Sun Fire[TM] 12K/15K/E20K/E25K: "Error reading E$Dimm SBxx/P[0,1]/E[0,1] seeprom" reported for a 2-cpu board.

Asset ID:	1-72-1002119.1
Update Date:	2016-05-02
Keywords:

Solution Type Problem Resolution Sure

Solution 1002119.1 : Sun Fire[TM] 12K/15K/E20K/E25K: "Error reading E$Dimm SBxx/P[0,1]/E[0,1] seeprom" reported for a 2-cpu board.

Applies to:

Sun Fire 12K Server - Version All Versions and later
Sun Fire 15K Server - Version All Versions and later
Sun Fire E20K Server - Version All Versions and later
Sun Fire E25K Server - Version All Versions and later
All Platforms

Symptoms

While creating a dumpfile (hpost -D), we can see an error in the post logs pointing to the seeproms of the Ecache for processors P0 and P1:

Error reading E$Dimm SBxx/P[0,1]/E[0,1] seeprom

Example (first part of post logfile):

# SMI Sun Fire 12/15/20/25K POST log opened Mon Feb 21 05:37:33 2005
# hpost version 1.4.1 Generic 117371-06 Nov 18 2004 10:08:04
# libxcpost.so v. 1.4.1 Generic 117371-06 Nov 18 2004 09:34:56
# pid = 25315 level = 16 verbose_level = 20
# SC name: xxxxxxxxxxxxxx. ChHostID: xxxxxxxxxxxxx
# Domain Id = A
# Parent PID = 874: dsmd
# Cmdline: /opt/SUNWSMS/SMS1.4.1/bin/hpost -d A -D/var/opt/SUNWSMS/SMS1.4.1/adm/A/dump/dsmd.rstop.050221.0537.32 -y "DSMD RecordStop Dump"
Minimum proc_dump_delay has not been met. Pausing 6 seconds...
Error reading E$Dimm SB06/P0/E0 seeprom
Error reading E$Dimm SB06/P0/E1 seeprom
Error reading E$Dimm SB06/P1/E0 seeprom
Error reading E$Dimm SB06/P1/E1 seeprom

Cause

This usually happens because the CPU/Memory Uniboard has only two cpus installed (processors in slots P2 and P3).

Solution

Check the prtfru output available in the explorer for the main SC (explorer_dir/fru/prtfru_-x.out), looking for the "Segment ID" of the impacted board.

For instance:

SEGMENT: ID
/SG_CPUSpeedR
/SG_CPUSpeedR/CPU0_SerialNum: 0000000000000000000000000000000000000000000000000000000000000000
/SG_CPUSpeedR/CPU0_Speed: 0
/SG_CPUSpeedR/CPU1_SerialNum: 0000000000000000000000000000000000000000000000000000000000000000
/SG_CPUSpeedR/CPU1_Speed: 0
/SG_CPUSpeedR/CPU2_SerialNum: 0000000000000000000000010010111110100110000001100101010010101100
/SG_CPUSpeedR/CPU2_Speed: 1200
/SG_CPUSpeedR/CPU3_SerialNum: 0000000000000000000000010010111110100110000001100101010010101100
/SG_CPUSpeedR/CPU3_Speed: 1200

This confirms that this is a 2-cpu board (2 x 1200MHz in this case).

If the prtfru output does not confirm that the impacted board is a 2-cpu board, then other MOS documents must be checked to determine the root cause, and eventually a Service Request needs to be opened.

This behavior has to do with the order of probing.
Hpost checks the E$ seeprom before checking the processor presence.

Conclusion:
These messages are usually harmless and can be safely ignored; they only occur while creating a dumpfile via a 'hpost -D'.

Additional Information
This error during the hpost may be associated with the error reported in the platform messages file (explorer_dir/sf15k/adm/platform/messages) by frad (the FRU access daemon) failing to access the SEEPROM.

Example :

frad[...]: [ERR SeepromInfoPro.cc 2064] Seeprom Info HWAD proxy call failed on ECACHE at SB6/P0/E0, ecode: 1124 for client 25315
frad[...]: [ERR FRUData.cc 757] Failed to read packet SD/ManR on ECACHE at SB6/P0/E0
frad[...]: [ERR SeepromInfoPro.cc 2064] Seeprom Info HWAD proxy call failed on ECACHE at SB6/P0/E1, ecode: 1124 for client 25315
frad[...]: [ERR FRUData.cc 757] Failed to read packet SD/ManR on ECACHE at SB6/P0/E1
frad[...]: [ERR SeepromInfoPro.cc 2064] Seeprom Info HWAD proxy call failed on ECACHE at SB6/P1/E0, ecode: 1124 for client 25315
frad[...]: [ERR FRUData.cc 757] Failed to read packet SD/ManR on ECACHE at SB6/P1/E0
frad[...]: [ERR SeepromInfoPro.cc 2064] Seeprom Info HWAD proxy call failed on ECACHE at SB6/P1/E1, ecode: 1124 for client 25315
frad[...]: [ERR FRUData.cc 757] Failed to read packet SD/ManR on ECACHE at SB6/P1/E1

References

<NOTE:1011873.1> - Sun Fire[TM] 12K/15K/F20K/F25K: Frad SEEPROM failure

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