HPA and failed opcode was: 0x37 ?

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Hi all,

I get the following lines when starting my ide driver:

Probing IDE interface ide0...
hda: probing with STATUS(0x50) instead of ALTSTATUS(0xff)
hda: ST940813AM, ATA DISK drive
ide0 at 0xc3866000-0xc3866007,0xc3866010 on irq 30
hda: max request size: 1024KiB
hda: Host Protected Area detected.
        current capacity is 78140160 sectors (40007 MB)
        native  capacity is 185074430006016 sectors (94758108163 MB)
hda: task_no_data_intr: status=0x51 { DriveReady SeekComplete Error }
hda: task_no_data_intr: error=0x04 { DriveStatusError }
ide: failed opcode was: 0x37
hda: 78140160 sectors (40007 MB) w/8192KiB Cache, CHS=16383/255/63
hda: cache flushes supported
 hda: hda1


My quetsions are:

1. what's that 185074430006016 sectors native capacity about?
2. Opcode 0x37 seems to be WIN_SET_MAX_EXT.
   What does it mean if it fails?

Thanks a million.

(I am uisng linux 2.6.14 on an embedded ARM9 system.)

Steven

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