X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=rts%2FSparks.h;h=fd62c1288d35ddb833a656f50a262e4d476d38f6;hp=f24ccca4ff20e2ca1cb722974de098fd724df667;hb=65914a2cb71caf01655b16a75b283871e2482041;hpb=58852522d1ba4fb647bf2e0a67745a808a7da0c6

diff --git a/rts/Sparks.h b/rts/Sparks.h
index f24ccca..fd62c12 100644
--- a/rts/Sparks.h
+++ b/rts/Sparks.h
@@ -52,7 +52,12 @@ typedef struct  SparkPool_ {
 
 
 /* INVARIANTS, in this order: reasonable size,
-   topBound consistent, space pointer, space accessible to us */
+   topBound consistent, space pointer, space accessible to us.
+   
+   NB. This is safe to use only (a) on a spark pool owned by the
+   current thread, or (b) when there's only one thread running, or no
+   stealing going on (e.g. during GC).
+*/
 #define ASSERT_SPARK_POOL_INVARIANTS(p)         \
   ASSERT((p)->size > 0);                        \
   ASSERT((p)->topBound <= (p)->top);            \