The following message is logged in the domain's console or /var/adm/messages file and may result in a system panic:

WARNING: [AFT1] UCC Event on CPU1 in Privileged mode at TL>0, errID 0x0000009e.c2733708 AFSR
0x00100400<PRIV,UCC>.00000015 AFAR 0x00000000.d5557700 Fault_PC 0x102047e8 Esynd 0x0015 
    [AFT1] errID 0x0000009e.c2733708 Data Bit 38 was in error and corrected 
    [AFT2] errID 0x0000009e.c2733708 PA=0x00000000.d5557700 E$tag 0x00000001.aa924924 E$state_4 Modified 
    [AFT2] E$Data (0x00) 0x00000000.00000002 0x00000000.564f4c57 ECC 0x022 
    [AFT2] E$Data (0x10) 0x00000000.ffbef8d8 0x00000000.00100003 ECC 0x01b 
    [AFT2] E$Data (0x20) 0x00000300.01031f28 0x000002a1.00557aec ECC 0x06f 
    [AFT2] E$Data (0x30) 0x000002a1.00556f81 0x00000000.102d05b8 ECC 0x083 
    [AFT2] D$tag 0x000d5557 D$state Valid D$utag 0x55 D$snp 0x000d5556 
    [AFT2] D$Data (0x00) 0x00000000.00000002 0x00000040.564f4c57 
    [AFT2] D$Data (0x10) 0x00000000.ffbef8d8 0x00000000.00100003 
    [AFT2] I$ data not available 
WARNING: [AFT1] WDC Event on CPU1 at TL>0, errID 0x0000009e.c2733708 AFSR 0x00000040<WDC>.00000015 AFAR
0x00000000.d5557700 Fault_PC 0x102047e8 Esynd 0x0015 
    [AFT1] errID 0x0000009e.c2733708 Data Bit 38 was in error and corrected 
    panic[cpu1]/thread=30002b56ae0: [AFT1] errID 0x0000009e.c2733708 UCC WDC Error(s)                   

Explanation:

UltraSPARC[R] III platforms could be susceptible to Correctable Fast ECC (UCC) errors that could cause a system panic resulting in loss of service of the system.

The root cause for this issue is related to the hardware architecture of the UltraSPARC III family, particularly in how the "Fast ECC" trap is handled by software at elevated Trap Levels (TL>0). TL>0 means a trap occurred within another trap handler.

Action:

You should first confirm that patch ID 108528-15 for domains with Solaris 8 is installed. Systems running Solaris 9 are not affected, and pre-Solaris 8 is not supported on these platforms. If the Solaris 8 patch isn't installed, ignore the messages and install the patch. If it is installed, you should investigate a possible hardware failure.

Keywords: UCC, privileged, event

• Comments: joshua.freeman@central
• HAS Team web page
• Refer to FIN I0856-1 for details.
• Reference Infodoc 43642 for UltraSPARC-III and UltraSPARC-IIIplus Systems cpu error messages