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On Fri, Jul 3, 2015 at 8:47 PM, Alexander Kapshuk < |
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alexander.kapshuk@×××××.com> wrote: |
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|
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> I've put in two 2G memory modules running 32-bit kernel with 'free' |
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> showing: |
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> |
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> free -h |
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> total used free shared buffers cached |
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> Mem: 3.5G 885M 2.6G 9.1M 67M 345M |
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> -/+ buffers/cache: 471M 3.0G |
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> Swap: 511M 0B 511M |
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> |
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> CPUINFO |
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> sed '/model name/!d;/model name/q' /proc/cpuinfo |
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> model name : Intel(R) Core(TM)2 Duo CPU E4600 @ 2.40GHz |
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> |
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> With HIGHMEM kernel config on: |
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> |
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> grep '^[^#].*HIGH.*MEM' /usr/src/linux/.config |
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> CONFIG_HIGHMEM4G=y |
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> CONFIG_HIGHMEM=y |
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> |
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> grep '^[^#].*3G' /usr/src/linux/.config |
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> CONFIG_VMSPLIT_3G=y |
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> |
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> Does this claim still hold true today? |
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> http://osdir.com/ml/kernel.ck/2005-02/msg00081.html |
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> |
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> Or perhaps it is I who did not fit the memory modules properly? |
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> |
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> Thanks. |
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> |
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> |
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Did some more googling on this. |
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|
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Stumbled upon this thread, |
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http://www.gossamer-threads.com/lists/linux/kernel/778495. |
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|
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Enabled PAE support in the kernel: |
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CONFIG_HIGHMEM64G=y |
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|
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Recompiled the kernel. And voila! |
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|
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grep MemTotal /proc/meminfo |
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MemTotal: 4144484 kB |
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|
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free -h |
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total used free shared buffers cached |
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Mem: 4.0G 828M 3.1G 9.0M 64M 307M |
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-/+ buffers/cache: 455M 3.5G |
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Swap: 511M 0B 511M |
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