Re: start_kernel(): bug: interrupts were enabled early

[Matthew Wilcox]

On Wed, Mar 31, 2010 at 01:47:23PM -0700, Yinghai Lu wrote:
> >> > This appears to be caused by:
> >> > 
> >> >   start_kernel -> radix_tree_init -> kmem_cache_create (slub) ->
> >> >    down_write -> __down_write (lib/rwsem-spinlock.c) -> spin_unlock_irq
> >> > 
> > That's going to be hard to fix.
> > 
> spin_unlock_irq from arm is different from other archs?

Not all arches use lib/rwsem-spinlock.c.  In particular, x86 doesn't
when X86_XADD is set.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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