How can the shared memory object be undeletable when all shared memory segments belong to the same user?

[Konstantin Belousov]

On Tue, Aug 22, 2017 at 06:10:14PM -0700, Yuri wrote:
> On 08/12/17 02:03, Konstantin Belousov wrote:
> >> Only renaming of the shared memory object in the code or reboot helped.
> > Root should be able to unlink it.
> 
> 
> Isn't shared memory supposed to be deleted when the last app that used 
> it quits, gracefully or not?

Yes for anonymous, no for named.