A package wide event can return a valid read even if it has not run in a
specific cpu, this does not fit well with the assumption that run == 0
is equivalent to a .
To fix the problem, this patch defines special error values for val,
run and ena (~0ULL), and use them to signal read errors,
A package wide event can return a valid read even if it has not run in a
specific cpu, this does not fit well with the assumption that run == 0
is equivalent to a .
To fix the problem, this patch defines special error values for val,
run and ena (~0ULL), and use them to signal read errors,
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