Messages in this thread | | | From | Andi Kleen <> | Subject | Re: [discuss] mmap, mbind and write to mmap'ed memory crashes 2.6.16-rc1[2] on 2 node X86_64 | Date | Wed, 8 Feb 2006 17:27:31 +0100 |
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On Wednesday 08 February 2006 17:20, Christoph Lameter wrote: > On Wed, 8 Feb 2006, Andi Kleen wrote: > > > > So a provisional solution would be to simply ignore empty zones in > > > bind_zonelist? > > > > That would likely prevent the crash yes (Bharata can you test?) > > > > But of course it still has the problem of a lot of memory being unpolicied > > on machines with >4GB if there's both DMA32 and NORMAL. > > The fix could result in a zonelist with no zones. So we can answer one > question in __alloc_pages().
I don't think it can happen - at least one zone <= policy-zone has to have memory otherwise the machine wouldn't work at all.
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