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PODoes Linux x86 64 have both 2M and 4K page together?
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2012-07-19T02:35:58.570
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2012-07-19T02:44:25.727
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text
Body
My kernel is <pre><code>Linux localhost.localdomain 2.6.30 #5 SMP Tue Aug 10 00:56:36 CST 2010 x86_64 x86_64 x86_64 GNU/Linux </code></pre> My kernel module find a 2M page while nr_hugepages is disabled. <pre><code> [root@localhost ~]# cat /proc/sys/vm/nr_hugepages 0 [root@localhost ~]# cat /proc/meminfo ... Hugepagesize: 2048 kB DirectMap4k: 9856 kB DirectMap2M: 2052096 kB </code></pre> I wonder whether linux64 kernel can have both 2M and 4K page together? And what's the condition?
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<linux><kernel>
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Does Linux x86 64 have both 2M and 4K page together?
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