Description

In certain rare cases, M10-4 systems with 3.4GHz CPUs or M10-4S systems with 3.7GHz CPUs with XCP revisions prior to 2240 on the eXtended System Control Facility (XSCFU) may unexpectedly reboot and degrade CPUs with a "CPU internal serious" error.

Occurrence

This issue can occur on the following platforms:

• M10-4 with 3.4GHz CPU with XCP revisions prior to 2240 (on the XSCFU)
• M10-4S with 3.7GHz CPU with XCP revisions prior to 2240 (on the XSCFU)

Note: No other systems or platforms are affected by this issue.

To determine the XCP version on the system, the following command can be used:

      XSCF> version -c xcp
      BB#00-XSCF#0 (Master)
      XCP0 (Reserve): 2240
      XCP1 (Current): 2240

To determine the CPU speed, use the following command on the XSCFU:

      XSCF> showhardconf

      CMUU Status:Degraded; Ver:0401h; Serial:PP????????  ;
            + FRU-Part-Number:CA07361-D281 B3   /7088708   ;
            + Memory_Size:0 GB; Type: B ;
           CPU#0 Status:DegrIn rare casesaded; Ver:4142h; Serial:00100181;
                + Freq:3.400 GHz; Type:0x20;
                + Core:16; Strand:2;

Symptoms

After an initial power on or an unexpected reboot, the showlogs error output will have the following error recorded:

      Date: Dec 24 19:16:34 EDT 2014
         Code: 40000108-0062040000ff0000ff-05012104002002250108e000
         Status: Warning                Occurred: Dec 24 19:15:38.503 EDT 2014
         FRU: /BB#0/CMUU
         Msg: CPU internal serious error
         Diagnostic Code:
             00000000 00000000 0000
             00000000 00000000 0000
             00000000 00000000 0000
             00000000 00000000 00000000 00000000
             00000000 00000000 0000 

Workaround

There is no workaround for this issue.

This issue is addressed in the following releases:

• Firmware XCP2240 for M10-4 as delivered in patch 20311303 or later
• Firmware XCP2240 for M10-4S as delivered in patch 20311306 or later

Please see <Document:1554086.1> "M10-1/M10-4/M10-4S XSCF Control Package (XCP) Firmware Image Software Version Matrix Information" for more information on XCP2240 firmware.

Patches

<SUNPATCH:20311303>
<SUNPATCH:20311306>

History

 09-Feb-2015: Document released, status is Resolved

Questions regarding this document should be addressed to
sunalertpublication_us_grp@oracle.com and copy the
responsible engineer/submitter listed below.

Internal Contributor/Submitter: mike.cootware@oracle.com
Internal Eng Responsible Engineer: mike.cootware@oracle.com
Oracle Knowledge Analyst: david.mariotto@oracle.com
Internal Eng Business Unit Group:
Internal Associated SRs:3-9675391261, 3-9919541511, 3-9763872101, 3-9801580850, 3-9856645291,
Internal Resolution Patches: M10-4 - Patch 20311303, M10-4S - 20311306

References

This solution has no attachment