Upgrade System Firmware to v9.7.6.b (or later) to Avoid some SPARC T7-4 CLINK Issues on 1 PM/1 PFM Configurations (Doc ID 2289763.1)

Last updated on AUGUST 02, 2017

Applies to:

SPARC T7-4 - Version All Versions to All Versions [Release All Releases]
Information in this document applies to any platform.

Symptoms

Only happens on SPARC T7-4 configuration with a single Processor Module (PM) and a Processor Filler Module (PFM) installed. This issue does not affect the SPARC T7-4 two Processor Modules (2 PM's) configurations.

1. fault.cpu.generic-sparc.c2c to PM0 or PFM for one or more of CLINKs in the list below. Listed below are the Clinks that go through through the PFM retimer.

/SYS/PM0/CM0/CMP/CLX0/CLINK0
/SYS/PM0/CM0/CMP/CLX0/CLINK1
/SYS/PM0/CM0/CMP/CLX1/CLINK2
/SYS/PM0/CM0/CMP/CLX1/CLINK3
/SYS/PM0/CM1/CMP/CLX0/CLINK2
/SYS/PM0/CM1/CMP/CLX0/CLINK3
/SYS/PM0/CM1/CMP/CLX1/CLINK0
/SYS/PM0/CM1/CMP/CLX1/CLINK1

For example,

-> show faulty

Target | Property | Value
-------------------+-----------------------+-----------------------------------
/SP/faultmgmt/0 | fru | /SYS/PFM1
/SP/faultmgmt/0/ | class | fault.cpu.generic-sparc.c2c
faults/0 | |
/SP/faultmgmt/0/ | sunw-msg-id | SPSUN4V-8000-2S
faults/0 | |
/SP/faultmgmt/0/ | component | /SYS/PFM1
faults/0 | |
.
.
.
/SP/faultmgmt/1 | fru | /SYS/PM0
/SP/faultmgmt/1/ | class | fault.cpu.generic-sparc.c2c
faults/0 | |
/SP/faultmgmt/1/ | sunw-msg-id | SPSUN4V-8000-2S
faults/0 | |
/SP/faultmgmt/1/ | component | /SYS/PM0/CM1/CMP/CLX1/CLINK1
faults/0 | |

.
.
.
/SP/faultmgmt/1/ | component | /SYS/PM0/CM0/CMP/CLX1/CLINK3
faults/1 | |
/SP/faultmgmt/1/ | uuid | 62c420ce-c773-62a7-f593-d03f2f42db
faults/1 | | aa
/SP/faultmgmt/1/ | timestamp | 2017-02-03/05:22:15
faults/1 | |

 

2. Clink training error during powering on the system or link training fault ereport.

For example,

2017-02-27 10:14:53 0:00:0> NOTICE: Pretraining Coherency Links (3 of 3)
2017-02-27 10:15:51 0:00:0> NOTICE: Training Coherency Links
2017-02-27 10:15:52 0:00:0> ERROR: /SYS/PM0/CM0/CMP/CLX0/CLINK1/LANE1: SB link failed to train

2017-02-27/10:15:53 ereport.hc.dev_fault@/SYS/PM0/CM0/CMP/CLX0/CLINK1/LANE1
reason = SB link failed to train
link-status = 0x4000340000000200
SB-lanes = 0xb5e20
system_component_firmware_manufacturer = Oracle Corporation
system_component_firmware_versions = (ILOM)3.2.7.1.c,(POST)5.5.3.a,(OBP)4.40.3,(HV)1.17.3.a
system_component_firmware_releases = (ILOM)2016.09.16,(POST)2016.08.26,(OBP)2016.08.17,(HV)2016.09.16

 

3. Excessive crc-link ereports under SP.

For example,

faultmgmtsp> fmdump -e
TIMESTAMP EREPORT
2017-02-01/15:47:21 ereport.cpu.generic-sparc.c2c-link@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/15:48:53 ereport.cpu.generic-sparc.c2c-link-reinit@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/15:49:46 ereport.cpu.generic-sparc.c2c-link@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/15:52:04 ereport.cpu.generic-sparc.c2c-link@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/15:54:30 ereport.cpu.generic-sparc.c2c-link@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/15:57:04 ereport.cpu.generic-sparc.c2c-link@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/15:58:14 ereport.cpu.generic-sparc.c2c-link-reinit@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/15:59:42 ereport.cpu.generic-sparc.c2c-link@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/16:01:49 ereport.cpu.generic-sparc.c2c-link@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/16:03:06 ereport.cpu.generic-sparc.c2c-link-reinit@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/16:06:06 ereport.cpu.generic-sparc.c2c-link@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/16:20:01 ereport.cpu.generic-sparc.c2c-link@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/16:32:55 ereport.cpu.generic-sparc.c2c-link@/SYS/PM0/CM0/CMP/CLX1/CLINK3
2017-02-01/16:54:48 ereport.cpu.generic-sparc.c2c-link@/SYS/PM0/CM0/CMP/CLX1/CLINK3

.
.
.

 

Cause

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