#11497 BLOC 1.75-so: System do not suspend first when press power button, but second time it test okay

[Zarro Boogs per Child]

#11497: System do not suspend first when press power button, but second time it
test okay
--------------------------------+-------------------------------------------
           Reporter:  Andy Pei  |       Owner:                                   
               Type:  defect    |      Status:  new                              
           Priority:  blocker   |   Milestone:  1.75-software                    
          Component:  kernel    |     Version:  Development build as of this date
         Resolution:            |    Keywords:                                   
        Next_action:  diagnose  |    Verified:  0                                
Deployment_affected:            |   Blockedby:                                   
           Blocking:            |  
--------------------------------+-------------------------------------------

Comment(by pgf):

 looking at the output of /sys/kernel/debug/wakeup_sources across this
 event:

 {{{
 bash-4.1# cat /sys/kernel/debug/wakeup_sources
 name            active_count    event_count     hit_count
 active_since    total_time      max_time        last_change
 mmp-rtc         1               2               0               0
 999             999             7559
 olpc-kbd.0      2               104             0               0
 2988            1889            8410
 usb1            0               0               0               0
 0               0               0
 olpc-switch.0   0               0               0               0
 0               0               0
 olpc-ec-1.75.0  0               0               0               0
 0               0               0
 bash-4.1# [   41.845593] dcon_freeze_store: 1
 [   41.857176] dcon_source_switch to DCON
 [   41.896571] olpc-dcon: The DCON has control
 [   42.056141] dcon_freeze_store: 1
 [   42.145545] dcon_freeze_store: 0
 [   42.149130] dcon_source_switch to CPU
 [   42.177018] olpc-dcon: The CPU has control
 bash-4.1# cat /sys/kernel/debug/wakeup_sources
 name            active_count    event_count     hit_count
 active_since    total_time      max_time        last_change
 mmp-rtc         1               2               0               0
 999             999             7559
 olpc-kbd.0      2               104             0               0
 2988            1889            8410
 usb1            0               0               0               0
 0               0               0
 olpc-switch.0   0               0               0               0
 0               0               0
 olpc-ec-1.75.0  1               1               0               0
 982             982             41677
 bash-4.1# [   50.104618] PM: Syncing filesystems ... done.
 [   50.111544] Freezing user space processes ...
 [   50.118409] Freezing of tasks aborted after 0.00 seconds (120 tasks
 refusing to freeze, wq_busy=0):
 [   50.127415]
 [   50.127486] Restarting tasks ... done.
 [   50.320680] dcon_freeze_store: 0
 [   50.370783] dcon_freeze_store: 0
 bash-4.1# cat /sys/kernel/debug/wakeup_sources
 name            active_count    event_count     hit_count
 active_since    total_time      max_time        last_change
 mmp-rtc         2               3               1               0
 1995            999             50084
 usb1            0               0               0               0
 0               0               0
 olpc-ec-1.75.0  1               1               0               0
 982             982             41677
 bash-4.1# cat /sys/kernel/debug/wakeup_sources
 name            active_count    event_count     hit_count
 active_since    total_time      max_time        last_change
 mmp-rtc         2               3               1               0
 1995            999             50084
 usb1            0               0               0               0
 0               0               0
 olpc-ec-1.75.0  1               1               0               0
 982             982             41677

 }}}

 the bump in "hit_count" is what's preventing the suspend.  need to
 investigate.

-- 
Ticket URL: <http://dev.laptop.org/ticket/11497#comment:3>
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