From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: npostavs@users.sourceforge.net Newsgroups: gmane.emacs.bugs Subject: bug#28329: 25.2; Eshell: 40M+ output: Stack overflow in regexp matcher Date: Sat, 02 Sep 2017 08:30:01 -0400 Message-ID: <873785706u.fsf@users.sourceforge.net> References: <87lglxbg00.fsf@gmail.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1504355376 17969 195.159.176.226 (2 Sep 2017 12:29:36 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sat, 2 Sep 2017 12:29:36 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2.50 (gnu/linux) Cc: 28329@debbugs.gnu.org To: Pierre Neidhardt Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sat Sep 02 14:29:22 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 1do7Xy-0003Rm-Ei for geb-bug-gnu-emacs@m.gmane.org; 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Sat, 02 Sep 2017 05:28:19 -0700 (PDT) Original-Received: from zony ([45.2.119.49]) by smtp.googlemail.com with ESMTPSA id i129sm1338379iti.0.2017.09.02.05.28.19 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sat, 02 Sep 2017 05:28:19 -0700 (PDT) In-Reply-To: <87lglxbg00.fsf@gmail.com> (Pierre Neidhardt's message of "Sat, 02 Sep 2017 10:34:55 +0100") 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:136467 Archived-At: Pierre Neidhardt writes: > Today I update my Gentoo: > > > emerge --update --newuse --deep @world > > in Eshell. After a very long output (40M+), the shell started stuttering and hanging, messaging the following errors on every new line of output: > > error in process filter: eshell-watch-for-password-prompt: Stack overflow in regexp matcher > error in process filter: Stack overflow in regexp matcher > > The process became so slow it was unlikely it would ever complete, so I terminated it and had to re-run it in a *term*. Can you get a backtrace if you M-x toggle-debug-on-error? It would be helpful to get a sample of output which triggers this. Does changing the password regexp help? (setq eshell-password-prompt-regexp (format "^.\\{,80\\}%s.\\{,80\\}:\\s-*\\'" (regexp-opt password-word-equivalents)))