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Re: double fault -> PAGE_KERNEL flagged memory


* Roland McGrath (roland@redhat.com) wrote:
> In the current Linus kernel, the i386 do_page_fault routine is marked with
> __kprobes.  As I understand it, this puts it in a special section and no
> kprobe can be inserted inside the function.  If that's the case, I'm a bit
> confused as to how this is coming up.
> 

Well, it's getting clear now that only the vmalloc_fault path of this function
is problematic. It's ok as long as this path does not call any external
function.

Mathieu

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