From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965085AbVHZPpn (ORCPT ); Fri, 26 Aug 2005 11:45:43 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965087AbVHZPpn (ORCPT ); Fri, 26 Aug 2005 11:45:43 -0400 Received: from xproxy.gmail.com ([66.249.82.206]:3347 "EHLO xproxy.gmail.com") by vger.kernel.org with ESMTP id S965085AbVHZPpm convert rfc822-to-8bit (ORCPT ); Fri, 26 Aug 2005 11:45:42 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=jXlUW8wL3fvhb06vg5cy+0TKS4CkcVKnNcXZcyZppvmui8MaxgYr9Y8ll/cypmPhs9x4SPxB8854FFDutY7q6rwD7ZRJPLd5cz7LV29+f2Oq3NjWfbULkF5ftHdQF12z7nyvyLHrtcWHMUfIlSNqPvSLVoQLvNZ800wD7P5oEQs= Message-ID: <1132fcd605082608455081c769@mail.gmail.com> Date: Fri, 26 Aug 2005 23:45:41 +0800 From: lab liscs To: linux-kernel@vger.kernel.org Subject: my view about schedule( ) and system call , right or wrong ? Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org schedule( ) always runs in kernel space, therefore the address of all elements used by schedule() is not virtual address but physical address.? analogous question also appears in system call , when I define myself syscall , for example: asmlinkage long sys_check(a,b ,c){ unsigned long buf; ........... } then , the buf is stored in kernel space , that is , physical address . right or wrong