Question

Possible Duplicate:
deleting shared memory with ipcrm in Linux

I am running Fedora 15 64 bit. I have some shared memory that wasn’t cleaned up by a process. You can see the shared memory when you call ipcs -m:

------ Shared Memory Segments --------
key        shmid      owner      perms      bytes      nattch     status      
0x51012a29 294919     trevor     666        194400     2                       

When I call ipcrm -m 294919 and then check to see if the shared memory is deleted you see:

------ Shared Memory Segments --------
key        shmid      owner      perms      bytes      nattch     status      
0x00000000 294919     trevor     666        194400     2          dest   

IMO the shared memory is still there… because it shows up when i call ipcs -m. Is this shared memory actually deleted?

Answer 1

Do a little bit of googling. Here’s what I found;

dest apparently means marked to be destroyed. I am guessing it will not be destroyed unless it is being referenced or a transitory state.

http://www.puschitz.com/TuningLinuxForOracle.shtml