Alexander Farber wrote:
Hello,
every few hours I get the following message in /var/log/message:
Jul 5 20:23:28 hXXX kernel: Machine check events logged
<snip>
And in the /var/log/mcelog I see:
MCE 0 HARDWARE ERROR. This is *NOT* a software problem! Please contact your hardware vendor CPU 0 4 northbridge TSC 111a60c5584d4 [at 2500 Mhz 1 days 9:25:51 uptime (unreliable)] MISC c008000001000000 ADDR 1148f5940 Northbridge NB Array Error bit35 = err cpu3 bit42 = L3 subcache in error bit 0 bit43 = L3 subcache in error bit 1 bit46 = corrected ecc error bit59 = misc error valid memory/cache error 'generic read mem transaction, generic transaction, level generic' STATUS 9c1f4cf8001c011b MCGSTATUS 0 No DIMM found for 1148f5940 in SMBIOS
My machine (a CentOS 5.5/64bit server rented at German hoster strato.de) seems to run ok as a LAMP server though...
What do these messages actually mean, is RAM defect and how critical is it (because I have an important event this Friday and would prefer not to take the machine offline)
<snip> First, this is *very* bad - I'm not good enough on this to tell you if it's the CPU, or the motherboard, but it's one of the two, *not* just memory. Second, if you're paying for hosting, and it's *their* server, you need to get on the phone with them *now*, and tell them that they need to fix it, yesterday would be preferable. They *should* have seen the logs.
Dunno if you have a physical machine hosted there, or a VM' if the latter, they can move it without you seeing any downtime at all. If the former, they can just hot swap the drives into another server.
But call them *NOW*. You're paying for the service.
mark