On Wed, Nov 20, 2019 at 02:04:38PM -0500, Derek Yerger wrote: > > > Debug patch attached. Hopefully it finds something, it took me an > > embarassing number of attempts to get correct, I kept screwing up checking > > a bit number versus checking a bit mask... > > <0001-thread_info-Add-a-debug-hook-to-detect-FPU-changes-w.patch> > > Should this still be tested despite Wanpeng Li’s comments that the issue may > have been fixed in a 5.3 release candidate? Yes. The actual bug fix, commit e751732486eb3 (KVM: X86: Fix fpu state crash in kvm guest), is present in v5.2.7. Unless there's a subtlety I'm missing, commit d9a710e5fc4941 (KVM: X86: Dynamically allocate user_fpu) is purely an optimization and should not have a functional impact.
