Centos/RHEL 6.x vms running on Xen/Xenserver dont boot after installation of 2.6.32-696.18.7.el6
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This is the kernel update to fix the Spectre/Meltdown.
https://access.redhat.com/errata/RHSA-2018:0008edit: Only affects PV installations
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And the VMs can't boot once installed?
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Nope. Mine actually shut off.
Reverting to snapshot was only fix I had. Some people get booted into kernel panic and can edit grub to use old kernel, but not mine.
I only did this on two servers, then did some GoogleFu and found this RedHat thread.
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You might have to turn off pti.
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Our DC sent a warning about this. And they said it's not just VMs, could also happen to bare metal.
