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Date:	Wed, 11 Jun 2014 21:05:43 -0700 (PDT)
From:	dormando <>
To:	Eric Dumazet <>
cc:	Alexey Preobrazhensky <>,
	Steffen Klassert <>,
	David Miller <>,,, Kostya Serebryany <>,
	Dmitry Vyukov <>,
	Lars Bull <>,
	Eric Dumazet <>,
	Bruce Curtis <>,
	Maciej ┼╗enczykowski <>,
	Alexei Starovoitov <>
Subject: Re: [PATCH] ipv4: fix a race in ip4_datagram_release_cb()

On Wed, 11 Jun 2014, Eric Dumazet wrote:

> On Wed, 2014-06-11 at 18:55 -0700, dormando wrote:
> > I sent the udpkill utility in an off-list mail (in case that got binned by
> > anyone).
> >
> > Just threw this patch on top of the other two, on 3.10.42. udpkill's been
> > running for an hour without fault. I've just put traffic back onto the
> > machine am leaving udpkill enabled for a while longer.
> >
> > So, this is an improvement :)
> Nice. I suspect regression came with 3.6 ip route cache removal, but I
> am lazy to point the exact commit.

Think I owe you a keg at this point. I'll let this bake and we'll see if
the other crashes come back... it'll take a week or two.

I'll have to circle back around to figure out what's gone wrong with 3.14.

Please let me know if there's anything else to test.
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