On Wed, 20 Oct 1999, Axalon Bloodstone wrote:
[snip steve]
> > hda: QUANTUM BIGFOOT_CY6480A, 6204MB w/67kB Cache, CHS=13446/15/63, DMA
> > hdd: ATAPI 20X CD-ROM CD-R/RW drive, 2048kB Cache, DMA
> >
> > So, the kernel believes that the drives are still DMA-capable at boottime
> > despite the BIOS switch.
Sorry steve for refrence.. my cdrom doesn't go into DMA mode
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:pio, hdd:pio
hda: Maxtor 92048U8, ATA DISK drive
hdc: CD-R CDU928E, ATAPI CDROM drive
hdparm of hda is same, i did just notice your cd is on hdd. why for?
> > hdparm reports:
> >
> > /dev/hda:
> > multcount = 0 (off)
> > I/O support = 0 (default 16-bit)
> > unmaskirq = 0 (off)
> > using_dma = 1 (on)
> > keepsettings = 0 (off)
> > nowerr = 0 (off)
> > readonly = 0 (off)
> > readahead = 8 (on)
> > geometry = 13446/15/63, sectors = 12706470, start = 0
> >
> > which seems to verify that somewhere along the way, DMA got enabled on the
> > drives. /usr/doc/Documentation/Configure.help says that DMA is disabled by
> > default unless the CONFIG_BLK_IDEDMA_AUTO is turned on. I have verifed that
> > the option is not enabled in the default kernel-2.2-i586-smp.config (got
> > more errors while installing the source package, good thing the machine
> > didn't lock up).
> >
> > Here are the relevant installed kernel packages:
> >
> > kernel-2.2.13-4mdk
> > kernel-headers-2.2.13-4mdk
> > kernel-pcmcia-cs-2.2.13-4mdk
> > kernel-smp-2.2.13-4mdk
> > kernel-source-2.2.13-4mdk
>
> I'm not sure howlong till the next ide patch is out for 2.2.13 hopefully
> it'll fix this. also which error are you getting again 'hdX: lost
> interupt' or the DMA timeout
