Since some time the two cpu's of my system (Debian sid running on a
thinkpad laptop x60s) are constantly busy up to the point that even the
key-repeat (pushing down some key for repetitious input) doesn't work
anymore when using an external usb keyboard.

the system monitor shows for example:

CPU History: ... cpu1 76.2%, CPU2 77.8%

and using top I find:

Cpu(s): 70.3%us, 5.4%sy, 0.0%ni, 21.6%id, 0.0%wa, 0.0%hi, 2.7%si, 0.0%st

but no busy processes are listed (Xorg: 4% cpu, gnome-system-monitor 3%
cpu, hald 1%cpu, epiphany-browse 1%cpu, top 1%cpu, mysqld 0%cpu...)

I wouldn't mind so much if I still could use crtr-h, ctrl-f, ctrl-n, ...
normally in my emacs. But for the moment even editing a simple text
file is a pain because of key-repeat being so slow

Any idea what could be the reason?

Thanks, Dietrich



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susmit shannigrahi wrote:

> Generally the final/pre-final year engineering students need to do
> some project work on a topic.
> What I personally saw that they desperately search for one.
>
> we can make a lot of new contributors if we provide them with a
> project to work, some guidence
> and may be a certificate at the end. (As they say, target this segment )

Quite by chance this was the same topic that I broached to Spot
yesterday afternoon. And it turns out that a good place to push these
potential contributors would be towards doing "Fedora QE" starting up
with learning how to triage, process and work the bug queue and
additionally coming up with Test Cases.




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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 06/18/08 03:50, Dietrich Bollmann wrote:
> Since some time the two cpu's of my system (Debian sid running on a
> thinkpad laptop x60s) are constantly busy up to the point that even the
> key-repeat (pushing down some key for repetitious input) doesn't work
> anymore when using an external usb keyboard.
>
> the system monitor shows for example:
>
> CPU History: ... cpu1 76.2%, CPU2 77.8%
>
> and using top I find:
>
> Cpu(s): 70.3%us, 5.4%sy, 0.0%ni, 21.6%id, 0.0%wa, 0.0%hi, 2.7%si, 0.0%st
>
> but no busy processes are listed (Xorg: 4% cpu, gnome-system-monitor 3%
> cpu, hald 1%cpu, epiphany-browse 1%cpu, top 1%cpu, mysqld 0%cpu...)
>
> I wouldn't mind so much if I still could use crtr-h, ctrl-f, ctrl-n, ...
> normally in my emacs. But for the moment even editing a simple text
> file is a pain because of key-repeat being so slow
>
> Any idea what could be the reason?

I hate to say this, but what happens if you reboot?

- --
Ron Johnson, Jr.
Jefferson LA USA

"Kittens give Morbo gas. In lighter news, the city of New New
York is doomed."
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Hi Ron,

On Wed, 2008-06-18 at 04:40 -0500, Ron Johnson wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 06/18/08 03:50, Dietrich Bollmann wrote:
> > Since some time the two cpu's of my system (Debian sid running on a
> > thinkpad laptop x60s) are constantly busy up to the point that even the
> > key-repeat (pushing down some key for repetitious input) doesn't work
> > anymore when using an external usb keyboard.
> >
> > the system monitor shows for example:
> >
> > CPU History: ... cpu1 76.2%, CPU2 77.8%
> >
> > and using top I find:
> >
> > Cpu(s): 70.3%us, 5.4%sy, 0.0%ni, 21.6%id, 0.0%wa, 0.0%hi, 2.7%si, 0.0%st
> >
> > but no busy processes are listed (Xorg: 4% cpu, gnome-system-monitor 3%
> > cpu, hald 1%cpu, epiphany-browse 1%cpu, top 1%cpu, mysqld 0%cpu...)
> >
> > I wouldn't mind so much if I still could use crtr-h, ctrl-f, ctrl-n, ...
> > normally in my emacs. But for the moment even editing a simple text
> > file is a pain because of key-repeat being so slow
> >
> > Any idea what could be the reason?
>
> I hate to say this, but what happens if you reboot?

Still the same problem after rebooting. Sometimes I had the impression
that things are worse after rebooting and become better if I wait for a
while. Than I thought 'beagle' might be the reason and deinstalled it -
without any change. Today my computer runs for hours already and the
little "System Monitor" applet in my gnome panel is at least half
blue all the time (blue is used for showing activity). The system
monitor shows peaks, not a constant activity pattern. If it was Windows
I would think about some virus - but I am using linux...

Could this be related to the new kernel?

