<div class="gmail_quote"><div>[[resending to list w/ over-100K-bounce-causing-log-paste replaced by URL to complete logfile]]</div><div><br></div><div>Fernando -- Thank you for your help! I had long fixed the issues with improper parameters to Jack, so your message forced me to revisit all my old assumptions regarding CCRMA's Jack by re-adding CCRMA to my repos and updating to </div>
<div>
<div> jack-audio-connection-kit.i686 0:1.9.4-1.fc12.ccrma </div><div> jack-audio-connection-kit.x86_64 0:1.9.4-1.fc12.ccrma </div><div> jack-audio-connection-kit-example-clients.x86_64 0:1.9.4-1.fc12.ccrma </div>
<br></div><div>This Jack now starts correctly, but outputs a concerning error message; however it works, and worked beautifully until it crashed along with rosegarden in the "is it really realtime" part of my test. While running, it gave fewer of those inconsequential Xruns that I get whenever I have jack playing back music and decide to type an email message in gmail.</div>
<div><br></div><div>The concerning error message is "Cannot use real-time scheduling (RR/60)(1: Operation not permitted) // AcquireSelfRealTime error" Prior, it says "JACK server starting in realtime mode with priority 60."<br>
<br>Despite the error messages, I see the "RT" indicator flashing in the qjackctl display, and even starting mythtv and simultaneously watching an HD channel during music playback (something realtime intensive to test nonrealtimeness of music playback) only causes **** alsa_pcm: xrun of at least 0.666 msecs 13:39:04.515 XRUN callback (4)." once, when mythtv starts up while Hydrogen is playing. A second run using Rosegarden 10 without all the torture testing resulted in 0 x-runs and no crashes. I will continue testing further w/ more audio intensive apps later (these were tests were mostly MIDI, or one softsynth and sequencer, which is not very challenging).</div>
<div><br></div><div>Here's the results and logs from the first run that resulted in a crash, and a second successful run with Rosegarden (with mythfrontend no longer running and displaying off-air HD channel, and also with cpu scaling set to "performance" mode). The first run had both mythtv playing and was running in CPU "ondemand" mode (0.8G->3.4G CPU freq scaling) for maximum realtime torture of Jack. (yes I realize cpu freq scaling isn't helpful to realtime performance).</div>
<div><br></div><div><a href="http://nielsmayer.com/qjackctl-after-upgd-jack-1.9.4-1.fc12.ccrma.log">http://nielsmayer.com/qjackctl-after-upgd-jack-1.9.4-1.fc12.ccrma.log</a></div><div><div><font face="'courier new', monospace"><span style="font-size:x-small"><div>
<br></div></span></font></div><div><font face="'courier new', monospace"><span style="font-size:x-small"><p style="margin-top:0px;margin-bottom:0px;margin-left:0px;margin-right:0px;text-indent:0px">
</p></span></font></div></div><div>Niels<br><a href="http://nielsmayer.com" target="_blank">http://nielsmayer.com</a><br></div>
</div><br>