From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e33.co.us.ibm.com (8.13.8/8.13.8) with ESMTP id l3ONx5RG001895 for ; Tue, 24 Apr 2007 19:59:05 -0400 Received: from d03av02.boulder.ibm.com (d03av02.boulder.ibm.com [9.17.195.168]) by d03relay04.boulder.ibm.com (8.13.8/8.13.8/NCO v8.3) with ESMTP id l3ONx4F5127690 for ; Tue, 24 Apr 2007 17:59:04 -0600 Received: from d03av02.boulder.ibm.com (loopback [127.0.0.1]) by d03av02.boulder.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id l3ONx48t018323 for ; Tue, 24 Apr 2007 17:59:04 -0600 Subject: Re: 2.6.21-rc7-mm1 on test.kernel.org From: Badari Pulavarty In-Reply-To: <20070424130601.4ab89d54.akpm@linux-foundation.org> References: <20070424130601.4ab89d54.akpm@linux-foundation.org> Content-Type: text/plain Date: Tue, 24 Apr 2007 16:59:29 -0700 Message-Id: <1177459170.1281.5.camel@dyn9047017100.beaverton.ibm.com> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: linux-mm , Andy Whitcroft , Christoph Lameter List-ID: On Tue, 2007-04-24 at 13:06 -0700, Andrew Morton wrote: > An amd64 machine is crashing badly. > > http://test.kernel.org/abat/84767/debug/console.log > > VFS: Mounted root (ext3 filesystem) readonly. > Freeing unused kernel memory: 308k freed > INIT: version 2.86 booting > Bad page state in process 'init' > page:ffff81007e492628 flags:0x0100000000000000 mapping:0000000000000000 mapcount:0 count:1 > Trying to fix it up, but a reboot is needed > Backtrace: > > Call Trace: > [] bad_page+0x74/0x10d > [] free_hot_cold_page+0x8d/0x172 ... > > So free_pgd_range() is freeing a refcount=1 page. Can anyone see what > might be causing this? The quicklist code impacts this area more than > anything else.. > Yep. quicklist patches are causing these. making CONFIG_QUICKLIST=n didn't solve the problem. I had to back out all quicklist patches to make my machine boot. Thanks, Badari -- 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: email@kvack.org