repeatable crash on RELENG7

[Kostik Belousov]

On Tue, Dec 02, 2008 at 09:12:54AM -0500, Mike Tancsa wrote:
> At 08:38 AM 12/2/2008, Kostik Belousov wrote:
> >>
> >> mdconfig -a -t malloc -s 1800M
> >You cannot have ~ 2Gb of kernel memory allocated for md, at least not on
> >i386.
> 
> Thanks,  how do I find out what the limit is on a machine ? Is it 
> vm.kvm_size ?

It is much less, and highly depends on your load, since KVA is used for all
kind of allocations made by kernel. I think either md(4) or mdconfig(8) have
a warning about malloc backing for md.
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