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HP OpenVMS Systems Documentation

HP OpenVMS System Analysis Tools Manual

SHOW CPU

When analyzing a dump, displays information about the state of a CPU at the time of the system failure.
SHOW CPU is only valid when you are analyzing a crash dump. It is not a valid command when you are analyzing the running system, because all the CPU-specific information may not be available. If invoked when you are analyzing a running system, SHOW CPU will only list the CPU database address(es) for the specified CPU or all CPUs.

Format

SHOW CPU [cpu-id]

Parameter

cpu-id
Numeric value from 00 to 1F₁₆ indicating the identity of the CPU for which context information is to be displayed. If you specify a value outside this range, or you specify the cpu-id of a CPU that was not active at the time of the system failure, SDA displays the following message:
%SDA-E-CPUNOTVLD, CPU not booted or CPU number out of range
If you use the cpu-id parameter, the SHOW CPU command performs an implicit SET CPU command, making the CPU indicated by cpu-id the current CPU for subsequent SDA commands. (See the description of the SET CPU command and Section 2.5 for information on how this can affect the CPU context---and process context---in which SDA commands execute.)

Qualifiers

None.

Description

The SHOW CPU command displays system failure information about the CPU specified by cpu-id or, by default, the SDA current CPU, as defined in Section 2.5.
The SHOW CPU command produces several displays. The first display is a brief description of the system failure and its environment that includes the following:
Reason for the bugcheck.
Name of the currently executing process. If no process has been scheduled on this CPU, SDA displays the following message:
Process currently executing: no processes currently scheduled on the processor
File specification of the image executing within the current process (if there is a current process).
Interrupt priority level (IPL) of the CPU at the time of the system failure.
The CPU database address.
The CPU's capability set.
On Alpha, the register display follows. First the general registers are output, showing the contents of the CPU's integer registers (R0 to R30), and the AI, RA, PV, FP, PC, and PS at the time of the system failure.
The Alpha processor registers display consists of the following parts:

Common processor registers
Processor-specific registers
Stack pointers

The first part of the processor registers display includes registers common to all Alpha processors, which are used by the operating system to maintain the current process virtual address space, system space, or other system functions. This part of the display includes the following registers:

Hardware privileged context block base register (PCBB)
System control block base register (SCBB)
Software interrupt summary register (SISR)
Address space number register (ASN)
AST summary register (ASTSR)
AST enable register (ASTEN)
Interrupt priority level register (IPL)
Processor priority level register (PRBR)
Page table base register (PTBR)
Virtual page table base register (VPTB)
Floating-point control register (FPCR)
Machine check error summary register (MCES)

On I64, the register display is in the form of the contents of the exception frame generated by the bugcheck. See SHOW CRASH for more details.
The last part of the display includes the four stack pointers: the pointers of the kernel, executive, supervisor, and user stacks (KSP, ESP, SSP, and USP, respectively). In addition, on I64, the four register stack pointers are displayed: KBSP, EBSP, SBSP, UBSP.
The SHOW CPU command concludes with a listing of the spinlocks, if any, owned by the CPU at the time of the system failure, reproducing some of the information given by the SHOW SPINLOCKS command. The spinlock display includes the following information:

Name of the spinlock.
Address of the spinlock data structure (SPL).
The owning CPU's CPU ID.
IPL of the spinlock.
Indication of the depth of this CPU's ownership of the spinlock. A number greater than 1 indicates that this CPU has nested acquisitions of the spinlock.
Rank of the spinlock.
Timeout interval for spinlock acquisition (in terms of 10 milliseconds).
Shared array (shared spinlock context block pointers)

Example

SDA> SHOW CPU 0
CPU 00 Processor crash information
----------------------------------
CPU 00 reason for Bugcheck: CPUEXIT, Shutdown requested by another CPU

Process currently executing on this CPU:   None

Current IPL: 31  (decimal)

CPU database address:  81414000

CPUs Capabilities:    PRIMARY,QUORUM,RUN

General registers:

