The 6.0 kernel is working well, so far there has been only one expedited RCU CPU stall and that was on a virtual host during boot-up on a machine that has quite a few guests.  These can occur at this time just because ALL of the guests are busy with start-up and it simply exceeds available CPU cycles for a short time during boot-up.  If it continues to run this clean until this Friday then we’ll upgrade the physical servers to this kernel on that date at 11PM.