Description

This article will describe how to recover the device if EACHIP_CMERROR_JG, code: 0x2400e4 alarm is seen.

Symptoms

This is a transient hardware error seen with the EA chip & there will be the below-mentioned alarm & logs.
 

Before PR1390333


Alarm: 
> show chassis alarms
1 alarms currently active
Alarm time               Class  Description
2023-05-20 19:37:48 IST  Major  FPC 0 Major Errors - EA Error code: 0x2400e4

Error logs:

fpc0 jgci_intf_log_interrupt_status: interface EA[0:0]-intf-1 chan1 crc_count current 1 accumulated 1 
Alarm set: FPC color=RED, class=CHASSIS, reason=FPC 10 Major Errors - EA Error code: 0x2400e4
Error: /pfe/0/cm/0/EA[0:0]/0/EACHIP_CMERROR_JGCI_MAJOR_CRC_ERR (0x2400e4), severity: major, module: EA[0:0], type: EACHIP JGCI MAJOR_CRC_ERROR


After PR1390333 (This alarm is reclassified from Major to Minor.)


Alarm: 
> show chassis alarms
1 alarms currently active
Alarm time               Class  Description
2023-05-20 19:37:48 IST  Minor  FPC 0 Minor Errors

Error logs: 
fpc0 jgci_intf_log_interrupt_status: interface EA[0:0]-intf-1 chan1 crc_count current 1 accumulated 1
Alarm set: FPC id=167772264, color=YELLOW, class=CHASSIS, reason=FPC 0 Minor Errors
Error: /fpc/0/pfe/0/cm/0/EA[0:0]/0/EACHIP_CMERROR_JGCI_MINOR_CRC_ERR (0x2400e4), scope: pfe, category: functional, severity: minor, module: EA[0:0], type: EACHIP JGCI MINOR_CRC_ERROR

Solution

Below are the steps to recover the FPC from the problem state.
 

Before PR1390333
 

After PR1186421, the PFE gets disabled for a Major error & the only way to recover is to reboot the FPC.

  • request chassis fpc restart slot <>


After PR1390333


Here, this error is reclassified as Minor & can be recovered by CLI
  • clear chassis fpc errors fpc-slot <> all

 
Recovery logs:
UI_CMDLINE_READ_LINE: User 'root', command 'clear chassis fpc errors fpc-slot 0 all '
fpc0 Performing action clear-cmalarm for error /fpc/0/pfe/0/cm/0/EA[0:0]/0/EACHIP_CMERROR_JGCI_MINOR_CRC_ERR (0x2400e4) in module: EA[0:0] with scope: pfe category: functional level: minor
fpc0 cmerror_take_action_helper: performing action 8 for scope 1 category 0 level 0 err_id /fpc/0/pfe/0/cm/0/EA[0:0]/0/EACHIP_CMERROR_JGCI_MINOR_CRC_ERR(0x2400e4) module id 15
fpc0 Cmerror Op Clear All: EA[0:0]: cleared by junos CLI. (URI: /fpc/0/pfe/0/cm/0/EA[0:0]/0/EACHIP_CMERROR_JGCI_MINOR_CRC_ERR)

Modification History

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