Double Hibernate

[tomrittervg]

Sometimes when resuming from hibernation, the machine will re-hibernate. When I resume again, it will stay booted.

This has happened to me 2 out of 2 times after I had traveled home/to work. I've tried reproducing it consciously, suspecting it to happen if I boot with the power plugged in, or with the power not plugged in but then connected as it was booting - but I've failed to find consistent repo steps. I can say that I consistently hibernate the machine by locking it and then pulling the power.

[andreasjunestam]

Tom, please let us know if you find a way to repro it. It might also help to run the debug build, which produces a debug log. That way we can see why it hibernates.

[tomrittervg]

So, I've got a debug log, but there's no timestamps (see #24) so it doesn't help all that much. It happens somewhere towards the end of this log, and here's me walking backwards from this point in time:

This is my recollection, walking backwards:

I turned on my machine to make this note, about 11PM. It was plugged in when I turned it on. I shut down the machine to go home. It was plugged in when I shut it down @ 4:30ish I plugged in the machine while the screen was not locked when I got back to my desk I found that my laptop had hibernated. When I turned it on, it immediately rehibernated (the double hibernate). It took maybe 10-15 min to find the conference room I thought I left the screen unlocked, then unplugged the power, to walk to a conference room @ 3PM

Here is the entire contents of the log in normal order:

In ServiceMain bNeverLoggedIn = FALSE ServiceMain: Going into main loop In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started PowerMonitorThread: Machine was not connected to AC power at lock time. PowerMonitorThread: Exiting WiredEtherMonitorThread: Firing monitor event WiredEtherMonitorThread: Exiting ServiceMain: Wired ether disconnected -> suspend In ServiceHandlerEx ServiceHandlerEx: Going into suspended state In ServiceHandlerEx In ServiceHandlerEx ServiceHandlerEx: Resuming from suspended state In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started PowerMonitorThread: Machine was not connected to AC power at lock time. PowerMonitorThread: Exiting WiredEtherMonitorThread: Firing monitor event WiredEtherMonitorThread: Exiting ServiceMain: Wired ether disconnected -> suspend In ServiceHandlerEx ServiceHandlerEx: Going into suspended state In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx ServiceHandlerEx: Resuming from suspended state In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx WiredEtherMonitorThread: Exiting PowerMonitorThread: Exiting In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx WiredEtherMonitorThread: Exiting PowerMonitorThread: Exiting In ServiceHandlerEx In ServiceHandlerEx PowerMonitorThread: Started PowerMonitorThread: Machine was not connected to AC power at lock time. PowerMonitorThread: Exiting WiredEtherMonitorThread: Started In ServiceHandlerEx In ServiceHandlerEx WiredEtherMonitorThread: Exiting In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx WiredEtherMonitorThread: Exiting PowerMonitorThread: Exiting In ServiceHandlerEx In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx ServiceHandlerEx: Firing service end event WiredEtherMonitorThread: Exiting PowerMonitorThread: Exiting ServiceMain: Service stopped ServiceMain: Exiting In ServiceMain bNeverLoggedIn = TRUE ServiceMain: Going into main loop In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx ServiceHandlerEx: Firing service end event WiredEtherMonitorThread: Exiting PowerMonitorThread: Exiting ServiceMain: Service stopped ServiceMain: Exiting In ServiceMain bNeverLoggedIn = TRUE ServiceMain: Going into main loop In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx In ServiceHandlerEx PowerMonitorThread: Exiting WiredEtherMonitorThread: Exiting In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Exiting WiredEtherMonitorThread: Exiting In ServiceHandlerEx WiredEtherMonitorThread: Started PowerMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Exiting WiredEtherMonitorThread: Exiting In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Exiting WiredEtherMonitorThread: Exiting In ServiceHandlerEx WiredEtherMonitorThread: Started PowerMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Exiting WiredEtherMonitorThread: Exiting In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx WiredEtherMonitorThread: Exiting PowerMonitorThread: Exiting In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx WiredEtherMonitorThread: Exiting PowerMonitorThread: Exiting In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Exiting WiredEtherMonitorThread: Exiting In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx WiredEtherMonitorThread: Exiting PowerMonitorThread: Exiting In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx WiredEtherMonitorThread: Started PowerMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Exiting WiredEtherMonitorThread: Exiting In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Firing monitor event PowerMonitorThread: Exiting ServiceMain: AC disconnected -> suspend In ServiceHandlerEx ServiceHandlerEx: Going into suspended state In ServiceHandlerEx In ServiceHandlerEx ServiceHandlerEx: Resuming from suspended state In ServiceHandlerEx In ServiceHandlerEx WiredEtherMonitorThread: Exiting In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started PowerMonitorThread: Machine was not connected to AC power at lock time. PowerMonitorThread: Exiting In ServiceHandlerEx ServiceHandlerEx: Firing service end event WiredEtherMonitorThread: Exiting ServiceMain: Service stopped ServiceMain: Exiting In ServiceMain bNeverLoggedIn = TRUE ServiceMain: Going into main loop In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx WiredEtherMonitorThread: Exiting PowerMonitorThread: Exiting In ServiceHandlerEx WiredEtherMonitorThread: Started PowerMonitorThread: Started In ServiceHandlerEx In ServiceHandlerEx PowerMonitorThread: Exiting WiredEtherMonitorThread: Exiting In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx WiredEtherMonitorThread: Started PowerMonitorThread: Started In ServiceHandlerEx WiredEtherMonitorThread: Exiting PowerMonitorThread: Exiting In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Exiting WiredEtherMonitorThread: Exiting In ServiceHandlerEx In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Exiting WiredEtherMonitorThread: Exiting In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Firing monitor event PowerMonitorThread: Exiting ServiceMain: AC disconnected -> suspend WiredEtherMonitorThread: Firing monitor event WiredEtherMonitorThread: Exiting In ServiceHandlerEx ServiceHandlerEx: Going into suspended state ServiceMain: Wired ether disconnected -> suspend In ServiceHandlerEx In ServiceHandlerEx ServiceHandlerEx: Resuming from suspended state In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx ServiceHandlerEx: Going into suspended state In ServiceHandlerEx In ServiceHandlerEx ServiceHandlerEx: Resuming from suspended state In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx ServiceHandlerEx: Firing service end event WiredEtherMonitorThread: Exiting PowerMonitorThread: Exiting ServiceMain: Service stopped ServiceMain: Exiting In ServiceMain bNeverLoggedIn = TRUE ServiceMain: Going into main loop In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Exiting WiredEtherMonitorThread: Exiting

