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Commit a03ff6f2 authored by Pavel Machek's avatar Pavel Machek Committed by Rafael J. Wysocki
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PM / sleep: Mention async suspend in PM_TRACE documentation 



Document pm_tracing actually affecting suspend in non-trivial way.

Signed-off-by: default avatarPavel Machek <pavel@ucw.cz>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent d78cb368

Documentation/power/s2ram.txt

+4 −0
Original line number Diff line number Diff line
@@ -69,6 +69,10 @@ Reason for this is that the RTC is the only reliably available piece of 
hardware during resume operations where a value can be set that will

survive a reboot.



pm_trace is not compatible with asynchronous suspend, so it turns

asynchronous suspend off (which may work around timing or

ordering-sensitive bugs).



Consequence is that after a resume (even if it is successful) your system

clock will have a value corresponding to the magic number instead of the

correct date/time! It is therefore advisable to use a program like ntp-date