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Conference turris::microvax

Title:MicroVAX, VAXstation, VAX 4000 Systems
Moderator:QUARK::LIONEL
Created:Fri Jan 03 1986
Last Modified:Fri May 30 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4370
Total number of notes:18956

4352.0. "VAX 4000-700 and Trans. Buffer Parity errors." by SIOG::KILROY () Wed Mar 05 1997 06:06

    Hello,
    		I am investigating the following non fatal SSRVEXCEPT
    on a VAX4000-700. The TBSTS register reports a TB parity error,
    but there are no machine check enteries in the errorlog.
    Is the TB parity error a real error?
    
    Regards,
    
    
    John Kilroy.
    
    
     NON-FATAL BUGCHECK  KA692-AA  CPU Microcode Rev # 2.  CONSOLE FW REV#
    2.4
                          Standard Microcode Patch    Patch Rev # 1.
    
     SSRVEXCEPT, Unexpected system service exception
    
           PROCESS NAME    ERRFMT
    
           PROCESS ID      00010009
    
           ERROR PC        81778FF7
           ERROR PSL       01C00000
                                           INTERRUPT PRIORITY LEVEL = 00.
                                           PREVIOUS MODE = USER
                                           CURRENT MODE = EXECUTIVE
                                           FIRST PART DONE CLEAR
    
     STACK POINTERS
    
     KSP 7FFE77B4  ESP 7FFE975C  SSP 7FFED800  USP 7FECF564  ISP 84FD3600
    
     GENERAL REGISTERS
    
     R0  01C00009  R1  7FFE9798  R2  00000E00  R3  7FEFF718  R4  7FEFF600
     R5  7FFDFE94  R6  00000002  R7  00000003  R8  7FECF5E0  R9  7FEFF608
     R10 00000000  R11 7FFDFE70  AP  7FFE9774  FP  7FFE975C  SP  7FFE77F8
    
     KA692 REGISTER SUBPACKET
    
           TODR            0000FFFF
           BPCR            FFFF0000
           PAMODE          01F5FFFF
                                           32 BIT PHYSICAL ADDRESS MODE
                                           MUST BE ZERO FIELD NON-ZERO
           MMEPTE          00010047
                                           memory management exception PTE
           MMESTS          6A008328
                                           MUST BE ZERO FIELD NON-ZERO
    <13:03
                                           TNV fault
                                           MUST BE ZERO FIELD NON-ZERO
    <25:16
                                           VALID IBOX SPECIFIER STORED
           PCSCR           01000002
                                           MUST BE ZERO FIELD NON-ZERO
                                           Patchable control store disabled
                                           standard microcode patch
                                           CPU microcode Patch Rev # = 1.
           ICSR            06B40100
                                           virtual instruction cache
    disabled
           ECR             3D440002
                                           SUBSET INTERVAL TIMER ENABLED
                                           PERFORMANCE MONITR FEEDBACK TEST
    ENABLE
                                           FBOX STAGE 4 BYPASS DISABLED
                                           MUST BE ZERO FIELD NON-ZERO
           TBSTS           00000003
                                  ^        LOCK SET
                           ----------->    TRANSLATION BUFFER DATA PARITY
    ERROR
                                           em_latch invalid
                                           s5 command  = 00(X)
                                           valid Ebox reference error
    stored
           PCCTL           00000000
                                           pcache disabled for D-stream
    reference
                                           pcache disabled for I-stream
    reference
                                           PCACHE PARITY ERROR DETECTION
    DISABLED
                                            MUST BE ONE FIELD NON-ONE
           PCSTS           00000000
           CCTL            00000000
                                           backup cache disabled
                                           bcache tag ram speed:
                                           READ = 3 CYCLES, WRITE = 3
    CYCLES
                                           bcache data ram speed:
                                           READ = 2 CYCLES, WRITE = 3
    CYCLES
                                           128 kilobyte backup cache
           BCEDSTS         00000000
           MESR            00000000
           MMCDSR          00000000
                                           2600 cycles before disown write
    tmeout
                                           disable logging soft errors
                                           CQBIC on CP_I02
           CESR            00000000
           CMCDSR          00000000
                                           IO2 ID NOT ENABLED
                                           DMA PREFETCHING DISABLED
                                           3200 Cycles Before NDAL Timeout
                                           144 cycles before cp1 mt timeout
                                           144 CYCLES BEFORE CP2 MT TIMEOUT
                                           cp1 interrupts pending:
                                           none
                                           cp2 interrupts pending:
    
    
    
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