Bug#381297: [Pkg-utopia-maintainers] Bug#381297: dbus: X keyboard
interference debuging - small progress
Martin-Éric Racine
q-funk at iki.fi
Wed Aug 9 15:34:31 UTC 2006
ke, 2006-08-09 kello 00:31 +0300, Martin-Éric Racine kirjoitti:
> ti, 2006-08-08 kello 22:33 +0200, Sjoerd Simons kirjoitti:
> > On Thu, Aug 03, 2006 at 06:16:29PM +0300, Martin-Éric Racine wrote:
> > > I welcome further step-by-step instructions to perform, towards finding
> > > the source of this keyboard input disruption by dbus-enabled apps in X.
> >
> > I doubt it's dbus (thatis the session bus) itself but instead something on the
> > session bus. Which dies when you kill the session bus.
> >
> > Try looking at the difference between your procress listing before and
> > after killing the session bus. Probably same apps have quit (among which the
> > one guilty for your slugish keyboard)
>
> As mentioned in the original bug report, been there done that. NO SINGLE
> APPLICATION died as the result of killing dbug daemons.
Hmm. It seems I forgot to actually mention it. Anyhow, NO, there is no
other application that dies in the process of killing D-Bus components.
However, as suggested over IRC, I straced this and it indeed taps into
the keyboard:
me 2116 0.1 0.7 4452 1868 ? Ss 18:24 0:00 -bash startx -- vt1 -s 5 -quiet -p 5 -nolisten tcp dpms -dpime 2140 0.0 0.2 2428 684 ? S 18:24 0:00 \_ xinit /etc/X11/xinit/xinitrc -- /usr/bin/X vt1 -s 5 -quiroot 2141 4.0 5.0 18368 12400 tty1 Ss+ 18:24 0:04 \_ /usr/bin/X :0 vt1 -s 5 -quiet -p 5 -nolisten tcp dpm
me 2144 0.0 0.4 4776 1036 ? S 18:24 0:00 \_ x-session-manager
me 2182 0.0 0.2 4400 704 ? Ss 18:24 0:00 \_ /usr/bin/ssh-agent /usr/bin/dbus-launch --exit-wme 2187 0.9 0.7 4852 1900 ? SNs 18:24 0:00 \_ icewmbg
me 2188 0.7 1.6 8384 3964 ? Ss 18:24 0:00 \_ icewm
me 2189 0.1 0.8 6200 2056 ? Ss 18:24 0:00 \_ icewmtray
root 2117 0.0 0.1 1592 488 tty7 Ss+ 18:24 0:00 /sbin/getty 38400 tty7
me 2176 6.1 10.4 108172 25552 ? Sl 18:24 0:05 /usr/lib/firefox/firefox-bin
me 2185 0.0 0.2 2648 632 ? S 18:24 0:00 /usr/bin/dbus-launch --exit-with-session x-session-manager
me 2186 0.0 0.1 2052 424 ? Ss 18:24 0:00 dbus-daemon --fork --print-pid 8 --print-address 6 --sessionme 2193 0.3 0.9 4852 2324 ? S 18:24 0:00 /usr/lib/libgconf2-4/gconfd-2 10
nino:/root# strace -p 2185
Process 2185 attached - interrupt to quit
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340H", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\234", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340H", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340\310", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340H", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340\310", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340H", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340\310", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340H", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340\310", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\35", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, ".", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\256", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, ".", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\256", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, ".", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\256", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\235", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340H", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340\310", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340H", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340\310", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340H", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340\310", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340H", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340\310", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340H", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\340\310", 512) = 2
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, " ", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\240", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\27", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\227", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\23", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\223", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\34", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\234", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\34", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\234", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\34", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\234", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\34", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\234", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\1", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\201", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "$", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\244", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "#", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\243", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, " ", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\240", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\27", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\227", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\24", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\224", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "$", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\244", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\"", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\242", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "#", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\243", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "$", 512) = 1
select(5, [0 4], NULL, [0 4], NULL) = 1 (in [0])
ioctl(4, FIONREAD, [0]) = 0
read(0, "\244", 512) = 1
select(5, [0 4], NULL, [0 4], NULL
... and more of the same as I keep on typing on our test subject's
keyboard.
--
Martin-Éric Racine
http://q-funk.iki.fi
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