From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f41.google.com (mail-pa0-f41.google.com [209.85.220.41]) by kanga.kvack.org (Postfix) with ESMTP id 56DFC6B0031 for ; Mon, 28 Oct 2013 10:13:20 -0400 (EDT) Received: by mail-pa0-f41.google.com with SMTP id rd3so2512109pab.0 for ; Mon, 28 Oct 2013 07:13:19 -0700 (PDT) Received: from psmtp.com ([74.125.245.129]) by mx.google.com with SMTP id it5si12179409pbc.65.2013.10.28.07.13.17 for ; Mon, 28 Oct 2013 07:13:17 -0700 (PDT) Received: by mail-ee0-f51.google.com with SMTP id d41so3483457eek.10 for ; Mon, 28 Oct 2013 07:13:15 -0700 (PDT) Date: Mon, 28 Oct 2013 15:13:10 +0100 From: Simon Baatz Subject: Re: ARM/kirkwood: v3.12-rc6: kernel BUG at mm/util.c:390! Message-ID: <20131028141310.GA4970@schnuecks.de> References: <20131024200730.GB17447@blackmetal.musicnaut.iki.fi> <20131026143617.GA14034@mudshark.cambridge.arm.com> <20131027195115.208f40f3@tom-ThinkPad-T410> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20131027195115.208f40f3@tom-ThinkPad-T410> Sender: owner-linux-mm@kvack.org List-ID: To: Ming Lei Cc: Will Deacon , Aaro Koskinen , Russell King - ARM Linux , catalin.marinas@arm.com, "linux-kernel@vger.kernel.org" , "linux-mm@kvack.org" , "linux-arm-kernel@lists.infradead.org" , Andrew Morton , FUJITA Tomonori , Tejun Heo , "James E.J. Bottomley" , Jens Axboe On Sun, Oct 27, 2013 at 07:51:15PM +0800, Ming Lei wrote: > diff --git a/lib/scatterlist.c b/lib/scatterlist.c > index a685c8a..eea8806 100644 > --- a/lib/scatterlist.c > +++ b/lib/scatterlist.c > @@ -577,7 +577,7 @@ void sg_miter_stop(struct sg_mapping_iter *miter) > miter->__offset += miter->consumed; > miter->__remaining -= miter->consumed; > > - if (miter->__flags & SG_MITER_TO_SG) > + if ((miter->__flags & SG_MITER_TO_SG) && !PageSlab(page)) This is what I was going to propose, but I would have used !PageSlab(miter->page) ;-) > flush_kernel_dcache_page(miter->page); With this, a kernel with DEBUG_VM now boots on Kirkwood. - Simon -- 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