[Devel] Re: [PATCH 3/3] Quick vmalloc vs kmalloc fix to the case where array size is too large

[Paul Menage]

On Tue, Jul 14, 2009 at 10:47 AM, Dave Hansen<dave at linux.vnet.ibm.com> wrote:
>
> How big were those allocations that were failing?  The code made it
> appear that order-2 (PAGE_SIZE*4) allocations were failing.  That's a
> bit lower than I'd expect the page allocator to start failing.

I think it depends on how much fragmentation you've got.

We've seen it fail for cpusets with (I guess) hundreds or thousands of threads.

Paul
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