On 02/27/2019 03:26 AM, Sheng Lan wrote:
>
> I traced again and found that the skb was not sent, master skb was still in
> write queue,
> because the function tcp_transmit_skb() returns 1 (NET_XMIT_DROP), thus it
> can be retransmit.
> I found the error value NET_XMIT_DROP returns from netem
在 2019/2/26 23:52, Eric Dumazet 写道:
>
>
> On 02/26/2019 05:02 AM, Sheng Lan wrote:
>>
>>
>>
>>> On Mon, 25 Feb 2019 22:49:39 +0800
>>> Sheng Lan wrote:
>>>
>>>> From: Sheng Lan
>>>> Subject: [PATCH] net: ne
On 02/26/2019 07:59 AM, Stephen Hemminger wrote:
>
>
> Maybe the fix is to stop TSO fragment from overwriting by doing something
> like:
>
> diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
> index 730bc44dbad9..5fe91d0224f6 100644
> --- a/net/ipv4/tcp_output.c
> +++ b/net/ipv4/tc
On Tue, 26 Feb 2019 21:02:10 +0800
Sheng Lan wrote:
> > On Mon, 25 Feb 2019 22:49:39 +0800
> > Sheng Lan wrote:
> >
> >> From: Sheng Lan
> >> Subject: [PATCH] net: netem: fix skb length BUG_ON in __skb_to_sgvec
> >>
> >> It can be re
On 02/26/2019 05:02 AM, Sheng Lan wrote:
>
>
>
>> On Mon, 25 Feb 2019 22:49:39 +0800
>> Sheng Lan wrote:
>>
>>> From: Sheng Lan
>>> Subject: [PATCH] net: netem: fix skb length BUG_ON in __skb_to_sgvec
>>>
>>> It can be reproduc
> On Mon, 25 Feb 2019 22:49:39 +0800
> Sheng Lan wrote:
>
>> From: Sheng Lan
>> Subject: [PATCH] net: netem: fix skb length BUG_ON in __skb_to_sgvec
>>
>> It can be reproduced by following steps:
>> 1. virtio_net NIC is configured with gso/tso on
>&
On Mon, 25 Feb 2019 22:49:39 +0800
Sheng Lan wrote:
> From: Sheng Lan
> Subject: [PATCH] net: netem: fix skb length BUG_ON in __skb_to_sgvec
>
> It can be reproduced by following steps:
> 1. virtio_net NIC is configured with gso/tso on
> 2. configure nginx as http server
From: Sheng Lan
Subject: [PATCH] net: netem: fix skb length BUG_ON in __skb_to_sgvec
It can be reproduced by following steps:
1. virtio_net NIC is configured with gso/tso on
2. configure nginx as http server with an index file bigger than 1M bytes
3. use tc netem to produce duplicate packets and
