From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 24 Apr 2007 18:26:09 -0700 From: Andrew Morton Subject: Re: 2.6.21-rc7-mm1 on test.kernel.org Message-Id: <20070424182609.16f32f50.akpm@linux-foundation.org> In-Reply-To: <1177459170.1281.5.camel@dyn9047017100.beaverton.ibm.com> References: <20070424130601.4ab89d54.akpm@linux-foundation.org> <1177459170.1281.5.camel@dyn9047017100.beaverton.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: Badari Pulavarty Cc: linux-mm , Andy Whitcroft , Christoph Lameter List-ID: On Tue, 24 Apr 2007 16:59:29 -0700 Badari Pulavarty wrote: > 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. > Great, thanks for working that out. If people start reporting this I'll drop 'em and do an -rc2, but things are awful quiet out there. -- 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