Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757392AbYKUQdW (ORCPT ); Fri, 21 Nov 2008 11:33:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751049AbYKUQdL (ORCPT ); Fri, 21 Nov 2008 11:33:11 -0500 Received: from fk-out-0910.google.com ([209.85.128.184]:26351 "EHLO fk-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752059AbYKUQdJ (ORCPT ); Fri, 21 Nov 2008 11:33:09 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=message-id:date:from:reply-to:to:subject:cc:in-reply-to :mime-version:content-type:content-transfer-encoding :content-disposition:references; b=J4aQK6MVbIrmwH3aKY01QJUt4UOPcBeenFqypFXRXKHeqCA46M8gjhizYbAujr7+It /DOwUZqhzUuzP2CDPBTWaX0hinLmTjduPOrIvLQp7Oui7/h9srl0m8Dmy50pkngEr3is OjRPZuHq1ziJygRzVVUOFQoUOvNSPOeakSMfs= Message-ID: <7c86c4470811210833l5c8005b4l675bc51df50affaa@mail.gmail.com> Date: Fri, 21 Nov 2008 17:33:07 +0100 From: "stephane eranian" Reply-To: eranian@gmail.com To: "Metzger, Markus T" Subject: Re: debugctl msr Cc: "Markus Metzger" , "Ingo Molnar" , "Andi Kleen" , "Andrew Morton" , "linux-kernel@vger.kernel.org" In-Reply-To: <928CFBE8E7CB0040959E56B4EA41A77E08F3B93D@irsmsx504.ger.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <7c86c4470810300753v7d377092qbcd266178d8e7338@mail.gmail.com> <7c86c4470811190913u743706abgafff3b0f0e3559ec@mail.gmail.com> <1227119245.6025.12.camel@raistlin> <7c86c4470811191120i63b70970s3e24af5c962ea538@mail.gmail.com> <1227133570.6104.10.camel@raistlin> <7c86c4470811201319x2eb93d41vbdd8ce480a797fab@mail.gmail.com> <928CFBE8E7CB0040959E56B4EA41A77E08F115BC@irsmsx504.ger.corp.intel.com> <7c86c4470811210538i5e6958e1p2c31effa762f5914@mail.gmail.com> <7c86c4470811210727o13006d5bk5bcbacb791e51b1c@mail.gmail.com> <928CFBE8E7CB0040959E56B4EA41A77E08F3B93D@irsmsx504.ger.corp.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1153 Lines: 35 On Fri, Nov 21, 2008 at 5:10 PM, Metzger, Markus T wrote: >>-----Original Message----- >>From: stephane eranian [mailto:eranian@googlemail.com] >>Sent: Freitag, 21. November 2008 16:27 >>To: Metzger, Markus T >>Cc: Markus Metzger; Ingo Molnar; Andi Kleen; Andrew Morton; >>linux-kernel@vger.kernel.org >>Subject: Re: debugctl msr > >>The absolute maximum MUST be at buffer+size+1 but the >>threshold can be anywhere >>between the start of the buffer and buffer+size. You had it set past >>the end of the buffer (at +1), >>therefore PEBS was not generating any interrupts. > > The default is cyclic mode, which requires the interrupt threshold > to be outside of the buffer. > That's not what I need. > A request for interrupt mode should have got you -EOPNOTSUPP. I did not try that. > > Absolute max should be one byte beyond the buffer, which > is base + size. > My bad ;-< -- 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/