Version: (using KDE KDE 3.3.2) Installed from: Gentoo Packages Compiler: gcc 3.3.4 -march=pentium4 -O3 -pipe -fomit-frame-pointer OS: Linux whenever I open a mp3 file in noatun from konqueror and then press the "pause" button, the whole system crashes, no reaction whatsoever. using Alsaplayer interface, Split Playlist, and Tag Reader Plugin.
I have been getting this bug for a while with different KDE versions. My sound card is EMU10K1, I'm using ALSA with arts. Kernel version is now 2.6.9-mm1.
I can confirm the problem with a total different config: gcc 3.4.3, -march=athlon-xp, a gentoo-2.4.26 kernel and alsa 1.07. The box freezed when I just try to play something. I could not even login remotely via ssh. After restarting the box I noticed, that the cpu temperature was 6° C higher than usual.
Reporting a crash without a useful backtrace is not really helpful :( Furthermore "the whole system crashes" sounds more like a kernel and/or artsd problem. Also try turning off realtime priority for artsd and see if that will trigger an artsd crash instead of a system hang.
yes thats right, turning off realtime priority did create an artsd crash. Unfortunately i don't have debug information compiled. I tried recompiling the arts package with CFLAGS="-march=pentium4 -O3 -pipe" FEATURES=nostrip USE="debug" emerge arts but that didn't really help. Do I have to recompile the whole kdelibs or kdebase?
the problem seems to be in the "Alsaplayer" interface, turning it off removes the problem with the pause button.
perhaps we should remove RT priority as it doesn't seem necessary as of aKode's release. Are you saying you can pause without the Alsaplayer interface and all is well? Perhaps the bug will go away if you remove -O3 or (less likely) -march=pentium4 (I'd say it's likely a gcc bug!) -Charles
Yes I tried the other interfaces besides Alsaplayer and there aren't any problems with the pause button. I recompiled arts and kdeaddons without those compiler flags, but it didn't help, Alsaplayer still crashes arts.
With realtime priority turned off, my box neither does hang, nor does artsd crash. >perhaps we should remove RT priority as it doesn't seem necessary as of aKode's release. If all applications benefit from the akode plugins and not only KDE apps, then it is a good idea. On the downside all users would have to install kdemultimedia + kdebase, just for libakode*. I failed to gather information about aKode (and I'm too lazy to dig into the code). Is there a mailing list thread or something like this, you could point me to?
Would like to note that aRts without realtime priority causes dropouts en masse. With KDE 3.4.0 it's even worse. No matter if akode is used or not. GStreamer as replacement isn't that good, too. The combination amarok+xine plays perfectly fine under "any" load.
Arts is no longer developed and has been unmaintained for quite some time - more than 2 years. With phonon as the replacement for arts in KDE4, we're closing out all the arts bugs in Bugzilla since there is no chance of them being fixed. Thanks