GNU bug report logs - #17748
"Stack overflow in regexp matcher" error when calling gnus-article-browse-html-article on certain emails

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Rainer M Krug <Rainer <at> krugs.de>
To: submit <at> debbugs.gnu.org (The Gnus Bugfixing Girls + Boys)
Subject: "Stack overflow in regexp matcher" error when calling
 gnus-article-browse-html-article on certain emails
Date: Tue, 10 Jun 2014 15:53:32 +0200

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

When running  gnus-article-browse-html-article  on certain emails, I get
the following error:

,----
| Debugger entered--Lisp error: (error "Stack overflow in regexp matcher")
|   re-search-forward("<meta\\s-+http-equiv=[\"']?content-type[\"']?\\s-+content=[\"']text/\\(\\sw+\\)\\(?:;\\s-*charset=\\(.+\\)\\)?[\"'][^>]*>" nil t)
|   mm-add-meta-html-tag((#<buffer  *mm*-948779> ("text/html" (charset . "UTF-8")) quoted-printable nil nil nil nil "html-body") "UTF-8" nil)
|   gnus-article-browse-html-parts((#("multipart/alternative" 0 21 (boundary "----=_Part_39782143_1162893180.1402406867575" buffer #<buffer  *mm*-814744> from "groups-noreply <at> linkedin.com" start nil)) (#<buffer  *mm*-829729> ("text/plain" (charset . "UTF-8")) quoted-printable nil ("inline") nil nil "text-body") (#<buffer  *mm*-948779> ("text/html" (charset . "UTF-8")) quoted-printable nil nil nil nil "html-body")) "From: The R Project for Statistical Computing <groups-noreply <at> linkedin.com>\nSubject: What makes R good and what makes R bad?\nTo: Rainer Krug <Rainer <at> krugs.de>\nDate: Tue, 10 Jun 2014 13:27:47 +0000 (UTC) (17 minutes, 55 seconds ago)")
|   gnus-article-browse-html-article(nil)
|   call-interactively(gnus-article-browse-html-article nil nil)
`----

I attach the email for reference.

Cheers,

Rainer

[Message part 2 (text/plain, attachment)]

[Message part 3 (text/plain, inline)]

Gnus v5.13
GNU Emacs 24.3.1 (x86_64-apple-darwin13.0.0, Carbon Version 1.6.0 AppKit 1265)
 of 2014-02-13 on Rainers-MacBook-Pro-2.local
200 news.gmane.org InterNetNews NNRP server INN 2.5.1 ready (posting ok)
101 Capability list:
VERSION 2
IMPLEMENTATION INN 2.5.1
AUTHINFO USER
HDR
LIST ACTIVE ACTIVE.TIMES DISTRIB.PATS HEADERS NEWSGROUPS OVERVIEW.FMT
OVER
POST
READER
.

-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa

Tel :       +33 - (0)9 53 10 27 44
Cell:       +33 - (0)6 85 62 59 98
Fax :       +33 - (0)9 58 10 27 44

Fax (D):    +49 - (0)3 21 21 25 22 44

email:      Rainer <at> krugs.de

Skype:      RMkrug

PGP: 0x0F52F982

[Message part 4 (application/pgp-signature, inline)]

Message #8 received at 17748 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Rainer M Krug <Rainer <at> krugs.de>
Cc: 17748 <at> debbugs.gnu.org
Subject: Re: bug#17748: "Stack overflow in regexp matcher" error when calling
 gnus-article-browse-html-article on certain emails
Date: Wed, 25 Jan 2017 18:40:06 +0100

Rainer M Krug <Rainer <at> krugs.de> writes:

> When running  gnus-article-browse-html-article  on certain emails, I get
> the following error:
>
> ,----
> | Debugger entered--Lisp error: (error "Stack overflow in regexp matcher")
> |   re-search-forward("<meta\\s-+http-equiv=[\"']?content-type[\"']?\\s-+content=[\"']text/\\(\\sw+\\)\\(?:;\\s-*charset=\\(.+\\)\\)?[\"'][^>]*>"
> | nil t)
> |   mm-add-meta-html-tag((#<buffer *mm*-948779> ("text/html" (charset
> | . "UTF-8")) quoted-printable nil nil nil nil "html-body") "UTF-8"
> | nil)

[...]

> I attach the email for reference.

