Re: kernel BUG at drivers/md/raid5.c:693!

[Peter Zijlstra]

On Mon, Nov 25, 2013 at 10:35:22AM +1100, NeilBrown wrote:
> Ingo/Peter: is it considered OK to call wake_up while holding a spinlock?

Yes, very much so. Doing a wakeup isn't _that_ expensive.

> Could "sleeping spinlocks" affect this at all? (some sample stack traces are
> below).

Not entirely sure, are you referencing to -rt where me make spinlock_t
pi-mutexes?
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