VM gets reset to grub menu while booting when mce=off is set on kernel commandline.
Issue
- System is unable to boot if
mce=off
is passed to the kernel via command line. - VM gets reset at grub prompt and does not complete the boot process.
Environment
- Red Hat Enterprise Linux 7.6.
- kernel 3.10.0-957.el7.x86_64 & above.
- CPU model for guest VM is set to
Broadwell-noTSX-IBRS
orHaswell-noTSX-IBRS
or some other new models of CPU's.
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