On 12/20/21 3:29 PM, David Woodhouse wrote:
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.
Let me try with a legacy BIOS and see if I can repro. Might not be until
tomorrow, though, since I had to let someone borrow the machine.
Thanks,
Tom
