[BUG?] memory allocation profiling: the counters are not non-decreasing.

[David Wang]

Hi,
I was playing with this new feature of memory allocation profiling, when I plot the data, grouped by caller's source dir, 
I noticed that the counters are not non-decreasing.
If I understand this feature correctly, all counters should be non-decreasing, right?
Or is there some TTL for stale items?

Following is a simpler script demonstrating my sayings

	$ for i in {1..100}; do sudo cat /proc/allocinfo | grep " mm\/" | awk '{s+=$2}END{print s}'; sleep 10; done
	1194453
	1196935
	1198957
	1199716
	1200770
	1190795  <--- decrease here
	1192702
	1193070
	1193812
	1195069
	1196491
	...

FYI
David