[gentoo-user] KDE4.6 runaway process after wake up

[gentoo-user] KDE4.6 runaway process after wake up

[Mick]

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I've noticed this problem twice so far:

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND                                                                                                                         
14928 michael   21   1  340m  22m  15m R  100  0.6   2:24.84 kdeinit4: kded4 
[kdeinit]                                                                                                        
14658 michael   21   1  980m  35m  24m R  100  0.9   2:24.83 /usr/bin/knotify4          

On both occassions it happened when I woke up the machine from sleep (suspend 
on ram).  Any idea what might be causing it? 
-- 
Regards,
Mick

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Re: [gentoo-user] KDE4.6 runaway process after wake up

[Dale]

Mick wrote:
> I've noticed this problem twice so far:
>
>    PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> 14928 michael   21   1  340m  22m  15m R  100  0.6   2:24.84 kdeinit4: kded4
> [kdeinit]
> 14658 michael   21   1  980m  35m  24m R  100  0.9   2:24.83 /usr/bin/knotify4
>
> On both occassions it happened when I woke up the machine from sleep (suspend
> on ram).  Any idea what might be causing it?
>    

If those are the only ones you have, you are lucky.  This is one reason 
I switch to single user sometimes.  I log out of KDE and have a BUNCH of 
KDE processes still running.  This is a desktop and no suspend stuff 
being used.  I usually go to single user, kill them off then switch back 
and login.

I don't recall having this issue with KDE3 so maybe it is something they 
are working on.  I did notice the other day that I had only a couple 
after the openrc upgrade.  I don't know if one has anything to do with 
the other tho.  I also did some KDE updates as well.

Dale

:-)  :-)

Re: [gentoo-user] KDE4.6 runaway process after wake up

[Mick]

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On Sunday 15 May 2011 19:19:38 Dale wrote:
> Mick wrote:
> > I've noticed this problem twice so far:
> >    PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
> > 
> > 14928 michael   21   1  340m  22m  15m R  100  0.6   2:24.84 kdeinit4:
> > kded4 [kdeinit]
> > 14658 michael   21   1  980m  35m  24m R  100  0.9   2:24.83
> > /usr/bin/knotify4
> > 
> > On both occassions it happened when I woke up the machine from sleep
> > (suspend on ram).  Any idea what might be causing it?
> 
> If those are the only ones you have, you are lucky.  This is one reason
> I switch to single user sometimes.  I log out of KDE and have a BUNCH of
> KDE processes still running.  This is a desktop and no suspend stuff
> being used.  I usually go to single user, kill them off then switch back
> and login.
> 
> I don't recall having this issue with KDE3 so maybe it is something they
> are working on.  I did notice the other day that I had only a couple
> after the openrc upgrade.  I don't know if one has anything to do with
> the other tho.  I also did some KDE updates as well.

Sorry I should have been clearer:

I woke up the machine and noticed the fan was racing.  Top showed these two 
being the culprits.  I logged out of X and back on a console they were still 
running wild.  I had to kill them manually to calm things down.

When out of X in the console I seem to recall all other KDE processes had 
terminated.

-- 
Regards,
Mick

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Re: [gentoo-user] KDE4.6 runaway process after wake up

[Alan McKinnon]

Apparently, though unproven, at 20:43 on Sunday 15 May 2011, Mick did opine 
thusly:

> > I don't recall having this issue with KDE3 so maybe it is something they
> > are working on.  I did notice the other day that I had only a couple
> > after the openrc upgrade.  I don't know if one has anything to do with
> > the other tho.  I also did some KDE updates as well.
> 
> Sorry I should have been clearer:
> 
> I woke up the machine and noticed the fan was racing.  Top showed these
> two  being the culprits.  I logged out of X and back on a console they
> were still running wild.  I had to kill them manually to calm things down.
> 
> When out of X in the console I seem to recall all other KDE processes had 
> terminated.

FWIW, I have the same thing occasionally, also on wake-up after suspend to 
RAM. In my case, something in the kdepim/akonadi/nepomuk/virtuoso stack seems 
to be the underlying culprit - one of those apps is hogging cpu time and 
kdeinit4/knotify are the ones that block the most hence they show up in top.

I tried various things involving re-merging stuffs, none of which helped. Then 
I figured maybe the mail indexer really wanted to do something valid, so I let 
it be and let it do whatever it wanted overnight. Since then the runaway 
process problem hasn't happened again. Perhaps coincidence, perhaps not.

Maybe you could try the same?


-- 
alan dot mckinnon at gmail dot com

Re: [gentoo-user] KDE4.6 runaway process after wake up

[Yohan Pereira]

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i generally kill knotify and kded when they misbehave and haven't encountered 
any noticeable problems after doing so. I hate it when i forget to check for 
these two before starting an overnight portage update.

also heres a blog post related to the kded problem i seen on planet kde 
recently.

http://kdepepo.wordpress.com/2011/05/11/troubleshooting-kded4-bugs/

-- 

- Yohan Pereira

"A man can do as he will, but not will as he will" - Schopenhauer

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Re: [gentoo-user] KDE4.6 runaway process after wake up

[Mick]

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On Tuesday 17 May 2011 09:17:45 Yohan Pereira wrote:
> i generally kill knotify and kded when they misbehave and haven't
> encountered any noticeable problems after doing so. 

Yes, same here.  Once I kill them, no problem thereafter.

They don't seem to me to be related to some process running purposufely doing 
something useful (or even intentional).  With both pegged at 100% CPU they 
seem more like they've gone into a loop/race condition.

So I'm not sure that letting them run for any length of time will achieve 
anything - but will give them 5-10 minutes next time to see if they go away on 
their own.


Another thing I noticed on a different box (x86) is that if more than say 20% 
or memory is being used and I select the machine to go to sleep (to RAM) it 
crashes.  The disk spins down immediately, the monitor and input devices go to 
sleep, but the CPU and fans continue to run.  The box will not respond to 
anything other than pulling the plug.

I am not sure if there is something incompatible with the memory 
modules/controllers (I doubt it because this was a really rare event with 
KDE4.5) but now with KDE4.6 it happens every time.  Any ideas what this might 
be attributed to?
-- 
Regards,
Mick

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