SYS/MB/CPU0 Fault on mainboard

System: Sun T5440
SunOS servername 5.10 Generic_144488-17 sun4u sparc SUNW,SPARC-Enterprise Solaris

We have noticed a fault on the mainboard that seemed to coincide with one of our applications failing with a 'Bus Error.' Oracle has not been of much help thus far, we upgraded to the latest firmware for the service processor, as well as the latest patch cluster.

Can I take CPU0 offline to test if the application still fails with a bus error, and if so, what command do I run to do so?

Thanks in advance.

# prtdiag -v
System Configuration:  Sun Microsystems  sun4v T5440
Memory size: 32480 Megabytes

================================ Virtual CPUs ================================


CPU ID Frequency Implementation         Status
------ --------- ---------------------- -------
0      1414 MHz  SUNW,UltraSPARC-T2+    on-line
1      1414 MHz  SUNW,UltraSPARC-T2+    on-line
2      1414 MHz  SUNW,UltraSPARC-T2+    on-line
3      1414 MHz  SUNW,UltraSPARC-T2+    on-line
4      1414 MHz  SUNW,UltraSPARC-T2+    on-line
5      1414 MHz  SUNW,UltraSPARC-T2+    on-line
6      1414 MHz  SUNW,UltraSPARC-T2+    on-line
7      1414 MHz  SUNW,UltraSPARC-T2+    on-line
8      1414 MHz  SUNW,UltraSPARC-T2+    on-line
9      1414 MHz  SUNW,UltraSPARC-T2+    on-line
10     1414 MHz  SUNW,UltraSPARC-T2+    on-line
11     1414 MHz  SUNW,UltraSPARC-T2+    on-line
12     1414 MHz  SUNW,UltraSPARC-T2+    on-line
13     1414 MHz  SUNW,UltraSPARC-T2+    on-line
14     1414 MHz  SUNW,UltraSPARC-T2+    on-line
15     1414 MHz  SUNW,UltraSPARC-T2+    on-line
16     1414 MHz  SUNW,UltraSPARC-T2+    on-line
17     1414 MHz  SUNW,UltraSPARC-T2+    on-line
18     1414 MHz  SUNW,UltraSPARC-T2+    on-line
19     1414 MHz  SUNW,UltraSPARC-T2+    on-line
20     1414 MHz  SUNW,UltraSPARC-T2+    on-line
21     1414 MHz  SUNW,UltraSPARC-T2+    on-line
22     1414 MHz  SUNW,UltraSPARC-T2+    on-line
23     1414 MHz  SUNW,UltraSPARC-T2+    on-line
24     1414 MHz  SUNW,UltraSPARC-T2+    on-line
25     1414 MHz  SUNW,UltraSPARC-T2+    on-line
26     1414 MHz  SUNW,UltraSPARC-T2+    on-line
27     1414 MHz  SUNW,UltraSPARC-T2+    on-line
28     1414 MHz  SUNW,UltraSPARC-T2+    on-line
29     1414 MHz  SUNW,UltraSPARC-T2+    on-line
30     1414 MHz  SUNW,UltraSPARC-T2+    on-line
31     1414 MHz  SUNW,UltraSPARC-T2+    on-line
32     1414 MHz  SUNW,UltraSPARC-T2+    on-line
33     1414 MHz  SUNW,UltraSPARC-T2+    on-line
34     1414 MHz  SUNW,UltraSPARC-T2+    on-line
35     1414 MHz  SUNW,UltraSPARC-T2+    on-line
36     1414 MHz  SUNW,UltraSPARC-T2+    on-line
37     1414 MHz  SUNW,UltraSPARC-T2+    on-line
38     1414 MHz  SUNW,UltraSPARC-T2+    on-line
39     1414 MHz  SUNW,UltraSPARC-T2+    on-line
40     1414 MHz  SUNW,UltraSPARC-T2+    on-line
41     1414 MHz  SUNW,UltraSPARC-T2+    on-line
42     1414 MHz  SUNW,UltraSPARC-T2+    on-line
43     1414 MHz  SUNW,UltraSPARC-T2+    on-line
44     1414 MHz  SUNW,UltraSPARC-T2+    on-line
45     1414 MHz  SUNW,UltraSPARC-T2+    on-line
46     1414 MHz  SUNW,UltraSPARC-T2+    on-line
47     1414 MHz  SUNW,UltraSPARC-T2+    on-line
48     1414 MHz  SUNW,UltraSPARC-T2+    on-line
49     1414 MHz  SUNW,UltraSPARC-T2+    on-line
50     1414 MHz  SUNW,UltraSPARC-T2+    on-line
51     1414 MHz  SUNW,UltraSPARC-T2+    on-line
52     1414 MHz  SUNW,UltraSPARC-T2+    on-line
53     1414 MHz  SUNW,UltraSPARC-T2+    on-line
54     1414 MHz  SUNW,UltraSPARC-T2+    on-line
55     1414 MHz  SUNW,UltraSPARC-T2+    on-line
