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SubjectUDMA on Dell Inspiron 8000
Greetings, I've been running Mandrake 8.0 on a new Dell Inspiron 8000 for
the past two weeks, and I was curious whether there's any reason that
autodma doesn't work for the IBM drive included with it, or whether it's
just a matter of not having a trusted/recognized IDE controller/drive
combination. I'm running 2.4.6-pre2, and enabling DMA manually works
great and performance is improved drastically (of course). Here's the
relevant portions of dmesg:

Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with
PCI_IDE: unknown IDE controller on PCI bus 00 device f9, VID=8086,
PCI_IDE: chipset revision 3
PCI_IDE: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xbfa0-0xbfa7, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0xbfa8-0xbfaf, BIOS settings: hdc:pio, hdd:pio
hda: IBM-DJSA-210, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: 19640880 sectors (10056 MB) w/384KiB Cache, CHS=1222/255/63
hdb: ATAPI 24X DVD-ROM drive, 128kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.12
Partition check:
hda: hda1 hda2 hda3 hda4

If there's anything else that might be useful, please CC me in the email.

Brian J. Conway

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