Patch Name: PHKL_25593

Patch Description: s700_800 11.11 Debugger thread hang

Creation Date: 01/11/07

Post Date:  01/11/13

Hardware Platforms - OS Releases:
	s700: 11.11
	s800: 11.11

Products: N/A

Filesets:
	OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP
	OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP

Automatic Reboot?: Yes

Status: General Release

Critical:
	Yes
	PHKL_25593: OTHER
		Hung, unkillable process

Category Tags:
	defect_repair general_release critical

Path Name: /hp-ux_patches/s700_800/11.X/PHKL_25593

Symptoms:
	PHKL_25593:
	( SR:8606221226 CR:JAGad90360 )
	When the debugger is killed or sent a signal when trying to
	attach to a process, that process will be left in a hung
	state and will be unkillable.

Defect Description:
	PHKL_25593:
	( SR:8606221226 CR:JAGad90360 )
	If the debugger is interrupted while trying to attach to a
	single threaded process that is sleeping uninterruptibly,
	it will return to the user without unsuspending the debugee
	thread.  Since the debugee's suspend count is not
	decremented, it will be suspended forever.

	Resolution:
	The kernel debug attach routine now checks the return from
	the debugger's sleep.  If the sleep returns an error, we
	know that the debugger has been interrupted by someone
	other than the debugee, so we decrement the debugee suspend
	count.

SR:
	8606221226

Patch Files:
	
	OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP:
	/usr/conf/lib/libpm.a(pm_ptrace.o)

	OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP:
	/usr/conf/lib/libpm.a(pm_ptrace.o)

what(1) Output:
	
	OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP:
	/usr/conf/lib/libpm.a(pm_ptrace.o):
		pm_ptrace.c $Date: 2001/10/26 12:06:58 $Revision: r1
			1.11/1 PATCH_11.11 (PHKL_25593)

	OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP:
	/usr/conf/lib/libpm.a(pm_ptrace.o):
		pm_ptrace.c $Date: 2001/10/26 12:06:58 $Revision: r1
			1.11/1 PATCH_11.11 (PHKL_25593)

cksum(1) Output:
	
	OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_32,v=HP:
	1859040215 48240 /usr/conf/lib/libpm.a(pm_ptrace.o)

	OS-Core.CORE2-KRN,fr=B.11.11,fa=HP-UX_B.11.11_64,v=HP:
	3478241290 114024 /usr/conf/lib/libpm.a(pm_ptrace.o)

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches:
	PHKL_24116:
	s700: 11.00
	s800: 11.00

Patch Package Size: 180 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_25593

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHKL_25593.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHKL_25593.  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_25593.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHKL_25593.depot

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

		dd if=/tmp/PHKL_25593.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None