On Nov 5 16:17, Corinna Vinschen wrote: > On Nov 5 09:49, Lev Bishop wrote: > > It indeed seems this is behaviour not described in SuSv3. But several > > unices support (some variant of) this behaviour. At least linux, > > freebsd, hp-ux, solaris 10 mention it in their man pages, and openbsd > > and netbsd seem to implement it that way even though they don't > > describe it in the man pages. > > Yeah, we're using the FreeBSD code so the behaviour is already as > in Linux, as I mentioned in my previous mail. > > > A further linux extension: In addition to all the above, Linux goes > > even further and still allows you to attach the segment even after > > marking it for deletion. > > [...] > > Freebsd (since version 5.2) has a sysctl kern.ipc.shm_allow_removed > > which seems to allow you to force the linux behaviour on this issue. > > Openbsd automatically does it (only) when running linux binaries via > > compat_linux(8). > > Since we're using FreeBSD code, there's a variable shm_allow_removed in > the code already which allows this behaviour. There's just no way right > now to set it. It's always zero. It would be quite easy to add a > cygserver.conf setting for this, though.
I've applied two patches which change shmctl(IPC_RMID) to the BSD/Linux behaviour as well as adding a kern.ipc.shm_allow_removed option to the /etc/cygserver.conf file. Please give it a try. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
