Patch Name: PHKL_30207

Patch Description: s700_800 11.23 CDump Hang; Dump Abort; 32 Dump Devices

Creation Date: 04/01/27

Post Date: 04/02/09

Hardware Platforms - OS Releases:
	s700: 11.23
	s800: 11.23

Products: N/A

Filesets:
	ProgSupport.C-INC,fr=B.11.23,fa=HP-UX_B.11.23_IA/PA,v=HP
	OS-Core.CORE2-KRN,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP

Automatic Reboot?: Yes

Status: General Release

Critical:
	Yes
	PHKL_30207: OTHER
		Some dump device drivers might fail to dump and
		crash dump may be aborted if the buffers used
		during crash dump are above 4 GB.
	PHKL_29923: HANG

Category Tags:
	defect_repair general_release critical halts_system

Path Name: /hp-ux_patches/s700_800/11.X/PHKL_30207

Symptoms:
	PHKL_30207:
	( SR:8606337079 CR:JAGae98116 )
	The maximum number of dump devices that can be configured
	is limited to 16.

	( SR:8606337242 CR:JAGae98268 )
	During crash dump, the dump is aborted after printing one
	of the following error messages:
	SCSI: Illegal Instruction Detected
	 or
	ERROR:  can't open first dump device
	 or
	ERROR:  can't open dump device.

	The error message depends on the dump device configured
	and the type of dump taken (dump with compression/dump
	without compression).

	PHKL_29923:
	( SR:8606324182 CR:JAGae86647 )
	Compressed Dump hangs after printing the message
	'*** Dumping:   0% complete'.

Defect Description:
	PHKL_30207:
	( SR:8606337079 CR:JAGae98116 )
	For taking large dumps, more than 16 dump devices might be
	necessary.

	Resolution:
	Increased the maximum number of dump devices that can be
	configured from 16 to 32.

	( SR:8606337242 CR:JAGae98268 )
	Some of the dump device interface cards can handle only
	32-bit addresses (i.e., below 4 GB). It is possible that
	the buffers used for writing during a crash dump are
	allocated above 4 GB. In this case, these dump drivers
	will fail and the error message is displayed.

	Resolution:
	The memory allocation algorithm used for allocating crash
	dump buffers was changed to look for memory below 4 GB
	if available.

	PHKL_29923:
	( SR:8606324182 CR:JAGae86647 )
	The processor selection code for Compressed Dump was not
	checking for the readiness of slave processors to
	participate in the crash dump. This causes the dump monarch
	to wait for processors which do not participate in the
	crash dump.

	Resolution:
	The check has been added in the processor selection code to
	see if a processor is ready to participate in Compressed
	Dump, and if not select another processor.

Enhancement:
	No

SR:
	8606324182 8606337079 8606337242

Patch Files:
	
	ProgSupport.C-INC,fr=B.11.23,fa=HP-UX_B.11.23_IA/PA,v=HP:
	/usr/include/sys/dumphdr.h

	OS-Core.CORE2-KRN,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP:
	/usr/conf/lib/libdump-pdk.a(em_dumpsys.o)
	/usr/conf/lib/libdump.a(dumpconf.o)
	/usr/conf/lib/libdump.a(dumpdev.o)

what(1) Output:
	
	ProgSupport.C-INC,fr=B.11.23,fa=HP-UX_B.11.23_IA/PA,v=HP:
	/usr/include/sys/dumphdr.h:
		dumphdr.h $Date: 2003/12/13 01:15:30 $Revision: r11.
			23/1 PATCH_11.23 (PHKL_30207) */

	OS-Core.CORE2-KRN,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP:
	/usr/conf/lib/libdump-pdk.a(em_dumpsys.o):
		em_dumpsys.c $Date: 2003/12/13 01:15:30 $Revision: r
			11.23/2 PATCH_11.23 (PHKL_30207)
	/usr/conf/lib/libdump.a(dumpconf.o):
		dumpconf.c $Date: 2003/12/13 01:15:30 $Revision: r11
			.23/1 PATCH_11.23 (PHKL_30207)
	/usr/conf/lib/libdump.a(dumpdev.o):
		dumpdev.c $Date: 2003/12/13 01:15:30 $Revision: r11.
			23/1 PATCH_11.23 (PHKL_30207)

cksum(1) Output:
	
	ProgSupport.C-INC,fr=B.11.23,fa=HP-UX_B.11.23_IA/PA,v=HP:
	1680478980 13317 /usr/include/sys/dumphdr.h

	OS-Core.CORE2-KRN,fr=B.11.23,fa=HP-UX_B.11.23_IA,v=HP:
	3644488301 60224 /usr/conf/lib/libdump-pdk.a(em_dumpsys.o)
	3779375599 52032 /usr/conf/lib/libdump.a(dumpconf.o)
	1391692083 15520 /usr/conf/lib/libdump.a(dumpdev.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes:
	PHKL_29923 

Equivalent Patches: None

Patch Package Size: 70 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_30207

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHKL_30207.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHKL_30207.  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_30207.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHKL_30207.depot

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

		dd if=/tmp/PHKL_30207.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None