ARM disables interrupts in do_signal, which triggers a warning in try_to_freeze, see details at https://lkml.org/lkml/2011/8/23/221. To prevent the warnings, add try_to_freeze_nowarn and call it from do_signal. Change-Id: If7482de21c386adc705fa1ac4ecb8c7ece5bb356 Signed-off-by: Colin Cross <ccross@android.com>