Messages in this thread | | | Date | Sun, 18 Nov 2007 14:46:20 -0800 | From | Linda Walsh <> | Subject | Config Q?: Preempt Model & Preempt Big Kern Lock |
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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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