Update Question 5.1:
- Put non-breakable spaces between quantities and units Approved by: gabor (mentor)
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2020-12-08 03:00:23 +00:00
svn path=/head/; revision=32234
1 changed files with 5 additions and 5 deletions
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@ -2829,26 +2829,26 @@ bindkey ^[[3~ delete-char # for xterm</programlisting>
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and virtual addresses.</para>
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<para>The convention for most PC hardware is to use the memory area
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between 3.5G and 4G for a special purpose (usually for PCI). This
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between 3.5 GB and 4 GB for a special purpose (usually for PCI). This
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address space is used to access PCI hardware. As a result real,
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physical memory can not appear in that address space.</para>
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<para>What happens to the memory that should appear in that location
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is dependent on your hardware. Unfortunately, some hardware does
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nothing and the ability to use that last 500M of RAM is entirely
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nothing and the ability to use that last 500 MB of RAM is entirely
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lost.</para>
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<para>Luckily, most hardware remaps the memory to a higher location
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so that it can still be used. However, this can cause some
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confusion if you watch the boot messages.</para>
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<para>On a 32 bit version of &os;, the memory appears lost, since it
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will be remapped above 4G, which a 32 bit kernel is unable to
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<para>On a 32 bit version of &os;, the memory appears lost, since it
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will be remapped above 4 GB, which a 32 bit kernel is unable to
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access. In this case, the solution is to build a PAE enabled
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kernel. See <link linkend="memory-limits">this FAQ entry</link>
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for more information.</para>
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<para>On a 64 bit version of &os;, or when running a PAE-enabled
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<para>On a 64 bit version of &os;, or when running a PAE-enabled
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kernel, &os; will correctly detect and remap the memory so it is
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usable. During boot, however, it may seem as if &os; is detecting
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more memory than the system really has. This is normal and the
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