more sbrk fixes

1 files changed, 4 insertions, 1 deletions

diff --git a/trap.c b/trap.c
index 39ff61d..47739ac 100644
--- a/trap.c
+++ b/trap.c
@@ -57,9 +57,12 @@ usertrap(void)
   } else {
     printf("usertrap(): unexpected scause 0x%x pid=%d\n", r_scause(), p->pid);
     printf("            sepc=%p stval=%p\n", r_sepc(), r_stval());
-    panic("usertrap");
+    p->killed = 1;
   }
 
+  if(p->killed)
+    exit();
+
   usertrapret();
 }