Date: 2008-12-18	 
OS: HPUX 
OS Version: 11.23
Etrack Incidents: 1302917, 1375952, 1380981, 1426690, 1438080
Errors/Problems Fixed:
1302917 ODM hang, deadlock between two threads trying vaslockpages and IRWLOCK
1375952 DPF in vx_dnlc_pathname_realloc
1380981 Unaligned Direct I/O is slower on VxFS 4.1 than on VxFS 3.5
1426690 invalid ACLs can be set on HP
1438080 odmmkfile/qiomkfile should fail for non- root users

Install and Uninstall Instructions:
-----------------------------------

1.Installing VxFS 4.1 MP2RP4     patch:

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)VxFS 4.1(GA)  must be installed before applying these
  patches.
c)To verify the VERITAS file system level, enter:
     # swlist -l product | egrep -i 'VRTSvxfs'
  VRTSvxfs     4.1        VERITAS File System  

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> PHKL_39026 PHCO_39027 PHCO_39081 
2.Removing VxFS 4.1-MP2RP4     patch:
a)To remove the patch, enter the following command:

# swremove -x autoreboot=true PHKL_39026 PHCO_39027 

Notes:
-------

1.Special Installation Instruction: This patch requires 
the JFS fsck(1M) binary to be present at the
standard location (/sbin/fs/vxfs/fsck). The swverify(1M) command can be
used to verify the integrity of the JFS.VXFS-BASE-RUN fileset that
contains the fsck(1M) binary.