From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id B8AB13858C2D for ; Tue, 16 Aug 2022 10:08:10 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org B8AB13858C2D Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-590-qxUXRyVDML-8XXPaawDa7Q-1; Tue, 16 Aug 2022 06:08:07 -0400 X-MC-Unique: qxUXRyVDML-8XXPaawDa7Q-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id F00C2299E767; Tue, 16 Aug 2022 10:08:06 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.39.192.98]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E7F51403178; Tue, 16 Aug 2022 10:08:05 +0000 (UTC) From: Florian Weimer To: Mark Wielaard Cc: Thomas Fitzsimmons , 'GNU C Library' , Wilco Dijkstra Subject: Re: [PATCH] Improve performance of IO locks References: <878rnoeja2.fsf@oldenburg.str.redhat.com> Date: Tue, 16 Aug 2022 12:08:03 +0200 In-Reply-To: (Mark Wielaard's message of "Tue, 16 Aug 2022 12:00:20 +0200") Message-ID: <87pmh0cxh8.fsf@oldenburg.str.redhat.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.85 on 10.11.54.10 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-Spam-Status: No, score=-5.2 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_NONE, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham 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-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 16 Aug 2022 10:08:11 -0000 * Mark Wielaard: > Yeah, I am actually surprised just reverting the patch fixed things. > But looking at the bunsen data for glibc-debian-ppc64 does seem to > show that the only thing changed is this particular patch. Runs before > it pass, runs after show lots of fails. > > https://builder.sourceware.org/testruns/?has_keyvalue_like_k=testrun.git_describe&has_keyvalue_like_v=%25glibc-debian-ppc64%25 How do I read this table? > The debian-ppc64 worker has GCC 11.2.0 and binutils 2.38 > https://builder.sourceware.org/buildbot/#/workers/10 > > But I don't see how the patch and the crash backtrace are related. It could be a change in relocation types used. Thanks, Florian