Subject: Re: pmap panics on 1.4.3
To: Stephen Borrill <netbsd@precedence.co.uk>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: port-i386
Date: 03/20/2002 20:37:42
On Wed, Mar 20, 2002 at 01:37:21PM +0000, Stephen Borrill wrote:
> There isn't much information. :-(
> 
> panic: pmap_alloc_pvpage
> stopped in httpd at _debugger +0x4: leave

OK, so there is a limit which is too low somewhere.
Now to find which one.

I suspect it's the kmem_map which is too small pmap_alloc_pvpage() does
a call to uvm_km_kmemalloc() from kmem_map. Maybe try to increase
NKMEMCLUSTERS, but it's just a guess. By default it's 6 * 1024 * 1024 / CLBYTES

A vm guru can probably say more about this.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
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