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authorRafael J. Wysocki <rjw@sisk.pl>2007-11-19 23:42:31 +0100
committerLen Brown <len.brown@intel.com>2008-02-01 18:30:54 -0500
commit4cc79776c9ea431790e04fcacbebb30d28eb1570 (patch)
tree42eb5b8c5f2a2d1fcfb1dae8fa77ad70be209cbb /Documentation/power
parent039a75c6e17ba4ff76998d6ac6ee3d508fff1930 (diff)
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Hibernation: New testing facility (rev. 2)
Make it possible to test the hibernation core code with the help of the /sys/power/pm_test attribute introduced for suspend testing in the previous patch. Writing an appropriate string to this file causes the hibernation code to work in one of the test modes defined as follows: freezer - test the freezing of processes devices - test the freezing of processes and suspending of devices platform - test the freezing of processes, suspending of devices and platform global   control methods(*) processors - test the freezing of processes, suspending of devices, platform global   control methods(*) and the disabling of nonboot CPUs core - test the freezing of processes, suspending of devices, platform global   control methods(*), the disabling of nonboot CPUs and suspending of   platform/system devices (*) - the platform global control methods are only available on ACPI systems       and are only tested if the hibernation mode is set to "platform" Then, if a hibernation is started by normal means, the hibernation core will perform its normal operations up to the point indicated by given test level. Next, it will wait for 5 seconds and carry out the resume operations needed to transition the system back to the fully functional state. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Len Brown <len.brown@intel.com>
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