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[2a01:4f8:c010:9ea2::1]) by smtp.gmail.com with ESMTPSA id 11-20020a05600c268b00b003a03a8475bfsm9924721wmt.16.2022.06.26.10.12.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 26 Jun 2022 10:12:09 -0700 (PDT) Received: by athena.silentflame.com (Postfix, from userid 1000) id E62391B6300; Sun, 26 Jun 2022 17:12:08 +0000 (UTC) From: Sean Whitton <spwhitton@HIDDEN> To: Jim Porter <jporterbugs@HIDDEN>, Eli Zaretskii <eliz@HIDDEN>, Ken Brown <kbrown@HIDDEN> Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin In-Reply-To: <dfd80016-eeb3-82e3-2de6-c7bb34d07cbe@HIDDEN> References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> <e14c3b37-fa3d-7793-d6f4-5f2b7f29ea70@HIDDEN> <040b3a36-459b-a94d-f879-7f45aac50bda@HIDDEN> <83sfnud26o.fsf@HIDDEN> <96e47ba7-efaa-b6df-dd98-60f09068e68c@HIDDEN> <874k097lbh.fsf@HIDDEN> <dfd80016-eeb3-82e3-2de6-c7bb34d07cbe@HIDDEN> User-Agent: Notmuch/0.36 Emacs/29.0.50 (x86_64-pc-linux-gnu) Date: Sun, 26 Jun 2022 10:12:08 -0700 Message-ID: <8735frmjrr.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain X-ua-ms: gsuite X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 56025 Cc: larsi@HIDDEN, 56025 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) Hello, On Fri 24 Jun 2022 at 04:03pm -07, Jim Porter wrote: > When [EOF is] received, all the bytes waiting to be read are > immediately passed to the process without waiting for a <newline>, and > the EOF is discarded. Thus, if there are no bytes waiting (that is, > the EOF occurred at the beginning of a line), a byte count of zero > shall be returned from the read(), representing an end-of-file > indication. > > I interpret that to mean that the preferred way to indicate end-of-file > to `rev' in this case is to send it "hi [NL] [EOF]". The second EOF that > Eshell sends when closing the stderr output handle is superfluous, but > it works fine as far as I can tell. > > [1] https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap11.html The text states unconditionally that when an EOF is received it is discarded by the OS. So we can infer that it's fine to send three, according to the standard -- it's not just that it happens to work. Thanks again for working on this. -- Sean Whitton
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
Full text available.Lars Ingebrigtsen <larsi@HIDDEN>
to control <at> debbugs.gnu.org.
Full text available.Received: (at 56025) by debbugs.gnu.org; 26 Jun 2022 16:27:49 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Jun 26 12:27:49 2022 Received: from localhost ([127.0.0.1]:48862 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1o5V6y-0002l5-T4 for submit <at> debbugs.gnu.org; Sun, 26 Jun 2022 12:27:49 -0400 Received: from quimby.gnus.org ([95.216.78.240]:56222) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <larsi@HIDDEN>) id 1o5V6x-0002kq-Ob for 56025 <at> debbugs.gnu.org; Sun, 26 Jun 2022 12:27:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org; s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date: References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=20SWTl94ozurjNPmfYwJn++pXeTuTQkt0/CBg2dd7Xc=; b=cVqUJL2S0rnU/GdOxgekBSffIw gomWj2jwmq/jVfCCikPvSzmJAxYq+UcPn982tovL3Zj+eGqzB1amBsYM2E9vEHLadJwpDQWH0vM7h to4AZ3zmKDvH4618p0vK9hDeT0HB0jNl+4/D9xy3nQxcWjcnN8MJONDytOkzx12DQOJE=; Received: from [84.212.220.105] (helo=xo) by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from <larsi@HIDDEN>) id 1o5V6m-0003tg-7t; Sun, 26 Jun 2022 18:27:38 +0200 From: Lars Ingebrigtsen <larsi@HIDDEN> To: Eli Zaretskii <eliz@HIDDEN> Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> <e14c3b37-fa3d-7793-d6f4-5f2b7f29ea70@HIDDEN> <040b3a36-459b-a94d-f879-7f45aac50bda@HIDDEN> <83sfnud26o.fsf@HIDDEN> <96e47ba7-efaa-b6df-dd98-60f09068e68c@HIDDEN> <874k097lbh.fsf@HIDDEN> <dfd80016-eeb3-82e3-2de6-c7bb34d07cbe@HIDDEN> <83y1xlb91y.fsf@HIDDEN> <0a5b3d44-c475-941f-c35c-7470c14e6d7b@HIDDEN> <83r13cadn2.fsf@HIDDEN> Date: Sun, 26 Jun 2022 18:27:34 +0200 In-Reply-To: <83r13cadn2.fsf@HIDDEN> (Eli Zaretskii's message of "Sat, 25 Jun 2022 19:53:06 +0300") Message-ID: <87zghzbdah.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Spam-Report: Spam detection software, running on the system "quimby.gnus.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Eli Zaretskii <eliz@HIDDEN> writes: >> How about this patch? I added a reference to the specific section of the >> POSIX specification so that it's (hopefully) easy for people to look up >> if they need further details. > > LGTM, thanks [...] Content analysis details: (-2.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 56025 Cc: Jim Porter <jporterbugs@HIDDEN>, 56025 <at> debbugs.gnu.org, spwhitton@HIDDEN, kbrown@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) Eli Zaretskii <eliz@HIDDEN> writes: >> How about this patch? I added a reference to the specific section of the >> POSIX specification so that it's (hopefully) easy for people to look up >> if they need further details. > > LGTM, thanks. Pushed to Emacs 29 now. -- (domestic pets only, the antidote for overdose, milk.) bloggy blog: http://lars.ingebrigtsen.no
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
Full text available.Received: (at 56025) by debbugs.gnu.org; 25 Jun 2022 16:53:18 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Jun 25 12:53:17 2022 Received: from localhost ([127.0.0.1]:46139 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1o5925-00068W-LI for submit <at> debbugs.gnu.org; Sat, 25 Jun 2022 12:53:17 -0400 Received: from eggs.gnu.org ([209.51.188.92]:58740) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1o5924-00068L-Gh for 56025 <at> debbugs.gnu.org; Sat, 25 Jun 2022 12:53:16 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:35064) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1o591x-0002wh-On; Sat, 25 Jun 2022 12:53:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=F6VJpvnz8JRaDvPEaJbLS+Qq395s7BFPplYd1QpLRpU=; b=NE4S2jERbpRb xjOS1QrzOWWHdr+LUFb3MUDhLcAhSFYvaTdpMXrQvOAY7BDInNhNl2ZZR1kwyUH3lRv4+HjEpwIc6 NcFYNhKsQF+ycFHghxX6hPFftS3Vlfnx5x33EtxPjH0KoHGuGciAJhE/4+tMxr6bHjacZMh8iz3Ml d7tFi5XlpZ36FiQD3kh+i0ZNw6NFuAYS5Su1zrIa2GQG7s1+ocBmZqt/8sMyHn2cNeXiaEpVfxQun xrwWy7/NNxtsN8Jqrxtndyo8uJXVvcWyFR2BEkf2hvXg0Wy1wsPTzo802xOGZ6TsB73BCE7T8r+OD b3gsfOv9xi0yWk8uXUAE2Q==; Received: from [87.69.77.57] (port=1504 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1o591x-0005ea-8o; Sat, 25 Jun 2022 12:53:09 -0400 Date: Sat, 25 Jun 2022 19:53:06 +0300 Message-Id: <83r13cadn2.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Jim Porter <jporterbugs@HIDDEN> In-Reply-To: <0a5b3d44-c475-941f-c35c-7470c14e6d7b@HIDDEN> (message from Jim Porter on Sat, 25 Jun 2022 09:13:46 -0700) Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> <e14c3b37-fa3d-7793-d6f4-5f2b7f29ea70@HIDDEN> <040b3a36-459b-a94d-f879-7f45aac50bda@HIDDEN> <83sfnud26o.fsf@HIDDEN> <96e47ba7-efaa-b6df-dd98-60f09068e68c@HIDDEN> <874k097lbh.fsf@HIDDEN> <dfd80016-eeb3-82e3-2de6-c7bb34d07cbe@HIDDEN> <83y1xlb91y.fsf@HIDDEN> <0a5b3d44-c475-941f-c35c-7470c14e6d7b@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 56025 Cc: larsi@HIDDEN, 56025 <at> debbugs.gnu.org, spwhitton@HIDDEN, kbrown@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Cc: larsi@HIDDEN, 56025 <at> debbugs.gnu.org, spwhitton@HIDDEN, > kbrown@HIDDEN > From: Jim Porter <jporterbugs@HIDDEN> > Date: Sat, 25 Jun 2022 09:13:46 -0700 > > >> When [EOF is] received, all the bytes waiting to be read are > >> immediately passed to the process without waiting for a <newline>, and > >> the EOF is discarded. Thus, if there are no bytes waiting (that is, > >> the EOF occurred at the beginning of a line), a byte count of zero > >> shall be returned from the read(), representing an end-of-file > >> indication. > > > > Perhaps some reference to this should also be in the comments. > > How about this patch? I added a reference to the specific section of the > POSIX specification so that it's (hopefully) easy for people to look up > if they need further details. LGTM, thanks.
