Comment 0 for bug 1340120

From time to time, some application uses 100% CPU but is not running in foreground (not even in the list of recent application on the application scope)

For example, in the top output below gallery-app uses 100% CPU, but it is not 'launched' (not in recent apps)

top - 12:09:39 up 2:41, 2 users, load average: 1,82, 1,48, 2,31
Tasks: 250 total, 1 running, 246 sleeping, 3 stopped, 0 zombie
%Cpu(s): 3,1 us, 5,5 sy, 0,6 ni, 90,2 id, 0,6 wa, 0,0 hi, 0,0 si, 0,0 st
KiB Mem: 1878580 total, 1775476 used, 103104 free, 33104 buffers
KiB Swap: 524284 total, 2144 used, 522140 free. 1023324 cached Mem

  PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
 3895 phablet 20 0 302372 96608 40712 S 117,0 5,1 22:21.13 gallery-app
15556 phablet 20 0 5820 1088 752 R 35,6 0,1 0:00.13 top

I attached the output of strace for the gallery-app.
It is not specific to the gallery-app, I noticed this behavior with system-settings too.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: unity8 7.90+14.10.20140709.2-0ubuntu1
Uname: Linux 3.4.0-5-mako armv7l
ApportVersion: 2.14.4-0ubuntu1
Architecture: armhf
Date: Thu Jul 10 11:56:49 2014
InstallationDate: Installed on 2014-07-10 (0 days ago)
InstallationMedia: Ubuntu Utopic Unicorn (development branch) - armhf (20140710-020204)
SourcePackage: unity8
UpgradeStatus: No upgrade log present (probably fresh install)