Patch Name: PHKL_15952

Patch Description: s700 10.20 VxFS Quota/Attr. Fix For Panic During Log Replay

Creation Date: 98/07/16

Post Date:  98/08/03

Hardware Platforms - OS Releases:
	s700: 10.20

Products: N/A

Filesets:
	JournalFS.VXFS-BASE-KRN

Automatic Reboot?: Yes

Status: General Release

Critical:
	Yes
	PHKL_15952: PANIC

Path Name: /hp-ux_patches/s700/10.X/PHKL_15952

Symptoms:
	PHKL_15952:
	A data page fault panic occurs during the log replay stage
	of mounting an un-clean VxFS file system that uses
	attributes (e.g. OmniStorage File Systems).  The stack
	trace might look like:

		panic+0x10
		report_trap_or_int_and_panic+0xe8
		trap+0xa48
		$RDB_trap_patch+0x20
		vx_mkcuttran+0x10
		vx_fsetquotaupdate+0x50
		vx_quotaupdate+0x8c
		vx_do_extfree+0x90
		vx_extfree+0x3cc
		vx_qtrunc+0x100
		vx_iremove+0x1cc
		vx_attr_iremove+0x150
		vx_attr_inactive+0x254
		vn_rele+0x1e8
		vx_iput+0x20
		vx_replay_lct+0xf0
		vx_replay+0x27c
		vx_getfsi+0x1a4
		vx_mount_getfsi+0x64
		vx_domount+0xac
		vx_mount+0x2fc
		smount2+0x43c
		smount+0x10
		syscall+0x1a4
		$syscallrtn+0x0

Defect Description:
	PHKL_15952:
	The code dealing with quotas assumes that if
	attributes are being used in a file system,
	attribute information will be present in inodes
	that it handles.

	During log replay at mount time, however, inodes
	come directly from the log and do not have the
	inherited information.  This causes a pointer to
	a NULL fileset structure to be passed to a
	function which causes a data page fault when fields
	in the NULL fileset structure are de-referenced.

SR:
	1653265389

Patch Files:
	/usr/conf/lib/libvxfs_base.a(vx_quota.o)

what(1) Output:
	/usr/conf/lib/libvxfs_base.a(vx_quota.o):
		vx_quota.c $Date: 98/07/16 12:30:09 $ $Revision: 1.6
			.98.8 $ PATCH_10.20 (PHKL_15952)

cksum(1) Output:
	626596534 4548 /usr/conf/lib/libvxfs_base.a(vx_quota.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches:
	PHKL_15953:
	s800: 10.20

Patch Package Size: 60 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_15952

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

		swinstall -x autoreboot=true -x match_target=true \
			-s /tmp/PHKL_15952.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/PHKL_15952.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/PHKL_15952.  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 PHKL_15952.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/PHKL_15952.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None