From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752449Ab2CWDX1 (ORCPT ); Thu, 22 Mar 2012 23:23:27 -0400 Received: from e9.ny.us.ibm.com ([32.97.182.139]:40992 "EHLO e9.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751127Ab2CWDXZ (ORCPT ); Thu, 22 Mar 2012 23:23:25 -0400 Message-ID: <4F6BECA7.7030007@linaro.org> Date: Thu, 22 Mar 2012 20:23:19 -0700 From: John Stultz User-Agent: Mozilla/5.0 (X11; Linux i686; rv:11.0) Gecko/20120310 Thunderbird/11.0 MIME-Version: 1.0 To: Ajeet Yadav CC: Russell King - ARM Linux , linux-kernel@vger.kernel.org, Steven Rostedt Subject: Re: Not able to use HIGH_RES_TIMERS on ARM References: <20120319130445.GN15988@n2100.arm.linux.org.uk> <20120319132623.GO15988@n2100.arm.linux.org.uk> <4F696011.7080409@linaro.org> <20120322100236.GS15988@n2100.arm.linux.org.uk> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12032303-7182-0000-0000-0000011A54A1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/22/2012 03:25 AM, Ajeet Yadav wrote: > I understand your point, > Our target (2.6) always had ARCH_USES_GETTIMEOFFSET=y , but still we > were able to use the TRACER in past until the patch "kill > GENERIC_TIMER" published, anyone will ask me remove this patch and use > TRACER, becaue it was working before. :) Ajeet, Sorry, by TRACER, do you mean PREEMPT_TRACER or something else? And what specific 2.6.X kernel were you using? Steven, I'm seeing: config PREEMPT_TRACER bool "Preemption-off Latency Tracer" default n depends on !ARCH_USES_GETTIMEOFFSET Do you have any context as to why is !ARCH_USES_GETTIMEOFFSET flagged here? thanks -john