** Description changed:

  Sometime in the past week or so, it seems that unity8 acquired a new bug
  which causes it to use 100% CPU and stop responding.  I saw it happen on
  krillin rc-proposed 286 and 288 with silo 39 (address-book-app)
  installed.  Jibel saw it with a different silo, and mterry reports
  seeing it with yet another different silo.
  
  Details are being collected still, but this bug serves as a place to put
  the data together.
  
  For me, the steps involved to trigger it were:
- 1. Flash rc-proposed to a krillin.
- 2. Install silo 39, address-book-app, and reboot.  (probably not relevant)
- 3. Log in, configure time zone, disable automatic updates, configure login to 
use a passcode instead of passphrase, set screen to never turn itself off.
- 4. Go back to the app scope and launch address-book-app.
- 5. Tilt the phone to make the screen rotate.
+ 1. Wipe (or freshly flash) a krillin or mako
+ 2. Log in, configure time zone
+ 3. Tilt the phone to make the screen rotate.
  
  At this point, the UI stopped responding and 'top' showed 100% CPU being
  used by unity8.
  
  I tried to get data from gdb, but it wasn't very helpful:
  (gdb) bt
  #0  0xa803cce2 in ?? ()
  #1  0xa803cb98 in ?? ()
  Backtrace stopped: previous frame identical to this frame (corrupt stack?)
  
  More details are needed.

** Description changed:

- Sometime in the past week or so, it seems that unity8 acquired a new bug
- which causes it to use 100% CPU and stop responding.  I saw it happen on
- krillin rc-proposed 286 and 288 with silo 39 (address-book-app)
- installed.  Jibel saw it with a different silo, and mterry reports
- seeing it with yet another different silo.
- 
- Details are being collected still, but this bug serves as a place to put
- the data together.
- 
- For me, the steps involved to trigger it were:
- 1. Wipe (or freshly flash) a krillin or mako
+ To trigger:
+ 1. Wipe (or freshly flash) rc-proposed on a krillin or mako
  2. Log in, configure time zone
- 3. Tilt the phone to make the screen rotate.
+ 3. Tilt the phone to make the screen rotate
  
  At this point, the UI stopped responding and 'top' showed 100% CPU being
  used by unity8.
  
  I tried to get data from gdb, but it wasn't very helpful:
  (gdb) bt
  #0  0xa803cce2 in ?? ()
  #1  0xa803cb98 in ?? ()
  Backtrace stopped: previous frame identical to this frame (corrupt stack?)
  
  More details are needed.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to unity8 in Ubuntu.
https://bugs.launchpad.net/bugs/1560188

Title:
  unity8 hang w/ CPU pegged (needs more detail)

Status in Canonical System Image:
  Confirmed
Status in unity8 package in Ubuntu:
  Confirmed

Bug description:
  To trigger:
  1. Wipe (or freshly flash) rc-proposed on a krillin or mako
  2. Log in, configure time zone
  3. Tilt the phone to make the screen rotate

  At this point, the UI stopped responding and 'top' showed 100% CPU
  being used by unity8.

  I tried to get data from gdb, but it wasn't very helpful:
  (gdb) bt
  #0  0xa803cce2 in ?? ()
  #1  0xa803cb98 in ?? ()
  Backtrace stopped: previous frame identical to this frame (corrupt stack?)

  More details are needed.

To manage notifications about this bug go to:
https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560188/+subscriptions

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