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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 5/9/22 18:37, Xu, Min M wrote: > On May 10, 2022 1:30 AM, Tom Lendacky wrote: >> >> On 5/9/22 07:44, Xu, Min M wrote: >>> Gerd & Tom >>> What are your comments about this patch-set? >> >> Hi Min, >> >> This appears to resolve the issue. I was able to boot a 64 vCPU guest in >> legacy, SEV, SEV-ES and SEV-SNP modes without any asserts. >> >> I'm assuming that you were able to see the ASSERTs on your end and >> validate, too? >> > Yes. I enable a 4 vCPU legacy guest and can see the ASSERTs. But it appears in a random rate so it missed in the CI. Hmmm... I hadn't noticed it before, but I'm seeing the following message from the Linux kernel for each AP being brought online: APIC: Stale IRR: 00000000,00000000,00000000,00000000,00000000,00000000,00000001,00000000 ISR: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000 Let me investigate this further to see where this regression was introduced. Thanks, Tom > > Thanks > Min