Shared memory

Michiel Bacchiani (
Sun, 1 Sep 1996 18:05:23 -0400 (EDT)

I contacted Alan Cox about a number of behavior issues I observed using
socket system calls. I also would appreciate some comments on the
behavior I observed using shared memory. He suggested me to send
this issue to you.

> When using the shared memory feature, multiple calls to shmctl
> for destruction of a shared memory segment (shmctl using the IPC_RMID
> command) never return an error condition. I didn't test enough to see
> if this actually leads to instability but I think that this isn't a
> desired feature. Once again, for comparison sake, under Solaris an
> error condition is returned when an attempt is made to remove an
> already removed shared memory segment.

Your comments would be greatly appreciated,

Best regards,

Michiel Bacchiani.