X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=TODO;h=9825200fed911631d245c7fa0048ee61476789fb;hb=dd07a992c428c400a35f132a418b2b4bb2301e6a;hp=8aaf1377022dc3b4aa5ee251768ee8723ef40585;hpb=2e4d5e42ff339d8a792fa648622e2903644d47c6;p=pintos-anon

diff --git a/TODO b/TODO
index 8aaf137..9825200 100644
--- a/TODO
+++ b/TODO
@@ -2,6 +2,11 @@
 
 * The tests in tests/ don't apply the grading patches.
 
+* We need better example programs.
+
+  - Need an mmap example program as a replacement for the crappy mmap FAQ
+    question.
+
 * Threads:
 
   - join-invalid doesn't compile if tid_t is not scalar type.
@@ -33,6 +38,32 @@
     Alternately we could just remove the synchronization on pid
     selection and check that students fix it.
 
+* VM project:
+
+  - Discuss the perils of mixing dirty bits between kernel and user virtual
+    memory.
+
+  - Sample solution.
+
+  - Update grading/vm to reflect new mmap, munmap forms.
+
+* Filesys project:
+
+  - Increase maximum disk size from 8 MB to something that actually
+    requires doubly indirect nodes.  There is a negative pressure here
+    from the bitmap object--perhaps we need a specialized bitmap that
+    doesn't have to be all in-memory at once.
+
+    Alternatively, shrink the inode size.
+
+  - Add mkdir and ls example user programs.
+
+  - Add option to disable buffer cache.
+
+  - Get rid of "dump" commands--they're not really useful.
+
+  - Sample solution.
+
 * Documentation:
 
   - Finish writing tour.
@@ -49,10 +80,9 @@
 
     . Low-level x86 stuff, like paged page tables.
 
-    . Other good ideas.
+    . Specifics on how to implement sbrk, malloc.
 
-  - mmap/munmap should use segment IDs like Nachos.  Too hard
-    otherwise.
+    . Other good ideas.
 
   - Add src/testcases/vm, src/testcases/filesys and make it clear to use
     them?