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| Title: | VAX and Alpha VMS |
| Notice: | This is a new VMSnotes, please read note 2.1 |
| Moderator: | VAXAXP::BERNARDO |
|
| Created: | Wed Jan 22 1997 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 703 |
| Total number of notes: | 3722 |
678.0. "Shmnotcnct, shared memory not connected" by TAINO::RFONSECA () Tue Jun 03 1997 10:28
Customer running OpenVMS 6.2-1h3 on a AlphaServer 2100. They are
currently converting their VAX applications to Alpha. Yesterday the
Alpha was rebooted because some power problems and today they are
receiving the following message while accessing the online screens:
system-f-SHMNOTCNCT
Whith the help/message I was able to obtain additional information but
it doesn;t make much sense to me. Can somebody provide a clear
explanation on this situation ? Below is the info from the
help/message:
SHMNOTCNCT, shared memory not connected
Facility: SYSTEM, System Services
Explanation: The shared memory specified (that is, that part of the
name to the left of the colon [:]) is not connected to
this processor. This error also occurs when colons are
inadvertently placed in common event flag cluster,
mailbox, or global section names.
User Action: Connect the shared memory.
P.S. - This behavior is presented by most of the code. The same code
is running on other AXP boxes witht problems.
| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 678.1 | Probably bogus... | GIDDAY::GILLINGS | a crucible of informative mistakes | Tue Jun 03 1997 21:02 | 6 |
| The message is specific to an ancient form of shared memory used on
VAX 780s. The most likely reason you're seeing it on any modern system is
a bogus status code. The status value is 829 (hex 33D). Most likely some
program or function is leaving that value in R0 and it's being interpreted
as a status code.
John Gillings, Sydney CSC
|
| 678.2 | | ACISS2::LENNIG | Dave (N8JCX), MIG, @CYO | Tue Jun 03 1997 22:01 | 4 |
| I wonder how much of this 'ancient form of shared memory' logic is
going to get a revival with Galaxies. The 782's sharing of memory
between two processors running seperate copies of the OS was the
first thing that came to mind when I started reading about it...
|
| 678.3 | we took a look | EVMS::GRANT | | Wed Jun 04 1997 09:44 | 6 |
| Not on the topic of the base note, but.....
We looked at the VAX shared memory code and documentation during our
Galaxy investigation. The code may not reappear but it gave us food
for thought.
|