Disclaimer: 

Please note: Although OBSOLETED patches are available on SunSolve, Sun recommends using the most recent patches and the most recent revision of those patches. OBSOLETED patches do not include the latest bug fixes and/or product enhancements, and may require the installation of additional patches as a corrective measure.

Status: OBSOLETE

Patch Id: 120754-03

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Summary: Obsoleted by: 120754-05 SunOS 5.10_x86: Microtasking libraries (libmtsk) patch

Date:  Nov/08/2006

Installation Requirements:

NA

Solaris Release: 10_x86

Sun OS Release: 5.10_x86

Unbundled Product: 

Unbundled Release: 

Xref: This patch available for sparc as patch 120753

Topic: 

Relevant Architecture: i386

BugId's fixed with this patch:

4640927 5105585 6176541 6224639 6266200 6281454 6284576 6292619 6308531 6315352 6321653 6337239 6347707 6352080 6358139 6364604 6383140 6406413 6420938 6452506 6465769

Changes incorporated in this version:

6321653 6337239 6352080 6358139 6364604 6383140 6406413 6420938 6452506 6465769

Patches accumulated and obsoleted by this patch:

Patches which conflict with this patch: 

Required Patches:

Obsoleted by:

Files Included in this Patch: 

/lib/amd64/libmtsk.so.1
/lib/amd64/libmtsk_db.so.1
/lib/libmtsk.so.1
/lib/libmtsk_db.so.1
/usr/include/libmtsk_db.h
/usr/include/omp.h

Problem Description: 

6321653 libmtsk: Openmp/Autopar performance degrades significantly on oversubscribed systems
6337239 OpenMP: libmtsk.so does not issue a warning message when it adjusts the number of threads
6352080 OpenMP performance degradation on over subscribed system
6358139 OMP-C: incorrect run time error given when using -xarch=v9
6364604 OMP-C: using rtc with orphaned critical gives segment fault inrtc_check_critical_section
6383140 Linux: Libmtsk: pthread ID portability (openmp testcase core dumped during execution)
6406413 OMP: runtime checking doesn't give errors for improper environment variable settings
6420938 Memory leak reported in libmtsk.so.1
6452506 OpenMP: double free or corruption while using Lock Routines and SUNW_MP_WARN=TRUE
6465769 libmtsk may not create enough threads
 
(from 120754-02)
6347707 dbx dies when processing some 64-bit objects
 
(from 120754-01)
4640927: Performance dynamic scheduling in OpenMP
5105585: STACKSIZE should be more like "ulimit stacksize"
6176541: Special unwind for __mt_EndOfTask_Barrier_ needed to be implemented on x86, amd64
6224639: AMD64, 386: OpenMP: IEEE_FLAGS() doesn't work correctly
6266200: libmtsk to support public query interface
6281454: OMP: test Eompthr8 hangs if compiled with -xarch=v9
6284576: OpenMP: Incorrect number of threads created when OMP_NUM_THREADS is specified
6292619: OpenMP: Floating point exception when running application
6308531: OpenMP: SUNW_MP_THR_IDLE and spin time
6315352: Too many threads created by OpenMP runtime library

Revision History: 

120754-02 120754-01

Patch Installation Instructions: 

--------------------------------
 
Warning: libraries from 120754-01 are not changed in 120754-02 patch
 
For Solaris 8-10 releases, refer to the man pages for instructions on
using 'patchadd' and 'patchrm' scripts provided with Solaris.
Any other special or non-generic installation instructions should be
described below as special instructions.  The following example
installs a patch to a standalone machine:
 
        example# patchadd /var/spool/patch/106326-01
 
The following example removes a patch from a standalone system:
 
        example# patchrm 104945-02
 
For additional examples please see the appropriate man pages.

Special Install Instructions: 

-----------------------------
none.

README -- Last modified date:  Friday, March 30, 2007