X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=TODO;h=726b11801f8e53185edc813ce1cd37d7bbf95d10;hb=0450759c86862c1aae5fb8416630b1eb89302046;hp=8aaf1377022dc3b4aa5ee251768ee8723ef40585;hpb=2e4d5e42ff339d8a792fa648622e2903644d47c6;p=pintos-anon diff --git a/TODO b/TODO index 8aaf137..726b118 100644 --- a/TODO +++ b/TODO @@ -1,27 +1,24 @@ -*- text -*- -* The tests in tests/ don't apply the grading patches. +* 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. -* 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. -* 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. +* process_death test needs improvement - - Move `join' implementation here, from `threads' project, to help - normalize the project difficulties. +* Internal tests. - - The semantics of the join system call should change so that it - only returns the exit code once. +* 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 @@ -33,9 +30,14 @@ Alternately we could just remove the synchronization on pid selection and check that students fix it. -* Documentation: +* Filesys project: - - Finish writing tour. + - 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: - Add "Digging Deeper" sections that describe the nitty-gritty x86 details for the benefit of those interested. @@ -49,23 +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()