session load bugs?

Howdy again folks, Last week I posted some interesting load testing problems I found with session, and basically discovered that under a load session variables seem to be instable, and basically doesn't work. I was wondering if anyone was looking in to this? I was able to reproduce this regularly using http_load. All you need is a very simple script that just registers 1 variable and increments it each time the script is called. Then have http_load hit that script 50,000 times. One would expect the session variable to be equal to 50,000 when the test is over, but it doesn't. I was able to discover this with a load testing tool I wrote myself, but reproduced this with http_load. This seems like a pretty simple, but major problem with sessions that will prevent me from using it, since I can't reply on the stability of session variables. I am more then willing to try and help debug/fix this problem with some help. Other then this bug, I think php4 is very solid for my uses at this point. Thanx for the awesome product. Walt