php5: Unserialize Large Objects with References

Hi there,

I've been using the unserialize and serialize methods in php5 on some
rather large objects it seems that the larger object get the following
errors:

Notice: `unserialize()`: Error at offset 6167 of 31195 bytes in
/root/doServerStates.php on line 37

Different smaller object:

Notice: `unserialize()`: Error at offset 6179 of 21955 bytes in
/root/doServerStates.php on line 37

The error offset is different based on the the size of the total file. I'm
trying to put together a test case to replicate the issue. I wanted to
see if anyone has already identified this issue before taking the time to
do the test case.

Thanks,
David