Patch Name: PHKL_28385

Patch Description: s700_800 11.22 Fix panic in stacktrace code

Creation Date: 02/12/17

Post Date:  02/12/20

Hardware Platforms - OS Releases:
	s700: 11.22
	s800: 11.22

Products: N/A

Filesets:
	OS-Core.CORE2-KRN,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP

Automatic Reboot?: Yes

Status: General Release

Critical:
	Yes
	PHKL_28385: PANIC
		There is a low probability of encountering the
		conditions this defect fixes.

Category Tags:
	defect_repair general_release critical panic

Path Name: /hp-ux_patches/s700_800/11.X/PHKL_28385

Symptoms:
	PHKL_28385:
	( SR:8606271435 CR:JAGae35641 )
	This problem is IPF specific.
	While this problem can happen with an MCA or TOC, it has
	never been observed.  Depending on the situation, this
	problem could cause either inaccurate stack trace output or
	a panic following the MCA or TOC.

	This problem can also cause a panic while running the
	spinwatcher utility.  The panic string is as follows:
	"panic: gexcp_hndlr: Unresolved priv 0 interruption."

Defect Description:
	PHKL_28385:
	( SR:8606271435 CR:JAGae35641 )
	Panic in stack tracing code when running spinwatcher.

	Resolution:
	This fix causes the stack unwind code to take into account
	a stack trace that occurs after a function has restored
	its stack pointer.

Enhancement:
	No

SR:
	8606271435

Patch Files:
	
	OS-Core.CORE2-KRN,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	/usr/conf/lib/libshutdown-pdk.a(unwind.o)

what(1) Output:
	
	OS-Core.CORE2-KRN,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	/usr/conf/lib/libshutdown-pdk.a(unwind.o):
		unwind.c $Date: 2002/12/06 08:45:03 $Revision: r11.2
			2/1 PATCH_11.22 (PHKL_28385)

cksum(1) Output:
	
	OS-Core.CORE2-KRN,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	2333325811 47736 /usr/conf/lib/libshutdown-pdk.a(unwind.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies:
	IPF

Other Dependencies: None

Supersedes: None

Equivalent Patches: None

Patch Package Size: 70 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_28385

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHKL_28385.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHKL_28385.  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_28385.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHKL_28385.depot

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

		dd if=/tmp/PHKL_28385.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None