Description:
Kill docker-containerd continuously, and use kill -SIGUSR1 <dockerpid>
to check docker callstacks. And we will find that event
handler: startEventsMonitor or handleEventStream will exit.
This will only happen when system is busy, containerd need more time to
startup, and the monitor gorotine maybe exit.
Signed-off-by: Wentao Zhang <zhangwentao234@huawei.com>
Upstream-commit: 02ce73f62e73e78a4ec29b29fb2ba552221fe885
Component: engine
292fba1b59