> On Wed, 2012-01-18 at 14:44 +0100, Jim Meyering wrote: >> [Following up on this thread: >> http://thread.gmane.org/gmane.linux.kernel.device-mapper.devel/14999] >> Alasdair G Kergon wrote: >> > Try >> > blkdev --flushbufs >> > after any cmd that writes to a dev to see if that makes any difference. >> >> Thanks for the work-around. >> Using "blockdev --flushbufs $dev" does indeed make parted >> behave the same with dm-backed storage as with other devices. Thanks Jim! That reminds me we've already seen something similar and there's still workaround with drop_caches in ovirt-config-boot installer: # flush to sync DM and blockdev, workaround from rhbz#623846#c14 echo 3 > /proc/sys/vm/drop_caches But 623846 was supposed to be fixed in RHEL 6.0 ? Alan -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel