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I finally managed to install xen-hypervisor-amd64 on an Ubuntu 15.04 Server and I rebooted fine, but after a few minutes after a restart, the console starts outputting these messages soft lockup - CPU# 0 stuck for 22s! and rcu_sched self-detected stall on CPU { 0} (t= ...) with t increasing slowly with each new message.

I read somewhere on this forum to make a change in virtmanager: 'change virtio to SATA'

Does this apply for Xen as well ? How can I change this ?

oneindelijk
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1 Answers1

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This trick solved the soft lockup problem for me:

apt-get install intel-microcode microcode.ctl

From here

oneindelijk
  • 159