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From:   Greg KH <gregkh@linuxfoundation.org>
To:     "Mohamed Abuelfotoh, Hazem" <abuehaze@amazon.com>
Cc:     Eric Dumazet <edumazet@google.com>,
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Subject: Re: [PATCH net-next] tcp: optimise receiver buffer autotuning
 initialisation for high latency connections
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On Mon, Dec 07, 2020 at 04:34:57PM +0000, Mohamed Abuelfotoh, Hazem wrote:
> 100ms RTT
> 
> >Which exact version of linux kernel are you using ?
> On the receiver side I could see the issue with any mainline kernel
> version >=4.19.86 which is the first kernel version that has patches
> [1] & [2] included.  On the sender I am using kernel 5.4.0-rc6.

5.4.0-rc6 is a very old and odd kernel to be doing anything with.  Are
you sure you don't mean "5.10-rc6" here?

thanks,

greg k-h