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[Bug 1483176] [NEW] Dash killed by OOM killer, never comes back

To: touch-packages@xxxxxxxxxxxxxxxxxxx
From: Alan Pope  <alan@xxxxxxxxxx>
Date: Mon, 10 Aug 2015 09:15:11 -0000
Reply-to: Bug 1483176 <1483176@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

My retail krillin phone has been running for a couple of days. I just
unlocked it and found a blank screen:-

http://people.canonical.com/~alan/screenshots/device-2015-08-10-100928.png

I checked dmesg and found entries about the oom killer and unity8-dash. 
I would expect unity8-dash to restart, but it doesn't seem like it did. 
My phone now needs a reboot to be usable.

http://paste.ubuntu.com/12046823/

[Sun Aug  9 23:30:38 2015] Killing 'unity8-dash' (3554), adj 50,
[Sun Aug  9 23:30:38 2015]   to free 90268kB on behalf of 'whoopsie-upload' (17110) because
[Sun Aug  9 23:30:38 2015]   cache 38364kB is below limit 65536kB for oom_score_adj 12
[Sun Aug  9 23:30:38 2015]   Free memory is -2784kB above reserved [gfp(0x200da)]
[Sun Aug  9 23:30:38 2015] [Ker_PM][request_suspend_state]wakeup (3->0) at 217470460401699 (2015-08-09 22:38:13.212608292 UTC)
[Sun Aug  9 23:30:38 2015] select 'terminal' (22023), adj 100, size 1151, to kill
[Sun Aug  9 23:30:38 2015] Killing 'terminal' (22023), adj 100,
[Sun Aug  9 23:30:38 2015]   to free 4604kB on behalf of 'whoopsie-upload' (17110) because
[Sun Aug  9 23:30:38 2015]   cache 49004kB is below limit 65536kB for oom_score_adj 12
[Sun Aug  9 23:30:38 2015]   Free memory is 460kB above reserved [gfp(0x200da)]
[Sun Aug  9 23:30:38 2015] select 'unity8-dash' (22032), adj 50, size 1121, to kill
[Sun Aug  9 23:30:38 2015] select 'upstart' (22040), adj 100, size 385, to kill
[Sun Aug  9 23:30:38 2015] Killing 'upstart' (22040), adj 100,
[Sun Aug  9 23:30:38 2015]   to free 1540kB on behalf of 'unity8-dash' (22032) because
[Sun Aug  9 23:30:38 2015]   cache 51660kB is below limit 65536kB for oom_score_adj 12
[Sun Aug  9 23:30:38 2015]   Free memory is -2260kB above reserved [gfp(0x200da)]
[Sun Aug  9 23:30:38 2015] mtk-tpd: TPD wake up
[Sun Aug  9 23:30:38 2015] mtk-tpd: TPD wake up done
[Sun Aug  9 23:30:38 2015] <MAGNETIC>  mag_context_obj ok------->hwm_obj->early_suspend=0 
[Sun Aug  9 23:30:39 2015] select 'unity8-dash' (22032), adj 50, size 1385, to kill
[Sun Aug  9 23:30:39 2015] Killing 'unity8-dash' (22032), adj 50,
[Sun Aug  9 23:30:39 2015]   to free 5540kB on behalf of 'unity8-dash' (22032) because
[Sun Aug  9 23:30:39 2015]   cache 55312kB is below limit 65536kB for oom_score_adj 12
[Sun Aug  9 23:30:39 2015]   Free memory is -2996kB above reserved [gfp(0x200da)]
[Sun Aug  9 23:30:39 2015] select 'sh' (22044), adj 50, size 63, to kill
[Sun Aug  9 23:30:39 2015] select 'initctl' (22047), adj 50, size 92, to kill
[Sun Aug  9 23:30:39 2015] Killing 'initctl' (22047), adj 50,
[Sun Aug  9 23:30:39 2015]   to free 368kB on behalf of 'whoopsie-upload' (17110) because
[Sun Aug  9 23:30:39 2015]   cache 54868kB is below limit 65536kB for oom_score_adj 12
[Sun Aug  9 23:30:39 2015]   Free memory is -1000kB above reserved [gfp(0x200da)]
[Sun Aug  9 23:30:39 2015] select 'upstart' (22051), adj 110, size 391, to kill
[Sun Aug  9 23:30:39 2015] Killing 'upstart' (22051), adj 110,
[Sun Aug  9 23:30:39 2015]   to free 1564kB on behalf of 'cgmanager' (693) because
[Sun Aug  9 23:30:39 2015]   cache 58912kB is below limit 65536kB for oom_score_adj 12
[Sun Aug  9 23:30:39 2015]   Free memory is -3020kB above reserved [gfp(0x2d2)]
[Sun Aug  9 23:30:40 2015] select 'sh' (22062), adj 110, size 114, to kill
[Sun Aug  9 23:30:40 2015] select 'gdbus' (22075), adj 110, size 440, to kill
[Sun Aug  9 23:30:40 2015] Killing 'gdbus' (22075), adj 110,
[Sun Aug  9 23:30:40 2015]   to free 1760kB on behalf of 'propertyservice' (22079) because
[Sun Aug  9 23:30:40 2015]   cache 60836kB is below limit 65536kB for oom_score_adj 12
[Sun Aug  9 23:30:40 2015]   Free memory is -2568kB above reserved [gfp(0x200da)]

