Welcome to JACK, the Jack Audio Connection Kit. Please see the website (http://jackit.sf.net/) for more information. NOTE: If you are using reiserfs or ext3fs or anything except ext2fs for the directory where JACK puts its temporary files (/tmp by default), then the JACK team recommends that you do *one* of the following: ---------------------------- Mount a tmpfs on /tmp. You should have a lot of swap space available in case some programs try to write very large files there. In your /etc/fstab add a line: none /tmp tmpfs defaults 0 0 You'll probably want to reboot here, or kill X then 'mount /tmp'. ---- OR ---- Alternatively, you can do this without affecting your /tmp: # mkdir /mnt/ramfs [edit /etc/fstab and add the following line] none /mnt/ramfs tmpfs defaults 0 0 Then add --with-default-tmpdir=/mnt/ramfs to the JACK configure line when you build it. No clients need to be recompiled. ------------------------------ Failure to do one of these could lead to extremely poor performance from JACK, since its normal operation will cause bursts of disk I/O that are completely unnecessary. This suggestion can also be used by ext2fs users if they wish.