56     1414 MHz  SUNW,UltraSPARC-T2+    on-line
57     1414 MHz  SUNW,UltraSPARC-T2+    on-line
58     1414 MHz  SUNW,UltraSPARC-T2+    on-line
59     1414 MHz  SUNW,UltraSPARC-T2+    on-line
60     1414 MHz  SUNW,UltraSPARC-T2+    on-line
61     1414 MHz  SUNW,UltraSPARC-T2+    on-line
62     1414 MHz  SUNW,UltraSPARC-T2+    on-line
63     1414 MHz  SUNW,UltraSPARC-T2+    on-line
64     1414 MHz  SUNW,UltraSPARC-T2+    on-line
65     1414 MHz  SUNW,UltraSPARC-T2+    on-line
66     1414 MHz  SUNW,UltraSPARC-T2+    on-line
67     1414 MHz  SUNW,UltraSPARC-T2+    on-line
68     1414 MHz  SUNW,UltraSPARC-T2+    on-line
69     1414 MHz  SUNW,UltraSPARC-T2+    on-line
70     1414 MHz  SUNW,UltraSPARC-T2+    on-line
71     1414 MHz  SUNW,UltraSPARC-T2+    on-line
72     1414 MHz  SUNW,UltraSPARC-T2+    on-line
73     1414 MHz  SUNW,UltraSPARC-T2+    on-line
74     1414 MHz  SUNW,UltraSPARC-T2+    on-line
75     1414 MHz  SUNW,UltraSPARC-T2+    on-line
76     1414 MHz  SUNW,UltraSPARC-T2+    on-line
77     1414 MHz  SUNW,UltraSPARC-T2+    on-line
78     1414 MHz  SUNW,UltraSPARC-T2+    on-line
79     1414 MHz  SUNW,UltraSPARC-T2+    on-line
80     1414 MHz  SUNW,UltraSPARC-T2+    on-line
81     1414 MHz  SUNW,UltraSPARC-T2+    on-line
82     1414 MHz  SUNW,UltraSPARC-T2+    on-line
83     1414 MHz  SUNW,UltraSPARC-T2+    on-line
84     1414 MHz  SUNW,UltraSPARC-T2+    on-line
85     1414 MHz  SUNW,UltraSPARC-T2+    on-line
86     1414 MHz  SUNW,UltraSPARC-T2+    on-line
87     1414 MHz  SUNW,UltraSPARC-T2+    on-line
88     1414 MHz  SUNW,UltraSPARC-T2+    on-line
89     1414 MHz  SUNW,UltraSPARC-T2+    on-line
90     1414 MHz  SUNW,UltraSPARC-T2+    on-line
91     1414 MHz  SUNW,UltraSPARC-T2+    on-line
92     1414 MHz  SUNW,UltraSPARC-T2+    on-line
93     1414 MHz  SUNW,UltraSPARC-T2+    on-line
94     1414 MHz  SUNW,UltraSPARC-T2+    on-line
95     1414 MHz  SUNW,UltraSPARC-T2+    on-line
96     1414 MHz  SUNW,UltraSPARC-T2+    on-line
97     1414 MHz  SUNW,UltraSPARC-T2+    on-line
98     1414 MHz  SUNW,UltraSPARC-T2+    on-line
99     1414 MHz  SUNW,UltraSPARC-T2+    on-line
100    1414 MHz  SUNW,UltraSPARC-T2+    on-line
101    1414 MHz  SUNW,UltraSPARC-T2+    on-line
102    1414 MHz  SUNW,UltraSPARC-T2+    on-line
103    1414 MHz  SUNW,UltraSPARC-T2+    on-line
104    1414 MHz  SUNW,UltraSPARC-T2+    on-line
105    1414 MHz  SUNW,UltraSPARC-T2+    on-line
106    1414 MHz  SUNW,UltraSPARC-T2+    on-line
107    1414 MHz  SUNW,UltraSPARC-T2+    on-line
108    1414 MHz  SUNW,UltraSPARC-T2+    on-line
109    1414 MHz  SUNW,UltraSPARC-T2+    on-line
110    1414 MHz  SUNW,UltraSPARC-T2+    on-line
111    1414 MHz  SUNW,UltraSPARC-T2+    on-line
112    1414 MHz  SUNW,UltraSPARC-T2+    on-line
113    1414 MHz  SUNW,UltraSPARC-T2+    on-line
114    1414 MHz  SUNW,UltraSPARC-T2+    on-line
115    1414 MHz  SUNW,UltraSPARC-T2+    on-line
116    1414 MHz  SUNW,UltraSPARC-T2+    on-line
117    1414 MHz  SUNW,UltraSPARC-T2+    on-line
118    1414 MHz  SUNW,UltraSPARC-T2+    on-line
119    1414 MHz  SUNW,UltraSPARC-T2+    on-line
120    1414 MHz  SUNW,UltraSPARC-T2+    on-line
121    1414 MHz  SUNW,UltraSPARC-T2+    on-line
122    1414 MHz  SUNW,UltraSPARC-T2+    on-line
123    1414 MHz  SUNW,UltraSPARC-T2+    on-line
124    1414 MHz  SUNW,UltraSPARC-T2+    on-line
125    1414 MHz  SUNW,UltraSPARC-T2+    on-line
126    1414 MHz  SUNW,UltraSPARC-T2+    on-line
127    1414 MHz  SUNW,UltraSPARC-T2+    on-line

