Re: [BUG] sysrq-m oops

[Chuck Ebbert]

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) {
                        page = pfn_to_page(pgdat->node_start_pfn + i);
                        total++;
 ======>                if (PageReserved(page))
                                reserved++;
                        else if (PageSwapCache(page))
                                cached++;
                        else if (page_count(page))
                                shared += page_count(page) - 1;
               }
        }

page is completely bogus (it's 0x0000000003480000)
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