Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751081AbWEVRjb (ORCPT ); Mon, 22 May 2006 13:39:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751087AbWEVRjb (ORCPT ); Mon, 22 May 2006 13:39:31 -0400 Received: from smtp.osdl.org ([65.172.181.4]:30606 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1751081AbWEVRjb (ORCPT ); Mon, 22 May 2006 13:39:31 -0400 Date: Mon, 22 May 2006 10:39:15 -0700 From: Andrew Morton To: Zach Brown Cc: rdunlap@xenotime.net, linux-kernel@vger.kernel.org Subject: Re: [PATCH] kmap tracking Message-Id: <20060522103915.53e03867.akpm@osdl.org> In-Reply-To: <4471EA2C.4010401@oracle.com> References: <20060518155357.04066e9c.rdunlap@xenotime.net> <4471EA2C.4010401@oracle.com> X-Mailer: Sylpheed version 1.0.4 (GTK+ 1.2.10; i386-redhat-linux-gnu) Mime-Version: 1.0 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 Content-Length: 862 Lines: 21 Zach Brown wrote: > > Randy.Dunlap wrote: > > From: Randy Dunlap > > > > Track kmap/kunmap call history, storing caller function address, > > action, and time (jiffies), if CONFIG_DEBUG_KMAP is enabled. > > Based on a patch to 2.4.21 by Zach Brown that was used successfully > > at Oracle to track down some kmap/kunmap problems. > > Thanks for bringing this to 2.6.. sorry for the lag in reviewing. I was scratching my head over this patch trying to think of any bug in recent years which it would have detected. I failed. So... what's the motivator here? - 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/