From owner-freebsd-questions  Wed Jul 30 00:00:22 1997
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To: bill@twwells.com (T. William Wells)
cc: freebsd-questions@FreeBSD.ORG
Subject: Re: can't get panic dump 
In-reply-to: Your message of "Wed, 30 Jul 1997 02:15:31 EDT."
             <5rmm46$1b5@twwells.com> 
From: David Greenman <dg@root.com>
Reply-To: dg@root.com
Date: Wed, 30 Jul 1997 00:01:05 -0700
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>I'm running 2.2.2-RELEASE. I have 32M of RAM. I have bounce
>buffers in my config. The SCSI controller is an Adaptec 1540. It
>dumps 16M and then at the 16M boundary complains about DMA beyond
>end of ISA and stops dumping. Any ideas?

   Yeah, the (lack of) bounce buffers in the dump support is an oversight. I'm
not sure that there is a "clean" way to do this since higher level bounce
buffers really have no business being used when the system is writing out
a crash dump. I think in this case the driver dump routine should be modified
to work around the 16MB limitation (yuck).

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project