Messages in this thread Patch in this message | | | Date | Tue, 28 Jan 2014 12:17:35 -0800 | Subject | Re: [PATCH 1/3] memblock, nobootmem: Add memblock_virt_alloc_low() | From | Yinghai Lu <> |
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On Tue, Jan 28, 2014 at 11:55 AM, Yinghai Lu <yinghai@kernel.org> wrote:
> but looks like memblock_virt_alloc_low is not the same as alloc_bootmem_low yet. >
The memblock_virt_alloc missed limit checking.
Please check attached patch.
Thanks
Yinghai Subject: [PATCH] memblock: Add limit checking to memblock_virt_alloc
In original bootmem wrapper for memblock, we have limit checking.
Add it to memblock_virt_alloc, to address arm and x86 booting crash.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
--- mm/memblock.c | 3 +++ 1 file changed, 3 insertions(+)
Index: linux-2.6/mm/memblock.c =================================================================== --- linux-2.6.orig/mm/memblock.c +++ linux-2.6/mm/memblock.c @@ -1077,6 +1077,9 @@ static void * __init memblock_virt_alloc if (!align) align = SMP_CACHE_BYTES; + if (max_addr > memblock.current_limit) + max_addr = memblock.current_limit; + again: alloc = memblock_find_in_range_node(size, align, min_addr, max_addr, nid); | |