Patch Name: PHKL_21364

Patch Description: s700_800 11.00 dynamic spinlock inlining missing opcodes

Creation Date: 00/03/29

Post Date:  00/04/03

Hardware Platforms - OS Releases:
	s700: 11.00
	s800: 11.00

Products: N/A

Filesets:
	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP
	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP

Automatic Reboot?: Yes

Status: General Release

Critical: No

Category Tags:
	defect_repair general_release

Path Name: /hp-ux_patches/s700_800/11.X/PHKL_21364

Symptoms:
	PHKL_21364:
	( SR: 8606100244 CR: JAGab26369 )
	Dynamic inlining of spinlocks requires that instructions
	be moved to make room for the spinlock code.  The list
	of allowed instructions was incomplete, thus preventing
	inlining in some circumstances.  This reduced performance.

Defect Description:
	PHKL_21364:
	( SR: 8606100244 CR: JAGab26369 )
	When attempts to dynamically inline spinlocks fail, system
	performance suffers, sometimes dramatically.

	Resolution:
	The list of movable instructions has been corrected so
	that dynamic inlining will take place in all known code
	sequences.

SR:
	8606100244

Patch Files:
	
	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
	/usr/conf/lib/libhp-ux.a(spinlock.o)

	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
	/usr/conf/lib/libhp-ux.a(spinlock.o)

what(1) Output:
	
	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
	/usr/conf/lib/libhp-ux.a(spinlock.o):
		spinlock.c $Date: 2000/03/17 11:52:51 $Revision: r11
			ros/15 PATCH_11.00 (PHKL_21364)

	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
	/usr/conf/lib/libhp-ux.a(spinlock.o):
		spinlock.c $Date: 2000/03/17 11:52:51 $Revision: r11
			ros/15 PATCH_11.00 (PHKL_21364)

cksum(1) Output:
	
	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
	392409528 28000 /usr/conf/lib/libhp-ux.a(spinlock.o)

	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
	3400722920 65728 /usr/conf/lib/libhp-ux.a(spinlock.o)

Patch Conflicts: None

Patch Dependencies:
	s700: 11.00: PHKL_18543
	s800: 11.00: PHKL_18543

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches: None

Patch Package Size: 120 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_21364

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHKL_21364.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHKL_21364.  If you do not wish to retain a
	copy of the original software, use the patch_save_files option:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -x patch_save_files=false -s /tmp/PHKL_21364.depot

	WARNING: If patch_save_files is false when a patch is installed,
		 the patch cannot be deinstalled.  Please be careful
		 when using this feature.

	For future reference, the contents of the PHKL_21364.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHKL_21364.depot

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

		dd if=/tmp/PHKL_21364.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions:
	This patch depends on base patch PHKL_18543.
	For successful installation please insure that PHKL_18543
	is already installed, or that PHKL_18543 is included
	in the same depot with this patch and PHKL_18543
	is selected for installation.