IV27337: ASSERT IN IOCP_INSQUEUE APPLIES TO AIX 6100-06

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• This problem only happens with applications using IOCP.
  It has primarily been seen with Lotus Domino Server.
  .
  In certain timing, when the application is sending data
  and the server abruptly closes the connection, the system
  can crash.
  .
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:
  * Users of IOCP running the 6100-06 Technology Level with the
  * bos.iocp.rte fileset at the levels of 6.1.6.18 or 6.1.6.19.
  ****************************************************************
  * PROBLEM DESCRIPTION:
  * In certain timing, when the application is sending data
  * and the server abruptly closes the connection, the system
  * can crash.
  *
  * This problem only happens with applications using IOCP.
  * It has primarily been seen with Lotus Domino Server.
  * The system crashes with the following stack:
  *
  *  F1000000C0277534 iocp.ext:iocp_insque+000014
  * (F1000E000577D0E0, F1000000C0280A08  ?? )
  *  F1000000C0275470 iocp.ext:iocp_process_pending_io+000270
  *  F1000000C0277C70 iocp.ext:iocp_isr+000070 ()
  *  00014D70 .hkey_legacy_gate+00004C ()
  *  004A11B8 Netintr+0002F8 ()
  *  004A0E80 netisr_thread+000020 ()
  *  00255654 threadentry+000094 (??, ??, ??, ??)
  ****************************************************************
  * RECOMMENDATION:
  * Install APAR IV27337.
  * Prior to APAR availability, an interim can be obtained from:
  * ftp://public.dhe.ibm.com/aix/ifixes/iv27337/
  ****************************************************************
  

Problem conclusion

• Added a check in the IOCP code to avoid the assert.
  

Temporary fix

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

Comments

APAR Information

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

  IV24569

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

Fix information

• Fixed component name

  AIX 610 STD EDI

• Fixed component ID

  5765G6200

Applicable component levels

• R610 PSY U854478

     UP12/12/05 I 1000 ®

PTF to Fileset Mapping

• U854478 bos.iocp.rte 6.1.6.20