Arch Linux

JokerBoy

Member

From: România

Registered: 2009-09-24

Posts: 641

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

seems like that patch fixes it, at least for me.

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vit.gorbunov

Member

Registered: 2011-01-27

Posts: 10

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

I have applied this patch a week ago, but today this bug appears again.

csslayer

Member

Registered: 2009-03-05

Posts: 85

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

I have applied this patch a week ago, but today this bug appears again.

It's might not the same reason cause your problem. (my friend meets this because of nepomuk). That patch only try to fix it with the ntrack case.

You can use gdb attach to the kded4 process and check the backtrace to see where it got stucked. In the ntrack case, it will stuck at the libntrack-nl.

voltan

Member

Registered: 2011-04-08

Posts: 5

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

It not solved yet . any solation?

mongohorst

Member

Registered: 2010-09-29

Posts: 29

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

same problem here.
almost after every resume kded4 eats nearly 100% of the cpu.
ntrack version: 1:13-1

JokerBoy

Member

From: România

Registered: 2009-09-24

Posts: 641

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

did you tried the deadloop.patch? get the src here.

PS: if you have python(3) installed the build will probably fail.

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mongohorst

Member

Registered: 2010-09-29

Posts: 29

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

did you tried the deadloop.patch? get the src here.

PS: if you have python(3) installed the build will probably fail.

thanks, that fixed it. (i had to remove python3 before compiling)

zeb

Member

From: Finland

Registered: 2008-01-14

Posts: 9

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

The deadloop patch fixed the problem for me as well. On my netbook kded4 used 100% cpu after every resume. I got ntrack to compile with python3 installed by adding

PYTHON=$( which python2 )

to the configure command line.

patstew

Member

Registered: 2008-08-04

Posts: 10

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

Here's a pkgbuild:

# $Id: PKGBUILD 118407 2011-04-06 16:43:17Z andrea $
# Maintainer: Andrea Scarpino <andrea@archlinux.org>

pkgname=ntrack
pkgver=13
pkgrel=1
epoch=1
pkgdesc="A network connectivity tracking library"
arch=('i686' 'x86_64')
url="http://launchpad.net/ntrack/"
license=('LGPL')
depends=('qt' 'libnl' 'gcc-libs')
makedepends=('python2')
optdepends=('python2')
source=("http://launchpad.net/${pkgname}/main/0${pkgver}/+download/${pkgname}-0${pkgver}.tar.gz" deadloop.patch)
md5sums=('90596b924a108f8b4eea52239ba64369' '7de6d082f5836543064d0f93494623f5')
options=('!libtool')

build() {
  cd "${srcdir}/${pkgname}-0${pkgver}"
  patch -Np0 < ${srcdir}/deadloop.patch
  PYTHON=$( which python2 ) ./configure --prefix=/usr \
    --sysconfdir=/etc \
    --localstatedir=/var
  make
}

package() {
  cd "${srcdir}/${pkgname}-0${pkgver}"
  make DESTDIR="${pkgdir}" install
}

deadloop.patch

--- modules/ntrack-libnl.c~    2011-03-27 07:37:02.000000000 +0800
+++ modules/ntrack-libnl.c    2011-04-09 23:11:33.919862769 +0800
@@ -375,6 +375,7 @@
 get_nl_link_by_index (ntrack_monitor_t *self, ntrack_list_t *linklist, int iindex)
 {
     ntrack_list_t *i = linklist;
+    ntrack_list_t *head = NULL;
     struct rtnl_link *result = NULL;
     while (i) {
         struct rtnl_link *link = i->data;
@@ -384,6 +385,10 @@
         }
         if (rtnl_link_get_ifindex(link) > iindex)
             break;
+        if (head == i)
+            break;
+        if (head == NULL)
+            head = i;
         i = i->next;
     }
     return result;

Thanks, zeb, for the python fix.

EDIT: Accidentally posted PKGBUILD for version 14 (which doesn't work properly).

Last edited by patstew (2011-05-09 17:33:54)

JokerBoy

Member

From: România

Registered: 2009-09-24

Posts: 641

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

simply use PYTHON=/usr/bin/python2 and we better stay with 013 for now.

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Silenzium

Member

From: Germany

Registered: 2011-05-03

Posts: 32

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

I've the same issue, but it I don't use resume very often. KDE just begins to eat my CPU out of nothing. The temperature of the CPU cores rises pretty fast and I even had freezes because of high CPU temperature.

voidux

Member

Registered: 2010-02-03

Posts: 31

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

And the patch doesn't help?

Freezes because of high temp is a hardware issue and is destructive for CPU, so do something with it.

citizen-stig

Member

From: Netherlands

Registered: 2010-12-07

Posts: 10

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

same thing. clean install. nepomuk disabled, akonadi disabled. up today packet. without any patches.

Nimbus

Member

From: Ivalice

Registered: 2011-03-30

Posts: 67

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

I've been having this same problem, but with both kded4 and knotify4.

After about 5-10 minutes of anything that calls upon the two running (Even outside of KDE4), it goes instantly into it's (OH NOM NOM NOM NOM NOM NOM NOM!) state of eating up my Ram and CPU, and I have 4GB of Ram with 8GB Swap, CPU spikes at 100% and I'm forced to promptly blow both kded4 and knotify4's heads off using xkill or whatever.

I'm updating today to see if anything mentioned in this thread is fixed. I bet it's ntrack but I could be wrong.

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ontobelli

Member

From: Mexico City

Registered: 2011-02-06

Posts: 127

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

Same problem here.

ntrack version: 1:13-1 doesn't help.

But I reduce the CPU usage disabling Nepomuk Semantic Desktop in  System Settings / Desktop Search / Basic Settings / Nepomuk Semantic Desktop

I hope it helps until bug is solved.

SanskritFritz

Member

From: Budapest, Hungary

Registered: 2009-01-08

Posts: 1,928

Website

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

ntrack version: 1:13-1 doesn't help.

?? We're at ntrack 1:13-2, which contains the necessary patch.

Last edited by SanskritFritz (2011-06-15 14:10:52)

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ontobelli

Member

From: Mexico City

Registered: 2011-02-06

Posts: 127

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

ntrack version: 1:13-1 doesn't help.

?? We're at ntrack 1:13-2, which contains the necessary patch.

Read the thread,

SanskritFritz

Member

From: Budapest, Hungary

Registered: 2009-01-08

Posts: 1,928

Website

Re: [KDE] 4.6.2 - kded4 eats 100% of a CPU core

So, I've read the thread. Thank you, it was very entertaining. What should I do next?
Disclaimer: I obviously missed some very important information about the necessity of downgrading to ntrack 1:13-1. Please share that with me.

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