Memory leak in 2.6.11.10/2.6.12-rc4?

I am using 2.6.11.10 (and have also tried the same with 2.6.12-rc4). I have a Dell Poweredge 850, with 2 GB RAM. I am trying a simple test like:

#!/bin/sh
cd /var/tmp
while true;
do
   find /usr -name "*" | xargs strings > /var/tmp/spin.txt
done


And after sometime (less than 20 mins)I do see that the free command returns:



#free
            total       used       free     shared    buffers     cached
Mem:       2075060    1872904     202156          0      27696     453404
-/+ buffers/cache:    1391804     683256
Swap:      2097136          0    2097136
#

And after 15 mins:

#free
            total       used       free     shared    buffers     cached
Mem:       2075060    2002064      72996          0      11840     393372
-/+ buffers/cache:    1596852     478208
Swap:      2097136          0    2097136
#

(The only patch applied to the kernel is aacraid 2391).

After having stopped the program the free returns this:

# free
            total       used       free     shared    buffers     cached
Mem:       2075060    1951632     123428          0      15988     330064
-/+ buffers/cache:    1605580     469480
Swap:      2097136          0    2097136


Can someone please help me on this?

Thanks in advance,

Ashish
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