I've received an e-mail from a user worried that the following errors on one of his servers is indicative of a serious problem. The trouble is, the errors below are all that I have to go on. I usually consider myself a decent Googler, but in this case I can only find one other incident where the users encountered this error regarding "Probe Filter directory":
[1044 snapshots @ abc]$ Message from syslogd@abc at Sep 8 02:51:51 ... kernel:[Hardware Error]: CPU:0 MC4_STATUS[Over|CE|MiscV|-|AddrV|-|Poison|CECC]: 0xdc0248d0001f010b Message from syslogd@abc at Sep 8 02:51:51 ... kernel:[Hardware Error]: MC4_ADDR: 0x0000000000010f40 Message from syslogd@abc at Sep 8 02:51:51 ... kernel:[Hardware Error]: Northbridge Error (node 0): ECC Error in the Probe Filter directory. Message from syslogd@abc at Sep 8 02:51:51 ... kernel:[Hardware Error]: cache level: L3/GEN, tx: GEN, mem-tx: GEN
From what I can tell, this only happened once. Grepping around the logs for other hardware errors turns up nothing other than this one incident.
The forum post which I reference above simply ends with basically telling the user not to worry about it if it only happened once and didn't cause any fatal issues. This is the same advice I got from my colleagues, who also mentioned that there are too many variables (i.e. what was running at 2:50am on September 8th?).
However this user wants to be reassured that something isn't wrong with their system. What can the above errors indicate or be related to? What is the "Probe Filter directory?" What tests can I run to put the user at ease that this doesn't flag their machine for impending doom?
The Linux distribution of the machine is Red Hat Enterprise Linux Server release 6.4 (Santiago).