Not big deal, just some config-validity questions regarding
i386 preemption models and preemption of the big-kern lock.
I.e. the relevant options are:
(PM) "Preemption model", there are 3 choices (i386):
(none) No Forced Preemption (Server)
(vol) Voluntary Preempt (Desktop)
(full) Preemptible Kernel (Low-Latency Desktop)
(PBL) "Preempt The Big Kernel Lock" (hint: use Y for desktop, else N)
===
Are these all "valid" config states? Should they all be valid?
I.e., does it make sense to allow "PM==none && PBL==T" ?
Does it makes sense to allow "(PM==full) && PBL==F" ?
Is the issue of big-kernel-lock preemption of major consequence
these days, or should it work in all cases? Are there cases
where one might want PBL==F? Would they be limited to the
"PM=none" case?
Is this the right place or way to ask such questions, or to
get information?
In asking a similar information question, it seems that it
was preferred that a bug be filed. Is that the case here?
Thanks,
Lin
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