#7292 BLOC Never A: Suspend failing with testing/master branch kernels.

[Zarro Boogs per Child]

#7292: Suspend failing with testing/master branch kernels.
----------------------+-----------------------------------------------------
  Reporter:  cjb      |       Owner:  dilinger      
      Type:  defect   |      Status:  new           
  Priority:  blocker  |   Milestone:  Never Assigned
 Component:  kernel   |     Version:  olpc-3        
Resolution:           |    Keywords:                
  Verified:  0        |    Blocking:                
 Blockedby:           |  
----------------------+-----------------------------------------------------

Comment(by cjb):

 The same happens when booted "nousb", so the libertas errors are a
 correlation rather than causation.

 {{{
 -bash-3.2# echo mem > /sys/power/state
 [   69.978302] PM: Syncing filesystems ... done.
 [   69.985035] PM: Preparing system for mem sleep
 [   69.988179] Freezing user space processes ... (elapsed 0.00 seconds)
 done.
 [   70.023375] Freezing remaining freezable tasks ... (elapsed 0.02
 seconds) done.
 [   70.067881] PM: Entering mem sleep
 [   70.077812] Suspending console(s)
 [   70.130059] olpc-dcon: The DCON has control
 [   70.144151] olpc-ec:  running cmd 0x1c
 [   70.145729] olpc-ec:  received 0xbb
 [   70.145729] olpc-ec:  running cmd 0x1b
 [   70.145729] olpc-ec:  sending cmd arg 0xbb
 [   70.145729] olpc-ec:  running cmd 0x32
 [   70.202704] PM: Writing back config space on device 0000:00:0c.1 at
 offset 1 (was 2
 b00002, writing 2b00006)
 [   70.202832] PM: Writing back config space on device 0000:00:0c.2 at
 offset 1 (was 2
 b00002, writing 2b00006)
 [   70.216380] PCI: Setting latency timer of device 0000:00:0f.3 to 64
 [   70.375822] olpc-dcon: The CPU has control
 [   70.384068] PM: Finishing wakeup.
 [   70.393911] Restarting tasks ... done.
 }}}

 I wonder if olpc-pm isn't being registered.  Next step is probably to
 instrument olpc_pm_enter() to find out whether we're getting there, and if
 it's returning early.

-- 
Ticket URL: <http://dev.laptop.org/ticket/7292#comment:3>
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