IC99486: PCOM: 5250 SESSION SHOWS INPUT INHIBIT WHEN DISPLAYING GRIDLINE DATA

Personal Communications 6.0.12
Personal Communications 6.0.13
Personal Communications 6.0.15

APAR status

• Closed as program error.

Error description

• Personal Communications v6.0.7 5250 connection
  
  When the customer try to display the screen which had gridline,
  the 5250 session is input inhibit status.
  
  It seems that the trace shows i5 sent SOCKET ERROR to PCOM when
  the client sends a lot of inbound data.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All DBCS (double byte character set) 5250    *
  *                 session users                                *
  ****************************************************************
  * PROBLEM DESCRIPTION: Under a DBCS environment, PCOM 5250     *
  *                      display session containing large grid   *
  *                      data may crash when SAVE command is     *
  *                      received.                               *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Under a DBCS environment, IBM Personal Communications 5250
  display session containing large grid data may crash when SAVE
  command is received. The problem could happen irrespective of
  the screen size set.
  
  When the SAVE command is received from the host, the telnet
  module allocates a buffer to save the received data. If the
  size of the data is more than the allocated buffer size,
  internal memory gets corrupted due to buffer overrun. This
  subsequently causes PCSCM.EXE process to terminate abnormally.
  

Problem conclusion

• PCSTLNET.DLL buffer size was increased to ensure that there is
  sufficient space to accommodate large data received from the
  host.
  
  Fix scheduled for PCOM 6.0.12 Refresh Pack
  

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:

Modules/Macros

• PCSTLNET
  

Fix information

• Fixed component name

  PCOMM V5 COMBO-

• Fixed component ID

  5639I700J

Applicable component levels

• R601 PSY

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