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=-15.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 30440C433E0 for ; Thu, 4 Mar 2021 00:06:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 01E1564F39 for ; Thu, 4 Mar 2021 00:06:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237096AbhCDAAB (ORCPT ); Wed, 3 Mar 2021 19:00:01 -0500 Received: from sender11-op-o11.zoho.eu ([31.186.226.225]:17271 "EHLO sender11-op-o11.zoho.eu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1448129AbhCCPXy (ORCPT ); Wed, 3 Mar 2021 10:23:54 -0500 ARC-Seal: i=1; a=rsa-sha256; t=1614781848; cv=none; d=zohomail.eu; s=zohoarc; b=jyOwMbcKQhT8jhTrWagygS8rqQBPQNnp4uPy9nS1KXUscLOJ5CEVBGWv3/Q35td1no+oXBQ8sbm8B5WIyJMCdm29EYMxuAxMhKCNB2/EhqGqfbgCuRFtYdUeBZQSjk83L+5ql2idJKS/sBAXuM6UaXK2LvRaUpSFAZwEwQN5iNI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.eu; s=zohoarc; t=1614781848; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:To; bh=WEglday9F+Cu/nMW2wdWWetKLScSqnn4UuUu/oCEAME=; b=ZpbxxYK9MJPgmgioXiWX71tjUNdAoLaqFt9RMPPRDR2dYKsnNHv5W4LPkPaiQ/Ox80LurcVm/hDqRF7Q3mr0DEsejrenxs84pqLacPh611S99a4rO2aPPI0rj1NSNVOYidUo8LrZslGHBl+HkxEwoVXVlharfzM8Wso9qxdWMlQ= ARC-Authentication-Results: i=1; mx.zohomail.eu; spf=pass smtp.mailfrom=jes@trained-monkey.org; dmarc=pass header.from= header.from= Received: from [192.168.99.29] (pool-72-69-75-15.nycmny.fios.verizon.net [72.69.75.15]) by mx.zoho.eu with SMTPS id 1614781846511738.6210972608803; Wed, 3 Mar 2021 15:30:46 +0100 (CET) Subject: Re: [PATCH] super1: fix Floating point exception To: Zhao Heming , linux-raid@vger.kernel.org Cc: lidong.zhong@suse.com, xni@redhat.com References: <1612000194-6015-1-git-send-email-heming.zhao@suse.com> From: Jes Sorensen Message-ID: <16ff61e7-b59c-639a-62ac-c6cacb1b4781@trained-monkey.org> Date: Wed, 3 Mar 2021 09:30:45 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <1612000194-6015-1-git-send-email-heming.zhao@suse.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-ZohoMailClient: External Precedence: bulk List-ID: X-Mailing-List: linux-raid@vger.kernel.org On 1/30/21 4:49 AM, Zhao Heming wrote: > write_bitmap1 didn't check return value of locate_bitmap1, which will > operate bitmap area under invalid bitmap info. > > mdadm core dumped when doing below steps: > ``` > node1 # mdadm -C /dev/md0 -b none -e 1.2 -n 2 -l mirror /dev/sda /dev/sdb > node1 # mdadm -Ss > node1 # mdadm -A -U home-cluster --home-cluster=abc /dev/md0 /dev/sda /dev/sdb > Floating point exception (core dumped) > ``` > > Signed-off-by: Zhao Heming > --- > super1.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) Applied! Thanks, Jes