From owner-freebsd-questions@freebsd.org Tue Mar 19 20:05:53 2019 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5000C1535932 for ; Tue, 19 Mar 2019 20:05:53 +0000 (UTC) (envelope-from guru@unixarea.de) Received: from ms-10.1blu.de (ms-10.1blu.de [178.254.4.101]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 3B1896DA3A for ; Tue, 19 Mar 2019 20:05:51 +0000 (UTC) (envelope-from guru@unixarea.de) Received: from [87.123.203.179] (helo=[192.168.44.224]) by ms-10.1blu.de with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.86_2) (envelope-from ) id 1h6KzW-0002eE-Mf for freebsd-questions@freebsd.org; Tue, 19 Mar 2019 21:05:42 +0100 From: Matthias Apitz To: Subject: Re: Resetting a serial port Date: Tue, 19 Mar 2019 21:05:42 +0100 User-Agent: Dekko/0.6.20; Qt/5.4.1; ubuntumirclient; Linux; MIME-Version: 1.0 Message-ID: <73f31be5-4e23-4b7c-92fe-56adb6501895@unixarea.de> In-Reply-To: <20190319193907.b0f51931.freebsd@edvax.de> References: <6623dd04-822d-dbdb-d2f5-3021debc1c2a@netfence.it> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Con-Id: 51246 X-Con-U: 0-guru X-Originating-IP: 87.123.203.179 X-Rspamd-Queue-Id: 3B1896DA3A X-Spamd-Bar: ----- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-5.48 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; HAS_XOIP(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; TO_DN_NONE(0.00)[]; DMARC_NA(0.00)[unixarea.de]; AUTH_NA(1.00)[]; RCPT_COUNT_ONE(0.00)[1]; IP_SCORE(-3.29)[ip: (-9.22), ipnet: 178.254.0.0/19(-4.00), asn: 42730(-3.20), country: DE(-0.01)]; MX_GOOD(-0.01)[mail.unixarea.de]; NEURAL_HAM_SHORT(-0.99)[-0.988,0]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; R_SPF_NA(0.00)[]; RCVD_IN_DNSWL_LOW(-0.10)[101.4.254.178.list.dnswl.org : 127.0.5.1]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:42730, ipnet:178.254.0.0/19, country:DE]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Mar 2019 20:05:53 -0000 Am Dienstag, 19. M=C3=A4rz 2019 19:39:07 CET schrieb Polytropon=20 : > On Tue, 19 Mar 2019 17:57:41 +0100, Andrea Venturoli wrote: >> I've got a box connected to an hardware device through a serial port. >> This is a real RS-232 on the motherboard, not an USB adapter. >>=20 >> From time to time, the serial port will got stuck and stop=20 >> communicating with the device. >> This is not a problem with the device, as powering it on and off won't=20 >> help. Instead rebooting the whole FreeBSD server will solve. >=20 What software is running on that serial interface? What is the exact device=20= name? matthias --=20 Sent from my Ubuntu phone http://www.unixarea.de/