Alan Pevec wrote: >> 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 ? FYI, Niels de Vos has just posted a patch that should fix this: http://thread.gmane.org/gmane.linux.kernel/1241227 With that, maybe you'll be able to remove that other work-around. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
