From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [PATCH net] tcp: tcp_probe: use spin_lock_bh()
Date: Tue, 14 Feb 2017 22:24:10 -0800
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Cc: Ricardo Nabinger Sanchez <rnsanchez@gmail.com>,
        David Miller <davem@davemloft.net>, netdev@vger.kernel.org
To: Eric Dumazet <eric.dumazet@gmail.com>
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On Tue, 14 Feb 2017 17:11:14 -0800
Eric Dumazet <eric.dumazet@gmail.com> wrote:

> From: Eric Dumazet <edumazet@google.com>
> 
> tcp_rcv_established() can now run in process context.
> 
> We need to disable BH while acquiring tcp probe spinlock,
> or risk a deadlock.
> 
> Fixes: 5413d1babe8f ("net: do not block BH while processing socket backlog")
> Signed-off-by: Eric Dumazet <edumazet@google.com>
> Reported-by: Ricardo Nabinger Sanchez <rnsanchez@gmail.com>

Thanks. Also glad to see people are still using TCP probe.