[GLLUG] How worried should I be ...

[Chris Bell]

On Friday, 22 May 2020 16:37:57 BST Alain D D Williams via GLLUG wrote:
> The message below was put to all login sessions this morning. I have never
> seen this before. There is nothing more in /var/log/messages.
> 
> The machine is 8 years old, always switched on, AMD 8150 Eight-Core
> Processor.
> 
> Should I take this as a warning and look to replace the machine or just
> shrug my shoulders & mutter something about cosmic rays ?
> 
> TIA
> 
> 
> Message from syslogd at mint at May 22 07:27:09 ...
>  kernel:[Hardware Error]: MC4 Error (node 0): L3 data cache ECC error.
> 
> Message from syslogd at mint at May 22 07:27:09 ...
>  kernel:[Hardware Error]: Error Status: Corrected error, no action required.
> 
> Message from syslogd at mint at May 22 07:27:09 ...
>  kernel:[Hardware Error]: CPU:0 (15:1:2)
> MC4_STATUS[-|CE|MiscV|-|AddrV|-|Poison|CECC]: 0x9d5c4881011c011b
> 
> Message from syslogd at mint at May 22 07:27:09 ...
>  kernel:[Hardware Error]: MC4_ADDR: 0x000000076f75be90
> 
> Message from syslogd at mint at May 22 07:27:09 ...
>  kernel:[Hardware Error]: cache level: L3/GEN, tx: GEN, mem-tx: RD

Several years ago there was an on-line demonstration of an SGI Purple computer 
which used terabytes of non-ECC RAM because of the price, and simply marked 
faulty sections as not available until they could be bothered to shut down and 
swap it.

-- 
Chris Bell
Website http://chrisbell.org.uk