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fs-rhel7_x86_64-Patch-7.0.0.100
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 Basic information
Release type: Patch
Release date: 2015-09-16
OS update support: None
Technote: None
Documentation: None
Popularity: 618 viewed    174 downloaded
Download size: 8.18 MB
Checksum: 1596245587

 Applies to one or more of the following products:
InfoScale Enterprise 7.0 On RHEL7 x86-64
InfoScale Foundation 7.0 On RHEL7 x86-64
InfoScale Storage 7.0 On RHEL7 x86-64

 Obsolete patches, incompatibilities, superseded patches, or other requirements:
None.

 Fixes the following incidents:
3790562, 3807368, 3816107

 Patch ID:
VRTSvxfs-7.0.0.100-RHEL7

 Readme file  [Save As...]
                          * * * READ ME * * *
                  * * * Veritas File System 7.0 * * *
                         * * * Patch 100 * * *
                         Patch Date: 2015-08-13


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 File System 7.0 Patch 100


OPERATING SYSTEMS SUPPORTED BY THE PATCH
----------------------------------------
RHEL7 x86-64


PACKAGES AFFECTED BY THE PATCH
------------------------------
VRTSvxfs


BASE PRODUCT VERSIONS FOR THE PATCH
-----------------------------------
   * InfoScale Enterprise 7.0
   * InfoScale Foundation 7.0
   * InfoScale Storage 7.0


SUMMARY OF INCIDENTS FIXED BY THE PATCH
---------------------------------------
Patch ID: 7.0.0.100
* 3790562 (3736398) NULL pointer dereference panic in lazy unmount.
* 3807368 (3807366) The man pages included in the VRTSvxfs, VRTSfsadv and
VRTSfssdk packages have an incorrect product version.
* 3816107 (3812914) On RHEL 6.5 and RHEL 6.4 latest kernel patch, umount(8) system call hangs if an
application watches for inode events using inotify(7) APIs.


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

Patch ID: 7.0.0.100

* 3790562 (Tracking ID: 3736398)

SYMPTOM:
Panic in the lazy unmount path during deinit of VxFS-VxVM API.

DESCRIPTION:
The panic is caused when an exiting thread drops the last reference
to a lazy-unmounted VxFS file-system where that fs is the last VxFS mount in the
system. The exiting thread does unmount, which then calls into VxVM to
de-initialize the private FS-VM API(as it is the last VxFS mounted fs). 
The function to be called in VxVM is looked-up via the files under /proc, this
requires an opening of a file but the exit processing has removed the structs
needed by the thread to open a file.

RESOLUTION:
The solution is to cache the de-init function (vx_fsvm_api_deinit)
when the VxFS-VxVM API is initialized, so no function look-up is needed during
an unmount. The cached function pointer can then be called during the last
unmount bypassing the need to open the file by the exiting thread.

* 3807368 (Tracking ID: 3807366)

SYMPTOM:
The man pages included in the VRTSvxfs, VRTSfsadv and VRTSfssdk
packages identify the product version incorrectly as 6.2, instead of the correct
7.0.

DESCRIPTION:
Man pages included in the packages identify the product version
they document. For the man pages included in the 7.0 release, this version was
incorrectly mentioned as 6.2.  The online versions of the man pages available
from SORT have previously been updated to mention the correct version.

RESOLUTION:
The versions in the man pages have been corrected and updated man
pages have been included in the packages.

* 3816107 (Tracking ID: 3812914)

SYMPTOM:
On RHEL 6.5 and RHEL 6.4 latest kernel patch, umount(8) system call hangs if an
application watches for inode events using inotify(7) APIs.

DESCRIPTION:
On RHEL 6.5 and RHEL 6.4 latest kernel patch, additional OS counters were added in
the super block to track inotify Watches. These new counters were not implemented
in VxFS for RHEL6.5/RHEL6.4 kernel. Hence, while doing umount, the operation hangs
until the counter in the superblock drops to zero, which would never happen since
they are not handled in VxFS.

RESOLUTION:
The code is modified to handle additional counters added in super block of
RHEL6.5/RHEL6.4 latest kernel.



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 fs-rhel7_x86_64-Patch-7.0.0.100.tar.gz to /tmp
2. Untar fs-rhel7_x86_64-Patch-7.0.0.100.tar.gz to /tmp/hf
    # mkdir /tmp/hf
    # cd /tmp/hf
    # gunzip /tmp/fs-rhel7_x86_64-Patch-7.0.0.100.tar.gz
    # tar xf /tmp/fs-rhel7_x86_64-Patch-7.0.0.100.tar
3. Install the hotfix
    # pwd /tmp/hf
    # ./installVRTSvxfs700P100 [<host1> <host2>...]

Install the patch manually:
--------------------------
rpm -Uvh VRTSvxfs-7.0.0.100-RHEL7.x86_64.rpm


REMOVING THE PATCH
------------------
rpm -e rpm_name


SPECIAL INSTRUCTIONS
--------------------
NONE


OTHERS
------
NONE



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