Binder_2 process using 100% CPU on mako

Bug #1497167 reported by Marcus Tomlinson
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Canonical System Image
Confirmed
Undecided
Unassigned
android (Ubuntu)
New
Undecided
Ondrej Kubik

Bug Description

I just bootstrap flashed the latest image from channel=ubuntu-touch/rc-proposed/bq-aquaris.en onto my Nexus 4 (mako):

current build number: 115
device name: mako
channel: ubuntu-touch/rc-proposed/bq-aquaris.en
last update: 2015-09-18 08:08:10
version version: 115
version ubuntu: 20150918
version device: 20150911
version custom: mako-1.1

Using top I see the process "Binder_2" sitting at 100% CPU usage constantly. No amount of waiting or rebooting seems to rectify the problem. I see nothing interesting in syslog, but this is the output of logcat:

phablet@ubuntu-phablet:~$ /system/bin/logcat
--------- beginning of /dev/alog/main
D/libEGL ( 5655): loaded /system/lib/egl/libEGL_adreno.so
D/libEGL ( 5655): loaded /system/lib/egl/libGLESv1_CM_adreno.so
D/libEGL ( 5655): loaded /system/lib/egl/libGLESv2_adreno.so
I/Adreno-EGL( 5655): <qeglDrvAPI_eglInitialize:320>: EGL 1.4 QUALCOMM Build: I0404c4692afb8623f95c43aeb6d5e13ed4b30ddbDate: 11/06/13
W/Adreno-EGL( 5655): <qeglDrvAPI_eglSwapInterval:3795>: EGL_BAD_CONTEXT

I then reflashed my phone with channel=ubuntu-touch/rc-proposed/ubuntu and there was no Binder_2 CPU issue with that image:

current build number: 243
device name: mako
channel: ubuntu-touch/rc-proposed/ubuntu
last update: 2015-09-18 08:31:30
version version: 243
version ubuntu: 20150918
version device: 20150911
version custom: 20150918

Revision history for this message
Marcus Tomlinson (marcustomlinson) wrote :

Just manually flashed the mako with an older build:

current build number: 113
device name: mako
channel: ubuntu-touch/rc-proposed/bq-aquaris.en
last update: 2015-09-16 14:21:58
version version: 113
version ubuntu: 20150916
version device: 20150911
version custom: mako-1.1

and I don't see the Binder_2 CPU issue with that image.

Revision history for this message
Pat McGowan (pat-mcgowan) wrote :

any ideas?

Changed in android (Ubuntu):
assignee: nobody → Ondrej Kubik (w-ondra)
Changed in canonical-devices-system-image:
assignee: nobody → John McAleely (john.mcaleely)
status: New → Confirmed
Changed in canonical-devices-system-image:
assignee: John McAleely (john.mcaleely) → nobody
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