Patch Name: PHKL_28029

Patch Description: s700_800 11.22 Audio driver defect fix

Creation Date: 02/12/11

Post Date:  02/12/20

Hardware Platforms - OS Releases:
	s700: 11.22
	s800: 11.22

Products: N/A

Filesets:
	ProgSupport.C-INC,fr=B.11.22,fa=HP-UX_B.11.22_IA/PA,v=HP
	OS-Core.CORE2-KRN,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP

Automatic Reboot?: Yes

Status: General Release

Critical:
	Yes
	PHKL_28029: PANIC

Category Tags:
	defect_repair general_release critical panic

Path Name: /hp-ux_patches/s700_800/11.X/PHKL_28029

Symptoms:
	PHKL_28029:
	( SR:8606273765 CR:JAGae37853 )
	Under certain conditions, the audio driver can cause a MCA
	to occur.  This can occur with playback and record.  A
	sample message log from the dump is:

	MCA[0]:MCA occurred.
	MCA[0]:Processor State Parameter = 0xa8000000fff21330
	MCA[0]:uc:1 rc:0 bc:1 tc:0 cc:1 dsize:0
	MCA[0]:gr:1 b0:1 b1:1 fp:1 pr:1 br:1 ar:1 rr:1
	MCA[0]:tr:1 dr:1 pc:1 cr:1 ex:0 cm:0 rs:1 in:0
	MCA[0]:dy:0 pm:0 pi:0 mi:1 tl:0 hd:0 us:1 ci:1
	MCA[0]:co:0 sy:0 mn:1 me:1 ra:0 rz:0
	MCA[0]:REVISION:0002
	MCA[0]:SEVERITY:1
	MCA[0]:Processor Error Device Info decode begins.
	MCA[0]:VALIDATION_BITS = 0x000000000110101f
	MCA[0]:PSP = 0xa8000000fff21330
	MCA[0]:The error was isolated but not contained.
	MCMCA[0]:The error was isolated but not contained.
	MCA/CMC[0]: cache check.   info:N/A
	MCA/CMC[0]: req:N/A res:N/A
	MCA/CMC[0]: tgt:N/A ip:N/A
	MCA/CMC[0]: bus check.   info:0x0080000000000060
	MCA/CMC[0]: req:N/A res:N/A
	MCA/CMC[0]: tgt:N/A ip:N/A
	MCA/CMC[0]: uarch check.   info:0x0080000000003001
	MCA/CMC[0]: req:N/A res:N/A
	MCA/CMC[0]: tgt:N/A ip:N/A
	MCA[0]:PSI_STATIC_STRUCT.VALID_FIELD_BITS=0x000000000000003f
	MCA[0]:Processor Error Device Info decode ends.
	MCA[0]:mca_wakeup() begins.
	MCA[0]:mca_wakeup() ends.

	+--------------------------------------------+
	| Processor activity                         |
	+--------------------------------------------+
	Processor 0 started it by MCA'ing.

	A sample stack trace is:

	stack trace for event 0
	crash event was an MCA
	The reason for stopping stack unwind -
	next ip equals 0x2000 would no longer be in kernel space

	OS_MCA_Vector+0x410
	llcon_putchar+0xa0

Defect Description:
	PHKL_28029:
	( SR:8606273765 CR:JAGae37853 )
	Under certain high-stress conditions, the audio driver may
	get into a state where a buffer overrun or underrun can
	occur.  When this happens, a MCA occurs.

	Resolution:
	Fix the driver so no overruns occur

Enhancement:
	No

SR:
	8606273765

Patch Files:
	
	ProgSupport.C-INC,fr=B.11.22,fa=HP-UX_B.11.22_IA/PA,v=HP:
	/usr/include/sys/audio.h

	OS-Core.CORE2-KRN,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	/usr/conf/lib/libwsio.a(audio.o)
	/usr/conf/lib/libwsio.a(audio5.o)
	/usr/conf/lib/libwsio.a(audio_shared.o)

what(1) Output:
	
	ProgSupport.C-INC,fr=B.11.22,fa=HP-UX_B.11.22_IA/PA,v=HP:
	/usr/include/sys/audio.h:
		audio.h $Date: 2002/12/09 08:22:21 $Revision: r11.22
			/1 PATCH_11.22 (PHKL_28029) */

	OS-Core.CORE2-KRN,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	/usr/conf/lib/libwsio.a(audio.o):
		audio.c $Date: 2002/12/09 08:22:21 $Revision: r11.22
			/1 PATCH_11.22 (PHKL_28029)
	/usr/conf/lib/libwsio.a(audio5.o):
		audio5.c $Date: 2002/12/09 08:22:21 $Revision: r11.2
			2/1 PATCH_11.22 (PHKL_28029)
	/usr/conf/lib/libwsio.a(audio_shared.o):
		audio_shared.c $Date: 2002/12/09 08:22:21 $Revision:
			 r11.22/1 PATCH_11.22 (PHKL_28029)

cksum(1) Output:
	
	ProgSupport.C-INC,fr=B.11.22,fa=HP-UX_B.11.22_IA/PA,v=HP:
	184546348 31189 /usr/include/sys/audio.h

	OS-Core.CORE2-KRN,fr=B.11.22,fa=HP-UX_B.11.22_IA,v=HP:
	202003355 113952 /usr/conf/lib/libwsio.a(audio.o)
	4150961542 199952 /usr/conf/lib/libwsio.a(audio5.o)
	1621140660 92152 /usr/conf/lib/libwsio.a(audio_shared.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches: None

Patch Package Size: 450 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_28029

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHKL_28029.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHKL_28029.  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_28029.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHKL_28029.depot

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

		dd if=/tmp/PHKL_28029.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None