Messages in this thread | | | Date | Fri, 6 Mar 2015 10:27:38 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH v6] x86: mce: kexec: switch MCE handler for kexec/kdump |
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On Fri, Mar 06, 2015 at 09:09:30AM +0000, Naoya Horiguchi wrote: > I'm not sure why that works, could you elabroate it?
Because the _safe() variants are only for handling reads to possibly non-existent MSRs. The _STATUS MSRs which you're accessing are guaranteed to be present, otherwise __mcheck_cpu_cap_init() would've disabled MCA on the first kernel, thus the mca_cfg.disabled check.
We can always switch to the _safe() variants later if really needed - I just don't see the need for them right now.
-- Regards/Gruss, Boris.
ECO tip #101: Trim your mails when you reply. --
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