ATA DMA issues - are there problems lurking in 7.1?

Chris H chris# at
Wed Apr 29 19:03:24 UTC 2009

Hello Gavin, and thank you for your reply...

Quoting Gavin Atkinson <gavin at>:

> On Wed, 2009-04-29 at 02:48 -0700, Chris H wrote:
>> Greetings,
>> I have several Tyan S2518UGN (Thunder LE-T) server boards that I've
>> been running for a few yrs. I've always used the SCSI on them, so never
>> really used the ATA ports. I once experimented dual-booting NT2003 & FBSD
>> on one of the ATA ports about a year ago. But ran into the problem I'm
>> running into now. Back then I just blamed it on the drive (even tho it
>> was brand new, and ran NT without complaints). But FreeBSD complains.
>> So this is the story now; I'm trying it again - different drive, and using
>> XP-SP3 & BSD. XP installs/runs w/o a hitch. I then install BSD on the
>> second half of the drive, and make an entry into the XP boot loader.
>> Reboot into the fresh BSD install - now the trouble begins...
>> I periodically receive the following messages:
> Can you provide a full verbose dmesg from the system online somewhere
> please?

Can do!

Hope this helps, and thanks again.


> Gavin
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