Andi Kleen wrote:
Yes, after discussion with Rusty, it appears that beefing up
stop_machine_run is the right way to go. And it has benefits for
non-paravirt code as well, such as allowing plug-in kprobes or oprofile
extension modules to be loaded without having to deal with a debug
exception or NMI during module load/unload.
I'm still unclear where you think those debug exceptions will come from
kprobes set in the stop_machine code - which is probably a really bad
idea, but nothing today actively stops kprobes from doing that.
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