From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neil Brown Subject: Re: problem with software raid1 on 2.6.22.10: check/rebuild hangs Date: Mon, 3 Dec 2007 14:00:50 +1100 Message-ID: <18259.29026.622217.229830@notabene.brown> References: <200712030305.50109.wolfgang.walter@studentenwerk.mhn.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: message from Wolfgang Walter on Monday December 3 Sender: linux-raid-owner@vger.kernel.org To: Wolfgang Walter Cc: mingo@redhat.com, linux-raid@vger.kernel.org List-Id: linux-raid.ids On Monday December 3, wolfgang.walter@studentenwerk.mhn.de wrote: > Hello, > > with kernel 2.6.22.10 checking a raid1 or rebuilding ist does not work on one > of our machines. After a short time the rebuild/check does not make progress > any more . Processes which then access the filesystems on those raids are > blocked. > > Nothing gets logged. Access to other filesystems works fine. > > If we boot 2.6.17.10 (the kernel we used befor upgrading to 2.6.22) the raids > the check/rebuild is done without any problems. > Sounds like a driver problem. Your symptoms are completely consistent with a request being submitted to the underlying device, and that request never completing. What controller runs your drives for you. You should probably report the problem to the relevant maintainer. Do you compile your own kernels? Would you be comfortable using "git bisect" to narrow down exactly which change breaks things? It should take more than a dozen or so tests. NeilBrown