[mlynch-isec]

It looks like this is the problem:

In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Firing monitor event PowerMonitorThread: Exiting ServiceMain: AC disconnected -> suspend WiredEtherMonitorThread: Firing monitor event WiredEtherMonitorThread: Exiting In ServiceHandlerEx ServiceHandlerEx: Going into suspended state ServiceMain: Wired ether disconnected -> suspend In ServiceHandlerEx In ServiceHandlerEx ServiceHandlerEx: Resuming from suspended state In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx ServiceHandlerEx: Going into suspended state

If both wired Ethernet and AC power are removed at the same time, we don't coalesce them into a single hibernate.

We need to change the YontaService.cpp code so that when one monitoring event fires, we 1) shut down all monitoring threads and 2) reset all monitoring events

[andreasjunestam]

We could replace the two events with a single hibernation event. Still think the sleep and recheck is a good idea to avoid hibernating on glitches.

----- Reply message ----- From: "mlynch-isec" notifications@github.com To: "iSECPartners/yontma" yontma@noreply.github.com Cc: "Andreas Junestam" andreas@isecpartners.com Subject: [yontma] Double Hibernate (#23) Date: Mon, Mar 25, 2013 8:10 am

It looks like this is the problem:

In ServiceHandlerEx PowerMonitorThread: Started WiredEtherMonitorThread: Started In ServiceHandlerEx PowerMonitorThread: Firing monitor event PowerMonitorThread: Exiting ServiceMain: AC disconnected -> suspend WiredEtherMonitorThread: Firing monitor event WiredEtherMonitorThread: Exiting In ServiceHandlerEx ServiceHandlerEx: Going into suspended state ServiceMain: Wired ether disconnected -> suspend In ServiceHandlerEx In ServiceHandlerEx ServiceHandlerEx: Resuming from suspended state In ServiceHandlerEx In ServiceHandlerEx In ServiceHandlerEx ServiceHandlerEx: Going into suspended state

If both wired Ethernet and AC power are removed at the same time, we don't coalesce them into a single hibernate.

We need to change the YontaService.cpp code so that when one monitoring event fires, we 1) shut down all monitoring threads and 2) reset all monitoring events

— Reply to this email directly or view it on GitHubhttps://github.com/iSECPartners/yontma/issues/23#issuecomment-15398764.

[mlynch-isec]

We're working on a fix but in the meantime:

Workaround: Do not use YoNTMA as a replacement for manual hibernation if the laptop has both Ethernet and AC plugged in. Manually hibernate the machine before locking + unplugging the laptop.