netdev - Re: [PATCH v3 net-next] tcp: Remove use of daddr

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Date:   Thu, 19 Oct 2017 13:32:41 +0100 (WEST)
From:   David Miller <davem@...emloft.net>
To:     dsahern@...il.com
Cc:     netdev@...r.kernel.org, xiyou.wangcong@...il.com,
        eric.dumazet@...il.com
Subject: Re: [PATCH v3 net-next] tcp: Remove use of daddr_cache in
 tracepoint

From: David Ahern <dsahern@...il.com>
Date: Tue, 17 Oct 2017 13:09:33 -0700

> Running perf in one window to capture tcp_retransmit_skb tracepoint:
>     $ perf record -e tcp:tcp_retransmit_skb -a
> 
> And causing a retransmission on an active TCP session (e.g., dropping
> packets in the receiver, changing MTU on the interface to 500 and back
> to 1500) triggers a panic:
 ...
> Remove use of ipv6_pinfo in favor of data in sock_common.
> 
> Fixes: e086101b150a ("tcp: add a tracepoint for tcp retransmission")
> Signed-off-by: David Ahern <dsahern@...il.com>

This doesn't apply to net-next, please respin.

Thanks.