Patch Name: PHKL_12763

Patch Description: s700 10.20 HIL year > 2000, HIL hang, HIL bad packet patch

Creation Date: 97/09/30

Post Date:  97/10/08

Hardware Platforms - OS Releases:
	s700: 10.20

Products: N/A

Filesets:
	OS-Core.CORE-KRN

Automatic Reboot?: Yes

Status: General Superseded

Critical:
	Yes
	PHKL_12763: HANG ABORT

Path Name: /hp-ux_patches/s700/10.X/PHKL_12763

Symptoms:
	PHKL_12763:
	Systems may experience intermittent X server failures where
	mouse movement data is incorrectly sent from the keyboard
	device. This would cause the X server to abort. Such
	failures were seen on a customer's HPUX 9.07 system with a
	frequency of about once per day.

	If the HIL keyboard is disconnected, reconnected, and then
	disconnected again very rapidly, the system will hang
	until the keyboard is once again connected.

	PHKL_9921:
	If the HP-UX date command sets the year to be greater than
	2000 on a workstation with HIL, subsequent boots in
	administrative mode show the year to be 20100, although
	once fully booted in HP-UX, the year appears as 2000.

Defect Description:
	PHKL_12763:
	The customer's defect was observed on 9.07 after installing
	the 9.X patch PHKL_4413. This patch regulated the system
	time of day clock by accessing the system real time clock
	hardware every 10 minutes.  The system real time clock
	hardware is interfaced to the same coprocessor that also
	controls the HP-HIL loop used for the keyboard and mouse.
	A small timing window exists such that if the real time
	clock is read while a packet of data is being received from
	the mouse, incorrect data could be transmitted to the X
	server.

	The keyboard reconnection handler in the HIL driver can hang
	if the keyboard is disconnected immediately after being
	disconnected and then reconnected.  This problem has only
	been reproduced by a customer designed HIL switchbox or by
	rapidly and repeatedly plugging and unplugging a keyboard
	(i.e.  multiple times a second).

	PHKL_9921:
	If the date command specifies a year of 2000 or greater,
	HIL code in HP-UX incorrectly sends a year out of the range
	of 0-99 to the HIL hardware.

SR:
	4701334763 4701345181 4701354639

Patch Files:
	/usr/conf/lib/libhp-ux.a(s_hil_code.o)

what(1) Output:
	/usr/conf/lib/libhp-ux.a(s_hil_code.o):
		graf/s_hil_code.c $Date: 97/09/30 20:09:45 $ $Revisi
			on: 1.8.98.5 $ PATCH_10.20 (PHKL_12763)

cksum(1) Output:
	83104171 15520 /usr/conf/lib/libhp-ux.a(s_hil_code.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes:
	PHKL_9921

Equivalent Patches:
	PHKL_11725:
	s700: 9.03 9.05 9.07

Patch Package Size: 80 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.
	------------------------------------------------------------
	1. Back up your system before installing a patch.

	2. Login as root.

	3. Copy the patch to the /tmp directory.

	4. Move to the /tmp directory and unshar the patch:

		cd /tmp
		sh PHKL_12763

	5a. For a standalone system, run swinstall to install the
	    patch:

		swinstall -x autoreboot=true -x match_target=true \
			-s /tmp/PHKL_12763.depot

	5b. For a homogeneous NFS Diskless cluster run swcluster on the
	    server to install the patch on the server and the clients:

		swcluster -i -b

	    This will invoke swcluster in the interactive mode and
	    force all clients to be shut down.

	    WARNING: All cluster clients must be shut down prior to the
		     patch installation.  Installing the patch while the
		     clients are booted is unsupported and can lead to
		     serious problems.

	    The swcluster command will invoke an swinstall session in which
	    you must specify:

		alternate root path  -  default is /export/shared_root/OS_700
		source depot path    -  /tmp/PHKL_12763.depot

	    To complete the installation, select the patch by choosing
	    "Actions -> Match What Target Has" and then "Actions -> Install"
	    from the Menubar.

	5c. For a heterogeneous NFS Diskless cluster:

		- run swinstall on the server as in step 5a to install
		  the patch on the cluster server.

		- run swcluster on the server as in step 5b to install
		  the patch on the cluster clients.

	By default swinstall will archive the original software in
	/var/adm/sw/patch/PHKL_12763.  If you do not wish to retain a
	copy of the original software, you can create an empty file
	named /var/adm/sw/patch/PATCH_NOSAVE.

	Warning: If this file exists when a patch is installed, the
	         patch cannot be deinstalled.  Please be careful
		 when using this feature.

	It is recommended that you move the PHKL_12763.text file to
	/var/adm/sw/patch for future reference.

	To put this patch on a magnetic tape and install from the
	tape drive, use the command:

		dd if=/tmp/PHKL_12763.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None