Re: Deadlock on fragmented memory?

[Taylor R Campbell <campbell+netbsd-tech-kern%mumble.net@localhost>]

> Date: Fri, 20 Oct 2017 15:09:06 +0200
> From: Manuel Bouyer <bouyer%antioche.eu.org@localhost>
> 
> On Thu, Oct 19, 2017 at 03:18:44PM +0000, Taylor R Campbell wrote:
> > On reflection, this patch has the downside of always reserving 4 MB of
> > RAM up front, which the original exec_map approach did not.  Attached
> > is another patch that reintroduces exec_map (but in MI code, not a
> > copy of it in all MD code) and pool-allocates from that, without a
> > low-water mark.  Compile-tested only so far.
> 
> I ran an anita test for Xen/amd64 and Xen/i386 with your patch and didn't
> notice any bad effect. please commit !

Thanks!  Now let's hope it withstands the long uptimes under load that
my 32-bit NetBSD >=5 systems never did.