Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 14 Sep 1995 11:32:10 -0700 (MST)
From:      Terry Lambert <>
To: (Richard Hesketh)
Subject:   Re: Does FreeBSD suffer from the Intel RZ1000 IDE bug?
Message-ID:  <>
In-Reply-To: <21264.811096337@crane> from "Richard Hesketh" at Sep 14, 95 05:32:17 pm

Next in thread | Previous in thread | Raw E-Mail | Index | Archive | Help
> I've read that Intel have a bug in their RZ1000 controller chip
> found on some of their PCI motherboards (and guess what motherboard
> I have 8-)
> The full details are given under:
> Linux is listed as being affected and I was wondering if FreeBSD
> was as well or if a fixed driver is available and from what version
> of FreeBSD is it in?
> As a workaround I am turning off use of IDE Pre-fetch buffers
> in my BIOS setup (as recommended by Intel).

Windows95 is also affected.  You can fix it by turning off 32 bit disk I/O.

The problem occurs when you take an interrupt during DMA transfer.

The FreeBSD IDE drivers don't use DMA.

					Terry Lambert
Any opinions in this posting are my own and not those of my present
or previous employers.

Want to link to this message? Use this URL: <>