Patch Name:  PHKL_2810

Patch Description: s700 9.01 Single-bit memory errors not reported correctly

    When a single-bit memory error (SBE) is detected on a Series 700
    machine, the hardware generates a low-priority machine check (LPMC).
    The kernel's interrupt handler determines the type of LPMC, as well
    as the appropriate action.  Each SBE is corrected by the memory
    hardware, so the appropriate action is merely to log it.  The error
    address is printed to the message buffer, and so-called "syndrome"
    data, which details the failed memory board and chip location, is
    saved for later extraction by memory diagnostics.

    Early versions of the firmware logged the SBE information
    differently than the more recent ones.  However, the kernel did not
    change to take advantage of this change.  This causes incorrect SBE
    information to be reported; specifically, the error address is 0.
    The firmware was changed for the models 735 and 755.

    This patch corrects the interrupt handler so that it extracts the
    SBE information from the correct location.  This is backward
    compatible with older firmware versions, and can be installed safely
    on those machines.

Path Name:  /hp-ux_patches/s700/9.X/PHKL_2810

Effective Date:  930709

Patch Files:  /etc/conf/libhp-ux.a(trap.o)

SR/APR#:  4701-161430

"what" string/timestamp:  
  trap.c       $Revision: 1.163.81.3 $ $Date: 93/07/09 15:04:41 $ PATCH_9.01
(PHKL_2810)

"sum" output:  13975 57 trap.o

Dependencies:  None.

Supersedes: None.

OS Release: 9.01

H/W Dependencies:  None.

Special Installation Instructions:  None.

Reboot required: Yes.

Patch Installation Recommendation: Recommended for all 735, 755, and newer
        Series 700 machines.

Patch Package Size:  93 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_2810).

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_2810.updt"
   (this assumes that you are in the /tmp directory where PHKL_2810.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_2810/orig.  HP recommends keeping this software there in
order to recover from any potential problems.  It is also recommended that
you move the PHKL_2810.text file to /system/PHKL_2810 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_2810.updt of=/dev/rmt/0m bs=2048