Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030683AbWJJXF1 (ORCPT ); Tue, 10 Oct 2006 19:05:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030686AbWJJXF1 (ORCPT ); Tue, 10 Oct 2006 19:05:27 -0400 Received: from e5.ny.us.ibm.com ([32.97.182.145]:54749 "EHLO e5.ny.us.ibm.com") by vger.kernel.org with ESMTP id S1030683AbWJJXF0 (ORCPT ); Tue, 10 Oct 2006 19:05:26 -0400 Date: Tue, 10 Oct 2006 18:05:23 -0500 To: Vadim Lobanov , Andrew Morton Cc: Olof Johansson , Andrew Morton , linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: BUG() in copy_fdtable() with 64K pages (2.6.19-rc1-mm1) Message-ID: <20061010230523.GT4381@austin.ibm.com> References: <20061010000928.9d2d519a.akpm@osdl.org> <20061010121519.447d62f8@localhost.localdomain> <20061010202034.GV4381@austin.ibm.com> <200610101331.11842.vlobanov@speakeasy.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200610101331.11842.vlobanov@speakeasy.net> User-Agent: Mutt/1.5.11 From: linas@austin.ibm.com (Linas Vepstas) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1702 Lines: 45 On Tue, Oct 10, 2006 at 01:31:11PM -0700, Vadim Lobanov wrote: > On Tuesday 10 October 2006 13:20, Linas Vepstas wrote: > > On Tue, Oct 10, 2006 at 12:15:19PM -0500, Olof Johansson wrote: > > > I keep hitting this on -rc1-mm1. The system comes up but I can't login > > > since login hits it. > > > > > > Bisect says that > > > fdtable-implement-new-pagesize-based-fdtable-allocator.patch is at fault. > > > > > > CONFIG_PPC_64K_PAGES=y is required for it to fail, with 4K pages it's > > > fine. > > > > > > (Hardware is a Quad G5, 1GB RAM, g5_defconfig + CONFIG_PPC_64K_PAGES, > > > defaults on all new options) > > > > > > kernel BUG in copy_fdtable at fs/file.c:138! > > > > FWIW, I too was hitting this bug, during init: > > > > [ 41.659823] Freeing unused kernel memory: 320k freed > > INIT: version 2.86 bootin[ 42.509322] kernel BUG in copy_fdtable at > > fs/file.c:138! > > > > and of course systm does not come up. I forgot to mention my h/w was completely different (a cell) > I'm digging through this right now, trying to figure out exactly what went > wrong (and why some people are seeing this, while others are not). All the > code seems correct; another pair of eyes is always welcome though. The patch that AKPM just posted at ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.19-rc1/2.6.19-rc1-mm1/hot-fixes/revert-fdtable-implement-new-pagesize-based-fdtable-allocator.patch boots for me. Thanks Andrew! --linas - 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/