So this is the revised version. Antti - could you add this to the jack FAQ and I will link to it in the low latency howto. To reduce the audio buffer overruns while using JACK under certain conditions. It has been found that mounting /tmp/jack as tmpfs (in RAM) solves the problems that many people have experienced with LOCKUPS << here while using JACK.The solutions mentioned above (and below) help when your /tmp directory is mounted on a journalled filesystem. Just put this in your /etc/fstab none /tmp/jack tmpfs defaults 0 0 There is also a compile option to enable JACK to place its FIFOs on a ram-based filesystem follows: --------------------------------------------------------------- # mkdir /mnt/ramfs [edit /etc/fstab and add the following line] none /mnt/ramfs tmpfs defaults 0 0 Then use --with-default-tmpdir=/mnt/ramfs to the JACK configure line when you build it. No clients need to be recompiled. ----------------------------------------------------------------