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;
bob
> 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)
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
