Intel C2518 FH8065501516710 Data Sheet

Intel

®

 Atom™ Processor C2000 Product Family for Microserver

September 2014

Datasheet, Vol. 2 of 3

Order Number: 330061-002US

69

Hardware correctable errors include those error conditions where the system recovers 

without any loss of information. The hardware corrects these errors, and no software 

intervention is required. For example, a link CRC error which is corrected by the data 

link level retry is considered a correctable error.

• An error is corrected by the hardware without software intervention. System 

operation is degraded, but its functionality is not compromised.

• A correctable error is logged and reported in a implementation specific manner:

— Upon the immediate detection of the correctable error, or
— Upon the accumulation of errors reaching to a threshold.

Fatal errors are uncorrectable error conditions which render the SoC hardware 

unreliable. For a fatal error, inband reporting to the CPU occurs. A reset is required to 

return to reliable operation.

• System integrity is compromised and continued operation is not feasible.
• System interface is compromised.
• Inband reporting is feasible, for example, an uncorrectable tag error in cache or a 

permanent PCIe* link failure.

• This error requires immediate logging and reporting of the error to the CPU.

Non-fatal errors are software correctable or software/hardware uncorrectable errors 

which cause a particular transaction to be unreliable, but the system hardware is 

otherwise fully functional. Isolating non-fatal from fatal errors provides system 

management software the opportunity to recover from the error without reset and 

disturbing other transactions in progress. Devices not associated with the transaction in 

error are not impacted by the error. An example of recoverable error is an ECC 

uncorrectable error that affects only the data portion of a transaction.

• The error is not corrected by the hardware and requires software intervention for 

correction.

• Or the error is not corrected. Data integrity is compromised, but system operation 

is not compromised.

• This error requires immediate logging and reporting of the error to the CPU.

The OS/firmware takes the action to contain the error.

Software correctable errors are considered as a recoverable error. These errors include 

those error conditions where the system recovers without any loss of information. 

Software intervention is required to correct these errors.

• This error requires immediate logging and reporting of the error to the CPU.
• The firmware or other system software layers take corrective actions.

Data integrity is not compromised with such errors.