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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[76.168.148.233]) by smtp.googlemail.com with ESMTPSA id rm10-20020a17090b3eca00b001df264610c4sm14773049pjb.0.2022.06.25.09.13.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 25 Jun 2022 09:13:46 -0700 (PDT) Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin To: Eli Zaretskii <eliz@HIDDEN> References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> <e14c3b37-fa3d-7793-d6f4-5f2b7f29ea70@HIDDEN> <040b3a36-459b-a94d-f879-7f45aac50bda@HIDDEN> <83sfnud26o.fsf@HIDDEN> <96e47ba7-efaa-b6df-dd98-60f09068e68c@HIDDEN> <874k097lbh.fsf@HIDDEN> <dfd80016-eeb3-82e3-2de6-c7bb34d07cbe@HIDDEN> <83y1xlb91y.fsf@HIDDEN> From: Jim Porter <jporterbugs@HIDDEN> Message-ID: <0a5b3d44-c475-941f-c35c-7470c14e6d7b@HIDDEN> Date: Sat, 25 Jun 2022 09:13:46 -0700 MIME-Version: 1.0 In-Reply-To: <83y1xlb91y.fsf@HIDDEN> Content-Type: multipart/mixed; boundary="------------567E61DEE309D3FBE5A4DD56" Content-Language: en-US X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 56025 Cc: larsi@HIDDEN, 56025 <at> debbugs.gnu.org, spwhitton@HIDDEN, kbrown@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) This is a multi-part message in MIME format. --------------567E61DEE309D3FBE5A4DD56 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit On 6/24/2022 10:34 PM, Eli Zaretskii wrote: >> Cc: larsi@HIDDEN, 56025 <at> debbugs.gnu.org >> From: Jim Porter <jporterbugs@HIDDEN> >> Date: Fri, 24 Jun 2022 16:03:13 -0700 >> >> POSIX standard says[1] (thanks to Eliot Moss on the Cygwin mailing list >> for citing this passage): >> >> When [EOF is] received, all the bytes waiting to be read are >> immediately passed to the process without waiting for a <newline>, and >> the EOF is discarded. Thus, if there are no bytes waiting (that is, >> the EOF occurred at the beginning of a line), a byte count of zero >> shall be returned from the read(), representing an end-of-file >> indication. > > Perhaps some reference to this should also be in the comments. How about this patch? 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bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
Full text available.Received: (at 56025) by debbugs.gnu.org; 25 Jun 2022 05:34:50 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Jun 25 01:34:50 2022 Received: from localhost ([127.0.0.1]:43973 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1o4yRV-0000tG-VP for submit <at> debbugs.gnu.org; Sat, 25 Jun 2022 01:34:50 -0400 Received: from eggs.gnu.org ([209.51.188.92]:56894) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1o4yRR-0000t1-TK for 56025 <at> debbugs.gnu.org; Sat, 25 Jun 2022 01:34:48 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:52708) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1o4yRL-00040U-MU; Sat, 25 Jun 2022 01:34:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=9K3e7EtFk2JkFLfhx9GuoE34Jue5aBKKHacR2uo1DHA=; b=rw3AlG7clY0+ sjIQq6wiVtS+i0FAYzZqiD/1KRG66f3XvJTNbuESKaBlplOylfw5Y2TeVeZo014UNeh1/FWRA/XgE o/LN0/U6sWOFGAbgMJg64uPOHt5qcv7XvQPiow9z17p7X4X4EGVbkUrCoaXGI3RWvvbj42XLe1IaQ 8GVateew+iG1dFBrfoPXbNvyvPVZwaqvI2yJIhbor6zPmaUShy8tzW6yABddjNUvWGSI5dU16YmE6 9AeD/vsfciA7mg0vuurO2gijkJ41G4m6UmVmCQUVJEYb78yxEeV8enO6x16eMJcawMn5cZkSCS0nV 2rPuSL/KlARWqP+zSxwVng==; Received: from [87.69.77.57] (port=2683 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1o4yRL-0003yn-4y; Sat, 25 Jun 2022 01:34:39 -0400 Date: Sat, 25 Jun 2022 08:34:33 +0300 Message-Id: <83y1xlb91y.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Jim Porter <jporterbugs@HIDDEN> In-Reply-To: <dfd80016-eeb3-82e3-2de6-c7bb34d07cbe@HIDDEN> (message from Jim Porter on Fri, 24 Jun 2022 16:03:13 -0700) Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> <e14c3b37-fa3d-7793-d6f4-5f2b7f29ea70@HIDDEN> <040b3a36-459b-a94d-f879-7f45aac50bda@HIDDEN> <83sfnud26o.fsf@HIDDEN> <96e47ba7-efaa-b6df-dd98-60f09068e68c@HIDDEN> <874k097lbh.fsf@HIDDEN> <dfd80016-eeb3-82e3-2de6-c7bb34d07cbe@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 56025 Cc: larsi@HIDDEN, 56025 <at> debbugs.gnu.org, spwhitton@HIDDEN, kbrown@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Cc: larsi@HIDDEN, 56025 <at> debbugs.gnu.org > From: Jim Porter <jporterbugs@HIDDEN> > Date: Fri, 24 Jun 2022 16:03:13 -0700 > > POSIX standard says[1] (thanks to Eliot Moss on the Cygwin mailing list > for citing this passage): > > When [EOF is] received, all the bytes waiting to be read are > immediately passed to the process without waiting for a <newline>, and > the EOF is discarded. Thus, if there are no bytes waiting (that is, > the EOF occurred at the beginning of a line), a byte count of zero > shall be returned from the read(), representing an end-of-file > indication. Perhaps some reference to this should also be in the comments.
