Public bug reported:
I've tried to do my homework but I apologize if this issue has already
been fixed or if I'm reporting it to the wrong package.
First off, here is my system and package info:
$ lsb_release -rd
Description: Ubuntu 10.04.4 LTS
Release: 10.04
$ apt-cache policy ibus
ibus:
Installed: 1.2.0.20091215-1ubuntu4
Candidate: 1.2.0.20091215-1ubuntu4
Version table:
*** 1.2.0.20091215-1ubuntu4 0
500 http://nl.archive.ubuntu.com/ubuntu/ lucid/main Packages
100 /var/lib/dpkg/status
I observe that when the directory $HOME/.config/ibus/bus does not exist,
*all* GTK apps poll for its creation at roughly four second intervals.
To wit:
$ strace -re inotify_add_watch -p $(pidof evince)
Process 11784 attached - interrupt to quit
0.000000 inotify_add_watch(10, "/home/bnoordhuis/.config/ibus/bus",
IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR)
= -1 ENOENT (No such file or directory)
4.001651 inotify_add_watch(10, "/home/bnoordhuis/.config/ibus/bus",
IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR)
= -1 ENOENT (No such file or directory)
3.999569 inotify_add_watch(10, "/home/bnoordhuis/.config/ibus/bus",
IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR)
= -1 ENOENT (No such file or directory)
4.000487 inotify_add_watch(10, "/home/bnoordhuis/.config/ibus/bus",
IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR)
= -1 ENOENT (No such file or directory)
^CProcess 11784 detached
$ strace -re inotify_add_watch -p $(pidof clock-applet)
Process 3647 attached - interrupt to quit
0.000000 inotify_add_watch(19, "/home/bnoordhuis/.config/ibus/bus",
IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR)
= -1 ENOENT (No such file or directory)
4.002690 inotify_add_watch(19, "/home/bnoordhuis/.config/ibus/bus",
IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR)
= -1 ENOENT (No such file or directory)
3.999550 inotify_add_watch(19, "/home/bnoordhuis/.config/ibus/bus",
IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR)
= -1 ENOENT (No such file or directory)
3.997275 inotify_add_watch(19, "/home/bnoordhuis/.config/ibus/bus",
IN_MODIFY|IN_ATTRIB|IN_CLOSE_WRITE|IN_MOVED_FROM|IN_MOVED_TO|IN_CREATE|IN_DELETE|IN_DELETE_SELF|IN_MOVE_SELF|IN_UNMOUNT|IN_ONLYDIR)
= -1 ENOENT (No such file or directory)
^CProcess 3647 detached
A simple `mkdir -p $HOME/.config/ibus/bus` resolves the issue.
Applications that are not in use don't poll and remain dormant. It seems
to have increased my laptop's battery life by about 15 minutes.
The bug may have been fixed upstream (I found a Fedora bug report[1]
that mentions it) but I haven't been able to pinpoint the commit.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=572611
** Affects: ibus (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1020212
Title:
gtk apps keep polling for $HOME/.config/ibus/bus dir
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