[Bug 218684] CPU soft lockups in KVM VMs on kernel 6.x after switching hypervisor from C8S to C9S

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Sean Christopherson (seanjc@xxxxxxxxxx) changed:

           What    |Removed                     |Added
                 CC|                            |seanjc@xxxxxxxxxx

--- Comment #3 from Sean Christopherson (seanjc@xxxxxxxxxx) ---
Given that 6.7 is still broken, my money is on commit d02c357e5bfa ("KVM:
x86/mmu: Retry fault before acquiring mmu_lock if mapping is changing").  Ugh,
which I neglected to mark for stable.

Note, if that's indeed what's to blame, there's also a bug in the kernel's
preemption model logic that is contributing to the problems.

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