On Fri, 14 Jul 2017 17:49:21 -0400
Neal Cardwell <[email protected]> wrote:
> In bbr_set_pacing_rate(), which decides whether to cut the pacing
> rate, there was some code that considered exiting STARTUP to be
> equivalent to the notion of filling the pipe (i.e.,
> bbr_full_bw_reached()). Specifically, as the code was structured,
> exiting STARTUP and going into PROBE_RTT could cause us to cut the
> pacing rate down to something silly and low, based on whatever
> bandwidth samples we've had so far, when it's possible that all of
> them have been small app-limited bandwidth samples that are not
> representative of the bandwidth available in the path. (The code was
> correct at the time it was written, but the state machine changed
> without this spot being adjusted correspondingly.)
>
> Fixes: 0f8782ea1497 ("tcp_bbr: add BBR congestion control")
> Signed-off-by: Neal Cardwell <[email protected]>
> Signed-off-by: Yuchung Cheng <[email protected]>
> Signed-off-by: Soheil Hassas Yeganeh <[email protected]>
Looks good, but net-next is closed at this time. Please resubmit later.
http://vger.kernel.org/~davem/net-next.html
