Two issues with the patch...
msi has to be disabled for the Marvell or the driver load will throw a
"nobody cared" message and eventually hang before discovering all the
Light I/O works fine but heavy I/O generates
"exception Emask 0x0 Sact 0xb Serr 0x0 action 0x2 frozen"
Then softreset and identify failures.
Adding AHCI_FLAG_NO_NCQ to the flags fixes this.
I've been running with both these changes over your original patch for a
few months now with no problems. This is on a very heavily used 4 drive
Thanks for the work on the patch...george