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re: bin/53651: sockstat(1) no longer list information when invoked as user

AFAICT, the only reason the unpriv'd tools fail now is that they
can't compare values from different sysctl's to ensure they have
the right thing.  christos' expose_addr hack is a good workaround
for when this problem occurs, but it would be much nicer if we
were able to give these sysctls some cookie pointer value that
is comparable with others, but doesn't reveal any kva.

it's not that the kernel is re-using addresses from the userland,
but only that two addresses are identical.


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