[Expired for chromium-browser (Ubuntu) because there has been no
activity for 60 days.]
** Changed in: chromium-browser (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1321602
Title:
chromium browser chews 100% CPU in epoll_wait()
Status in chromium-browser package in Ubuntu:
Expired
Bug description:
This happens frequently (I have a script that monitors CPU usage).
$ top -b -n1 | head
top - 07:44:06 up 30 min, 3 users, load average: 1.35, 1.08, 0.82
Tasks: 329 total, 2 running, 327 sleeping, 0 stopped, 0 zombie
%Cpu(s): 17.4 us, 1.6 sy, 0.4 ni, 80.1 id, 0.5 wa, 0.1 hi, 0.0 si, 0.0
st
KiB Mem: 12182444 total, 5215508 used, 6966936 free, 338356 buffers
KiB Swap: 12455932 total, 0 used, 12455932 free. 2614244 cached Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
16165 james 20 0 1428628 72860 50624 R 95.5 0.6 3:11.69
chromium-browse
2908 james 20 0 1329964 485940 87724 S 12.7 4.0 2:17.25 firefox
15993 james 20 0 3303180 257376 104592 S 6.4 2.1 0:18.28
chromium-browse
$ sudo cat /proc/16165/stack
[<ffffffffffffffff>] 0xffffffffffffffff
$ sudo strace -fFv -s 1024 -p 16165
Process 16165 attached with 9 threads
[pid 16241] futex(0x7fe0ff7fdac4, FUTEX_WAIT_PRIVATE, 1, NULL <unfinished ...>
[pid 16182] futex(0x7fe0ffffeac4, FUTEX_WAIT_PRIVATE, 1, NULL <unfinished ...>
[pid 16181] futex(0x7fe1279b7f88, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 16179] futex(0x7fe1279e7e68, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 16178] futex(0x7fe1279d00f8, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 16180] futex(0x7fe1279eeb88, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 16177] futex(0x7fe1279fa918, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
[pid 16176] epoll_wait(3,
^C
ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: chromium-browser 34.0.1847.116-0ubuntu2
ProcVersionSignature: Ubuntu 3.15.0-1.5-generic 3.15.0-rc5
Uname: Linux 3.15.0-1-generic x86_64
ApportVersion: 2.14.2-0ubuntu4
Architecture: amd64
CurrentDesktop: Unity
Date: Wed May 21 07:42:35 2014
Desktop-Session:
DESKTOP_SESSION = ubuntu
XDG_CONFIG_DIRS = /etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg
XDG_DATA_DIRS =
/usr/share/ubuntu:/usr/share/gnome:/usr/local/share/:/usr/share/
Env:
MOZ_PLUGIN_PATH = None
LD_LIBRARY_PATH = None
InstallationDate: Installed on 2014-04-11 (39 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Daily amd64 (20140409)
SourcePackage: chromium-browser
UpgradeStatus: Upgraded to utopic on 2014-05-08 (12 days ago)
gconf-keys: /desktop/gnome/applications/browser/exec =
b'firefox\n'/desktop/gnome/url-handlers/https/command = b'sensible-browser
%s\n'/desktop/gnome/url-handlers/https/enabled =
b'true\n'/desktop/gnome/url-handlers/http/command = b'sensible-browser
%s\n'/desktop/gnome/url-handlers/http/enabled =
b'true\n'/desktop/gnome/session/required_components/windowmanager =
b''/apps/metacity/general/compositing_manager =
b''/desktop/gnome/interface/icon_theme =
b'gnome\n'/desktop/gnome/interface/gtk_theme = b'Clearlooks\n'
modified.conffile..etc.default.chromium.browser: [deleted]
mtime.conffile..etc.chromium.browser.default: 2014-05-06T16:47:55.748923
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