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[Bug 1708604] Re: Backport recent bbr bugfixes to 4.10 kernel

 

I'm setting the Xenial task to invalid, since these patches are only for
4.10. Xenial/hwe kernel will get these patches automatically.

** Changed in: linux (Ubuntu Xenial)
       Status: Confirmed => Invalid

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https://bugs.launchpad.net/bugs/1708604

Title:
  Backport recent bbr bugfixes to 4.10 kernel

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Xenial:
  Invalid
Status in linux source package in Zesty:
  Fix Committed

Bug description:
  4.10 kernel is commonly used to test BBR Congestion Control
  deployments.

  Recent net-next pull in 4.13-rc1 had a bunch of fixes for the initial BBR release, namely:
  4aea287e90dd61a48268ff2994b56f9799441b62 tcp_bbr: cut pacing rate only if filled pipe
  f19fd62dafaf1ed6cf615dba655b82fa9df59074 tcp_bbr: introduce bbr_bw_to_pacing_rate() helper
  79135b89b8af304456bd67916b80116ddf03d7b6 tcp_bbr: introduce bbr_init_pacing_rate_from_rtt() helper
  1d3648eb5d1fe9ed3d095ed8fa19ad11ca4c8bc0 tcp_bbr: remove sk_pacing_rate=0 transient during init
  32984565574da7ed3afa10647bb4020d7a9e6c93 tcp_bbr: init pacing rate on first RTT sample

  All of them marked as 'Fixes: 0f8782ea1497 ("tcp_bbr: add BBR
  congestion control")', which makes them legitimate bugfixes.

  All of them constrained to `net/ipv4/tcp_bbr.c` and should be trivial
  to cherrypick into 4.10.

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