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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[76.168.148.233]) by smtp.googlemail.com with ESMTPSA id p24-20020a170902a41800b001635a8f9dfdsm2334330plq.26.2022.06.24.16.03.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 24 Jun 2022 16:03:14 -0700 (PDT) Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin To: Sean Whitton <spwhitton@HIDDEN>, Eli Zaretskii <eliz@HIDDEN>, Ken Brown <kbrown@HIDDEN> References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> <e14c3b37-fa3d-7793-d6f4-5f2b7f29ea70@HIDDEN> <040b3a36-459b-a94d-f879-7f45aac50bda@HIDDEN> <83sfnud26o.fsf@HIDDEN> <96e47ba7-efaa-b6df-dd98-60f09068e68c@HIDDEN> <874k097lbh.fsf@HIDDEN> From: Jim Porter <jporterbugs@HIDDEN> Message-ID: <dfd80016-eeb3-82e3-2de6-c7bb34d07cbe@HIDDEN> Date: Fri, 24 Jun 2022 16:03:13 -0700 MIME-Version: 1.0 In-Reply-To: <874k097lbh.fsf@HIDDEN> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 56025 Cc: larsi@HIDDEN, 56025 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On 6/24/2022 3:23 PM, Sean Whitton wrote: > On Fri 24 Jun 2022 at 09:53AM -07, Jim Porter wrote: > >> How about the attached patch? I didn't check for specific platforms to >> enable the "third EOF" behavior, since a) it's hard to say for sure >> which platforms might have this issue (especially since Cygwin will be >> fixing it), and b) this lets us avoid worrying about Tramp compatibility. > > Avoiding the TRAMP issues makes sense, but could you explain why you > don't think there could be an issue with sending a process too many > EOFs? It's not immediately obvious to me. Eshell was already sending too many EOFs in some cases, and we haven't seen any issues with it (that I know of). For example, consider the command: *echo hi | rev In this case, we send the string "hi\n" over the pipe, followed by 2 EOFs (one from the stdout handle and one from the stderr handle). The POSIX standard says[1] (thanks to Eliot Moss on the Cygwin mailing list for citing this passage): When [EOF is] received, all the bytes waiting to be read are immediately passed to the process without waiting for a <newline>, and the EOF is discarded. Thus, if there are no bytes waiting (that is, the EOF occurred at the beginning of a line), a byte count of zero shall be returned from the read(), representing an end-of-file indication. I interpret that to mean that the preferred way to indicate end-of-file to `rev' in this case is to send it "hi [NL] [EOF]". The second EOF that Eshell sends when closing the stderr output handle is superfluous, but it works fine as far as I can tell. [1] https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap11.html
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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[150.135.165.1]) by smtp.gmail.com with ESMTPSA id i1-20020a654841000000b003fadfd7be5asm2127410pgs.18.2022.06.24.15.23.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jun 2022 15:23:16 -0700 (PDT) Received: by melete.silentflame.com (Postfix, from userid 1000) id F35027E3AA4; Fri, 24 Jun 2022 15:23:14 -0700 (MST) From: Sean Whitton <spwhitton@HIDDEN> To: Jim Porter <jporterbugs@HIDDEN>, Eli Zaretskii <eliz@HIDDEN>, Ken Brown <kbrown@HIDDEN> Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin In-Reply-To: <96e47ba7-efaa-b6df-dd98-60f09068e68c@HIDDEN> References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> <e14c3b37-fa3d-7793-d6f4-5f2b7f29ea70@HIDDEN> <040b3a36-459b-a94d-f879-7f45aac50bda@HIDDEN> <83sfnud26o.fsf@HIDDEN> <96e47ba7-efaa-b6df-dd98-60f09068e68c@HIDDEN> User-Agent: Notmuch/0.36 Emacs/29.0.50 (x86_64-pc-linux-gnu) Date: Fri, 24 Jun 2022 15:23:14 -0700 Message-ID: <874k097lbh.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain X-ua-ms: gsuite X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 56025 Cc: larsi@HIDDEN, 56025 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) Hello, On Fri 24 Jun 2022 at 09:53AM -07, Jim Porter wrote: > On 6/23/2022 9:40 PM, Sean Whitton wrote: > > I'm a bit queasy about an unbounded loop here. Why not just try three > > times? Or, better, try twice, and a third time only if we're on a > > platform where we know it's needed. > > How about the attached patch? I didn't check for specific platforms to > enable the "third EOF" behavior, since a) it's hard to say for sure > which platforms might have this issue (especially since Cygwin will be > fixing it), and b) this lets us avoid worrying about Tramp compatibility. Avoiding the TRAMP issues makes sense, but could you explain why you don't think there could be an issue with sending a process too many EOFs? It's not immediately obvious to me. -- Sean Whitton
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[76.168.148.233]) by smtp.googlemail.com with ESMTPSA id u4-20020a170903124400b0016a16e16c7fsm2035318plh.248.2022.06.24.09.53.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 24 Jun 2022 09:53:10 -0700 (PDT) Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin To: Eli Zaretskii <eliz@HIDDEN>, Ken Brown <kbrown@HIDDEN> References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> <e14c3b37-fa3d-7793-d6f4-5f2b7f29ea70@HIDDEN> <040b3a36-459b-a94d-f879-7f45aac50bda@HIDDEN> <83sfnud26o.fsf@HIDDEN> From: Jim Porter <jporterbugs@HIDDEN> Message-ID: <96e47ba7-efaa-b6df-dd98-60f09068e68c@HIDDEN> Date: Fri, 24 Jun 2022 09:53:11 -0700 MIME-Version: 1.0 In-Reply-To: <83sfnud26o.fsf@HIDDEN> Content-Type: multipart/mixed; boundary="------------CE238D5099019832316E8211" Content-Language: en-US X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 56025 Cc: larsi@HIDDEN, 56025 <at> debbugs.gnu.org, spwhitton@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) This is a multi-part message in MIME format. --------------CE238D5099019832316E8211 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit On 6/23/2022 9:40 PM, Sean Whitton wrote: > I'm a bit queasy about an unbounded loop here. Why not just try three > times? Or, better, try twice, and a third time only if we're on a > platform where we know it's needed. How about the attached patch? I didn't check for specific platforms to enable the "third EOF" behavior, since a) it's hard to say for sure which platforms might have this issue (especially since Cygwin will be fixing it), and b) this lets us avoid worrying about Tramp compatibility. > Many thanks for the investigative work. Agreed, this turned out to be a much subtler problem than I had initially suspected. Thanks! On 6/23/2022 11:07 PM, Eli Zaretskii wrote: > Please add there comments explaining why this is done, or at least > point to relevant messages in this bug's discussion (NOT just to the > bug number, as the discussion is long and it will be hard to > understand what part of it is relevant). Such "tricky" code should > always have comments explaining it. I added a comment explaining this to the best of my knowledge. There's one additional caveat I didn't mention there though, since it's only somewhat related. I believe this was mentioned earlier in the thread, but when Eshell creates a pipe, it routes both stdout and stderr to the next process's stdin (there's