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SubjectRe: [PATCH 4.9 00/75] 4.9.74-stable review
On Mon, Jan 1, 2018 at 9:31 AM, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
> This is the start of the stable review cycle for the 4.9.74 release.
> There are 75 patches in this series, all will be posted as a response
> to this one. If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Wed Jan 3 14:00:03 UTC 2018.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
> kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.74-rc1.gz
> or in the git tree and branch at:
> git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y
> and the diffstat can be found below.

Hi Greg,

In looking at the 4.9 and 4.14 patches yesterday, I noticed there were
two TCP BBR fixes that made it into 4.14 but not 4.9. Doing an
inventory of the TCP BBR fixes, AFAICT we have:

c589e69b508d tcp_bbr: record "full bw reached" decision in new
full_bw_reached bit
- in 4.9 and 4.14 (great)

2f6c498e4f15 tcp_bbr: reset full pipe detection on loss recovery undo
- in 4.14 (but not 4.9)

600647d467c6 tcp_bbr: reset long-term bandwidth sampling on loss recovery undo
- in 4.14 (but not 4.9)

Lacking the second and third patches in 4.9 will not cause any new
problems, but it will miss out on some nice fixes. If it's possible to
get 2f6c498e4f15 and 600647d467c6 either into 4.9.74 or 4.9.75, I
would be very grateful.

Thanks!
neal

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