Date: Tue, 9 Sep 2003 02:20:04 -0700 (PDT) From: Mark Terribile <materribile@yahoo.com> To: freebsd-questions@freebsd.org Cc: freebsd-hardware@freebsd.org Subject: Re: IBM 120 G IDE -- problems Message-ID: <20030909092004.82044.qmail@web21102.mail.yahoo.com>
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My thanks to all the people who replied to my
problem with the 120 GB drive. The fix -- or
rather, workaround -- is to disable DMA on IDE
by setting hw.ata.ata_dma=0 in /boot/loader.conf .
This means that any I/O on that disk sucks the
processor right up into the drive. This is OK,
but barely, because I intend to use this drive
infrequently but for large amounts of data.
I suspect that the problem is in the support for
the chipset. The manual for the board isn't very
clear about the base IDE chipset; it lists
SiS 963 MuTIOL Media I/O
IT8705F I/O Control
Sil3112A SATA
IT8212F RAID
The third and fourth IDE channels are controlled via
the RAID system; even when it is configured to make
the drives directly visible, FreeBSD can't see them.
The board is a GigaByte GA-SINXP1394 (P4 Titan
Series).
Once again, it's running `well enough'; I have now
to put the partitions on it; thanks to all who wrote.
Mark Terribile
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