Re: question about /proc/kcore

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Thank you both for your responses.  I still have not figured this out,
but I appreciate your replies.  I wasn't sure if this list was still
around, but I thought I would try to liven it up with a question ;-)

All the best,

-Jamie



On Sat, Aug 2, 2008 at 5:58 PM, Gayathri Swaminathan
<gayathri.swa@xxxxxxxxx> wrote:
> Think Jamie is right.
>
> I have observed behaviour were this file grows based on accessed memory
> (would this be kernel shared mem params?)
>
> But it is definitely not just size of physical RAM+4KB on a machine.
>
> gayathri
>
> On Sat, Aug 2, 2008 at 3:54 PM, Astarta <astarta@xxxxxx> wrote:
>>
>> Jamie Levy wrote:
>>>
>>> Hello,
>>>
>>> I know this list has been rather quiet for a while...  so I might as
>>> well ask a question :-)
>>
>> Hello,
>>
>> I really thought that this list is completely dead :-)
>>
>>>
>>> This does not seem to be the case, however, when I do a listing in
>>> /proc/kcore on my machine (F8) which has 2 GB of memory:
>>>
>>> ls -lh /proc/kcore
>>> -r-------- 1 root root 897M 2008-08-01 19:05 /proc/kcore
>>>
>>> I have confirmed the same type of results on other machines to which I
>>> have access.  I also do not seem to have the kcore.h file on my system
>>> (and I have kernel-devel installed), since it is a zero byte file:
>>>
>>> -rw-r--r-- 1 root root 0 2008-07-21 02:05
>>> /usr/src/kernels/2.6.25.11-60.fc8-i686/include/config/proc/kcore.h
>>>
>>
>>
>> As far as I know, the size of kcore is equal not to the size of _all_
>> physical memory installed on the machine, but just to the amount of memory
>> accessible by kernel.
>> Your kernel seems to be compiled with HIGHMEM support, and if you do `ls
>> -l /proc/kcore` you see your LOWMEM size, the real memory that the kernel
>> uses. That the reason why the difference you mentioned comes.
>>
>> Someone will correct me, if I'm wrong :)
>>
>>>
>>> All the best,
>>>
>>> -Jamie Levy
>>>
>>> _______________________________________________
>>> Fedora-women-list mailing list
>>> Fedora-women-list@xxxxxxxxxx
>>> https://www.redhat.com/mailman/listinfo/fedora-women-list
>>
>>
>> --
>> with best regards,
>> Fadeeva Marina.
>>
>> _______________________________________________
>> Fedora-women-list mailing list
>> Fedora-women-list@xxxxxxxxxx
>> https://www.redhat.com/mailman/listinfo/fedora-women-list
>
>
>
> --
> Gayathri Swaminathan
> gpgkey: 3EFB3D39
> Volunteer, FDP
>



-- 
==============================
 Jamie Levy
 Computer Science Dept
 Queens College
 http://venus.cs.qc.edu/~jlevy
==============================

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