Patch Name: PHCO_29258

Patch Description: s700_800 11.00 fsck_vxfs(1M) JFS3.3 cumulative patch

Creation Date: 30/05/03

Post Date: 03/08/22

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

Products:
	HP JFS3.3

Filesets:
	JFS.JFS-BASE-KRN,fr=3.3,fa=HP-UX_B.11.00_32/64,v=HP

Automatic Reboot?: No

Status: General Release

Critical:
	Yes
	PHCO_29258: ABORT
		fsck_vxfs(1M) fails to fix a file system
		with more than 8 million inodes and aborts.
	PHCO_24036: CORRUPTION
		Two consecutive invocations of fsck_vxfs(1M)
		can result in a directory corruption.

Category Tags:
	defect_repair general_release critical halts_system
	corruption

Path Name: /hp-ux_patches/s700_800/11.X/PHCO_29258

Symptoms:
	PHCO_29258:
	( SR: 8606308172 CR: JAGae71207 )
	fsck error: fileset 1 primary-ilist inode 65 has
	invalid size. Errors encountered are as follows:
	#fsck -F vxfs /dev/vg01/lvol2
	fileset 1 primary-ilist inode 65 has invalid size \
	(2611675136)
	fileset 1 primary-ilist inode 97 has invalid size \
	(2611675136)
	no valid ILISTs for fileset 999
	file system check failure, aborting ...

	PHCO_24036:
	( SR: 8606131436 CR: JAGad00586 )
	fsck_vxfs(1M) goes into infinite loop
	as follows:
	# fsck -F vxfs -o /dev/vg01/rlvol2
	replay in progress
	file system is not clean, full fsck required
	pass0 - checking structural files
	vxfs fsck: structural inode 97 (Primary Ilist 1) failed
	validationclear? (ynq)y
	pass1 - checking inode sanity and blocks
	pass2 - checking directory linkage
	pass3 - checking reference
	countsrebuild structural files? (ynq)y
	pass0 - checking structural files
	vxfs fsck: structural inode 97 (Primary Ilist 1) failed
	validation clear? (ynq)y
	Pass2 ... .

	( SR: 8606187984 CR: JAGad57192 )
	If fsck_vxfs(1M) is run twice in a row in a log reply
	mode it may corrupt the directory entries. A full fsck
	will be required, and the lost data should be manually
	restored from lost+found to recover.

Defect Description:
	PHCO_29258:
	( SR: 8606308172 CR: JAGae71207 )
	fsck_vxfs(1M) fails when the size of IFILT for
	the unnamed fileset grows beyond 2 GB. When
	filesystem contains more than 8 million inodes,
	IFILT for the unnamed fileset grows beyond 2 GB.
	Also, the largefiles flag for structural fileset
	is not set. When fsck_vxfs(1M) is run on such
	filesystem, it fails with the error messages
	reported in symptoms.

	Resolution:
	Add an extra condition to check if the file is indeed
	IFILT for the str fileset, if the version of the
	disklayout > 2, if the fileset isn't NULL and if the
	features flag for unnamed fileset is set to
	VX_FSETBIT_LARGEFILES.
	This patch expects that the features flag for the
	unnamed fileset to be set to VX_FSETBIT_LARGEFILES.
	If its not set to VX_FSETBIT_LARGEFILES then we can
	hit the errors that are reported in the symptoms.
	In such an eventuality, setting of the features flag
	on the unnamed fileset will solve this problem.
	This could be done by using the fsadm command:
	fsadm -F vxfs -o largefiles /dev/vgXX/rlvolX

	PHCO_24036:
	( SR: 8606131436 CR: JAGad00586 )
	fsck_vxfs(1M) fails to validate structural inodes and
	goes into an infinite loop. The filesystem remains
	unmountable.
	Resolution:
	The code was added to correctly validate structural
	inodes and to fix the corrupted ones.

	( SR: 8606187984 CR: JAGad57192 )
	In reply mode fsck_vxfs attempts to optimize
	the directory structure. It moves the entries towards
	the beginning of a list, if there is room. If
	interrupted and restarted again in a log reply mode
	it will not be aware of the moved entries, and
	will try to write to the old locations of the
	moved directories, as per the intent log.
	Resolution:
	Directory optimization during the log reply
	removed from fsck_vxfs(1M)

Enhancement:
	No

SR:
	8606308172 8606131436 8606187984

Patch Files:
	
	JFS.JFS-BASE-KRN,fr=3.3,fa=HP-UX_B.11.00_32/64,v=HP:
	/sbin/fs/vxfs3.3/fsck

what(1) Output:
	
	JFS.JFS-BASE-KRN,fr=3.3,fa=HP-UX_B.11.00_32/64,v=HP:
	/sbin/fs/vxfs3.3/fsck:
		fsck_vxfs   Jun 16 2003     PATCH_11_00     PHCO_292
			58

cksum(1) Output:
	
	JFS.JFS-BASE-KRN,fr=3.3,fa=HP-UX_B.11.00_32/64,v=HP:
	240809615 495616 /sbin/fs/vxfs3.3/fsck

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes:
	PHCO_24036 

Equivalent Patches: None

Patch Package Size: 280 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_29258

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHCO_29258.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHCO_29258.  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 PHCO_29258.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHCO_29258.depot

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

		dd if=/tmp/PHCO_29258.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None