PI07633: In DISASSEMBLY mode and issue STEP while stopped at an SVC instruction, Debug Tool does not stop at the next statement.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• If a Debug Tool user is in DISASSEMBLY mode and issues STEP
  while stopped at an SVC instruction, Debug Tool does not stop
  at the next statement (i.e., it acts as if GO was entered).
  

Local fix

• Two work arounds suggested:
  1 In disassembly mode, set a breakpoint after the SVC 8 before
  issuing the STEP command.
  2 Debug in assembler mode using EQALANGX.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Debug Tool 11.1 users who use disassembly    *
  *                 mode.                                        *
  ****************************************************************
  * PROBLEM DESCRIPTION: If a Debug Tool user is in DISASSEMBLY  *
  *                      mode and issues STEP while stopped at   *
  *                      an SVC instruction, Debug Tool does     *
  *                      not stop at the next statement (i.e.,   *
  *                      it acts as if GO was entered).          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Problem stepping in disassembly mode when stopped at an SVC
  instruction.
  

Problem conclusion

• Problem resolved.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UI15508

Modules/Macros

• EQA00ABE EQA00AEI EQA00ANC EQA00BKP EQA00CEE EQA00CEM EQA00CHG
  EQA00CIC EQA00CND EQA00CVT EQA00DBG EQA00DBH EQA00DBI EQA00DEI
  EQA00DTA EQA00DTL EQA00DU  EQA00EH2 EQA00EHB EQA00EHI EQA00EMG
  EQA00EVH EQA00GIV EQA00GTO EQA00HKS EQA00LIS EQA00LLF EQA00LST
  EQA00MEM EQA00NML EQA00NMU EQA00OEI EQA00OHC EQA00OHE EQA00OHH
  EQA00OHI EQA00OHL EQA00OHT EQA00PBK EQA00REG EQA00RES EQA00SVC
  EQA00TMM EQA00TMX EQA01SV2 EQA0AIP2 EQA0CINF EQA0SCHG EQA0SCL1
  EQA0SCL2 EQA0SDBI EQA0SDU  EQA0SRGU EQA0SRP1 EQA0SRP2 EQA10PRC
  EQA80OHH EQA80VER EQAAFSPS EQADCCN0 EQALMA   EQANCABE EQANCFRM
  EQANCHAB EQANCLDE EQANCREL EQANCTER EQANMDBG EQANMEST EQAYSMMN
  

Fix information

• Fixed component name

  DEBUG TOOL Z/OS

• Fixed component ID

  5655W4500

Applicable component levels

• RB10 PSY UI15508

     UP14/03/05 P F403

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.