> On Wed, 21 Feb 2001, Tigran Aivazian wrote:
>
> >
> > when you compile your 2.4.x kernel make sure you set the "4G of RAM"
> > option, i.e. CONFIG_HIGHMEM4G. If you chose "up to 1G" then
> it means "up
> > to 986M" (or something like that) -- the number in Help is
> just rounded up
> ~~~
>
> not 986M but (unsigned
> long)(-PAGE_OFFSET-VMALLOC_RESERVE)>>20 MB which is
> around 876M or so.
>
I also have a question about RAM. I am running 2.4.2pre4 on Dell Poweredge
6400 with 6.4GB of RAM (12x512MB + 4x64MB). With 4GB support free reports
3597324 total, and with 64GB support it reports about ~5.9GB. I also have
another problem, when using 64GB large_mem support, the system will
sometimes oops (I haven't captured one yet) or completely hang when I run
out of physical memory. Swap does not even get touched (8GB swap, 4 x 2GB,
why can I only use 2GB swap partitions?)
/proc/meminfo
total: used: free: shared: buffers: cached:
Mem: 3683659776 510230528 3173429248 0 1044480 458235904
Swap: 4144005120 169009152 3974995968
MemTotal: 3597324 kB
MemFree: 3099052 kB
MemShared: 0 kB
Buffers: 1020 kB
Cached: 447496 kB
Active: 3324 kB
Inact_dirty: 170156 kB
Inact_clean: 275036 kB
Inact_target: 4 kB
HighTotal: 2752504 kB
HighFree: 2351772 kB
LowTotal: 844820 kB
LowFree: 747280 kB
SwapTotal: 8241184 kB
SwapFree: 8076136 kB
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