Re: Crash and rebuild...

On Thursday February 2, neilb@suse.de wrote:

On Thursday February 2, linux-raid@moro.us wrote:

quoted

In any case, I have included the relevant dmesgs and a --examine and
--detail for all drives as soon as the second (2.6.15.1) weird rebuild
started. If you need any more info I'll do my best to provide it, but I
thought I should at least report this.

Thanks for all the details.  I can see what is happening.

sdj1 (the failed drive) is claiming the same slot in the array as sdo1
(the spare drive that has been rebuilt), so sdo1 gets rejected.
sdj1 should be rejected before that because of the old 'event' count,
but the 'autorun' code isn't doing that check.

I'll see what I can do about fixing this.

I should have added:
  If you
    mdadm --zero-superblock /dev/sdj1

  the problem will go away.

NeilBrown