R0   = FFFFFFFF.81414000  R1   = FFFFFFFF.81414000  R2   = 00000000.00000000
R3   = FFFFFFFF.810AD960  R4   = 00000000.01668E90  R5   = 00000000.00000001
R6   = 66666666.66666666  R7   = 77777777.77777777  R8   = FFFFFFFF.814FB040
R9   = 99999999.99999999  R10  = FFFFFFFF.814FB0C0  R11  = BBBBBBBB.BBBBBBBB
R12  = CCCCCCCC.CCCCCCCC  R13  = FFFFFFFF.810AD960  R14  = FFFFFFFF.81414018
R15  = 00000000.00000004  R16  = 00000000.000006AC  R17  = 00000000.00000047
R18  = 00000000.00000000  R19  = 00000000.00000000  R20  = FFFFFFFF.8051A494
R21  = 00000000.00000000  R22  = 00000000.00000001  R23  = 00000000.00000010
R24  = FFFFFFFF.81414000  AI   = FFFFFFFF.81414000  RA   = FFFFFFFF.81006000
PV   = 00000001.FFFFFFFF  R28  = 00000000.00000000  FP   = FFFFFFFF.88ABDFD0
PC   = FFFFFFFF.8009C95C  PS   = 18000000.00001F04

Processor Internal Registers:

ASN  = 00000000.00000000                     ASTSR/ASTEN =          00000000
IPL  =          0000001F  PCBB = 00000000.01014080  PRBR = FFFFFFFF.81414000
PTBR = 00000000.0000FFBF  SCBB = 00000000.000001E8  SISR = 00000000.00000100
VPTB = FFFFFEFC.00000000  FPCR = 00000000.00000000  MCES = 00000000.00000000

        KSP    = FFFFFFFF.88ABDCD8
        ESP    = FFFFFFFF.88ABF000
        SSP    = FFFFFFFF.88AB9000
        USP    = FFFFFFFF.88AB9000

                Spinlocks currently owned by CPU 00

SCS                                    Address        810AF300
Owner CPU ID       00000000            IPL            00000008
Ownership Depth    00000000            Rank           0000001A
Timeout Interval   002DC6C0            Share Array    00000000

This example shows the default output of the SHOW CPU command on an Alpha system.

SHOW CRASH

Displays information about the state of the system at the time of failure. Provides system information identifying a running system and can display exception information.

Format

SHOW CRASH [/CPU=n]

Parameters

None.

Qualifier

/CPU=n
Allows exception data to be displayed from CPUs other than the one considered as the crash CPU when more than one CPU crashes simultaneously.

Description

The SHOW CRASH command has two different functions, depending on whether you use it to analyze a running system or a system failure.
When used during the analysis of a running system, the SHOW CRASH command produces a display that describes the system and the version of OpenVMS that it is running. The system crash information display contains the following information:

Name and version number of the operating system
Major and minor IDs of the operating system
Identity of the OpenVMS system, including an indication of its cluster membership
CPU ID of the primary CPU
Address of all CPU databases

When used during the analysis of a system failure, the SHOW CRASH command produces several displays that identify the system and describe its state at the time of the failure.
If the current CPU context for SDA is not that of the processor that signaled the bugcheck, or the CPU specified with the /CPU=n qualifier, the SHOW CRASH command first performs an implicit SET CPU command to make that processor the current CPU for SDA. (See the description of the SET CPU command and Section 2.5 for a discussion of how this can affect the CPU context---and process context---in which SDA commands execute.)
The system crash information display in this context provides the following information:
Date and time of the system failure.
Name and version number of the operating system.
Major and minor IDs of the operating system.
Identity of the system.
CPU IDs of both the primary CPU and the CPU that initiated the bugcheck. In a uniprocessor system, these IDs are identical.
Bitmask of the active and available CPUs in the system.
For each active processor in the system, the address of its CPU database and the name of the bugcheck that caused the system failure. Generally, there will be only one significant bugcheck in the system. All other processors typically display the following as their reason for taking a bugcheck:
CPUEXIT, Shutdown requested by another CPU
Subsequent screens of the SHOW CRASH command display information about the state of each active processor on the system at the time of the system failure. The information in these screens is identical to that produced by the SHOW CPU command, including the registers (Alpha), exception frame (I64), stack pointers, and records of spinlock ownership. The first such screen presents information about the processor that caused the failure; others follow according to the numeric order of their CPU IDs. For the processor that caused the failure, if an exception bugcheck (INVEXCEPTN, SSRVEXCEPT, FATALEXCEPT, UNXSIGNAL) or, for I64 only, also a KRNLSTAKNV or DEBUGCRASH bugcheck has occurred, SHOW CRASH first displays the exception frame from the original exception.
SHOW CRASH displays the original exception in process dumps, and additionally displays all CPU database addresses in system dumps.

