[Bug 207489] Kernel panic due to Lazy update IOAPIC EOI on an x86_64 *host*, when two (or more) PCI devices from different IOMMU groups are passed to Windows 10 guest, upon guest boot into Windows, with more than 4 VCPUs

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https://bugzilla.kernel.org/show_bug.cgi?id=207489

LimeTech (tomm@xxxxxxxxxxxxxxxxxxx) changed:

           What    |Removed                     |Added
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                 CC|                            |tomm@xxxxxxxxxxxxxxxxxxx

--- Comment #15 from LimeTech (tomm@xxxxxxxxxxxxxxxxxxx) ---
Kernel 5.6.12

Win10 VM with 8 cores assigned and with a USB controller passed through. 
Trying to add a 2nd pass through device in a different IOMMU group produces
this error.

Confirmed, applying patch fixes the issue.

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