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[Xen-users] CMCI exceptions happened and MCE entry state transition made Xen crashed.
Three days ago, the server reported lots of CMCI exceptions and Xen 3.4.2 printed hundreds of "CMCI: send CMCI to DOM0 through virq" messages to the console . From the console output, Then I can see that Dom0 try to read the MSR_CAP regs by #GP trap in order to log the MCA error.
I am not sure why so many CMCI happened , maybe there were some thing wrong with the hardware. But unfortunately the server crashed at the end. The Xen BUG ON at
-> MCTE_TRANSITION_STATE(tep, COMMITTED, PROCESSING)
-> BUG_ON(MCTE_STATE(tep) != (MCTE_F_STATE_##old));
The output of the console is like this:
(XEN) Xen bug on at mctelem.c : Line 437
Why the state of the entry is not correct ? Some one change that unexpected? If any body even resolve this kind problems, Pls do me a favor.
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