Examples

SDA> SHOW CRASH
Version of system: OpenVMS (TM) Alpha Operating System, Version X901-SSB

System Version Major ID/Minor ID: 3/0

VMScluster node: VMSTS6, a

Crash CPU ID/Primary CPU ID:  00/00

Bitmask of CPUs active/available:  00000001/00000001

CPU bugcheck codes:
        CPU 00 -- INVEXCEPTN, Exception while above ASTDEL

System State at Time of Exception
---------------------------------
Exception Frame:
----------------
        R2  = FFFFFFFF.810416C0  SCS$GA_LOCALSB+005C0
        R3  = FFFFFFFF.81007E60  EXE$GPL_HWRPB_L
        R4  = FFFFFFFF.850AEB80
        R5  = FFFFFFFF.81041330  SCS$GA_LOCALSB+00230
        R6  = FFFFFFFF.81038868  CON$INITLINE
        R7  = FFFFFFFF.81041330  SCS$GA_LOCALSB+00230
        PC  = FFFFFFFF.803EF81C  SYS$TTDRIVER+0F81C
        PS  = 30000000.00001F04

         FFFFFFFF.803EF80C:     STL             R24,#X0060(R5)
         FFFFFFFF.803EF810:     LDL             R28,#X0138(R5)
         FFFFFFFF.803EF814:     BIC             R28,R27,R28
         FFFFFFFF.803EF818:    00000138
   PC => FFFFFFFF.803EF81C:     HALT
         FFFFFFFF.803EF820:     HALT
         FFFFFFFF.803EF824:     BR              R31,#XFF0000
         FFFFFFFF.803EF828:     LDL             R24,#X0138(R5)
         FFFFFFFF.803EF82C:     BIC             R24,#X40,R24

   PS =>
         MBZ SPAL      MBZ    IPL VMM MBZ CURMOD INT PRVMOD de
           0   30   00000000000 1F  0   0   KERN   1   KERN

Signal Array
------------
        Length = 00000003
        Type   = 0000043C
        Arg    = FFFFFFFF.803EF81C  SYS$TTDRIVER+0F81C
        Arg    = 30000000.00001F04
%SYSTEM-F-OPCDEC, opcode reserved to Digital fault at PC=FFFFFFFF803EF81C, PS=00001F04

Saved Scratch Registers in Mechanism Array
------------------------------------------
R0   = 00000000.00000000  R1   = FFFFFFFF.811998B8  R16  = 00000000.00001000
R17  = FFFFFFFF.8119B1F0  R18  = 00000000.00000010  R19  = FFFFFFFF.810194F0
R20  = 00000000.00000000  R21  = 0000000F.00000000  R22  = 00000000.00000000
R23  = 00000000.00004000  R24  = 00000000.00001000  R25  = 00000000.00000000
R26  = FFFFFFFF.81041474  R27  = 00000000.00004000  R28  = 00000000.00001000

   .
   .
   .
                           (CPU-specific display omitted)
   .
   .
   .

This long display reflects the output of the SHOW CRASH command within the analysis of a system failure on an OpenVMS Alpha system.

SDA> SHOW CRASH
System crash information
------------------------
Time of system crash: 12-OCT-2000 11:27:58.02

Version of system: OpenVMS (TM) Alpha Operating System, Version X74B-FT2

System Version Major ID/Minor ID: 3/0

System type: DEC 3000 Model 400

Crash CPU ID/Primary CPU ID:  00/00

Bitmask of CPUs active/available:  00000001/00000001

CPU bugcheck codes:
        CPU 00 -- PGFIPLHI, Pagefault with IPL too high

System State at Time of Page Fault:
-----------------------------------

Page fault for address 00000000.00046000 occurred at IPL: 8
Memory management flags: 00000000.00000001 (instruction fetch)

Exception Frame:
----------------
        R2  = 00000000.00000003
        R3  = FFFFFFFF.810B9280  EXCEPTION_MON+39C80
        R4  = FFFFFFFF.81564540  PCB
        R5  = 00000000.00000088
        R6  = 00000000.000458B0
        R7  = 00000000.7FFA1FC0
        PC  = 00000000.00046000
        PS  = 20000000.00000803

