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SubjectRe: DMA problems w/ PIIX3 IDE, 2.4.20-pre4-ac2
On 16 Sep 2002 15:46:35 +0100, Alan Cox wrote:

>On Mon, 2002-09-16 at 15:26, Florian Hinzmann wrote:

>> > On Mon, 2002-09-16 at 12:17, Florian Hinzmann wrote:
>> >> kernel: hdb: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error }
>> >> kernel: hdb: read_intr: error=0x10 { SectorIdNotFound }, LBAsect=97567071, high=5, lo
>> >> kernel: hdb: read_intr: status=0x59 { DriveReady SeekComplete DataRequest Error }
>> >
>> > Which is the drive reporting a physical media error
>>
>> Which seems to exist only while using the named combinations of DMA access
>> and kernel versions. While using i.e. 2.4.19 without DMA I can access the same data,
>> dd the whole disk to /dev/null or run badblock checks without finding
>> any physical media errors.
>>
>> 2.4.19 should complain, too, if there is a physical error indeed, right?
>
>The "sectoridnotfound" return is from the drive. That makes it very hard
>to believe it isnt a physical error

It might be a seek beyond end-of-media error as well (see ATA spec for
error reporting in this case: either ABRT or IDNF shall be set)!

Ciao,
Dani


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