> 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
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