diff --git a/src/net/torvald/tsvm/UnsafePtr.kt b/src/net/torvald/tsvm/UnsafePtr.kt
index f898f8f..d00f690 100644
--- a/src/net/torvald/tsvm/UnsafePtr.kt
+++ b/src/net/torvald/tsvm/UnsafePtr.kt
@@ -83,12 +83,11 @@ internal class UnsafePtr(pointer: Long, allocSize: Long) {
     }
 
     private inline fun checkNullPtr(index: Long) { // ignore what IDEA says and do inline this
-        // commenting out because of the suspected (or minor?) performance impact.
-        // You may break the glass and use this tool when some fucking incomprehensible bugs ("vittujen vitun bugit")
-        // appear (e.g. getting garbage values when it fucking shouldn't)
-        assert(!destroyed) { throw NullPointerException("The pointer is already destroyed ($this)") }
+        //// commenting out because of the suspected (or minor?) performance impact.
+        //// You may break the glass and use this tool when some fucking incomprehensible bugs ("vittujen vitun bugit")
+        //// appear (e.g. getting garbage values when it fucking shouldn't)
 
-        // OOB Check: debugging purposes only -- comment out for the production
+        //assert(!destroyed) { throw NullPointerException("The pointer is already destroyed ($this)") }
         //if (index !in 0 until size) throw IndexOutOfBoundsException("Index: $index; alloc size: $size")
     }
 
diff --git a/src/net/torvald/tsvm/peripheral/GraphicsAdapter.kt b/src/net/torvald/tsvm/peripheral/GraphicsAdapter.kt
index bdee26c..6ffc3a0 100644
--- a/src/net/torvald/tsvm/peripheral/GraphicsAdapter.kt
+++ b/src/net/torvald/tsvm/peripheral/GraphicsAdapter.kt
@@ -31,6 +31,9 @@ data class AdapterConfig(
     val paletteShader: String = DRAW_SHADER_FRAG
 )
 
+/**
+ * NOTE: if TTY size is greater than 80*32, SEGFAULT will occur because text buffer is fixed in size
+ */
 open class GraphicsAdapter(val vm: VM, val config: AdapterConfig) :
     GlassTty(config.textRows, config.textCols), PeriBase {