If the buffer is very large (larger than the value of
@code{line-number-display-limit}), then the line number doesn't appear.
Emacs doesn't compute the line number when the buffer is large, because
-that would be too slow. If you have narrowed the buffer
-(@pxref{Narrowing}), the displayed line number is relative to the
-accessible portion of the buffer.
+that would be too slow. Set it to @code{nil} to remove the limit. If
+you have narrowed the buffer (@pxref{Narrowing}), the displayed line
+number is relative to the accessible portion of the buffer.
@cindex Column Number mode
@cindex mode, Column Number