<div dir="ltr"><div>Hi</div><div><br></div><div>I think you need to recompile your kernel with <span class="gmail-pl-c">CONFIG_MEM_SOFT_DIRTY=y option. You can change this option on .config file inside kernel tree directory.<br></span></div><div><span class="gmail-pl-c"><br></span></div><div><span class="gmail-pl-c">Regards, Alex<br></span></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Nov 17, 2019 at 9:57 AM <a href="mailto:zhenghexin@live.com">zhenghexin@live.com</a> <<a href="mailto:zhenghexin@live.com">zhenghexin@live.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p class="MsoNormal"><span lang="EN-US">Hi</span></p>
<p class="MsoNormal"><span lang="EN-US"> I’m using CentOS7.7 with kernel version 5.3.11-1.el7.elrepo.x86_64.</span></p>
<p class="MsoNormal"><span lang="EN-US"> When I run command </span></p>
<p class="MsoNormal" style="text-indent:36pt"><span class="gmail-m_9145976438409133660MsoIntenseEmphasis"><b><span style="color:black;font-style:normal" lang="EN-US">criu check --all<u></u><u></u></span></b></span></p>
<p class="MsoNormal" style="text-indent:36pt"><span lang="EN-US">I got a result typing
</span></p>
<p class="MsoNormal" style="text-indent:36pt"><b><span lang="EN-US">Warn (criu/cr-check.c:850): Dirty tracking is OFF. Memory snapshot will not work.<u></u><u></u></span></b></p>
<p class="MsoNormal" style="text-indent:36pt"><span lang="EN-US">This may not be fatal,but I need this feature in my work.So is there any way to solve this problem or turn on dirty tracking?</span></p>
<p class="MsoNormal" style="text-indent:36pt"><span lang="EN-US">Thanks.</span></p>
<p class="MsoNormal" style="text-indent:36pt"><b><span style="font-size:12pt" lang="EN-US"><u></u> <u></u></span></b></p>
<p class="MsoNormal"><span lang="EN-US"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:SimSun" lang="EN-US"><u></u> <u></u></span></p>
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