X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=TODO;h=726b11801f8e53185edc813ce1cd37d7bbf95d10;hb=a640f749cb8760c6d00f89bad33e56ef5dce1e8b;hp=1046007979e643ade131f8c1b5576036d392c7eb;hpb=dc17c571d79b596194b88c50d5113e4a1b2f2238;p=pintos-anon

diff --git a/TODO b/TODO
index 1046007..726b118 100644
--- a/TODO
+++ b/TODO
@@ -1,29 +1,24 @@
 -*- text -*-
 
-* The tests in tests/ don't apply the grading patches.
+* Get rid of rox--causes more trouble than it's worth
 
-* We need better example programs.
+* Reconsider command line arg style--confuses everyone.
 
-* Threads:
+* pintos script doesn't (always?) delete temp disks
+
+* Finish writing tour.
 
-  - join-invalid doesn't compile if tid_t is not scalar type.
 
-  - mlfqs tests suck.  They aren't even correct, e.g. the amarv
-    submission from win0405 is graded incorrectly.
 
-* Userprog project:
 
-  - Don't emphasize that stuff needs to be copied from user space to
-    kernel space.  Instead, emphasize validation and suggest that
-    copying is a common solution and that it will be necessary in
-    project 3 and in real OSes.  Also revise the grading criteria to
-    match.
 
-  - Move `join' implementation here, from `threads' project, to help
-    normalize the project difficulties.
+* process_death test needs improvement
 
-  - The semantics of the join system call should change so that it
-    only returns the exit code once.
+* Internal tests.
+
+* Improve automatic interpretation of exception messages.
+
+* Userprog project:
 
   - Mark read-only pages as actually read-only in the page table.  Or,
     since this was consistently rated as the easiest project by the
@@ -37,19 +32,13 @@
 
 * 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.
+  - Need a better way to measure performance improvement of buffer
+    cache.  Some students reported that their system was slower with
+    cache--likely, Bochs doesn't simulate a disk with a realistic
+    speed.
 
 * Documentation:
 
-  - Finish writing tour.
-
   - Add "Digging Deeper" sections that describe the nitty-gritty x86
     details for the benefit of those interested.
 
@@ -62,23 +51,10 @@
 
     . Low-level x86 stuff, like paged page tables.
 
-    . Other good ideas.
-
-  - mmap/munmap should use segment IDs like Nachos.  Too hard
-    otherwise.
-
-  - Add src/testcases/vm, src/testcases/filesys and make it clear to use
-    them?
+    . Specifics on how to implement sbrk, malloc.
 
-* Tests:
-
-  - Release some of them.
-
-  - The threads, userprog, vm test source files could use
-    factorization and cleanup along the lines of fslib in the filesys
-    tests.
+    . Other good ideas.
 
-  - The p1-4.c testcase needs significant tuning.  Currently it takes
-    too long (especially when SHOW_PROGRESS is turned on) and doesn't
-    show significant improvement.
+    . opendir/readdir/closedir
 
+    . everything needed for getcwd()