1 files changed, 6 insertions, 0 deletions
diff --git a/cpu-exec.c b/cpu-exec.c
index 4879c7d..e9b50a6 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -211,15 +211,21 @@ static void cpu_exec_nocache(CPUState *cpu, int max_cycles,
     if (max_cycles > CF_COUNT_MASK)
         max_cycles = CF_COUNT_MASK;
 
+    tb_lock();
     tb = tb_gen_code(cpu, orig_tb->pc, orig_tb->cs_base, orig_tb->flags,
                      max_cycles | CF_NOCACHE
                          | (ignore_icount ? CF_IGNORE_ICOUNT : 0));
     tb->orig_tb = orig_tb;
+    tb_unlock();
+
     /* execute the generated code */
     trace_exec_tb_nocache(tb, tb->pc);
     cpu_tb_exec(cpu, tb);
+
+    tb_lock();
     tb_phys_invalidate(tb, -1);
     tb_free(tb);
+    tb_unlock();
 }
 #endif