Patch Name: PHKL_15258

Patch Description: s700_800 10.30 VxFS Panic in vx_itimes() patch

Creation Date: 98/05/12

Post Date:  98/05/20

Hardware Platforms - OS Releases:
	s700: 10.30
	s800: 10.30

Products: N/A

Filesets:
	AdvJournalFS.VXFS-ADV-KRN JournalFS.VXFS-BASE-KRN

Automatic Reboot?: Yes

Status: General Release

Critical:
	Yes
	PHKL_15258: PANIC
		panic caused due to insufficient space as we are
		trying to reserve more free space than available
		in the directory

Path Name: /hp-ux_patches/s700_800/10.X/PHKL_15258

Symptoms:
	PHKL_15258:
	System may panic in vx_itimes() when allocating extents for
	growing a structural file due to the number of subfunctions
	being exceeded.

Defect Description:
	PHKL_15258:
	A JFS file system could panic in vx_itimes() due to
	vx_growfile() not checking to see if we are getting close
	to or exceeding the maximum number of subfunctions per
	transaction (VX_MAXTRAN). Similar checks were added to
	vx_trunc_typed(), vx_reorg_zaprip() and vx_reorg_dupswap()
	to avoid exceeding the subfunction limit.

SR:
	1653261024

Patch Files:
	/usr/conf/lib/libvxfs_adv.a(vx_reorg.o)
	/usr/conf/lib/libvxfs_base.a(vx_bmaptyped.o)
	/usr/conf/lib/libvxfs_base.a(vx_fsetsubr.o)

what(1) Output:
	/usr/conf/lib/libvxfs_adv.a(vx_reorg.o):
		vx_reorg.c $Date: 98/05/12 15:52:54 $ $Revision: 1.6
			.102.10 $ PATCH_10.30 (PHKL_15258)
	/usr/conf/lib/libvxfs_base.a(vx_bmaptyped.o):
		vx_bmaptyped.c $Date: 98/05/12 15:56:35 $ $Revision:
			 1.2.102.9 $ PATCH_10.30 (PHKL_15258)
	/usr/conf/lib/libvxfs_base.a(vx_fsetsubr.o):
		vx_fsetsubr.c $Date: 98/05/12 15:43:00 $ $Revision:
			1.2.102.8 $ PATCH_10.30 (PHKL_15258)

cksum(1) Output:
	2045426256 23388 /usr/conf/lib/libvxfs_adv.a(vx_reorg.o)
	2177643718 19696 /usr/conf/lib/
		libvxfs_base.a(vx_bmaptyped.o)
	681159245 25412 /usr/conf/lib/libvxfs_base.a(vx_fsetsubr.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches: None

Patch Package Size: 130 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_15258

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

		swinstall -x autoreboot=true -x match_target=true \
			-s /tmp/PHKL_15258.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_15258.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_15258.  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_15258.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_15258.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions:
	If you are planning to install the advanced VxFS product
	(AdvJournalFS.VXFS-ADV-KRN), it is imperative that this
	patch, and all listed superseded patches, be removed from
	the system via swremove(1M) before the actual product
	installation.  After the installation of the advanced VxFS
	product has completed, this patch can be re-installed.  (It
	is not necessary to re-install superseded patches.)  All
	patches listed in the Supersedes field are subject to this
	behavior and need to be removed before installing the
	advanced VxFS product.  After running swremove(1M), use the
	swlist(1M) command to insure that none of the previous
	patches were restored during the removal process.  If one
	was, remove it using swremove(1M).