Xen kernel problem

Hi

Please help me decipher this

kernel: [26696.534978] MCE_DOM0_LOG: enter dom0 mce vIRQ handler
kernel: [26696.534987] MCE_DOM0_LOG: No more urgent data
kernel: [26696.535001] [CPU4, BANK0, addr 24c6a7ff0, state 8c20c000bf080a13]
kernel: [26696.535005] MCE_DOM0_LOG: No more nonurgent data
kernel: [26771.535010] MCE_DOM0_LOG: enter dom0 mce vIRQ handler
kernel: [26771.535017] MCE_DOM0_LOG: No more urgent data
kernel: [26771.535026] [CPU4, BANK0, addr 24c6a4ff0, state 8c414001d5080813]

Kernel info
Linux xen 2.6.34.7-0.5-xen #1 SMP 2010-10-25 08:40:12 +0200 x86_64 x86_64 x86_64 GNU/Linux