Re: Recent ide patches and DMA

Kafu Nagai
2000-11-24T23:39:22Z

440BX with PIIX4 on BP6

>On Thu, Nov 23, 2000 at 01:09:35PM -0800, Kafu Nagai wrote:
>> With recent ide patches, the ide driver seems to try to use DMA mode even for a drive which dosen't support it. CONFIG_IDEDMA_PCI_AUTO is enabled but even so with the stock kernel this dosen't happen. older patches didn't have this behavior either. Is this change intentional ?
>>
>> hdc: 333630 sectors (171 MB) w/32KiB Cache, CHS=1011/15/22, DMA
>> Partition check:
>> hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 hda8 >
>> hdc:hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error }
>> hdc: dma_intr: error=0x04 { DriveStatusError }
>> hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error }
>> hdc: dma_intr: error=0x04 { DriveStatusError }
>> hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error }
>> hdc: dma_intr: error=0x04 { DriveStatusError }
>> hdc: dma_intr: status=0x51 { DriveReady SeekComplete Error }
>> hdc: dma_intr: error=0x04 { DriveStatusError }
>> hdc: DMA disabled
>> ide1: reset: success
>> hdc1
>>
>> ~ $ hdparm -i /dev/hdc
>>
>> /dev/hdc:
>>
>> Model=QUANTUM ELS170A, FwRev=4.20, SerialNo=166304085456
>> Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>5Mbs RotSpdTol>.5% }
>> RawCHS=1011/15/22, TrkSize=11264, SectSize=512, ECCbytes=4
>> BuffType=3(DualPortCache), BuffSize=32kB, MaxMultSect=8, MultSect=off
>> DblWordIO=no, OldPIO=2, DMA=no
>> CurCHS=1011/15/22, CurSects=333629, LBA=no
>
>Which chipset are you using?
>
>--
>Vojtech Pavlik
>SuSE Labs

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