It was a long time ago, but I think some versions of du used dev/ino to avoid counting the same file twice.<div><br><div class="gmail_quote">On 13 January 2012 17:02,  <span dir="ltr">&lt;<a href="mailto:tlaronde@polynum.com">tlaronde@polynum.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div id=":241">I never thought that perhaps, under Unices, du(1) with hard links will<br>
produce the same misleading result...</div></blockquote></div><br></div>