From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751096AbVHKQ77 (ORCPT ); Thu, 11 Aug 2005 12:59:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751124AbVHKQ77 (ORCPT ); Thu, 11 Aug 2005 12:59:59 -0400 Received: from nproxy.gmail.com ([64.233.182.200]:41089 "EHLO nproxy.gmail.com") by vger.kernel.org with ESMTP id S1751096AbVHKQ76 convert rfc822-to-8bit (ORCPT ); Thu, 11 Aug 2005 12:59:58 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=f4YkACoNL9p5Vcn1GdX5zzS8UMfOx+YAX3MFKLdnjtzkfCzXCl8OhAkhZbaJsJsH3IMFc13K3RRFL8gp8Mvwt/M5RdUQXGJRmvCKbdTYsI6TvYXRTMzdxXjWOQz/oLsdSfN4nIPB5cbaZnZPSHxj+glOHNdaXP7TSml8HSK0qVs= Message-ID: <2cd57c9005081109597b18cc54@mail.gmail.com> Date: Fri, 12 Aug 2005 00:59:55 +0800 From: Coywolf Qi Hunt To: Steven Rostedt Subject: Re: Need help in understanding x86 syscall Cc: "linux-os (Dick Johnson)" , 7eggert@gmx.de, Ukil a , linux-kernel@vger.kernel.org In-Reply-To: <2cd57c90050811093112a57982@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <4Ae73-6Mm-5@gated-at.bofh.it> <1123770661.17269.59.camel@localhost.localdomain> <2cd57c90050811081374d7c4ef@mail.gmail.com> <1123775508.17269.64.camel@localhost.localdomain> <1123777184.17269.67.camel@localhost.localdomain> <2cd57c90050811093112a57982@mail.gmail.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 8/12/05, Coywolf Qi Hunt wrote: > On 8/12/05, Steven Rostedt wrote: > > On Thu, 2005-08-11 at 11:51 -0400, Steven Rostedt wrote: > > > > > > And booted it. The system is up and running, so I really don't think > > > that the sysenter_entry is used for system calls. > > > > > > Not so "Clear as day"! > > > > And so, looking into sysenter_entry, it seems that my configurations > > don't seem to use it. This jumps straight to system_call without ever > > having to turn interrupts on. > > > > # cat /proc/cpuinfo > > processor : 0 > > vendor_id : GenuineIntel > > cpu family : 6 > > model : 8 > > model name : Pentium III (Coppermine) > > stepping : 3 > > cpu MHz : 367.939 > > cache size : 256 KB > > fdiv_bug : no > > hlt_bug : no > > f00f_bug : no > > coma_bug : no > > fpu : yes > > fpu_exception : yes > > cpuid level : 2 > > wp : yes > > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge > > mca cmov pat pse36 mmx fxsr sse > > bogomips : 722.94 > > > > > > -- Steve > > > > The cpu does have sep. Is it vanilla kernel? > Also glibc support. -- Coywolf Qi Hunt http://ahbl.org/~coywolf/