Patch Name: PHCO_12729

Patch Description: s700_800 10.16 fsck_hfs(1M) cumulative patch

Creation Date: 97/09/29

Post Date:  97/10/08

Hardware Platforms - OS Releases:
	s700: 10.16
	s800: 10.16

Products: N/A

Filesets:
	OS-Core.UX-CORE

Automatic Reboot?: No

Status: General Release

Critical:
	Yes
	PHCO_12729: PANIC

Path Name: /hp-ux_patches/s700_800/10.X/PHCO_12729

Symptoms:
	PHCO_12729:
	Fsck may corrupt a filesystem by not properly clearing
	an inode after clearing its associated continuation
	inode.  The filesystem will be marked clean.  If this
	inode is accessed once the filesystem is mounted, it
	can result in a system panic.

Defect Description:
	PHCO_12729:
	The problem appears when an inode with a continuation
	inode needs to be cleared.  The continuation inode
	is recursively cleared first.  The base inode should
	then be cleared, but some of the values have been
	altered by clearing the continuation inode, causing
	the base inode not to be fully cleared.  Thus it
	leaves this inode in the filesystem pointing to a
	cleared continuation inode.  Accessing this inode
	can cause a system panic.

SR:
	4701344432 4701296129

Patch Files:
	/sbin/fs/hfs/fsck

what(1) Output:
	/sbin/fs/hfs/fsck:
		$Revision: SecureWare Level mlpmp37 $ $Header: Secur
			eWare Release hpux_mlpmp $ $Date: Thu Aug  7
			 16:48:52 PDT 1997 $
		cmd/fsck/fsck.c, hpux, hpux_mlpmp, 10.16-21 $Date: 9
			7/09/29 10:43:14 $$Revision: 1.2 PATCH_10.16
			 (PHCO_12729) $
		$Revision: 74.8 $
		81      1.15    lib/libsecurity/mandlib.c, libsecuri
			ty_macilb, hpux_mlpmp, mlpmp27 $Date: 03/17/
			95 14:06:49 $ $Revision:  PATCH_10.16 (PHKL_
			11066) $ Hewlett-Packard GTL
		lib/libsecurity/authcap.c, libsecurity_ia, hpux_mlpm
			p, mlpmp27 $Date: 97/05/16 12:48:44 $Revisio
			n: 1.12 PATCH_10.16 (PHCO_8592)
		PATCH/10_01 PHCO_6595 $Revision: 74.9.1.16.1.19 $

cksum(1) Output:
	2160869578 356352 /sbin/fs/hfs/fsck

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches: None

Patch Package Size: 400 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 PHCO_12729

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

		swinstall -x autoreboot=true -x match_target=true \
			-s /tmp/PHCO_12729.depot

	5b. For a homogeneous NFS Diskless cluster run swcluster on the
	    server to install the patch on the server and the clients:

		swcluster -i -b

	    This will invoke swcluster in the interactive mode and
	    force all clients to be shut down.

	    WARNING: All cluster clients must be shut down prior to the
		     patch installation.  Installing the patch while the
		     clients are booted is unsupported and can lead to
		     serious problems.

	    The swcluster command will invoke an swinstall session in which
	    you must specify:

		alternate root path  -  default is /export/shared_root/OS_700
		source depot path    -  /tmp/PHCO_12729.depot

	    To complete the installation, select the patch by choosing
	    "Actions -> Match What Target Has" and then "Actions -> Install"
	    from the Menubar.

	5c. For a heterogeneous NFS Diskless cluster:

		- run swinstall on the server as in step 5a to install
		  the patch on the cluster server.

		- run swcluster on the server as in step 5b to install
		  the patch on the cluster clients.

	By default swinstall will archive the original software in
	/var/adm/sw/patch/PHCO_12729.  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 PHCO_12729.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/PHCO_12729.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None