From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Pierre Neidhardt Newsgroups: gmane.emacs.bugs Subject: bug#28329: 25.2; Eshell: 40M+ output: Stack overflow in regexp matcher Date: Sun, 05 Nov 2017 14:58:47 +0100 Message-ID: <87mv40omi0.fsf@gmail.com> References: <87lglxbg00.fsf@gmail.com> <87ziac5xsn.fsf@users.sourceforge.net> <87r2uwmf25.fsf@users.sourceforge.net> <87o9p1e1q1.fsf@users.sourceforge.net> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1509890354 21848 195.159.176.226 (5 Nov 2017 13:59:14 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 5 Nov 2017 13:59:14 +0000 (UTC) User-Agent: mu4e 0.9.18; emacs 25.3.1 Cc: 28329@debbugs.gnu.org To: Noam Postavsky Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Nov 05 14:59:10 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eBLSA-0005V9-Ah for geb-bug-gnu-emacs@m.gmane.org; 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Sun, 05 Nov 2017 05:58:49 -0800 (PST) Original-Received: from dhiov23k ([197.0.145.22]) by smtp.gmail.com with ESMTPSA id o70sm435072wrb.62.2017.11.05.05.58.48 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 05 Nov 2017 05:58:48 -0800 (PST) In-reply-to: <87o9p1e1q1.fsf@users.sourceforge.net> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:139458 Archived-At: Alright, I run into this again while emerging qtwebengine on Gentoo. Now I think about it, this is the only and systematic cause of the issue for me. I suspect that emerging / compiling Chrome or affiliated projects would also trigger the issue. This time I managed to save the output, 60M+ big. I tried to following - emacs -Q - M-x eshell - cat portage.output.log It took about 2 hours to complete! While it takes half a second to paste to the buffer. Damn! Eshell's filters are slow! :/ That being said, no issue doing that. So the output "saved after the fact" does not seem to produce the issue. -- Pierre Neidhardt Finagle's Seventh Law: The perversity of the universe tends toward a maximum.