> The code is broken anyways. If you free pages without flushing
quoted text
> them first some other innocent user allocating them will end up
> with possible uncached pages for some time.
>
> Does this simple patch help?
>

I've attached a more complicated patch that does a 2 stage effort to
unmapping and freeing pages. My kernel no longer hangs with this
patch...

Jiri can you confirm?

I'll look at the other issue separately..

Dave.