From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com ([209.132.183.28]:39970 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933799AbcKHVIs (ORCPT ); Tue, 8 Nov 2016 16:08:48 -0500 Date: Tue, 8 Nov 2016 16:08:46 -0500 From: Mike Snitzer To: Jens Axboe Cc: Logan Gunthorpe , Christoph Hellwig , linux-block@vger.kernel.org Subject: Re: BUG: Hung task timeouts in for-4.10/dio Message-ID: <20161108210846.GA2729@redhat.com> References: <366c9429-1bf8-a385-c8b3-a7e6c06a9907@deltatee.com> <8eed541f-b4c2-37c9-6650-216f3d0aa92f@fb.com> <21f0cddd-28d9-790d-b4fc-4635cca77ea8@deltatee.com> <9fe151a1-2d9f-28ef-25a7-bbcb01d8d972@fb.com> <6997fb64-aaac-208f-fa89-b8b4567f7321@fb.com> <6d532d4a-8d35-f610-65ed-efef949a3686@fb.com> <84693d82-b8dc-42b3-03da-055def7499a0@deltatee.com> <1e0e590b-fde3-a86d-bc60-8e5465928533@fb.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1e0e590b-fde3-a86d-bc60-8e5465928533@fb.com> Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org On Tue, Nov 08 2016 at 3:21pm -0500, Jens Axboe wrote: > On 11/08/2016 12:55 PM, Logan Gunthorpe wrote: > >Hey, > > > >I've attached the output of dmesg from a working boot and the output of > >mount. > > > >Pretty much all the file systems are ext4. We have some experimental > >nvme devices in this system which I did try removing to eliminate that > >possibility. > > > >Let me know if you need anything else. I'm not seeing Logan's above message (with dmesg) on linux-block archives. So I cannot yet appreciate which DM targets are in play. > You're using dm, that might be related. Mike, have you tried booting > for-4.10/block and checking if dm works fine? I haven't tried for-4.10/block yet. But I should be able to try it this week.