BTW: the change from apparently working but spewing errors back to not working is:

bbc24bb35020793b9e6fa2111b15882f0dbfe36e is the first broken commit
commit bbc24bb35020793b9e6fa2111b15882f0dbfe36e
Author: Guoqing Jiang <>
Date:   Mon May 9 10:22:58 2016 +0800

    super1: make the check for NodeNumUpdate more accurate
We missed to check the version is BITMAP_MAJOR_CLUSTERED
    or not, otherwise mdadm can't create array with other 1.x
    metadatas (1.0 and 1.1).
Signed-off-by: Guoqing Jiang <>
    Signed-off-by: Jes Sorensen <>

:100644 100644 972b4700455426d47f52141416d873b6c745fa07 
fa933676621f6431398192b1c0b26f3ce53deac3 M      super1.c

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