Those of you who attended our z/VM 5.2.0 Early Experiences presentation at SHARE know that Marist had some serious problems that forced us to back out our upgrade. An APAR has been opened on the problem, VM63968. Not long after SHARE, another customer also had a similar problem, so it is not isolated to Marist.
This past weekend, we tested a fix for the problem and I'm glad to say that it appears to work. We were able to run for 6 hours without the problem reoccuring. (The problem involves a serious deadlock situation that can bring all of CP to its knees.) We are planning to bring 5.2.0 up for a longer period of time during Easter break. Martha
