Date: Thu, 14 Sep 1995 11:32:10 -0700 (MST) From: Terry Lambert <terry@lambert.org> To: R.L.Hesketh@ukc.ac.uk (Richard Hesketh) Cc: hackers@freebsd.org, questions@freebsd.org Subject: Re: Does FreeBSD suffer from the Intel RZ1000 IDE bug? Message-ID: <199509141832.LAA10037@phaeton.artisoft.com> In-Reply-To: <21264.811096337@crane> from "Richard Hesketh" at Sep 14, 95 05:32:17 pm
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> 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: > > http://www.intel.com/procs/support/rz1000/index.html > > 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 terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers.
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