Re: do_md_run returned -22 [Was: 2.6.24-rc8-mm1]

On Thursday January 17, akpm@linux-foundation.org wrote:

On Thu, 17 Jan 2008 16:23:30 +0100 Jiri Slaby [off-list ref] wrote:

quoted

On 01/17/2008 11:35 AM, Andrew Morton wrote:

quoted

ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.24-rc8/2.6.24-rc8-mm1/

still the same md issue (do_md_run returns -22=EINVAL) as in -rc6-mm1 reported 
by Thorsten here:
http://lkml.org/lkml/2007/12/27/45

hm, I must have been asleep when that was reported.  Neil, did you see it?

No, even though it was Cc:ed to me - sorry.
Maybe a revised subject line would have helped... maybe not.

quoted

Is there around any fix for this?

Well, we could bitbucket md-allow-devices-to-be-shared-between-md-arrays.patch

Yeah, do that.  I'll send you something new.
I'll move that chunk into a different patch and add the extra bits
needed to make that test correct in *all* cases rather than just the
ones I was thinking about at the time.
My test suit does try in-kernel-autodetect (the problem case) but it
didn't catch this bug due to another bug.  I'll fix that too.

Thanks,
NeilBrown