Date: Fri, 5 Mar 1999 14:02:36 -0500 (EST) From: "John S. Dyson" <dyson@iquest.net> To: dillon@apollo.backplane.com (Matthew Dillon) Cc: hasty@rah.star-gate.com, tlambert@primenet.com, dyson@iquest.net, dick@tar.com, jplevyak@inktomi.com, hackers@FreeBSD.ORG Subject: Re: lockf and kernel threads Message-ID: <199903051902.OAA00724@y.dyson.net> In-Reply-To: <199903051841.KAA49799@apollo.backplane.com> from Matthew Dillon at "Mar 5, 99 10:41:07 am"
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Matthew Dillon said: > : > :Thats probably true however for delivery of an AST I don't thing that we > :need priviliged instructions --- I could be wrong. > : > : Amancio > > Little things like, ohhhhh disabling interrupts. Accessing the MMU > registers, flushing the TLB, etc..... believe me, ring 1 and ring 2 > is utterly useless for anything FreeBSD wants to run in supervisor mode. > AST's could be simulated, but it is just more hair added to an already sufficient set of hair. -- John | Never try to teach a pig to sing, dyson@iquest.net | it makes one look stupid jdyson@nc.com | and it irritates the pig. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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