X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=doc%2Fthreads.texi;h=33600393977ff6b6f743f4124875eb00be91acd6;hb=60cba7a21c87442984f87f97597173e2b6357ac0;hp=bc2ccb548de6c278b0085b4bf08a098d3dcca4b5;hpb=ecd12507c871ad36c8f26d705d73ca367b5373ac;p=pintos-anon

diff --git a/doc/threads.texi b/doc/threads.texi
index bc2ccb5..3360039 100644
--- a/doc/threads.texi
+++ b/doc/threads.texi
@@ -487,7 +487,10 @@ exited at the time of the later joins.  Thus, joins on T after the
 first should return immediately.
 
 Calling @func{thread_join} on an thread that is not the caller's
-child should cause the caller to return immediately.
+child should cause the caller to return immediately.  For this purpose,
+children are not inherited, that is, if @var{A} has child @var{B} and
+@var{B} has child @var{C}, then @var{A} always returns immediately
+should it try to join @var{C}, even if @var{B} is dead.
 
 Consider all the ways a join can occur: nested joins (@var{A} joins
 @var{B}, then @var{B} joins @var{C}), multiple joins (@var{A} joins
@@ -495,15 +498,10 @@ Consider all the ways a join can occur: nested joins (@var{A} joins
 if @func{thread_join} is called on a thread that has not yet been
 scheduled for the first time?  You should handle all of these cases.
 Write test code that demonstrates the cases your join works for.
-Don't overdo the output volume, please!
 
 Be careful to program this function correctly.  You will need its
 functionality for project 2.
 
-Once you've implemented @func{thread_join}, define
-@code{THREAD_JOIN_IMPLEMENTED} in @file{constants.h}.
-@xref{Conditional Compilation}, for more information.
-
 @node Problem 1-3 Priority Scheduling
 @section Problem 1-3: Priority Scheduling
 
@@ -732,7 +730,9 @@ Make the timer tick more slowly by decreasing @code{TIMER_FREQ} in
 
 The former two changes are only desirable for testing problem 1-1 and
 possibly 1-3.  You should revert them before working on other parts
-of the project or turn in the project.
+of the project or turn in the project.  We will test problem 1-1 with
+@code{TIME_SLICE} set to 100 and @code{TIMER_FREQ} set to 19, but we
+will leave them at their defaults for all the other problems.
 
 @item
 @b{Should @file{p1-1.c} be expected to work with the MLFQS turned on?}