Date: Thu, 25 May 2000 01:25:20 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: cp@bsdi.com (Chuck Paterson) Cc: gallatin@cs.duke.edu (Andrew Gallatin), arch@FreeBSD.ORG Subject: Re: Preemptive kernel on older X86 hardware Message-ID: <200005250125.SAA11774@usr05.primenet.com> In-Reply-To: <200005241800.MAA07427@berserker.bsdi.com> from "Chuck Paterson" at May 24, 2000 12:00:49 PM
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> }If this isn't possible on an x86, please don't laugh too hard. I > }really don't know much about low-level x86 details. > } > }Cheers, > } > }Drew > > It can be done. In BSD/OS and Solaris however the locks must > be gotten because they are what protect from interrupt service. NT and Windows do this today for VxD jump tables, when one VxD uses the entry points of another on which it depends. Go out to the Microsoft developer site, and look for documentation on the function "peloader" in any Windows 9x or higher DDK. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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