From owner-freebsd-current Mon Feb 11 19:27:47 2002 Delivered-To: freebsd-current@freebsd.org Received: from newman2.bestweb.net (newman2.bestweb.net [209.94.102.67]) by hub.freebsd.org (Postfix) with ESMTP id 5774C37B4B5; Mon, 11 Feb 2002 18:18:23 -0800 (PST) Received: from okeeffe.bestweb.net (okeefe.bestweb.net [209.94.100.110]) by newman2.bestweb.net (Postfix) with ESMTP id A1E5423333; Mon, 11 Feb 2002 21:17:30 -0500 (EST) Received: by okeeffe.bestweb.net (Postfix, from userid 0) id 8AD609F013; Mon, 11 Feb 2002 21:12:23 -0500 (EST) Date: Fri, 8 Feb 2002 22:23:48 -0800 (PST) From: Julian Elischer To: bde@freebsd.org Cc: FreeBSD current users Subject: "fast" interrupt handler threads. Message-Id: <20020212021223.8AD609F013@okeeffe.bestweb.net> Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Bruce, for the low-level impared such as myself, can you give a quick precis on teh difference between "fast" interrupt handlers in -current and 'normal' interrupt handlers. Do fast interrupt handlers enter through "trap()" ? if they interrupt a user process, do they take on the cred of the running thread? do they return via doreti() on returning do they check for ASTs and run userret()? I have seen the answers to some of these questions in the code, but I'd like to get a more 'english' explanation from someone who seems to understand them.. Julian To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message