[dm-devel] dm: dm-cache fails to write the cache device in writethrough mode

[Alasdair G Kergon]

On Fri, Mar 22, 2013 at 10:15:49PM -0700, Darrick J. Wong wrote:
> Interesting ... if I set up this:
> # echo "0 67108864 linear /dev/sda 0" | dmsetup create origin
> And then repeat the test, but using /dev/mapper/origin as the origin instead
> of /dev/sda, the problem goes away.
 
So that looks like an easy and correct workaround for now.

Alasdair