From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jes Sorensen Subject: Re: PROBLEM: Kernel BUG with raid5 soft + Xen + DRBD - invalid opcode Date: Fri, 30 Dec 2016 15:54:00 -0500 Message-ID: References: <585D6C34.2020908@gmail.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <585D6C34.2020908@gmail.com> (MasterPrenium's message of "Fri, 23 Dec 2016 19:25:56 +0100") Sender: linux-kernel-owner@vger.kernel.org To: MasterPrenium Cc: linux-kernel@vger.kernel.org, xen-users@lists.xen.org, linux-raid@vger.kernel.org, shli@kernel.org, "MasterPrenium@gmail.com" , xen-devel@lists.xenproject.org List-Id: linux-raid.ids MasterPrenium writes: > Hello Guys, > > I've having some trouble on a new system I'm setting up. I'm getting a > kernel BUG message, seems to be related with the use of Xen (when I > boot the system _without_ Xen, I don't get any crash). > Here is configuration : > - 3x Hard Drives running on RAID 5 Software raid created by mdadm > - On top of it, DRBD for replication over another node (Active/passive cluster) > - On top of it, a BTRFS FileSystem with a few subvolumes > - On top of it, XEN VMs running. > > The BUG is happening when I'm making "huge" I/O (20MB/s with a rsync > for example) on the RAID5 stack. > I've to reset system to make it work again. > > Reproducible : ALWAYS (making the i/o, it crash in 2-5mins). Also > reproducible on another system with the same hardware. > > Kernel versions impacted (at least): kernel-4.4.26, kernel-4.8.15, kernel-4.9.0 Well you have one foreign object in there that is not part of the kernel and which shows up in the OOPS: DRDB What happens when you remove that from the equation? Jes