<div dir="ltr">If it makes you feel better, I heard today that Microsoft's patch has been bricking the occasional AMD CPU..<div><br></div></div><br><div class="gmail_quote"><div dir="ltr">On Tue, 9 Jan 2018 at 19:19 doug moen <<a href="mailto:doug@moens.org">doug@moens.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">According to what I read, the performance impact occurs if you are hammering the kernel with a lot of system calls. Eg, a server that is performing a lot of I/o.<br><br>On Tuesday, 9 January 2018, Khalid Baheyeldin <<a href="mailto:kb@2bits.com" target="_blank">kb@2bits.com</a>> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>I just received the email for the meltdown patch for Ubuntu Linux.<br><br>CVE-2017-5754<br><br>There are two concerns:<br><br></div>1. Performance impact.<br><br></div>2. This comment in the email:<br><br><div><div>"ATTENTION: Due to an unavoidable ABI change the kernel updates have<br>
been given a new version number, which requires you to recompile and<br>
reinstall all third party kernel modules you might have installed.<br>
Unless you manually uninstalled the standard kernel metapackages<br>
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,<br>
linux-powerpc), a standard system upgrade will automatically perform<br>
this as well."<br><br></div><div>Anyone updated to this fix yet?<br></div><div>Any noticeable negative impact on performance?<br><br>-- <br><div>Khalid M. Baheyeldin<br><a href="http://2bits.com" target="_blank">2bits.com</a>, Inc.<br>Fast Reliable Drupal<br>Drupal optimization, development, customization and consulting.<br>Simplicity is prerequisite for reliability. -- Edsger W.Dijkstra<br>Simplicity is the ultimate sophistication. -- Leonardo da Vinci<br>For every complex problem, there is an answer that is clear, simple, and wrong." -- H.L. Mencken<br></div>
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