From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9CB25C433DF for ; Sun, 2 Aug 2020 14:20:14 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4867B20759 for ; Sun, 2 Aug 2020 14:20:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4867B20759 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4BKNT62282zDqBc for ; Mon, 3 Aug 2020 00:20:10 +1000 (AEST) Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4BKMYn4TGczDqPy for ; Sun, 2 Aug 2020 23:39:09 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: by ozlabs.org (Postfix, from userid 1034) id 4BKMYm44Vvz9sSG; Sun, 2 Aug 2020 23:39:08 +1000 (AEST) From: Michael Ellerman To: Harish , mpe@ellerman.id.au In-Reply-To: <20200609081423.529664-1-harish@linux.ibm.com> References: <20200609081423.529664-1-harish@linux.ibm.com> Subject: Re: [PATCH v3] selftests: powerpc: Fix CPU affinity for child process Message-Id: <159637552967.48736.853088921052517044.b4-ty@ellerman.id.au> Date: Sun, 2 Aug 2020 23:39:08 +1000 (AEST) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: srikar@linux.vnet.ibm.com, kamalesh@linux.vnet.ibm.com, shiganta@in.ibm.com, sathnaga@linux.vnet.ibm.com, sandipan@linux.ibm.com, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Tue, 9 Jun 2020 13:44:23 +0530, Harish wrote: > On systems with large number of cpus, test fails trying to set > affinity by calling sched_setaffinity() with smaller size for > affinity mask. This patch fixes it by making sure that the size of > allocated affinity mask is dependent on the number of CPUs as > reported by get_nprocs(). Applied to powerpc/next. [1/1] selftests/powerpc: Fix CPU affinity for child process https://git.kernel.org/powerpc/c/854eb5022be04f81e318765f089f41a57c8e5d83 cheers