Il giorno gio, 31/01/2013 alle 12.11 +0100, Sebastian Rose ha scritto: > On 30/01/13 17:11, Wayne wrote: > > Il giorno mer, 30/01/2013 alle 13.09 +0100, Sebastian Rose ha scritto: > >> Hello all, > >> > >> since upgrading from 1.9.8 to 1.9.9.5 I'm getting constant xruns with > >> jack while doing nothing. I didn't change anything else and reverting to > >> 1.9.8 fixes the problem. I'm running a firewire interface with libffado. > >> Anyone experienced similar problems? > >> > >> best, > >> semkath > >> > > here i am running JACK 1.9.9.5 with libffado-2.1.0 and no constant > > xruns, same as previous JACK. are you sure that the CPU freq. scaling > > is set to "performance/max", i.e. not "on demand"? when i forget to do > > that i get similar behavior. on my system "cpufreq-info" from the > > "cpufrequtils" package returns the current CPU scaling settings. > > Doesn't matter if I have cpufreq set to "ondemand" or "performance", > 1.9.9.5 produces constant xruns. Everything else was taken care of: IRQ > priorities, realtime permission with cgroups and all that jazz. Maybe > it's a bug within jack. >
hmm, only other thing i can say is that i am not using cgroups, instead an older kernel with RT added 3.2.14-rt24-libre-rt24 #3 SMP PREEMPT RT. i guess stick with the older JACK until some more info is found. good luck
