Update NOTES

NOTES.md

@@ -7,20 +7,19 @@
   - The objects get created, but GSI lookup only uses the one at index 0
 - Slab allocator for kernel structures
 - mark kernel memory pages global
-- lock `memory_manager` and `page_manager` structures
 - Serial out based on circular/bip biffer and interrupts, not spinning on
   `write_ready()`
 - Split out more code into kutil for testing
 - AHCI / MSI interrupts on Vbox break?
 - FXSAVE to save XMM registers.
   - optimization using #NM (0x7) to detect SSE usage
+- Clean up of process memory maps
+- Better stack tracer
 
 
 - Device Tree
   - Actual serial driver
   - Disk driver
     - File system
-- Memory map swapping
 - Multiprocessing
-    - Processes in Ring 3
-- Stack tracer
+  - Syscalls