From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754133AbZARWf2 (ORCPT ); Sun, 18 Jan 2009 17:35:28 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751658AbZARWfT (ORCPT ); Sun, 18 Jan 2009 17:35:19 -0500 Received: from kuber.nabble.com ([216.139.236.158]:49347 "EHLO kuber.nabble.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751520AbZARWfS (ORCPT ); Sun, 18 Jan 2009 17:35:18 -0500 Message-ID: <21534062.post@talk.nabble.com> Date: Sun, 18 Jan 2009 14:35:17 -0800 (PST) From: agent59624285 To: linux-kernel@vger.kernel.org Subject: Signals mechanism question MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Nabble-From: agent59624285@spamcorptastic.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, I read lately about the signals mechanism, and I have a couple of question that I couldn't find the answer to them. it would be great if someone would answer. 1. when handling a signal before changing to user Mode, the kernel copies data to the user stack. what is the data that he saves in setup_frame()? 2. what signals are blocked while in the signal handler? could this mask be changed? 3. when does a system call could be reentrant and when it cannot, when disturbed by a signal? thanks. -- View this message in context: http://www.nabble.com/Signals-mechanism-question-tp21534062p21534062.html Sent from the linux-kernel mailing list archive at Nabble.com.