[Kernel-packages] [Bug 1234743] Re: init on samsung galaxy nexus is busy and consuming memory when playing an mp4
Thanks Colin. All the platform-device-changed events upstart is emitting are from omapfb.ko: KERNEL=omapfb DEVPATH=/devices/platform/omapfb SUBSYSTEM=platform ACTION=change DRIVER=omapfb MODALIAS=platform:omapfb SEQNUM=13545 USEC_INITIALIZED=1146951 VSYNC=12601146402237 So certainly looks like a device-specific kernel issue. Removing upstart... ** Summary changed: - init on samsung galaxy nexus is busy and consuming memory when playing an mp4 + omapfb module floods system with udev events on samsung galaxy nexus when playing mp4 ** No longer affects: upstart (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1234743 Title: omapfb module floods system with udev events on samsung galaxy nexus when playing mp4 Status in “linux” package in Ubuntu: Incomplete Bug description: Playing an mp4 on a Samsung Galaxy Nexus using today's image (3 Oct 2013) for 30 minutes I observed that init is busy and also consuming heap quite rapidly. Attached is the output from running health-check (found in PPA:colin- king/white) on init pid 1114. Key points: 1. messages being read/written at ~600 messages a second, hence the high context switch rate and ~4.9% CPU load. 2. heap consumption: ~30K a second using brk() and 2K a second via mmap To reproduce: Install health-check: sudo add-apt-repository ppa:colin-king/white sudo apt-get update && sudo apt-get install health-check Download a large mp4 to the phone. Keep screen from blanking using: sudo powerd-cli display on bright & then play the mp4: dbus-launch mediaplayer-app test.mp4 --desktop_file_hint=/usr/share/applications/mediaplayer-app.desktop --stage_hint=main_stage And then observe that init is busy for 300 seconds: ps -e | grep init 1 ?00:02:56 init 348 ?00:00:00 init 1114 ?00:03:22 init sudo health-check -p 1114 -d 300 Attached are my results for a 30 minute run. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1234743/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1234743] Re: init on samsung galaxy nexus is busy and consuming memory when playing an mp4
Attached is the requested log. ** Attachment added: "bug-1234743.log.gz" https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1234743/+attachment/3859201/+files/bug-1234743.log.gz -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1234743 Title: init on samsung galaxy nexus is busy and consuming memory when playing an mp4 Status in “linux” package in Ubuntu: Incomplete Status in “upstart” package in Ubuntu: Incomplete Bug description: Playing an mp4 on a Samsung Galaxy Nexus using today's image (3 Oct 2013) for 30 minutes I observed that init is busy and also consuming heap quite rapidly. Attached is the output from running health-check (found in PPA:colin- king/white) on init pid 1114. Key points: 1. messages being read/written at ~600 messages a second, hence the high context switch rate and ~4.9% CPU load. 2. heap consumption: ~30K a second using brk() and 2K a second via mmap To reproduce: Install health-check: sudo add-apt-repository ppa:colin-king/white sudo apt-get update && sudo apt-get install health-check Download a large mp4 to the phone. Keep screen from blanking using: sudo powerd-cli display on bright & then play the mp4: dbus-launch mediaplayer-app test.mp4 --desktop_file_hint=/usr/share/applications/mediaplayer-app.desktop --stage_hint=main_stage And then observe that init is busy for 300 seconds: ps -e | grep init 1 ?00:02:56 init 348 ?00:00:00 init 1114 ?00:03:22 init sudo health-check -p 1114 -d 300 Attached are my results for a 30 minute run. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1234743/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1234743] Re: init on samsung galaxy nexus is busy and consuming memory when playing an mp4
Hi Colin, This issue looks similar to bug 1201865 - Upstart is being spammed by the upstart-udev-bridge which itself is being spammed by all the SUBSYSTEM=platform udev events from the kernel. I cannot recreate the issue you are seeing on my nexus 7, so that coupled with the fact that the event are udev-related suggests a kernel bug. Please could you create the system job below, play your mp4 and see what's in /var/log/upstart/bug-1234743.log $ cat
