Patch Name: PHKL_26063

Patch Description: s700 10.20 Cumulative swap patch

Creation Date: 02/01/25

Post Date:  02/03/08

Hardware Platforms - OS Releases:
	s700: 10.20

Products: N/A

Filesets:
	OS-Core.CORE-KRN

Automatic Reboot?: Yes

Status: General Release

Critical:
	No (superseded patches were critical)
	PHKL_17334: PANIC
	PHKL_12956: PANIC

Path Name: /hp-ux_patches/s700/10.X/PHKL_26063

Symptoms:
	PHKL_26063:
	(SR: 8606228911 CR: JAGad97964)
	Cannot create file system swap greater than 4GB.

	PHKL_17334:
	swapinfo(1m) reports more space "free" than "available";
	panics with "swapchunk: swapspace exhausted"

	PHKL_12956:
	System panics if swapout process fails due to swap
	device error.The panic message is:
	panic:(display==0xb800,flags==0x0)swap device error.

Defect Description:
	PHKL_26063:
	(SR: 8606228911 CR: JAGad97964)
	When file system swap size was set to over 4GB, data types
	used in intermediate swap calculations overflowed.
	Resolution:
	The necessary type promotions were made to avoid
	intermediate swap calculations overflow due to data
	type limitations.

	PHKL_17334:
	swapon had a race condition in it for MP machines that
	would cause a swap device to be counted twice; this
	could be observed by running multiple "swapon -a"
	commands on different processors

	PHKL_12956:
	devswap_stratgy() checks B_ERROR flag in the buffer
	structure used in I/O process. The system panics if
	this flag is set. The fix was not to check if this
	flag is set. Instead, the buffer structure with the
	B_ERROR flag is passed to the caller of the strategy
	routine. The caller decides what action to take when
	B_ERROR flag is set.

SR:
	1653287250 4701374363 8606228911

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

what(1) Output:
	/usr/conf/lib/libhp-ux.a(vm_sw.o):
		vm_sw.c    $Date: 2002/01/11 06:28:14 $ $Revision: 1
			.30.98.10 $ PATCH_10.20 (PHKL_26063)

cksum(1) Output:
	3829270177 17868 /usr/conf/lib/libhp-ux.a(vm_sw.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies:
	The commands patch PHCO_26013 fixes the swapinfo(1M)
	utility to correctly display file system swap over
	1.5GB.
	None

Supersedes:
	PHKL_12956 PHKL_17334

Equivalent Patches:
	PHKL_26064:
	s800: 10.20

	PHKL_22771:
	s700: 11.00

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_26063

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

		swinstall -x autoreboot=true -x match_target=true \
			-s /tmp/PHKL_26063.depot

	By default swinstall will archive the original software in
	/var/adm/sw/patch/PHKL_26063.  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_26063.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_26063.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None