Patch-ID# 117471-03

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Keywords: fifofs
Synopsis: SunOS 5.9: fifofs Patch
Date: Jul/28/2006


Install Requirements: Reboot after installation, an alternative may be in Special Install Instructions                      
                      
Solaris Release: 9

SunOS Release: 5.9

Unbundled Product: 

Unbundled Release: 

Xref: This patch available for x86 as patch 117472

Topic: SunOS 5.9: fifofs Patch
	***********************************************************
	NOTE: This patch may contain one or more OEM-specific platform ports.
	      See the appropriate OEM_NOTES file within the patch for
	      information specific to these platforms.
	      DO NOT INSTALL this patch on an OEM system if a corresponding
	      OEM_NOTES file is not present (or is present, but instructs not
	      to install the patch), unless the OEM vendor directs otherwise.
	***********************************************************

Relevant Architectures: sparc sparc.sun4u

BugId's fixed with this patch: 5036875 5098322 6376632 6396390

Changes incorporated in this version: 6376632 6396390

Patches accumulated and obsoleted by this patch: 

Patches which conflict with this patch: 

Patches required with this patch: 

Obsoleted by: 

Files included with this patch: 

/kernel/fs/fifofs
/kernel/fs/sparcv9/fifofs
/kernel/strmod/connld
/kernel/strmod/sparcv9/connld
/usr/include/sys/fs/fifonode.h
/usr/lib/adb/fifonode
/usr/lib/adb/sparcv9/fifonode

Problem Description:

6376632 writer and reader of a pipe can race and leave writer process hung.
6396390 FIFOPOLLRBAND flag should not be set to the same value as FIFOISOPEN
 
(from 117471-02)
 
Patch was regenerated to include kernel/strmod/sparcv9/connld
 
(from 117471-01)
 
5036875 pipe performance can be significantly improved
5098322 pipe performance with small buffers regressed by 5036875

Patch Installation Instructions:
--------------------------------
 
For Solaris 2.0-2.6 releases, refer to the Install.info file and/or
the README within the patch for instructions on using the generic
'installpatch' and 'backoutpatch' scripts provided with each patch.
 
For Solaris 7-10 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/104945-02
 
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:
-----------------------------
 
Reboot system after patch installation.

README -- Last modified date:  Friday, July 28, 2006