unable to kill shared memory

[Binu_5]

Hi all

I have some problem with removing shared memmory
if I use ipscs the output looks like
ey shmid owner perms bytes nattch status
0x00000000 17760256 naveens 666 33562624 1 dest

if I give ipcrm -s 17760256

it stil does'nt remove shared memmory

Please help

Binu

[Gopi Sekar]

you are using invalid key for removing shared memory.

to remove shared memory use 'ipcrm -m 17760256'

-s is for removing semaphore

Hope this helps,
Gopi

[Binu_5]

Hi Gopi

I have tried with -m too but the problem
still persist ...Is there any other option other than reboot

Thanks
Binu

[Gopi Sekar]

from man page of ipcrm
-m shmid
removes the shared memory segment identified by shmid after the last detach is performed.


from the output of your ipcs, it looks like there is still one more process which is attached to that shared memory. find out that process and kill it. then u should be able to remove it using ipcrm -m

use this command to find out who is using that shared memory

ipcs -m -p

it will give you shared memory id, pid of creator and last accessed pid. check the pid owner and kill him if not required.

then you should be able to do ipcrm.

Hope this helps,
Gopi

[Binu_5]

Hi Sekar

Thanks for the info ..Then how can I kill
all the procees initited by a particular user ...

Thanks
Binu

[Gopi Sekar]

you can use either killall or pkill

pkill has option to kill all the process running on a particular user id.


Hope this helps,
Gopi

[Steven E. Protter]

If you can kill it, boot it.

Some shared memory problems can't be fixed.

SEP

[Ross Minkov]

reboot

;-)