Patch Name: PHKL_29764

Patch Description: s700_800 11.00 fstyp(1M) hang on swap volume

Creation Date: 03/11/17

Post Date: 03/12/16

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

Products: N/A

Filesets:
	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP
	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP

Automatic Reboot?: Yes

Status: General Release

Critical:
	Yes
	PHKL_29764: HANG
		fstyp(1M) hangs when it is invoked on the swap
		volume.

Category Tags:
	defect_repair general_release critical halts_system

Path Name: /hp-ux_patches/s700_800/11.X/PHKL_29764

Symptoms:
	PHKL_29764:
	( SR:8606314488 CR:JAGae77255 )
	Under some circumstances, fstyp(1M) hangs when it is invoked
	on the swap volume.  This happens when we replace the
	physical disk on which we have the swap volume, restart the
	system and invoke fstyp(1M) on it.  This hanging fstyp(1M)
	cannot be killed.

Defect Description:
	PHKL_29764:
	( SR:8606314488 CR:JAGae77255 )
	Under some circumstances, fstyp(1M) hangs when it is invoked
	on the swap volume.  This happens when we replace the
	physical disk on which we have the swap volume, restart the
	system and invoke fstyp(1M) on it.  This happens because the
	buffer, which is used to read the volume, is not released
	correctly in the error handling code path of the kernel.

	Resolution:
	The error handling code of the kernel has been modified to
	release the buffer approprately.

Enhancement:
	No

SR:
	8606314488

Patch Files:
	
	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
	/usr/conf/lib/libufs.a(ufs_vfsops.o)

	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
	/usr/conf/lib/libufs.a(ufs_vfsops.o)

what(1) Output:
	
	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
	/usr/conf/lib/libufs.a(ufs_vfsops.o):
		ufs_vfsops.c $Date: 2003/09/16 23:06:08 $Revision: r
			11ros/3 PATCH_11.00 (PHKL_29764)

	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
	/usr/conf/lib/libufs.a(ufs_vfsops.o):
		ufs_vfsops.c $Date: 2003/09/16 23:06:08 $Revision: r
			11ros/3 PATCH_11.00 (PHKL_29764)

cksum(1) Output:
	
	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_32,v=HP:
	1812148922 23916 /usr/conf/lib/libufs.a(ufs_vfsops.o)

	OS-Core.CORE2-KRN,fr=B.11.00,fa=HP-UX_B.11.00_64,v=HP:
	1525539835 57096 /usr/conf/lib/libufs.a(ufs_vfsops.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches: None

Patch Package Size: 50 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_29764

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHKL_29764.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHKL_29764.  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 PHKL_29764.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHKL_29764.depot

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

		dd if=/tmp/PHKL_29764.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None