#11526 HIGH 1.75-so: Resume of XO-1.75 from suspend tried to kill init

[Zarro Boogs per Child]

#11526: Resume of XO-1.75 from suspend tried to kill init
-----------------------+----------------------------------------------------
 Reporter:  greenfeld  |                 Owner:                                   
     Type:  defect     |                Status:  new                              
 Priority:  high       |             Milestone:  1.75-software                    
Component:  kernel     |               Version:  Development build as of this date
 Keywords:             |           Next_action:  diagnose                         
 Verified:  0          |   Deployment_affected:                                   
Blockedby:             |              Blocking:                                   
-----------------------+----------------------------------------------------
 A SKU 201 XO-1.75 in Miami tried to kill the init process, and then went
 into a DCON interrupt loop while running runin with just the camera and
 suspend modules active (along with gtk/X Windows).

 Seen with 11.3.0 os18.

 {{{
 [  260.717738] PM: suspend of devices complete after 140.902 msecs
 [  260.718056] PM: late suspend of devices complete after 0.276 msecs
 [  260.719566] PM: early resume of devices complete after 0.543 msecs
 [  260.719573] mmp2_pm_finish
 [  260.978462] [galcore]: gpu_resume, 1369
 [  260.978907] >>>>>>[_gpu_on]@1153
 [  260.988461] <<<<<<[_gpu_on]@1173
 [  261.028466] usb 1-1: reset high speed USB device number 2 using pxau2o-
 ehci
 [  261.309232] PM: resume of devices complete after 589.517 msecs
 [  261.394301] dcon_source_switch to CPU
 [  261.398535] Restarting tasks ...
 [  261.414079] Kernel panic - not syncing: Attempted to kill init!
 [  261.420072] [<c00359ac>] (unwind_backtrace+0x0/0x120) from [<c0381c2c>]
 (panic+0x68/0x180)
 [  261.428286] [<c0381c2c>] (panic+0x68/0x180) from [<c0049648>]
 (do_exit+0xb0/0x6cc)
 [  261.435844] [<c0049648>] (do_exit+0xb0/0x6cc) from [<c0049f90>]
 (do_group_exit+0xb0/0xe0)
 [  261.443982] [<c0049f90>] (do_group_exit+0xb0/0xe0) from [<c0054ffc>]
 (get_signal_to_deliver+0x404/0x464)
 [  261.453437] [<c0054ffc>] (get_signal_to_deliver+0x404/0x464) from
 [<c003273c>] (do_signal+0xb0/0x5e0)
 [  261.462634] [<c003273c>] (do_signal+0xb0/0x5e0) from [<c0033284>]
 (do_notify_resume+0x18/0x5c)
 [  261.471201] [<c0033284>] (do_notify_resume+0x18/0x5c) from [<c00300d8>]
 (work
 _pending+0x24/0x28)
 [  261.518455] olpc-dcon: scanline interrupt w/CPU
 [  261.538455] olpc-dcon: scanline interrupt w/CPU
 [  261.558459] olpc-dcon: scanline interrupt w/CPU
 [  261.583332] olpc-dcon: scanline interrupt w/CPU
 [  261.603445] olpc-dcon: scanline interrupt w/CPU
 [  261.623558] olpc-dcon: scanline interrupt w/CPU
 [  261.638459] olpc-dcon: scanline interrupt w/CPU
 [  261.658456] olpc-dcon: scanline interrupt w/CPU
 [  261.683896] olpc-dcon: scanline interrupt w/CPU
 }}}

-- 
Ticket URL: <http://dev.laptop.org/ticket/11526>
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