X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=TODO;h=e16216c677937047d0555223aa9e435e8884a595;hb=a6707cab2ede5adc59479d16000cb938b386db36;hp=d4afd5c0ad8b2782c3403364270b50bdc385c903;hpb=12399ec5a71cb2fde72835f6abde1cef8e6057e6;p=pintos-anon diff --git a/TODO b/TODO index d4afd5c..e16216c 100644 --- a/TODO +++ b/TODO @@ -1,6 +1,24 @@ -*- text -*- -* The tests in tests/ don't apply the grading patches. +* Test pintos with GSX. + +* Need targets for checking single tests or single subdirs + + - `make check' should say how to get more information + + - `make recheck', `make clean-check' + +* Need to put time limits on tests. + +* Add a way for students to prints messages ignored by the autograder. + + - Ignore text between /* and */. + + - Allow for a comment on `exit' lines? + + . Get rid of LOAD_ERROR() macro by calling thread_exit() directly. + +* Improve automatic interpretation of exception messages. * We need better and more example programs. @@ -9,13 +27,8 @@ - How about `diff' and `cmp' programs? -* Make it clear that the students own their code, because there was some - confusion on that point. - * Threads: - - 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. @@ -27,12 +40,6 @@ 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. - - - The semantics of the join system call should change so that it - only returns the exit code once. - - Mark read-only pages as actually read-only in the page table. Or, since this was consistently rated as the easiest project by the students, require them to do it. @@ -48,10 +55,6 @@ - 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 @@ -61,14 +64,8 @@ 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. - - 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 @@ -86,6 +83,8 @@ - Add explanations of what "real" OSes do to give students some perspective. + - GNU make 3.80 or later is required. + * Assignments: - Add extra credit: @@ -100,13 +99,8 @@ . everything needed for getcwd() - - Add src/testcases/vm, src/testcases/filesys and make it clear to use - them? - * 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. @@ -117,9 +111,7 @@ * Code: - - Rewrite quick_sort() to use heap sort, for O(1) stack usage. - - - Rewrite list_sort() to use merge sort, for O(1) heap usage. + - Need an optimization barrier and an explanation of it in the + documentation. - - Make list_elem and hash_elem a struct, by encapsulating a struct - list_elem inside a struct hash_elem as a member. + - Need to check the wait system call more thoroughly.