From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Brown Subject: Re: Creating RAID1 with bitmap fails Date: Wed, 30 May 2007 22:05:39 +1000 Message-ID: <18013.26771.126894.425898@notabene.brown> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: message from Jan Engelhardt on Wednesday May 30 Sender: linux-raid-owner@vger.kernel.org To: Jan Engelhardt Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Wednesday May 30, jengelh@linux01.gwdg.de wrote: > Hi, > > > the following command strangely gives -EIO ... > 12:27 sun:~ # mdadm -C /dev/md4 -l 1 -n 2 -e 1.0 -b internal /dev/ram0 > missing > > md: md4: raid array is not clean -- starting background reconstruction > md4: failed to create bitmap (-5) > md: pers->run() failed ... > mdadm: RUN_ARRAY failed: Input/output error > mdadm: stopped /dev/md4 > > Leaving out -b internal creates the array. /dev/ram0 or /dev/sda5 - EIO > happens on both. (But the disk is fine, like ram0) > Where could I start looking? > > Linux sun 2.6.21-1.3149.al3.8smp #3 SMP Wed May 30 09:43:00 CEST 2007 > sparc64 sparc64 sparc64 GNU/Linux > mdadm 2.5.4 I'm fairly sure this is fixed in 2.6.2. It is certainly worth a try. NeilBrown