Re: sys_sched_yield keeps locked irq before call of schedule()
From: Arnd Bergmann
Date: Wed Nov 05 2008 - 09:05:32 EST
On Wednesday 05 November 2008, Zdenek Kabelac wrote:
> > is this some special warning you added? The stock kernel certainly
> > does not emit this warning.
>
> Yes - it's my personal debug checker that tries to watch wether irq &
> irqsafe are running in pair.
> So it shows a warning if there is a call of spin_lock_irq and irq is
> already dissabled.
I've done such a checker before as well, but back then it showed
far too many false positives. If you have a working version, can you
post your patch here? I think that would be very useful in the kernel.
Arnd <><
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