Should we be using CONFIG_PREEMPT_BKL in the Fedora kernel?
Ingo Molnar
mingo at elte.hu
Wed Mar 21 19:43:18 UTC 2007
* Ingo Molnar <mingo at elte.hu> wrote:
> > I get the feeling that some of the bugs we are seeing is because we
> > have enabled CONFIG_PREEMPT_BKL. I remember looking at the code when
> > it came out and thinking it was too scary to enable, so I never did
> > in my own vanilla kernels.
>
> yes, we should keep it enabled - it's the default upstream and we
> havent had PREEMPT_BKL related bugs for a really long time.
>
> in fact i had more !PREEMPT_BKL bugs than PREEMPT_BKL bugs. (BKL
> spinlock recursion for example)
well, PREEMPT_BKL is not the default - my points remain nevertheless.
Ingo
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