On Thu, 2007-06-07 at 14:21 -0400, Bob Picco wrote:
> Chuck Ebbert wrote: [Thu Jun 07 2007, 11:42:38AM EDT]
> > On 06/06/2007 08:27 PM, john stultz wrote:
> > > Hey All,
> > > With 2.6.21 and the current -git, we're seeing the following oops when
> > > we try sysrq-m:
> > >
> >
> > It's here in arch/x86_64/mm/init.c::show_mem():
> >
> > for_each_online_pgdat(pgdat) {
> > for (i = 0; i < pgdat->node_spanned_pages; ++i) {
> This is probably with sparsemem? I'm working with [email protected] to
> test a patch. Basically you need to validate the pfn because it
> could be in a hole. Most arches which support sparsemem perform this
> check.
>
> if (!pfn_valid(pgdat->node_start_pfn + i))
> continue;
Yep. That catch avoids the issue! Sounds like a 2.6.21.x candidate.
thanks so much!
-john
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