Messages in this thread | | | Date | Thu, 11 Dec 2008 18:47:53 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH][v2] fork_init: fix division by zero |
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On Fri, 12 Dec 2008 12:31:33 +1000 Nick Piggin <nickpiggin@yahoo.com.au> wrote:
> On Friday 12 December 2008 07:43, Andrew Morton wrote: > > On Thu, 11 Dec 2008 20:28:00 +0000 > > > > Do they actually cross the page boundaries? > > > > Some flavours of slab have at times done an order-1 allocation for > > objects which would fit into an order-0 page (etc) if it looks like > > that will be beneficial from a packing POV. I'm unsure whether that > > still happens - I tried to get it stamped out for reliability reasons. > > Hmph, SLUB uses order-3 allocations for 832 byte sized objects > by default here (mm struct).
That sucks, but at least it's <= PAGE_ALLOC_COSTLY_ORDER.
It's fortunate that everyone has more than 128GB of memory.
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