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 ESMTP id A69BA385741D for ; Mon, 30 Aug 2021 09:37:40 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org A69BA385741D Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-104-eE41dxOcPs6VXiRHEAlFew-1; Mon, 30 Aug 2021 05:37:39 -0400 X-MC-Unique: eE41dxOcPs6VXiRHEAlFew-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 3B58C760C1; Mon, 30 Aug 2021 09:37:38 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.39.194.140]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 62B5C60C9F; Mon, 30 Aug 2021 09:37:37 +0000 (UTC) From: Florian Weimer To: Adhemerval Zanella Cc: libc-alpha@sourceware.org Subject: Re: [PATCH v2 15/19] nptl: Use tidlock when accessing TID on pthread_getname_np References: <20210823195047.543237-1-adhemerval.zanella@linaro.org> <20210823195047.543237-16-adhemerval.zanella@linaro.org> <87ilzs5l0a.fsf@oldenburg.str.redhat.com> Date: Mon, 30 Aug 2021 11:37:35 +0200 In-Reply-To: (Adhemerval Zanella's message of "Thu, 26 Aug 2021 14:45:48 -0300") Message-ID: <87czpvs274.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 2.79 on 10.5.11.12 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-Spam-Status: No, score=-6.7 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) 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: Mon, 30 Aug 2021 09:37:44 -0000 * Adhemerval Zanella: >> I wonder if we should cache the thread name in the TCB. That would be >> nice for debugging coredumps, too. > > This does not make sense, although it would require some memory > allocation. Isn't the name limited to 16 bytes? So it wouldn't need a separate allocation. Thanks, Florian