Thanks (will try to reboot once more now)

Dietrich

PS: I wrote about the same problem another email already - with the
subject: repeated input by holding down a key doesn't work when using a
USB keyboard

Just in order to relate the two threads I include it here once again:

> Hi,
>
> Since my last update of the debian sid system on my laptop
> the repeated input of the same key by holding down the key
> for a longer time doesn't work anymore when using an
> external USB keyboard.
>
> I am using CTRL-b / CTRL-f / CTRL-p / CTRL-n etc. all the time
> when editing texts - and find myself forced to hit the key an
> infinite number of times like a professional gamer instead of
> just pushing it once and holding it down for a longer time
>
> The laptop keyboard works as before...
>
> Any hint?
>
> Thanks, Dietrich
>


> - --
> Ron Johnson, Jr.
> Jefferson LA USA
>
> "Kittens give Morbo gas. In lighter news, the city of New New
> York is doomed."
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> 24EAmwb7exiRvR7czSyU0ddxcr0a70uQ
> =wjYq
> -----END PGP SIGNATURE-----
>
>


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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 06/18/08 05:10, Dietrich Bollmann wrote:
> Hi Ron,
>
> On Wed, 2008-06-18 at 04:40 -0500, Ron Johnson wrote:
>> On 06/18/08 03:50, Dietrich Bollmann wrote:
>> Since some time the two cpu's of my system (Debian sid running on a
>> thinkpad laptop x60s) are constantly busy up to the point that even the
>> key-repeat (pushing down some key for repetitious input) doesn't work
>> anymore when using an external usb keyboard.
>>
>> the system monitor shows for example:
>>
>> CPU History: ... cpu1 76.2%, CPU2 77.8%
>>
>> and using top I find:
>>
>> Cpu(s): 70.3%us, 5.4%sy, 0.0%ni, 21.6%id, 0.0%wa, 0.0%hi, 2.7%si, 0.0%st
>>
>> but no busy processes are listed (Xorg: 4% cpu, gnome-system-monitor 3%
>> cpu, hald 1%cpu, epiphany-browse 1%cpu, top 1%cpu, mysqld 0%cpu...)
>>
>> I wouldn't mind so much if I still could use crtr-h, ctrl-f, ctrl-n, ...
>> normally in my emacs. But for the moment even editing a simple text
>> file is a pain because of key-repeat being so slow
>>
>> Any idea what could be the reason?
> I hate to say this, but what happens if you reboot?
>
> Still the same problem after rebooting. Sometimes I had the impression
> that things are worse after rebooting and become better if I wait for a
> while. Than I thought 'beagle' might be the reason and deinstalled it -
> without any change. Today my computer runs for hours already and the
> little "System Monitor" applet in my gnome panel is at least half
> blue ÿall the time (blue is used for showing activity). The system
> monitor shows peaks, not a constant activity pattern. If it was Windows
> I would think about some virus - but I am using linux...
>
> Could this be related to the new kernel?

Hmm. I roll my own kernel, so I don't know which kernel you use.
And you say that top(1) sorted by processor usage shows nothing?

If your Stinkpad is directly connected to the Intarweb, it's
*possible* that it's been infected by a worm.

> Thanks (will try to reboot once more now)

- --
Ron Johnson, Jr.
Jefferson LA USA

"Kittens give Morbo gas. In lighter news, the city of New New
York is doomed."
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>-----Original Message-----
>From: diresu@web.de [mailto:diresu@web.de]
>Sent: Wednesday, June 18, 2008 3:51 AM
>To: debian-user@lists.debian.org
>Subject: cpu constantly busy on debian sid without doing anything...
>
>Since some time the two cpu's of my system (Debian sid running on a
>thinkpad laptop x60s) are constantly busy up to the point that even the
>key-repeat (pushing down some key for repetitious input) doesn't work
>anymore when using an external usb keyboard.
>
>the system monitor shows for example:
>
>CPU History: ... cpu1 76.2%, CPU2 77.8%
>
>and using top I find:
>
>Cpu(s): 70.3%us, 5.4%sy, 0.0%ni, 21.6%id, 0.0%wa, 0.0%hi, 2.7%si,
0.0%st
>
>but no busy processes are listed (Xorg: 4% cpu, gnome-system-monitor 3%
>cpu, hald 1%cpu, epiphany-browse 1%cpu, top 1%cpu, mysqld 0%cpu...)
>
>I wouldn't mind so much if I still could use crtr-h, ctrl-f, ctrl-n,
...
>normally in my emacs. But for the moment even editing a simple text
>file is a pain because of key-repeat being so slow
>
>Any idea what could be the reason?
>
>Thanks, Dietrich
>
>--
>To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org
>with a subject of "unsubscribe". Trouble? Contact
>listmaster@lists.debian.org

I once saw a similar problem. I don't know if this is your case, but I
will explain what I did.

I checked everything from the hard drive with iostat to the memory, my
cpu was being hammered much like yours but nothing seemed to fess up to
doing it. I installed htop (http://htop.sourceforge.net/ also in the
repos for apt-get goodness) and then I had it display Kernel threads
(run htop at the command line and sort by cpu with F6 then Shift+K to
show Kernel threads). In my case it was kacpid that was chewing up my
cpu. So I edited grub to be acpi=off and it went away.

That was sometime ago, but a quick Google search shows that it still
happens to people on Debian and Ubuntu systems. I have no idea what
causes it.

