Coldfire uClinux ram usage

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Hi guys

I have a question regarding uClinux 2.4.32 slab allocator.
I have a system (Coldfire 5208) with 16 mbytes of Ram and 8 Mbytes of
flash.
When the system starts, I have:
Memory available: 12800k/16383k RAM, 0k/0k ROM (896k kernel code, 275k
data) # free
        total:    used:    free:  shared: buffers:  cached:
Mem:  13139968  2695168 10444800        0   237568   249856

At this stage, if I do a cat /proc/slabinfo and I f I sum all the
buffers (all the buffers, not only the active ones), the total is about
2 Mbytes, that is not so far from the 2,6 Mbytes used given by "free".

Now if I run my application ( tcl interpreter), the sum of all the
buffers of /proc/slabinfo is about 6.5 Mbytes (!!) and free returns a
ram usage of 9.5 Mbytes.
=> I have lost 3 Mbytes.
Could someone tell me how to recover these Megabytes or where are they
located ?
Thanks a lot for your help.

Stan
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