On Tuesday, May 21, 2013 23:26:03 Dominik George wrote: > Hi, > > > On Sunday, May 12, 2013 20:07:52 Dominik George wrote: > > > We already limited the botification number to one event per minute, > > > however, the code still freezes KDE. > > > > by "KDE" i assume you mean the plasma-desktop process (and that other > > application windows remain responsive; alt-tab'ing still works, etc) > > actually not - the whole desktop freezes, including any running > applications.
Huh .. that implies one of a limited number of possibilities: * x itself is dieing (in which case there is little we can do about it); this is unlikely, particularly if notifications from other applications work. * the call is causing something on the system to consume large amounts of memory, and the machine has gone into a swap storm. you said that it sometimes makes the dbus call more than once .. could it be that it is calling it a large number of times? ... i can't think of another realistically possible explanation for all applications freezing as well. (excessive CPU usage should still offer some interactivity rather than a complete freeze ...) one really out there possibility is if you are using desktop effects (the default) that kwin is freezing which would give a similar appearance even though the system would still actually be up. that's a very remote possibility in this case, though. might be useful to ssh into the machine from a second system and see what is happening on the affected system when it freezes. > > > Attached is the plasmoid code that crashes, removing the comment sign at > > > the beginning of line 317 introduces notifications and the freeze. > > > > i'm not sure why, but you are using the org.kde.KNotify dbus interface > > directly via QtDBus .. and doing so with a blocking call. > > Because this way was the only one I found. It is documented in a ton of > places. Ugh. :/ Copy and paste gone wild :) It happens ... -- Aaron J. Seigo
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