We have had a very strange and unusual message today on our z/VM 5.4 system.
I had a report that our zLinux guests were not accessible (putty, ping, ssh all no good). I logged on to MAINT OK but soon after when I had issued a command I got the following messages. 10:29:47 * MSG FROM MAINT : DMSITM319T Machine check interrupt was encountered; MCIC = X'4002AFBD 400B0000 00000000 00000000' 10:29:47 * MSG FROM MAINT : DMSITM319T Disabled wait entered, please re-IPL CMS. HCPGIR450W CP entered; disabled wait PSW 000A0000 817C009E CMS would not IPL but I could IPL 190. When I tried to start the zLinux guests they initially failed with the messages above because they IPL CMS but when I IPLed 190 and ran the profile etc to start linux I saw HCPMCV1459E The virtual machine is placed in check-stop state due to a system malfunction with CPU 00. After a while we IPLed the VM system and all appears to be OK. Has anyone else seen such strange behaviour? Regards Bob
