CALL, CLKC, EMS, EXT, I/O, MCH, RST, and SS trace entries

The following trace entries represent an interruption:

Five of the entries represent external interruptions:
- A CALL trace entry is for an external call
- A CLKC trace entry is for a clock comparator
- An EMS trace entry is for an emergency signal
- An EXT trace entry is for a general external interruption
- An SS trace entry is for a service signal
An I/O trace entry is for an I/O interruption
An MCH trace entry is for a machine check
An RST trace entry is for a restart

PR ASID   WU-ADDR  IDENT CD/D PSW----- ADDRESS- UNIQUE-1 UNIQUE-2 UNIQUE-3  PSACLHS-  PSALOCAL PASD SASD TIMESTAMP-RECORD  CP
                                                UNIQUE-4 UNIQUE-5 UNIQUE-6  PSACLHSE-

pr home tcb-addr  CALL      ext-old- psw-----  psaeepsw pccarph            psaclhs-  psalocal pasd sasd timestamp-------  06
                                                                           psaclhse-

pr home tcb-addr  CLKC      ext-old- pswaddr-- psaeepsw tge-tcb- tge-asid  psaclhs-  psalocal pasd sasd timestamp-------  06
                            ext-old- pswctrl--                             psaclhse-

pr home tcb-addr  EMS       ext-old- pswaddr-- psaeepsw pccaemsi pccaemsp  psaclhs- psalocal pasd sasd timestamp-------  06
                            ext-old- pswctrl--                             pccaemse

pr home tcb-addr  EXT  code ext-old- pswaddr-- psaeepsw                    psaclhs-  psalocal pasd sasd timestamp-------  06
                            ext-old- pswctrl--                             psaclhse-

pr home tcb-addr  I/O   dev i/o-old- pswaddr-- flg-ctl- ccw-addr dvch-cnt  psaclhs-  psalocal pasd sasd timestamp-------  06
                        dev i/o-old- pswctrl--                             ucb-addr ext-stat  psaclhse-

pr home tcb-addr *MCH       mch-old- pswaddr--  machine- chk-code psasuper  psaclhs-  psalocal pasd sasd timestamp-------  06
                            mch-old- pswctrl--                              psaclhse-

pr home tcb-addr *RST       rst-old- pswaddr--  gpr15--- gpr0---- gpr1----  psaclhs- psalocal pasd sasd timestamp-------  06
                            rst-old- pswctrl--  psasuper psamodew

pr home tcb-addr  SS        ext-old- pswaddr--  psaeepsw psaeparm msf-bcmd  psaclhs-  psalocal pasd sasd timestamp-------  06
                            ext-old- pswctrl--  flg-brsp mssfasid mssfatcb psaclhse-

PR

pr: Identifier of the processor that produced the TTE.

ASID

home: Home address space identifier (ASID) associated with the TTE.

WU-ADDR

tcb-addr: Address of the task control block (TCB) for the current task or the work element block WEB).

IDENT

The TTE identifier, as follows:

CALL

External call external interruption

CLCK

Clock comparator external interruption

EMS

Emergency signal external interruption

EXT

General external interruption. An asterisk before EXT indicates that the interrupt is a malfunction alert (MFA) or is the result of pressing the External Interrupt key.

I/O

I/O interruption. An asterisk before I/O indicates that one of the following bits in IRBFLAGS field of the interrupt request block (IRB) is ON. The IRBFLAGS field is in the UNIQUE-1 column of the I/O entry.

IRBN for path not operational
IRBSALRT for alert status

MCH

Machine check interruption.

RST

Restart interruption.

SS

Service signal external interruption

CD/D

code: External interruption code
dev: Device number associated with the I/O or, for a co-processor device, the I/O co-processor identifier, for example, ADM

PSW----- ADDRESS-

The z/Architecture® 128-bit PSW address appears on two lines:

pswaddr: Two words, containing the 64-bit address portion of the PSW
pswctrl: Two words, containing the 64-bit "control" portion of the PSW

The PSW represents different data, depending on the type of interrupt that was traced:

ext-old- pswaddr / ext-old- pswctrl: External old program status word (PSW)
i/o-old- pswaddr / i/o-old- pswctrl: I/O old PSW
mch-old- pswaddr / mch-old- pswctrl: Machine check old PSW
rst-old- pswaddr / rst-old- pswctrl: Restart old PSW

UNIQUE-1/UNIQUE-2/UNIQUE-3

UNIQUE-4/UNIQUE-5/UNIQUE-6

ccw-addr: Address of the channel command word (CCW) for the I/O
-cnt: Residual count
dvch: Device status and subchannel status
ext-stat: Extended status word
flg-brsp: Maintenance and service support facility (MSSF) hardware flags and MSSF response code
flg-ctl-: IRBFLAGS field in the IRB and the subchannel control bytes
gpr15--- gpr0---- gpr1----: General registers 15, 0, and 1
machine- chk-code: Machine check interruption code from the FLCMCIC filed in the prefix save area (PSA)
msf-bcmd: Service processor command word
mssfasid: Service processor address space ID
mssfatch: Service processor TCB address
pccaemse: PCCAEMSE field from the physical configuration communication area (PCCA)
pccaemsi: PCCAEMSI field from the PCCA
pccaemsp: PCCAEMSP field from the PCCA
pccarph-: PCCARPB field from the PCCA
psaeepsw: PSAEEPSW field in the PSA. For CALL and EMS, bytes 1 and 2 contain the issuing processor's address. For all entries, bytes 3 and 4 contain the external interruption code.
psaeparm: PSAEPARM field in the PSA, containing the MSSF buffer address
psamodew: PSAMODEW field in the PSA
psasuper: PSASUPER field in the PSA
tge-asid: ASID of the associated timer queue element (TQE)
tge-tcb-: Address in the TCB for the associated TQE, or the TQE address for a system TQE
ucb-addr: Unit control block (UCB) address

PSACLHS-

psaclhs-: String for the current lock held, from the PSACLHS field of the PSA.

PSACLHSE-

psaclhse-: Extended string for the current lock held, from the PSACLHSE field of the PSA.

PSALOCAL

psalocal: Locally locked address space indicator, from the PSALOCAL field of the PSA.

PASD

pasd: Primary ASID (PASID) at trace entry.

SASD

sasd: Secondary ASID (SASID) at trace entry.

TIMESTAMP-RECORD

timestamp-------: Time-of-day (TOD) clock value when system trace created the trace entry. The value is in the same format as the time stamp on the logrec data set records.

CP

The CP column contains 2 hex digits of the processor model dependent information, which is intended to identify the physical CP that made the trace entry. CP is only provided when formatting SYSTRACE under IPCS. CP is not provided for SYSUDUMP, SYSABEND, or SNAP.