From: Tabris <tabris@tabris.net>
To: Lawrence Walton <lawrence@the-penguin.otak.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: opps 2.4.20-pre5-ac2
Date: Sun, 8 Sep 2002 17:53:14 -0400 [thread overview]
Message-ID: <200209081753.14660.tabris@tabris.net> (raw)
In-Reply-To: <20020908203126.GA11475@the-penguin.otak.com>
This is an interaction of the rmap vm patch (included in -ac) and the nVidia
binary driver. I have run into this myself, tho it doesn't usually cause a
lockup for me. (instead, it puts kswapd in the Z state (it aparrently never
respawns), and makes shutting down a PITA.))
Mind you, this is a bug in the nVidia driver, not the linux kernel, where it
pulls a behaviour that never was really correct before, but did work. This
bug truly needs to be reported to nVidia.
Not having that specific kernel tree on my system atm, I can't seem to find
the line that is BUG()'ing. But iirc, it's in this set
if (page->buffers)
BUG();
if (page->mapping)
BUG();
if (!VALID_PAGE(page))
BUG();
if (PageLocked(page))
BUG();
if (PageActive(page))
BUG();
page->flags &= ~((1<<PG_referenced) | (1<<PG_dirty));
and is the (page->mapping) test.
please, check your tree for the correct line (102 of page_alloc.c) to verify
this, and then pass it along to nVidia.
--
tabris
next prev parent reply other threads:[~2002-09-08 21:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-08 20:31 opps 2.4.20-pre5-ac2 Lawrence Walton
2002-09-08 21:53 ` Tabris [this message]
2002-09-09 0:19 ` Lawrence Walton
2002-09-09 21:09 ` Alan Cox
2002-10-01 12:56 ` Daniel Phillips
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