OpenVMS VMS721_LIBRTL-V0100 Alpha V7.2-1 LIBRTL ECO Summary
TITLE: OpenVMS VMS721_LIBRTL-V0100 Alpha V7.2-1 LIBRTL ECO Summary
New Kit: 05-DEC-2000
Modification Date: 15-FEB-2001
Modification Type: Corrected typo in file name.
NOTE: An OpenVMS saveset or PCSI installation file is stored
on the Internet in a self-expanding compressed file.
For OpenVMS savesets, the name of the compressed saveset
file will be kit_name.a-dcx_vaxexe for OpenVMS VAX or
kit_name.a-dcx_axpexe for OpenVMS Alpha. Once the OpenVMS
saveset is copied to your system, expand the compressed
saveset by typing RUN kitname.dcx_vaxexe or kitname.dcx_alpexe.
For PCSI files, once the PCSI file is copied to your system,
rename the PCSI file to kitname-dcx_axpexe.pcsi, then it can
be expanded by typing RUN kitname-dcx_axpexe.pcsi. The resultant
file will be the PCSI installation file which can be used to install
the ECO.
OP/SYS: OpenVMS Alpha
COMPONENT: LIBRTL
SOURCE: Compaq Computer Corporation
ECO INFORMATION:
ECO Kit Name: VMS721_LIBRTL-V0100
DEC-AXPVMS-VMS721_LIBRTL-V0100--4.PCSI
ECO Kits Superseded by This ECO Kit: None
ECO Kit Approximate Size: 4304 Blocks
Kit Applies To: OpenVMS Alpha V7.2-1
System/Cluster Reboot Necessary: Yes
Rolling Re-boot Supported: Yes
Installation Rating: INSTALL_3
3 - To be installed on all systems running
the listed versions of OpenVMS which
are experiencing the problems described.
Kit Dependencies:
The following remedial kit(s) must be installed BEFORE
installation of this kit:
VMS721_UPDATE-V0100
VMS721_PCSI-V0100
In order to receive all the corrections listed in this
kit, the following remedial kits should also be installed:
None
NOTE: DATMISMCH errors may occur in IMAGELIB when linking against
LIBRTL after installing VMS721_LIBRTL-V0100 (this kit). The
IMAGELIB may be inserted manually to correct this problem by
issuing the following command from a privileged account. Use
of the SYSTEM account is suggested.
$ LIBRARY/REPLACE SYS$SHARE:IMAGELIB SYS$SHARE:LIBRTL.EXE
ECO KIT SUMMARY:
An ECO kit exists for LIBRTL on OpenVMS Alpha V7.2-1.
This kit addresses the following problems:
Problems Addressed in VMS721_LIBRTL-V0100:
o A memory leak occurs when using LIB$FIND_FILE/LIB$FIND_FILE_END
with long file names (flags=LIB$M_FIL_LONG_NAMES).
Images Affected: [SYSLIB]LIBRTL.EXE
[SYSLIB]LIBRTL_INSTRUMENTED.EXE
o A synchonization failure occurs for multithread programs using
the DEC C RTL routine malloc and free with "long" pointers (P2
space heap routines). These DEC C RTL routines in turn use
the LIBRTL Routines LIB$VM_MALLOC_64 and LIB$VM_FREE_64.
Symptoms could be varied, including "%LIB-F-MEMALRFRE, memory
already free" errors.
For an application to see this problem it would have to have
the following characteristics:
1. Call the DEC C RTL routines malloc and free
2. Be multithreaded
3. Be compiled with the /POINTER_SIZE=LONG and
/REENTRANCY=MULTITHREAD switches
4. Be linked /THREADS_ENABLE=(MULTIPLE_KERNEL_THREADS,UPCALLS)
5. Run on a multiprocessor system with kernel threads
enabled.
Note that programs using the "normal" P0 heap routines are not
affected by this problem.
