Linux kernel maintainer Greg Kroah-Hartman has extended the support lifetimes of several long-term kernels, after consultations with major users and fellow maintainers.
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，这一点在PDF资料中也有详细论述
I found the Lenovo ThinkPad to rule them all - and its modular RAM changes everything
https://source.android.com/docs/core/architecture/aidl/aidl-hals#sepolicy