为什么在docker中运行openstack容器时会出现“Watchdog: BUG: Soft lockup CPU”错误。

Question

我刚刚使用kolla和kolla-ansible稳定/pike版本部署了openstack。我部署在一个控制节点和一个计算节点上。它起作用了，但当我尝试使用horizon仪表板时，控制节点非常慢，并且锁定，终端输出以下内容：

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [runc:[2:INIT]:10527]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#4 stuck for 23s! [fluentd:5005]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#8 stuck for 23s! [keepalived:10664]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#15 stuck for 23s! [java:5604]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#5 stuck for 23s! [neutron-openvsw:3101]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#3 stuck for 23s! [cinder-schedule:3193]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#7 stuck for 23s! [java:6186]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#11 stuck for 23s! [docker-containe:6601]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#12 stuck for 22s! [keepalived:4295]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#10 stuck for 22s! [keepalived:10666]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#9 stuck for 22s! [gmain:939]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#13 stuck for 22s! [node:3261]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#6 stuck for 22s! [neutron-l3-agen:5071]

Message from syslogd@openstackcontroller at Nov  7 21:46:39 ...
 kernel:NMI watchdog: BUG: soft lockup - CPU#14 stuck for 22s! [irqbalance:898]

每当我停止在控制节点上运行的所有docker容器时，似乎没有更多的CPU锁定错误，但是一旦我再次启动在控制节点上运行openstack服务的所有docker容器，它就会再次开始非常慢的运行，并且锁定错误再次开始

Answer 1

你能使用4.6.x以上的更新的Linux内核吗？

使内核在软锁定时死机，并在死机时重启，将在一定程度上帮助恢复系统。他们为我工作。

sysctl kernel.softlockup_panic=1  # this will panic on soft lockup
sysctl kernel.panic=60            # reset system on panic after 60 seconds

上面的内核设置只适用于每个https://github.com/moby/moby/issues/19758#issuecomment-272430028的几个人。