Patch Name: PHKL_21099

Patch Description: s700 10.20 Superio Parallel driver fixes

Creation Date: 00/02/18

Post Date:  00/03/06

Hardware Platforms - OS Releases:
	s700: 10.20

Products: N/A

Filesets:
	OS-Core.CORE-KRN OS-Core.KERN-RUN

Automatic Reboot?: Yes

Status: General Release

Critical: No

Path Name: /hp-ux_patches/s700/10.X/PHKL_21099

Symptoms:
	PHKL_21099:
	(SR: 8606127257   CR: JAGac68803)
	On a system with a superio parallel interface, and a valid
	device driver, but with no cable hooked to the interface,
	output to the device will have to be aborted.  On the first
	reboot following the abort, disks will fail to be synced,
	and fsck will run on the file system as the system reboots.

	(SR: 8606129243   CR: JAGac86789)
	If an open is attempted on a character device special file
	which has the same major number as the SCentIf device file
	(typically /dev/c1t0d0_lp), and whose minor number differs
	from that of /dev/c1t0d0_lp in only the 2nd hex digit (eg.
	0x020002 instead of 0x010002), the system will panic.
	This would normally require deliberately creating a bad
	device file.

	PHKL_17644:
	This patch enables new functionality that is part of the
	10.20 ACE (Additional Core Enhancements) Workstation bundle.
	It adds new I/O drivers to support the B1000, C3000, and
	J5000 systems.  In particular this patch enables the superio
	parallel interface.

Defect Description:
	PHKL_21099:
	(SR: 8606127257   CR: JAGac68803)
	The defect is that there are paths through the code where
	spinunlock could be called twice in succession on the same
	lock.  This would leave the processor at a high "SPL" level
	and effectively block the interrupts needed to sync the
	disks at reboot time.

	Resolution:
	spinunlock statement have been removed or reordered at two
	places in the code, so that they can only be called once
	per lock.

	(SR: 8606129243   CR: JAGac86789)
	At open time, the dev number is not adequately checked to
	insure that the device was scanned and claimed, prior to
	using the data structures for the device, resulting in a
	NULL dereference which led to the panic.

	Resolution:
	A more robust check was implemented in the open routine.

	NOTE:  Both PHKL_21099 and PHKL_17644 (superceded by
	20199) require that base SuperIO functionality delivered
	by the patch PHKL_17645 be present on the system in
	order for the parallel port to work.

	PHKL_17644:
	New functionality to support the B1000, C3000, and J5000
	systems on HP-UX 10.20.  The parallel interface on these
	systems can not be used unless this patch is present.
	Resolution:
	Add support for the superio parallel interface.

SR:
	4701398263 8606127257 8606129243

Patch Files:
	/usr/conf/lib/libpci.a(ecp_isr.o)
	/usr/conf/lib/libpci.a(ecp_strategy.o)
	/usr/conf/lib/libpci.a(ecp_utils.o)
	/usr/conf/lib/libpci.a(superio_centif.o)
	/usr/conf/master.d/SCentIf

what(1) Output:
	/usr/conf/lib/libpci.a(ecp_isr.o):
		ecp_isr.c          $Date: 2000/02/15 08:09:31 $ $Rev
			ision: 1.2.98.3 $ PATCH_10.20 (PHKL_21099)
	/usr/conf/lib/libpci.a(ecp_strategy.o):
		ecp_strategy.c          $Date: 99/04/14 10:01:20 $ $
			Revision: 1.2.98.2 $ PATCH_10.20 (PHKL_17644
			)
	/usr/conf/lib/libpci.a(ecp_utils.o):
		ecp_utils.c          $Date: 2000/02/15 08:09:41 $ $R
			evision: 1.2.98.3 $ PATCH_10.20 (PHKL_21099)
	/usr/conf/lib/libpci.a(superio_centif.o):
		superio_centif.c          $Date: 2000/02/15 08:05:22
			 $ $Revision: 1.2.98.3 $ PATCH_10.20 (PHKL_2
			1099)
	/usr/conf/master.d/SCentIf:
		SCentIf  $Date: 99/04/15 08:09:35 $ $Revision: 1.2.9
			8.3 $ PATCH_10.20 (PHKL_17644)
		SCentIf  $Date: 99/04/15 08:09:35 $ $Revision: 1.2.9
			8.3 $ PATCH_10.20 (PHKL_17644)

cksum(1) Output:
	3030389284 5244 /usr/conf/lib/libpci.a(ecp_isr.o)
	61408276 4756 /usr/conf/lib/libpci.a(ecp_strategy.o)
	3894306462 3404 /usr/conf/lib/libpci.a(ecp_utils.o)
	10818753 9432 /usr/conf/lib/libpci.a(superio_centif.o)
	1289822159 5577 /usr/conf/master.d/SCentIf

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes:
	PHKL_17644

Equivalent Patches: None

Patch Package Size: 100 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_21099

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

		swinstall -x autoreboot=true -x match_target=true \
			-s /tmp/PHKL_21099.depot

	By default swinstall will archive the original software in
	/var/adm/sw/patch/PHKL_21099.  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_21099.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_21099.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None