Re: ipcs regression 13 -> 14 (sysv shared memory)

On Tue, 19 Dec 2023 10:22:54 +0100
Kurt Jaeger <pi@freebsd.org> wrote:

> Hi!
> 
> > On 14-STABLE:
> > 
> > % ipcs
> > ipcs: sysctlbyname: kern.ipc.msgmax: No such file or directory  
> 
> 14.0-REL:
> $ ipcs
> Message Queues:
> T           ID          KEY MODE        OWNER    GROUP   
> 
> Shared Memory:
> T           ID          KEY MODE        OWNER    GROUP   
> m       917504            0 --rw------- 770      770     
> 
> Semaphores:
> T           ID          KEY MODE        OWNER    GROUP   
> 

Do you have SysV in kernel or in kld? Maybe this is the difference... I
can check with install memstick if that's possible, a bit later.

> on 15 (compiled around 7th of September):
> 
> $ ipcs
> Message Queues:
> T           ID          KEY MODE        OWNER    GROUP   
> 
> Shared Memory:
> T           ID          KEY MODE        OWNER    GROUP   
> 
> Semaphores:
> T           ID          KEY MODE        OWNER    GROUP   
> 
> 
> > Is this known bug? Intentional? Known fix?
> > 
> > Additional info:
> > 
> > sysctl oid mentioned indeed does not exist on 14-STABLE, more oids
> > missing, compare on 13-STABLE
> > 
> > % sysctl kern.ipc | wc -l
> >       54  
> 
> 85 on my 13.2 box.
> 
> > with that on 14-STABLE
> > % sysctl kern.ipc | wc -l
> >       40  
> 
> 107 on my 14.0 box.
> same on the 15 box.
> 

Maybe kernel config differences matter, no idea.

Anyway, any idea how to proceed? How to get more relevant info?

Regards,
Milan