retitle 637234 linux-image-3.0.0-1-686-pae: I/O errors using ext4 under xen (also affects ext3 as of linux-image-3.1.0-1-amd64 et al) thanks
[note that I've stripped off the CC to xen-devel in this comment, but have no objection to it being put back if it makes sense] On Wed, Sep 07, 2011 at 08:29:38AM -0400, Konrad Rzeszutek Wilk wrote: > On Wed, Sep 07, 2011 at 02:51:04AM +0100, Ben Hutchings wrote: > > On Mon, 2011-08-29 at 10:08 -0400, Konrad Rzeszutek Wilk wrote: > > [...] > > > Oh, I think I know _exactly_ what bug that is: > > > > > > This git commit: > > > 280802657fb95c52bb5a35d43fea60351883b2af "xen/blkback: When writting > > > barriers set the sector number to zero" > > > has to be reverted. Specifically: > > > > > > commit 3f963cae3ef35d26fdd899c08797a598c5ca3e9b > > > Author: Jeremy Fitzhardinge <jeremy.fitzhardi...@citrix.com> > > > Date: Tue Jul 19 16:44:42 2011 -0700 > > > > > > Revert "xen/blkback: When writting barriers set the sector number to > > > zero..." > > [...] > > > and this one added: > > > > > > 25266338a41470a21e9b3974445be09e0640dda7 > > > xen/blkback: don't fail empty barrier requests > > [...] > > > > Which repository are these in? > > Jeremy's: git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git This problem is also present with ext3 by default now, following the barriers-by-default change in Linux 3.1 (I'm seeing the problems with 3.1.4-1 domU and squeeze dom0; the barrier=0 workaround works). If I'm not confused, this message from Konrad is about the same problem, and points to another possible fix: <http://lists.xen.org/archives/html/xen-devel/2011-12/msg00306.html> I suspect that over time this will hit a lot of people on domU upgrades from squeeze to wheezy - and it needs to be fixed in the dom0 kernel, which presumably means a point release update. Cheers, Dominic. -- Dominic Hargreaves | http://www.larted.org.uk/~dom/ PGP key 5178E2A5 from the.earth.li (keyserver,web,email) -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20111211220245.gq4...@urchin.earth.li
