From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from endymion.arp.harvard.edu (mercury.arp.harvard.edu [140.247.179.71]) by sourceware.org (Postfix) with ESMTPS id 0B6FE3858D28 for ; Mon, 19 Sep 2022 21:28:05 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 0B6FE3858D28 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=huarp.harvard.edu Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=huarp.harvard.edu Received: from [192.168.7.23] (pool-71-184-121-244.bstnma.fios.verizon.net [71.184.121.244]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by endymion.arp.harvard.edu (Postfix) with ESMTPSA id 9F6A126008D; Mon, 19 Sep 2022 17:28:04 -0400 (EDT) Message-ID: Date: Mon, 19 Sep 2022 17:28:00 -0400 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.13.0 Subject: Re: FIFO issues Content-Language: en-US To: Ken Brown , cygwin@cygwin.com References: <140f644c-4c30-9381-3917-d9f18a0de29d@cornell.edu> <5d69ee45-a393-bd54-2d7b-2d59117089f6@huarp.harvard.edu> <6a85ccdf-8e35-241b-ea63-bf9b5f4c85b8@huarp.harvard.edu> From: Norton Allen In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.9 required=5.0 tests=BAYES_00,KAM_DMARC_STATUS,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 9/19/2022 5:25 PM, Ken Brown wrote: > You're probably not calling select to check for read ready on > non-blocking FIFOs that have no writers. Exactly what I was thinking (while on the bus).