no way to control this behavior yet). When closing the handles from the initial process, it then calls `eshell-close-target' twice: once for stdout and once for stderr. Thus, with this patch, we'll call `process-send-eof' up to six times. I'm not sure this is really a problem in practice today, but it might come up if Eshell gains the ability to redirect stdout and stderr separately. --------------CE238D5099019832316E8211 Content-Type: text/plain; charset=UTF-8; name="0001-When-closing-an-Eshell-process-target-send-EOF-three.patch" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename*0="0001-When-closing-an-Eshell-process-target-send-EOF-three.pa"; filename*1="tch" RnJvbSBhNWY4ZGM4YWY2ZDE5OWJlOGUzYjA5ODAzODM1ZWZhOWQ3MGI3NmE2IE1vbiBTZXAg MTcgMDA6MDA6MDAgMjAwMQpGcm9tOiBKaW0gUG9ydGVyIDxqcG9ydGVyYnVnc0BnbWFpbC5j b20+CkRhdGU6IEZyaSwgMjQgSnVuIDIwMjIgMDk6MTQ6MzggLTA3MDAKU3ViamVjdDogW1BB VENIXSBXaGVuIGNsb3NpbmcgYW4gRXNoZWxsIHByb2Nlc3MgdGFyZ2V0LCBzZW5kIEVPRiB0 aHJlZSB0aW1lcwoKKiBsaXNwL2VzaGVsbC9lc2gtaW8uZWwgKGVzaGVsbC1jbG9zZS10YXJn ZXQpOiBTZW5kIEVPRiAzIHRpbWVzLgoKKiB0ZXN0L2xpc3AvZXNoZWxsL2VtLWV4dHBpcGUt dGVzdHMuZWwgKGVtLWV4dHBpcGUtdGVzdHMtLWRlZnRlc3QpOgpSZS1lbmFibGUgdGhlc2Ug dGVzdHMgb24gRU1CQS4KClRoaXMgcGF0Y2ggaXMgYWRhcHRlZCBieSBvbmUgZnJvbSBLZW4g QnJvd24sIHdobyB1bmNvdmVyZWQgdGhlIHJlYXNvbgpmb3IgdGhpcyBidWcgKGJ1ZyM1NjAy NSkuCi0tLQogbGlzcC9lc2hlbGwvZXNoLWlvLmVsICAgICAgICAgICAgICAgIHwgMTUgKysr KysrKysrKysrKy0tCiB0ZXN0L2xpc3AvZXNoZWxsL2VtLWV4dHBpcGUtdGVzdHMuZWwgfCAg MSAtCiAyIGZpbGVzIGNoYW5nZWQsIDEzIGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25zKC0p CgpkaWZmIC0tZ2l0IGEvbGlzcC9lc2hlbGwvZXNoLWlvLmVsIGIvbGlzcC9lc2hlbGwvZXNo LWlvLmVsCmluZGV4IDM2NDRjMWExOGIuLjJkMjUxODZkZTcgMTAwNjQ0Ci0tLSBhL2xpc3Av ZXNoZWxsL2VzaC1pby5lbAorKysgYi9saXNwL2VzaGVsbC9lc2gtaW8uZWwKQEAgLTI3Niw4 ICsyNzYsMTkgQEAgZXNoZWxsLWNsb3NlLXRhcmdldAogICAgOzsgSWYgd2UncmUgcmVkaXJl Y3RpbmcgdG8gYSBwcm9jZXNzICh2aWEgYSBwaXBlLCBvciBwcm9jZXNzCiAgICA7OyByZWRp cmVjdGlvbiksIHNlbmQgaXQgRU9GIHNvIHRoYXQgaXQga25vd3Mgd2UncmUgZmluaXNoZWQu CiAgICAoKGVzaGVsbC1wcm9jZXNzcCB0YXJnZXQpCi0gICAgKGlmIChlcSAocHJvY2Vzcy1z dGF0dXMgdGFyZ2V0KSAncnVuKQotCShwcm9jZXNzLXNlbmQtZW9mIHRhcmdldCkpKQorICAg IDs7IEFjY29yZGluZyB0byB0aGUgUE9TSVggc3RhbmRhcmRzLCBzZW5kaW5nIEVPRiBjYXVz ZXMgYWxsIGJ5dGVzCisgICAgOzsgd2FpdGluZyB0byBiZSByZWFkIHRvIGJlIHNlbnQgdG8g dGhlIHByb2Nlc3MgaW1tZWRpYXRlbHkuCisgICAgOzsgVGh1cywgaWYgdGhlcmUgYXJlIGFu eSBieXRlcyB3YWl0aW5nLCB3ZSBuZWVkIHRvIHNlbmQgRU9GCisgICAgOzsgdHdpY2U6IG9u Y2UgdG8gZmx1c2ggdGhlIGJ1ZmZlciwgYW5kIGEgc2Vjb25kIHRpbWUgdG8gY2F1c2UgdGhl CisgICAgOzsgbmV4dCByZWFkKCkgdG8gcmV0dXJuIGEgc2l6ZSBvZiAwLiAgSG93ZXZlciwg c29tZSBwbGF0Zm9ybXMKKyAgICA7OyAoZS5nLiBTb2xhcmlzKSBhY3R1YWxseSByZXF1aXJl IGEgKnRoaXJkKiBFT0YuICBTaW5jZSBzZW5kaW5nCisgICAgOzsgZXh0cmEgRU9GcyB3aGls ZSB0aGUgcHJvY2VzcyBpcyBydW5uaW5nIHNob3VsZG4ndCBicmVhaworICAgIDs7IGFueXRo aW5nLCB3ZSdsbCBqdXN0IHNlbmQgdGhlIG1heGltdW0gd2UnZCBldmVyIG5lZWQuICBTZWUK KyAgICA7OyBidWcjNTYwMjUgZm9yIGZ1cnRoZXIgZGV0YWlscy4KKyAgICAobGV0ICgoaSAw KSkKKyAgICAgICh3aGlsZSAoYW5kICg8PSAoY2wtaW5jZiBpKSAzKQorICAgICAgICAgICAg ICAgICAgKGVxIChwcm9jZXNzLXN0YXR1cyB0YXJnZXQpICdydW4pKQorICAgICAgICAocHJv Y2Vzcy1zZW5kLWVvZiB0YXJnZXQpKSkpCiAKICAgIDs7IEEgcGxhaW4gZnVuY3Rpb24gcmVk aXJlY3Rpb24gbmVlZHMgbm8gYWRkaXRpb25hbCBhcmd1bWVudHMKICAgIDs7IHBhc3NlZC4K ZGlmZiAtLWdpdCBhL3Rlc3QvbGlzcC9lc2hlbGwvZW0tZXh0cGlwZS10ZXN0cy5lbCBiL3Rl c3QvbGlzcC9lc2hlbGwvZW0tZXh0cGlwZS10ZXN0cy5lbAppbmRleCAzYjg0ZDc2M2FjLi4y OWY1ZGMwNTUxIDEwMDY0NAotLS0gYS90ZXN0L2xpc3AvZXNoZWxsL2VtLWV4dHBpcGUtdGVz dHMuZWwKKysrIGIvdGVzdC9saXNwL2VzaGVsbC9lbS1leHRwaXBlLXRlc3RzLmVsCkBAIC03 MSw3ICs3MSw2IEBAIGVtLWV4dHBpcGUtdGVzdHMtLWRlZnRlc3QKICAgICAgICAoc2tpcC11 bmxlc3Mgc2hlbGwtZmlsZS1uYW1lKQogICAgICAgIChza2lwLXVubGVzcyBzaGVsbC1jb21t YW5kLXN3aXRjaCkKICAgICAgICAoc2tpcC11bmxlc3MgKGV4ZWN1dGFibGUtZmluZCBzaGVs bC1maWxlLW5hbWUpKQotICAgICAgIChza2lwLXVubGVzcyAobm90IChnZXRlbnYgIkVNQUNT X0VNQkFfQ0kiKSkpCiAgICAgICAgKGxldCAoKGlucHV0ICxpbnB1dCkpCiAgICAgICAgICAo d2l0aC10ZW1wLWVzaGVsbCAsQGJvZHkpKSkpKQogCi0tIAoyLjI1LjEKCg== --------------CE238D5099019832316E8211--
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
Full text available.Received: (at 56025) by debbugs.gnu.org; 24 Jun 2022 06:08:01 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Jun 24 02:08:01 2022 Received: from localhost ([127.0.0.1]:40602 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1o4cU5-00069w-C2 for submit <at> debbugs.gnu.org; Fri, 24 Jun 2022 02:08:01 -0400 Received: from eggs.gnu.org ([209.51.188.92]:46514) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1o4cU2-00069g-GC for 56025 <at> debbugs.gnu.org; Fri, 24 Jun 2022 02:07:59 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:56092) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1o4cTv-0006lD-9U; Fri, 24 Jun 2022 02:07:52 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=7JgWOOHkXGsbLgnj2eglfl0hc9EyiEJPJNsIaYYT/Fo=; b=mlYnp1n8V8JK les738IPsWKfgSATKrIwL9ZZYGoaAW2R8CyhSLJ7mMZuPs0C/UgW2QuSYt7HCYLo1a0/LvSSELUdM LJwYpTVXuT4kfae3+lwYXTnhjS7SZ6+oCKWqkxTPkirHuanIBG2m53lBPPYqhU5p3GYtujW+vRMHA 9kHm8gzXNo68R+e5e5f42wjNCMuZMq5aOQM/7/BJHWVKMmKJm2bSXhEQINwBofEbNuxJOQs6V15bx biOBV3wEdK/sAz+ZiaRkqbMyEn7Zc2sasfsZco/aWfM9nBr3/CjTMj69h0edlJmCdDhAV4IBYQGT8 cb2Gb+HW8Po326DGt3SfvQ==; Received: from [87.69.77.57] (port=3718 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1o4cTu-0001ci-O8; Fri, 24 Jun 2022 02:07:51 -0400 Date: Fri, 24 Jun 2022 09:07:43 +0300 Message-Id: <83sfnud26o.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Ken Brown <kbrown@HIDDEN> In-Reply-To: <040b3a36-459b-a94d-f879-7f45aac50bda@HIDDEN> (message from Ken Brown on Thu, 23 Jun 2022 21:18:24 -0400) Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> <e14c3b37-fa3d-7793-d6f4-5f2b7f29ea70@HIDDEN> <040b3a36-459b-a94d-f879-7f45aac50bda@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 56025 Cc: jporterbugs@HIDDEN, larsi@HIDDEN, 56025 <at> debbugs.gnu.org, spwhitton@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Date: Thu, 23 Jun 2022 21:18:24 -0400 > From: Ken Brown <kbrown@HIDDEN> > > 2. On Cygwin and some other platforms, including Solaris 11.4 I think, it > actually takes a third C-d, for reasons explained in the email thread starting > at https://cygwin.com/pipermail/cygwin/2022-June/251672.html. We're probably > going to change this on Cygwin, but that still leaves other platforms. > > The following patch resolves both issues: > > diff --git a/lisp/eshell/esh-io.el b/lisp/eshell/esh-io.el > index 3644c1a18b..1c4131cb07 100644 > --- a/lisp/eshell/esh-io.el > +++ b/lisp/eshell/esh-io.el > @@ -276,8 +276,8 @@ eshell-close-target > ;; If we're redirecting to a process (via a pipe, or process > ;; redirection), send it EOF so that it knows we're finished. > ((eshell-processp target) > - (if (eq (process-status target) 'run) > - (process-send-eof target))) > + (while (eq (process-status target) 'run) > + (process-send-eof target))) Please add there comments explaining why this is done, or at least point to relevant messages in this bug's discussion (NOT just to the bug number, as the discussion is long and it will be hard to understand what part of it is relevant). Such "tricky" code should always have comments explaining it. Thanks.
