kde daemon crashes

[Jacopo Nespolo]

Dear All,
I'm running on Sid with all the latest  upgrades. Kde Daemon often
crashes on me, sometimes randomly, sometimes as I open Amarok or
resume from screen lock or sleep. I wasn't really able to link the
crash to a specific series of events.

Unfortunately, when I try to generate a report, I can't get any
backtrace whatsoever. Can anyone point out which packages I should
install to at least try to understand what's going on?
Has anyone else got this problem?

I used to run on testing up until about a month ago and wasn't having
this issue back then. I moved to sid via a fresh install, so it
shouldn't be an upgrade issue,  but rather a regression.

Any help is most welcome.
Thanks all,
Jacopo


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Re: [debian-kde] Re: plasma desktop hangs

[David Jarvie]

On Monday 02 July 2012 16:20:27 chymian wrote:
> I followed your advice and opened up a new thread:
> 
> http://forum.kde.org/viewtopic.php?f=67&t=106640

Just a word of warning - many KDE developers do not read forums. Unless you 
know that the forum you posted to is read by developers, you should raise 
issues either on the appropriate KDE mailing list (see http://lists.kde.org) or 
if it's a bug, at https://bugs.kde.org.

-- 
David Jarvie.
KDE developer.
KAlarm author -- http://www.astrojar.org.uk/kalarm


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Re: BUG: plasma desktop hangs on corrupted configplasma-desktop-appletsrc

[Kevin Krammer]

On Sunday, 2012-07-01, chymian wrote:
> further update & workaround: 2 BUGs found.

> indeed, the soho-plasmoids could not connect to it's server.
> but even more strange:
> I removed all but one weather-plasmoid, which works flawlessly - and I
> still get the same error & behavior as before. errorlogs & desktop-freeze,
> but only 6 times in a row now.

> do the KDE-maintainers want me to open 2 bugs on that, or do you take it
> from here?
>
> 1. plasma-desktop should not freeze on failed plasmoid
>   aka: Failed to get chart. Updating... freezes
> plasma-desktop
> 
> 2. ~/.kde/share/configplasma-desktop-appletsrc gets corrupted

report one against the applet that freezes (it should do networking 
asynchronously if it does it in the main thread) and one against plasma-
desktop for the config file corruption.

Cheers,
Kevin


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Re: plasma desktop hangs

[Kevin Krammer]

On Monday, 2012-07-02, Mirosław Zalewski wrote:

> I have found that brainstorm discussion from few years back:
> http://forum.kde.org/viewtopic.php?f=90&t=45255
> It seems that rationale was: plasmoid crash causes whole desktop to crash,
> so we should run them in separate processes. But plasmoids don't crash
> that often now, so we do not have to run them in separate processes.

The main decision factor is that at least X11, which is currently the main 
target for Free Software desktop shells, does not offer suitable mechanisms of 
merging multiprozess drawings, especially if the "container" needs to be able 
to manipulate the "child" drawings in some way (e.g. control geometry or 
orientation).

I don't know enough about Wayland but this might become viable at that point.

> Your case shows that there is still pretty strong reason to run plasmoids
> in separate processes (if only my suppositions are right). You should
> definitely post your findings in KDE forums - either in linked thread, or
> in new thread (which may get more attention).

One thing that is not touched at all by the limitation regarding visualization 
is data processing. Applets are not restricted in any way to either use event 
based asynchronous processing, thread based processing or out-of-process 
processing.

> But you should not post a bug report to Debian's BTS - there is really not
> much that Debian's KDE packaging team can do about it.

Indeed.

As I wrote in my other reply, make sure to report the freeze issue against the 
applet causing it, it's developers needs to learn that just like with 
applications networking must not be done in a way that blocks UI.

Cheers,
Kevin


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Re: kde daemon crashes

[Xavier Brochard]

Jacopo Nespolo wrote: 
> Unfortunately, when I try to generate a report, I can't get any
> backtrace whatsoever. Can anyone point out which packages I should
> install to at least try to understand what's going on?

You need to install corresponding kde debug packages. They have name ending 
in "-dbg" (it will install also qt and libc6 debug packages).

xavier


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Re: kde daemon crashes

[Sune Vuorela]

On 2012-07-06, Jacopo Nespolo  wrote:
> Dear All,
> Unfortunately, when I try to generate a report, I can't get any
> backtrace whatsoever. Can anyone point out which packages I should
> install to at least try to understand what's going on?

Finding the right bits here is a bit convoluted, since 'other people'
can plug in bits to the kde daemon.

But the first place to start is to install kdelibs5-dbg and get a
backtrace. From there, we can hopefully get a idea on where to go next.

/Sune


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Re: kde daemon crashes

[Martin Steigerwald]

Am Freitag, 6. Juli 2012 schrieb Jacopo Nespolo:
> Dear All,
> I'm running on Sid with all the latest  upgrades. Kde Daemon often
> crashes on me, sometimes randomly, sometimes as I open Amarok or
> resume from screen lock or sleep. I wasn't really able to link the
> crash to a specific series of events.
> 
> Unfortunately, when I try to generate a report, I can't get any
> backtrace whatsoever. Can anyone point out which packages I should
> install to at least try to understand what's going on?
> Has anyone else got this problem?
> 
> I used to run on testing up until about a month ago and wasn't having
> this issue back then. I moved to sid via a fresh install, so it
> shouldn't be an upgrade issue,  but rather a regression.

On my ThinkPad T520 I have one crash per login. But AFAIR only for one of 
my KDE users. I didn´t take time to research on this.

-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7


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Re: [debian-kde] Re: plasma desktop hangs - BUG 303105 & 303106

[chymian]

Am 06.07.2012 10:02, schrieb David Jarvie:

On Monday 02 July 2012 16:20:27 chymian wrote:

I followed your advice and opened up a new thread:

http://forum.kde.org/viewtopic.php?f=67&t=106640

Just a word of warning - many KDE developers do not read forums. Unless you 
know that the forum you posted to is read by developers, you should raise 
issues either on the appropriate KDE mailing list (see http://lists.kde.org) or 
if it's a bug, at https://bugs.kde.org.


done, I've opend the two bugs:


Bug 303105  - widget-SOHO: 
hangs plasma on lost network-connection


against plasma. since there was no widget-soho component-entry, I opend 
it against general - correct?


Bug 303106  - PLASMA 
corrupted ~/.kde/share/configplasma-desktop-appletsrc - System hangs


against plasma-desktop.


have a nice one
günter