Bug#568922: mdadm: data-check of RAID array md0 results in soft lockup of CPU's

[Tim Small]

The speed looks fine from hdparm -t , so maybe it's not that.  On my
systems, the hdparm -t results increased by a factor of 3 when I:

echo 2 > /sys/block/sda/device/queue_depth

Do the drives look healthy based on the output of smartctl -a ?

i.e. Raw values of pending sector , and reallocated sector counts +
SMART error log contents?

Ta,

Tim.