Hope that helps!
~Stack~


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Stackpole, Chris wrote:
> I once saw a similar problem. I don't know if this is your case, but I
> will explain what I did.
>
> I checked everything from the hard drive with iostat to the memory, my
> cpu was being hammered much like yours but nothing seemed to fess up to
> doing it. I installed htop (http://htop.sourceforge.net/ also in the
> repos for apt-get goodness) and then I had it display Kernel threads
> (run htop at the command line and sort by cpu with F6 then Shift+K to
> show Kernel threads). In my case it was kacpid that was chewing up my
> cpu. So I edited grub to be acpi=off and it went away.
>
> That was sometime ago, but a quick Google search shows that it still
> happens to people on Debian and Ubuntu systems. I have no idea what
> causes it.

FWIW, I ran into this problem on my laptop recently. Eventually, I
realized that it was so humid out that the lid close sensor was
malfunctioning, generating a constant stream of acpi lid open events.
(Apparently no lid close events, luckily.) Each of these caused kacpid
to do some work, as well as pass an event on to acpid, which ran a lid
open program (which didn't really do anything).

I eventually killed acpid, which controlled the load somewhat. And
waited for things to dry out to the point the acpi events stopped
happening.

Moral of the story: It could be any crazy kind of hardware problem you
can imagine..

Note that top is not very good at showing the load caused by lots of
very shorted lived processes being started, so it's easy to miss this
kind of problem in it. I straced acpid to figure out what was going on.

--
see shy jo

On Wed, Jun 18, 2008 at 07:10:36PM +0900, Dietrich Bollmann wrote:
> Hi Ron,
>
> On Wed, 2008-06-18 at 04:40 -0500, Ron Johnson wrote:
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > On 06/18/08 03:50, Dietrich Bollmann wrote:

[snip]

> >
> > I hate to say this, but what happens if you reboot?
>
> Still the same problem after rebooting. Sometimes I had the impression
> that things are worse after rebooting and become better if I wait for a
> while. Than I thought 'beagle' might be the reason and deinstalled it -
> without any change. Today my computer runs for hours already and the
> little "System Monitor" applet in my gnome panel is at least half
> blue all the time (blue is used for showing activity). The system
> monitor shows peaks, not a constant activity pattern. If it was Windows
> I would think about some virus - but I am using linux...
>
> Could this be related to the new kernel?
>
> Thanks (will try to reboot once more now)
>

can I suggest if it doesn't go away, try rebooting into an old kernel.
if the problem still exists (and you are using grub). Stop grub at boot
up edit your boot line and add in init=/bin/bash, see if you are having
the same problem from here.

What you have done is started a command line shell instead of init (I
find this much better than going into single user mode as nothing else
is started).

Then work through the /etc/rc* files starting them one by one (have a
look in /etc/inittab it will tell you what is started in what order).


for example on my machine
========================================
# /etc/inittab: init(8) configuration.
# $Id: inittab,v 1.91 2002/01/25 13:35:21 miquels Exp $

# The default runlevel.
id:2:initdefault:

# Boot-time system configuration/initialization script.
# This is run first except when booting in emergency (-b) mode.
si::sysinit:/etc/init.d/rcS

# What to do in single-user mode.
~:S:wait:/sbin/sulogin

# /etc/init.d executes the S and K scripts upon change
# of runlevel.
#
# Runlevel 0 is halt.
# Runlevel 1 is single-user.
# Runlevels 2-5 are multi-user.
# Runlevel 6 is reboot.

l0:0:wait:/etc/init.d/rc 0
l1:1:wait:/etc/init.d/rc 1
l2:2:wait:/etc/init.d/rc 2
l3:3:wait:/etc/init.d/rc 3
l4:4:wait:/etc/init.d/rc 4
l5:5:wait:/etc/init.d/rc 5
l6:6:wait:/etc/init.d/rc 6
# Normally not reached, but fallthrough in case of emergency.
z6:6:respawn:/sbin/sulogin
======================

so level 2 is my default level

/etc/init.d/rcS - get run on boot up so start here
then run through each S??* scripts in rc2.d and check after each one to
make sure you cpu usage is okay



Alex


> Dietrich
>
> PS: I wrote about the same problem another email already - with the
> subject: repeated input by holding down a key doesn't work when using a
> USB keyboard
>

[snip]

>
>
> > - --
> > Ron Johnson, Jr.
> > Jefferson LA USA
> >
> > "Kittens give Morbo gas. In lighter news, the city of New New
> > York is doomed."
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v1.4.9 (GNU/Linux)
> >
> > iEYEARECAAYFAkhY2BwACgkQS9HxQb37XmcGBgCeNDVG5rlMLn LG0f8wnQ7d4ZHi
> > 24EAmwb7exiRvR7czSyU0ddxcr0a70uQ
> > =wjYq
> > -----END PGP SIGNATURE-----
> >
> >
>
>
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>
>

--
Lady Astor was giving a costume ball and Winston Churchill asked her what
disguise she would recommend for him. She replied, "Why don't you come
sober, Mr. Prime Minister?"

Dietrich Bollmann wrote:

> Any idea what could be the reason?

Others have pointed out some of the excellent guesses that could be the
possible culprit. My only suggestion is to go back to the command line and
disable X. Then verify whether it is an X related problem or a kernel
related issue.

hth
raju
--
Kamaraju S Kusumanchi
http://www.people.cornell.edu/pages/kk288/
http://malayamaarutham.blogspot.com/


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