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Date:      Sat, 14 May 2005 07:56:35 -0700 (PDT)
From:      Doug White <dwhite@gumbysoft.com>
To:        Steven Hartland <killing@multiplay.co.uk>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: 5.4-RELEASE amd64: Panic isadma_start : bad bounce buffer
Message-ID:  <20050514075519.C41753@carver.gumbysoft.com>
In-Reply-To: <009901c5588f$b242b150$b3db87d4@multiplay.co.uk>
References:  <009901c5588f$b242b150$b3db87d4@multiplay.co.uk>

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On Sat, 14 May 2005, Steven Hartland wrote:

> Just been trying to install FreeBSD 5.4 amd64 here and
> when loading the raid control kernel module driver ( hptmv )
> from floppy and booting I was getting:
> Panic isadma_start : bad bounce buffer

This is a known bug; floppy drives don't work on amd64 since the ISA DMA
buffer gets allocated above 16MB.  I don't know if this is something that
needs to be handled by busdma.

-- 
Doug White                    |  FreeBSD: The Power to Serve
dwhite@gumbysoft.com          |  www.FreeBSD.org



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