Improve 'forkProcess' documentation wrt haskell#62

hasufell · Jul 17, 2022 · b75c609 · b75c609
1 parent 1cb1352
commit b75c609
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/System/Posix/Process/Common.hsc b/System/Posix/Process/Common.hsc
@@ -449,6 +449,10 @@ The exception masking state of the executed action is inherited
 threads are not copied into the child process, it's easy to go wrong:
 e.g. by accessing some shared resource that was held by another thread
 in the parent.
+
+GHC note: 'forkProcess' is not currently very well supported when using multiple
+processors (@+RTS -N@), although it is supported with @-threaded@ as
+long as only one processor is being used.
 -}
 
 #if !defined(HAVE_GETPID)