OBSOLETE Patch-ID# 105077-06
Keywords: security fifofs threads hang O_RDONLY O_RDWR panic kmem_flags I_PEEK
Synopsis: Obsoleted by: 103640-40 SunOS 5.5.1: /kernel/fs/fifofs patch
Date: May/25/2000

Solaris Release: 2.5.1

SunOS Release: 5.5.1

Unbundled Product: 

Unbundled Release: 

Xref: This patch available for x86 as patch 105078

Topic: SunOS 5.5.1: /kernel/fs/fifofs patch

Relevant Architectures: sparc

BugId's fixed with this patch: 4050461 4090929 4149694 4166116 4211236 4302216

Changes incorporated in this version: 4302216

Patches accumulated and obsoleted by this patch: 

Patches which conflict with this patch: 
	NOTE:  Refer to Special Install Instructions section for 
               IMPORTANT specific information on this patch.
	NOTE:iss_sparc-01 (or newer)


Patches required with this patch: 

Obsoleted by: 103640-40

Files included with this patch: 

/kernel/fs/fifofs

Problem Description:

4302216 Sleeping in poll when data ready on stream read queue
(from 105077-05)
4090929 system panics due to infinite recursion in prrealvp
(from 105077-04)
4211236 I_PEEK ioctl on fifo doesn''t release fn_lock on error
(from 105077-03)
4149694 2.6 machine panic in fifo_connld() when kmem_flags set to 0x3f.
(from 105077-02)
4166116 Panic in streams code at strvp2wq+8
(from 105077-01)
4050461 fifofs - read threads could hang in open even though a writer opens

Patch Installation Instructions:
-------------------------------- 
Refer to the Install.info file within the patch for instructions on
using the generic ''installpatch'' and ''backoutpatch'' scripts provided
with each patch.  Any other special or non-generic installation
instructions should be described below.

Special Install Instructions:
-----------------------------
	NOTE : 	TO GET THE COMPLETE FIX FOR 4090929 (system panics
               	due to infinite recursion in prrealvp) ONE ALSO
		NEEDS TO INSTALL THE FOLLOWING PATCH:
	  	107467-01 (or newer version)   /kernel/fs/specfs

README -- Last modified date:  Tuesday, April 16, 2002