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The change "core: allow offset-attached managed dataspaces" addressed a corner case of the use of nested region maps. Apparently, this change negatively affects other scenarios (tool_chain_auto). In order to confidently cover all the differnt situations, this patch reworks the page-fault resolution code for improved clarity and safety, by introducing dedicated result types, reducing the use of basic types, choosing expressive names, and fostering constness. It also introduces a number of 'print' hooks that greatly ease manual instrumentation and streamlines the error messages printed by core. Those messages no longer appear when a user-level page-fault handler is reistered for the faulted-at region map. So the monitor component produces less noise on the attempt to dump non-existing memory. Issue #4917 Fixes #4920 |
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This repository contains the support of Genode for the OKL4 kernel version 2.1.