Gabriel M. Beddingfield wrote: > > > On Thu, 17 Sep 2009, Grammostola Rosea wrote: >>> You seem to be somewhat alone with this one. No offence, but it does >>> sort of hint that your system setup might be less than ideal. With a >>> little more info, some help/assistance might be possible. >> I think my system is configured pretty well. I have no problems with any >> other audio app. > > When I was tracing 'zombification' issues in Hydrogen, it was very > helpful to me (the developer) to know: > > * jackd settings when firing up the application > (e.g. jackd -R -d alsa -p 4 -n 2 -r 192000 -Xseq) > > * A little more about the system (memory, CPU, > distro, jackd version) > > * Any command-line options you used to start > the application and cause the fault. > > Obviously, Zombies happen more often with aggressive JACK settings. > > On the other hand, even with that info it is generally hard to trace > out a Zombification issue. The zombie notification happens a few > milliseconds _after_ the event that waited -- so, backtraces weren't > very helpful. Increasing your logging can corrupt your measurements > because I/O is one source of a zombie. It was even possible, for > instance, for one application to take just a little too long (leaving > no time for the 2nd app). JACK would then blame the zombification on > the 2nd app. > > I ended up having to do a static code analysis to search for memory > allocation, re-do our logging scheme (because its mutex was causing > locks), and discover some new taboo functions. The biggest surprise > (for me) is that Qt's QString constructor and operator= could not be > used in real-time code. /usr/bin/jackd -R -dalsa -dhw:0 -r48000 -p128 -n2 -Xseq -zt jackd (0.116.2+svn3592-3) Debian testing, Pentium 4 32bit The only strange thing on my system This is in my /etc/security/limits.conf @audio - rtprio 99 @audio - nice -10 @audio - memlock 970215 But ulimit -l give unlimited I tried to figure out how come on #jack, but no solution yet But afaik Zyn should also run properly with unlimited... \r _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user
