Messages in this thread | | | From | Ohad Ben-Cohen <> | Date | Fri, 27 Jan 2012 11:44:05 +0200 | Subject | Re: [Linaro-mm-sig] [PATCH 12/15] drivers: add Contiguous Memory Allocator |
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Hi Marek,
With v19, I can't seem to allocate big regions anymore (e.g. 101MiB). In particular, this seems to fail:
On Thu, Jan 26, 2012 at 11:00 AM, Marek Szyprowski <m.szyprowski@samsung.com> wrote: > +static int cma_activate_area(unsigned long base_pfn, unsigned long count) > +{ > + unsigned long pfn = base_pfn; > + unsigned i = count >> pageblock_order; > + struct zone *zone; > + > + WARN_ON_ONCE(!pfn_valid(pfn)); > + zone = page_zone(pfn_to_page(pfn)); > + > + do { > + unsigned j; > + base_pfn = pfn; > + for (j = pageblock_nr_pages; j; --j, pfn++) { > + WARN_ON_ONCE(!pfn_valid(pfn)); > + if (page_zone(pfn_to_page(pfn)) != zone) > + return -EINVAL;
The above WARN_ON_ONCE is triggered, and then the conditional is asserted (page_zone() retuns a "Movable" zone, whereas zone is "Normal") and the function fails.
This happens to me on OMAP4 with your 3.3-rc1-cma-v19 branch (and a bunch of remoteproc/rpmsg patches).
Do big allocations work for you ?
Thanks, Ohad. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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