On Fri, Jun 18, 2004 at 04:51:15PM -0400, Brian Fundakowski Feldman wrote:
> On Tue, Jun 15, 2004 at 03:57:09PM -0400, Brian Fundakowski Feldman wrote:
> > The patch, which applies to 5-CURRENT, can be found here:
> >     <http://green.homeunix.org/~green/contigmalloc2.patch>
> > The default is to use the old contigmalloc().  You can set the
> > sysctl or loader tunable "vm.old_contigmalloc" to 0 to enable it.
> > 
> > For anyone that normally runs into failed allocations hot-plugging
> > hardware, please try this and see if it helps out.
> 
> By the way, I have updated it further to split apart contigmalloc()
> into a separate vm_page_alloc_contig() and mapping function as per
> feedback from Alan Cox and Hiten Pandya.  The operation is still the
> same except for now being able to see memory allocated with it
> in your vmstat(8) -m output. The patch is still at the same location,
> and requires sysctl vm.old_contigmalloc=0 to enable.
> 

Why don't you commit the part that makes allocation of physical memory
start from high addresses?

Alan
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