[CentOS] Centos 6.7: kernel: EDAC MC0: CE row 2, channel 1, label "": (..... (Correctable Patrol Data ECC))

Dario Lesca d.lesca at solinos.it
Tue May 3 10:15:21 UTC 2016


After update from centos 6.6 to centos 6.7 and reboot it, I have get a
lot of this error into /var/log/messages:

> May  3 11:27:20 s-virt kernel: EDAC MC0: CE row 2, channel 1, label
> "": (Branch=0 DRAM-Bank=2 RDWR=Read RAS=6093 CAS=896, CE Err=0x10000
> (Correctable Patrol Data ECC))
> May  3 11:27:21 s-virt kernel: EDAC MC0: CE row 2, channel 1, label
> "": (Branch=0 DRAM-Bank=1 RDWR=Read RAS=1330 CAS=4, CE Err=0x2000
> (Correctable Non-Mirrored Demand Data ECC))
> May  3 11:27:22 s-virt kernel: EDAC MC0: CE row 2, channel 1, label
> "": (Branch=0 DRAM-Bank=2 RDWR=Read RAS=2673 CAS=4, CE Err=0x2000
> (Correctable Non-Mirrored Demand Data ECC))
> May  3 11:27:23 s-virt kernel: EDAC MC0: CE row 2, channel 1, label
> "": (Branch=0 DRAM-Bank=2 RDWR=Read RAS=1335 CAS=4, CE Err=0x2000
> (Correctable Non-Mirrored Demand Data ECC))
> May  3 11:27:24 s-virt kernel: EDAC MC0: CE row 2, channel 1, label
> "": (Branch=0 DRAM-Bank=2 RDWR=Read RAS=1335 CAS=4, CE Err=0x2000
> (Correctable Non-Mirrored Demand Data ECC))
> May  3 11:27:25 s-virt kernel: EDAC MC0: CE row 2, channel 1, label
> "": (Branch=0 DRAM-Bank=2 RDWR=Read RAS=240 CAS=4, CE Err=0x2000
> (Correctable Non-Mirrored Demand Data ECC))
> May  3 11:27:26 s-virt kernel: EDAC MC0: CE row 2, channel 1, label
> "": (Branch=0 DRAM-Bank=3 RDWR=Read RAS=1796 CAS=900, CE Err=0x10000
> (Correctable Patrol Data ECC))
> May  3 11:27:27 s-virt kernel: EDAC MC0: CE row 2, channel 1, label
> "": (Branch=0 DRAM-Bank=3 RDWR=Read RAS=1337 CAS=4, CE Err=0x2000
> (Correctable Non-Mirrored Demand Data ECC))
> May  3 11:27:28 s-virt kernel: EDAC MC0: CE row 2, channel 1, label
> "": (Branch=0 DRAM-Bank=3 RDWR=Read RAS=3094 CAS=900, CE Err=0x10000
> (Correctable Patrol Data ECC))
> May  3 11:27:29 s-virt kernel: EDAC MC0: CE row 2, channel 1, label
> "": (Branch=0 DRAM-Bank=3 RDWR=Read RAS=240 CAS=6, CE Err=0x2000
> (Correctable Non-Mirrored Demand Data ECC))
> May  3 11:27:30 s-virt kernel: EDAC MC0: CE row 2, channel 1, label
> "": (Branch=0 DRAM-Bank=3 RDWR=Read RAS=240 CAS=6, CE Err=0x2000
> (Correctable Non-Mirrored Demand Data ECC))

I have "yum install edac-utils -y" and I have get this output:

> [root at s-virt ~]# edac-util -v
> mc0: 0 Uncorrected Errors with no DIMM info
> mc0: 0 Corrected Errors with no DIMM info
> mc0: csrow0: 0 Uncorrected Errors
> mc0: csrow0: ch0: 0 Corrected Errors
> mc0: csrow0: ch1: 0 Corrected Errors
> mc0: csrow0: ch2: 0 Corrected Errors
> mc0: csrow0: ch3: 0 Corrected Errors
> mc0: csrow1: 0 Uncorrected Errors
> mc0: csrow1: ch0: 0 Corrected Errors
> mc0: csrow1: ch1: 0 Corrected Errors
> mc0: csrow1: ch2: 0 Corrected Errors
> mc0: csrow1: ch3: 0 Corrected Errors
> mc0: csrow2: 0 Uncorrected Errors
> mc0: csrow2: ch0: 0 Corrected Errors
> mc0: csrow2: ch1: 80384 Corrected Errors
> mc0: csrow2: ch2: 0 Corrected Errors
> mc0: csrow2: ch3: 0 Corrected Errors
> mc0: csrow3: 0 Uncorrected Errors
> mc0: csrow3: ch0: 0 Corrected Errors
> mc0: csrow3: ch1: 8 Corrected Errors
> mc0: csrow3: ch2: 0 Corrected Errors
> mc0: csrow3: ch3: 0 Corrected Errors

The server is a:

> [root at s-virt ~]# lshw
> s-virt.dom.it        
>     description: Tower Computer
>     product: ProLiant ML370 G5 (433752-421)
>     vendor: HP
>     serial: GBxxxxxxxM
>     width: 64 bits
>     capabilities: smbios-2.4 dmi-2.4 vsyscall64 vsyscall32
>     configuration: boot=hardware-failure-fw chassis=tower
> family=ProLiant sku=433752-421 uuid=34333337-3532-4742-3837-
> 35303557534D

with this RAM installed:
> [root at s-virt ~]# dmidecode -t memory|grep Size
>         Size: 1024 MB
>         Size: 2048 MB
>         Size: No Module Installed
>         Size: No Module Installed
>         Size: 1024 MB
>         Size: 2048 MB
>         Size: No Module Installed
>         Size: No Module Installed
>         Size: 1024 MB
>         Size: 4096 MB
>         Size: No Module Installed
>         Size: No Module Installed
>         Size: 1024 MB
>         Size: 4096 MB
>         Size: No Module Installed
>         Size: No Module Installed

I'm not a hardware guru and I do not know "decrypt" log and output
commands messages

What is the problem signaled into log?

What I must to do ?

Many thanks for your help.

-- 
Dario Lesca
(inviato dal mio Linux Fedora 23 Workstation)




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