motherboard iWILL XP333 comes with ALI Magik chipset, and southbridge (IDE controller itself) is 1535D+. Sppsly it supports UDMA -33/66/100/133 i have proper cables attached (80 wires) to both ide channels ide0: two maxtor ides with ATA100/UDMA5 capable chips ide1: kenwood 72x CDROM with UDMA33 capable chip. On boot time: ide0 couldnt recognize chipset and udma modes for. ide1 - recognizing udma33 correctly. Seems like major bug to me (4M/s perfomance report from hdparm -tT /dev/hda)
Did you enable "PCI IDE DMA by default" in your kernel? If not, this is what happens :)
Arf. Been there, done that :) Tried both - auto and by hands settings. Only known way to cure it - by running hand-written hdparm -c1 -d1 -m16 -X69 /dev/hda - but it feels rather sulky.
What make and model harddisk drive is it ?
As reported by SuSE 7.3 Pro:(it actually has exactly same problem, and i had to tweak hdparm to it by hands as well):/dev/hda: Model=Maxtor 4W080H6, FwRev=AAH41310, SerialNo=W6050SYC Config={ Fixed } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=8 CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=160086528 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 AdvancedPM=yes: disabled (255) Drive Supports : ATA/ATAPI-6 T13 1410D revision 0 : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5 ATA-6 Kernel Drive Geometry LogicalCHS=9964/255/63 PhysicalCHS=158816/16/63
has the reporter tried the latest kernels after adding support for all the IDE interfaces to the kernel ?
