how many memory is needed for FreeBSD 9 ?

Patrick Lamaiziere patfbsd at
Tue Oct 23 16:57:38 UTC 2012

Le Mon, 22 Oct 2012 03:49:50 +1100,
andrew clarke <mail at> a écrit :


> > I'm updating an old laptop running FreeBSD 8.1 with 64 MB ram (44MB
> > available) but now FreeBSD 9.1 panics at boot time:
> > 
> > panic: kmem_malloc(4194304): kmem_map too small: 24584192 allocated?
> That's one very old laptop. I think you'll need to install more memory
> or downgrade FreeBSD to an earlier version.

1998, I think (HP Omnibook 900). I use it for small network testing and
serial console access. It works well for this.

Well I've put 8-STABLE on it (two days to make buildworld/buildkernel).
Looks good.

> From my limited testing under VirtualBox, 96 MB RAM is about the lower
> limit that will allow FreeBSD 9.1-RC2 to boot before the swap
> partition is enabled. Any less and the kernel will freeze or panic at
> boot. This was with the amd64 version though, not i386.

Thanks for this, regards.

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