Re: [RFC] Arch option to touch newly allocated pages

Benjamin LaHaise (bcrl@redhat.com)
Mon, 4 Mar 2002 23:28:06 -0500


On Mon, Mar 04, 2002 at 11:15:56PM -0500, Jeff Dike wrote:
> So, does this make things at all clearer? Without the patch I get random
> UML deaths when tmpfs can't back a page. With it, tmpfs is forced to back
> newly allocated pages when they're allocated, and the allocation returns NULL
> if it can't. The result being I get no UML deaths and fairly reasonable
> behavior.

startup of UML where the ram is allocated -> a uml booted with 64MB of
ram would write into every page of the backing store file before even
running the kernel. Doesn't that accomplish the same thing?

-ben
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