RE: crash on SysRq : Show Memory

Kenneth Chen
2004-03-09T20:10:50Z

Jesse Barnes wrote on Tue, March 09, 2004 11:26 AM
> On Tue, Mar 09, 2004 at 10:57:48AM -0800, Grant Grundler wrote:
> > On Tue, Mar 09, 2004 at 01:47:15PM -0500, Aron Griffis wrote:
> > > Jesse Barnes wrote: [Tue Mar 09 2004, 12:54:25PM EST]
> > > > What kind of machine are you running on?
> > >
> > > Long's Peak.
> >
> > That's an RX2600 for anyone wanting to find the product on www.hp.com
>
> Ah, zx1 then. I accidentally deleted the original backtrace and it
> doesn't appear to be in the list archives yet, but I'm guessing that
> since the panic occured at arch/ia64/mm/contig.c:show_mem+0x100, I'm
> guessing the problem is somewhere after the call to show_free_areas().
> I don't have a zx1 box that's easy to test with, so I probably won't be
> much help.

Looks like it passed beyond show_free_areas(), faulting IP was in the
while loop accessing mem_map variable.

By the way, the local variable total is redundant in that function.
Same data already exists with max_mapnr.

- Ken