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Date: Mon, 25 Jul 2005 23:37:15 +0100
From: Joao Barros <joao.barros@gmail.com>
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References: <dc30v2$3pg$1@FreeBSD.csie.nctu.edu.tw>
	<20050725205651.GA75156@auricle.charter.net>
Subject: Re: Quality of FreeBSD
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On 7/25/05, J. Porter Clark <jpc@suespammers.org> wrote:
> >The VIA SATA onboard controller on my server works (and has worked)
> >flawlessly.  I have two identical 80G Maxtor SATA drives connected to it
> >and have had absolutely no problems and excellent performance.  Even my
> >Dell Inspirion 5100--with a few hiccups--has made great progress and is
> >mostly functional.
>=20
> The ATA (definitely not SATA) controller on my Dell Latitude
> C840 laptop has READ_DMA, WRITE_DMA problems, maybe 2-3 times
> a day unless I turn off DMA.  It hangs for 3-4 seconds, logs
> errors, then proceeds.  It isn't heavily loaded.  I tried using
> Soren's ATA mkIII patches, and now it likes to panic about that
> same frequency instead of hanging, so I'm going back to the
> stock RELENG_5 config next chance I get.
>=20
> It's one of these:
>=20
>   atapci0: <Intel ICH3 UDMA100 controller> port 0xbfa0-0xbfaf,0x376,0x170=
-0x177,0x 3f6,0x1f0-0x1f7 at device 31.1 on pci0
>=20

Your going back to stock RELENG_5 from what?
I have that very same laptop running FreeBSD from 5.0 up to 5.4 with
absolutely no DMA problems using it.
Note: I did exchange the HDD from 20 to 60GB, different brands.

--
Joao Barros