process shared mutexes?

[Volker Lendecke]

On Mon, Nov 21, 2016 at 05:10:40PM +0200, Konstantin Belousov wrote:
> Please see the libthr(3) man page, in particular, read the RUN-TIME
> SETTINGS section, the description of the kern.ipc.umtx_vnode_persistent
> sysctl.

One more question: man libtrh(3) says that this behaviour is allowed
by Posix. Do you have a reference that is available online? Or do I
have to buy the Posix standards documents?

Thanks,

Volker