From owner-freebsd-questions  Thu Jun  4 17:29:11 1998
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Date: Fri, 5 Jun 1998 09:58:28 +0930
From: Greg Lehey <grog@lemis.com>
To: Brian Neal <brian@free1.cetinc.com>, freebsd-questions@FreeBSD.ORG
Subject: Re: aha0: DMA beyond end Of ISA
References: <199806041240.MAA00379@free1.cetinc.com>
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In-Reply-To: <199806041240.MAA00379@free1.cetinc.com>; from Brian Neal on Thu, Jun 04, 1998 at 12:40:00PM +0000
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On Thu,  4 June 1998 at 12:40:00 +0000, Brian Neal wrote:
>
> Hello,
>
> I'm trying to backup my filesystem to a seagate tape drive, however,
> I keep getting this error message:
>
>> mt fsf 1
>
> aha0: DMA beyond end Of ISA: 0x75c3d10
>
>> mt rewind
>
> aha0: DMA beyond end Of ISA: 0x75c3d10
>
> And when I try to use dump:
>
>> dump -0u -a -f /dev/nrst0 /usr
>
> DUMP: bad sblock magic number
> DUMP: The ENTIRE dump is aborted.
>
> The tape is on an aha-1542 isa scsi controller.  Can anyone
> tell me what's happening?

Do you have options BOUNCE_BUFFERS in the kernel?

Greg
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