Do not copy stack after stack overflow, fixes #8435

Signed-off-by: Edward Z. Yang <ezyang@mit.edu>

1 files changed, 1 insertions, 0 deletions

diff --git a/rts/Threads.c b/rts/Threads.c
index 1c4500084c..8ee8d4f09a 100644
--- a/rts/Threads.c
+++ b/rts/Threads.c
@@ -536,6 +536,7 @@ threadStackOverflow (Capability *cap, StgTSO *tso)
         } else {
             // Send this thread the StackOverflow exception
             throwToSingleThreaded(cap, tso, (StgClosure *)stackOverflow_closure);
+            return;
         }
     }