On 01/11/17 11:52, Shaohua Li wrote:

On Tue, Jan 10, 2017 at 11:49:04AM -0600, Bruce Dubbs wrote:

quoted

Jes Sorensen wrote:

quoted

I am pleased to announce the availability of
    mdadm version 4.0

It is available at the usual places:
    http://www.kernel.org/pub/linux/utils/raid/mdadm/
and via git at
    git://git.kernel.org/pub/scm/utils/mdadm/mdadm.git
    http://git.kernel.org/cgit/utils/mdadm/

The update in major version number primarily indicates this is a
release by it's new maintainer. In addition it contains a large number
of fixes in particular for IMSM RAID and clustered RAID support.  In
addition this release includes support for IMSM 4k sector drives,
failfast and better documentation for journaled RAID.

Thank you for the new release.  Unfortunately I get 9 failures running the
test suite:

tests/00raid1...          FAILED
tests/07autoassemble...   FAILED
tests/07changelevels...   FAILED
tests/07revert-grow...    FAILED
tests/07revert-inplace... FAILED
tests/07testreshape5...   FAILED
tests/10ddf-fail-twice... FAILED
tests/20raid5journal...   FAILED
tests/10ddf-incremental-wrong-order...  FAILED

Yep, several tests usually fail. It appears some checks aren't always good.  At
least the 'check' function for reshape/resync isn't reliable in my test, I saw
07changelevelintr fails frequently.

That is my experience as well - some of them are affected by the kernel
version too. We probably need to look into making them more reliable.

I am also not sure how reliable the DDF tests are on systems without DDF
support.

Cheers,
Jes