<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Title" content="">
<meta name="Keywords" content="">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:0 0 0 0 0 0 0 0 0 0;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:Calibri;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:Calibri;
color:windowtext;}
span.msoIns
{mso-style-type:export-only;
mso-style-name:"";
text-decoration:underline;
color:teal;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:Calibri;}
@page WordSection1
{size:595.0pt 842.0pt;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style>
</head>
<body bgcolor="white" lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-GB">Hello again,</span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">I’m now running LXD 2.0.0 on Ubuntu 16.04 LTS after having some amount of success with a previous BETA on 14.04.</span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">However, after a fresh install, the first attempt at a live migration has failed;</span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-GB">lxc launch ubuntu:xenial host2:migrate<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span lang="EN-GB">lxc move migrate host3:<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-GB">error: Error transferring container data: restore failed:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.499626) 1: Error (mount.c:2406): mnt: Can't mount at ./sys/kernel/debug: Invalid argument<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.515123) Error (cr-restore.c:1350): 8965 exited, status=1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.573498) Error (cr-restore.c:2182): Restoring FAILED.</span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-GB">The end of the migration log on host3;<o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="EN-GB">(00.499574) 1: mnt: 129:./sys/fs/cgroup/net_cls,net_prio private 1 shared 0 slave 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.499588) 1: mnt: Mounting securityfs @./sys/kernel/security (0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.499593) 1: mnt: Bind /sys/kernel/security/ to ./sys/kernel/security<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.499603) 1: mnt: 276:./sys/kernel/security private 0 shared 0 slave 1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.499610) 1: mnt: Mounting debugfs @./sys/kernel/debug (0)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.499615) 1: mnt: Bind /sys/kernel/debug/ to ./sys/kernel/debug<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.499626) 1: Error (mount.c:2406): mnt: Can't mount at ./sys/kernel/debug: Invalid argument<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.515123) Error (cr-restore.c:1350): 8965 exited, status=1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.555143) Switching to new ns to clean ghosts<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.572964) uns: calling exit_usernsd (-1, 1)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.573065) uns: daemon calls 0x4523c0 (8960, -1, 1)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.573108) uns: `- daemon exits w/ 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.573458) uns: daemon stopped<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">(00.573498) Error (cr-restore.c:2182): Restoring FAILED.</span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Both hosts have criu installed and are running the same kernel version (4.4.0-22-generic). The CPU and hardware profile is absolutely identical.</span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Both hosts are using ZFS file storage.</span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Stop and copy between hosts works without issue. The criu dump also completes successfully, so the issue appears to be with criu restore.</span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Any ideas?</span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Thanks,</span></p>
<p class="MsoNormal"><span lang="EN-GB"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB">Jamie<o:p></o:p></span></p>
</div>
</body>
</html>