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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[2a01:4f8:c010:9ea2::1]) by smtp.gmail.com with ESMTPSA id y10-20020a1c4b0a000000b0039c587342d8sm5546885wma.3.2022.06.23.21.40.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 Jun 2022 21:40:25 -0700 (PDT) Received: by athena.silentflame.com (Postfix, from userid 1000) id 4E5921B6401; Fri, 24 Jun 2022 04:40:25 +0000 (UTC) From: Sean Whitton <spwhitton@HIDDEN> To: Ken Brown <kbrown@HIDDEN>, Jim Porter <jporterbugs@HIDDEN>, 56025 <at> debbugs.gnu.org, Lars Magne Ingebrigtsen <larsi@HIDDEN> Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin In-Reply-To: <040b3a36-459b-a94d-f879-7f45aac50bda@HIDDEN> References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> <e14c3b37-fa3d-7793-d6f4-5f2b7f29ea70@HIDDEN> <040b3a36-459b-a94d-f879-7f45aac50bda@HIDDEN> User-Agent: Notmuch/0.36 Emacs/29.0.50 (x86_64-pc-linux-gnu) Date: Thu, 23 Jun 2022 21:40:25 -0700 Message-ID: <87sfnun07a.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain X-ua-ms: gsuite X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 56025 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) Hello, On Thu 23 Jun 2022 at 09:18pm -04, Ken Brown wrote: > diff --git a/lisp/eshell/esh-io.el b/lisp/eshell/esh-io.el > index 3644c1a18b..1c4131cb07 100644 > --- a/lisp/eshell/esh-io.el > +++ b/lisp/eshell/esh-io.el > @@ -276,8 +276,8 @@ eshell-close-target > ;; If we're redirecting to a process (via a pipe, or process > ;; redirection), send it EOF so that it knows we're finished. > ((eshell-processp target) > - (if (eq (process-status target) 'run) > - (process-send-eof target))) > + (while (eq (process-status target) 'run) > + (process-send-eof target))) > > ;; A plain function redirection needs no additional arguments > ;; passed. > > I'm about to go AFK for a few days. If the eshell people agree that something > like this patch should be installed, please go ahead. I think it would then be > worth re-enabling the extpipe tests on EMBA to see if the problem is fixed there > too. I'm a bit queasy about an unbounded loop here. Why not just try three times? Or, better, try twice, and a third time only if we're on a platform where we know it's needed. Many thanks for the investigative work. -- Sean Whitton
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin
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From: Ken Brown <kbrown@HIDDEN>
To: Jim Porter <jporterbugs@HIDDEN>,
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On 6/19/2022 12:02 PM, Ken Brown wrote:
> On 6/18/2022 6:00 PM, Jim Porter wrote:
>> On 6/18/2022 1:51 PM, Ken Brown wrote:
>>> On 6/18/2022 3:02 PM, Jim Porter wrote:
>>>> On 6/18/2022 10:52 AM, Ken Brown wrote:
>>>>> No, I'm seeing the same results on Emacs 28. On both Emacs 28 and Emacs
>>>>> 29, rev is apparently not seeing EOF unless echo outputs a newline, so rev
>>>>> keeps waiting for input.
>>>>
>>>> Ah ha! Thanks for debugging this. The minimal fix then would be to change
>>>> the command in em-extpipe-test-2 to either of these:
>>>>
>>>> echo -N "bar" | rev *>temp
>>>
>>> This doesn't work. It still hangs when run interactively...
>>
>> Just to confirm, the above command hangs, but the following works, correct?
>>
>> echo -N "bar" | rev
>
> Correct.
>
>>>> *echo "bar" | rev *>temp
>>>
>>> This works interactively...
>>
>> All this makes me think that we could be dealing with a race condition in how
>> Eshell pipes I/O around. Maybe there's a timing issue in `eshell-close-target'
>> where we end up not sending EOF to the "rev" (or "sh") process?
>
> I think I've just discovered an anomaly in "rev" on Cygwin that could partially
> explain what I'm seeing. I'll investigate that before proceeding further.
OK, I think I've got it sorted out now. The anomaly I referred to above is
actually an anomaly in the stdio routines, not in "rev". It's discussed in item
2 below. There are two issues.
1. I think there's a bug in eshell-close-target, in which it's assumed that
sending C-d indicates end-of-file. This is only true if there's no input waiting
to be read. [In an interactive situation, this means we're at the beginning of
a line.] Otherwise, it takes a second C-d to indicate EOF. So one C-d should
suffice in the "echo -N bar" situation, but two are needed after "echo bar".
This bug probably went unnoticed because eshell-close-target was called twice in
the case we were discussing, so process-send-eof was called twice.
2. On Cygwin and some other platforms, including Solaris 11.4 I think, it
actually takes a third C-d, for reasons explained in the email thread starting
at https://cygwin.com/pipermail/cygwin/2022-June/251672.html. We're probably
going to change this on Cygwin, but that still leaves other platforms.
The following patch resolves both issues:
diff --git a/lisp/eshell/esh-io.el b/lisp/eshell/esh-io.el
index 3644c1a18b..1c4131cb07 100644
--- a/lisp/eshell/esh-io.el
+++ b/lisp/eshell/esh-io.el
@@ -276,8 +276,8 @@ eshell-close-target
;; If we're redirecting to a process (via a pipe, or process
;; redirection), send it EOF so that it knows we're finished.
((eshell-processp target)
- (if (eq (process-status target) 'run)
- (process-send-eof target)))
+ (while (eq (process-status target) 'run)
+ (process-send-eof target)))
;; A plain function redirection needs no additional arguments
;; passed.
I'm about to go AFK for a few days. If the eshell people agree that something
like this patch should be installed, please go ahead. I think it would then be
worth re-enabling the extpipe tests on EMBA to see if the problem is fixed there
too.
