...

I am using 64 frames (2.67 ms) with jackd and my hammerfall multiface. When I run pd and jackd as root this latency works fine except after 10-20 min I get a whole host of xruns and have to restart both pd and jackd. So it should work at this latency...

hm ... use higher latencies (sorry)

Despite only using at most 15% of my available RT time? (The percentage of window time available to form audio frames in jack I think)

It does of course work with higher latencies, but... :(

Also are there known readsf~ problems with x86_64 pd versions? I cant open a wav file in pd, but I can aplay it just fine.

Lastly I see that tables seem fully writable (not previously available for x86_64) but how do i test if tabosc(4)~ works properly if I cannot read in a sound file?

I have been too busy to be smart enough to figure out a simple test for this.

Thanks again for the help!