From: Eric Dumazet <eric.dumazet@gmail.com>
To: Lorenz Bauer <lmb@cloudflare.com>,
ast@kernel.org, daniel@iogearbox.net,
"David S. Miller" <davem@davemloft.net>,
Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com>,
Richard Cochran <rcochran@linutronix.de>,
Eric Dumazet <edumazet@google.com>,
netdev@vger.kernel.org, bpf@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: kernel-team@cloudflare.com
Subject: Re: [PATCH bpf] bpf: clear skb->tstamp in bpf_redirect when necessary
Date: Fri, 13 Dec 2019 09:49:57 -0800 [thread overview]
Message-ID: <523d7946-bb5f-39a3-8969-addb564fd73c@gmail.com> (raw)
In-Reply-To: <20191213154634.27338-1-lmb@cloudflare.com>
On 12/13/19 7:46 AM, Lorenz Bauer wrote:
> Redirecting a packet from ingress to egress by using bpf_redirect
> breaks if the egress interface has an fq qdisc installed. This is the same
> problem as fixed in 8203e2d8 ("net: clear skb->tstamp in forwarding paths").
>
> Clear skb->tstamp when redirecting into the egress path.
>
> Fixes: 80b14de ("net: Add a new socket option for a future transmit time.")
Please use 12 digits sha1
> Fixes: fb420d5 ("tcp/fq: move back to CLOCK_MONOTONIC")
> Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Thanks for fixing this !
next prev parent reply other threads:[~2019-12-13 20:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-13 15:46 [PATCH bpf] bpf: clear skb->tstamp in bpf_redirect when necessary Lorenz Bauer
2019-12-13 17:49 ` Eric Dumazet [this message]
2019-12-13 18:08 ` [PATCH bpf v2] " Lorenz Bauer
2019-12-13 21:09 ` Eric Dumazet
2019-12-13 23:25 ` Alexei Starovoitov
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