OA65928: FSUZ0113 WHILE WRITING TO .ZSH_HISTORY FILE

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• In some cases when the variable HISTFILE is set, the z/OS Z
  shell (/bin/zsh) reports a FSUZ0113 failure indicating it is
  unable to write to the zsh history file (.zsh_history). However,
  the history file is correctly updated, the production of the
  message is in error.
  
  VERIFICATION STEPS:
  To recreate, the user must have zsh shell on z/OS 3.1 and
  perform the following steps:
  1) Create .zsh_history file in
  $HOME
  2) Create .zshrc file specifying:
  export
  HISTFILE=$HOME/.zsh_history
  export HISTSIZE=xxxx
  export
  SAVEHIST=xxxx
  3) log into zsh using zsh l
  4) Optionally enter in
  a command
  5) Exit from zsh session using 'exit' command
  
  ADDITIONAL SYMPTOMS:
  FSUZ0113, EDC5000I, MSGFSUZ0113
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: z/OS users of the USS Zsh shell              *
  ****************************************************************
  * PROBLEM DESCRIPTION: In some cases when the variable         *
  *                      HISTFILE is set, the z/OS Z shell       *
  *                      (/bin/zsh) reports a FSUZ0113 failure   *
  *                      indicating it is unable to write to     *
  *                      the zsh history file (.zsh_history).    *
  *                      However, the history file is correctly  *
  *                      updated, the production of the message  *
  *                      is in error.                            *
  ****************************************************************
  A local variable in the z/OS Z shell (/bin/zsh) is optimized
  out by compiler option -O2. This results in the Z shell being
  unable to evaluate the variable and correctly report successes
  or failures writing the command to the history file
  .zsh_history when HISTFILE is in use.
  

Problem conclusion

• Prevent a local variable in the z/OS Z shell (/bin/zsh) from
  being optimized out by compiler option -O2.
  

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:

  UJ95154

Modules/Macros

• FSUMXZSH
  

Fix information

• Fixed component name

  OPENMVS SHELL/U

• Fixed component ID

  5695SCPX2

Applicable component levels

• R7E0 PSY UJ95154

     UP24/05/08 P F405

Fix is available

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