I seem to be unable to reproduce the bug on master now.  Are you still
seeing this problem?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #17 received at 17748 <at> debbugs.gnu.org (full text, mbox):

From: Rainer M Krug <Rainer <at> krugs.de>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 17748 <at> debbugs.gnu.org
Subject: Re: bug#17748: "Stack overflow in regexp matcher" error when calling
 gnus-article-browse-html-article on certain emails
Date: Thu, 26 Jan 2017 10:28:04 +0100

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

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> Rainer M Krug <Rainer <at> krugs.de> writes:
>
>> When running  gnus-article-browse-html-article  on certain emails, I get
>> the following error:
>>
>> ,----
>> | Debugger entered--Lisp error: (error "Stack overflow in regexp matcher")
>> |   re-search-forward("<meta\\s-+http-equiv=[\"']?content-type[\"']?\\s-+content=[\"']text/\\(\\sw+\\)\\(?:;\\s-*charset=\\(.+\\)\\)?[\"'][^>]*>"
>> | nil t)
>> |   mm-add-meta-html-tag((#<buffer *mm*-948779> ("text/html" (charset
>> | . "UTF-8")) quoted-printable nil nil nil nil "html-body") "UTF-8"
>> | nil)
>
> [...]
>
>> I attach the email for reference.
>
> I seem to be unable to reproduce the bug on master now.  Are you still
> seeing this problem?

Thanks for looking into this.

Not recently. I am running

,----
| Gnus v5.13
| GNU Emacs 25.1.91.1 (x86_64-apple-darwin16.3.0, Carbon Version 157 AppKit 1504.76) of 2017-01-12
`----

But I will keep you posted if I see it again.

Thanks,

Rainer


-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany)

Tel :       +33 - (0)9 53 10 27 44
Cell:       +33 - (0)6 85 62 59 98
Fax :       +33 - (0)9 58 10 27 44

Fax (D):    +49 - (0)3 21 21 25 22 44

email:      Rainer <at> krugs.de

Skype:      RMkrug

PGP: 0x0F52F982

[signature.asc (application/pgp-signature, inline)]

Message #20 received at 17748 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Rainer M Krug <Rainer <at> krugs.de>
Cc: 17748 <at> debbugs.gnu.org
Subject: Re: bug#17748: "Stack overflow in regexp matcher" error when calling
 gnus-article-browse-html-article on certain emails
Date: Thu, 26 Jan 2017 15:22:15 +0100

Rainer M Krug <Rainer <at> krugs.de> writes:

> Not recently. I am running
>
> ,----
> | Gnus v5.13
> | GNU Emacs 25.1.91.1 (x86_64-apple-darwin16.3.0, Carbon Version 157
> | AppKit 1504.76) of 2017-01-12
> `----
>
> But I will keep you posted if I see it again.

OK; I'm closing this bug report, but please reopen (or post a new bug
report) if you see this again.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Message #25 received at 17748 <at> debbugs.gnu.org (full text, mbox):

From: npostavs <at> users.sourceforge.net
To: Rainer M Krug <Rainer <at> krugs.de>
Cc: 17748 <at> debbugs.gnu.org, Lars Ingebrigtsen <larsi <at> gnus.org>
Subject: Re: bug#17748: "Stack overflow in regexp matcher" error when calling
 gnus-article-browse-html-article on certain emails
Date: Thu, 26 Jan 2017 09:31:38 -0500

tags 17748 = fixed
close 17748 24.4
quit

Rainer M Krug <Rainer <at> krugs.de> writes:

> Lars Ingebrigtsen <larsi <at> gnus.org> writes:
>
>> Rainer M Krug <Rainer <at> krugs.de> writes:
>>
>>> When running  gnus-article-browse-html-article  on certain emails, I get
>>> the following error:
>>>
>>> ,----
>>> | Debugger entered--Lisp error: (error "Stack overflow in regexp matcher")
>>> |   re-search-forward("<meta\\s-+http-equiv=[\"']?content-type[\"']?\\s-+content=[\"']text/\\(\\sw+\\)\\(?:;\\s-*charset=\\(.+\\)\\)?[\"'][^>]*>"
>>> | nil t)
>>> |   mm-add-meta-html-tag((#<buffer *mm*-948779> ("text/html" (charset
>>> | . "UTF-8")) quoted-printable nil nil nil nil "html-body") "UTF-8"
>>> | nil)
>>
>> [...]
>>
>> I seem to be unable to reproduce the bug on master now.  Are you still
>> seeing this problem?
>
> Thanks for looking into this.
>
> Not recently. I am running
>
> ,----
> | Gnus v5.13
> | GNU Emacs 25.1.91.1 (x86_64-apple-darwin16.3.0, Carbon Version 157 AppKit 1504.76) of 2017-01-12
> `----

I believe this has been fixed by [1: 07dd2ea], which changed the regex
shown in the backtrace.  Closing, but feel free to reopen if you hit it
again.

1: 2013-09-17 10:21:24 +0000 07dd2ea47f58d35b34581401a09d7d842a35fbdf
  lisp/gnus/mm-decode.el (mm-add-meta-html-tag): Fix regexp matching meta tag

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