Ken
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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On both Emacs 28 and Emacs 29, >>>> rev is apparently not seeing EOF unless echo outputs a newline, so rev keeps >>>> waiting for input. >>> >>> Ah ha! Thanks for debugging this. The minimal fix then would be to change the >>> command in em-extpipe-test-2 to either of these: >>> >>> echo -N "bar" | rev *>temp >> >> This doesn't work. It still hangs when run interactively... > > Just to confirm, the above command hangs, but the following works, correct? > > echo -N "bar" | rev Correct. >>> *echo "bar" | rev *>temp >> >> This works interactively... > > All this makes me think that we could be dealing with a race condition in how > Eshell pipes I/O around. Maybe there's a timing issue in `eshell-close-target' > where we end up not sending EOF to the "rev" (or "sh") process? I think I've just discovered an anomaly in "rev" on Cygwin that could partially explain what I'm seeing. I'll investigate that before proceeding further. > I'd be interested to see the results if you ran `M-x trace-function' for > `eshell-close-target' and `process-status' before trying these commands. > `process-status' should return `run' when called from inside > `eshell-close-target'. If it doesn't, then we'd neglect to send EOF to "rev" (or > "sh"), which would cause a hang like what you're seeing. > > If that's not the issue, then I'm not sure what the issue would be exactly, but > poking around in `eshell-close-target', `eshell-insertion-filter', and > `eshell-sentinel' might yield some useful info. > >> My guess is that it's the latter, but I don't know if it's worth pursuing this >> if Cygwin and EMBA are the only platforms on which there's a problem. Of >> course, there might be other platforms and no one has reported it. > > I think if we could figure out the real issue, it would be great to fix it. > Though if we can't, it would probably be ok to just fix the test by avoiding the > issue.
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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[150.135.165.42]) by smtp.gmail.com with ESMTPSA id nr6-20020a17090b240600b001df82551cf2sm5452769pjb.44.2022.06.18.16.46.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 18 Jun 2022 16:46:30 -0700 (PDT) Received: by melete.silentflame.com (Postfix, from userid 1000) id E4C467E07FC; Sat, 18 Jun 2022 16:46:28 -0700 (MST) From: Sean Whitton <spwhitton@HIDDEN> To: Jim Porter <jporterbugs@HIDDEN>, Ken Brown <kbrown@HIDDEN>, 56025 <at> debbugs.gnu.org, Lars Magne Ingebrigtsen <larsi@HIDDEN> Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin In-Reply-To: <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> User-Agent: Notmuch/0.36 Emacs/29.0.50 (x86_64-pc-linux-gnu) Date: Sat, 18 Jun 2022 16:46:28 -0700 Message-ID: <87edzl357v.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain X-ua-ms: gsuite X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 56025 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) Hello, On Sat 18 Jun 2022 at 03:00PM -07, Jim Porter wrote: > I think if we could figure out the real issue, it would be great to fix > it. Though if we can't, it would probably be ok to just fix the test by > avoiding the issue. We might first want to add another general Eshell test which shows up the problem, though? -- Sean Whitton
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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[76.168.148.233]) by smtp.googlemail.com with ESMTPSA id f23-20020a17090a9b1700b001eaec8cea55sm5258893pjp.57.2022.06.18.15.00.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 18 Jun 2022 15:00:27 -0700 (PDT) Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin To: Ken Brown <kbrown@HIDDEN>, Sean Whitton <spwhitton@HIDDEN>, 56025 <at> debbugs.gnu.org, Lars Magne Ingebrigtsen <larsi@HIDDEN> References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> From: Jim Porter <jporterbugs@HIDDEN> Message-ID: <17d41105-b006-f9ad-af0b-ece84a7f5248@HIDDEN> Date: Sat, 18 Jun 2022 15:00:26 -0700 MIME-Version: 1.0 In-Reply-To: <8974408d-91cd-aebd-7a5b-596a57bd640e@HIDDEN> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 56025 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On 6/18/2022 1:51 PM, Ken Brown wrote: > On 6/18/2022 3:02 PM, Jim Porter wrote: >> On 6/18/2022 10:52 AM, Ken Brown wrote: >>> No, I'm seeing the same results on Emacs 28. On both Emacs 28 and >>> Emacs 29, rev is apparently not seeing EOF unless echo outputs a >>> newline, so rev keeps waiting for input. >> >> Ah ha! Thanks for debugging this. The minimal fix then would be to >> change the command in em-extpipe-test-2 to either of these: >> >> echo -N "bar" | rev *>temp > > This doesn't work. It still hangs when run interactively... Just to confirm, the above command hangs, but the following works, correct? echo -N "bar" | rev >> *echo "bar" | rev *>temp > > This works interactively... All this makes me think that we could be dealing with a race condition in how Eshell pipes I/O around. Maybe there's a timing issue in `eshell-close-target' where we end up not sending EOF to the "rev" (or "sh") process? I'd be interested to see the results if you ran `M-x trace-function' for `eshell-close-target' and `process-status' before trying these commands. `process-status' should return `run' when called from inside `eshell-close-target'. If it doesn't, then we'd neglect to send EOF to "rev" (or "sh"), which would cause a hang like what you're seeing. If that's not the issue, then I'm not sure what the issue would be exactly, but poking around in `eshell-close-target', `eshell-insertion-filter', and `eshell-sentinel' might yield some useful info. > My guess is that it's the latter, but I don't know if it's worth > pursuing this if Cygwin and EMBA are the only platforms on which there's > a problem. Of course, there might be other platforms and no one has > reported it. I think if we could figure out the real issue, it would be great to fix it. Though if we can't, it would probably be ok to just fix the test by avoiding the issue.
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin
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Sean Whitton <spwhitton@HIDDEN>, 56025 <at> debbugs.gnu.org,
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On 6/18/2022 3:02 PM, Jim Porter wrote:
> On 6/18/2022 10:52 AM, Ken Brown wrote:
>> No, I'm seeing the same results on Emacs 28. On both Emacs 28 and Emacs 29,
>> rev is apparently not seeing EOF unless echo outputs a newline, so rev keeps
>> waiting for input.
>
> Ah ha! Thanks for debugging this. The minimal fix then would be to change the
> command in em-extpipe-test-2 to either of these:
>
> echo -N "bar" | rev *>temp
This doesn't work. It still hangs when run interactively, as does the equivalent
echo -N bar | sh -c "rev >temp"
> *echo "bar" | rev *>temp
This works interactively, but I don't know the appropriate syntax for modifying
the test. Naively replacing each 'echo' by '*echo' caused the 'should-parse' to
fail.
> One last[1] question: if you ran "echo -n bar | rev" in Cygwin Bash, does it
> hang there too?
No.
> Maybe this is just a Cygwin limitation, or maybe Eshell is doing
> something wrong with its built-in pipelines in this situation.
My guess is that it's the latter, but I don't know if it's worth pursuing this
if Cygwin and EMBA are the only platforms on which there's a problem. Of
course, there might be other platforms and no one has reported it.
Once the test is fixed to succeed on Cygwin, we should probably revert the
change that caused the extpipe tests to be skipped on EMBA, just to make sure
that the same fix works there.
