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MF45906 - LIC-COMM-TCPIP Deadlock starting interface shared with servi

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PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC-COMM-TCPIP Deadlock starting interface shared with servi


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED      PTF/FIX  LEVEL

TYPE PROGRAM  REL  NUMBER   MIN/MAX  OPTION
---- -------- ---  -------  -------  ------
CO   5761999  610  MF44147   00/00    0000



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-------
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APAR Error Description / Circumvention

-----------------------------------------------
Deadlock may occur when starting an interface on a line that is
shared with the service stack. TONAMTASK has IPMAIN seized
exclusively and is waiting on QuBaseWhenDone. TOISBRIDGE will be
blocked waiting for a shared seize of IPMAIN.

CORRECTION FOR APAR MA37330 :
-----------------------------
When the TCP/IP interface is started, the service stack briefly
ends its interface and then restarts the interface. During the
restart, it blocks waiting for an ARP probe to occur. This leads
to the deadlock and has been fixed by removing the block of the
task which is not necessary when restarting the interface.

CIRCUMVENTION FOR APAR MA37330 :
--------------------------------
none


DESCRIPTION OF PROBLEM FIXED FOR APAR MA37331 :
-----------------------------------------------
During IPL, the service TCP/IP stack error logs may be corrupted
because of missing data. This could make it more difficult to
debug problems with the service stack.

CORRECTION FOR APAR MA37331 :
-----------------------------
The missing data from the error log has been corrected.

CIRCUMVENTION FOR APAR MA37331 :
--------------------------------
none


Activation Instructions


None.




Special Instructions


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THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF45009      LIC-COMM-TCPIP-UNPRED VL4F0000DC DHCP client exception
   MF44141      LIC-COMM-TCPIP DHCP client support
   MF43855      LIC-COMM Remote Optical Device unusable after two varied on
   MF43240      LIC-COMM LAN console fails to connect
   MF42759      LIC-COMM-TCPIP Remote support interface sharing

Summary Information

System..............................System i
Models..............................
Release.............................V6R1M0
Licensed Program...............5761999
APAR Fixed..........................MA37330
MA37331
Superseded by:......................View fix details for PTF MF53582
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C9111610


System i Support

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Document Information

Modified date:
10 December 2008