Created attachment 457110 [details] Dmesg erros Hello Guys, I've having some trouble on a new system I'm setting up. Dmesg errors attached. Kernels version impacted (at least): - gentoo-sources-4.4.26 - gentoo-sources-4.8.15 - gentoo-sources-4.9.0 With or without experimental patch, it's the same issue. Xen Version : app-emulation/xen-4.6.4-r3 app-emulation/xen-tools-4.6.4-r4 (same issue with xen 4.8) Kernel config (gentoo-sources 4.8.15) : http://pastebin.com/p0EcHjbu This is happening when I'm making "huge" I/O (20MB/s with and rsync for example) on a raid 5 RAID stack. I've to reset system to make it work again. Reproducible : ALWAYS (making the i/o, it crash in 2-5mins) Here is configuration : - 3x Hard Drives running on RAID 5 Software raid created by mdadm - On top of it, I'm running 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. All buit with : gcc (Gentoo 4.9.3 p1.5, pie-0.6.4) 4.9.3 Kernel bug ? Any idea on how to fix it ?
Created attachment 457112 [details] Emerge --info Don't think is relevant but just in case, emerge --info
I can confirm this bug doesn't exist with a RAID 1 stack instead of the RAID 5...
So what's not clear to me is this a domU or dom0? Is the oops in the kernel or the hypervisor? Does it appear to affect any other domUs if its a domU?
Hi Doug, dom0. The RAID stack of course is done on dom0. As the kernel crashes, everything is affected. Oops visible in the kernel. In order to reproduce, I can make the I/O even on dom0 or domU, same issue. Note : issue is happening even if no domU are running.
Is still still an issue on a more recent kernel/xen?
