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SubjectRe: [patch 2/2] x86 NMI-safe INT3 and Page Fault
On 07/16/2010 11:15 AM, Avi Kivity wrote:
> There aren't that many processes at this time (or there shouldn't be,
> don't know how fork-happy udev is at this stage), so the sync should be
> pretty fast. In any case, we can sync only modules that contain NMI
> handlers.
>> I really hope noone ever gets the idea of touching user space from an
>> NMI handler, though, and expecting it to work...
> I think the concern here is about an NMI handler's code running in
> vmalloc space, or is it something else?

Code or data, yes; including percpu data.


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