libata seems doesn't work on SATA, F7

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Hi,
.
We want to see and erase hpa on FC7 for SATA hdd.
So added libata option on Grub and modprobe.conf.
We can see the HPA detection message on dmesg and
/var/log/messages.
But the setmax.c doesn't work to change max address.
Also "dd" command covering hpa are doesn't work
anymore. The process never ends.
I doubt that libata support SATA to disable hpa which
is said like the below.

>Please give it a test by booting it, and look >for
"Host Protected Area detected." If you're >feeling
brave, boot with "libata.ignore_hpa=1" to >disable the
host protected area (which should >enable your whole
disk).
.
Best regards,
Nobel


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