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The emergency dataspace is used to accommodate the corner case where a signal context capability is created while issuing the first resource request. Normally, the attempt to upgrade the signal-session quota under such a constrained situation would fail. By freeing the emergency dataspace in this situation, we regain enough quota to upgrade the signal session. This is a follow up commit for "base: Raise RAM quota of signal session to 16K" and fixes the resource_request test on 64-bit platforms.
This is generic part of the Genode implementation. It consists of two parts: :_Core_: is the ultimate root of the Genode application tree and provides abstractions for the lowest-level hardware resources such as RAM, ROM, CPU, and generic device access. All generic parts of Core can be found here - for system-specific implementations refer to the appropriate 'base-<system>' directory. :_Base libraries and protocols_: that are used by each Genode component to interact with other components. This is the glue that holds everything together.