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Patch 3055 : Irix 6.2 tcsh and cpio fixes : [IRIX 6.2]
INDEX
RELATIONS
RELEASE NOTES
1. Patch SG0003055 Release Note
This release note describes patch SG0003055 to IRIX 6.2.
Patch SG0003055 complements IRIX 6.2 kernel rollup patches
starting with patch1488. In patch1488 a change was
introduced into the semantics of the BSDsetpgrp() system
call which caused /usr/bin/tcsh to start failing
intermittently on command pipelines, yielding the error
message:
setpgid child:
: Operation not permitted
This patch fixes that problem and others in tcsh and cpio.
Patch 3055 replaces patch1760 and patch2784.
1.1 Supported Hardware Platforms
This patch contains bug fixes for all hardware
configurations.
1.2 Supported Software Platforms
This patch contains bug fixes for tcsh on a system running
running IRIX 6.2 with kernel rollup patch1488 or later. The
software cannot be installed on other configurations.
1.3 Bugs Fixed by Patch SG0003055
This patch contains fixes for the following bugs in IRIX 6.2
with kernel rollup patch1488 or later. Bug numbers from
Silicon Graphics bug tracking system are included for
reference.
o Bug #543281: fixes the y2k problem with the '%y' in the
prompt string.
o Bug #454086: ``setpgid child: Error reported when using
pipes on the command line.'' IRIX 6.2 kernel rollup
patches starting with patch1488 introduced a new, more
restricted (and standard) semantic for the BSDsetpgrp()
system call. Prior to patch1488 the BSDsetpgrp() call
would accept any process group ID. Patch1488 added
logic to BSDsetpgrp() to reject illegal process group
IDs in a manner which conforms to POSIX standards and
the latest versions of current BSD based operating
systems (including the official 4.4BSD release from the
Computing Systems Research Group at the University of
California, at Berkeley). Unfortunately /usr/bin/tcsh
had been compiled with options which required the much
older relaxed semantics of setpgrp(). With the more
restricted semantics, tcsh command pipelines will
intermittently fail on multi-processor systems with the
error message:
setpgid child:
: Operation not permitted
This patch fixes this problem in tcsh (simply by
recompiling it with options indicating that tcsh should
allow for POSIX set process group semantics and
restrictions).
o Bugs #194054 and #351230: fixes some problems related
to yp.
o Bug #586523: fixes a problem which occurs when glob()
calls opendir() with a filename that does not represent
a directory.
o Bug #391138: fix to handle the case of execv() failing
with errno EBADRQC.
o Bugs #282141 and #298251: make sure that tcsh correctly
resets tty when recovering from a read error.
o Bug #357539: fixes cpio dumping core on symlink on
end-of-buffer condition
1.4 Subsystems Included in Patch SG0003055
This patch release includes these subsystems:
o patchSG0003055.eoe_sw.unix
1.5 Installation Instructions
Because you want to install only the patches for problems
you have encountered, patch software is not installed by
default. After reading the descriptions of the bugs fixed
in this patch (see Section 1.3), determine the patches that
meet your specific needs.
If, after reading Sections 1.1 and 1.2 of these release
notes, you are unsure whether your hardware and software
meet the requirements for installing a particular patch, run
inst. The inst program does not allow you to install
patches that are incompatible with your hardware or
software.
Patch software is installed like any other Silicon Graphics
software product. Follow the instructions in your Software
Installation Administrator's Guide to bring up the miniroot
form of the software installation tools.
Follow these steps to select a patch for installation:
1. At the Inst> prompt, type
install patchSGxxxxxxx
where xxxxxxx is the patch number.
2. Initiate the installation sequence. Type
Inst> go
3. You may find that two patches have been marked as
incompatible. (The installation tools reject an
installation request if an incompatibility is
detected.) If this occurs, you must deselect one of
the patches.
Inst> keep patchSGxxxxxxx
where xxxxxxx is the patch number.
4. After completing the installation process, exit the
inst program by typing
Inst> quit
1.6 Patch Removal Instructions
To remove a patch, use the versions remove command as you
would for any other software subsystem. The removal process
reinstates the original version of software unless you have
specifically removed the patch history from your system.
versions remove patchSGxxxxxxx
where xxxxxxx is the patch number.
To keep a patch but increase your disk space, use the
versions removehist command to remove the patch history.
versions removehist patchSGxxxxxxx
where xxxxxxx is the patch number.
1.7 Known Problems INST SUBSYSTEM REQUIREMENTS No Requirements Information Available. INST SUBSYSTEM CHECKSUMS These checksums help to provide a 'signature' for the patch inst image which can be used to authenticate other inst images. You can obtain this kind of output by running sum -r on the image (from the command line): 10247 2 patchSG0003055 48064 1107 patchSG0003055.eoe_sw 14914 2 patchSG0003055.idb INST SUBSYSTEM FILE LISTINGS The following lists the files which get installed from each subsystem in the patch:
DOWNLOAD PATCH
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Document Id: 20021117071705-IRIXPatch-1225
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