Re: [PATCH] tcp: initialize rcv_tstamp for restored sockets
From: Andrey Vagin Date: Tue, 27 Aug 2013 12:20:40 +0400 > From: Andrew Vagin > > u32 rcv_tstamp; /* timestamp of last received ACK */ > > Its value used in tcp_retransmit_timer, which closes socket > if the last ack was received more then TCP_RTO_MAX ago. > > Currently rcv_tstamp is initialized to zero and if tcp_retransmit_timer > is called before receiving a first ack, the connection is closed. > > This patch initializes rcv_tstamp to a timestamp, when a socket was > restored. > > Reported-by: Cyrill Gorcunov > Signed-off-by: Andrey Vagin Applied and queued up for -stable. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: [PATCH] tcp: initialize rcv_tstamp for restored sockets
From: Andrey Vagin ava...@openvz.org Date: Tue, 27 Aug 2013 12:20:40 +0400 From: Andrew Vagin ava...@openvz.org u32 rcv_tstamp; /* timestamp of last received ACK */ Its value used in tcp_retransmit_timer, which closes socket if the last ack was received more then TCP_RTO_MAX ago. Currently rcv_tstamp is initialized to zero and if tcp_retransmit_timer is called before receiving a first ack, the connection is closed. This patch initializes rcv_tstamp to a timestamp, when a socket was restored. Reported-by: Cyrill Gorcunov gorcu...@openvz.org Signed-off-by: Andrey Vagin ava...@openvz.org Applied and queued up for -stable. -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH] tcp: initialize rcv_tstamp for restored sockets
From: Andrew Vagin u32 rcv_tstamp; /* timestamp of last received ACK */ Its value used in tcp_retransmit_timer, which closes socket if the last ack was received more then TCP_RTO_MAX ago. Currently rcv_tstamp is initialized to zero and if tcp_retransmit_timer is called before receiving a first ack, the connection is closed. This patch initializes rcv_tstamp to a timestamp, when a socket was restored. Cc: Pavel Emelyanov Cc: Eric Dumazet Cc: "David S. Miller" Cc: Alexey Kuznetsov Cc: James Morris Cc: Hideaki YOSHIFUJI Cc: Patrick McHardy Reported-by: Cyrill Gorcunov Signed-off-by: Andrey Vagin --- net/ipv4/tcp_output.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 92fde8d..e297299 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2814,6 +2814,8 @@ void tcp_connect_init(struct sock *sk) if (likely(!tp->repair)) tp->rcv_nxt = 0; + else + tp->rcv_tstamp = tcp_time_stamp; tp->rcv_wup = tp->rcv_nxt; tp->copied_seq = tp->rcv_nxt; -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH] tcp: initialize rcv_tstamp for restored sockets
From: Andrew Vagin ava...@openvz.org u32 rcv_tstamp; /* timestamp of last received ACK */ Its value used in tcp_retransmit_timer, which closes socket if the last ack was received more then TCP_RTO_MAX ago. Currently rcv_tstamp is initialized to zero and if tcp_retransmit_timer is called before receiving a first ack, the connection is closed. This patch initializes rcv_tstamp to a timestamp, when a socket was restored. Cc: Pavel Emelyanov xe...@parallels.com Cc: Eric Dumazet eric.duma...@gmail.com Cc: David S. Miller da...@davemloft.net Cc: Alexey Kuznetsov kuz...@ms2.inr.ac.ru Cc: James Morris jmor...@namei.org Cc: Hideaki YOSHIFUJI yoshf...@linux-ipv6.org Cc: Patrick McHardy ka...@trash.net Reported-by: Cyrill Gorcunov gorcu...@openvz.org Signed-off-by: Andrey Vagin ava...@openvz.org --- net/ipv4/tcp_output.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 92fde8d..e297299 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2814,6 +2814,8 @@ void tcp_connect_init(struct sock *sk) if (likely(!tp-repair)) tp-rcv_nxt = 0; + else + tp-rcv_tstamp = tcp_time_stamp; tp-rcv_wup = tp-rcv_nxt; tp-copied_seq = tp-rcv_nxt; -- 1.8.3.1 -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
