Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268281AbUIKS7E (ORCPT ); Sat, 11 Sep 2004 14:59:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268285AbUIKS7E (ORCPT ); Sat, 11 Sep 2004 14:59:04 -0400 Received: from smtp206.mail.sc5.yahoo.com ([216.136.129.96]:37764 "HELO smtp206.mail.sc5.yahoo.com") by vger.kernel.org with SMTP id S268281AbUIKS7A (ORCPT ); Sat, 11 Sep 2004 14:59:00 -0400 From: Fabiano Ramos To: LKML Subject: kernel execution not deterministic Date: Sat, 11 Sep 2004 16:02:41 -0300 User-Agent: KMail/1.6.2 Cc: ramosf@cos.ufrj.br MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <200409111602.41169.ramos_fabiano@yahoo.com.br> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 623 Lines: 18 Hi all. I wrote a module to trace the instructions executed by the kernel to service a system call. Its just a eflags setting bit at the start of the syscall handler and a debug handler that increments a counter. The thing is that the syscalls are sometimes taking more or less instructions to execute. Why is that? Is it expected? Or a probably made a mistake? TIA, Fabiano - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/