From: Rhonda Powers <rhondap@caldera.com>
Subject: UW711 SLSs for NonStop Clusters
Date: Fri, 31 Mar 2000 16:36:03 GMT
The following Support Level Supplement (SLS) is available for downloading
from the "SLS" directory at ftp.caldera.com:
nsc1009a: UnixWare 7.1.1 SLSs for NonStop Clusters
URLs associated with this SLS are:
ftp://stage.caldera.com/SLS/nsc1009a.Z
ftp://stage.caldera.com/SLS/nsc1009a.txt
This SLS installs on the following platform(s):
UnixWare 7 NonStop Clusters Release 7.1.1

Description:
This SLS has bundled these required UnixWare 7.1.1 patches for
installation on the UnixWare 7 NonStop Clusters 7.1.1 product:
(1) SLS ptf7080b: UnixWare 7.0.0, 7.0.1 and 7.1.1 ticots and ticodsor
Supplement.
Problem addressed:
A client/server program that uses socketpair(3) and uses this to
write/read data and do I_SENDFD/I_RECVFD, can fail with EINVAL on read.
(2) SLS ptf7601b: UnixWare 7.1.1 inet and socksys Driver Supplement
Problems addressed:
1. With kma_paranoid running, the system can panic after finding
corrupt free buffers.
mtt_replace() can corrupt the links if both "new" and "old"
currently have no minor number assigned.
2. Applications that use t_optmgmt() may cause system panic.
3. If a connect(3) is attempted using AF_UNIX to a port without a listener,
this correctly fails with ECONNREFUSED. However, if a listener is then
started and the connect(3) attempted again without closing the socket,
the connect(3) will succeed but a subsequent write will fail with EPIPE.
4. If listen(3) is called with a backlog of 0, UnixWare 7.1.1 does not
accept any connections.
5. In-Kernel Sockets causes an application built on SCO UnixWare 2.1.x to
block without a SIGALARM signal.
(3) SLS ptf7605c: UnixWare 7.1.1 io, log and util Driver Supplement
Problems addressed:
1. cpio was not able to create a volume greater than 2GB on the tape device.
The limit has been raised to allow for up to 4GB volume size.
2. Machine hangs may occur if syslogd is enabled.
(4) SLS ptf7607a: UnixWare 7.1.1 libc Supplement
Problem addressed:
The pt.c functions have been enhanced to support up to 99999 ptys.
Previously, the Unix98 pty support routines could not allow more than
999 ptys to be allocated by a user process.
(5) SLS ptf7609a: UnixWare 7.1.1 pkgadd Supplement
Problem addressed:
pkgadd(1M) may fail from a tape with:
UX:cpio: HALT: Bad magic number/header.
1 error
UX:pkgadd: ERROR: attempt to process package from
</dev/rmt/c0b0t2l0> failed
(6) SLS ptf7611a: UnixWare 7.1.1 pdimkdev Supplement
Problem addressed:
sdighost -r [see sdighost(1M)] does not permanently remove the names
of disks in the sdi database that do not correspond to any physical
disks on the system ('phantom' disks).
With SLS ptf7611a, sdighost -r removes unwanted "vtoc" entries from the
resmgr database and updates the configuration regardless of whether there
are any ghost disks or not.
(7) SLS ptf7612a: UnixWare 7.1.0 ping Supplement
Problem addressed:
ping can hang and never time out.
(8) SLS ptf7613a: UnixWare 7.1.0 and 7.1.1 iasy Driver Supplement
Problem addressed:
Unable to log in from a serial terminal using an xon/xoff cable.
(9) SLS ptf7614a: UnixWare 7.1.1 scodb Driver Supplement
Problem addressed:
scodb cannot be loaded. /car/asm/log/osmlog displays this message:
Undefined symbol db_cp_active in loadable module /etc/conf/pack.d/scodb
(10) SLS ptf7616a: UnixWare 7.1.1 specfs Driver Supplement
Problem addressed:
Disk corruption seen with PAE on, and greater than 4GB physical
memory (all of which is general purpose) while performing I/O on
a VxVM block device.
The fix is specifically for a kernel memory corrupting issue and
is not specific to PAE or volume manager.
Note: PAE mode is enabled by setting ENABLE_4GB_MEM=YES in /stand/boot,
or by issuing this during an interactive boot.
(11) SLS ptf7618a: UnixWare 7.1.1 socksys driver supplement
Problem addressed:
In-Kernel Sockets causes an application built on SCO UnixWare 2.1.x to
block without a SIGALARM signal.
(12) SLS ptf7623a: UnixWare 7.1.1 mpio Driver Supplement
Feature enhancement:
The automatic path recovery feature enhances the failover strategy of MPIO.
When an error is encountered on an active path and no more alternate paths
are available, MPIO will attempt to repair all the failed paths. This
improves the chances of recovery because a newly repaired path may be
capable of serving the I/O.
(13) SLS ptf7624a: UnixWare 7.1.0 and 7.1.1 diskadd and diskrm Supplement
Problem addressed:
The diskadd program fails when trying to add a fiber channel hard disk
with a SCSI ID above 99. There is a two digit limit.
(14) SLS ptf7626a: UnixWare 7.1.1 proc Driver Supplement
Problems addressed:
Address space of privileged processes was user accessible.
Privileged processes could core dump.
(15) SLS ptf7627a: UnixWare 7.1.1 osocket Driver Supplement
Problem addressed:
OSR5 binaries that use rpcs (svc_register) will not run on UnixWare 7
Release 7.1.1.
(16) SLS ptf7631a: UnixWare 7.1.1 libsocket Supplement
Problem addressed:
Libsocket maintains a pointer to libresolv code. This pointer may
become stale causing core dump of Apache when used with PHP.
NonStop Cluster Problems Fixed
------------------------------
(1) OSU problems exist where mirror plexes are not correctly determined,
resulting in the associations not being properly handled on a switch.
(2) Size changes at the NFS server result in a cluster panic.
(3) Large file transfers (either using the commands: dd or cp) may take
a very long time. The correction involves replacing the CFS delay-write
algorithm with a write-behind mechanism. After writing a fixed number
of bytes sequentially, the pages are pushed to vxfs to prevent too many
dirty cfs pages. This improves the performance of large file copies on
a NonStop Clusters 7.1.1 systems.
(4) A problem exists with dlpid looping when a network cable is pulled.
----------------------------------------------------------------------------
To remove yourself from this mailing, send an email to listproc@caldera.com
with the body unsubscribe newsupplements-l and a blank subject line.
----------------------------------------------------------------------------
Enter your email address for automatic notification of new posts here
(be sure to whitelist 'feedburner.com' if you use spam filtering)
Have you tried Searching this site?
Unix/Linux/Mac OS X support by phone, email or on-site: Support Rates
This is a Unix/Linux resource website. It contains technical articles about Unix, Linux and general computing related subjects, opinion, news, help files, how-to's, tutorials and more. We appreciate comments and article submissions.

Click here to add your comments