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    SubjectRe: ALI15X3 (was: Problems with Maxtor 4G160J8 and 2.4.19-* +/- ac*)
    On Sun, Jun 23, 2002 at 04:38:44PM +0200, Lars Magne Ingebrigtsen wrote:
    > Lars Magne Ingebrigtsen <> writes:
    > > I've tried quite a few of the 2.4.19-pre patches, with or without
    > > various -ac patches, including pre10 + ac2, and they all basically
    > > display one of two behaviors: The machine either hangs just before
    > > detecting the disk, or when doing the partition check for the disk.
    > [...]
    > > ALI15X3: IDE controller on PCI bus 00 dev 20
    > > PCI: No IRQ known for interrupt pin A of device 00:04.0. Please try using pci=biosirq.
    > > ALI15X3: chipset revision 196
    > > ALI15X3: not 100% native mode: will probe irqs later
    > > ide0: BM-DMA at 0xd400-0xd407, BIOS settings: hda:DMA, hdb:pio
    > > ide1: BM-DMA at 0xd408-0xd40f, BIOS settings: hdc:pio, hdd:DMA
    > After poking around a bit, it seems like the real problem might be
    > with the ALI15X3 driver. I disabled that driver, and now I can boot
    > using 2.4.19-pre10-ac2. Of course, that leaves me with no DMA...
    > So -- is this a general problem with this driver, or does it only
    > show up when using disks bigger than 128GiB?

    I've had a lot of problems with ALI15x3; the patch that let me boot
    (found somewhere on the net, do not remember the original author)
    commented out the pci_read_config_byte and two pci_write_config_byte
    calls right below the comment that says "set south-bridge's enable
    bit". Recent -ac kernels have this in two places. DMA still works
    after doing that; does this work for you?

    Daniel Jacobowitz Carnegie Mellon University
    MontaVista Software Debian GNU/Linux Developer
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