On Sat, Jan 24, 2015 at 10:44 PM, Wesley W. Terpstra <wesley@xxxxxxxxxxx> wrote:
> The reshape was going fine and was probably
> around 50% done when the system was rebooted.
It is also possible the system was hung, but continued the reshape
until completion.
> First, it is obviously the last test in super_1_load that is rejecting
> the array. The superblock reports more sectors than are calculated, so
> the check
> if (sectors < le64_to_cpu(sb->data_size)) {
> fails.
Thus, an alternative explanation could be that the the sb->data_size
was not updated after the reshape completed. The superblocks have a
"Feature Map: 0x0" according to mdadm. I gather from reading
linux/raid/md_p.h that it should at least have
MD_FEATURE_RESHAPE_ACTIVE, if the reshape were still in progress.
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