In order to support ZFS, we upgraded a backups server with a new, ECC
motherboard. We're running CentOS 6 with ZFS on Linux, recently patched.
Now, I want to enable EDAC so we can check for memory errors (and maybe
PCI errors as well) but so far, repeatedly pounding on the Google hasn't
yielded exactly what I need to do to enable EDAC.
One howto was covering PCI and edac, but "modprobe edac_mc" didn't work.
Here's some information below, How do I get edac up and running? Many
howtos cover how to use edac-ctl and edac-util, but none seem to cover
how to determine what module to load into the kernel.
[root@hume ~]# modprobe edac_mc
FATAL: Module edac_mc not found.
[root@hume ~]# lsmod | grep edac
[root@hume ~]# cat /proc/version
Linux version 2.6.32-431.11.2.el6.x86_64
(mockbuild@xxxxxxxxxxxxxxxxxxxxxxxx) (gcc version 4.4.7 20120313 (Red
Hat 4.4.7-4) (GCC) ) #1 SMP Tue Mar 25 19:59:55 UTC 2014
[root@hume ~]# modprobe edac_mce
FATAL: Module edac_mce not found.
[root@hume ~]# edac-ctl --mainboard
edac-ctl: mainboard: Supermicro X9SCL/X9SCM
[root@hume ~]# edac-ctl --status
edac-ctl: drivers not loaded.
[root@hume ~]# lsmod
Module Size Used by
ext3 240013 1
jbd 80858 1 ext3
nfsd 309196 13
lockd 73662 1 nfsd
nfs_acl 2647 1 nfsd
auth_rpcgss 44949 1 nfsd
sunrpc 262864 20 nfsd,lockd,nfs_acl,auth_rpcgss
exportfs 4236 1 nfsd
bnx2fc 90539 0
fcoe 23298 0
libfcoe 56791 2 bnx2fc,fcoe
8021q 25349 0
garp 7152 1 8021q
stp 2218 1 garp
libfc 108670 3 bnx2fc,fcoe,libfcoe
llc 5546 2 garp,stp
scsi_transport_fc 55299 3 bnx2fc,fcoe,libfc
scsi_tgt 12077 1 scsi_transport_fc
ipt_REJECT 2351 2
nf_conntrack_ipv4 9506 15
nf_defrag_ipv4 1483 1 nf_conntrack_ipv4
iptable_filter 2793 1
ip_tables 17831 1 iptable_filter
ip6t_REJECT 4628 2
nf_conntrack_ipv6 8337 2
nf_defrag_ipv6 11156 1 nf_conntrack_ipv6
xt_state 1492 17
nf_conntrack 79758 3 nf_conntrack_ipv4,nf_conntrack_ipv6,xt_state
ip6table_filter 2889 1
ip6_tables 18732 1 ip6table_filter
iTCO_wdt 7115 0
iTCO_vendor_support 3056 1 iTCO_wdt
zfs 1152935 53
zcommon 44698 1 zfs
znvpair 80460 2 zfs,zcommon
zavl 6925 1 zfs
zunicode 323159 1 zfs
spl 260832 5 zfs,zcommon,znvpair,zavl,zunicode
zlib_deflate 21629 1 spl
i2c_i801 11359 0
i2c_core 31084 1 i2c_i801
ses 6475 0
enclosure 8438 1 ses
sg 29350 0
lpc_ich 12803 0
mfd_core 1895 1 lpc_ich
shpchp 32778 0
ext4 374902 3
jbd2 93427 1 ext4
mbcache 8193 2 ext3,ext4
raid1 32045 2
usb_storage 49068 5
sd_mod 39069 27
crc_t10dif 1541 1 sd_mod
ata_generic 3837 0
pata_acpi 3701 0
pata_jmicron 2813 2
video 20674 0
output 2409 1 video
e1000e 267701 0
ptp 9614 1 e1000e
pps_core 11458 1 ptp
ahci 42247 8
xhci_hcd 148886 0
dm_mirror 14384 0
dm_region_hash 12085 1 dm_mirror
dm_log 9930 2 dm_mirror,dm_region_hash
dm_mod 84209 2 dm_mirror,dm_log
be2iscsi 99578 0
bnx2i 48096 0
cnic 57079 2 bnx2fc,bnx2i
uio 10462 1 cnic
ipv6 317829 56
ip6t_REJECT,nf_conntrack_ipv6,nf_defrag_ipv6,cnic
cxgb4i 28361 0
cxgb4 104882 1 cxgb4i
cxgb3i 24491 0
libcxgbi 52202 2 cxgb4i,cxgb3i
cxgb3 152922 1 cxgb3i
mdio 4769 1 cxgb3
libiscsi_tcp 17020 3 cxgb4i,cxgb3i,libcxgbi
qla4xxx 257114 0
iscsi_boot_sysfs 9458 2 be2iscsi,qla4xxx
libiscsi 49836 7
be2iscsi,bnx2i,cxgb4i,cxgb3i,libcxgbi,libiscsi_tcp,qla4xxx
scsi_transport_iscsi 84241 5 be2iscsi,bnx2i,libcxgbi,qla4xxx,libiscsi
[root@hume ~]# rpm -qi edac-utils
Name : edac-utils Relocations: (not relocatable)
Version : 0.9 Vendor: CentOS
Release : 14.el6 Build Date: Wed 20 Jul 2011
11:13:34 AM UTC
Install Date: Wed 25 Jun 2014 09:27:40 PM UTC Build Host:
c6b6.bsys.dev.centos.org
Group : System Environment/Base Source RPM:
edac-utils-0.9-14.el6.src.rpm
Size : 78637 License: GPLv2+
Signature : RSA/SHA1, Mon 26 Sep 2011 04:17:58 AM UTC, Key ID
0946fca2c105b9de
Packager : CentOS BuildSystem <http://bugs.centos.org>
URL : http://sourceforge.net/projects/edac-utils/
Summary : Userspace helper for kernel EDAC drivers
Description :
EDAC is the current set of drivers in the Linux kernel that handle
detection of ECC errors from memory controllers for most chipsets
on i386 and x86_64 architectures. This userspace component consists
of an init script which makes sure EDAC drivers and DIMM labels
are loaded at system startup, as well as a library and utility
for reporting current error counts from the EDAC sysfs files.
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