Description

The following error is observed in /var/logs message files- fpc6 fpc6 dcpfe: Cmerror Op Set: PE Chip: PE2[2]: RT:correct0_protect_intr: 0x2: Fatal LMEM Error. 1 bit for each GN slice MEM:lmem , MEMTYPE: 2,ADDR : [h2e00000, h2c00000,h2a00000, h2800000],#012 (URI: /fpc/x/pfe/0/cm/0/PE_Chip/2/PECHIP_CMERROR_RT_CORRECT0_FSET_REG_CORRECTED_LMEM)

Symptoms

We notice the below logs are getting generated continuously on FPC in messages file.

dcpfe: Cmerror Op Set: PE Chip: PE2[2]: RT:correct0_protect_intr: 0x2: Fatal LMEM Error. 1 bit for each GN slice MEM:lmem , MEMTYPE: 2,ADDR : [h2e00000, h2c00000,h2a00000, h2800000],#012 (URI: /fpc/x/pfe/0/cm/0/PE_Chip/2/PECHIP_CMERROR_RT_CORRECT0_FSET_REG_CORRECTED_LMEM)

 

dcpfe: Performing action log for error /fpc/x/pfe/0/cm/0/PE_Chip/2/PECHIP_CMERROR_RT_CORRECT0_FSET_REG_CORRECTED_LMEM (0x2100ba) in module: PE Chip with scope: pfe category: functional level: minor

 

dcpfe: Cmerror Op Clear: PE Chip: PE2[2]: RT: Clear Fatal LMEM Error. 1 bit for each GN slice MEM:lmem , MEMTYPE: 2,ADDR : [h2e00000, h2c00000,h2a00000, h2800000],#012 (URI: /fpc/x/pfe/0/cm/0/PE_Chip/2/PECHIP_CMERROR_RT_CORRECT0_FSET_REG_CORRECTED_LMEM)

Solution

  • Please verify the health status of the chassis using the below commands, if there is any core-dump, storage issue or high cpu please work on it before proceeding with next steps.

 1. show chassis routing-engine
 2. show system processes extensive | except 0.0 
 3. 
show chassis alarms
 4. show system storage
 5. show system core-dumps
 6. show chassis environment
 

  • Check the VAR log message files, if we see the below logs messages:

fpcX fpcX dcpfe: Cmerror Op Set: PE Chip: PE2[2]: RT:correct0_protect_intr: 0x2: Fatal LMEM Error. 1 bit for each GN slice MEM:lmem , MEMTYPE: 2,ADDR : [h2e00000, h2c00000,h2a00000, h2800000],#012 (URI: /fpc/x/pfe/0/cm/0/PE_Chip/2/PECHIP_CMERROR_RT_CORRECT0_FSET_REG_CORRECTED_LMEM)

fpcX fpcX dcpfe: Performing action log for error /fpc/x/pfe/0/cm/0/PE_Chip/2/PECHIP_CMERROR_RT_CORRECT0_FSET_REG_CORRECTED_LMEM (0x2100ba) in module: PE Chip with scope: pfe category: functional level: minor 

fpcX fpcX dcpfe: Cmerror Op Clear: PE Chip: PE2[2]: RT: Clear Fatal LMEM Error. 1 bit for each GN slice MEM:lmem , MEMTYPE: 2,ADDR : [h2e00000, h2c00000,h2a00000, h2800000],#012 (URI: /fpc/x/pfe/0/cm/0/PE_Chip/2/PECHIP_CMERROR_RT_CORRECT0_FSET_REG_CORRECTED_LMEM)

 

  • The error here is memory bit error lookup on the mentioned memory block. A reboot is very likely to clean up this memory, and it should not cause further errors.
  • However, if the error continues then please open a Jtac case to process the RMA for faulty FPC.
  • If issue clears after the reboot, it should be transient HW issue.

Modification History

version 1