https://bugzilla.kernel.org/show_bug.cgi?id=5471





--- Comment #13 from H. Peter Anvin <h...@zytor.com>  2010-12-09 23:16:47 ---
"Play dead" and "go to sleep" are not necessarily the same things -- in
particular, there may be operations that are appropriate when going to sleep
but not when offlining -- e.g. invoking ACPI routines -- and there may be
operations which we can do when we're going to lose state anyway, i.e. entered
an otherwise-disabled MWAIT state.

That doesn't mean this couldn't be added to the cpuidle framework, but using
the cpuidle framework as it currently sits would be unacceptably dangerous.

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