linux-kernel - Re: [PATCH] tcp: fix tcp_disconnect() not clear tp->fastopen

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Message-Id: <20190910.100923.398630420341862032.davem@davemloft.net>
Date:   Tue, 10 Sep 2019 10:09:23 +0200 (CEST)
From:   David Miller <davem@...emloft.net>
To:     chunguo.feng@...ogic.com
Cc:     edumazet@...gle.com, kuznet@....inr.ac.ru, yoshfuji@...ux-ipv6.org,
        ast@...nel.org, daniel@...earbox.net, netdev@...r.kernel.org,
        kafai@...com, songliubraving@...com, yhs@...com,
        linux-kernel@...r.kernel.org, bpf@...r.kernel.org
Subject: Re: [PATCH] tcp: fix tcp_disconnect() not clear tp->fastopen_rsk
 sometimes

From: chunguo feng <chunguo.feng@...ogic.com>
Date: Fri, 6 Sep 2019 17:34:29 +0800

> From: fengchunguo <chunguo.feng@...ogic.com>
> 
> This patch avoids fastopen_rsk not be cleared every times, then occur 
> the below BUG_ON:
> tcp_v4_destroy_sock
> 	->BUG_ON(tp->fastopen_rsk);
> 
> When playback some videos from netwrok,used tcp_disconnect continually.
 ...
> Signed-off-by: fengchunguo <chunguo.feng@...ogic.com>

This still needs review.