From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dedi548.your-server.de (dedi548.your-server.de [85.10.215.148]) by sourceware.org (Postfix) with ESMTPS id D7ED33858415 for ; Mon, 1 Aug 2022 07:52:20 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org D7ED33858415 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=embedded-brains.de Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=embedded-brains.de Received: from sslproxy02.your-server.de ([78.47.166.47]) by dedi548.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1oIQDq-0001jd-VG; Mon, 01 Aug 2022 09:52:19 +0200 Received: from [82.100.198.138] (helo=mail.embedded-brains.de) by sslproxy02.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oIQDr-000VP1-54; Mon, 01 Aug 2022 09:52:19 +0200 Received: from localhost (localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id D18A94800DF; Mon, 1 Aug 2022 09:52:18 +0200 (CEST) Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id 9bwUVSXmjlnx; Mon, 1 Aug 2022 09:52:18 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id 9673948015E; Mon, 1 Aug 2022 09:52:18 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.eb.localhost Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id JfuFLoBL5H07; Mon, 1 Aug 2022 09:52:18 +0200 (CEST) Received: from [10.10.171.6] (unknown [10.10.171.6]) by mail.embedded-brains.de (Postfix) with ESMTPSA id 5741B4800DF; Mon, 1 Aug 2022 09:52:18 +0200 (CEST) Message-ID: Date: Thu, 4 Aug 2022 01:44:10 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: pthread_mutex_timedlock() vs. clock_settime() Content-Language: en-US To: =?UTF-8?Q?Jo=c3=abl_Kr=c3=a4hemann?= Cc: libc-help@sourceware.org References: From: Sebastian Huber In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable X-Authenticated-Sender: smtp-embedded@poldinet.de X-Virus-Scanned: Clear (ClamAV 0.103.6/26615/Thu Jul 28 09:58:07 2022) X-Spam-Status: No, score=-3.6 required=5.0 tests=BAYES_00, DATE_IN_FUTURE_48_96, KAM_DMARC_STATUS, NICE_REPLY_A, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: libc-help@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-help mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 01 Aug 2022 07:52:22 -0000 Hello Jo=C3=ABl, On 01/08/2022 09:10, Jo=C3=ABl Kr=C3=A4hemann wrote: > Hi Sebastian, >=20 > You have a dead-lock, probably. I just looked at your code. You are > using non-recursive mutices and I think this mutex was locked twice by > the very same thread. thanks for having a look at the test case. Sorry for being so blind, but=20 which mutex is where in the code locked twice by the same thread? If I omit the mutex test case by starting with ACTION_CND_WAIT: for (action =3D ACTION_CND_WAIT; action < ACTION_TERMINATE; ++action) = { event_post(&ctx->action, action); Then the test runs fine: *** timeout finite *** pthread_cond_timedwait wake up pthread_cond_timedwait: actual 'Connection timed out', expected=20 'Connection timed out' pthread_rwlock_timedrdlock wake up pthread_rwlock_timedrdlock: actual 'Connection timed out', expected=20 'Connection timed out' pthread_rwlock_timedwrlock wake up pthread_rwlock_timedwrlock: actual 'Connection timed out', expected=20 'Connection timed out' sem_timedwait wake up sem_timedwait: actual 'Connection timed out', expected 'Connection timed=20 out' mq_send mq_timedsend wake up mq_timedsend: actual 'Connection timed out', expected 'Connection timed o= ut' mq_receive mq_timedreceive wake up mq_timedreceive: actual 'Connection timed out', expected 'Connection=20 timed out' clock_nanosleep wake up clock_nanosleep: actual 'Success', expected 'Success' --=20 embedded brains GmbH Herr Sebastian HUBER Dornierstr. 4 82178 Puchheim Germany email: sebastian.huber@embedded-brains.de phone: +49-89-18 94 741 - 16 fax: +49-89-18 94 741 - 08 Registergericht: Amtsgericht M=C3=BCnchen Registernummer: HRB 157899 Vertretungsberechtigte Gesch=C3=A4ftsf=C3=BChrer: Peter Rasmussen, Thomas= D=C3=B6rfler Unsere Datenschutzerkl=C3=A4rung finden Sie hier: https://embedded-brains.de/datenschutzerklaerung/