Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: 3.16-rcX crashes on resume from Suspend-To-RAM | Date | Wed, 06 Aug 2014 20:56:21 +0200 |
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On Wednesday, August 06, 2014 11:31:07 AM Markus Gutschke wrote: > I tried removing snd_hda_intel, but it didn't make any difference. > > I then followed your instructions to turn on tracing, but I am more > puzzled than I was before. The crash reliably happens, every time I > suspend/resume without first having tracing turned on. But as soon as > I enter "echo devices >/sys/power/pm_test" to enable tracing things > change. Upon suspending, the machine now happily resumes itself again > a few seconds later. No crash whatsoever. > > Is this the expected behavior? Anything else you want me to do?
Yes, it is. This means that suspending/resuming devices works correctly.
Please try
# echo platform > /sys/power/pm_test
and see if that triggers the crash.
If it doesn't, please try
# echo processors > /sys/power/pm_test
and if that doesn't trigger the crash,
# echo core > /sys/power/pm_test
(this is described in Documentation/power/basic-pm-debugging.txt in the kernel source tree, BTW).
Rafael
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