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Full Discussion: shmat() permission denied, what's this?
Operating Systems HP-UX shmat() permission denied, what's this? Post 73274 by km4hr on Monday 30th of May 2005 04:37:22 PM
Old 05-30-2005
thanks perderabo,

that's the boost I needed to get me over the hump.

when the daemon process was first started on the system it's executable file had the wrong group designation. I changed the group of the file and restarted the daemon. However "ipcs -m" showed that the deamon memory segment group didn't change. Furthermore, I noticed the segment was not destroyed when the daemon was killed. I used "ipcrm" to remove the memory segment manually. Then I started the daemon again. This time "ipcs -m" showed the daemon's memory segment in the correct group. Now all users can run the app properly.

thanks again for the tip.
 

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LEARN ABOUT MOJAVE

ipcrm

ipcrm(1)						    BSD General Commands Manual 						  ipcrm(1)

NAME

     ipcrm -- remove the specified message queues, semaphore sets, and shared memory segments

SYNOPSIS

     ipcrm [-M shmkey] [-m shmid] [-Q msgkey] [-q msqid] [-S semkey] [-s semid] ...

DESCRIPTION

     Ipcrm removes the specified message queues, semaphores and shared memory segments.  These System V IPC objects can be specified by their cre-
     ation id or any associated key.

     The following options are used to specify which IPC objects will be removed.  Any number and combination of these options can be used:

     -M shmkey
	     Mark the shared memory segment associated with key shmkey for removal.  This marked segment will be destroyed after the last detach.

     -m shmid
	     Mark the shared memory segment associated with id shmid for removal.  This marked segment will be destroyed after the last detach.

     -Q msgkey
	     Remove the message queue associated with key msgkey from the system.

     -q msqid
	     Remove the message queue associated with the id msqid from the system.

     -S semkey
	     Remove the semaphore set associated with key semkey from the system.

     -s semid
	     Removes the semaphore set associated with id semid from the system.

     The identifiers and keys associated with these System V IPC objects can be determined by using ipcs(1)

SEE ALSO

     ipcs(1)

BSD
								  August 8, 1994							       BSD
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