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Patch 3445 : SCSI disk driver rollup #3 : [IRIX 6.2]
INDEX
RELATIONS
RELEASE NOTES
1. Patch SG0003445 Release Note
This release note describes patch SG0003445 to IRIX 6.2.
1.1 Supported Hardware Platforms
This patch contains bug fixes for all platforms.
1.2 Supported Software Platforms
This patch contains bug fixes for IRIX Execution Environment
(version 1232792137) on a system running IRIX 6.2. The
software cannot be installed on other configurations.
1.3 Patch relationships
This patch replaces patches SG0001421, SG0001713 and
SG0002200.
1.4 Bugs Fixed by Patch SG0003445
This patch contains fixes for the following bugs in IRIX
6.2. Bug numbers from Silicon Graphics bug tracking system
are included for reference.
o 579552 This fix prevents "[Alert] Unexpected blank
media:..." worning to be reported when the underlying
check condition is a result of dkscopen attempt to read
a volume header from music cdrom.
o 640105 DKS_base script was deadlocking if hinv output
is too large
o 626228 SCSI_base was not properly creating /dev/scsi/sc
nodes for disks with non-zero luns attached to
integrated scsi controller
This patch also "rolls up" and replaces patches 1713 and
1421 and 2200. Patch 2200 fixed the bugs list below:
o 502313 Following a SCSI bus reset, or due to some
internal condition, some devices would return asc0x04
asq0x01 or asq0x00 to indicate they are currently not
ready but are in the process of becoming ready. This
condition could persist for several seconds. The disk
driver used to retry the associated command once and
then initiated a SCSI bus reset. The fix was to retry
such a condition, with a exponentially increasing retry
delay, for a total period of up to 4 minutes. Patch
1713 fixed the bugs list below:
Patch 1713 in turn fixed the bugs list below:
o The disk scheduler is not giving fair access to the
disk when there is one sequential stream and other
random streams. The single sequential stream of
requests could starve out other requests for a long
time. (Bug #411974 and Bug #452572)
o A pointer to a string was being truncated to 32 bits
when printing an error message; this caused system
panics on systems with IRIX64 kernels and the wd93 SCSI
driver. This error occurred somewhat frequently with
SoftWindows95 CDROM access. (Bug #465174)
Patch 1421 in turn fixed the bugs list below:
o When a program uses the DIOCSELECT ioctl to change a
disk drive's block size, the SCSI disk driver does not
realize that the block size has changed, and subsequent
I/O operations fail. This bug prevented SoftWindows95
from using CD-ROMs. (Bug #389784)
1.5 Subsystems Included in Patch SG0003445
This patch release includes these subsystems:
o patchSG0003445.eoe1_sw.unix
1.6 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
1.7 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.
1.8 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): 14787 553 patchSG0003445.eoe_sw 21100 12 patch/README.patch.3445 10787 2 patchSG0003445 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: 20021117073605-IRIXPatch-1320
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