On Wed, Feb 27, 2013 at 01:04:14AM +0000, Alasdair G Kergon wrote: > (Quick pointers that might be relevant) > > EAGAIN, I'm not aware of dm itself returning that on the i/o path. Neither am I, but it's coming from somewhere in the IO path... > For 3.8 issues, read dm-devel around https://www.redhat.com/archives/dm-devel/2013-February/msg00086.html > (I queued the dm-side fixes for linux-next earlier today) It's reproducable on lots of different kernels, apparently - 3.8, 3.4.33, CentOS 6.3, debian sid/wheezy and Fedora 18 were mentioned specifically by the OP - so it doesn't look like a recent regression or constrained to a specific kernel. > For pvmove, check exactly which version and whether discards are enabled: there > was a userspace bug for a short period some time ago when discards were enabled. The version I used to reproduce on a 3.8.0 kernel was: $ pvmove --version LVM version: 2.02.95(2) (2012-03-06) Library version: 1.02.74 (2012-03-06) Driver version: 4.23.1 >From Debian unstable. Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
