Debian etch and memory issues with a PE 2950

[Giorgio Quattrone]

If you have to stay on a 32bit kernel, you have to install kernel with 
64GB  RAM support

    #     aptitude install linux-modules-2.6.18-6-686-bigmem

Regards,
Giorgio

Jeremy Cole wrote:
> Hi Pau,
>
> You need to use a 64-bit (x86_64) version of Debian.  With the 32-bit 
> version you won't be able to get the system to use more memory, as it 
> needs some of that address space to map various system components into 
> memory.  (And there's only 4GB of address space on a 32-bit system.)
>
> Regards,
>
> Jeremy
>
> Pau Montero Parés wrote:
>   
>> Hello!
>>
>> I have a PE2950 working with a Debian Etch with kernel 2.6.18-6-686.  
>> The server has 4GB RAM but kernel only reports this:
>>
>> # dmesg | grep kernel
>> Memory: 3371012k/3407520k available (1541k kernel code, 35256k  
>> reserved, 580k data, 196k init, 2490016k highmem)
>> Freeing unused kernel memory: 196k freed
>>
>> I tried to bypass the RAM detection using the grub parameter  
>> "mem=4000M" without luck.
>>
>> Several days ago and before doing a security kernel update, the  
>> servers said that:
>>
>> # dmesg | grep -n kernel
>> 11:Use a PAE enabled kernel.
>> 80:Memory: 3364876k/4194304k available (1541k kernel code, 41388k
>> reserved, 576k data, 196k init, 2490016k highmem)
>> 428:Freeing unused kernel memory: 196k freed
>> 641:BUG: warning at kernel/cpu.c:51/unlock_cpu_hotplug()
>> 646:BUG: warning at kernel/cpu.c:51/unlock_cpu_hotplug()
>>
>> Any ideas about how can I solve this problem and use the whole RAM?  
>> Thanks a lot.
>>
>>     
>
>   


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