Ken
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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[76.168.148.233]) by smtp.googlemail.com with ESMTPSA id g23-20020a17090a579700b001eaec814132sm5845637pji.3.2022.06.18.12.02.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 18 Jun 2022 12:02:16 -0700 (PDT) Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin To: Ken Brown <kbrown@HIDDEN>, Sean Whitton <spwhitton@HIDDEN>, 56025 <at> debbugs.gnu.org, Lars Magne Ingebrigtsen <larsi@HIDDEN> References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> From: Jim Porter <jporterbugs@HIDDEN> Message-ID: <f52e895c-d555-da60-2aac-c6603f73d418@HIDDEN> Date: Sat, 18 Jun 2022 12:02:15 -0700 MIME-Version: 1.0 In-Reply-To: <adda4056-e231-2d98-6622-fdb45e45b942@HIDDEN> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 56025 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On 6/18/2022 10:52 AM, Ken Brown wrote: > No, I'm seeing the same results on Emacs 28. On both Emacs 28 and Emacs > 29, rev is apparently not seeing EOF unless echo outputs a newline, so > rev keeps waiting for input. Ah ha! Thanks for debugging this. The minimal fix then would be to change the command in em-extpipe-test-2 to either of these: echo -N "bar" | rev *>temp *echo "bar" | rev *>temp One last[1] question: if you ran "echo -n bar | rev" in Cygwin Bash, does it hang there too? Maybe this is just a Cygwin limitation, or maybe Eshell is doing something wrong with its built-in pipelines in this situation. > [Side note: It took me a while to sort this out because (a) Eshell's > echo does not output a newline by default, in contrast to Bash's builtin > echo; (b) in Eshell in Emacs 28, you use '-n' to add a newline, while in > Bash '-n' suppresses the newline; and (c) in Eshell in Emacs 29, you use > '-N' to add a newline.] This is one of the parts of Eshell that's always bothered me a bit. Eshell's echo is different enough from other echo implementations that it's easy to get tripped up. There's some further discussion of this in bug#12689 as well. I'm hesitant to change Eshell's echo too much, since it could break user scripts, but it would be nice if we could find a reasonably-compatible way of making it work more like /bin/echo. [1] Well, probably last.
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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And it's even the same if I remove the quotation marks >> around "rev >temp". > > Does the above command also fail on Emacs 28? I changed some aspects of process > management for Eshell in Emacs 29, so it's possible this is a regression. If it > works correctly under Emacs 28, I'd be very interested to see the results of > bisecting to find the breaking commit. No, I'm seeing the same results on Emacs 28. On both Emacs 28 and Emacs 29, rev is apparently not seeing EOF unless echo outputs a newline, so rev keeps waiting for input. [Side note: It took me a while to sort this out because (a) Eshell's echo does not output a newline by default, in contrast to Bash's builtin echo; (b) in Eshell in Emacs 28, you use '-n' to add a newline, while in Bash '-n' suppresses the newline; and (c) in Eshell in Emacs 29, you use '-N' to add a newline.] Here's my simplest reproduction recipe for the bug: Type 'echo bar | rev' into Eshell. In both Emacs 28 and Emacs 29, 'rab' is output but rev keeps running. But if I make echo output a newline (by '-n' in Emacs 28 and '-N' in Emacs 29), then rev exits after outputting 'rab' (followed by newline). Ken
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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[76.168.148.233]) by smtp.googlemail.com with ESMTPSA id 9-20020a17090a0cc900b001e3937f21absm3175181pjt.19.2022.06.17.20.50.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 17 Jun 2022 20:50:40 -0700 (PDT) Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin To: Ken Brown <kbrown@HIDDEN>, Sean Whitton <spwhitton@HIDDEN>, 56025 <at> debbugs.gnu.org, Lars Magne Ingebrigtsen <larsi@HIDDEN> References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> From: Jim Porter <jporterbugs@HIDDEN> Message-ID: <7e7daa2f-dbbc-cd0a-4958-2a2932b17837@HIDDEN> Date: Fri, 17 Jun 2022 20:50:40 -0700 MIME-Version: 1.0 In-Reply-To: <1de33903-4c55-e043-3754-726f7044f2d0@HIDDEN> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 56025 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On 6/17/2022 7:07 PM, Ken Brown wrote: > On 6/17/2022 8:57 PM, Sean Whitton wrote: >> Could you see if the same thing happens if you type >> >> echo "bar" | sh -c "rev >temp" >> >> into an interactive session, please? >> >> If it's the same then extpipe has uncovered a general Eshell bug. > > Yes, it's the same. And it's even the same if I remove the quotation > marks around "rev >temp". Does the above command also fail on Emacs 28? I changed some aspects of process management for Eshell in Emacs 29, so it's possible this is a regression. If it works correctly under Emacs 28, I'd be very interested to see the results of bisecting to find the breaking commit.
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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Then a prompt appears again, >>> and 'ls -l' shows that temp exists and is empty. >>> >>> Prior to typing 'C-c C-c', 'M-x list-processes' (or 'C-c C-s') shows a bash >>> process running but it doesn't show 'rev'. But running 'ps' outside of emacs >>> shows both 'rev' and its parent 'bash' process. >>> >>> It does seem that there's an actual bug here, not just a test that should be >>> skipped because it times out. It could be a Cygwin bug, of course, but that >>> doesn't explain the EMBA failure. >> >> Could you see if the same thing happens if you type >> >> echo "bar" | sh -c "rev >temp" >> >> into an interactive session, please? >> >> If it's the same then extpipe has uncovered a general Eshell bug. > > Yes, it's the same. And it's even the same if I remove the quotation marks > around "rev >temp". And it's also the same if remove the output redirection, i.e., if I type 'echo bar | sh -c rev'. On the other hand, if I type 'echo bar | rev', then I see the output 'rab'; but rev doesn't exit, and I don't get the eshell prompt, until I type 'C-c C-c'. On the third hand, 'echo bar | cat' almost works; I see the output 'bar' followed immediately by the eshell prompt (with no newline after 'bar'). Is eshell stripping newlines in some circumstances? If so, I wonder if this accounts for the failure of rev to exit in some of the earlier examples, since it operates on lines? Ken
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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em-extpipe-test-2 times out on EMBA and Cygwin Content-Language: en-US To: Sean Whitton <spwhitton@HIDDEN>, 56025 <at> debbugs.gnu.org, Lars Magne Ingebrigtsen <larsi@HIDDEN> References: <8e21db9c-0100-998e-f280-81304e7ff61a@HIDDEN> <87mtecl82o.fsf@HIDDEN> <40d9e52f-2041-b341-ff77-546ca7792791@HIDDEN> <d9280936-637b-4ba4-4891-d8c6c4e139c5@HIDDEN> <87k09elrf8.fsf@HIDDEN> From: Ken Brown <kbrown@HIDDEN> In-Reply-To: <87k09elrf8.fsf@HIDDEN> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: BL1P223CA0021.NAMP223.PROD.OUTLOOK.COM (2603:10b6:208:2c4::26) To BN7PR04MB4388.namprd04.prod.outlook.com (2603:10b6:406:f8::19) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: bad73cac-d752-4047-8455-08da50cf500e X-MS-TrafficTypeDiagnostic: MN2PR04MB6256:EE_ X-Microsoft-Antispam-PRVS: <MN2PR04MB6256407AC889CC3D40B3D221D8AE9@HIDDEN> X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Then a prompt appears again, >> and 'ls -l' shows that temp exists and is empty. >> >> Prior to typing 'C-c C-c', 'M-x list-processes' (or 'C-c C-s') shows a bash >> process running but it doesn't show 'rev'. But running 'ps' outside of emacs >> shows both 'rev' and its parent 'bash' process. >> >> It does seem that there's an actual bug here, not just a test that should be >> skipped because it times out. It could be a Cygwin bug, of course, but that >> doesn't explain the EMBA failure. > > Could you see if the same thing happens if you type > > echo "bar" | sh -c "rev >temp" > > into an interactive session, please? > > If it's the same then extpipe has uncovered a general Eshell bug. Yes, it's the same. And it's even the same if I remove the quotation marks around "rev >temp". Ken
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From: Sean Whitton <spwhitton@HIDDEN>
To: Ken Brown <kbrown@HIDDEN>, 56025 <at> debbugs.gnu.org, Lars Magne
Ingebrigtsen <larsi@HIDDEN>
Subject: Re: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin
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Hello,
On Fri 17 Jun 2022 at 09:39am -04, Ken Brown wrote:
> On 6/16/2022 6:01 PM, Ken Brown wrote:
>> On 6/16/2022 3:30 PM, Sean Whitton wrote:
>>> Hello Ken,
>>>
>>> On Thu 16 Jun 2022 at 02:30pm -04, Ken Brown wrote:
>>>
>>>> In commit 231a1ba3, Lars disabled the extpipe tests on EMBA "because t=
hey
>>>> apparently time out".=C2=A0 The EMBA log he cited in the commit messag=
e shows that
>>>> only em-extpipe-test-2 times out.=C2=A0 And this same test (but no oth=
ers) also times
>>>> out on Cygwin:
>>>
>>> That test invokes `sh -c "rev >temp"` as its only subprocess, so that's
>>> probably what is timing out.=C2=A0 Is there something different about
>>> Cygwin's sh?=C2=A0 Something about EOFs?
