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As alluded to before about the appropriateness of pthread in the OS. There is a roadmap for these kinds of features. That roadmap is to continue to conform strictly to the standard OS definitions of Opengroup.org and to continue to evolve as a fully compliant, very standard, tiny Unix-like operating system.

• Part of this is getting all user interfaces out of the OS.
• Another part is migrating all pthread support out of operating system and into the user-facing C library.
• An additional objective on the roadmap is to streamline the kernel threads and to disconnect them from task groups.  Kernel threads should not be part of any task group.

From Apache NuttX Issu 1108Issue 1108 in regard to this last point: "Remove streams from Kernel Threads"

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