Re: "bad pmd" errors + oops with KPTI on 4.14.11 after loading X.509 certs

Benjamin Gilbert
2018-01-04T04:35:09Z

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On Wed, Jan 03, 2018 at 04:37:53PM -0800, Andy Lutomirski wrote:
> Maybe try rebuilding a bad kernel with free_ldt_pgtables() modified
> to do nothing, and the read /sys/kernel/debug/page_tables/current (or
> current_kernel, or whatever it's called). The problem may be obvious.

current_kernel attached. I have not seen any crashes with
free_ldt_pgtables() stubbed out.

--Benjamin Gilbert

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