Re: Test ECC memory
Anssi Saari wrote:
> Dan Ritter <dsr@randomstring.org> writes:
>
> > We see ECC errors irregularly and infrequently on both Intel and
> > AMD CPUs.
>
> How/where do you see those on a Debian system? I looked into this
> briefly but didn't get anywhere.
The kernel announces readiness during boot with:
dmesg:[ 18.331561] EDAC amd64: Node 0: DRAM ECC enabled.
and then an event looks like this:
Message from syslogd@HOSTNAME at Jan 25 15:05:51 ...
kernel:[5964975.397283] [Hardware Error]: Corrected error, no
action required.
Message from syslogd@HOSTNAME at Jan 25 15:05:51 ...
kernel:[5964975.406226] [Hardware Error]: CPU:0 (15:2:0)
MC4_STATUS[-|CE|MiscV|-|AddrV|-|-|CECC]: 0x9c04400040080a13
Message from syslogd@HOSTNAME at Jan 25 15:05:51 ...
kernel:[5964975.418574] [Hardware Error]: Error Addr:
0x0000001ed405ef50
Message from syslogd@HOSTNAME at Jan 25 15:05:51 ...
kernel:[5964975.426919] [Hardware Error]: MC4 Error (node 0):
DRAM ECC error detected on the NB.
Message from syslogd@HOSTNAME at Jan 25 15:05:51 ...
kernel:[5964975.437370] [Hardware Error]: cache level: L3/GEN,
mem/io: MEM, mem-tx: RD, part-proc: RES (no timeout)
If you see a bunch of these, you want to install edac-utils and
run it to see if you have a bad DIMM.
-dsr-
Reply to: