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Freeing unused kernel memory

Occasional Contributor

Freeing unused kernel memory

I install a Redhat Enterprise Linux ia64 on
HP server Bl870c.
The phisical Ram memory are 16 Go byte
But after the installation linux read also 4 Go.
And I get this error en dmesg :"check_crashkernel_memory: pbase = 100000000
crashkernel: There would be kdump memory at 4 GB but this is unusable because it must
be below 4 GB. Change the memory configuration of of the machine.
Freeing initrd memory: 5984kB freed
Total HugeTLB memory allocated, 0
Freeing unused kernel memory: 464kB freed"

How to change the configuration of the memory?
Honored Contributor

Re: Freeing unused kernel memory

You should install another kernel:

With RHEL3 or RHEL4 and i386 architecture:
* standard kernel supports 4 GB of physical memory
* SMP kernel supports 16 GB of physical memory
* hugemem kernel supports 64 GB of physical memory

Por que hacerlo dificil si es posible hacerlo facil? - Why do it the hard way, when you can do it the easy way?