Messages in this thread | | | Date | Tue, 12 Oct 2021 16:37:28 +0000 | From | Sean Christopherson <> | Subject | Re: [syzbot] WARNING in static_key_slow_try_dec (2) |
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On Tue, Oct 12, 2021, Sean Christopherson wrote: > On Sun, Oct 10, 2021, Tetsuo Handa wrote: > > Hello. > > > > Commit 4547700a4d190ac4 ("KVM: x86: Consolidate APIC base RESET initialization code") > > That's definitely where the error was made visible,
I take that back, the bug was likely visible even before the redundant vendor code was dropped. Doesn't change the fix in any way though.
> but commit 421221234ada ("KVM: x86: Open code necessary bits of > kvm_lapic_set_base() at vCPU RESET") is the real culprit. I'll send a patch > later today. I'm leaning toward a partial revert with some extra comments. > > Thanks for the debug! I was having trouble reproducing the syzbot report.
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