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=-6.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT 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 E68ACC43441 for ; Sun, 11 Nov 2018 22:46:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AAF2E21508 for ; Sun, 11 Nov 2018 22:46:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="or5077ux" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AAF2E21508 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391139AbeKLIgn (ORCPT ); Mon, 12 Nov 2018 03:36:43 -0500 Received: from mail.kernel.org ([198.145.29.99]:57504 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390249AbeKLIXc (ORCPT ); Mon, 12 Nov 2018 03:23:32 -0500 Received: from localhost (unknown [206.108.79.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 56D21223D8; Sun, 11 Nov 2018 22:33:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1541975615; bh=QyH75mlSMFzvkFUSSXhht9Gf7rGKuJuog/6be4hwcQA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=or5077uxXVH/JNFqrpkXDC0sudXqBX/Xe9/xAG/lNL5G/QpGVzyirM3Hzc+56r0fH ulWERheYFjXnzHp6OOCbEbfXELUSFhtEKvHNlXqu7JvMDGFjgGjILjiRdlmsoYEVp2 oEuUtMnNeUEv4YwaK+X7E4Uau+9Qs/VrTgQ+8W4Q= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "David S. Miller" , Jiri Olsa , Kan Liang , Arnaldo Carvalho de Melo , Sasha Levin Subject: [PATCH 4.9 022/141] perf cpu_map: Align cpu map synthesized events properly. Date: Sun, 11 Nov 2018 14:24:41 -0800 Message-Id: <20181111221630.785198849@linuxfoundation.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181111221627.853046496@linuxfoundation.org> References: <20181111221627.853046496@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Miller [ Upstream commit 0ed149cf5239cc6e7e65bf00f769e8f1e91076c0 ] The size of the resulting cpu map can be smaller than a multiple of sizeof(u64), resulting in SIGBUS on cpus like Sparc as the next event will not be aligned properly. Signed-off-by: David S. Miller Cc: Jiri Olsa Cc: Kan Liang Fixes: 6c872901af07 ("perf cpu_map: Add cpu_map event synthesize function") Link: http://lkml.kernel.org/r/20181011.224655.716771175766946817.davem@davemloft.net Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- tools/perf/util/event.c | 1 + 1 file changed, 1 insertion(+) --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -839,6 +839,7 @@ void *cpu_map_data__alloc(struct cpu_map } *size += sizeof(struct cpu_map_data); + *size = PERF_ALIGN(*size, sizeof(u64)); return zalloc(*size); }