I was using an ASUS P3V4X motherboard that has a Via Pro133A
chipset and experiencing the mysterious IDE timeouts every few minutes
from a 27.2GB Maxtor IDE drive. laufaml@hotmail.com reported a similar
problem also using a P3V4X + a Maxtor drive, while aphro@portal.aphroland.org
reported no problems with a P3V4X + and IBM drive.
I have discovered that the problem disappears (under
Linux 2.4.13-pre6) if I replace the 27.2GB Maxtor IDE drive with an
80GB Maxtor IDE drive. This may be related to the 80GB drive being
able to do ATA100 or some bug fix or workaround in newer Maxtor hard
drive firmware.
Note that reports of the problem is not limited to Maxtor.
I saw at least one usenet posting about the problem from someone
with three hard disks, none of them from Maxtor.
Also see a posting by "Ed &Annemarie (dus.dek@wanadoo.nl)"
regarding a patch by George E. Breese that seems to indicate that
setting the PCI latency register of the Pro133A to 0 (or possibly
to 0x80) solves the problem. However, when I previously changed
it from 16 to 8 and 128 (0x80), that seemed to have no effect.
I have not tried setting it to zero.
Anyhow, I hope this information about which drives trigger the
problem and which drives will be of practical use to other people
experiencing the problem or of some use in analyzing and fixing it
in Linux.
Adam J. Richter __ ______________ 4880 Stevens Creek Blvd, Suite 104
adam@yggdrasil.com \ / San Jose, California 95129-1034
+1 408 261-6630 | g g d r a s i l United States of America
fax +1 408 261-6631 "Free Software For The Rest Of Us."
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