lenny@icus.UUCP (Lenny Tropiano) (06/06/88)
I was having some problems with interprocess communications on the UNIX pc
just recently. I was getting weird results like EMT trap - core dumps on
programs that I know run. I remember something in the 3.51 books saying
their was a non-certified version of the interprocess communications driver
called "nipc", so I proceeded to unbind and deallocate the nipc driver
(I used the "Setup loadable device drivers" from the User Agent) and
then loaded "nipc". All seemed to go well. I rebooted, although I shouldn't
have to since they are dynamically allocated...
I logged in and did a ipcs to see what was in my "message queue" and
my "shared memory" blocks were set up, and I got:
$ ipcs
IPC status from /dev/kmem as of Mon Jun 6 00:24:33 1988
Message Queue facility not in system.
Shared Memory facility not in system.
Semaphore facility not in system.
What do you mean they are not a facility in the system. The programs
are running just fine (or so they seem). What should I do?
-Lenny
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UUCP : ...{mtune, ihnp4, boulder, talcott, sbcs, bc-cis}!icus!lenny ford@elgar.UUCP (Mike "Ford" Ditto) (06/08/88)
In article <381@icus.UUCP> lenny@icus.UUCP (Lenny Tropiano) writes: >$ ipcs >IPC status from /dev/kmem as of Mon Jun 6 00:24:33 1988 >Message Queue facility not in system. >Shared Memory facility not in system. >Semaphore facility not in system. > >What do you mean they are not a facility in the system. The programs >are running just fine (or so they seem). What should I do? On a "normal" SysV, ipcs does an nlist of "/unix" to find the addresses of the internal lists. On the UnixPC it has to nlist "/etc/lddrv/lipc" to get these addresses. It first does a system("/etc/lddrv/lddrv -q lipc") to see if you have ipc installed. I suggest "lddrv -d"ing all ipc drivers, renaming nipc* as lipc* and "lddrv -a"ing the one now named lipc. -=] Ford [=- "Once there were parking lots, (In Real Life: Mike Ditto) now it's a peaceful oasis. ford%kenobi@crash.CTS.COM This was a Pizza Hut, ...!sdcsvax!crash!kenobi!ford now it's all covered with daisies." -- Talking Heads