From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 10 Nov 2000 13:52:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 10 Nov 2000 13:52:36 -0500 Received: from [64.64.109.142] ([64.64.109.142]:27151 "EHLO quark.didntduck.org") by vger.kernel.org with ESMTP id ; Fri, 10 Nov 2000 13:52:17 -0500 Message-ID: <3A0C435C.A31A38EC@didntduck.org> Date: Fri, 10 Nov 2000 13:50:04 -0500 From: Brian Gerst X-Mailer: Mozilla 4.73 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: davej@suse.de CC: "H. Peter Anvin" , Linux Kernel Mailing List Subject: Re: [Fwd: CPU detection revamp (Request for comments)] In-Reply-To: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org davej@suse.de wrote: > > Hi hpa, > > First test, the AMD K6-2. > > Also, look at the feature flags: > before: > flags : fpu vme de pse tsc msr mce cx8 sep mtrr pge mmx 3dnow > > after: > features : fpu vme de pse tsc msr mce cx8 pge mmx syscall 3dnow > > Note, I lost MTRR & sep. This may be related to the stepping bug > though. I'll recompile a kernel with the &15 fix, and see if that cures > all. The K6's don't support sysenter/sysexit. It really should have been marked differently before. The early K6's used extended bit 10 to indicate syscall/sysret capabality, but this version has some quirks that make it pretty much unusable. Later K6's use extended bit 11 to indicate syscall/sysret. -- Brian Gerst - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/