Patch Name: PHKL_27734

Patch Description: s700_800 11.11 Data page fault in vx_isumpush()

Creation Date: 02/09/05

Post Date:  03/01/09

Hardware Platforms - OS Releases:
	s700: 11.11
	s800: 11.11

Products: N/A

Filesets:
	JFS.VXFS-BASE-KRN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP
	JFS.VXFS-BASE-KRN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP

Automatic Reboot?: Yes

Status: General Release

Critical:
	Yes
	PHKL_27734: PANIC

Category Tags:
	defect_repair general_release critical panic

Path Name: /hp-ux_patches/s700_800/11.X/PHKL_27734

Symptoms:
	PHKL_27734:
	( SR:8606166688 CR:JAGad35975 )
	Corrupted VxFS filesystem may panic the system.  Stack of
	the panic thread will look like,
	  panic+0x6c
	  report_trap_or_int_and_panic+0x94
	  trap+0xfe4
	  nokgdb+0x8
	  vx_isumpush+0x8
	  vx_sumpushfset+0xa8
	  vx_fsetupdate+0x6c
	  vx_sync1+0x54
	  vx_sync0+0x18
	  vx_walk_fslist+0x7c
	  vx_sync+0x58
	  update+0x4c
	  tsync+0x164
	  syscall+0x750
	  $syscallrtn+0x0

Defect Description:
	PHKL_27734:
	( SR:8606166688 CR:JAGad35975 )
	When a filesystem is corrupted, incore data strucures and
	data on disk may differ and dereferencing them on a
	corrupted filesystem may panic the system.

	Resolution:
	Cross check whether the incore data and data on disk match
	so that a filesystem corruption could be detected and the
	filesystem could be disabled, thus avoiding a system crash.

Enhancement:
	No

SR:
	8606166688

Patch Files:
	
	JFS.VXFS-BASE-KRN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP:
	/usr/conf/lib/libvxfs.a(vx_fsetsubr.o)

	JFS.VXFS-BASE-KRN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP:
	/usr/conf/lib/libvxfs.a(vx_fsetsubr.o)

what(1) Output:
	
	JFS.VXFS-BASE-KRN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP:
	/usr/conf/lib/libvxfs.a(vx_fsetsubr.o):
		vx_fsetsubr.c $Date: 2002/08/19 06:03:07 $Revision: 
			r11.11/1 PATCH_11.11 (PHKL_27734)

	JFS.VXFS-BASE-KRN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP:
	/usr/conf/lib/libvxfs.a(vx_fsetsubr.o):
		vx_fsetsubr.c $Date: 2002/08/19 06:03:07 $Revision: 
			r11.11/1 PATCH_11.11 (PHKL_27734)

cksum(1) Output:
	
	JFS.VXFS-BASE-KRN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP:
	1462223229 28964 /usr/conf/lib/libvxfs.a(vx_fsetsubr.o)

	JFS.VXFS-BASE-KRN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP:
	1716328713 52064 /usr/conf/lib/libvxfs.a(vx_fsetsubr.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches:
	PHKL_24010:
	s700: 11.00
	s800: 11.00

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_27734

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHKL_27734.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHKL_27734.  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_27734.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHKL_27734.depot

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

		dd if=/tmp/PHKL_27734.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None