I'm on 10.04 and as many other in the comments a Lenovo T61. I noticed
this bug today as it was interfering with sound playback in VLC and
MPlayer.
I'm seeing what many describe here: cpu spikes about every 3 seconds.
Running 'top' shows me a process called 'events/0' is the one doing
this.
I'm
The 'remove battery' trick worked for me as well.
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events/0 spikes CPU every 3 seconds since upgrade to 2.6.31-20
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Hello
Issue persists on the last distributions / kernel
Same issue Lenovo R61i Ubuntu 12.04 LTS.
To take out the batery is not a good slution specialy if people are
using their laptop with no power suply.
Something new on this bug?
Best regards
Isaac Alves
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I'm using Debian Squeeze, kernel 2.6.32-5 on a Thinkpad A31.
/var/log/kern.log is full of
eth1: New link status: Connected (0001)
Several log messages every few seconds
Doing ifconfig eth1 down stops the event/0 cpu hogging as well as the kernel
error messages.
However, this is hardly a
Same problem here on Thinkpad X61s, Ubuntu 10.04, 32 bit. I had recently
done the following:
- upgraded from 2gb to 4gb ram
- changed to the pae kernel version to support the 4gb of ram
- worked happily on my computer with the new kernel with 4gb of available ram
- suspended my computer
- used
the ifconfig fix worked for me as well. just to be sure I tried the
battery fix as well and all seems to be fine after reboot.
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Title:
events/0
hallo,
having the same problem with thinkpad x61s type 7667 82566MM Gigabit Network
Connection and ubuntu 10.04 2.6.32.29 generic 32bit.
i'm having this problem as long as i have this computer , but recently typing
was going in slomotion.
i asked a 'unix friend' to have a look and he figured
T61 2.6.35-25-generic 64-bit kernel. Rebooted this morning after some
updates and had this exact same problem. Machine was very sluggish with
events/0 or events/1 using the CPU every couple seconds. eth0 was not
available. ifconfig eth0 down immediately fixed the problem but I use
eth0 so not a
Upgraded netbook 10.04 - 10.10. events process hogging cpu and
slowing down the system.
Linux lenovo-t61 2.6.35-25-generic #44-Ubuntu SMP Fri Jan 21 17:40:48 UTC 2011
i686 GNU/Linux
Ubuntu 10.10
Downing eth0 fixed problem immediately, battery trick worked.
:/
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I experienced exactly the same problem with my Thinkpad T61.
One evening after waking the computer I noticed that the battery wasn't being
recognized. I put the computer to sleep, pulled it out and put it back in, and
after this the problem started with the wired ethernet.
The activity lights
Same problem happening on my T61. Ethernet lights are both lit;
ifconfig eth0 down removes the cpu spkies on events/0 process. This
happened this morning running Ubuntu 10.04. Just upgraded to Ubuntu
10.10 (running 2.6.35-24 kernel) and it stills happens on this kernel.
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Oh and by the way the low-tech workaround (shutdown, unplug, remove
battery) worked.
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events/0 spikes CPU every 3 seconds since upgrade to
same here: Lenovo T61 2.6.35-24-generic
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events/0 spikes CPU every 3 seconds since upgrade to 2.6.31-20
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The problem has returned since my latest kernel upgrade - 10.10
(Maverick), 2.6.35-23-generic-pae. Lenovo T61p. I guess a full power
off will fix it again, but it's a poor solution (because if you don't
know how to fix it you're stuck with no ethernet and a spiking cpu).
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** Changed in: linux (Ubuntu)
Status: Invalid = Opinion
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Title:
events/0 spikes CPU every 3 seconds since upgrade to 2.6.31-20
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Since switching to 2.6.35-23-generic-pae today I see this bug on my Dell
desktop. It obviously can't be fixed by removing any battery…
100% spikes every 3 seconds, no connection (0 TX/RX bytes), stops when
eth0 is pulled down.
When removing and re-adding using modprobe it uses 100% CPU for a
Oddly enough, the error persists when switching back to 2.6.35-22
-generic-pae.
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Title:
events/0 spikes CPU every 3 seconds since upgrade to
I can confirm this bug on a Thinkpad R61, running Ubuntu 10.10 ifconfig eth0
down worked for me as well.
This laptop has run ubuntu 8.10 previously for several years without any issues.
