Re: [PLUG] What is /proc/kcore

[LeRoy Cressy <ldc@lrcressy.com>]

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Everything in /proc is in memory.  /proc is not taking up any disk 
space.  If you do a du on /proc you will find:

sudo du -hs /proc
0       /proc

/proc/kcore is the kernel core memory.  Notice only root can read it for 
security reasons.

- -r--------    1 root     root         512M 2003-08-12 09:58 /proc/kcore

If you want to see what is going on in your system do a cat on some of 
the files in /proc.

cat /proc/cpuinfo

reveals:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 5
model name      : Pentium II (Deschutes)
stepping        : 2
cpu MHz         : 400.915
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge 
mca cmov pat pse36 mmx fxsr
bogomips        : 799.53



Sijian Zhou wrote:
> I find I have a 200M+ /proc/kcore file in my RedHat
> 7.3. What is it? It is read-only and I can't change
> it's mod and delete it. How to reduce it's size?
>
> Thanks
> SJ
>
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