Patch Name: PHKL_26995

Patch Description: s700_800 11.00 syscall, signal, umask cumulative patch

Creation Date: 02/05/09

Post Date:  02/05/31

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:
	Yes
	PHKL_26995: HANG

Category Tags:
	defect_repair general_release critical halts_system

Path Name: /hp-ux_patches/s700_800/11.X/PHKL_26995

Symptoms:
	PHKL_26995:
	( SR:8606250948 CR:JAGae17016 )
	System occasionally hangs on reboot when the CPU resource
	manager of the Process Resource Manager (PRM) is turned on.

Defect Description:
	PHKL_26995:
	( SR:8606250948 CR:JAGae17016 )
	If the system configures an alternating distribution of the
	default PRM group with user created PRM groups, a reboot is
	in progress, and an idle processor tries to steal threads to
	run from other processors, the thread stealing policy in
	this case causes this processor to go into an infinite loop
	searching for a thread to steal if and only if no thread is
	found from the next PRM group to run.  If any of these
	conditions are not met, there is no hang.

	Resolution:
	The CPU resource manager of PRM is turned off during system
	reboot.

SR:
	8606250948

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(pm_config.o)

	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
	/usr/conf/lib/libhp-ux.a(pm_config.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(pm_config.o):
		pm_config.c $Date: 2002/05/02 15:40:56 $Revision: r1
			1ros/3 PATCH_11.00 (PHKL_26995)

	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
	/usr/conf/lib/libhp-ux.a(pm_config.o):
		pm_config.c $Date: 2002/05/02 15:40:56 $Revision: r1
			1ros/3 PATCH_11.00 (PHKL_26995)

cksum(1) Output:
	
	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
	2623068054 8256 /usr/conf/lib/libhp-ux.a(pm_config.o)

	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
	939572729 21344 /usr/conf/lib/libhp-ux.a(pm_config.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: 50 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_26995

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHKL_26995.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHKL_26995.  If you do not wish to retain a
	copy of the original software, include the patch_save_files
	option in the swinstall command above:

		-x patch_save_files=false

	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_26995.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHKL_26995.depot

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

		dd if=/tmp/PHKL_26995.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.