MF51284 - LIC-MEDIA-TAPE Fix memory leak

TYPE PROGRAM  REL  NUMBER   MIN/MAX  OPTION
---- -------- ---  -------  -------  ------
CO   5770999  710  MF50200   00/00    0000



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
including programs that circumvent control technology designed to limit
interactive capacity to purchased levels.  This PTF may be a prerequisite
for future PTFs.  By applying this PTF you authorize and agree to the
foregoing.

This PTF is subject to the terms of the 'IBM License Agreement for Machine
Code', the terms of which were provided in a printed document that was
delivered with the machine.

SUBJECT TO ANY WARRANTIES WHICH CAN NOT BE EXCLUDED OR EXCEPT AS EXPLICITLY
AGREED TO IN THE APPLICABLE LICENSE AGREEMENT OR AN APPLICABLE SUPPORT
AGREEMENT, IBM MAKES NO WARRANTIES OR CONDITIONS EITHER EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.


APAR Error Description / Circumvention

-------------------------------------------------
When certain Product Activity Log (PAL) entries are logged, a
small amount of memory remains allocated which results in a
fragmented heap or the heap filling up. A heap allocation may
then fail causing the tape operation to fail and a VL2E000E002
LIC log entry to be logged.

A save following a SETTAPCGY may fail with a MSGCPF5401 and an
automatic flight recorder dump.

A save to a tape library may fail with MSGCPA4089 or MSGCPA4090
if a tape drive is in the process of being automatically cleaned
by the tape library.

Mounting a cleaning cartridge fails with MSGCPF6760.

CORRECTION FOR APAR 'MA40033' :
-------------------------------
The tape device driver has been changed to free the memory which
will reduce the possibility of fragmenting the heap or running
out of heap memory.

A SETTAPCGY command issued immediately after a tape command that
issued a rewind may cause the rewind to be cancelled leaving the
tape device driver in an error state. The tape device driver has
been changed to properly handle cancelling a rewind.

The tape device driver has been changed to handle automatic
cleaning or mounting of a cleaning cartridge better.

CIRCUMVENTION FOR APAR 'MA40033' :
----------------------------------
None.


Activation Instructions


None.




Special Instructions

None.


Default Instructions

THIS IS A DELAYED PTF TO BE APPLIED AT IPL TIME.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   MF50752      LIC-MEDIA-TAPE-INCORROUT Unknown sense data
   MF50199      LIC-MEDIA-TAPE-WAIT Hardware Service Manager
   MF48050      LIC-MEDIA-TAPE-INCORROUT SMART ADAPTER FIXES

Summary Information

System i Support