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
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Received on Thu Sep 17 16:15:06 2009
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