JR49662: POSSIBLE HANG OR CRASH WHEN EXITING LUA APPLICATION

Communications Server for Windows, Version 6.1.3 -- Latest Fixpack

APAR status

• Closed as program error.

Error description

• Communications Server for Windows
  ---------------------------------
  When an LUA (RUI or SLI) program controlling multiple sessions
  exits or is terminated without closing those sessions cleanly
  (RUI_TERM or SLI_CLOSE), then the application may fail to exit.
  The sessions the program controlled are released and can be used
  by another program. The exiting program does not terminate until
  the CSWIN node is stopped, and may even cause a crash (blue
  screen).
  

Local fix

Problem summary

• The cause is in the event wait code in the API; a one second
  delay is set with the ALTERABLE option enabled. This makes it
  possible for the event to timeout before the termination
  response is returned from the node, causing the termination verb
  to be cleaned up. When the verb later completes, and the node
  tries to post it back to the prgram, it may not get posted back.
  Depending on the timing, it may cause a crash.
  

Problem conclusion

• The event wait code has been changed to be an infinite
  NON-ALTERABLE wait. This forces the cleanup to occur after the
  verb completes, allowing the termination to complete properly.
  

Temporary fix

Comments

APAR Information

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

  JR47510

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

Fix information

• Fixed component name

  COMM SERV NT 6.

• Fixed component ID

  5639F2503

Applicable component levels

• R613 PSY