Re: OpenBSD SMP - BGPd - send_rtmsg: action 1, prefix A.B.C.D/24: No buffer space available - panic: malloc: out of space in kmem_map

On Tue, Nov 28, 2023 at 05:55:03PM +0100, Laurent CARON wrote:
>
> Le 28/11/2023 à 17:46, Claudio Jeker a écrit :
> > The problem is that the symbol nkmempages moved into .bss and is therefor
> > no longer modifiable by config(8). I think you can still use ukc via
> > boot -c to alter it (but that is not sticky).
> >
> > The alternative is to set "option NKMEMPAGES=131072" in your GENERIC
> > config file (or option NKMEMPAGES_MAX=131072). See also options(4).
> >
> > Long term is the fix this proper. All of this was built when computers had
> > 100MB of memory not 100GB.
> >
>
> Got it. Thanks.
>
> It means I'll stick with this kernel for now and see if it helps (it seems
> promising for now).
>
> Is there a way you can submit this patch (option NKMEMPAGES=131072) to the
> current branch ?

A better calculation logic for nkmempages was added to -current.
On most 64bit archs nkmempages now scales to much larger values.

See https://marc.info/?l=openbsd-cvs&m=170255507530513&w=2 for more
details.

--
:wq Claudio