the error goes away when that line is not in the file
anymore.
We need to know that line to fix the bug.
next prev parent reply other threads:[~2015-06-01 18:45 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-31 16:46 bug#20703: 24.4; Stack overflow in regexp matcher lee
2015-05-31 22:26 ` Dmitry Gutov
[not found] ` <87lhg31f38.fsf@heimdali.yagibdah.de>
2015-06-01 18:45 ` Dmitry Gutov [this message]
2015-06-02 21:10 ` lee
2015-06-03 0:58 ` Dmitry Gutov
2015-06-01 14:10 ` Stefan Monnier
2015-06-02 21:26 ` lee
2015-06-03 0:46 ` Stefan Monnier
2015-06-03 14:46 ` Eli Zaretskii
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