Messages in this thread |  | | Date | Tue, 05 Feb 2013 14:20:11 -0800 | From | Cody P Schafer <> | Subject | Re: [PATCH 6/9] mm/page_alloc: add informative debugging message in page_outside_zone_boundaries() |
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On 02/01/2013 04:29 PM, Andrew Morton wrote: > On Fri, 1 Feb 2013 16:28:48 -0800 > Andrew Morton <akpm@linux-foundation.org> wrote: > >>> + if (ret) >>> + pr_debug("page %lu outside zone [ %lu - %lu ]\n", >>> + pfn, start_pfn, start_pfn + sp); >>> + >>> return ret; >>> } >> >> As this condition leads to a VM_BUG_ON(), "pr_debug" seems rather wimpy >> and I doubt if we need to be concerned about flooding the console. >> >> I'll switch it to pr_err. > > otoh, as nobody has ever hit that VM_BUG_ON() (yes?), do we really need > the patch?
I've hit this bug while developing some code that moves pages between zones.
As it helped me debug that issue with my own code, I could see how another developer might be helped by it.
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