PI35643: DATA SEQUENCE ERROR WHEN USING Z/VSE FAST PATH TO LINUX ON SYSTEM Z

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• When using z/VSE Fast Path to Linux on System z (LFP) to send
  huge amounts of data from remote to z/VSE, parts of the data may
  arrive on z/VSE in a wrong sequence. This can happen under rare
  circumstances, for example when the IUCV message limit is
  reached due to heavy workload.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All VSE Fast Path to Linux on System z users *
  ****************************************************************
  * PROBLEM DESCRIPTION: When using z/VSE Fast Path to Linux on  *
  *                      System z (LFP) to send huge amounts of  *
  *                      data from remote to z/VSE, parts of the *
  *                      data may arrive on z/VSE in a wrong     *
  *                      sequence. This can happen under rare    *
  *                      circumstances, for example when the     *
  *                      IUCV message limit is reached due to    *
  *                      heavy workload.                         *
  ****************************************************************
  * RECOMMENDATION: Install this PTF.                            *
  ****************************************************************
  Data sequence error when using z/VSE Fast Path to Linux on
  System z
  

Problem conclusion

• The Linux Fast Path Daemon (LFPD) has been corrected to ensure
  the correct data sequence.
  

Temporary fix

• *********
  * HIPER *
  *********
  

Comments

APAR Information

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

  PI35642

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

  UI25399

Modules/Macros

• IJBLFPLX
  

Fix information

• Fixed component name

  VSE CONN. WS CO

• Fixed component ID

  5686CF938

Applicable component levels

• R52P PSY UI25399

     UP15/03/20 I 1000 ¢

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.