From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Ken Brown Newsgroups: gmane.emacs.bugs Subject: bug#56025: 29.0.50; em-extpipe-test-2 times out on EMBA and Cygwin Date: Fri, 17 Jun 2022 09:39:27 -0400 Message-ID: References: <8e21db9c-0100-998e-f280-81304e7ff61a@cornell.edu> <87mtecl82o.fsf@athena.silentflame.com> <40d9e52f-2041-b341-ff77-546ca7792791@cornell.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="394"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.9.1 To: Sean Whitton , 56025@debbugs.gnu.org, Lars Magne Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Jun 17 15:40:58 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1o2CDa-000ATO-AI for geb-bug-gnu-emacs@m.gmane-mx.org; 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DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 2 X-MS-Exchange-AntiSpam-MessageData-0: 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 rTUXQpbNzB+EaLac0v6MTeEn7gMmCfJv3/QlkQOvFp/kiLqGeW5xqC00Ae4i7HRHAXE7mTT79O1tZW6HDfe+Ha8pHpbDmIPT+1 X-MS-Exchange-AntiSpam-MessageData-1: 0oZsmWGaIB0Wug== X-OriginatorOrg: cornell.edu X-MS-Exchange-CrossTenant-Network-Message-Id: 658f803f-9c44-4b54-c181-08da5066cd5d X-MS-Exchange-CrossTenant-AuthSource: BN7PR04MB4388.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Jun 2022 13:39:29.0112 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 5d7e4366-1b9b-45cf-8e79-b14b27df46e1 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: UgV0GXV++XQyJ32CuM1oEgZuqkADGIaC5Sd94xkLDbnuX3Ovn8n8xNjOaDPVnkuL6kjepftlGFPVjjyPzn1Y4Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR04MB0182 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list 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-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:234693 Archived-At: 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