netdev - Re: [PATCH net-next] tcp: rate limit synflood warnings further

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Message-ID: <872d627b-1f03-94fc-2444-13e9e59404a0@gmail.com>
Date:   Mon, 10 Sep 2018 00:52:14 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     Willem de Bruijn <willemdebruijn.kernel@...il.com>,
        netdev@...r.kernel.org
Cc:     davem@...emloft.net, eric.dumazet@...il.com,
        Willem de Bruijn <willemb@...gle.com>
Subject: Re: [PATCH net-next] tcp: rate limit synflood warnings further



On 09/09/2018 04:12 PM, Willem de Bruijn wrote:
> From: Willem de Bruijn <willemb@...gle.com>
> 
> Convert pr_info to net_info_ratelimited to limit the total number of
> synflood warnings.
> 
> Commit 946cedccbd73 ("tcp: Change possible SYN flooding messages")
> rate limits synflood warnings to one per listener.
> 
> Workloads that open many listener sockets can still see a high rate of
> log messages. Syzkaller is one frequent example.
> 
> Signed-off-by: Willem de Bruijn <willemb@...gle.com>

Thanks Willem

Signed-off-by: Eric Dumazet <edumazet@...gle.com>