From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751932Ab0CSK3a (ORCPT ); Fri, 19 Mar 2010 06:29:30 -0400 Received: from mail-pw0-f46.google.com ([209.85.160.46]:45275 "EHLO mail-pw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750844Ab0CSK32 (ORCPT ); Fri, 19 Mar 2010 06:29:28 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=VH8Xmjw4nvGkukzXtjfzNlfSQnJGSVwMRnXwCFiyKFEgdTSWdAeqlYxciIGB7whQg/ joAzj4KrrRiKieTVjRI2diCeJ5eENo5TxZ3mZTVlVJUZqa4dmkxAwOj7e2tJCKjA5HFb 6gVeA+pM5avgq4afWNdcqW9wvA4rN7YH/AyUY= MIME-Version: 1.0 Date: Fri, 19 Mar 2010 18:29:28 +0800 Message-ID: Subject: BUG:write data to degrade raid5 From: jin zhencheng To: neilb@suse.de, linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org hi; i use kernel is 2.6.26.2 what i do as follow: 1, I create a raid5: mdadm -C /dev/md5 -l 5 -n 4 /dev/sda /dev/sdb /dev/sdc /dev/sdd --metadata=1.0 --assume-clean 2, dd if=/dev/zero of=/dev/md5 bs=1M & write data to this raid5 3, mdadm --manage /dev/md5 -f /dev/sda 4 mdadm --manage /dev/md5 -f /dev/sdb if i faild 2 disks ,then the OS kernel display OOP error and kernel down do somebody know why ? Is MD/RAID5 bug ?