Images Affected: [SYSLIB]LIBRTL.EXE
[SYSLIB]LIBRTL_INSTRUMENTED.EXE
o The LIB$CREATE_DIR RTL routine is documented to accept 64 bit
parameters. However, passing a 64 bit descriptor to the
routine fails with a LIB$_INVSTRDES error or passing a 64 bit
address may result in an SS$_ACCVIO error.
Images Affected: [SYSLIB]LIBRTL.EXE
[SYSLIB]LIBRTL_INSTRUMENTED.EXE
o A program can fail with the following error:
%LIB-W-ILLRECTYP, illegal record type (nnn)
%TRACE-W-TRACEBACK, symbolic stack dump follows
followed by:
%SYSTEM-F-ACCVIO, access violation, reason mask=00,
virtual address=0000000000000008, PC=nnnnnnnnnnnnnnnn,
PS=0000001B
if the program:
1. Is created that is directly linked with a shareable image
2. Calls LIB$FIND_IMAGE_SYMBOL to find an entry point in the
same shareable image
3. The program is executed and the user creates a new version
of the shareable image while the program is executing
Images Affected: [SYSLIB]LIBRTL.EXE
[SYSLIB]LIBRTL_INSTRUMENTED.EXE
o LIB$FIND_IMAGE_SYMBOL fails to locate symbols for images whose
record attributes have been altered.
This has been seen with DCOM as follows:
$ mcr DCOM$COMREGEDT
%SYSTEM-F-ACCVIO, access violation, reason mask=00,
virtual address=0000000000000008, PC=0000000000B43348,
PS=0000001B
Improperly handled condition, image exit forced.
Signal arguments: Number = 0000000000000005
Name = 000000000000000C
0000000000000000
0000000000000008
0000000000B43348
000000000000001B
Images Affected: [SYSLIB]LIBRTL.EXE
[SYSLIB]LIBRTL_INSTRUMENTED.EXE
o LIB$FIND_IMAGE_SYMBOL fails for images on disks whose device
names are more than 13 characters - which generally means a 3
digit unit number.
Images Affected: [SYSLIB]LIBRTL.EXE
[SYSLIB]LIBRTL_INSTRUMENTED.EXE
o In the case of a $ PRINT [X]FOO.PRF,;-1 command, LIB$FIND_FILE
may fail to find the second file (;-1). This problem may be
seen with certain DCL commands, such as PRINT, and with user
application calls to LIB$FIND FILE when LIB$M_FIL_LONG_NAMES
and the "multiple" flags are set (bits 1 and 2 of the flags
argument).
Images Affected: [SYSLIB]LIBRTL.EXE
[SYSLIB]LIBRTL_INSTRUMENTED.EXE
o A failure to unwind properly occurs when a large amount of
stack space is being used. This could result in an improperly
handled condition error, or a bad stack notification, or other
error.
Images Affected: [SYSLIB]LIBRTL.EXE
[SYSLIB]LIBRTL_INSTRUMENTED.EXE
INSTALLATION NOTES:
The images in this kit will not take effect until the system is
rebooted. If there are other nodes in the VMScluster, they must
also be rebooted in order to make use of the new image(s).
If it is not possible or convenient to reboot the entire cluster at
this time, a rolling re-boot may be performed.
Install this kit with the POLYCENTER Software installation utility
by logging into the SYSTEM account, and typing the following at the
DCL prompt:
PRODUCT INSTALL VMS721_LIBRTL /SOURCE=[location of Kit]
The kit location may be a tape drive, CD, or a disk directory that
contains the kit.
Additional help on installing PCSI kits can be found by typing
HELP PRODUCT INSTALL at the system prompt
All trademarks are the property of their respective owners.
This patch can be found at any of these sites:
Colorado Site
Georgia Site
Files on this server are as follows:
dec-axpvms-vms721_librtl-v0100--4.README
dec-axpvms-vms721_librtl-v0100--4.CHKSUM
dec-axpvms-vms721_librtl-v0100--4.pcsi-dcx_axpexe
vms721_librtl-v0100.CVRLET_TXT
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