======================= Physical Memory Configuration ========================
Segment Table:
--------------------------------------------------------------
Base           Segment  Interleave  Bank     Contains
Address        Size     Factor      Size     Modules
--------------------------------------------------------------
0x0            32 GB    8           4 GB     MB/CPU0/CMP0/BR0/CH0/D0
                                             MB/CPU0/CMP0/BR0/CH1/D0
                                    4 GB     MB/CPU0/CMP0/BR1/CH0/D0
                                             MB/CPU0/CMP0/BR1/CH1/D0
                                    4 GB     MB/MEM0/CMP0/BR0/CH0/D1
                                             MB/MEM0/CMP0/BR0/CH1/D1
                                    4 GB     MB/MEM0/CMP0/BR1/CH0/D1
                                             MB/MEM0/CMP0/BR1/CH1/D1
                                    4 GB     MB/CPU1/CMP1/BR0/CH0/D0
                                             MB/CPU1/CMP1/BR0/CH1/D0
                                    4 GB     MB/CPU1/CMP1/BR1/CH0/D0
                                             MB/CPU1/CMP1/BR1/CH1/D0
                                    4 GB     MB/MEM1/CMP1/BR0/CH0/D1
                                             MB/MEM1/CMP1/BR0/CH1/D1
                                    4 GB     MB/MEM1/CMP1/BR1/CH0/D1
                                             MB/MEM1/CMP1/BR1/CH1/D1


