Kernel: Keeping Control in the Hands of the User and KUnit
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Keeping Control in the Hands of the User
Various efforts always are underway to implement Secure Boot and to add features that will allow vendors to lock users out of controlling their own systems. In that scenario, users would look helplessly on while their systems refused to boot any kernels but those controlled by the vendors.
The vendors' motivation is clear—if they control the kernel, they can then stream media on that computer without risking copyright infringement by the user. If the vendor doesn't control the system, the user might always have some secret piece of software ready to catch and store any streamed media that could then be shared with others who would not pay the media company for the privilege.
Recently, Chen Yu and other developers tried to submit patches to enhance Secure Boot so that when the user hibernated the system, the kernel itself would encrypt its running image. This would appear to be completely unnecessary, since as Pavel Machek pointed out, there is already uswsusp (userspace software suspend), which encrypts the running image before suspending the system. As Pavel said, the only difference was that uswusp ran in userspace and not kernel space.
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Google Engineer Proposes KUnit As New Linux Kernel Unit Testing Framework
Google engineer Brendan Higgins sent out an experimental set of 31 patches today introducing KUnit as a new Linux kernel unit testing framework to help preserve and improve the quality of the kernel's code.
KUnit is a unit testing framework designed for the Linux kernel and inspired by the well known JUnit as well as Googletest and other existing unit testing frameworks for designing unit tests and related functionality.
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