Re: [PATCH net 2/4] tcp: tcp_fragment() should apply sane memory limits

[Eric Dumazet]

On 7/11/19 8:26 PM, Michal Kubecek wrote:

> 
> I'm aware it's not a realistic test. It was written as quick and simple
> check of the pre-4.19 patch, but it shows that even TLP may not get
> through.


Most of TLP probes send new data, not rtx.

But yes, I get your point.

SO_SNDBUF=15000 in your case is seriously wrong.

Lets code a safety feature over SO_SNDBUF to not allow pathological small 
values,
because I do not want to support a constrained TCP stack in 2019.