* * * READ ME * * *
              * * * Veritas Group Lock Manager 6.0.1 * * *
                      * * * Patch 6.0.1.200 * * *
                         Patch Date: 2016-03-03


This document provides the following information:

   * PATCH NAME
   * OPERATING SYSTEMS SUPPORTED BY THE PATCH
   * PACKAGES AFFECTED BY THE PATCH
   * BASE PRODUCT VERSIONS FOR THE PATCH
   * SUMMARY OF INCIDENTS FIXED BY THE PATCH
   * DETAILS OF INCIDENTS FIXED BY THE PATCH
   * INSTALLATION PRE-REQUISITES
   * INSTALLING THE PATCH
   * REMOVING THE PATCH


PATCH NAME
----------
Veritas Group Lock Manager 6.0.1 Patch 6.0.1.200


OPERATING SYSTEMS SUPPORTED BY THE PATCH
----------------------------------------
HP-UX 11i v3 (11.31)


PACKAGES AFFECTED BY THE PATCH
------------------------------
VRTSglm


BASE PRODUCT VERSIONS FOR THE PATCH
-----------------------------------
   * Veritas Storage Foundation Cluster File System HA 6.0.1
   * Veritas Storage Foundation for Oracle RAC 6.0.1


SUMMARY OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
Patch ID: PVKL_04071
* 3845273 (2850818) GLM  thread got panic with null pointer de-reference.
Patch ID: PVKL_04035
* 3364311 (3364309) Internal stress test on cluster file system hit debug assert in Group Lock Manager (GLM).


DETAILS OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
This patch fixes the following Symantec incidents:

Patch ID: PVKL_04071

* 3845273 (Tracking ID: 2850818)

SYMPTOM:
GLM thread may get panic if cache pointer remains null.

DESCRIPTION:
When GLM cache pointer is de-refrenced, thread got panicked. This
is due to the reason that there can be a case where memory is not allocated to
the cache and pointer remained null but we missed the check for null pointer and
later we de-referenced that resulting into the panic.

RESOLUTION:
Code has been modified to handle the situation where memory is not
allocated for the cache.

Patch ID: PVKL_04035

* 3364311 (Tracking ID: 3364309)

SYMPTOM:
Internal stress test on cluster file system hit debug assert in Group Lock Manager (GLM).

DESCRIPTION:
In GLM, the code to handle last revoke for a lock may cause a deadlock which is caught upfront by debug assert.

RESOLUTION:
The code is modified to avoid deadlock while handling last revoke for a lock.



INSTALLING THE PATCH
--------------------
Run the Installer script to automatically install the patch:
-----------------------------------------------------------
To install the patch perform the following steps on at least one node in the cluster:
1. Copy the patch glm-hpux1131-Patch-6.0.1.200.tar.gz to /tmp
2. Untar glm-hpux1131-Patch-6.0.1.200.tar.gz to /tmp/hf
    # mkdir /tmp/hf
    # cd /tmp/hf
    # gunzip /tmp/glm-hpux1131-Patch-6.0.1.200.tar.gz
    # tar xf /tmp/glm-hpux1131-Patch-6.0.1.200.tar
3. Install the hotfix
    # pwd 
    /tmp/hf
    # ./installGLM601P2 [<host1> <host2>...]

You can also install this patch together with 6.0.1 GA release and 6.0.5 Patch release
    # ./installGLM601P2 -base_path [<601 path>] -mr_path [<605 path>] [<host1> <host2>...]
where the -mr_path should point to the 6.0.5 image directory, while -base_path to the 6.0.1 image.

Install the patch manually:
--------------------------
a)If you install this patch on a CVM cluster, install it one system at a time so that all the nodes are not brought down simultaneously.
b)GLM 6.0.1(GA) must be installed before applying these patches.
c)To verify the VERITAS file system level, enter:
     # swlist -l product | egrep -i "VRTSglm"
d)All prerequisite/corequisite patches have to be installed.The Kernel patch requires a system reboot for both installation and removal.
e)To install the patch, enter the following command:
# swinstall -x autoreboot=true -s <patch_directory>  PVKL_04071


REMOVING THE PATCH
------------------
a)To remove the patch, enter the following command:
# swremove -x autoreboot=true PVKL_04071


SPECIAL INSTRUCTIONS
--------------------
Manually install this patch by the native OS command such as "patchadd" if it's installed on stacks other than 6.0.5.


OTHERS
------
NONE