         00000000.00045FF0:     LDQ             R2,#X0050(FP)
         00000000.00045FF4:     LDQ             R12,#X0058(FP)
         00000000.00045FF8:     LDQ             R13,#X0060(FP)
         00000000.00045FFC:     LDQ             R14,#X0068(FP)
   PC => 00000000.00046000:     BIS             R1,R17,R1
         00000000.00046004:     BIS             R31,#X01,R25
         00000000.00046008:     STQ_U           R1,#X0002(R10)
         00000000.0004600C:     BSR             R26,#X00738C
         00000000.00046010:     LDQ_U           R16,#X0002(R10)

   PS =>
         MBZ SPAL      MBZ    IPL VMM MBZ CURMOD INT PRVMOD de
          0   20   00000000000 08  0   0   KERN   0   USER

   .
   .
   .
                                        (CPU-specific display omitted)
   .
   .
   .

This display reflects the output of a SHOW CRASH command within the analysis of a PGFIPLHI bugcheck on an OpenVMS Alpha system.

SDA> SHOW CRASH
System crash information
------------------------

Time of system crash:  1-DEC-2003 13:31:10.50


Version of system: OpenVMS I64 Operating System, Version XA2T-J2S

System Version Major ID/Minor ID: 3/0


System type: HP rx2600  (900MHz/1.5MB)

Crash CPU ID/Primary CPU ID:  01/00

Bitmask of CPUs active/available:  00000003/00000003


CPU bugcheck codes:
        CPU 01 -- database address 8396DD80 -- SSRVEXCEPT, Unexpected system se

        1 other -- CPUEXIT, Shutdown requested by another CPU
                CPU 00 -- database address 83864000



System State at Time of Original Exception
------------------------------------------

Exception Frame at 00000000.7FF43BD0
------------------------------------

 IPL             =                 00
 TRAP_TYPE       =           00000008 Access control violation fault
 IVT_OFFSET      =           00000800 Data TLB Fault
 IIP             =  00000000.00020120 SYS$K_VERSION_08+00100
 IIPA            =  00000000.00020110 SYS$K_VERSION_08+000F0
 IFA             =  00000000.00000000

 IPSR            =  00001010.0A0A6010

                    RT  TB  LP  DB  SI  DI  PP  SP  DFH DFL DT  PK  I   IC  MFH MFL AC  BE  UP
                    1   0   1   0   0   0   0   0   1   0   1   0   1   1   0   1   0   0   0
                    IA  BN  ED  RI  SS  DD  DA  ID  IT  MC  IS  CPL
                    0   1   0   0   0   0   0   0   1   0   0   0

 PREVSTACK       =                 00
 BSP             =  00000000.7FF12240
 BSPSTORE        =  00000000.7FF120C0
 BSPBASE         =  00000000.7FF120C0
 RNAT            =  00000000.00000000

 RSC             =  00000000.00000003 LOADRS   BE   PL   MODE
                                      0000     0    0    Eager

 PFS             =  00000000.00000B9F

                    PPL    PEC    RRB.PR   RRB.FR   RRB.GR     SOR       SOL           SOF
                    0       0.       0.       0.       0.       0.    23. (32-54)   31. (32-62)

 FLAGS           =                 00
 STKALIGN        =           000002D0
 PREDS           =  00000000.FF562AA3
 IHA             =  FFFFFFFF.7FF3E120
 INTERRUPT_DEPTH =                 00

 ISR             =  00000804.00000000


                    ED  EI  SO  NI  IR  RS  SP  NA  R   W   X   CODE
                    1   0   0   0   0   0   0   0   1   0   0   0000


 ITIR            =  00000000.FFFF0934 KEY       PS
                                      FFFF09    0D

 IFS             =  80000000.00000593


                    Valid         RRB.PR   RRB.FR   RRB.GR     SOR       SOL           SOF
                    1                0.       0.       0.       0.    11. (32-42)   19. (32-50)


 B0              =  FFFFFFFF.80241AE0 AMAC$EMUL_CALL_NATIVE_C+00340
 B1              =  80000000.FFD643B0
 B2              =  00000000.00000000
 B3              =  00000000.00000000
 B4              =  00000000.00000000
 B5              =  00000000.7FF43E38
 B6              =  00000000.00020110 SYS$K_VERSION_08+000F0
 B7              =  FFFFFFFF.80A28170 NSA$CHECK_PRIVILEGE_C

