Date: Fri, 5 Mar 1999 15:21:41 -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: <199903052021.PAA00372@y.dyson.net> In-Reply-To: <199903052004.MAA52547@apollo.backplane.com> from Matthew Dillon at "Mar 5, 99 12:04:33 pm"
next in thread | previous in thread | raw e-mail | index | archive | help
Matthew Dillon said: > > : > :> Little things like, ohhhhh disabling interrupts. Accessing the MMU > : > :And I supposed that we can not provide a mechanism or layer to deliver > :AST which does not require disabling interrupts, etc... > : > : Amancio > > Not unless you want to rewrite the kernel. But it's actually more the > inability to access the MMU, cache control, and other priv instructions > that pretty much trashes the usefullness of ring 1 & 2. > (Unless you want to create an API that supports that in ring 0.) That would be more layers of abstraction :-(. -- 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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199903052021.PAA00372>