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SubjectRe: very slow hard disk
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Thanks! that fixed it. 

On Wed, Mar 08, 2000 at 02:25:28PM -0500, Alec Smith wrote:
> Try patching the kernel with Andre Hedrick's EIDE patches. He's put
> together a patch which has a fix for the seek complete message. You'll be
> able to grab his patches at
> ftp.kernel.org/pub/linux/kernel/people/hedrick.
>
> Andre Hedrick is the Linux IDE maintainer, so the patches are in good
> shape. I believe he's moved the 2.2.14 version to
> /pub/linux/kernel/people/hedrick/old.
>
>
>
>
> On Wed, 8 Mar 2000 robbie@scot-mur.demon.co.uk wrote:
>
> > Hi
> >
> > Kernel is 2.2.14, Smp, PIIX4 IDE, 2 X Pii 450.
> >
> > After a bit more investigation, it appears that it is not using
> > UDMA. If I use hdparm to set any UDMA mode, I get the following in
> > dmesg:
> >
> > hdc: timeout waiting for DMA
> > hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest }
> > hdc: DMA disabled
> > ide1: reset: success
> >
> > The best I can get is multiword DMA mode2 at 3.05 Mb/s. I am using
> > hdparm -tT to measure the speed. Output from hdparm -iv is below.
> >
> >
> > /dev/hdc:
> > 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 = 4160/255/63, sectors = 66835440, start = 0
> >
> > Model=IBM-DPTA-373420, FwRev=P71OA30A, SerialNo=JXYJX017427
> > Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
> > RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=34
> > BuffType=3(DualPortCache), BuffSize=1961kB, MaxMultSect=16,
> > MultSect=off
> > DblWordIO=no, OldPIO=2, DMA=yes, OldDMA=2
> > CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=66835440
> > tDMA={min:120,rec:120}, DMA modes: mword0 mword1 *mword2
> > IORDY=on/off, tPIO={min:240,w/IORDY:120}, PIO modes: mode3 mode4
> > UDMA modes: mode0 mode1 mode2 mode3 mode4
> >
> > Regards
> >
> > --
> > Rob Murray
> >
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > the body of a message to majordomo@vger.rutgers.edu
> > Please read the FAQ at http://www.tux.org/lkml/
> >
>

--
Rob Murray

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