From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753826Ab0DTP4Q (ORCPT ); Tue, 20 Apr 2010 11:56:16 -0400 Received: from rcsinet10.oracle.com ([148.87.113.121]:65511 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751508Ab0DTP4O (ORCPT ); Tue, 20 Apr 2010 11:56:14 -0400 Date: Tue, 20 Apr 2010 08:53:50 -0700 From: Randy Dunlap To: Don Zickus Cc: mingo@elte.hu, fweisbec@gmail.com, peterz@infradead.org, gorcunov@gmail.com, aris@redhat.com, linux-kernel@vger.kernel.org, randy.dunlap@oracle.com Subject: Re: [PATCH 1/6] [watchdog] combine nmi_watchdog and softlockup Message-Id: <20100420085350.fce77f4f.randy.dunlap@oracle.com> In-Reply-To: <1271777043-3807-2-git-send-email-dzickus@redhat.com> References: <1271777043-3807-1-git-send-email-dzickus@redhat.com> <1271777043-3807-2-git-send-email-dzickus@redhat.com> Organization: Oracle Linux Eng. X-Mailer: Sylpheed 2.7.1 (GTK+ 2.16.6; x86_64-unknown-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Auth-Type: Internal IP X-Source-IP: rcsinet15.oracle.com [148.87.113.117] X-CT-RefId: str=0001.0A090208.4BCDCE78.0016:SCFMA4539811,ss=1,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 20 Apr 2010 11:23:58 -0400 Don Zickus wrote: > diff --git a/init/Kconfig b/init/Kconfig > index 7331a16..98e3f5f 100644 > --- a/init/Kconfig > +++ b/init/Kconfig > @@ -948,8 +948,11 @@ config PERF_USE_VMALLOC > > config PERF_EVENTS_NMI > bool > + depends on PERF_EVENTS > help > - Arch has support for nmi_watchdog > + Arch can generate an NMI using the perf event subsystem Hi Don, I realize that you didn't introduce Arch in this help text, but can we eliminate him, please? E.g.: Platform can generate an NMI using the perf event subsystem. or System hardware can generate an NMI using the perf event subsystem. > + Also has support for calculating cpu cycle events to CPU > + determine how many clock cycles in a given period period. > > menu "Kernel Performance Events And Counters" --- ~Randy