Messages in this thread | | | Date | Sat, 21 Feb 2015 20:23:52 +0100 | From | Ingo Molnar <> | Subject | Re: [RFC PATCH] x86, fpu: Use eagerfpu by default on all CPUs |
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* Borislav Petkov <bp@alien8.de> wrote:
> > I'd sleep a lot better if we had some runtime debug > > flag to be able to do run-to-run comparisons on the > > same booted up kernel, or so. > > Let me take a look whether we could so some knob... The > nice thing is, code uses use_eager_fpu() to check stuff > so we should be able to clear the cpufeature flag.
Either that, or you could quickly hack those checks to use panic_timeout, add an 'extern int panic_timeout;' and after bootup do:
echo 0 > /proc/sys/kernel/panic echo 1 > /proc/sys/kernel/panic
to switch between the modes?
Thanks,
Ingo
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