================================ IO Devices ================================
Slot +            Bus   Name +                            Model
Status            Type  Path
----------------------------------------------------------------------------
MB/HBA            PCIE  scsi-pciex1000,58                 LSI,1068E
                        /pci@400/pci@0/pci@1/scsi@0
MB/PCIE0          PCIE  network-pciex8086,105f            SUNW,pcie-northstar
                        /pci@400/pci@0/pci@d/network@0
MB/PCIE0          PCIE  network-pciex8086,105f            SUNW,pcie-northstar
                        /pci@400/pci@0/pci@d/network@0,1
MB/NET0           PCIE  network-pciex108e,abcd            SUNW,pcie-neptune
                        /pci@500/pci@0/pci@c/network@0
MB/NET1           PCIE  network-pciex108e,abcd            SUNW,pcie-neptune
                        /pci@500/pci@0/pci@c/network@0,1
MB/NET2           PCIE  network-pciex108e,abcd            SUNW,pcie-neptune
                        /pci@500/pci@0/pci@c/network@0,2
MB/NET3           PCIE  network-pciex108e,abcd            SUNW,pcie-neptune
                        /pci@500/pci@0/pci@c/network@0,3
MB                PCIX  usb-pciclass,0c0310
                        /pci@400/pci@0/pci@9/pci@0/usb@0
MB                PCIX  usb-pciclass,0c0310
                        /pci@400/pci@0/pci@9/pci@0/usb@0,1
MB                PCIX  usb-pciclass,0c0320
                        /pci@400/pci@0/pci@9/pci@0/usb@0,2

============================ Environmental Status ============================
Fan sensors:
----------------------------------------------------------------
Location                           Sensor             Status
----------------------------------------------------------------
SYS/MB/FT0                         TACH               ok
SYS/MB/FT1                         TACH               ok
SYS/MB/FT2                         TACH               ok
SYS/MB/FT3                         TACH               ok

Fan indicators:
----------------------------------------------------------------
Location                           Sensor             Condition
----------------------------------------------------------------
SYS/PS0                            FAN_FAULT          ok
SYS/PS1                            FAN_FAULT          ok
SYS/PS2                            FAN_FAULT          ok
SYS/PS3                            FAN_FAULT          ok

Temperature sensors:
----------------------------------------------------------------
Location                           Sensor             Status
----------------------------------------------------------------
SYS/MB                             T_MB2              ok
SYS/MB/CPU0                        T_CPU_INLET        ok
SYS/MB/CPU0                        T_VF_TOP           ok
SYS/MB/CPU1                        T_CPU_INLET        ok
SYS/MB/CPU1                        T_VF_TOP           ok
SYS                                T_AMB              ok

Temperature indicators:
----------------------------------------------------------------
Location                           Indicator          Condition
----------------------------------------------------------------
SYS/PS0                            TEMP_FAULT         ok
SYS/PS1                            TEMP_FAULT         ok
SYS/PS2                            TEMP_FAULT         ok
SYS/PS3                            TEMP_FAULT         ok

Current sensors:
----------------------------------------------------------------
Location                           Sensor             Status
----------------------------------------------------------------
SYS/MB/CPU0/DVRM_CORE              I_+1V1             ok
SYS/MB/CPU1/DVRM_CORE              I_+1V1             ok
SYS/PS0                            I_+12V             ok
SYS/PS0                            I_AC               ok
SYS/PS0                            I_AC_LIMIT         ok
SYS/PS0                            I_DC_LIMIT         ok
SYS/PS1                            I_+12V             ok
SYS/PS1                            I_AC               ok
SYS/PS1                            I_AC_LIMIT         ok
SYS/PS1                            I_DC_LIMIT         ok
SYS/PS2                            I_+12V             ok
SYS/PS2                            I_AC               ok
SYS/PS2                            I_AC_LIMIT         ok
SYS/PS2                            I_DC_LIMIT         ok
SYS/PS3                            I_+12V             ok
SYS/PS3                            I_AC               ok
SYS/PS3                            I_AC_LIMIT         ok
SYS/PS3                            I_DC_LIMIT         ok

