X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=TODO;h=726b11801f8e53185edc813ce1cd37d7bbf95d10;hb=a640f749cb8760c6d00f89bad33e56ef5dce1e8b;hp=31606d182661ee33ae3ceefb616355d5f7daac19;hpb=bc0cc9ec385f55e8dee745f55e25d98908255636;p=pintos-anon diff --git a/TODO b/TODO index 31606d1..726b118 100644 --- a/TODO +++ b/TODO @@ -1,18 +1,24 @@ -*- text -*- -* Miscellaneous: +* Get rid of rox--causes more trouble than it's worth + +* Reconsider command line arg style--confuses everyone. + +* pintos script doesn't (always?) delete temp disks + +* Finish writing tour. + - - Currently the `pintos' utility has a broken return code policy: it - returns 1 to indicate success. It inherited this mistake from - Bochs, which does something similar. This needs to be fixed. -* Userprog project: - - 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. +* process_death test needs improvement + +* 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 @@ -24,9 +30,14 @@ Alternately we could just remove the synchronization on pid selection and check that students fix it. -* Documentation: +* Filesys project: + + - 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. - - Finish writing tour. +* Documentation: - Add "Digging Deeper" sections that describe the nitty-gritty x86 details for the benefit of those interested. @@ -40,23 +51,10 @@ . Low-level x86 stuff, like paged page tables. - . Other good ideas. - - - mmap/munmap should use segment IDs like Nachos. Too hard - otherwise. + . Specifics on how to implement sbrk, malloc. - - 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. + . 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()