Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756229Ab0KWS3Z (ORCPT ); Tue, 23 Nov 2010 13:29:25 -0500 Received: from mail-pw0-f46.google.com ([209.85.160.46]:60778 "EHLO mail-pw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756166Ab0KWS3X convert rfc822-to-8bit (ORCPT ); Tue, 23 Nov 2010 13:29:23 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:reply-to:in-reply-to:references:date:message-id :subject:from:to:cc:content-type:content-transfer-encoding; b=LnFbmHvR1ozrjVxbthZIC+YGozjrOajKCh4R5Gb3DOdSU+12rekeghZsEgPUm86Gdf zTSj1coxOE9jT5TrUM2F3HfgdgUl1D6kEPkRoOISPM/QoyzzoxL9bdGaJvP4X9flyYSB mJILY4KjlaOk6FVHwtVjEcn0EZFnShmON7TiU= MIME-Version: 1.0 Reply-To: sedat.dilek@gmail.com In-Reply-To: <1290536827.2072.417.camel@laptop> References: <20101123165657.GF18100@redhat.com> <1290536827.2072.417.camel@laptop> Date: Tue, 23 Nov 2010 19:29:20 +0100 Message-ID: Subject: Re: [PATCH] x86, perf, nmi: Disable perf if counters are not accessable From: Sedat Dilek To: Peter Zijlstra Cc: Don Zickus , LKML Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1089 Lines: 26 On Tue, Nov 23, 2010 at 7:27 PM, Peter Zijlstra wrote: > On Tue, 2010-11-23 at 19:21 +0100, Sedat Dilek wrote: >> Due to BIOS l(ocal)apic is not possible: >> >> # dmesg | grep -i apic >> [    0.000000] Using APIC driver default >> [    0.000000] Local APIC disabled by BIOS -- you can enable it with "lapic" >> [    0.000000] APIC: disable apic facility >> [    0.000000] APIC: switched to apic NOOP >> [    0.008891] no APIC, boot with the "lapic" boot parameter to force-enable it. >> [    0.036141] Local APIC not detected. Using dummy APIC emulation. > > Have you tried booting with "lapic" as the second last msg suggests you > do? > Yes, I did try before there was [1], booting with "lapic" had no effect. - Sedat - [1] bugfix/x86/Skip-looking-for-ioapic-overrides-when-ioapics-are-not-present.patch -- 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/