<div dir="ltr"><p style="line-height:1.38;margin-top:0pt;margin-bottom:0pt;text-align:left"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">While creating a VM instance in openstack (created using devstack), , I have got an issue  “this system does not support SSSE3”. The cpu_mode in both /etc/nova/nova.conf and nova-cpu.conf was "none" so I tried changing it to use "host-model" or "host-passthrough". It didn't work on both the cases. I still get the same SSSE3 not supported error.</span></p><div style="text-align:left"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">I did grep in "/proc/cpuinfo", and found the ssse3 entry. <br></span></div><div style="text-align:left"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap"><br></span></div><div style="text-align:left"><span style="font-size:11pt;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline;white-space:pre-wrap">Then I tried changing LIBVIRT_CPU_MODE to host-passthrough of "devstack/lib/nova" file and ran unstack.sh and stack.sh. The issue still persists. Please suggest how to resolve this issue?</span></div><div style="text-align:left"><br clear="all"><br>-- <br></div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature" style="text-align:center"><div dir="ltr"><div><div dir="ltr"><div style="text-align:left">Name:- Subhajit Chatterjee<br>DEPT.:- Computer Science and Engineering</div><div><div style="text-align:left">IIT Delhi<br>Email:- <a href="mailto:babu89jucse@gmail.com" target="_blank">babu89jucse@gmail.com</a><br>Phone number:- +91 9958555224<br></div><br></div></div></div></div></div></div>