T3-1 : pio-read ereport occurred [CXG-59302]

Hi,

T3-1 system rebooted suddenly. I checked ILOM snapshot.

And I found the following event. I'd like to know a meaning with

the following event.

- fmdump -ev
2013-12-02/03:00:46  ereport.cpu.generic-sparc.pio-read@/host  proxied

- vbsc log
Dec  2 03:00:46 NOTICE:  errq_pri_thread: Priority SER drained (rprt_type:1
                         err_type:8  tod:1ec63d30940b36
                         err_stick:1c12e96a1f7f)

I think SER occurred when T3 CPU accesed IO device via pio-read.

Is my understanding right?

Does SER mean PCI-bus SERR?

And I'd like to know a master device and a target device.

Could you please advice if you possible. I know that created SR is best way.