DMA and my Maxtor drive

From: linux@cr753963-a.glph1.on.wave.home.com
Date: Fri Oct 20 2000 - 17:43:53 EST


I get this when DMA is enabled:

Oct 20 15:39:07 cr753963-a kernel: hdb: timeout waiting for DMA
Oct 20 15:39:07 cr753963-a kernel: hdb: irq timeout: status=0x6e {
DriveReady DeviceFault DataRequest CorrectedError Index }
ide0: reset: success
Oct 20 15:39:07 cr753963-a kernel: hdb: DMA disabled
Oct 20 15:39:07 cr753963-a kernel: ide0: reset: success

It only happens when there lots of data is being transferred, or compiled
on the drive.. The drive status is this:

/dev/hdb:

 Model=Maxtor 82560A4, FwRev=AA8Z2726, SerialNo=C40LTQGA
 Config={ Fixed }
 RawCHS=4962/16/63, TrkSize=0, SectSize=0, ECCbytes=20
 BuffType=DualPortCache, BuffSize=256kB, MaxMultSect=16, MultSect=off
 CurCHS=4962/16/63, CurSects=5001696, LBA=yes, LBAsects=5001728
 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

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