OpenVMS CSCPAT_1015 Terminal Driver V5.5 - V5.5-2H4 ECO Summary
Copyright (c) Digital Equipment Corporation 1994. All rights reserved.
OP/SYS: OpenVMS VAX
COMPONENTS: Terminal Driver (TTDRIVER)
SOURCE: Digital Equipment Corporation
ECO INFORMATION:
ECO Kit Name: VAXTTDR09_U2055
ECO Kits Superseded by This ECO Kit: VAXTTDR08_U2055
VAXTTDR07_U2055
VAXTTDR05_U2055
TTDRV$01_U2055
ECO Kit Approximate Size: 108 Blocks
Kit Applies To: OpenVMS VAX V5.5, V5.5-1, V5.5-2, V5.5-2H4
System Reboot Necessary: Yes
NOTE: OpenVMS VAX V5.5-2H4 is a limited hardware release, shipped only
with the new systems (or system upgrades) listed below. It is not
separately orderable and will not be distributed via Consolidated
Distribution.
o VAX 4000 Model 100A
o VAX 4000 Model 500A
o VAX 4000 Model 600A
o VAX 4000 Model 700A
ECO KIT SUMMARY:
An ECO kit exists for TTDRIVER on OpenVMS VAX V5.5 through V5.5-2H4. This
kit addresses the following problems:
PROBLEMS ADDRESSED IN VAXTTDR09_U2055 KIT
o BCNT problem for SMART READ.
Users are unable to use the third party package IRIS. This
3rd party code is a mid-driver, meaning it is between the
terminal class driver and the port driver. The driver uses
the IRP$W_BCNT field which is negative (FFFx), causing a fatal
bugcheck (SSRVEXCEPT).
This problem is fixed in V6.1 for the terminal driver, but a 3rd
party is looking at the byte count before the field is
cleared. The problem is caused by a noisy line and a bad
escape sequence termination.
PROBLEMS ADDRESSED IN VAXTTDR08_U2055
o When the DCL SEARCH command is used with the /HIGHLIGHT qualifier
(which is the default), the line does not wrap at the correct
position on the terminal screen.
o Data Terminal Ready De-assertion takes more than 2 seconds on Modem
Control.
o The time between the De-assertion of Carrier Detect (CD) and Data
Terminal Ready (DTR) is greater than the 2 seconds recommended for
modem control.
This problem is fixed in OpenVMS VAX V6.0.
o SSRVEXCEPT occurs in routine IO_POST (in MOVBUF) because the
IRP$W_BCNT field is negative (FFFx) and tries to copy 64k of buffer
space.
This problem is fixed in OpenVMS VAX V6.1.
o INVEXCEPTN bugcheck occurs at TTDRIVER+2554. This problem is caused
by POSIX related code in the TTDRIVER.
This problem is fixed in OpenVMS VAX V6.1.
o INVEXCEPTN bugcheck occurs with the PC equal to
SCH$RELEASE_CAPABILITY+0066. This problem is also caused by POSIX
related code in the TTDRIVER.
This problem is fixed in OpenVMS VAX V6.1.
o Carrier (CAR) modem signal is dropped at the wrong time and is not
reset properly.
This problem is fixed in OpenVMS VAX V6.1.
o TTDRIVER fork routines 'LINKFORK' and 'UNLINKFORK' do not require the
devicelock needed. This can corrupt the Unit Control Block (UCB).
This problem is fixed in OpenVMS VAX V6.1.
o The typeahead buffer is not cleared when the port is reset.
This problem is fixed in OpenVMS VAX V6.1.
o The Asian fields are not cleared when the port is reset.
This problem is fixed in OpenVMS VAX V6.1.
o The modem signals in TTY$SETUP_UCB are not reset properly.
This problem is fixed in OpenVMS VAX V6.1.
o R4 register corruption.
This problem is fixed in OpenVMS VAX V6.1.
o IPL 6 corruption.
This problem is fixed in OpenVMS VAX V6.1.
o TTDRIVER allows the user to set a port to COMMSYNC even if the port
does not support modem signals. This can cause the port to hang.
This problem is fixed in OpenVMS VAX V6.1.
INSTALLATION NOTES:
In order for the corrections in this kit to take effect, the system must be
rebooted. If the system is a member of a VAXcluster, the entire cluster
should be rebooted.
This patch can be found at any of these sites:
Colorado Site
Georgia Site
Files on this server are as follows:
vaxttdr09_u2055_driver.README
vaxttdr09_u2055.CHKSUM
vaxttdr09_u2055.a-dcx_vaxexe
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