Re: VM: Fix nasty and subtle race in shared mmap'ed page writeback

[Hugh Dickins]

On Wed, 3 Jan 2007, Andrew Morton wrote:
> On Wed, 03 Jan 2007 22:56:07 -0800 (PST)
> David Miller <davem@xxxxxxxxxxxxx> wrote:
> > From: Andrew Morton <akpm@xxxxxxxx>
> > > 
> > > It'd odd that stories of pre-2.6.19 BerkeleyDB corruption are now coming
> > > out of the woodwork.  It's the first I've ever heard of them.
> > 
> > Note that the original rtorrent debian bug report was against 2.6.18
> 
> I think that was 2.6.18+debian-added-dirty-page-tracking-patches.

That's right.  Debian's 2.6.18-3, not -stable's 2.6.18.3 as Linus feared.
I'll be sending 2.6.18-stable the fix to the msync ENOMEM-on-unmapped
issue later today (that little buglet being what led them to integrate
the much more interesting dirty page tracking patches, which happened
to fix it in passing).

Hugh
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