 GP              =  00000000.00240000
 R2              =  FFFFFFFF.839B8098 PSB+00058
 R3              =  E0000000.00000068
 R4              =  FFFFFFFF.839731C0 PCB
 R5              =  00000000.00000008
 R6              =  00000000.7FF43F40
 R7              =  00000000.00000002
 R8              =  00000000.00010000 SYS$K_VERSION_07
 R9              =  00000000.00000020
 R10             =  00000000.0000003E
 R11             =  00000000.00000001

 KSP             =  00000000.7FF43EA0

 R13             =  00000000.00000000
 R14             =  00000000.00040008 UCB$M_SUPMVMSG+00008
 R15             =  00000000.00020110 SYS$K_VERSION_08+000F0
 R16             =  FFFFFFFF.802417A0 AMAC$EMUL_CALL_NATIVE_C
 R17             =  00000000.00010004 UCB$M_DELETEUCB+00004
 R18             =  00000000.00040000 UCB$M_CHAN_TEAR_DOWN
 R19             =  00000000.00040000 UCB$M_CHAN_TEAR_DOWN
 R20             =  00000000.7FF43F38
 R21             =  00000000.7FF43F80
 R22             =  00000000.00040000 UCB$M_CHAN_TEAR_DOWN
 R23             =  00000000.00000000
 R24             =  00000000.00000000
 R25             =  00000000.00000000
 R26             =  00000000.00000000
 R27             =  00000000.FF565663
 R28             =  00000000.00000003
 R29             =  00000000.7FF43EA0
 R30             =  000007FD.C0000300
 R31             =  FFFFFFFF.806549D0 PROCESS_MANAGEMENT_MON+677D0

 R32             =  00000000.7AC9DBC0
 R33             =  00000000.00000001
 R34             =  00000000.7FFCF88C MMG$IMGHDRBUF+0008C
 R35             =  FFFFFFFF.83973528 ARB+00230
 R36             =  00000000.00000000
 R37             =  00000000.00000000
 R38             =  FFFFFFFF.80A28410 NSA$CHECK_PRIVILEGE_C+002A0
 R39             =  00000000.00000915
 R40             =  FFFFFFFF.82D01640 SYSTEM_PRIMITIVES+00221440
 R41             =  00000000.00000B9F
 R42             =  00000000.7FF43EA0

 R43/OUT0        =  00000000.7FFCF87C MMG$IMGHDRBUF+0007C
 R44/OUT1        =  E0000000.00000068
 R45/OUT2        =  00000000.00000000
 R46/OUT3        =  00000000.FF561663
 R47/OUT4        =  00000000.7FFCDA68 CTL$AG_CLIDATA
 R48/OUT5        =  00000000.7FFCDBE8 CTL$AG_CLIDATA+00180
 R49/OUT6        =  00000000.00000003
 R50/OUT7        =  FFFFFFFF.839731C0 PCB

 NATMASK         =               003A
 NATS            =  00000000.00000000
 CSD             =  CFFFFFFF.00000000
 SSD             =  CCCC0BAD.BAD0CCCC
 LC              =  00000000.00000000
 EC              =  00000000.00000000

 FPSR            =  0009804C.0270033F SF3    SF2    SF1    SF0    TRAPS
                                      004C   004C   004E   000C   3F

 F6              =  0FFC9.C0000000.00000000
 F7              =  1003E.00000000.00000018
 F8              =  1000B.FF000000.00000000
 F9              =  10007.A8000000.00000000
 F10             =  10003.C2492492.49249249
 F11             =  0FFF6.C30C30C3.0C30C30C

 PPREVMODE        =                 03

Instruction Stream:
-------------------
                                    { .mfb
         SYS$K_VERSION_08+000E0:                nop.m       000000
                                                nop.f       000000
                                                br.ret.sptk.many b0 ;;
                                    }
                                    { .mii
         SYS$K_VERSION_08+000F0:                alloc       r41 = ar.pfs,  0B, 08, 00
                                                mov         r29 = r12
                                                mov         r42 = r12
                                    }
                                    { .mmi
   PC => SYS$K_VERSION_08+00100:                ld4         r24 = [r0] ;;
                                                nop.m       000000
                                                sxt4        r24 = r24 ;;
                                    }
                                    { .mii
         SYS$K_VERSION_08+00110:                nop.m       000000

                                                sxt4        r14 = r24 ;;
                                                cmp.eq      p6, p7 = r14, r0
                                    }
                                    { .mfb
         SYS$K_VERSION_08+00120:                nop.m       000000
                                                nop.f       000000
                                           (p6) br.cond.dpnt.few 0000060
                                    }