Current indicators:
----------------------------------------------------------------
Location                           Indicator          Condition
----------------------------------------------------------------
SYS/PS0                            CUR_FAULT          ok
SYS/PS1                            CUR_FAULT          ok
SYS/PS2                            CUR_FAULT          ok
SYS/PS3                            CUR_FAULT          ok

Voltage sensors:
----------------------------------------------------------------
Location                           Sensor             Status
----------------------------------------------------------------
SYS/MB/SP                          V_+3V3STBY         ok
SYS/MB/SP                          V_+3V3REG          ok
SYS/MB/DVRM_PLX                    V_+1V0             ok
SYS/MB/DVRM_ZAM23                  V_+1V1             ok
SYS/MB/DVRM_ZAM01                  V_+1V1             ok
SYS/MB/DVRM_ZAMP                   V_+1V5             ok
SYS/MB/DVRM_33                     V_+3V3             ok
SYS/MB                             V_+12V             ok
SYS/MB                             V_PHY+2V5          ok
SYS/MB                             V_NEP+1V2          ok
SYS/MB                             V_MAIN+3V3         ok
SYS/MB/CPU0/DVRM_CORE              V_+1V1             ok
SYS/MB/CPU0/DVRM_FBD               V_+1V8             ok
SYS/MB/CPU0/DVRM_15                V_+1V5             ok
SYS/MB/CPU1/DVRM_CORE              V_+1V1             ok
SYS/MB/CPU1/DVRM_FBD               V_+1V8             ok
SYS/MB/CPU1/DVRM_15                V_+1V5             ok
SYS/MB/MEM0/DVRM_15                V_+1V5             ok
SYS/MB/MEM0/DVRM_FBD               V_+1V8             ok
SYS/MB/MEM1/DVRM_15                V_+1V5             ok
SYS/MB/MEM1/DVRM_FBD               V_+1V8             ok
SYS/PS0                            V_+12V             ok
SYS/PS0                            V_AC               ok
SYS/PS1                            V_+12V             ok
SYS/PS1                            V_AC               ok
SYS/PS2                            V_+12V             ok
SYS/PS2                            V_AC               ok
SYS/PS3                            V_+12V             ok
SYS/PS3                            V_AC               ok

Voltage indicators:
----------------------------------------------------------------
Location                           Indicator          Condition
----------------------------------------------------------------
SYS/MB/SP                          V_+3VBATT          ok
SYS/PS0                            AC_POK             ok
SYS/PS0                            DC_POK             ok
SYS/PS0                            VOLT_FAULT         ok
SYS/PS1                            AC_POK             ok
SYS/PS1                            DC_POK             ok
SYS/PS1                            VOLT_FAULT         ok
SYS/PS2                            AC_POK             ok
SYS/PS2                            DC_POK             ok
SYS/PS2                            VOLT_FAULT         ok
SYS/PS3                            AC_POK             ok
SYS/PS3                            DC_POK             ok
SYS/PS3                            VOLT_FAULT         ok

