netdev - Re: TCP out of memory - possible bug [3.18.0-rc3] / sched?

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Message-ID: <1415043704.1005.0.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Mon, 03 Nov 2014 11:41:44 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Tomasz Mloduchowski <q@...t.me>
Cc:	netdev@...r.kernel.org
Subject: Re: TCP out of memory - possible bug [3.18.0-rc3] / sched?

On Mon, 2014-11-03 at 19:59 +0100, Tomasz Mloduchowski wrote:
> Hi List,
> 
> I hope this is the right place to report a networking issue with
> 3.18.0-rc2 and 3.18.0-rc3 - under heavy P2P load (tested both
> rtorrent/libtorrent and bitcoind, so not protocol-specific), the system
> quickly exhausts tcp_mem limits in a very strange sequence of events.
> 
> It might be scheduler or networking subsystem related.
> 
> It's 100% reproducible on my system, first observed under 3.18.0-rc2.
> 

Sounds a perfect case for a bisection maybe ?

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