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events/0 spikes CPU every 3 seconds since upgrade to 2.6.31-20
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You
I can confirm this bug for T61 as well. On my T61 this bug appeared
after the last update (November, 14th, 2010) on Ubuntu 10.10. Before
everything worked fine.
ifconfig eht0 down works for me as well.
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events/0 spikes CPU every 3 seconds since upgrade to 2.6.31-20
I confirm the last post:
On my T61 this bug appeared after the last update (November, 15th, 2010) on
Ubuntu 10.10. Before everything worked fine.
ifconfig eht0 down works for me as well.
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Battery out, and unplug for a while, worked for me also. (Lenovo T61,
Maverick)
Previously I tried booting with acpi=off, didn't help. I tried ifconfig
eth0 down, didn't have any effect. Tried booting previous kernel, but it
strangely had the same problem.
I wonder what was it that triggered
same problem here on a lenovo T61p. and also for me: ifconfig eth0
down fixed the problem for the time being; I didn't yet try the remove
battery trick either.
took me long to find this thread.. I measured the intervals and on my
machine they are exactly 4 seconds between each stop / freeze. also
still see this bug in ubuntu 10.10 on my Lenovo x61s.
I use sudo ifconfig eth0 down to solve the problem temporary...
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Bug there on latest update of Ubuntu 10.04 (update performed 2010-Oct-21).
Computer is a Lenovo X61s.
Does anyone have a solution for this. I had the same problem several months ago
and am sorry to see it back?
I can't use the ethernet port when this bug is there which is how I usually
connect
Still there in Ubuntu 10.10, just had to pull eth0 down, which solved
this issue for now on my Lenovo W510.
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Low-tech solution worked for me. Thinkpad T61p with lagspikes and non-
functioning ethernet.
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I can also confirm the same problem.
Lenovo ThinkPad T61 (Type 7663-13U)
Running Ubuntu Lucid 10.04 LTS (up to date as of Sep. 23, 2009)
First observed problem after I updated to the latest version of 10.04
LTS earlier this week. Initially noticed a lot of lag, checked on top
and found that
Wanted to confirm I had the exact same problem.
Lenovo T61
Has never ran Windows. Put Ubuntu on the day I got this laptop over 3 years
ago.
I can't say for sure that this started occurring with kernel 2.6.32-24 or not,
but just happened to notice the lagging, and spiking cpu. events/0|1 was
I ran into this problem yesterday. Tried ifconfig and it would fix the
problem for the session but the problem would return on. Got back to
this problem an hour ago and tried removing the battery and power
supply. Problem has been solved.
However I am interested in the fact that so many Ubuntu
Since today I'm affected too. I use Xubuntu Lucid/32-bit on a Lenovo
X61s. ifconfig eth0 down fixed the problem for the time being; I
didn't yet try the remove battery trick.
Re comment #32: I don't have Windows on my computer, that's not the
issue.
I don't understand why the bug has been marked
I had this same problem about a week ago on my Lenovo X61t, ifdown eth0
fixed the problem.
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events/0 spikes CPU every 3 seconds since upgrade to 2.6.31-20
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I have a lenovo R61 7736-CTO
In the last 2 weeks I have had strange slowness issues that have never
happened on my laptop before. One of the reasons for using Ubuntu was
the support fast startup speeds and the quick response of the apps
including firefox.
I took the advice of the above and ran
I'm seeing the same issue with the latest kernal (2.6.32-24) on a Lenovo
T61p with Lucid. Running 'sudo ifconfig eth0 down' does seem to solve
the problem with the CPU spikes, although my ethernet lights remain
active which is odd.
I'm not convinced this is truly a hardware issue, but if I have
An interesting theory, although: additional data point, my
symptom-exhibiting R61 has never booted any flavor of Windows.
On 06/19/2010 12:00 PM, Wayne Scott wrote:
My daughter has a T61 with the same problem. (running stock 10.04)
Running 'ifconfig eth0 down' fixed the problem. That machine
My daughter has a T61 with the same problem. (running stock 10.04)
Running 'ifconfig eth0 down' fixed the problem. That machine also has a
Vista partition. I haven't proved it yet, but my theory is that
everything was working fine until she rebooted into Vista and after
returning to linux the
I've used the same Lenovo ThinkPad T61 (64665VG) since February 2008 and
I've never had any issues with wired ethernet (eth0) before I installed
Lucid. I'm surprised that you closed this software related bug without
seeking an explanation.
