IMPORTANT NOTICE

Updated: 24-SEP-2003 (Use your browsers' Reload button to ensure you're viewing the most recent version)

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Copyright (c) Digital Equipment Corporation 1994. All rights reserved.


OP/SYS:     OpenVMS VAX

COMPONENT:  File System
            F11BXQP

SOURCE:     Digital Equipment Corporation

ECO INFORMATION:

     CSCPAT Kit:  CSCPAT_0084 V1.0 (CSCPAT_0084010)
     ECO Kit Approximate Size:  180 Blocks
     Engineering Cross Reference:  F11BXQP$PATCH01_0511
     Kit Applies To:  OpenVMS VAX V5.1, V5.1-1
     System Reboot Necessary:  Yes


ECO KIT SUMMARY:

An ECO (patch) kit exists for the F11BXQP on OpenVMS VAX V5.1 through
V5.1-1.  This kit addresses the following problems:


  o  When a user process requests a file system I/O operation, the
     XQP code may charge a lock request against the process lock queue
     limit (ENQLM limit).  If the process ENQLM limit has already been
     reached, the next file system operation requested by that process
     may cause a XQPERR bugcheck at an offset of 760E, 76BA, 76EA or
     7B50 if an attempt is made to request another lock.

  o  The XQP process attempts to use a file control block (FCB) which
     has already been deallocated to generic non-paged pool.  This
     action results in the system crashing with the WCBFCBMNG bugcheck
     at an offset of F979 or F991.

  o  OpenVMS crashes with a NOTFCBFCB bugcheck at an offset of EC28
     when the NUKE_HEAD_FCB routine determines that the address passed
     to it is not a valid FCB structure.  The FCB address being passed
     points to a structure which looks somewhat like a FCB, but the
     type fields are incorrect.

  o  OpenVMS crashes with a XQPERR bugcheck at an offset of 7362, 73F4,
     7402, 740E, or 74A0 when a discrepancy is found between the EOF
     marker for the INDEXF.SYS file stored in a file control block (FCB)
     and the EOF marker stored in a lock value block.


RELATED ARTICLES:

Detailed articles describing the problems listed above may exist in
the OPENVMS database(s).  To view these articles, open the appropriate
product database and perform a query using the search string
'CSCPAT_0084'.


ECO KIT ORDERING INSTRUCTIONS:

If after an evaluation you wish to obtain this kit, request it
electronically using the appropriate Advanced Electronic Services
(AES) Service Tool.  If you are not familiar with how to request
kits electronically, open the DIA, WIS or DSNLINK database and
review the article entitled:

  [AES] How To Electronically Request ECO (Patch) Kits Using Service Tools


INSTALLATION NOTES:

In order for the corrections in this kit to take effect, the system
must be rebooted.  If the system is a member of a VAXcluster, then
the entire cluster should be rebooted.
  
  ==========================================================================
  |                     Table of Kit Image Information                     |
  +----------------------------+----------+-----------------+--------------+
  |                            | Overall  | Image File      | Image Link   |
  | Image Name                 | Checksum | Identification  | Date/Time    |
  +----------------------------+----------+-----------------+--------------+
  | F11BXQP.EXE                |%X2FDC3D84| X-8             |  9-MAY-1989  |
  |                                       |                 | 15:46:41.65  |
  +----------------------------+----------+-----------------+--------------+