From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: Kernel bug triggered in multipath Date: Sat, 15 Mar 2014 06:23:36 -0700 Message-ID: <20140315132336.GC13647@infradead.org> References: <1394795632-86434-1-git-send-email-hare@suse.de> <20140314111520.GA17288@infradead.org> <20140314162111.GB14188@redhat.com> <20140314162615.GC14188@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from bombadil.infradead.org ([198.137.202.9]:45935 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755618AbaCONXj (ORCPT ); Sat, 15 Mar 2014 09:23:39 -0400 Content-Disposition: inline In-Reply-To: <20140314162615.GC14188@redhat.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Mike Snitzer Cc: Christoph Hellwig , Hannes Reinecke , James Bottomley , linux-scsi@vger.kernel.org, dm-devel@redhat.com On Fri, Mar 14, 2014 at 12:26:15PM -0400, Mike Snitzer wrote: > On Fri, Mar 14 2014 at 12:21pm -0400, > Mike Snitzer wrote: > > > I have no problem with this patch, added safety-net and all, but > > bottomline: if scsi_dh interfaces were being called against a DM > > multipath request_queue that is a bug. > > Sorry, s/DM multipath request_queue/non-SCSI requeue_queue/ > > > In practice that never happens > > in supported configurations. AFAICT, Hannes just stumbled upon it cause > > he was trying to get cciss working with dm-multipath. What prevents an admin from trying to configure a path selector for a non-scsi device currently?