ierdnac ~ # uname -a
Linux ierdnac 2.6.20-rc1 #1 SMP PREEMPT Sun Dec 17 01:52:28 EET 2006
i686 Genuine Intel(R) CPU T2050 @ 1.60GHz GenuineIntel
GNU/Linux
On Sun, 2006-12-17 at 04:06 -0800, Andrew Morton wrote:
> On Sun, 17 Dec 2006 02:13:18 +0200
> Andrei Popa <[email protected]> wrote:
>
> > Hello,
> > I had filesystem data corruption with rtorrent with 2.6.19.
> > I tried recent git with Peter Zijlstra patch
> > http://lkml.org/lkml/2006/12/16/144 and it seems that the problem is
> > fixed.
> >
>
> oh crap, I'd forgotten that test_clear_page_dirty() now fiddles with the
> ptes.
>
> I'd be really surprised if this was all due to a race though. Is everyone
> who has observed this problem running SMP and/or premptible kernels?
>
> Peter, why isn't that proposed patch's cleaning of the pte racy against
> do_wp_page()?
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