> BTW, after pick up a new patch, how to trigger kernel build/boot and
> lava system to test the kernel tree?

the CI job is pulling from linux-linaro-stable tree:
https://git.linaro.org/gitweb?p=kernel/linux-linaro-stable.git;a=summary

the patch hasn't been pushed yet.

to trigger a build:
go to https://ci.linaro.org/jenkins/job/linux-linaro-stable-lsk/
click build now button (you should be authenticated)