<html>
  <head>
    <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
  </head>
  <body bgcolor="#FFFFFF" text="#000000">
    <div class="moz-cite-prefix">On 12/02/2015 05:57 PM, Burton, Ross
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAJTo0Lag5J+cytX8C+Z7b8dmX65MZWJBV6JXQt=Ocwy==szenA@mail.gmail.com"
      type="cite">
      <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
      <div dir="ltr">
        <div class="gmail_extra"><br>
          <div class="gmail_quote">On 2 December 2015 at 09:51, Hongxu
            Jia <span dir="ltr">&lt;<a moz-do-not-send="true"
                href="mailto:hongxu.jia@windriver.com" target="_blank">hongxu.jia@windriver.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 bgcolor="#FFFFFF" text="#000000">The root cause is
                the qemu didn't support gcc optimization level 3 very
                well.<br>
              </div>
            </blockquote>
          </div>
          <br>
          Oh, so the problem only appears in qemu if you enable tuning
          that is known to be broken in qemu?  </div>
      </div>
    </blockquote>
    <br>
    Yes, since I tested qemux86/qemux86-64 with default tune, and
    everything is ok.<br>
    <br>
    <blockquote
cite="mid:CAJTo0Lag5J+cytX8C+Z7b8dmX65MZWJBV6JXQt=Ocwy==szenA@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div class="gmail_extra">I don't think we should apply the
          Python workaround to oe-core as everyone will suffer for a
          configuration that is known to be broken (and isn't enabled in
          oe-core).</div>
      </div>
    </blockquote>
    <br>
    Trace the issue costs a lot of time,  the original failure was
    invoking<br>
    'smart update' in qemu, and found out the python md5/sha checksum<br>
    output incorrect, and then found out qemu86-64 with corei7-64 did<br>
    not support gcc optimization level 3 '-O3' very well
    <meta http-equiv="content-type" content="text/html; charset=utf-8">
    [YOCTO #8748]<br>
    <br>
    BTW, boot the same image with virtualbox, everything is ok<br>
    <br>
    //Hongxu<br>
    <br>
    <blockquote
cite="mid:CAJTo0Lag5J+cytX8C+Z7b8dmX65MZWJBV6JXQt=Ocwy==szenA@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div class="gmail_extra"><br>
        </div>
        <div class="gmail_extra">Ross</div>
      </div>
    </blockquote>
    <br>
  </body>
</html>