Signal Array
------------
        Length = 00000005
        Type   = 0000000C
        Arg    = 00000000.00000000
        Arg    = 00000000.00000000
        Arg    = 00000000.00020120
        Arg    = 00000000.00000003
%SYSTEM-F-ACCVIO, access violation, reason mask=00, virtual address=0000000000000000,
                                                    PC=0000000000020120, PS=00000003


CPU 01 Processor state at time of SSRVEXCEPT bugcheck

-----------------------------------------------------


CPU 01 reason for Bugcheck: SSRVEXCEPT, Unexpected system service exception


Process currently executing on this CPU: SYSTEM


Current image file: IPFEX3$DKB200:[SYS0.][SYSMGR]X.EXE;2


Current IPL: 0  (decimal)


CPU database address: 8396DD80


CPUs Capabilities:    QUORUM,RUN


Exception Frame at 00000000.7FF435B0
------------------------------------

    IPL              =                 00
    TRAP_TYPE        =           00000041      Bugcheck Breakpoint Trap
    IVT_OFFSET       =           00002C00      Break Instruction
    IIP              =  FFFFFFFF.80491E90      EXCEPTION_MON+5E690
    IIPA             =  FFFFFFFF.80491E80      EXCEPTION_MON+5E680
    IFA              =  00000000.00030000      SYS$K_VERSION_01

.
.
.

    IIM              =  00000000.00100002      BREAK$C_SYS_BUGCHECK

    PPREVMODE        =                 00

    KR0              =  00000000.00000000
    KR1              =  00000000.00000000
    KR2              =  00000000.00000000
    KR3              =  00000000.00000003
    KR4              =  00000000.00000000
    KR5 (Next Timer) =  000000BC.DEA95C24
    KR6 (CPUdb VA)   =  FFFFFFFF.8396DD80
    KR7 (Slot VA)    =  FFFFFFFF.86910000

    KSP              =  00000000.7FF43880
    ESP              =  00000000.7FF68000
    SSP              =  00000000.7FFAC000
    USP              =  00000000.7AC9DB60

                No spinlocks currently owned by CPU 01



CPU 00 Processor state at time of CPUEXIT bugcheck
--------------------------------------------------


CPU 00 reason for Bugcheck: CPUEXIT, Shutdown requested by another CPU


Process currently executing on this CPU:   None

Current IPL: 31  (decimal)


CPU database address: 83864000


CPUs Capabilities:    PRIMARY,QUORUM,RUN


Exception Frame at FFFFFFFF.8696F9F0
------------------------------------

    IPL              =                 1F
    TRAP_TYPE        =           00000041      Bugcheck Breakpoint Trap
    IVT_OFFSET       =           00002C00      Break Instruction
    IIP              =  FFFFFFFF.802F62F0      SYSTEM_SYNCHRONIZATION+43BF0
    IIPA             =  FFFFFFFF.802F62F0      SYSTEM_SYNCHRONIZATION+43BF0
    IFA              =  FFFFFFFF.86A280C0

.
.
.

    IIM              =  00000000.00100002      BREAK$C_SYS_BUGCHECK

    PPREVMODE        =                 00

    KR0              =  00000000.203D0000
    KR1              =  00000000.60000000
    KR2              =  00000000.00000000
    KR3              =  00000000.0001001F
    KR4              =  00000000.00000000
    KR5 (Next Timer) =  000000C4.FDFE03C8
    KR6 (CPUdb VA)   =  FFFFFFFF.83864000
    KR7 (Slot VA)    =  FFFFFFFF.8690F000

    KSP              =  FFFFFFFF.8696FCC0
    ESP              =  FFFFFFFF.86971000
    SSP              =  FFFFFFFF.86957000
    USP              =  FFFFFFFF.86957000

                No spinlocks currently owned by CPU 00

This example from an OpenVMS I64 system shows summary information on the crash: the time it occurred, its OpenVMS version, hardware type, and bugcheck codes. This is followed by the exception frame from the exception that triggered the crash, the instruction stream active at the time of the exception, and the signal array that describes the exception. The exception frame from the bugcheck triggered by the original exception is then displayed (that is, the bugcheck on the crash CPU) followed by the bugcheck exception frame for the other CPU in the system.

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