[ltp] Host Protected Area (HPA) and kernel 2.6.10

T. Ivarsson linux-thinkpad@linux-thinkpad.org
Tue, 28 Dec 2004 05:16:37 -0500


I've made the jump from kernel 2.6.8.1 to 2.6.10. When checking /var/log/dm=
esg for the two versions, I notice that the Host Protected Area (HPA) gets =
disabled when I boot 2.6.10 [1], but not disabled with 2.6.8.1 [2].=20

How can I enable the HPA again?

BTW: When running 'make oldconfig' using my 2.6.8.1 config, the Cisco Airo =
35x driver got disabled somehow and I had to specify it to compile as a mod=
ule again. Not a good thing...

Thanks,
T.


[1] /var/log/dmesg for 2.6.10
------
hda: max request size: 128KiB
hda: Host Protected Area detected.
        current capacity is 71838709 sectors (36781 MB)
        native  capacity is 78140160 sectors (40007 MB)
hda: Host Protected Area disabled.
hda: 78140160 sectors (40007 MB) w/1768KiB Cache, CHS=3D65535/16/63, UDMA(1=
00)
hda: cache flushes not supported
 /dev/ide/host0/bus0/target0/lun0: p1 p2 < p5 p6 p7 p8 >
------

[2] /var/log/dmesg for 2.6.8.1
------
hda: max request size: 128KiB
hda: Host Protected Area detected.
        current capacity is 71838709 sectors (36781 MB)
        native  capacity is 78140160 sectors (40007 MB)
hda: 71838709 sectors (36781 MB) w/1768KiB Cache, CHS=3D65535/16/63, UDMA(1=
00)
 /dev/ide/host0/bus0/target0/lun0: p1 p2 < p5 p6 p7 p8 >
------


--=20
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