Messages in this thread | | | Date | Tue, 24 Jun 2014 10:12:50 +0900 | From | Gioh Kim <> | Subject | [RFC] CMA page migration failure due to buffers on bh_lru |
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Hello,
I am trying to apply CMA feature for my platform. My kernel version, 3.10.x, is not allocating memory from CMA area so that I applied a Joonsoo Kim's patch (https://lkml.org/lkml/2014/5/28/64). Now my platform can use CMA area effectively.
But I have many failures to allocate memory from CMA area. I found the same situation to Laura Abbott's patch descrbing, https://lkml.org/lkml/2012/8/31/313, that releases buffer-heads attached at CPU's LRU list.
If Joonsoo's patch is applied and/or CMA feature is applied more and more, buffer-heads problem is going to be serious definitely.
Please look into the Laura's patch again. I think it must be applied with Joonsoo's patch.
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