Re: Kernel 2.6.17 and RAID5 Grow Problem (critical section backup)

[Petr Vyskocil]

> > > Hm, what's superblock 0.91? It is not mentioned in mdadm.8.
> > Not sure, the block version perhaps?
> Well yes of course, but what characteristics? The manual only lists
>  0, 0.90, default
>  1, 1.0, 1.1, 1.2
> No 0.91 :(


AFAICR superblock version gets raised by 0.01 for the duration of 
reshape, so that non-reshape aware kernels do not try to assemble it 
(and cause data corruption).

Petr

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