Patch Name: PHSS_13173

Patch Description: s700_800 10.20 PRM B.10.24 memory management daemon fix

Creation Date: 97/11/10

Post Date:  97/11/18

Hardware Platforms - OS Releases:
	s700: 10.20
	s800: 10.20

Products:
	B3948AA A.01.03
	B3834AA A.01.03

Filesets:
	Proc-Resrc-Mgr.PRM-RUN

Automatic Reboot?: No

Status: General Release

Critical: No

Path Name: /hp-ux_patches/s700_800/10.X/PHSS_13173

Symptoms:
	PHSS_13173:

	Defunct processes remain on system when PRM memory
	management in use and system paging.

Defect Description:
	PHSS_13173:

	PRM memory management forks self to write process
	recovery file asynch when reclaiming pages from
	overconsuming processes.

	When the recovery file writer completes it exits
	but parent (the memory management daemon) does not
	do wait(2) to harvest the defunct (zombie) child.

SR:
	4701373803

Patch Files:
	/usr/bin/prm0d

what(1) Output:
	/usr/bin/prm0d:
		B3834AA A.01.03 HP PRM/9000 prm0d PHSS_13173

cksum(1) Output:
	245831107 32768 /usr/bin/prm0d

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches: None

Patch Package Size: 90 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 PHSS_13173

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

		swinstall -x autoreboot=true -x match_target=true \
			-s /tmp/PHSS_13173.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/PHSS_13173.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/PHSS_13173.  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 PHSS_13173.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/PHSS_13173.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions:
	1.  Install only on PRM version A.01.03 (what /usr/bin
	    /prm0d before install to check)

	2.  Equiv patches:  Because the prm0d is incompatible
	    between PRM B.10.22 and B.10.24 there must be 2
	    separate Davis patches (the equiv patches section above
	    does not allow this level of detail):

	    PHSS_12794: PRM B.10.22
	    PHSS_13173: PRM B.10.24

	    Also: PHSS_13178: PRM B.11.00