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    SubjectRe: VIA/PDC/Athlon
    Alan Cox wrote:
    >
    > RH 2.4.2-2 and 2.4.4-ac9 are I believe the same driver exactly. 2.4.3 is
    > an ancient known not to work well driver

    Ummm... Here's stripped dmesg of both kernels... Is this compiler thingie or
    Athlon optimizations?
    Notice also different detected PDC20265 BIOS settings! So 2.4.4-ac9 detects
    those BIOS settings correctly and 2.4.2-2 doesn't. That's probably reason
    why 2.4.2-2 works?

    --- 8< ---

    Linux version 2.4.4-ac9 (root@davinci) (gcc version 2.95.3 20010315
    (release)) #1 Wed May 16 17:37:30 EEST 2001

    Uniform Multi-Platform E-IDE driver Revision: 6.31
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    VP_IDE: IDE controller on PCI bus 00 dev 21
    VP_IDE: chipset revision 6
    VP_IDE: not 100% native mode: will probe irqs later
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci00:04.1
    ide0: BM-DMA at 0xb800-0xb807, BIOS settings: hda:DMA, hdb:DMA
    PDC20265: IDE controller on PCI bus 00 dev 88
    PCI: Found IRQ 10 for device 00:11.0
    PDC20265: chipset revision 2
    PDC20265: not 100% native mode: will probe irqs later
    PDC20265: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode.
    ide2: BM-DMA at 0x7400-0x7407, BIOS settings: hde:DMA, hdf:DMA
    ide3: BM-DMA at 0x7408-0x740f, BIOS settings: hdg:DMA, hdh:DMA
    hda: IBM-DTLA-307030, ATA DISK drive
    hdb: SONY CDU4811, ATAPI CD/DVD-ROM drive
    hde: IBM-DTLA-307030, ATA DISK drive
    hdf: IBM-DTLA-307030, ATA DISK drive
    hdg: IBM-DTLA-307030, ATA DISK drive
    hdh: IBM-DTLA-307030, ATA DISK drive
    ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    ide2 at 0x8800-0x8807,0x8402 on irq 10
    ide3 at 0x8000-0x8007,0x7802 on irq 10
    hda: 60036480 sectors (30739 MB) w/1916KiB Cache, CHS=3737/255/63, UDMA(100)
    hde: 60036480 sectors (30739 MB) w/1916KiB Cache, CHS=59560/16/63, UDMA(100)
    hdf: 60036480 sectors (30739 MB) w/1916KiB Cache, CHS=59560/16/63, UDMA(100)
    hdg: 60036480 sectors (30739 MB) w/1916KiB Cache, CHS=59560/16/63, UDMA(100)
    hdh: 60036480 sectors (30739 MB) w/1916KiB Cache, CHS=59560/16/63, UDMA(100)
    Partition check:
    hda:hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
    hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
    hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
    hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
    hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
    hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
    hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
    hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
    ide0: reset: success
    hda1 hda2 hda3 hda4
    hde: hde1 hde2 hde3 hde4
    hdf: unknown partition table
    hdg: unknown partition table
    hdh: unknown partition table

    --- 8< ---

    Linux version 2.4.2-2 (root@porky.devel.redhat.com) (gcc version 2.96
    20000731 (Red Hat Linux 7.1 2.96-79)) #1 Sun Apr 8 20:41:30 EDT 2001

    Uniform Multi-Platform E-IDE driver Revision: 6.31
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    VP_IDE: IDE controller on PCI bus 00 dev 21
    VP_IDE: chipset revision 6
    VP_IDE: not 100% native mode: will probe irqs later
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci00:04.1
    ide0: BM-DMA at 0xb800-0xb807, BIOS settings: hda:DMA, hdb:DMA
    PDC20265: IDE controller on PCI bus 00 dev 88
    PCI: Found IRQ 10 for device 00:11.0
    PDC20265: chipset revision 2
    PDC20265: not 100% native mode: will probe irqs later
    PDC20265: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode.
    ide2: BM-DMA at 0x7400-0x7407, BIOS settings: hde:DMA, hdf:pio
    ide3: BM-DMA at 0x7408-0x740f, BIOS settings: hdg:pio, hdh:pio
    hda: IBM-DTLA-307030, ATA DISK drive
    hdb: SONY CDU4811, ATAPI CD/DVD-ROM drive
    hde: IBM-DTLA-307030, ATA DISK drive
    hdf: IBM-DTLA-307030, ATA DISK drive
    hdg: IBM-DTLA-307030, ATA DISK drive
    hdh: IBM-DTLA-307030, ATA DISK drive
    ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    ide2 at 0x8800-0x8807,0x8402 on irq 10
    ide3 at 0x8000-0x8007,0x7802 on irq 10
    hda: 60036480 sectors (30739 MB) w/1916KiB Cache, CHS=3737/255/63, UDMA(33)
    hde: 60036480 sectors (30739 MB) w/1916KiB Cache, CHS=59560/16/63, UDMA(100)
    hdf: 60036480 sectors (30739 MB) w/1916KiB Cache, CHS=59560/16/63, UDMA(100)
    hdg: 60036480 sectors (30739 MB) w/1916KiB Cache, CHS=59560/16/63, UDMA(100)
    hdh: 60036480 sectors (30739 MB) w/1916KiB Cache, CHS=59560/16/63, UDMA(100)
    Partition check:
    hda: hda1 hda2 hda3 hda4
    hde: hde1 hde2 hde3 hde4
    hdf: unknown partition table
    hdg: unknown partition table
    hdh: unknown partition table

    --- 8< ---

    - Jussi Laako

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