understanding /proc/sys/vm/pagetable_cache
 

I am fairly new to the internals of the Linux kernel and am trying to understand how to interpret the values in
/proc/sys/vm/pagetable_cache
In some tests that i have been doing, i noticed that the value of the pagetable cache as dumped by doing a memory dump shows
kernel: 0 pages in page table cache
Around the same time my Java application aborts with an error "Fatal: Stack size too small. " - indicating that the JVM is unable to get more virtual memory.
What are the implications of the pagetable cache value being 0? Is this a configurable parameter and could the crashing of the JVM have something to do with this pagetable cache size.

Thanks

This /proc/sys/vm/pagetable_cache is one of the virtual memory parameters among /proc/sys/vm/*
its not advisable to alter except
$echo "0 0" > /proc/sys/vm/pagetable_cache