>>
>> I'm not aware of anything different.=C2=A0 Here's what happens when I ru=
n the test
>> interactively:
>>
>> $ time echo \"bar\" | sh -c "rev >temp"
>>
>> real=C2=A0=C2=A0=C2=A0 0m0.100s
>> user=C2=A0=C2=A0=C2=A0 0m0.030s
>> sys=C2=A0=C2=A0=C2=A0=C2=A0 0m0.030s
>>
>> $ cat temp
>> "rab"
>>
>> And keep in mind that the test also times out on EMBA.
>
> I just tried a different experiment: In an interactive emacs-29 session, I
> started eshell and typed
>
> echo \"bar\" | rev *>temp
>
> Nothing visible happens until I type 'C-c C-c'. Then a prompt appears ag=
ain,
> and 'ls -l' shows that temp exists and is empty.
>
> Prior to typing 'C-c C-c', 'M-x list-processes' (or 'C-c C-s') shows a ba=
sh
> process running but it doesn't show 'rev'. But running 'ps' outside of e=
macs
> shows both 'rev' and its parent 'bash' process.
>
> It does seem that there's an actual bug here, not just a test that should=
be
> skipped because it times out. It could be a Cygwin bug, of course, but t=
hat
> doesn't explain the EMBA failure.
Could you see if the same thing happens if you type
echo "bar" | sh -c "rev >temp"
into an interactive session, please?
If it's the same then extpipe has uncovered a general Eshell bug.
--=20
Sean Whitton
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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X-Spam-Score: -1.0 (-) On 6/16/2022 6:01 PM, Ken Brown wrote: > On 6/16/2022 3:30 PM, Sean Whitton wrote: >> Hello Ken, >> >> On Thu 16 Jun 2022 at 02:30pm -04, Ken Brown wrote: >> >>> In commit 231a1ba3, Lars disabled the extpipe tests on EMBA "because they >>> apparently time out". The EMBA log he cited in the commit message shows that >>> only em-extpipe-test-2 times out. And this same test (but no others) also times >>> out on Cygwin: >> >> That test invokes `sh -c "rev >temp"` as its only subprocess, so that's >> probably what is timing out. Is there something different about >> Cygwin's sh? Something about EOFs? > > I'm not aware of anything different. Here's what happens when I run the test > interactively: > > $ time echo \"bar\" | sh -c "rev >temp" > > real 0m0.100s > user 0m0.030s > sys 0m0.030s > > $ cat temp > "rab" > > And keep in mind that the test also times out on EMBA. I just tried a different experiment: In an interactive emacs-29 session, I started eshell and typed echo \"bar\" | rev *>temp Nothing visible happens until I type 'C-c C-c'. Then a prompt appears again, and 'ls -l' shows that temp exists and is empty. Prior to typing 'C-c C-c', 'M-x list-processes' (or 'C-c C-s') shows a bash process running but it doesn't show 'rev'. But running 'ps' outside of emacs shows both 'rev' and its parent 'bash' process. It does seem that there's an actual bug here, not just a test that should be skipped because it times out. It could be a Cygwin bug, of course, but that doesn't explain the EMBA failure. Ken
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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RnNXMVtkGa9n4+SVIQAv+hyd5p5dcqJf7FC0e5s68Kk3azjRdaeaPg83w0ms5f0jQhJ05mnUqyi7ifqILss+XA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CO2PR04MB2151 X-Spam-Score: -0.0 (/) X-Debbugs-Envelope-To: 56025 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) On 6/16/2022 3:30 PM, Sean Whitton wrote: > Hello Ken, > > On Thu 16 Jun 2022 at 02:30pm -04, Ken Brown wrote: > >> In commit 231a1ba3, Lars disabled the extpipe tests on EMBA "because they >> apparently time out". The EMBA log he cited in the commit message shows that >> only em-extpipe-test-2 times out. And this same test (but no others) also times >> out on Cygwin: > > That test invokes `sh -c "rev >temp"` as its only subprocess, so that's > probably what is timing out. Is there something different about > Cygwin's sh? Something about EOFs? I'm not aware of anything different. Here's what happens when I run the test interactively: $ time echo \"bar\" | sh -c "rev >temp" real 0m0.100s user 0m0.030s sys 0m0.030s $ cat temp "rab" And keep in mind that the test also times out on EMBA. Ken
bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
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Subject: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin
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In commit 231a1ba3, Lars disabled the extpipe tests on EMBA "because they
apparently time out". The EMBA log he cited in the commit message shows that
only em-extpipe-test-2 times out. And this same test (but no others) also times
out on Cygwin:
$ make -C test em-extpipe-tests
[...]
Test em-extpipe-test-2 backtrace:
signal(error ("timed out waiting for subprocess(es)"))
error("timed out waiting for subprocess(es)")
eshell-wait-for-subprocess()
eshell-command-result-p("echo \"bar\" | rev *>/tmp/emacs-test-Rw5ILv
(let ((input (replace-regexp-in-string "temp\\([^>]\\|\\'\\)" temp (
(unwind-protect (let ((input (replace-regexp-in-string "temp\\([^>]\
(let ((temp-buffer (generate-new-buffer " *temp*" t))) (unwind-prote
(progn (let ((temp-buffer (generate-new-buffer " *temp*" t))) (unwin
(unwind-protect (progn (let ((temp-buffer (generate-new-buffer " *te
(let* ((coding-system-for-write nil) (temp-file (identity (make-temp
(save-current-buffer (set-buffer eshell-buffer) (let* ((fn-38 #'exec
(unwind-protect (save-current-buffer (set-buffer eshell-buffer) (let
(let* ((process-environment (cons "HISTFILE" process-environment)) (
(progn (let* ((process-environment (cons "HISTFILE" process-environm
(unwind-protect (progn (let* ((process-environment (cons "HISTFILE"
(let* ((coding-system-for-write nil) (temp-file (file-name-as-direct
(save-current-buffer (let* ((coding-system-for-write nil) (temp-file
(let ((input "echo \"bar\" | rev *>temp")) (save-current-buffer (let
(progn (let ((value-24 (gensym "ert-form-evaluation-aborted-"))) (le
(closure (t) nil (progn (let ((value-24 (gensym "ert-form-evaluation
ert--run-test-internal(#s(ert--test-execution-info :test #s(ert-test
ert-run-test(#s(ert-test :name em-extpipe-test-2 :documentation nil
ert-run-or-rerun-test(#s(ert--stats :selector ... :tests ... :test-m
ert-run-tests((not (or (tag :unstable) (tag :nativecomp))) #f(compil
ert-run-tests-batch((not (or (tag :unstable) (tag :nativecomp))))
ert-run-tests-batch-and-exit((not (or (tag :unstable) (tag :nativeco
eval((ert-run-tests-batch-and-exit '(not (or (tag :unstable) (tag :n
command-line-1(("-L" ":../../master/test" "-l" "ert" "-l" "lisp/eshe
command-line()
normal-top-level()
Test em-extpipe-test-2 condition:
(error "timed out waiting for subprocess(es)")
FAILED 10/17 em-extpipe-test-2 (5.237846 sec) at
../../master/test/lisp/eshell/em-extpipe-tests.el:87
I don't see what's special about this test that would cause it to time out on
some systems. Sean, do you have any ideas? If not, I suggest just skipping it
on Cygwin. And maybe we should skip just this extpipe test (rather than all of
them) on EMBA.
Ken
Ken Brown <kbrown@HIDDEN>:spwhitton@HIDDEN, bug-gnu-emacs@HIDDEN.
Full text available.spwhitton@HIDDEN, bug-gnu-emacs@HIDDEN:bug#56025; Package emacs.
Full text available.
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