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Full Discussion: Unable to remove shared memory in Redhat Linux
Operating Systems Linux Red Hat Unable to remove shared memory in Redhat Linux Post 302447011 by LinuxLearner on Friday 20th of August 2010 01:01:44 PM
Old 08-20-2010
Unable to remove shared memory in Redhat Linux
unable to remove shared memory using ipcrm -m in linux

Code:
[pin01@brmhost lib]$ ipcs -m

------ Shared Memory Segments --------
key        shmid      owner      perms      bytes      nattch     status      
0x00000000 32768      root      644        80         2                       
0x00000000 65537      root      644        16384      2                       
0x00000000 98306      root      644        280        2                       
0x00000000 196612     pin01     600        393216     2          dest         
0x00000000 229381     pin01     600        393216     2          dest         
0x00000000 262150     pin01     600        393216     2          dest         
0x00000000 294919     pin01     600        393216     2          dest         
0x00000000 327688     pin01     600        393216     2          dest         
0x00000000 360457     pin01     600        393216     2          dest         
0x00000000 393226     pin01     600        393216     2          dest         
0x00000000 425995     pin01     600        393216     2          dest         
0x00000000 458764     pin01     600        393216     2          dest         
0x00000000 491533     pin01     600        393216     2          dest

tried to remove as below:
Code:
[pin01@brmhost lib]$ ipcrm -m 196612

but still the shared memory is not removed
Code:
[pin01@brmhost lib]$ ipcs -m

------ Shared Memory Segments --------
key        shmid      owner      perms      bytes      nattch     status      
0x00000000 32768      root      644        80         2                       
0x00000000 65537      root      644        16384      2                       
0x00000000 98306      root      644        280        2                       
0x00000000 196612     pin01     600        393216     2          dest         
0x00000000 229381     pin01     600        393216     2          dest         
0x00000000 262150     pin01     600        393216     2          dest         
0x00000000 294919     pin01     600        393216     2          dest         
0x00000000 327688     pin01     600        393216     2          dest         
0x00000000 360457     pin01     600        393216     2          dest         
0x00000000 393226     pin01     600        393216     2          dest         
0x00000000 425995     pin01     600        393216     2          dest         
0x00000000 458764     pin01     600        393216     2          dest         
0x00000000 491533     pin01     600        393216     2          dest    
196612

any help from any one ?
Thanks
 

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LEARN ABOUT HPUX

ipcrm

ipcrm(1)						      General Commands Manual							  ipcrm(1)

NAME

       ipcrm - remove a message queue, semaphore set, or shared memory identifier

SYNOPSIS

       [option]...

DESCRIPTION

       The command removes one or more specified message queue, semaphore set, or shared memory identifiers.

   Options
       The identifiers are specified by the following options:

	      Remove the shared memory identifier
			     shmid  from the system.  The shared memory segment and data structure associated with it are destroyed after the last
			     detach.

	      Remove the message queue identifier
			     msqid from the system and destroy the message queue and data structure associated with it.

	      Remove the semaphore identifier
			     semid from the system and destroy the set of semaphores and data structure associated with it.

	      Remove the shared memory identifier, created with key
			     shmkey, from the system.  The shared memory segment and data structure associated with it	are  destroyed	after  the
			     last detach.

	      Remove the message queue identifier, created with key
			     msgkey, from the system and destroy the message queue and data structure associated with it.

	      Remove the semaphore identifier, created with key
			     semkey, from the system and destroy the set of semaphores and data structure associated with it.

       The  details  of  the  removals	are described in msgctl(2), shmctl(2), and semctl(2).  The identifiers and keys can be found by using (see
       ipcs(1)).

SEE ALSO

       ipcs(1), msgctl(2), msgget(2), msgop(2), semctl(2), semget(2), semop(2), shmctl(2), shmget(2), shmop(2).

STANDARDS CONFORMANCE

																	  ipcrm(1)
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