Description

This article explains a problem with QFX10002 device where HMC fatal errors were observed.

HMC Errors are transient error conditions observed on qfx10002.

Symptoms

1. Major PECHIP alarm is seen.

2. Following errors seen in the logs

 

Mar 18 14:21:32.138 LAB fpc0 Cmerror Op Set: Generic HMC::FATAL ERROR!! from HMC0d-08-11: eri timeout error (URI: /fpc/0/pfe/0/cm/0/Generic_HMC/2/HMC_ERI_TIMEOUT_ERROR[7])

Mar 18 14:22:02.426 LAB fpc0 Cmerror Op Set: Generic HMC::FATAL ERROR!! from HMC0d-08-11: eri timeout error (URI: /fpc/0/pfe/0/cm/0/Generic_HMC/2/HMC_ERI_TIMEOUT_ERROR[7])

Mar 18 14:22:32.638 LAB fpc0 Cmerror Op Set: Generic HMC::FATAL ERROR!! from HMC0d-08-11: eri timeout error (URI: /fpc/0/pfe/0/cm/0/Generic_HMC/2/HMC_ERI_TIMEOUT_ERROR[7])

Mar 18 14:23:02.875 LAB fpc0 Cmerror Op Set: Generic HMC::FATAL ERROR!! from HMC0d-08-11: eri timeout error (URI: /fpc/0/pfe/0/cm/0/Generic_HMC/2/HMC_ERI_TIMEOUT_ERROR[7])

Mar 18 14:23:33.132 LAB fpc0 Cmerror Op Set: Generic HMC::FATAL ERROR!! from HMC0d-08-11: eri timeout error (URI: /fpc/0/pfe/0/cm/0/Generic_HMC/2/HMC_ERI_TIMEOUT_ERROR[7])

 

3. HMC error code will be 0x7f. And along with that above logs observed.

 

 

Solution

The device could be recovered after a reboot/power cycle.

Please open JTAC case to review the errstat for HMC to confirm the actual issue.

Modification History

05/19/2023 First Version