Patch Name: PHKL_26934

Patch Description: s700_800 11.00 Data page fault in vx_tranlogflush()

Creation Date: 02/05/02

Post Date:  02/05/06

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

Products: N/A

Filesets:
	JournalFS.VXFS-BASE-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP
	JournalFS.VXFS-BASE-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP

Automatic Reboot?: Yes

Status: General Release

Critical:
	Yes
	PHKL_26934: PANIC

Category Tags:
	defect_repair general_release critical panic

Path Name: /hp-ux_patches/s700_800/11.X/PHKL_26934

Symptoms:
	PHKL_26934:
	( SR:8606219389 CR:JAGad88531 )
	The system may panic with a data page fault in the
	routine vx_tranlogflush. When the panic occurs a
	typical stack trace might look like:

	  crash event was a panic
	  panic+0x14
	  report_trap_or_int_and_panic+0x80
	  trap+0xe08
	  nokgdb+0x8
	  vx_tranlogflush+0x38
	  vx_trancheck+0x2c
	  vx_cutflush+0x134
	  vx_tflush_cut+0x74
	  vx_fsq_flush+0x30c
	  vx_tranflush+0x14
	  vx_fsetupdate+0x2c
	  vx_doflushmeta+0x40
	  vx_walk_aglist+0xa8
	  vx_flushmeta+0x1c
	  vx_logflush_thread+0x4c
	  kthread_daemon_startup+0x24
	  kthread_daemon_startup+0x0
	  vx_trancheck+0x2c

	The problem occurs randomly with no known
	trigger.

Defect Description:
	PHKL_26934:
	( SR:8606219389 CR:JAGad88531 )
	The mlink linked list was being corrupted because
	the head of the linked list was being added as an
	element of the linked list also.

	Resolution:
	Ensure that the head of the linked list is not put on
	the linked list as an item.

SR:
	8606219389

Patch Files:
	
	JournalFS.VXFS-BASE-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
	/usr/conf/lib/libvxfs_base.a(vx_cut.o)

	JournalFS.VXFS-BASE-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
	/usr/conf/lib/libvxfs_base.a(vx_cut.o)

what(1) Output:
	
	JournalFS.VXFS-BASE-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
	/usr/conf/lib/libvxfs_base.a(vx_cut.o):
		vx_cut.c $Date: 2002/04/23 07:36:01 $Revision: r11ro
			s/1 PATCH_11.00 (PHKL_26934)

	JournalFS.VXFS-BASE-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
	/usr/conf/lib/libvxfs_base.a(vx_cut.o):
		vx_cut.c $Date: 2002/04/23 07:36:01 $Revision: r11ro
			s/1 PATCH_11.00 (PHKL_26934)

cksum(1) Output:
	
	JournalFS.VXFS-BASE-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
	3660457828 13240 /usr/conf/lib/libvxfs_base.a(vx_cut.o)

	JournalFS.VXFS-BASE-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
	4279628470 30128 /usr/conf/lib/libvxfs_base.a(vx_cut.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

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_26934

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHKL_26934.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHKL_26934.  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_26934.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHKL_26934.depot

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

		dd if=/tmp/PHKL_26934.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None