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events/0 spikes CPU every 3 seconds since upgrade to
Ah, I had the same problem since the latest Ubuntu updates 100% cpu
spiking every few seconds... solved by killing eth0. Then shutdown,
unplug, remove battery fixed it for me too.
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events/0 spikes CPU every 3 seconds since upgrade to 2.6.31-20
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You
marking invalid due to the fix being removal of the battery.
~JFo
** Changed in: linux (Ubuntu)
Status: In Progress = Invalid
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Yes, works for me too. I'm delighted to have Ethernet back; not so
happy at time wasted on flaky hardware. As far as I'm concerned, this
report can be marked as resolved. Thanks for the tip, jkjaer, and
thanks everyone for assistance.
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events/0 spikes CPU every 3 seconds since upgrade to
JohnAspinall: Ever since I installed Ubuntu Lucid a couple of weeks ago,
I have suffered form the same problem as you, i.e., repeated CPU-spikes
and ethernet port lights on (on a lenovo T61).
Today I tried to experiment a little by loading a live CD with Ubuntu
Jaunty, but I experienced the same
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
ArecordDevices:
List of CAPTURE Hardware Devices
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 2/2
Subdevice #0: subdevice #0
Subdevice #1: subdevice #1
I hope this helps. I tried to make a new bug on PID 10 (the runaway
events process) but it won't let me report on a process that isn't mine.
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Charlie / John,
I'd really like to get new bug reports from you so that we can look at each
individually. This will allow me to get fresh data on both of your hardware and
enable the team to identify issues as they look into the logging provided.
Thanks!
~JFo
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events/0 spikes CPU every
Happy to so, but like I said up-thread I'm new at this so will need some
additional degree of hand-holding.
Questions:
1. I assume you would like the new bug report to point back at this one; what
is the formal way of doing so?
2. I see in this report a whole collection of logs and diagnostic
Argh, it's intermittent for me, I can't get myself into the buggy state
again now after running in the older kernel for a day! I'll post fresh
logs if symptoms return. JohnAspinall, perhaps you can queue up fresh
logs when you're experiencing buggy behavior.
You can report the kernel bug using
Oops, just discovered apport-collect.
apport-collect 537396
ought to attach your logs to this report.
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I am seeing this bug in a 10.04 upgrade.
(I'm new to this. What info would you like?)
Hardware is Lenovo R61, x86_64 install.
(See cpu spikes on this forum thread:
http://ubuntuforums.org/showthread.php?t=1484450 )
** Changed in: linux (Ubuntu)
Status: Fix Released = In Progress
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This bug has just returned for me as well, this afternoon, under Lucid.
The symptoms are the same as before -- CPU spikes about every 3 seconds,
the ethernet port's lights remain perpetually lit, ethernet is non-
functional, and my CPU process monitor graph looks just like
JohnAspinall's on the
Updates from a couple of weeks ago fixed this bug in Karmic for me. It
seems appropriate to close this bug here. I will soon be upgrading to
Lucid, and if the problem exists there, I would be happy to open a new
bug.
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events/0 spikes CPU every 3 seconds since upgrade to 2.6.31-20
** Changed in: linux (Ubuntu)
Status: Incomplete = Fix Released
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Hi Charlie,
This bug was reported a while ago and there hasn't been any activity in it
recently. We were wondering if this is still an issue? Can you try with the
latest development release of Ubuntu? ISO CD images are available from
http://cdimage.ubuntu.com/releases/ .
If it
Pardon my earlier confusion. Of course, the 3945ABG is a wireless lan
card, and the problematic device in this ticket is the wired LAN card.
The correct device is:
00:19.0 Ethernet controller [0200]: Intel Corporation 82566MM Gigabit Network
Connection [8086:1049] (rev 03)
Subsystem:
I confirm turning off the eth0 fixes this problem on x61 running same
setup and kernel.
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** Tags added: karmic
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** Attachment added: AlsaDevices.txt
http://launchpadlibrarian.net/40794200/AlsaDevices.txt
** Attachment added: AplayDevices.txt
http://launchpadlibrarian.net/40794201/AplayDevices.txt
** Attachment added: BootDmesg.txt
http://launchpadlibrarian.net/40794202/BootDmesg.txt
**
On further exploration, this seems to be related to the LAN card which
is also no longer functioning.
``ifconfig eth0 down`` stops the CPU spikes.
As indicated in the above attachments, my LAN card is:
03:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 3945ABG
[Golan] Network
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