#11785 LOW 12.1.0: kernel panic on power down

[Zarro Boogs per Child]

#11785: kernel panic on power down
--------------------+-------------------------------------------------------
 Reporter:  Quozl   |                 Owner:                                   
     Type:  defect  |                Status:  new                              
 Priority:  low     |             Milestone:  12.1.0                           
Component:  kernel  |               Version:  Development build as of this date
 Keywords:          |           Next_action:  diagnose                         
 Verified:  0       |   Deployment_affected:                                   
Blockedby:          |              Blocking:                                   
--------------------+-------------------------------------------------------
 seen on os7, XO-1.75, on the serial shell, is reproducible:
 {{{
 bash-4.2# exec poweroff
 [ 1285.538066] dcon_freeze_store: 0
 [ 1285.542776] PID=375 , name=X exits
 [ 1285.546180] GC memory usage profile:
 [ 1285.549726] Total reserved video memory: 65535 KB
 [ 1285.562386] Used video mem: 0 KB     contiguous: 0 KB        virtual: 0
 KB
 [ 1286.729957] Power down.
 [ 1286.754483] Kernel panic - not syncing: Attempted to kill init!
 [ 1286.760395] [<c00353e0>] (unwind_backtrace+0x0/0x11c) from [<c037ea34>]
 (panic+0x68/0x184)
 [ 1286.768647] [<c037ea34>] (panic+0x68/0x184) from [<c0048ad0>]
 (do_exit+0xb0/0x6bc)
 [ 1286.776191] [<c0048ad0>] (do_exit+0xb0/0x6bc) from [<c0055ee4>]
 (sys_reboot+0x110/0x1c0)
 [ 1286.784256] [<c0055ee4>] (sys_reboot+0x110/0x1c0) from [<c002fd40>]
 (ret_fast_syscall+0x0/0x30)
 }}}

 the unit does turn off.

 impact is unknown.

 on following boot, filesystem recovery was performed:

 {{{
 [    4.870971] EXT4-fs (mmcblk0p2): INFO: recovery required on readonly
 filesystem
 [    4.884841] EXT4-fs (mmcblk0p2): write access will be enabled during
 recovery
 [    5.177741] EXT4-fs (mmcblk0p2): recovery complete
 }}}

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Ticket URL: <http://dev.laptop.org/ticket/11785>
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