X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FRaiseAsync.c;h=c8a38565afcd9aa9af2c506cbc695803562e63f7;hb=21146fa414558ee31b08b14792feed71778bccdf;hp=5a6f8c98c08954e68af46808e5698a3b1a9834f9;hpb=f6013eedb4dea47afac8167dfa08561ae90454db;p=ghc-hetmet.git

diff --git a/rts/RaiseAsync.c b/rts/RaiseAsync.c
index 5a6f8c9..c8a3856 100644
--- a/rts/RaiseAsync.c
+++ b/rts/RaiseAsync.c
@@ -150,6 +150,8 @@ throwTo (Capability *cap,	// the Capability we hold
 {
     StgWord status;
 
+    ASSERT(target != END_TSO_QUEUE);
+
     // follow ThreadRelocated links in the target first
     while (target->what_next == ThreadRelocated) {
 	target = target->_link;
@@ -169,6 +171,8 @@ retry:
     debugTrace(DEBUG_sched, "throwTo: retrying...");
 
 check_target:
+    ASSERT(target != END_TSO_QUEUE);
+
     // Thread already dead?
     if (target->what_next == ThreadComplete 
 	|| target->what_next == ThreadKilled) {