Messages in this thread | | | Subject | Re: [PATCH v5 13/19] x86/cpufeatures: Add flag to track whether MSR IA32_FEAT_CTL is configured | From | Jacob Keller <> | Date | Tue, 25 Feb 2020 14:52:32 -0800 |
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On 2/25/2020 2:12 PM, Sean Christopherson wrote: > On Tue, Feb 25, 2020 at 01:49:13PM -0800, Jacob Keller wrote: >> Hi Sean, >> >> I suspect something is wrong and the features are enabled even though >> the BIOS has it disabled, leading to later failure because of this. > > Hrm. On the failing kernel, what are the values of MSR 0x3a for all CPUs, > i.e. what's the output of 'sudo rdmsr -a 0x3a'? >
On the old (fedora 30) kernel, every cpu reports as '1'.
I can't easily test the failing kernel because it crashes during boot.
Thanks, Jake
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