From mboxrd@z Thu Jan 1 00:00:00 1970 Received: with ECARTIS (v1.0.0; list linux-mips); Fri, 29 Jan 2010 14:24:00 +0100 (CET) Received: from localhost.localdomain ([127.0.0.1]:48823 "EHLO h5.dl5rb.org.uk" rhost-flags-OK-OK-OK-FAIL) by eddie.linux-mips.org with ESMTP id S1492627Ab0A2NX4 (ORCPT ); Fri, 29 Jan 2010 14:23:56 +0100 Received: from h5.dl5rb.org.uk (localhost.localdomain [127.0.0.1]) by h5.dl5rb.org.uk (8.14.3/8.14.3) with ESMTP id o0TDO7k9016406; Fri, 29 Jan 2010 14:24:07 +0100 Received: (from ralf@localhost) by h5.dl5rb.org.uk (8.14.3/8.14.3/Submit) id o0TDO7GI016396; Fri, 29 Jan 2010 14:24:07 +0100 Date: Fri, 29 Jan 2010 14:24:07 +0100 From: Ralf Baechle To: Guenter Roeck Cc: linux-mips@linux-mips.org Subject: Re: Kernel crash in 2.6.32.6 / bcm1480 with 16k page size Message-ID: <20100129132406.GD5685@linux-mips.org> References: <20100128155514.GA31611@ericsson.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100128155514.GA31611@ericsson.com> User-Agent: Mutt/1.5.20 (2009-08-17) X-archive-position: 25736 X-ecartis-version: Ecartis v1.0.0 Sender: linux-mips-bounce@linux-mips.org Errors-to: linux-mips-bounce@linux-mips.org X-original-sender: ralf@linux-mips.org Precedence: bulk X-list: linux-mips Return-Path: X-Keywords: X-UID: 18816 On Thu, Jan 28, 2010 at 07:55:14AM -0800, Guenter Roeck wrote: > > I get the following kernel crash when running a 2.6.32.6 kernel on a bcm1480 cpu. > It only happens if I configure a page size of 16k or 64k; 4k page size is fine. > > A similar problem was recently fixed for ppc. It turned out to be a problem in ppc > specific memory management code, so that fix won't help here. > > Has anyone else seen this before ? Any idea where to start looking for the problem ? Supposedly this was working for SB1. I suggest you find an older kernel version that works for your with 16k pages then use git bisect to find the problem. Ralf