diff --git a/repos/dde_linux/src/lib/lx_emul/shadow/mm/slab_common.c b/repos/dde_linux/src/lib/lx_emul/shadow/mm/slab_common.c
index 693f1aec82..722ccd90a5 100644
--- a/repos/dde_linux/src/lib/lx_emul/shadow/mm/slab_common.c
+++ b/repos/dde_linux/src/lib/lx_emul/shadow/mm/slab_common.c
@@ -25,9 +25,19 @@ void * krealloc(const void * p,size_t new_size,gfp_t flags)
 	if (!new_size) {
 		kfree(p);
 		return NULL;
-	}
 
-	lx_emul_trace_and_stop(__func__);
+	} else {
+
+		unsigned long const old_size = ksize(p);
+		void *ret;
+
+		if (new_size <= old_size)
+			return p;
+
+		ret = kmalloc(new_size, flags);
+		memcpy(ret, p, old_size);
+		return ret;
+	}
 }