Patch Name:  PHKL_2287

Patch Description: Use local swap when on remote filesystem and sticky bit set

At HP-UX 8.0x, HP revised the Virtual Memory System (VM)
to include changes so that when text(code) segments are paged out, they are no
longer written to the swap area. This is an improvement for applications
on a local disk drive, reducing I/O and swap requirements. However for
applications utilizing a "program" server, the retreival comes from the
network via NFS, with a potentially slower access time. For certain
large applications, this can be a problem. We have created the
enhancement patch PHKL_2287 so that if a file is executed on a remote
file system and the sticky bit is set on that executable, we will try
to use the local swap device for the text instead of using the executable
image as the swap.

Path Name:  /hp-ux_patches/s700/8.X/PHKL_2287

Effective Date:  930324

Patch Files:  
/system/PHKL_2287/new/vm_mmap.o

SR/APR#:  

"what" string/timestamp:  
vm_mmap.o:
         vm_mmap.c    $Revision: 1.12.77.3 $ $Date: 93/03/23 17:05:49 $
PATCH_8.07 (PHKL_2287)


"sum" output:  
28821 13 vm_mmap.o


Dependencies:  This patch should be applied to HP-UX 8.07 only.

Supersedes:
None

Patch Package Size:  41 Kbytes

Installation Instructions:  

     Please review all instructions and the Hewlett-Packard
     SupportLine User Guide or your Hewlett-Packard support terms
     and conditions for precautions, scope of license,
     restrictions, and, limitation of liability and warranties,
     before installing this patch.

     Note: Please back up your system before you patch.

---------------------------------------------------------------------------
After getting the patch onto your machine, unshar the patch (sh PHKL_2287).

To install this patch do the following:
1) Run /etc/update (Note: you must be logged in as root to update
   a system).
2) Once in the update "Main Menu" move the highlighted line to "Change
   Source or Destination ->" and press "Return" or "Select Item".
3) Make sure the highlighted item in the "Change Source or Destination"
   window is "From Tape Device to Local System ...", then press "Return" or
   "Select Item".
4) You should now be in the "From Tape Device to Local System" window.
   Change the "Source:  /dev/rmt/0m" to "Source: /tmp/PHKL_2287.updt"
   (this assumes that you are in the /tmp directory where PHKL_2287.updt
   has been placed).  Note: You must enter the complete path name.
5) Press "Done".
6) From here on follow the standard directions for update.

The customized script that update runs will move the original software
to /system/PHKL_2287/orig.  HP recommends keeping this software there in
order to recover from any potential problems.  It is also recommended that
you move the PHKL_2287.text file to /system/PHKL_2287 to be retained for
future reference.

If you wish to put this patch on a magnetic tape and update from the tape
drive, dd a copy of the patch to the tape drive.  As an example the
following will create a copy of the patch that update can read:
dd if=PHKL_2287.updt of=/dev/rmt/0m bs=2048