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Re: What was wrong with this sequence?



Stephen C. Tweedie:
> Hi,
> 
> On Fri, Oct 19, 2001 at 10:40:30AM -0400, John Ruttenberg wrote:
> 
> > It has a 30gb drive.  /proc/ide/hda/model/ has HITACHI_DK23CA-30.
> 
> So it sounds like the generic i8100 problem rather than the generic
> IBM disk problem.  And yes,
> 
> > I found (but cannot find again) a
> > redhat bug about it and ended up starting the install with "linux ide=nodma"
> > on the lilo command line.
> 

Please, do you have a pointer to this bug so that I can find it and track it?
I'm having trouble fining it in redhat's bugzilla.

I have an additional bit of evidence.  We reinstalled and here is what was in
/var/log/dmesg with the 2.4.2 (7.2 default) kernel:

    Uniform Multi-Platform E-IDE driver Revision: 6.31
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    PCI_IDE: unknown IDE controller on PCI bus 00 device f9, VID=8086, DID=244a
    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: HITACHI_DK23CA-30, ATA DISK drive
    hdb: TEAC CD-ROM CD-224E, ATAPI CD/DVD-ROM drive
    ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    hda: 58605120 sectors (30006 MB) w/2048KiB Cache, CHS=3648/255/63

This is what is there now that we are running 2.4.12-ac3:

    Uniform Multi-Platform E-IDE driver Revision: 6.31
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    PIIX4: IDE controller on PCI bus 00 dev f9
    PIIX4: chipset revision 3
    PIIX4: not 100% native mode: will probe irqs later
        ide0: BM-DMA at 0xbfa0-0xbfa7, BIOS settings: hda:DMA, hdb:DMA
    hda: HITACHI_DK23CA-30, ATA DISK drive
    hdb: TEAC CD-ROM CD-224E, ATAPI CD/DVD-ROM drive
    ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
    hda: 58605120 sectors (30006 MB) w/2048KiB Cache, CHS=3648/255/63
    hdb: ATAPI 24X CD-ROM drive, 128kB Cache
    Uniform CD-ROM driver Revision: 3.12

Perhaps the unknown IDE controller is significant?  Could be that we can
enable DMA now that we are running a much more recent kernel?  I don't really
know how to access this.  Does anybody else?





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