** Affects: unity8 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1483176

Title:
  Dash killed by OOM killer, never comes back

Status in unity8 package in Ubuntu:
  New

Bug description:
  My retail krillin phone has been running for a couple of days. I just
  unlocked it and found a blank screen:-

  http://people.canonical.com/~alan/screenshots/device-2015-08-10-100928.png

  I checked dmesg and found entries about the oom killer and unity8-dash. 
  I would expect unity8-dash to restart, but it doesn't seem like it did. 
  My phone now needs a reboot to be usable.

  http://paste.ubuntu.com/12046823/

  [Sun Aug  9 23:30:38 2015] Killing 'unity8-dash' (3554), adj 50,
  [Sun Aug  9 23:30:38 2015]   to free 90268kB on behalf of 'whoopsie-upload' (17110) because
  [Sun Aug  9 23:30:38 2015]   cache 38364kB is below limit 65536kB for oom_score_adj 12
  [Sun Aug  9 23:30:38 2015]   Free memory is -2784kB above reserved [gfp(0x200da)]
  [Sun Aug  9 23:30:38 2015] [Ker_PM][request_suspend_state]wakeup (3->0) at 217470460401699 (2015-08-09 22:38:13.212608292 UTC)
  [Sun Aug  9 23:30:38 2015] select 'terminal' (22023), adj 100, size 1151, to kill
  [Sun Aug  9 23:30:38 2015] Killing 'terminal' (22023), adj 100,
  [Sun Aug  9 23:30:38 2015]   to free 4604kB on behalf of 'whoopsie-upload' (17110) because
  [Sun Aug  9 23:30:38 2015]   cache 49004kB is below limit 65536kB for oom_score_adj 12
  [Sun Aug  9 23:30:38 2015]   Free memory is 460kB above reserved [gfp(0x200da)]
  [Sun Aug  9 23:30:38 2015] select 'unity8-dash' (22032), adj 50, size 1121, to kill
  [Sun Aug  9 23:30:38 2015] select 'upstart' (22040), adj 100, size 385, to kill
  [Sun Aug  9 23:30:38 2015] Killing 'upstart' (22040), adj 100,
  [Sun Aug  9 23:30:38 2015]   to free 1540kB on behalf of 'unity8-dash' (22032) because
  [Sun Aug  9 23:30:38 2015]   cache 51660kB is below limit 65536kB for oom_score_adj 12
  [Sun Aug  9 23:30:38 2015]   Free memory is -2260kB above reserved [gfp(0x200da)]
  [Sun Aug  9 23:30:38 2015] mtk-tpd: TPD wake up
  [Sun Aug  9 23:30:38 2015] mtk-tpd: TPD wake up done
  [Sun Aug  9 23:30:38 2015] <MAGNETIC>  mag_context_obj ok------->hwm_obj->early_suspend=0 
  [Sun Aug  9 23:30:39 2015] select 'unity8-dash' (22032), adj 50, size 1385, to kill
  [Sun Aug  9 23:30:39 2015] Killing 'unity8-dash' (22032), adj 50,
  [Sun Aug  9 23:30:39 2015]   to free 5540kB on behalf of 'unity8-dash' (22032) because
  [Sun Aug  9 23:30:39 2015]   cache 55312kB is below limit 65536kB for oom_score_adj 12
  [Sun Aug  9 23:30:39 2015]   Free memory is -2996kB above reserved [gfp(0x200da)]
  [Sun Aug  9 23:30:39 2015] select 'sh' (22044), adj 50, size 63, to kill
  [Sun Aug  9 23:30:39 2015] select 'initctl' (22047), adj 50, size 92, to kill
  [Sun Aug  9 23:30:39 2015] Killing 'initctl' (22047), adj 50,
  [Sun Aug  9 23:30:39 2015]   to free 368kB on behalf of 'whoopsie-upload' (17110) because
  [Sun Aug  9 23:30:39 2015]   cache 54868kB is below limit 65536kB for oom_score_adj 12
  [Sun Aug  9 23:30:39 2015]   Free memory is -1000kB above reserved [gfp(0x200da)]
  [Sun Aug  9 23:30:39 2015] select 'upstart' (22051), adj 110, size 391, to kill
  [Sun Aug  9 23:30:39 2015] Killing 'upstart' (22051), adj 110,
  [Sun Aug  9 23:30:39 2015]   to free 1564kB on behalf of 'cgmanager' (693) because
  [Sun Aug  9 23:30:39 2015]   cache 58912kB is below limit 65536kB for oom_score_adj 12
  [Sun Aug  9 23:30:39 2015]   Free memory is -3020kB above reserved [gfp(0x2d2)]
  [Sun Aug  9 23:30:40 2015] select 'sh' (22062), adj 110, size 114, to kill
  [Sun Aug  9 23:30:40 2015] select 'gdbus' (22075), adj 110, size 440, to kill
  [Sun Aug  9 23:30:40 2015] Killing 'gdbus' (22075), adj 110,
  [Sun Aug  9 23:30:40 2015]   to free 1760kB on behalf of 'propertyservice' (22079) because
  [Sun Aug  9 23:30:40 2015]   cache 60836kB is below limit 65536kB for oom_score_adj 12
  [Sun Aug  9 23:30:40 2015]   Free memory is -2568kB above reserved [gfp(0x200da)]

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