On Wed, 16 Oct 2013 14:51:11 +0200
Ingo Molnar <mi...@kernel.org> wrote:


> So kallsyms_lookup() faulted, while the NMI watchdog triggered a 
> show_regs()? How is that possible?

It was a vmalloc fault. Do modules keep their symbol tables in a
vmalloced area? If so, I think the get_ksymbol() can fault when
searching for a module address.

-- Steve
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