On Mon, 2021-12-20 at 12:54 -0600, Tom Lendacky wrote: > Took the tree back to commit df9726cb7178 and then applied this change. > I'm unable to trigger any kind of failure with this change. Hm... I fired up an EC2 m6a.48xlarge instance (192 CPUs) to play with. I can reproduce your triple-fault on SMP bringup, but only with kexec. And I basically can't get *anything* to kexec without that triple- fault. Not a clean 5.16-rc2, not the Fedora stock 5.14.10 kernel. If I *boot* instead of kexec, I have not yet seen the problem at all. This is using Legacy BIOS not UEFI.
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