The cpu is pegged on qmlscene
phablet@ubuntu-phablet:~$ top -n1 -b
top - 19:17:07 up 1:57, 1 user, load average: 0.00, 0.01, 0.05
Tasks: 236 total, 1 running, 215 sleeping, 20 stopped, 0 zombie
%Cpu(s): 25.1 us, 30.5 sy, 0.0 ni, 43.1 id, 1.3 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem: 983788 total, 911036 used, 72752 free, 20360 buffers
KiB Swap: 524284 total, 360248 used, 164036 free. 146268 cached Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
32043 phablet 20 0 364460 31836 21464 S 91.1 3.2 71:46.72 qmlscene
11505 phablet 20 0 6088 1112 796 R 16.1 0.1 0:00.06 top
1941 root 20 0 238252 5780 4140 S 10.7 0.6 4:34.14 unity-syst+
28727 phablet 20 0 417516 64080 32800 S 5.4 6.5 6:57.64 unity8
1 root 20 0 3860 2056 1004 S 0.0 0.2 0:15.02 init
[service]
base: system-image.ubuntu.com
http_port: 80
https_port: 443
channel: ubuntu-touch/ubuntu-rtm/14.09-proposed
device: krillin
build_number: 44
version_detail:
ubuntu=20140916,device=20140912-23825b8,custom=1410739265,version=44
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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/1360593
Title:
unity8 freezes randomly
Status in “unity8” package in Ubuntu:
Confirmed
Bug description:
krillin #205
[Sorry for the poor description]
On krillin UI freeze randomly. For example on the screenshot it
occurred while dragging the greeter to unlock the phone. I was playing
music, woke up the phone with the power button to turn the display on
and did a right edge swipe to remove the greeter.
This has been reported by several people in the past days, but I
didn't find a pattern to reproduce this bug reliably.
There is no crash in /var/crash and no apport activity.
If I press the power button to turn the screen off/on again, the greeter is
completely displayed (ie. doesn't cover half of the screen like the screenshot)
but the UI is not responsive to gestures or input events. A long press on the
power button shows the shutdown dialog but none of the button can be pressed.
top doesn't show any specific process going crazy
ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: unity8 8.00+14.10.20140822-0ubuntu1
Uname: Linux 3.4.67 armv7l
ApportVersion: 2.14.6-0ubuntu2
Architecture: armhf
Date: Sat Aug 23 14:18:00 2014
InstallationDate: Installed on 2014-08-23 (0 days ago)
InstallationMedia: Ubuntu Utopic Unicorn (development branch) - armhf
(20140823-020205)
SourcePackage: unity8
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1360593/+subscriptions
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