08-20-2010
What error code or message are you getting when you try to remove the shared memory?
9 More Discussions You Might Find Interesting
1. SCO
Hi all... am not so much brilliant in this area... here i think many good hearted peoples around... so if anybody have intention to reply for my problem please give me a cut and clear picture of how... Thanks.
ok comming to my problem...
In our MHC server (Sco Unix 4.*) running 19 C process... (1 Reply)
Discussion started by: yocks
1 Replies
2. Red Hat
I had two high speed 1gb mem installed on my primary mem slots. When i tried to add two PNY adp648tm-50 mem, 1gb each on the two empty mem slots, it didn't work.
However both the old and the pny mem by themselves work and the system boot up, but fails if I put all the memories in there.
Any... (0 Replies)
Discussion started by: return_user
0 Replies
3. HP-UX
I'm not an HP-UX Admin professional, but rather a Lawson ERP installer. I'm looking for clues on how to troubleshoot this issue. I have WAS 6.1 ND running on HP-UX 11.23 PA-RISC with the Lawson ERP application . When I start the Lawson application, no errors arise. When I start WAS app server, an... (4 Replies)
Discussion started by: mrvitas
4 Replies
4. Red Hat
Dear Friends ,
I am confused about shared memory in Linux . plz look @ the below output :
$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 126G 61G 59G 52% /
tmpfs 1.7G 0 1.7G 0% /dev/shm
Here , I see that every time... (1 Reply)
Discussion started by: shipon_97
1 Replies
5. Red Hat
Hello, I am using Linux os.
$ df -k /dev/shm
Filesystem 1K-blocks Used Available Use% Mounted on
tmpfs 2023256 1065000 958256 53% /dev/shm
$
Based on my google this, it is shared memory. What is this shared memory and where exactly it is used? Can you... (5 Replies)
Discussion started by: govindts
5 Replies
6. Red Hat
Hi,
i have tried to install datastage server on redhat Linux operating system. But i unable to install the datastage sevrer.
here are the details of the system.
1. Lynix installed using vmwear.
vmwear Version :7.0.1 build-227600
2. lynix version information.
uname -a
... (1 Reply)
Discussion started by: onesuri
1 Replies
7. Red Hat
While sending mail from linux server we observed below logs,
stat=Deferred: Name server: xxxxxxxxxx.: host name lookup failure
Kindly suggest what we need to change?
Thanks in Advance (2 Replies)
Discussion started by: hydoss1
2 Replies
8. Programming
So I am pretty new to the linux environment, and I am trying to create a shell that uses multiple pipes, and I read online that piping using shared memory space is more efficient than using regular piping. However, I have zero clue how to use shared memory space with pipes. Has anyone done this... (1 Reply)
Discussion started by: Greg_MC
1 Replies
9. HP-UX
Hi all,
I have 3 servers, rx2600, rx2600, and rx2660.
I have another x86 server running on Suse, and create a shared folder named /public
From 1 of the rx2600 server I can mount that shared folder :
intaqa:/>mount 10.1.2.82:/public /bkup
intaqa:/>cd /bkup
But from 2 others server I... (29 Replies)
Discussion started by: rexmale
29 Replies
IPCRM(1) Linux Programmer's Manual IPCRM(1)
NAME
ipcrm - remove a message queue, semaphore set or shared memory id
SYNOPSIS
ipcrm [ -M key | -m id | -Q key | -q id | -S key | -s id ] ...
deprecated usage
ipcrm {shm|msg|sem} id...
DESCRIPTION
ipcrm removes System V interprocess communication (IPC) objects and associated data structures from the system. In order to delete such
objects, you must be superuser, or the creator or owner of the object.
System V IPC objects are of three types: shared memory, message queues, and semaphores. Deletion of a message queue or semaphore object is
immediate (regardless of whether any process still holds an IPC identifier for the object). A shared memory object is only removed after
all currently attached processes have detached (shmdt(2)) the object from their virtual address space.
Two syntax styles are supported. The old Linux historical syntax specifies a three letter keyword indicating which class of object is to
be deleted, followed by one or more IPC identifiers for objects of this type.
The SUS-compliant syntax allows the specification of zero or more objects of all three types in a single command line, with objects speci-
fied either by key or by identifier. (See below.) Both keys and identifiers may be specified in decimal, hexadecimal (specified with an
initial '0x' or '0X'), or octal (specified with an initial '0').
OPTIONS
-M shmkey
removes the shared memory segment created with shmkey after the last detach is performed.
-m shmid
removes the shared memory segment identified by shmid after the last detach is performed.
-Q msgkey
removes the message queue created with msgkey.
-q msgid
removes the message queue identified by msgid.
-S semkey
removes the semaphore created with semkey.
-s semid
removes the semaphore identified by semid.
The details of the removes are described in msgctl(2), shmctl(2), and semctl(2). The identifiers and keys may be found by using ipcs(1).
NOTES
In its first Linux implementation, ipcrm used the deprecated syntax shown in the SYNOPSIS. Functionality present in other *nix implementa-
tions of ipcrm has since been added, namely the ability to delete resources by key (not just identifier), and to respect the same command-
line syntax. For backward compatibility the previous syntax is still supported.
SEE ALSO
ipcs(1), ipcmk(1), msgctl(2), msgget(2), semctl(2), semget(2), shmctl(2), shmdt(2), shmget(2), ftok(3)
AVAILABILITY
The ipcrm command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
ipcrm last change: 19 March 2002 IPCRM(1)