From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 6B412382D832; Thu, 21 Jan 2021 13:00:22 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6B412382D832 From: "kcy at codesourcery dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug libgomp/98738] task-detach-6.f90 hangs intermittently Date: Thu, 21 Jan 2021 13:00:21 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: libgomp X-Bugzilla-Version: 11.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: kcy at codesourcery dot com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 11.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 21 Jan 2021 13:00:22 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98738 --- Comment #9 from Kwok Yeung --- I have a patch for this now. In addition to posting other semaphores in omp_fulfill_event, GOMP_taskwait also needs to be made aware of detached ta= sks. Also, task_running_count should not include completed tasks that are waiting for event completion, since these are not really still running, and may lea= d to a failure to wake up the barrier thread when required.=