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