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Date: Tue, 1 Oct 2002 14:08:41 -0700
From: Lawrence Walton <lawrence@the-penguin.otak.com>
To: Rik van Riel <riel@conectiva.com.br>
Cc: Andrew Morton <akpm@digeo.com>,
       linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Oops iee1394 video1394 rmap
Message-ID: <20021001210841.GA25577@the-penguin.otak.com>
References: <3D9A04B4.B1355CB6@digeo.com> <Pine.LNX.4.44L.0210011729010.1909-100000@duckman.distro.conectiva>
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Rik van Riel [riel@conectiva.com.br] wrote:
> On Tue, 1 Oct 2002, Andrew Morton wrote:
> 
> > This would appear to be a page which was mapped by remap_page_range().
> > It's not PageReserved, and it has no reverse mapping.
> >
> > I believe the right fix is to just delete the BUG check at rmap.c:280.
> 
> Yes.  I used to have this bugcheck in 2.4-rmap but removed it
> ages ago. I have no idea why it was reintroduced in 2.5...
> 
It works fine, no surprises at all, I am doing a fresh mozilla compile, burning a CD, 
playing music, and the camera works great!

Here is my pitiful patch. :)

--- mm/rmap.c.org	2002-10-01 13:28:54.000000000 -0700
+++ mm/rmap.c	2002-10-01 13:29:07.000000000 -0700
@@ -277,8 +277,6 @@
 
 	pte_chain_lock(page);
 
-	BUG_ON(page->pte.direct == 0);
- 
 	if (PageDirect(page)) {
 		if (page->pte.direct == pte_paddr) {
 			page->pte.direct = 0;
-- 
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