From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from westrelay02.boulder.ibm.com (westrelay02.boulder.ibm.com [9.17.195.11]) by e31.co.us.ibm.com (8.12.10/8.12.9) with ESMTP id iA2MYKLv252816 for ; Tue, 2 Nov 2004 17:34:31 -0500 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by westrelay02.boulder.ibm.com (8.12.10/NCO/VER6.6) with ESMTP id iA2MYAAY098652 for ; Tue, 2 Nov 2004 15:34:10 -0700 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.12.11/8.12.11) with ESMTP id iA2MYAQs004277 for ; Tue, 2 Nov 2004 15:34:10 -0700 Message-ID: <41880B60.9070004@us.ibm.com> Date: Tue, 02 Nov 2004 14:34:08 -0800 From: Dave Hansen MIME-Version: 1.0 Subject: Re: fix iounmap and a pageattr memleak (x86 and x86-64) References: <4187FA6D.3070604@us.ibm.com> <20041102220720.GV3571@dualathlon.random> <4188086F.8010005@us.ibm.com> <20041102142944.0be6f750.akpm@osdl.org> In-Reply-To: <20041102142944.0be6f750.akpm@osdl.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: andrea@novell.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, ak@suse.de List-ID: Andrew Morton wrote: > Dave Hansen wrote: > >>Andrea Arcangeli wrote: >> >>>Still I recommend investigating _why_ debug_pagealloc is violating the >>>API. It might not be necessary to wait for the pageattr universal >>>feature to make DEBUG_PAGEALLOC work safe. >> >>OK, good to know. But, for now, can we pull this out of -mm? Or, at >>least that BUG_ON()? DEBUG_PAGEALLOC is an awfully powerful debugging >>tool to just be removed like this. > > If we make it a WARN_ON, will that cause a complete storm of output? Yeah, just tried it. I hit a couple hundred of them before I got to init. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: aart@kvack.org