On Tue, 21 Aug 2007, Rik van Riel wrote:
> > What is preventing that from occurring right now? If the dirty pags are
> > aligned in the right way you can have the exact same situation.
>
> For one, dirty page writeout is done even when free memory
> is low. The kernel will dig into the PF_MEMALLOC reserves,
> instead of deciding not to do writeout unless there is lots
> of free memory.
Right that is a fundamental problem with this RFC. We need to be able to
get into PF_MEMALLOC reserves for writeout.
> Secondly, why would you want to recreate this worst case on
> purpose every time the pageout code runs?
I did not intend that to occur.
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