Messages in this thread | | | Date | Tue, 18 Feb 2020 21:09:00 +0100 | From | Borislav Petkov <> | Subject | Re: [RFC] #MC mess |
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On Tue, Feb 18, 2020 at 09:02:00PM +0100, Peter Zijlstra wrote: > Then please rewrite the #MC entry code to deal with nested exceptions > unmasking the MCE, very similr to NMI. > > The moment you allow tracing, jump_labels or anything else you can > expect #PF, #BP and probably #DB while inside #MC, those will then IRET > and re-enable the #MC.
Yeah, I'd like to keep it simple and reenable all the crap we disabled only on exit from the handler.
Dunno if we care about losing tracing samples when an MCE happened...
> The current situation is completely and utterly buggered.
Lovely. ;-(
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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