LEDs:
----------------------------------------------------------------
Location                           LED                State
----------------------------------------------------------------
SYS                                SERVICE            steady
SYS                                LOCATE             off
SYS                                ACT                steady
SYS                                PS_FAULT           off
SYS                                TEMP_FAULT         off
SYS                                FAN_FAULT          off
SYS/MB/CPU0/CMP0/BR0/CH0/D0        SERVICE            off
SYS/MB/CPU0/CMP0/BR0/CH1/D0        SERVICE            off
SYS/MB/CPU0/CMP0/BR1/CH0/D0        SERVICE            off
SYS/MB/CPU0/CMP0/BR1/CH1/D0        SERVICE            off
SYS/MB/CPU0                        SERVICE            steady
SYS/MB/CPU1/CMP1/BR0/CH0/D0        SERVICE            off
SYS/MB/CPU1/CMP1/BR0/CH1/D0        SERVICE            off
SYS/MB/CPU1/CMP1/BR1/CH0/D0        SERVICE            off
SYS/MB/CPU1/CMP1/BR1/CH1/D0        SERVICE            off
SYS/MB/CPU1                        SERVICE            off
SYS/MB/MEM0/CMP0/BR0/CH0/D1        SERVICE            off
SYS/MB/MEM0/CMP0/BR0/CH1/D1        SERVICE            off
SYS/MB/MEM0/CMP0/BR1/CH0/D1        SERVICE            off
SYS/MB/MEM0/CMP0/BR1/CH1/D1        SERVICE            off
SYS/MB/MEM0                        SERVICE            off
SYS/MB/MEM1/CMP1/BR0/CH0/D1        SERVICE            off
SYS/MB/MEM1/CMP1/BR0/CH1/D1        SERVICE            off
SYS/MB/MEM1/CMP1/BR1/CH0/D1        SERVICE            off
SYS/MB/MEM1/CMP1/BR1/CH1/D1        SERVICE            off
SYS/MB/MEM1                        SERVICE            off
SYS/MB/FT0                         SERVICE            off
SYS/MB/FT1                         SERVICE            off
SYS/MB/FT2                         SERVICE            off
SYS/MB/FT3                         SERVICE            off
SYS/HDD0                           SERVICE            off
SYS/HDD0                           OK2RM              off
SYS/HDD1                           SERVICE            off
SYS/HDD1                           OK2RM              off
SYS/HDD2                           SERVICE            off
SYS/HDD2                           OK2RM              off
SYS/HDD3                           SERVICE            off
SYS/HDD3                           OK2RM              off

============================ FRU Status ============================
Location                           Name      Status
------------------------------------------------------
SYS                                MB        enabled
SYS/MB                             SP        enabled
SYS/MB                             SCC_NVRAM enabled
SYS/MB                             CPU0      enabled
SYS/MB/CPU0/CMP0/BR0/CH0           D0        enabled
SYS/MB/CPU0/CMP0/BR0/CH1           D0        enabled
SYS/MB/CPU0/CMP0/BR1/CH0           D0        enabled
SYS/MB/CPU0/CMP0/BR1/CH1           D0        enabled
SYS/MB                             CPU1      enabled
SYS/MB/CPU1/CMP1/BR0/CH0           D0        enabled
SYS/MB/CPU1/CMP1/BR0/CH1           D0        enabled
SYS/MB/CPU1/CMP1/BR1/CH0           D0        enabled
SYS/MB/CPU1/CMP1/BR1/CH1           D0        enabled
SYS/MB                             MEM0      enabled
SYS/MB/MEM0/CMP0/BR0/CH0           D1        enabled
SYS/MB/MEM0/CMP0/BR0/CH1           D1        enabled
SYS/MB/MEM0/CMP0/BR1/CH0           D1        enabled
SYS/MB/MEM0/CMP0/BR1/CH1           D1        enabled
SYS/MB                             MEM1      enabled
SYS/MB/MEM1/CMP1/BR0/CH0           D1        enabled
SYS/MB/MEM1/CMP1/BR0/CH1           D1        enabled
SYS/MB/MEM1/CMP1/BR1/CH0           D1        enabled
SYS/MB/MEM1/CMP1/BR1/CH1           D1        enabled
SYS/MB                             FT0       enabled
SYS/MB                             FT1       enabled
SYS/MB                             FT2       enabled
SYS/MB                             FT3       enabled
SYS                                HDD0      enabled
SYS                                HDD1      enabled
SYS                                HDD2      enabled
SYS                                HDD3      enabled
SYS                                DVD       enabled
SYS                                USBBD     enabled
SYS                                PS0       enabled
SYS                                PS1       enabled
SYS                                PS2       enabled
SYS                                PS3       enabled

============================ FW Version ============================
Version
------------------------------------------------------------
 Sun System Firmware 7.4.0.b 2011/05/17 13:24


====================== System PROM revisions =======================
Version
------------------------------------------------------------
OBP 4.33.0.b 2011/05/16 16:28

Chassis Serial Number
---------------------
<redacted>

you can disable a component from the ilom... it's easy from the webinterpace. from inside solaris you can use the "psradm" command to disable cpu's.
but why not change the MB with a call at oracle (if you've a service contract)?

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