Now, what's this Red Alert about ? Here's a quote.
APAR VM64862 is in errorAll details about this Red Alert can be found in the following .pdf : 2011 z/VM Red Alert
APAR VM64862 has been found to be in error. Installing this APAR may result in ABENDHRM003. APAR VM64965 has been opened to correct the problem and is planned to be available by the end of April 2011.
Any customers running Linux on z/VM