> i believe the reason for gfp-NULL failures is the following:
> do_try_to_free_pages() _does_ free pages, but we do the sync in the
> writeback case _after_ releasing a particular page. This means other
> processes can steal our freshly freed pages - rmqueue fails easily. So i'd
> suggest the following workaround:
>
> if (try_to_free_pages() was succesful && final rmqueue() failed)
> goto repeat;
this seems to have done the trick here - no more NULL gfps. Any better
generic suggestion than the explicit 'page transport' path between freeing
and allocation points?
Ingo
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