#11932 NORM Not Tri: Page fault on XO-1.5 loading initramfs after reboot loops

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#11932: Page fault on XO-1.5 loading initramfs after reboot loops
---------------------------------+------------------------------------------
 Reporter:  greenfeld            |                 Owner:  wmb at firmworks.com                
     Type:  defect               |                Status:  new                              
 Priority:  normal               |             Milestone:  Not Triaged                      
Component:  ofw - open firmware  |               Version:  Development build as of this date
 Keywords:                       |           Next_action:  diagnose                         
 Verified:  0                    |   Deployment_affected:                                   
Blockedby:                       |              Blocking:                                   
---------------------------------+------------------------------------------
 Two XO-1.5's (out of five) running reboot loops with 11.3.1 os885 and
 Q3C06 hung overnight showing the XO boot character on the display with no
 progress dots present.

 One of these XO-1.5s was equipped with serial output and logged a page
 fault on its 227'th reboot cycle.

 Reboots were scheduled via the "reboot" command and a script for 30
 seconds after rc.local started, rebooting the XOs approximately once per
 minute.

 The two XO's that hung seem to be custom built (one with a new
 motherboard, the other in a XO-1 case w/ Synaptics) so it is hard to say
 if this is representative of production XOs as a whole.

 {{{
 [   51.066939] init: olpc-switchd main process (808) terminated with
 status 1
 [   51.081568] init: olpc-kbdshim-udev main process (810) terminated with
 status
  1
 [   51.108289] init: tty (/dev/tty2) main process (820) killed by TERM
 signal
 [   51.123757] init: tty (/dev/tty3) main process (822) killed by TERM
 signal
 [   52.165182] dcon_freeze_store: 0
 [   52.219248] init: plymouth-shutdown main process (1229) terminated with
 statu
 s 1
 [   52.258548] init: splash-manager main process (1215) terminated with
 status 1
 [   52.703139] dcon_freeze_store: 1
 [   52.706609] dcon_source_switch to DCON
 [   52.722842] olpc-dcon: missed loading, retrying
 [   52.809732] olpc-dcon: The DCON has control
 [   53.432613] init: Disconnected from system bus
 [   53.582562] init: ttySx main process (237) killed by TERM signal
 [   53.588687] init: ttySx main process ended, respawning
 [   55.625708] init: ttySx main process (1293) killed by KILL signal
 [   55.637384] init: ttySx main process ended, respawning
 [   55.648326] init: powerd main process (809) killed by KILL signal
 [   58.465179] init: Re-executing /sbin/init
 [   62.779969] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
 [   63.951102] Restarting system.
 [   63.954370] machine restart
 +
 Forthmacs
 Type 'i' to interrupt stand-init sequence
 USB2 devices:
 USB1 devices:
 OLPC D7, 1 GiB memory installed, 4 GB internal storage, S/N SHC10000001
 OpenFirmware  Q3C06   EC Firmware Ver:2.2.10   2012-06-11 21:52:18 UTC

 Type the Esc key to interrupt automatic startup
 Boot device: /sd/disk at 3:\boot\olpc.fth  Arguments:
 Boot device: /pci/sd at c/disk at 3:\boot\vmlinuz  Arguments:
 console=ttyS0,115200 con
 sole=tty0 fbcon=font:SUN12x22
 Loading ramdisk image from /pci/sd at c/disk at 3:\boot\initrd.img ...
 Page Fault
 ok
 }}}

-- 
Ticket URL: <http://dev.laptop.org/ticket/11932>
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