Patch Name: PHCO_21509

Patch Description: s700_800 10.26 umount_vxfs(1M) cumulative patch

Creation Date: 00/04/10

Post Date:  00/04/12

Hardware Platforms - OS Releases:
	s700: 10.26
	s800: 10.26

Products: N/A

Filesets:
	OS-Core.UX-CORE

Automatic Reboot?: No

Status: General Release

Critical: No

Path Name: /hp-ux_patches/s700_800/10.X/PHCO_21509

Symptoms:
	PHCO_21509:
	Port of PHCO_10295.

	(PHCO_10295)
	If a snapshot vxfs file system overflows, it is disabled.
	Umount will not allow the unmounting of this file system,
	returning with an I/O Error.

Defect Description:
	PHCO_21509:
	Port of PHCO_10295.

	(PHCO_10295)
	The problem is caused by a bug in /sbin/fs/hfs/umount,
	which is linked to via the vxfs umount.  If a file system
	is mounted on as a snapshot of another file system, and
	that other file system fills up, it is possible for the
	snapshot file system to overflow.  When trying to umount
	the file system, the user will get an I/O Error, and be
	unable to unmount the file system except via a reboot.

SR:
	1653203554

Patch Files:
	/sbin/fs/hfs/umount

what(1) Output:
	/sbin/fs/hfs/umount:
		00/04/07 lib/libc/core/gen/ctime.c, hpux, hpux_10.26
			, ic5er Revision 1.2 PATCH_10.26 (PHCO_17823
			) UNMODIFIED
		00/01/05 lib/libc/net/net/innetgr.c, hpux, hpux_10.2
			6, ic5er Revision 1.2 PATCH_10.26 (PHCO_2078
			2) UNMODIFIED
		00/01/05 lib/libc/net/yp/yp_all.c, hpux, hpux_10.26,
			 ic5er Revision 1.2 PATCH_10.26 (PHCO_20782)
		00/01/05 lib/libc/net/yp/yp_bind.c, hpux, hpux_10.26
			, ic5er Revision 1.2 PATCH_10.26 (PHCO_20782
			)
		00/01/05 lib/libc/net/yp/yp_match.c, hpux, hpux_10.2
			6, ic5er Revision 1.2 PATCH_10.26 (PHCO_2078
			2)
		00/01/05 lib/libc/net/rpc/xdr_mem.c, hpux, hpux_10.2
			6, ic5er Revision 1.2 PATCH_10.26 (PHCO_2078
			2) UNMODIFIED
		2000/04/07 Hewlett-Packard HP-UX 10.26 TOS [ ic5er -
			 DAV17 ]
		00/04/06 cmd/umount/hfs/umount.c, hpux, hpux_10.26,
			ic5er Revision 1.2 PATCH_10.26 (PHCO_21509)
		$Revision: 78.4.1.1 $
		99/11/09 lib/libsecurity/map_ids.c, hpux, hpux_10.26
			, ic5er Revision 1.13 PATCH_10.26 (PHCO_2043
			0)
		00/04/07 lib/libsecurity/mandlib.c, hpux, hpux_10.26
			, ic5er Revision 1.5 PATCH_10.26 (PHCO_17760
			) $
		99/05/21 lib/libsecurity/authcap.c, hpux, hpux_10.26
			, ic5er Revision 1.5 PATCH_10.26 (PHCO_18502
			)
		ic5ae_DAV17 lib/libc/archive_pa1/libc.a_01
		Apr  7 2000 19:48:57

cksum(1) Output:
	1608153184 356352 /sbin/fs/hfs/umount

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches:
	PHCO_10295:
	s700: 10.20
	s800: 10.20

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_21509

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

		swinstall -x autoreboot=true -x match_target=true \
			-s /tmp/PHCO_21509.depot

	By default swinstall will archive the original software in
	/var/adm/sw/patch/PHCO_21509.  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_21509.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_21509.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None