sysctl net.ipv4.tcp_available_congestion_control
返回结果
net.ipv4.tcp_available_congestion_control = bbr_powered bbr cubic reno

测试多个vps商的centos6 32&64 第一步走完后，重启便死在boot那里，应该是内核问题。

先按脚本跑失败, sudo apt-get purge linux-image-4.15.0-36-generic 有bug
No rule to make target `modules'. Stop.
然后
sudo apt-get install --reinstall linux-image-4.15.0-36-generic linux-modules-4.15.0-36-generic linux-modules-extra-4.15.0-36-generic
sudo apt-get install --reinstall linux-headers-generic linux-headers-$(uname -r) gcc g++ build-essential git
再 从D4.sh的 echo 'obj-m:=tcp_bbr_powered.o' >./Makefile 开始跑, 把后面的23替换成36
mod编译成功 重启后, 没发现问题
默认装的tcp_bbr重启后也不加载了

刚开始用的时候速度很快这两天突然掉到几百kb了油管，我想查看一下运行状态是否正常，还是小鸡抽了

已经安装，当前网络情况下测试无效果，如何uninstall再行比对？

E: The package linux-image-4.11.8-041108-generic needs to be reinstalled, but I can't find an archive for it.

新独立服务器 安装 CBBR 直接挂掉了，服务器启都起步动不了。

版本：

=============
[root@caesardata ~]# cat /etc/issue

CentOS Linux 7 (Core)

Linux caesardata 4.9.124-xxxx-std-ipv6-64 #346072 SMP Wed Aug 29 07:54:55 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Server : 908416
IPv4 : XXXXXXXXXX
IPv6 : XXXXXXXXXX
Hostname : caesardata

CentOS7 重启后，lsmod | grep bbr，已经看不到魔改bbr了，需要重新执行C72.sh ，有没有更快捷的方式？

https://raw.githubusercontent.com/nanqinlang/tcp_nanqinlang-test/master/tcp_nanqinlang.c
Resolving raw.githubusercontent.com (raw.githubusercontent.com)... 151.101.0.133, 151.101.64.133, 151.101.128.133, ...
Connecting to raw.githubusercontent.com (raw.githubusercontent.com)|151.101.0.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 36157 (35K) [text/plain]
Saving to: ‘./tcp_bbr_powered.c’

./tcp_bbr_powered.c 100%[===========================>] 35.31K --.-KB/s in 0.001s

2018-05-17 05:31:47 (44.5 MB/s) - ‘./tcp_bbr_powered.c’ saved [36157/36157]

Install error.