Below are the results of hdparm running 2.2.18-1mdk. (I cannot login to
the 2.4.0-0.15mdk kernel, see separate posting. My HUB is also broken
so remote login is not possible either)
I have not found any boot-up message indicating ide0=autotune, nor any
files with this text. Where to look for this, specific to kernel
2.4? Note that I'm running the disks with udma2 for the 2.2.18 kernel,
see below. No problems for kerenels-2.2.x!
/boot/grub/menu.lst does not set autotune for ide0:
title mdk72++
kernel (hd1,0)/boot/vmlinuz-2.4.0-0.15mdk root=/dev/hdb1
#hdparm -i /dev/hdb
/dev/hdb:
Model=IBM-DTTA-351010, FwRev=T56OA73A, SerialNo=WF0WFJJ2557
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=34
BuffType=DualPortCache, BuffSize=466kB, MaxMultSect=16, MultSect=16
CurCHS=17475/15/63, CurSects=16513875, LBA=yes, LBAsects=19807200
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2 udma0 udma1 *udma2
#hdparm -t /dev/hdb
/dev/hdb:
Timing buffered disk reads: 64 MB in 14.83 seconds = 4.32 MB/sec
#hdparm -X66 /dev/hdb
/dev/hdb:
setting xfermode to 66 (UltraDMA mode2)
#fdparm -t /dev/hdb
/dev/hdb:
Timing buffered disk reads: 64 MB in 14.78 seconds = 4.33 MB/sec
civileme writes:
> On Saturday 30 December 2000 11:54, you wrote:
> > Svante Signell wrote:
> > > I'm getting errors like this when booting kernel 2.4.0-x, eg x=0.14mdk
> > > They does not happen with kernels 2.2.x. Do I have to compile a kernel
> > > on my own, not using the precompiled ones?
> > >
> > > hdb: dma_intr: status=0x51 { DriveReady SeekComplete Error }
> > > hdb: dma_intr: error=0x84 { DriveStatusError BadCRC }
> > > more of the above...
> >
> You need to remove any autotune instructions to the kernel in the boot-up
> procedures they will look like "ide0=autotune"
>
> You need to use hdparm -i on the drives to see what mode they are running
>
> Use hdparm -t to test the speed
>
> Use hdparm -Xxy where xy=64+udma mode to set the udma mode lower
>
> Keep testing speed as you change the settings. Your disks are set faster
> than they are capable of reliably running--and they are set as the
> manufacturer advertised them.
>
> Civileme
>
