1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/trap.c b/kernel/trap.c
index 27cfd32..eb7f6cf 100644
--- a/kernel/trap.c
+++ b/kernel/trap.c
@@ -53,6 +53,9 @@ usertrap(void)
   if(r_scause() == 8){
     // system call
 
+    if(p->killed)
+      exit();
+
     // sepc points to the ecall instruction,
     // but we want to return to the next instruction.
     p->tf->epc += 4;